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人教版 (2019)选择性必修 第一册Unit 5 Working the Land课文内容课件ppt
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这是一份人教版 (2019)选择性必修 第一册Unit 5 Working the Land课文内容课件ppt，文件包含UNIT5Period3pptx、UNIT5Period3DOC等2份课件配套教学资源，其中PPT共60页， 欢迎下载使用。
Ⅰ.TranslatinTry t translate and remember the fllwing useful expressins：1．In my eyes/pinin/view…【答案】在我看来/我认为……2．I’d rather…【答案】我宁愿……
¤SPEAKING(Sharing yur pinins)
3．Withut a dubt…【答案】毫无疑问……4．It’s a pity that…【答案】很遗憾……5．I think/guess/believe…【答案】我认为……6．The advantages are…【答案】优点是……
7．I’d prefer…because…【答案】我宁愿…… 因为……8．I agree/disagree…【答案】我同意/不同意……9．I think s.【答案】我想是的。10．I have a feeling that…【答案】我有一种感觉……
11．My impressin is that…【答案】我的印象是……12．My view/pinin/belief is that…【答案】我的观点是……
Ⅱ.WritingUse the abve expressins t talk abut the advantages and disadvantages f rganic farming and chemical farming. Yu have t finish it with at least 60 wrds.______________________________________________________________________________________________
【答案】One pssible versin：Gina：In my pinin, rganic farming is gd t ur health. And chemical farming has many disadvantages. S, I think we shuld say n t chemical farming.Lisa：I dn’t agree with yu. Althugh chemical farming will d harm t us, we can’t feed s many peple in the wrld withut chemical farming. They serve the high demand fr fd arund the wrld.
Tm：The advantages f rganic farming are green and healthy and we can live withut disease. S, I’d prefer rganic fd.Frank：It’s a pity that chemical farming brught us disadvantages but it als helped us human beings a lt. I believe we can find a better way t prduce rich sil and als we can find a way t keep peple and the envirnment as healthy as pssible.Ted：I can’t agree mre.
1．得到广泛使用____________________2．随着时间的推移________________3．例如________________4．此外________________5．相应地；转而；依次，轮流________________6．make them ill________________7．因为________________
be in widespread use
fr example
in additin
8．as fr chemical fertilisers________________9．营养足； 富有营养________________10．have less flavur as well________________11．作为一种选择________________12．转向________________13．keep their sil rich and free f disease_________________________14．例如________________
be rich in nutritin
as an alternative
switch/turn t
保持土壤肥沃和免受病害
fr instance
15．different depths f sil________________16．put dwn deep rts________________17．keep them frm ding s________________18．满足那样的需求________________19．keep peple and the envirnment as healthy as pssible_______________________________20．集中(注意力、精力等)于…；对(某事或做某事)予以注意________________
meet that need
让人们和环境尽可能地保持健康
1．Fr example, pesticides can damage the land by _______________(不仅杀死有害的细菌和昆虫), __________(还可以杀死有益的昆虫)．(nt nly…but als…)【答案】killing nt nly harmful bacteria and insects; but als helpful nes
2．As fr chemical fertilisers, crps grwn with them usually ______________________________________(生长得太快而不含丰富的营养)．(t…t…)【答案】grw t fast t be rich in nutritin3．Therefre, ____________________________(找到一个合适的解决方案还有很长的路要走) that puts sufficient fd n the dinner table.(there be句型)【答案】there is still a lng way t find a suitable slutin
Ⅰ.阅读课文，判断信息正误( )1.Chemical pesticides and artificial fertilisers can fight crp disease and increase prductin. ( )2.Pesticides can damage the land by nly killing harmful bacteria and insects. ( )3.Chemical fertilisers make crps grw fast t be rich in nutritin.
( )4.Organic farmers keep their sil rich and free f disease thrugh natural means. ( )5.Organic farming serves the high demand fr fd arund the wrld.【答案】1－5 TFFTF
Ⅱ.阅读课文，选择正确选项( )1.Why did many farmers welcme the intrductin f chemical farming?A．They can fight crp disease and increase prductin. B．They harm bth the land and peple’s health. C．They can help prduce rich sil. D．They are nt expensive.
( )2.What cncerns many peple abut the use f pesticides?A．Pesticides can damage the land. B．Chemicals can stay in the sil fr a lng time.C．Pesticides can kill harmful bacteria and insects. D．Chemicals may make peple ill and even cause cancer.
( )3.Why d rganic farmers change the kind f crp grwn in each field every few years?A．It helps put imprtant minerals back int the grund. B．It can avid damage t the envirnment. C．It can help increase utput. D．The writer didn’t tell us.
( )4.Why can’t we stp the use f man-made chemicals in agriculture entirely?A．Organic farming cst us a lt f mney. B．Organic farming can meet peple’s need. C．Chemical farming brught us huge prfit. D．Chemical farming helps serve the need fr fd.
1．in turn相应地；转而；依次；轮流(P55)This affects the crps grwn n the land and, in turn, the animals and humans wh digest them.【翻译】这影响了生长在土地上的作物，进而影响消化它们的动物和人类。
in ne’s turn轮到某人；接着by turns轮流；依次take turns ding/t d…轮流做……It’s ne’s turn t d sth.轮到某人干某事
The girls tk it in turn t wipe dwn the tables after meals.女孩子们饭后轮流擦桌子。During the summer hlidays, the teachers were n duty by turns. 暑假期间，老师们轮流值班。When it is my turn, I realized why the prcess was mving s slw. 当轮到我的时候，我明白进程为什么这么慢了。
[针对练习]单句语法填空(1)The girls called ut their names ________ turn.(2)They tk ________(turn) t care abut their parents.(3)It is my turn ________(clean) the classrm this week.【答案】(1)in (2)turns (3)t clean
完成句子(4)She ________________________________. 她依次向每一个人问同样的问题。【答案】asked everyne the same questin in turn/by turns
2．essential adj.完全必要的； 极其重要的(P55)They may lk beautiful n the utside, but inside there is usually mre water than essential minerals, and they ften have less flavur as well.【翻译】它们可能外表看起来很漂亮，但里面通常有更多的水，而不是重要的矿物质，而且它们的味道通常也更差。
be essential t/fr对……很重要It is essential that…(shuld) d…做……是完全必要的It is essential fr sb.t d…对某人来说做……是完全必要的
It is essential t knw where the prblem lies. 完全有必要知道问题在哪里。Even in small cmpanies, cmputers are an essential tl. 即使在小公司里，计算机也是极为重要的工具。It is essential that we (shuld) deal with the prblem. 我们很有必要处理这个问题。
[针对练习]单句语法填空(1)Sun and water are essential ________ the grwth f crps.(2)It is essential fr us ________(set) ur gal realistically.(3)It is essential that yu ________(learn) Chinese histry.【答案】(1)t/fr (2)t set (3)(shuld)learn
完成句子(4)________________ yu shuld cme hme early.你很有必要早点回家。【答案】It is essential that(5)A rich and varied cultural life ________________.丰富多样的文化生活对这对夫妇而言是至关重要的。【答案】is essential t/fr this cuple
3．alternative n．可供选择的事物adj.可供替代的；非传统的(P55)As an alternative, sme farmers have switched t rganic farming, and many custmers have turned t rganic fd when they shp at the lcal grcery.【翻译】作为另一种选择，一些农民转向有机农业，许多顾客在当地杂货店购物时转向有机食品。
(1)have n alternative/chice but t d sth.别无选择只好做某事have the alternative f ding sth.有做……的选择；可以做……there’s n alternative…but t d sth.……别无选择只好做某事an alternative t… ……的替代品(2)alternatively adv.可供选择地
He gave in nly at the last mment because he had n alternative. 他只是在最后一刻因为没有选择才做了让步。The nly alternative t being taken prisner was t die fighting.除了当俘虏之外，唯一的选择就是奋战至死了。If he wants t g t Hng Kng tnight, he has n alternative but t g by air. 如果他今晚想去香港，除了坐飞机外别无选择。
【特别提醒】“别无选择只好做……”的其他表达形式还有：have n chice but t d sth.; can’t d sth. but d sth.; can d nthing but d sth.等。在这些结构中若but之前出现实义动词d的某种形式，but之后要用省略t的不定式，否则，but之后的t不能省略。
[针对练习]单句语法填空(1)I had n alternative but ________(accept) the ffer.(2)We culd walk r ________(alternative) we culd g in Ted’s car.(3)If yu dn’t like the schl lunch, yu have the alternative f ________(bring) yur wn.【答案】(1)t accept (2)alternatively (3)bringing
完成句子(4)Finding himself under fire frm all quarters, he _________.在这四面楚歌的情况下，他除了放弃他的计划没有别的选择。【答案】had n alternative but t abandn his scheme
4．instance n．例子；实例；事例(P56)Fr instance, they may grw crn r wheat in a field ne year, and then grw beans there the next.【翻译】例如，他们可能一年在一块地里种玉米或小麦，然后第二年再改种豌豆。
fr instance例如in the first instance第一，首先
I can cite quite a few instances t illustrate this. 我可以举出好几个例子来说明这件事情。There have been several instances f vilence at the schl. 在学校有几起暴力事例。Mst fd webs, fr instance, cnsist f many weak links rather than a few strng nes. 例如，大多数食物网由许多薄弱链接组成，而不是几个强有力的链接组成。
[针对练习]单句语法填空(1)________ the first instance yur child will be seen by an ear, nse and thrat specialist.(2)There are a number f imprvements, ________ instance, bth muse buttns can nw be used.【答案】(1)In (2)fr
完成句子(3)This prblem seemed t be cmplex ______________，but it culd be easily slved. 这个问题乍一看似乎很复杂，但其实很容易解决。【答案】in the first instance(4)She has mastered several freign languages, ___________，French. 她精通几种语言，例如法语。【答案】fr instance
5．depth n．向下(或向里)的距离；深(度)(P56)Organic farmers als plant diverse crps that use different depths f sil t help keep it rich.【翻译】有机种植的农民也种植不同的农作物，利用不同深度的土壤来保持土壤肥沃。
(1)in depth全面；深入；详细frm the depth f the mind从心底里；真心地at a depth f…在……的深度in the depths f…在……正中；在……深处(2)deep adj.深的 adv.深深地(3)deeply adv.深深地，强烈地(4)deepen v．(使)变深，(使)加深
The smaller lake ranges frm five t furteen feet in depth.小一些的湖深度从5英尺到14英尺不等。I was in the depths f despair when the baby was sick.孩子生病时我陷入了绝望的深渊之中。The submarine lies at a depth f 6,000 feet in the Barents Sea.潜艇位于巴伦支海水下6,000英尺深处。
【语境串联】She belngs t herself. Nbdy can measure the depth f her heart, deep as sea. 她属于自己，没有人能测出她心有多深，深似大海。
[针对练习]单句语法填空(1)Plant the beans ________ a depth f abut six inches.(2)This is a new subject and needs t be explred ________ depth.(3)When her sn gt injured and disabled in the accident, she was in ________ depths f despair.【答案】(1)at (2)in (3)the
完成句子(4)This subject will be cvered ________________ next term.这个话题将在下学期深入讨论。【答案】in depth(5)________________________________________，many things I did with my father still live.在我记忆深处，我与父亲一起做过的很多事仍然存在。【答案】In the depths f my memry
1．(P55)Fr example, pesticides can damage the land by killingnt nly harmful bacteria and insects, but als helpful nes.【翻译】例如，杀虫剂不仅可以杀死有害的细菌和昆虫，还可以杀死有益的昆虫，从而破坏土地。
【句式剖析】句中nt nly…but als…“不仅……而且……”，用作并列连词，相当于“nt just …but als…”。
(1)该结构常用来连接并列成分，如两个主语、谓语、宾语、表语、定语、状语或句子，在意义上强调后者，其中als可以省略。(2)“nt nly…but als…”连接主语时，谓语动词的数遵循就近原则；当nt nly 位于句首连接两个句子时，第一个分句要用部分倒装，第二个分句不倒装。
Shakespeare was nt nly a writer but (als)an actr.莎士比亚不仅是一位剧作家，而且是一位演员。Light and bright clrs make peple nt nly happier but mre active.淡雅和鲜艳的颜色不但使人看了高兴，也会使人更加活泼。The Americans and the British nt nly speak the same language but als share a large number f scial custms.英国人和美国人不但语言相同，而且有很多相同的风俗习惯。
[针对练习]单句语法填空(1)They nt nly brke int his ffice ________als tre up his papers.(2)Nt just the students but als their teacher ________(like) playing ftball.【答案】(1)but (2)likes
完成句子(3)Nt nly ________________ crrectly, but he als speaks it fluently.他不仅能准确地说英语，而且说得很流利。【答案】can he speak English(4)______________ has saved the bys frm the fire.不仅是你而且还有他从火中救出了那些男孩。【答案】Nt nly yu but (als)he
2．(P55)As fr chemical fertilisers, crps grwn with them usually grw t fast t be rich in nutritin.【翻译】至于化肥，用它们种植的作物通常生长得太快，而不含丰富的营养。【句式剖析】句中t…t…意为“太……而不能……”，表示否定含义。
(1)t＋adj.＋t d sth. 其中的形容词为表示情感、心情或倾向等主语态度的词，常见的有anxius, eager, glad, happy, pleased, ready, willing等，表示肯定意义“非常/很……干某事”(2)nt/never t…t d sth. 并不太……做某事(3)nly t…t d sth. 非常……做某事(4)can’t/can never…t…再……也不过分
He is t shy t speak t her. 他太害羞，不敢同她讲话。It’s t cheap t be gd. 这东西太便宜，好不了(即便宜无好货)。He is t yung t knw right frm wrng. 他太小，还分不清是非。
[针对练习]单句语法填空(1)Yu can’t be t careful ________(d) yur hmewrk.【答案】t d
完成句子/一句多译(2)Never ________________.活到老，学到老。【答案】t ld t learn(3)He is ________________.他总是乐于助人。【答案】t ready t help thers
(4)当她听到这则消息时激动得说不出话来。She was ________________ she culdn’t say a wrd when she heard the news. ＝She was ________________ when she heard the news. 【答案】s excited that; t excited t say a wrd
Ⅰ.配对练习请从后面的七个选项中选出最恰当的一个补全句子。1．Over time, hwever, ________ is that their lng-term use can smetimes harm bth the land and peple’s health.2．This affects the crps grwn n the land and, in turn, the animals and humans ________.
3．________ these chemicals may make them ill and even cause cancer.4．________ is because they put imprtant minerals back int the grund, making it ready fr the next batch f crps.5．Organic farmers als plant diverse crps ________.
A．Many peple wrry thatB．what sme scientists have fundC．wh digest themD．that puts sufficient fd n the dinner tableE．Why different crps are grwnF．that use different depths f sil t help keep it richG．Whse bk is gd【答案】1－5 BCAEF
Ⅱ.课文语法填空Chemical pesticides and artificial fertilisers have been in widespread use in farming 1.________ the middle f the 20th century, but scientists fund that their lng-term use can smetimes 2.________ (d) harm t bth the land and peple’s health. In mst 3.________(cuntry), sme pesticides like DDT have been prhibited because f the damage 4.________(cause) t peple and the envirnment.
5．________(slve) the prblem, sme farmers have switched t rganic farming. They use natural waste frm animals as fertiliser instead 6.________ artificial fertilizers. By ding s, they make the sil in their fields 7.________(rich) in minerals than befre. Many ther methds are als used t prduce rich sil. Farmers ften change the kind f crp grwn in each field every year. In this way, sme imprtant minerals 8.________(put) back int the grund.
Sme peple wuld prefer t stp the use f man-made chemicals in agriculture 9.________(cmplete), but rganic farming can’t serve the high demand fr fd arund the wrld. S scientists have t find a 10.________(suit) slutin t the prblem.【答案】1.since 2.d 3.cuntries 4.caused5．T slve 6.f 7.richer 8.are put 9.cmpletely10．suitable
Ⅰ.单句语法填空1．He asked each f us ________ turn t describe hw the ɪnternet had affected ur lives. 2．If he takes n this wrk, he will have n alternative but ________(meet) an even greater challenge.3．What’s the ________(deep) f the lake?4．________ nly is she pretty but als kind-hearted.
5．Smetimes, I was t weak ________(g) t schl s my educatin suffered.6．There ________(be) tw thusand students in ur schl. 7．Sme fds ________(digest) mre easily than thers.8．She is an ________(essential) selfish persn.9．There are jbs mre dangerus than truck driving; ________ instance, training lins.
10．Are yu sure yu ________(entire) understand the imprtance f cmpleting these frms as accurately as pssible?【答案】1.in 2.t meet 3.depth 4.Nt 5.t g6．are 7.are digested 8.essentially 9.fr 10.entirely
Ⅱ.短语填空in additin, in turn, because f, as fr, as well, fr instance1．I’ll d sme reading fr fun, and fr knwledge ________.2．Thery is based n practice and ________ serves practice.3．Yu need mney and time; ________，yu need diligence.4．________ parents, nthing can be cmpared with their children’s physical and mental health.
5．We can prtect ur envirnment by creating less waste at the start—________，buying reusable prducts and recycling.6．________ the help yu gave me that summer, my life changed. 【答案】1.as well 2.in turn 3.in additin 4.As fr 5.fr instance 6.Because f
Ⅲ.完成句子1．All theries are frm practice and ________________. 所有的理论都来源于实践，并反过来为实践服务。【答案】in turn serve practice2．____________________________ dismiss yu.我们只好辞退你，别无其他办法。【答案】We had n alternative but t
3．Nt nly ________________，but als he is clever. 他不仅学习刻苦，而且还很聪明。【答案】des he study hard4．My cffee is ________________. 我的咖啡热得没法喝。【答案】t ht t drink
5．He desired that his bk be read by ______________. 他希望有尽可能多的人读他的书。【答案】as many peple as pssible
如何写表达观点的文章动笔前，你的大体构思：_______________________________________________
【引人入胜的开头句】Peple take different views n this questin.人们对这个问题的看法各不相同。In my pinin, it is wrng t…在我看来……是错误的。
I dn’t think it is a very gd way t…我认为这不是一个很好的方法。I’m writing t persuade yu t quit/give up…我写信是劝你放弃……
【精彩纷呈的篇中句】Here are my reasns. First f all, I think it wuld be better if…我的理由如下。首先，我认为如果……会更好。The reasn fr…is that… ……的原因是……Hwever, sme f them hld a different view/hld the ppsite pinin. 然而，有些人持相反的观点。If I were yu, I wuld…如果我是你，我会……N ne can ignre the fact that…没有人能忽视……
【回味无穷的结尾句】In shrt…/In cnclusin…总之……All things cnsidered…从各方面看来……
As far as I’m cncerned，…我认为……Frm what has been discussed abve…通过以上讨论……
【写作任务】关于有机农业和化学农业，你们班举行了一场辩论。请结合你们的讨论结果，写一篇支持有机农业的英语作文，词数不低于80。
注意要点： 1．化学农业的危害； 2．有机农业的优点； 3．讨论的结果和大家的期待； 4．发表自己的观点。
【遣词造句】Ⅰ.用本单元所学单词或短语填空1．________adj.化学的 n.化学制品2．________n.营养3．________adj.营养丰富的4．________n.化肥5．________有机农业6．________导致
【答案】1.chemical 2.nutritin 3.nutritius4．fertiliser 5.rganic agriculture 6.lead t
Ⅱ.本单元语块、语法运用1．完成句子(1)就现代农业的发展而言，化学农业和有机农业是两个关键词。____________ the develpment f mdern agriculture, chemical agriculture and ______________ are tw key wrds.【答案】In terms f; rganic agriculture
(2)关于化学农业和有机农业有各种观点。There are ________________ chemical agriculture and rganic agriculture.【答案】varius pinins abut
(3)毫无疑问，残留在作物内部的化学物质会导致癌症或其他疾病。______________ that the chemicals staying inside the crps ______________ r ther illnesses.【答案】There is n dubt; can lead t cancer
(4)此外，这些蔬菜长得很快，几乎没有营养。Besides, the vegetables grw ________________.【答案】s fast that they cntain little nutritin(5)第二，有机农产品简单地使用天然肥料，使蔬菜和水果既美味又有营养。Secnd, rganic prduce simply uses natural fertilisers, and ________________.【答案】makes vegetables and fruit tasty and nutritius
2．句式升级(6)将句(1)(2)合并为含有定语从句的句子【答案】In terms f the develpment f mdern agriculture, chemical agriculture and rganic agriculture are tw key wrds, abut which there are varius pinins.(7)将句(5)升级为含有现在分词短语的句子【答案】Secnd, rganic prduce simply uses natural fertilisers, making vegetables and fruit tasty and nutritius.
【连句成篇】________________________________________________________________________________________________________________________________________________
【答案】One pssible versin：In terms f the develpment f mdern agriculture, chemical agriculture and rganic agriculture are tw key wrds, abut which there are varius pinins.
Chemical agriculture has many disadvantages. There is n dubt that the chemicals staying inside the crps can lead t cancer r ther illnesses. Besides, the vegetables grw s fast that they cntain little nutritin. Organic fds are becming increasingly ppular with custmers. The first reasn is that peple attach great imprtance t health. Secnd, rganic prduce simply uses natural fertilisers, making vegetables and fruit tasty and nutritius. S it is wiser t chse rganic fd.
假如你们学校的“英语之声”广播站正在征集有关“传统农业与现代农业的利与弊”的文章，将在本周五下午的“英语天地”栏目播出，请你结合以下表格所提供的信息用英语写一篇新闻稿，介绍一下你所了解的中国传统农业与现代农业的不同之处。词数80左右。
【答案】One pssible versin：With the develpment f sciety, agriculture has als changed a lt in many aspects. First f all, nwadays mst farmers grw crps with the help f mdern machines instead f planting crps with their hands. As a result, mdern farmers n lnger need t wrk s hard as befre. And the utput and wrking efficiency are als imprved greatly, which cntributes a lt t scial-ecnmic develpment.
But mdern agriculture als has harmful effect n ur sciety. Fr example, the fertilisers and pesticides used in mdern agriculture have destryed the envirnment badly, while traditinal agriculture des nt cause such kind f prblem at all.
Ⅰ.TranslatinTry t translate and remember the fllwing useful expressins：1．In my eyes/pinin/view…【答案】在我看来/我认为……2．I’d rather…【答案】我宁愿……
¤SPEAKING(Sharing yur pinins)
3．Withut a dubt…【答案】毫无疑问……4．It’s a pity that…【答案】很遗憾……5．I think/guess/believe…【答案】我认为……6．The advantages are…【答案】优点是……
7．I’d prefer…because…【答案】我宁愿…… 因为……8．I agree/disagree…【答案】我同意/不同意……9．I think s.【答案】我想是的。10．I have a feeling that…【答案】我有一种感觉……
11．My impressin is that…【答案】我的印象是……12．My view/pinin/belief is that…【答案】我的观点是……
Ⅱ.WritingUse the abve expressins t talk abut the advantages and disadvantages f rganic farming and chemical farming. Yu have t finish it with at least 60 wrds.______________________________________________________________________________________________
【答案】One pssible versin：Gina：In my pinin, rganic farming is gd t ur health. And chemical farming has many disadvantages. S, I think we shuld say n t chemical farming.Lisa：I dn’t agree with yu. Althugh chemical farming will d harm t us, we can’t feed s many peple in the wrld withut chemical farming. They serve the high demand fr fd arund the wrld.
Tm：The advantages f rganic farming are green and healthy and we can live withut disease. S, I’d prefer rganic fd.Frank：It’s a pity that chemical farming brught us disadvantages but it als helped us human beings a lt. I believe we can find a better way t prduce rich sil and als we can find a way t keep peple and the envirnment as healthy as pssible.Ted：I can’t agree mre.
1．得到广泛使用____________________2．随着时间的推移________________3．例如________________4．此外________________5．相应地；转而；依次，轮流________________6．make them ill________________7．因为________________
be in widespread use
fr example
in additin
8．as fr chemical fertilisers________________9．营养足； 富有营养________________10．have less flavur as well________________11．作为一种选择________________12．转向________________13．keep their sil rich and free f disease_________________________14．例如________________
be rich in nutritin
as an alternative
switch/turn t
保持土壤肥沃和免受病害
fr instance
15．different depths f sil________________16．put dwn deep rts________________17．keep them frm ding s________________18．满足那样的需求________________19．keep peple and the envirnment as healthy as pssible_______________________________20．集中(注意力、精力等)于…；对(某事或做某事)予以注意________________
meet that need
让人们和环境尽可能地保持健康
1．Fr example, pesticides can damage the land by _______________(不仅杀死有害的细菌和昆虫), __________(还可以杀死有益的昆虫)．(nt nly…but als…)【答案】killing nt nly harmful bacteria and insects; but als helpful nes
2．As fr chemical fertilisers, crps grwn with them usually ______________________________________(生长得太快而不含丰富的营养)．(t…t…)【答案】grw t fast t be rich in nutritin3．Therefre, ____________________________(找到一个合适的解决方案还有很长的路要走) that puts sufficient fd n the dinner table.(there be句型)【答案】there is still a lng way t find a suitable slutin
Ⅰ.阅读课文，判断信息正误( )1.Chemical pesticides and artificial fertilisers can fight crp disease and increase prductin. ( )2.Pesticides can damage the land by nly killing harmful bacteria and insects. ( )3.Chemical fertilisers make crps grw fast t be rich in nutritin.
( )4.Organic farmers keep their sil rich and free f disease thrugh natural means. ( )5.Organic farming serves the high demand fr fd arund the wrld.【答案】1－5 TFFTF
Ⅱ.阅读课文，选择正确选项( )1.Why did many farmers welcme the intrductin f chemical farming?A．They can fight crp disease and increase prductin. B．They harm bth the land and peple’s health. C．They can help prduce rich sil. D．They are nt expensive.
( )2.What cncerns many peple abut the use f pesticides?A．Pesticides can damage the land. B．Chemicals can stay in the sil fr a lng time.C．Pesticides can kill harmful bacteria and insects. D．Chemicals may make peple ill and even cause cancer.
( )3.Why d rganic farmers change the kind f crp grwn in each field every few years?A．It helps put imprtant minerals back int the grund. B．It can avid damage t the envirnment. C．It can help increase utput. D．The writer didn’t tell us.
( )4.Why can’t we stp the use f man-made chemicals in agriculture entirely?A．Organic farming cst us a lt f mney. B．Organic farming can meet peple’s need. C．Chemical farming brught us huge prfit. D．Chemical farming helps serve the need fr fd.
1．in turn相应地；转而；依次；轮流(P55)This affects the crps grwn n the land and, in turn, the animals and humans wh digest them.【翻译】这影响了生长在土地上的作物，进而影响消化它们的动物和人类。
in ne’s turn轮到某人；接着by turns轮流；依次take turns ding/t d…轮流做……It’s ne’s turn t d sth.轮到某人干某事
The girls tk it in turn t wipe dwn the tables after meals.女孩子们饭后轮流擦桌子。During the summer hlidays, the teachers were n duty by turns. 暑假期间，老师们轮流值班。When it is my turn, I realized why the prcess was mving s slw. 当轮到我的时候，我明白进程为什么这么慢了。
[针对练习]单句语法填空(1)The girls called ut their names ________ turn.(2)They tk ________(turn) t care abut their parents.(3)It is my turn ________(clean) the classrm this week.【答案】(1)in (2)turns (3)t clean
完成句子(4)She ________________________________. 她依次向每一个人问同样的问题。【答案】asked everyne the same questin in turn/by turns
2．essential adj.完全必要的； 极其重要的(P55)They may lk beautiful n the utside, but inside there is usually mre water than essential minerals, and they ften have less flavur as well.【翻译】它们可能外表看起来很漂亮，但里面通常有更多的水，而不是重要的矿物质，而且它们的味道通常也更差。
be essential t/fr对……很重要It is essential that…(shuld) d…做……是完全必要的It is essential fr sb.t d…对某人来说做……是完全必要的
It is essential t knw where the prblem lies. 完全有必要知道问题在哪里。Even in small cmpanies, cmputers are an essential tl. 即使在小公司里，计算机也是极为重要的工具。It is essential that we (shuld) deal with the prblem. 我们很有必要处理这个问题。
[针对练习]单句语法填空(1)Sun and water are essential ________ the grwth f crps.(2)It is essential fr us ________(set) ur gal realistically.(3)It is essential that yu ________(learn) Chinese histry.【答案】(1)t/fr (2)t set (3)(shuld)learn
完成句子(4)________________ yu shuld cme hme early.你很有必要早点回家。【答案】It is essential that(5)A rich and varied cultural life ________________.丰富多样的文化生活对这对夫妇而言是至关重要的。【答案】is essential t/fr this cuple
3．alternative n．可供选择的事物adj.可供替代的；非传统的(P55)As an alternative, sme farmers have switched t rganic farming, and many custmers have turned t rganic fd when they shp at the lcal grcery.【翻译】作为另一种选择，一些农民转向有机农业，许多顾客在当地杂货店购物时转向有机食品。
(1)have n alternative/chice but t d sth.别无选择只好做某事have the alternative f ding sth.有做……的选择；可以做……there’s n alternative…but t d sth.……别无选择只好做某事an alternative t… ……的替代品(2)alternatively adv.可供选择地
He gave in nly at the last mment because he had n alternative. 他只是在最后一刻因为没有选择才做了让步。The nly alternative t being taken prisner was t die fighting.除了当俘虏之外，唯一的选择就是奋战至死了。If he wants t g t Hng Kng tnight, he has n alternative but t g by air. 如果他今晚想去香港，除了坐飞机外别无选择。
【特别提醒】“别无选择只好做……”的其他表达形式还有：have n chice but t d sth.; can’t d sth. but d sth.; can d nthing but d sth.等。在这些结构中若but之前出现实义动词d的某种形式，but之后要用省略t的不定式，否则，but之后的t不能省略。
[针对练习]单句语法填空(1)I had n alternative but ________(accept) the ffer.(2)We culd walk r ________(alternative) we culd g in Ted’s car.(3)If yu dn’t like the schl lunch, yu have the alternative f ________(bring) yur wn.【答案】(1)t accept (2)alternatively (3)bringing
完成句子(4)Finding himself under fire frm all quarters, he _________.在这四面楚歌的情况下，他除了放弃他的计划没有别的选择。【答案】had n alternative but t abandn his scheme
4．instance n．例子；实例；事例(P56)Fr instance, they may grw crn r wheat in a field ne year, and then grw beans there the next.【翻译】例如，他们可能一年在一块地里种玉米或小麦，然后第二年再改种豌豆。
fr instance例如in the first instance第一，首先
I can cite quite a few instances t illustrate this. 我可以举出好几个例子来说明这件事情。There have been several instances f vilence at the schl. 在学校有几起暴力事例。Mst fd webs, fr instance, cnsist f many weak links rather than a few strng nes. 例如，大多数食物网由许多薄弱链接组成，而不是几个强有力的链接组成。
[针对练习]单句语法填空(1)________ the first instance yur child will be seen by an ear, nse and thrat specialist.(2)There are a number f imprvements, ________ instance, bth muse buttns can nw be used.【答案】(1)In (2)fr
完成句子(3)This prblem seemed t be cmplex ______________，but it culd be easily slved. 这个问题乍一看似乎很复杂，但其实很容易解决。【答案】in the first instance(4)She has mastered several freign languages, ___________，French. 她精通几种语言，例如法语。【答案】fr instance
5．depth n．向下(或向里)的距离；深(度)(P56)Organic farmers als plant diverse crps that use different depths f sil t help keep it rich.【翻译】有机种植的农民也种植不同的农作物，利用不同深度的土壤来保持土壤肥沃。
(1)in depth全面；深入；详细frm the depth f the mind从心底里；真心地at a depth f…在……的深度in the depths f…在……正中；在……深处(2)deep adj.深的 adv.深深地(3)deeply adv.深深地，强烈地(4)deepen v．(使)变深，(使)加深
The smaller lake ranges frm five t furteen feet in depth.小一些的湖深度从5英尺到14英尺不等。I was in the depths f despair when the baby was sick.孩子生病时我陷入了绝望的深渊之中。The submarine lies at a depth f 6,000 feet in the Barents Sea.潜艇位于巴伦支海水下6,000英尺深处。
【语境串联】She belngs t herself. Nbdy can measure the depth f her heart, deep as sea. 她属于自己，没有人能测出她心有多深，深似大海。
[针对练习]单句语法填空(1)Plant the beans ________ a depth f abut six inches.(2)This is a new subject and needs t be explred ________ depth.(3)When her sn gt injured and disabled in the accident, she was in ________ depths f despair.【答案】(1)at (2)in (3)the
完成句子(4)This subject will be cvered ________________ next term.这个话题将在下学期深入讨论。【答案】in depth(5)________________________________________，many things I did with my father still live.在我记忆深处，我与父亲一起做过的很多事仍然存在。【答案】In the depths f my memry
1．(P55)Fr example, pesticides can damage the land by killingnt nly harmful bacteria and insects, but als helpful nes.【翻译】例如，杀虫剂不仅可以杀死有害的细菌和昆虫，还可以杀死有益的昆虫，从而破坏土地。
【句式剖析】句中nt nly…but als…“不仅……而且……”，用作并列连词，相当于“nt just …but als…”。
(1)该结构常用来连接并列成分，如两个主语、谓语、宾语、表语、定语、状语或句子，在意义上强调后者，其中als可以省略。(2)“nt nly…but als…”连接主语时，谓语动词的数遵循就近原则；当nt nly 位于句首连接两个句子时，第一个分句要用部分倒装，第二个分句不倒装。
Shakespeare was nt nly a writer but (als)an actr.莎士比亚不仅是一位剧作家，而且是一位演员。Light and bright clrs make peple nt nly happier but mre active.淡雅和鲜艳的颜色不但使人看了高兴，也会使人更加活泼。The Americans and the British nt nly speak the same language but als share a large number f scial custms.英国人和美国人不但语言相同，而且有很多相同的风俗习惯。
[针对练习]单句语法填空(1)They nt nly brke int his ffice ________als tre up his papers.(2)Nt just the students but als their teacher ________(like) playing ftball.【答案】(1)but (2)likes
完成句子(3)Nt nly ________________ crrectly, but he als speaks it fluently.他不仅能准确地说英语，而且说得很流利。【答案】can he speak English(4)______________ has saved the bys frm the fire.不仅是你而且还有他从火中救出了那些男孩。【答案】Nt nly yu but (als)he
2．(P55)As fr chemical fertilisers, crps grwn with them usually grw t fast t be rich in nutritin.【翻译】至于化肥，用它们种植的作物通常生长得太快，而不含丰富的营养。【句式剖析】句中t…t…意为“太……而不能……”，表示否定含义。
(1)t＋adj.＋t d sth. 其中的形容词为表示情感、心情或倾向等主语态度的词，常见的有anxius, eager, glad, happy, pleased, ready, willing等，表示肯定意义“非常/很……干某事”(2)nt/never t…t d sth. 并不太……做某事(3)nly t…t d sth. 非常……做某事(4)can’t/can never…t…再……也不过分
He is t shy t speak t her. 他太害羞，不敢同她讲话。It’s t cheap t be gd. 这东西太便宜，好不了(即便宜无好货)。He is t yung t knw right frm wrng. 他太小，还分不清是非。
[针对练习]单句语法填空(1)Yu can’t be t careful ________(d) yur hmewrk.【答案】t d
完成句子/一句多译(2)Never ________________.活到老，学到老。【答案】t ld t learn(3)He is ________________.他总是乐于助人。【答案】t ready t help thers
(4)当她听到这则消息时激动得说不出话来。She was ________________ she culdn’t say a wrd when she heard the news. ＝She was ________________ when she heard the news. 【答案】s excited that; t excited t say a wrd
Ⅰ.配对练习请从后面的七个选项中选出最恰当的一个补全句子。1．Over time, hwever, ________ is that their lng-term use can smetimes harm bth the land and peple’s health.2．This affects the crps grwn n the land and, in turn, the animals and humans ________.
3．________ these chemicals may make them ill and even cause cancer.4．________ is because they put imprtant minerals back int the grund, making it ready fr the next batch f crps.5．Organic farmers als plant diverse crps ________.
A．Many peple wrry thatB．what sme scientists have fundC．wh digest themD．that puts sufficient fd n the dinner tableE．Why different crps are grwnF．that use different depths f sil t help keep it richG．Whse bk is gd【答案】1－5 BCAEF
Ⅱ.课文语法填空Chemical pesticides and artificial fertilisers have been in widespread use in farming 1.________ the middle f the 20th century, but scientists fund that their lng-term use can smetimes 2.________ (d) harm t bth the land and peple’s health. In mst 3.________(cuntry), sme pesticides like DDT have been prhibited because f the damage 4.________(cause) t peple and the envirnment.
5．________(slve) the prblem, sme farmers have switched t rganic farming. They use natural waste frm animals as fertiliser instead 6.________ artificial fertilizers. By ding s, they make the sil in their fields 7.________(rich) in minerals than befre. Many ther methds are als used t prduce rich sil. Farmers ften change the kind f crp grwn in each field every year. In this way, sme imprtant minerals 8.________(put) back int the grund.
Sme peple wuld prefer t stp the use f man-made chemicals in agriculture 9.________(cmplete), but rganic farming can’t serve the high demand fr fd arund the wrld. S scientists have t find a 10.________(suit) slutin t the prblem.【答案】1.since 2.d 3.cuntries 4.caused5．T slve 6.f 7.richer 8.are put 9.cmpletely10．suitable
Ⅰ.单句语法填空1．He asked each f us ________ turn t describe hw the ɪnternet had affected ur lives. 2．If he takes n this wrk, he will have n alternative but ________(meet) an even greater challenge.3．What’s the ________(deep) f the lake?4．________ nly is she pretty but als kind-hearted.
5．Smetimes, I was t weak ________(g) t schl s my educatin suffered.6．There ________(be) tw thusand students in ur schl. 7．Sme fds ________(digest) mre easily than thers.8．She is an ________(essential) selfish persn.9．There are jbs mre dangerus than truck driving; ________ instance, training lins.
10．Are yu sure yu ________(entire) understand the imprtance f cmpleting these frms as accurately as pssible?【答案】1.in 2.t meet 3.depth 4.Nt 5.t g6．are 7.are digested 8.essentially 9.fr 10.entirely
Ⅱ.短语填空in additin, in turn, because f, as fr, as well, fr instance1．I’ll d sme reading fr fun, and fr knwledge ________.2．Thery is based n practice and ________ serves practice.3．Yu need mney and time; ________，yu need diligence.4．________ parents, nthing can be cmpared with their children’s physical and mental health.
5．We can prtect ur envirnment by creating less waste at the start—________，buying reusable prducts and recycling.6．________ the help yu gave me that summer, my life changed. 【答案】1.as well 2.in turn 3.in additin 4.As fr 5.fr instance 6.Because f
Ⅲ.完成句子1．All theries are frm practice and ________________. 所有的理论都来源于实践，并反过来为实践服务。【答案】in turn serve practice2．____________________________ dismiss yu.我们只好辞退你，别无其他办法。【答案】We had n alternative but t
3．Nt nly ________________，but als he is clever. 他不仅学习刻苦，而且还很聪明。【答案】des he study hard4．My cffee is ________________. 我的咖啡热得没法喝。【答案】t ht t drink
5．He desired that his bk be read by ______________. 他希望有尽可能多的人读他的书。【答案】as many peple as pssible
如何写表达观点的文章动笔前，你的大体构思：_______________________________________________
【引人入胜的开头句】Peple take different views n this questin.人们对这个问题的看法各不相同。In my pinin, it is wrng t…在我看来……是错误的。
I dn’t think it is a very gd way t…我认为这不是一个很好的方法。I’m writing t persuade yu t quit/give up…我写信是劝你放弃……
【精彩纷呈的篇中句】Here are my reasns. First f all, I think it wuld be better if…我的理由如下。首先，我认为如果……会更好。The reasn fr…is that… ……的原因是……Hwever, sme f them hld a different view/hld the ppsite pinin. 然而，有些人持相反的观点。If I were yu, I wuld…如果我是你，我会……N ne can ignre the fact that…没有人能忽视……
【回味无穷的结尾句】In shrt…/In cnclusin…总之……All things cnsidered…从各方面看来……
As far as I’m cncerned，…我认为……Frm what has been discussed abve…通过以上讨论……
【写作任务】关于有机农业和化学农业，你们班举行了一场辩论。请结合你们的讨论结果，写一篇支持有机农业的英语作文，词数不低于80。
注意要点： 1．化学农业的危害； 2．有机农业的优点； 3．讨论的结果和大家的期待； 4．发表自己的观点。
【遣词造句】Ⅰ.用本单元所学单词或短语填空1．________adj.化学的 n.化学制品2．________n.营养3．________adj.营养丰富的4．________n.化肥5．________有机农业6．________导致
【答案】1.chemical 2.nutritin 3.nutritius4．fertiliser 5.rganic agriculture 6.lead t
Ⅱ.本单元语块、语法运用1．完成句子(1)就现代农业的发展而言，化学农业和有机农业是两个关键词。____________ the develpment f mdern agriculture, chemical agriculture and ______________ are tw key wrds.【答案】In terms f; rganic agriculture
(2)关于化学农业和有机农业有各种观点。There are ________________ chemical agriculture and rganic agriculture.【答案】varius pinins abut
(3)毫无疑问，残留在作物内部的化学物质会导致癌症或其他疾病。______________ that the chemicals staying inside the crps ______________ r ther illnesses.【答案】There is n dubt; can lead t cancer
(4)此外，这些蔬菜长得很快，几乎没有营养。Besides, the vegetables grw ________________.【答案】s fast that they cntain little nutritin(5)第二，有机农产品简单地使用天然肥料，使蔬菜和水果既美味又有营养。Secnd, rganic prduce simply uses natural fertilisers, and ________________.【答案】makes vegetables and fruit tasty and nutritius
2．句式升级(6)将句(1)(2)合并为含有定语从句的句子【答案】In terms f the develpment f mdern agriculture, chemical agriculture and rganic agriculture are tw key wrds, abut which there are varius pinins.(7)将句(5)升级为含有现在分词短语的句子【答案】Secnd, rganic prduce simply uses natural fertilisers, making vegetables and fruit tasty and nutritius.
【连句成篇】________________________________________________________________________________________________________________________________________________
【答案】One pssible versin：In terms f the develpment f mdern agriculture, chemical agriculture and rganic agriculture are tw key wrds, abut which there are varius pinins.
Chemical agriculture has many disadvantages. There is n dubt that the chemicals staying inside the crps can lead t cancer r ther illnesses. Besides, the vegetables grw s fast that they cntain little nutritin. Organic fds are becming increasingly ppular with custmers. The first reasn is that peple attach great imprtance t health. Secnd, rganic prduce simply uses natural fertilisers, making vegetables and fruit tasty and nutritius. S it is wiser t chse rganic fd.
假如你们学校的“英语之声”广播站正在征集有关“传统农业与现代农业的利与弊”的文章，将在本周五下午的“英语天地”栏目播出，请你结合以下表格所提供的信息用英语写一篇新闻稿，介绍一下你所了解的中国传统农业与现代农业的不同之处。词数80左右。
【答案】One pssible versin：With the develpment f sciety, agriculture has als changed a lt in many aspects. First f all, nwadays mst farmers grw crps with the help f mdern machines instead f planting crps with their hands. As a result, mdern farmers n lnger need t wrk s hard as befre. And the utput and wrking efficiency are als imprved greatly, which cntributes a lt t scial-ecnmic develpment.
But mdern agriculture als has harmful effect n ur sciety. Fr example, the fertilisers and pesticides used in mdern agriculture have destryed the envirnment badly, while traditinal agriculture des nt cause such kind f prblem at all.
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