英语Unit 5 A delicate world精品学案

这是一份英语Unit 5 A delicate world精品学案，共14页。学案主要包含了词汇清单，知识点精讲，句式清单，语法清单等内容，欢迎下载使用。

一、词汇清单
二、知识点精讲
知识点1 appetite n．胃口，食欲；强烈欲望
【教材原句】 Unfrtunately, the cats subsequently develped an appetite fr the birds, t.不幸的是，猫后来也对鸟类产生了食欲。(教材P50)
【拓展】
(1) develp an appetite fr 对……产生食欲
have an appetite fr 对……有兴趣/欲望
have n appetite fr 对……没有兴趣/欲望
lss f appetite 食欲不振
spil ne’s appetite 影响胃口
(2)appetising adj. 开胃的；引起食欲的
【写作佳句】Besides, it is well knwn that giant pandas are quite particular abut their fd and have a gd appetite. 此外，众所周知，大熊猫对食物非常挑剔，而且食量很大。
【经典练】单句语法填空
①Warm clurs like yellw make fd appear mre appetizing (appetite)，while cld clurs make us feel less hungry.
②Mr Black has develped an appetite fr Chinese fd.
③T much anxiety can result in sleeplessness and lss (lse) f appetite.
补全句子
④Dn’t eat that cake nw; yu’ll spil yur appetite.
现在别吃那块蛋糕；你会倒胃口的。
知识点2 decrease v．(使)变小，(使)减少 n．减少，降低；减少量
【教材原句】 But althugh the virus caused the rabbit ppulatin t decrease frm 130, 000 t arund 10, 000，it als meant less fd fr the cats. 然而，虽然病毒使得兔子的数量从130 000只减少到约10 000只，但这也意味着猫的食物变少了。(教材P51)
【拓展】
(1)decrease by 减少了
decrease (frm...) t (从……)减少到
decrease in 在某方面下降
(2)n the decrease 在下降；在减少
a decrease in sth 某方面的减少/下。
【写作佳句】Lack f sufficient sleep can lead t decreased cncentratin, memry prblems, and even impact academic perfrmance. 睡眠不足会导致注意力下降、记忆力减退，甚至影响学业表现。
【经典练】单句语法填空
①The number f independent firms decreased frm 198 t 96.
②This species f bird is decreasing in number every year.
③The price f wheat decreased by 15% last year.
翻译句子
④随着交通状况的改善，交通事故的数量在减少。
With the traffic imprving, the number f accidents is n the decrease.
知识点3 trap n．夹子；陷阱；圈套；困境 v．储存；留存；使困住；使陷入圈套；使陷入困境
【教材原句】 In the 1980s，traps and dgs were used t catch the cats.20世纪80年代，人们利用捕猎夹和狗来抓猫。(教材P51)
【拓展】
(1)set a trap fr 给……设圈套
fall int a trap 落入圈套/陷阱
(2)be trapped in 困在……中；陷在……中
trap sb int (ding) sth 诱使某人做某事
【写作佳句】I hpe that all students can take my advice seriusly and avid falling int the trap f nline gaming addictin. 我希望所有学生都能认真对待我的建议，避免陷入网络游戏成瘾的泥潭。
【经典练】单句语法填空
①If yu chse this way, yu’re likely t fall int a trap.
②When travelling they were trapped in the muntain, waiting t be rescued.
③The shpkeeper trapped me int buying a lt f prducts that I didn’t need.
[链接写作] 补全句子
④She set a trap fr him and he walked straight int it.
她给他设下圈套，他就径直钻了进去。
知识点4 we v．应该做；对……负有……的义务；欠(账、钱、人情等)；归功于……；应感谢
【教材原句】 we humans we it t the island t give it a happy ending. ……但我们人类有义务给这个岛一个幸福的结局。(教材P51)
【拓展】
(1)we sb sth＝we sth t sb 欠某人某物
把……归功于……
we it t sb that... 多亏某人……
(2)wing t 因为；由于
【写作佳句】Gratefully, I we this success t Jy, withut whm l culdn’t have made such remarkable prgress. 我十分感激，这份成功要归功于Jy，没有她/他，我不可能取得如此显著的进步。
【经典练】单句语法填空
①He wes his gd health t his healthy lifestyle.
②Mary will take care f the baby—she wes(we) me a favur.
③He wes it t his father that he has been s successful.
词汇/句式升级
④Thanks t his ptimism and perseverance, he was admitted int Peking University.
→It was wing t his ptimism and perseverance that he was admitted int Peking University.(强调句)
知识点5 cmparisn n．比较
【教材原句】 Data, examples and cmparisns are then used t supprt the main ideas. Bth verbal and visual infrmatin is used in rder t maintain the audience’s interest. 随后运用数据、案例和对比分析来支撑核心观点，同时结合口头讲解与视觉呈现，以保持听众的关注度。(教材P56
【拓展】
(1)in cmparisn t/with 与……相比
by cmparisn (with...) (和……)相比之下
make a cmparisn/make cmparisns 进行比较
(2)cmpare v. 比较；对比；把……比作
把……与……相比
cmpare with... 与……类似；比得上
把……比作……
cmpared t/with... 与……相比(作状语)
cmpare ntes with sb 与某人交换意见
beynd/withut cmpare 无与伦比；举世无双
【写作佳句】Fr instance, in cmparisn with traditinal bk frms, audibk ppularized by the Internet are easier t carry, rich in cntent and real-time updated. 例如，与传统纸质书相比，网络普及的有声读物更便于携带、内容更丰富，且能实时更新。
【经典练】单句语法填空
①A teacher is ften cmpared t a candle. That’s because their devtin t wrk is beynd/withut cmpare.
②They made a cmparisn f different cuntries’ eating habits. Cmpared with the French, the British eat far less fish. (cmpare)
[链接写作]句式升级
③If yu cmpare the task with the previus ne, yu will find it mre challenging.
→Cmpare the task with the previus ne, and yu will find it mre challenging.
→Cmparing the task with the previus ne, yu will find it mre challenging.
→In cmparisn with/Cmpared t/with the previus ne, the task is mre challenging.
知识点6 n behalf f代表
【教材原句】 It is my great pleasure t give a lecture here n behalf f the Be at One with Nature Assciatin. 我很开心能代表人与自然和谐相处协会在这里发表演讲。 (教材P56)
【拓展】
n behalf f＝n sb’s behalf 代表某人，因为某人，为了某人
stand fr 代表；(某个字母)是……的缩写；支持；容忍
in the name f 代表；以……的名义；在……名下
【写作佳句】Nw, n behalf f all the students, I suggest that we have three t fur PE classes a week. 在此，我谨代表全体同学提议，每周安排三至四节体育课。
【经典练】单句语法填空
①On behalf f the staff, I wish t extend ur warmest welcme t yu.
②Many Chinese peple believe that red stands fr gd luck.
③We’re very glad t greet yu in the name f the Chinese peple.
[链接写作]一句多译
我很高兴代表我的同学们在这里讲话。
④I am very happy t speak here n behalf f my classmates.
⑤I am very happy t speak here standing fr my classmates.
⑥I am very happy t speak here in the name f my classmates.
知识点7 cexist v．共存，共处
【教材原句】 Althugh endangered elsewhere in China due t the invasin f freign species, the bees f Shennngjia have cexisted with the lcal peple fr centuries. 虽然在中国的其他地区，由于外来物种入侵，这种蜜蜂濒临灭绝，但是神农架的人们和这种蜜蜂已经共存了几个世纪。(教材P57)
【拓展】
cexist with 和……共存；与……共处
cexistence n. 共存，共处
【经典练】单句语法填空
①Hw I hpe all the cuntries in the wrld can cexist with each ther peacefully.
②After the war, the tw cuntries enjyed a perid f peaceful cexistence (cexist)．
[链接写作]补全句子
补全句子
③Nw it is generally accepted that the cuntries with different scial systems can cexist with each ther peacefully.
现在人们普遍认为，不同社会制度的国家可以和平共处。
三、句式清单
句式1 nr引导的倒装句型
【教材原句】 Nr wuld they fail t imagine hw its native inhabitants，including ryal penguins，king penguins，and elephant seals，existed in perfect harmny with their natural habitat fr thusands f years.他们也不难想象出，数千年来，包括帝企鹅、王企鹅和象海豹在内的当地动物是如何与其自然栖息地完美地和谐共存的。(教材P50)
句式分析： 本句是一个部分倒装句，nr置于句首，句子用部分倒装，因此wuld提前，表示“……也不”。
【拓展】
(1)“nr/neither＋助动词/be动词/情态动词＋主语”构成倒装句型，意为“……也不这样”，表示某人或某物也有前面说过的情况(否定情况)。
(2)“s＋助动词/be动词/情态动词＋主语”，构成倒装句型，意为“……也是如此”，表示某人或某物也有前面说过的情况(肯定情况)。
(3)“s＋主语＋助动词/be动词/情态动词”，表示说话人同意对方的观点或对前文内容加以强调或肯定，意为“……的确如此”。
(4)如果前面句子的谓语既有肯定又有否定，或者形式不同，就用句型S it is/was with...或It is/was the same with...。
【经典练】补全句子
①Yu can’t cancel the cntract, nr/neither can I(我也不能)．
②He is very clever but he desn’t wrk hard; it is the same with/s it is with his sister(他姐姐也是这样)．
[链接写作]句型转换
③Tm can speak French and his brther can speak, t.
→Tm can speak French and s can his brther.
④If yu dn’t attend the meeting, I wn’t, either.
→If yu dn’t attend the meeting, neither/nr will I.
⑤They didn’t finish the task successfully and were sclded by the bss.S it was with us.
→They didn’t finish the task successfully and were sclded by the bss. It was the same with us.
四、语法清单
it 作形式宾语
【感知·语法规律】
1. I dn’t feel it difficult t understand the passage. 我不觉得理解这篇文章有什么困难。
2. Our teacher thinks it n gd learning withut practice. 我们老师认为光学习不实践是没有用的。
3. He hasn’t made it clear when he is cming back. 他还没说清楚什么时候回来。
【精讲·语法知识】
it作为形式宾语的用法：当不定式、动名词或从句在某个句子中作宾语时，为了保持句子的结构平衡，常用it作为形式宾语，而将真正的宾语放到句子后部去。
用法
1．it作形式宾语代替动词不定式(短语)
(1)think/find/feel/cnsider/make/regard...＋it＋形容词＋不定式(短语)
I find it pleasant t wrk with him. (it作形式宾语，代替不定式短语t wrk with him)
我觉得和他一起工作很愉快。
They felt it difficult t finish the wrk in such a shrt time. (it作形式宾语，代替不定式短语t finish the wrk in such a shrt time)
他们认为在这么短的时间内完成这项工作是困难的。
(2)think/find/feel/cnsider/make/regard...＋it＋名词＋不定式(短语)
She thinks it her duty t help us. (it作形式宾语，代替不定式短语t help us)
她觉得帮助我们是她的责任。
I think it my hnr t be invited t speak here. (it作形式宾语，代替不定式短语t be invited t speak here)
我觉得应邀在这里演讲是我的荣幸。
2．it作形式宾语代替动名词(短语)
动词＋it＋n gd/n use/useless/a waste f time/wrth ne’s while等＋ding...
I’ll make it wrth yur while telling me abut his secret.
告诉我他的秘密，我会酬谢你的。
He thught it n use trying t cnvince them.
他认为企图说服他们没有用。
3．it作形式宾语代替从句
(1)动词＋it＋介词短语＋that从句
I tk it fr granted that they were nt cming.
我想他们准是不会来了。
(2)动词＋it＋名词＋that从句
We all thught it a pity that the cnference shuld have been canceled.
会议取消了我们都感到很遗憾。
(3)动词＋it＋形容词＋that从句
I find it necessary that we shuld spend mre time practising spken English.
我发现我们有必要花更多时间练习英语口语。
(4)动词appreciate/hate/lve/like/dislike＋it＋if/when引导的宾语从句
He will appreciate it if they invite him.
如果他们邀请他，他将非常感激。
She hates it when he bragged that he was the mst imprtant.
她讨厌他吹嘘自己最重要。
特殊情况
1) 动词+it+that从句，常见于 take，have，put等动词之后。
例如: I take it that he will finish the task by himself. (我认为他能自己完成这项任务。)
2) 动词+it+when/if从句，常见于 appreciate，enjy, like，prefer等动词之后。
例如: We really appreciate it if yu culd d us a favur. (如果您能帮助我们我们会很感激。)
3) 动词 +it + 介词短语 + that 从句，常见于 we it t sb, take it fr granted 等结构中。
例如: We we it t yu that we are still alive. (多亏有你，我们现在才仍然活着。)
4) 动词+介词 +it+that 从句，常见于 lk t，depend n，insist n，stick t，answer fr 等结构中。
例如: She insisted n it that she was inncent. (她坚持说自己是无辜的。)
5)动词+it+过去分词+从句。
例如: He made it knwn t everyne that he was right. (他让每个人都明白他是对的。)
【经典练】 补全句子
①汤姆发现学好数学很难。
Tm fund ________________ math well.
②我认为参加北京冬奥会开幕式是我的荣幸。
I think ________________ attend the pening ceremny f Beijing Winter Olympics.
③我发现建议他戒烟是没有用处的。
I fund ________________ him t give up smking.
④他认为只阅读而不理解没有益处。
He thught ________________ withut understanding.
⑤我认为有必要学习另一门语言。
I think ____________________ a secnd language.
⑥你可以指望他开会不会迟到。
Yu can ____________________ he wn’t be late fr the meeting.
⑦如果你能告诉我更多细节，我将不胜感激。
____________________ yu culd tell me mre details.
⑧他们的老师认为只学习不实践没好处。
Their teacher thinks ____________________ withut practice.
Answers:①it difficult t learn ②it an hnur t
③it n use/useless advising ④it n gd reading
⑤it necessary t learn ⑥rely n it that
⑦I wuld appreciate it if ⑧it n gd learning
三、写作清单
【点拨·写作技巧】
演讲稿属于应用文的一种。写作时要首先点明演讲的主题和目的，以引起听众的注意；主体部分可以通过事例、细节描述等有步骤地展开对主题的介绍；结尾总结时，要对主题进行概括、强调。
本单元的写作项目是撰写一份关于“世界遗产名录”中的某一世界遗产介绍的演讲稿。属于应用文写作范畴。此类演讲稿主要介绍这一世界遗产的基本信息，包括其特点、特色及其入选“世界遗产名录”的原因等。具体写作步骤归纳如下：
【积累·写作素材】
1. 常用短语
2. 常用语句
(1) Gd mrning, everyne. It is my great pleasure t give a lecture n behalf f...大家早上好！我很高兴代表……做这次演讲。
(2) It is a great hnr fr me t give my speech here.我很荣幸在这里发表演讲。
(3) Welcme t ur schl. Nw please allw me t intrduce yu t sme f ur teachers.欢迎来到我们学校。现在请允许我把你介绍给我们的一些老师。
(4) The tpic f my speech tday is “Thughts n envirnment”.我今天演讲的题目是“对环境的思考”。
(5) Welcme t this year’s English speech cmpetitin.欢迎参加今年的英语演讲比赛。
【示例·分步写作】
你校英文报正在进行主题为“Wrld Cultural Heritage in China”的征文活动，请你写一篇演讲稿参赛，介绍一项中国的世界文化遗产（如长城、故宫、莫高窟、兵马俑、西湖……）。内容包括：
1. 基本情况；
2. 文化特色。
注意：1. 词数80 左右；
2. 可以适当增加细节，以使行文连贯。
Gd mrning, everyne. It’s a great hnr fr me t address a speech here.







That’s all. Thank yu.
第一步：审题谋篇
第二步：要点翻译
1. 莫高窟位于甘肃丝绸之路上一个重要的地方
The Mga Grttes was lcated at a strategic pint alng the Silk Rad in Gansu Prvince.
2. 它以延续千年的佛教雕像和壁画闻名。
The Mga Grttes are famus fr their statues and wall paintings, spanning 1,000 years f Buddhist art.
3. 这些石窟共有492座佛寺，全部刻在岩壁上，装饰着4.5万平方米的壁画和2,000多尊彩色雕像，是中国古代艺术的珍宝。(carve)
The grttes, a cllectin f 492 Buddhist temples carved int the rck walls, are decrated with 45,000 square meters f paintings and mre than 2,000 clred statues f ancient Chinese Art.
4. 壁画色彩明艳，见证了隋、唐、宋三朝的古老文明；彩塑则以佛教为主题，大小各异，小至几厘米，大至33米，展现了古代工匠非凡的想象力。(range)
The paintings shine with bright clrs, witnessing the civilizatins f ancient China during the Sui, Tang and Sng dynasties. The clred statues with Buddhist themes differ in size, ranging frm a few centimeters t 33 meters high, shwcasing the remarkable imaginatin f their makers.
5. 所有这些瑰宝既讲述着佛教故事，又记录了中国古代艺术、政治、经济及中外文化交流，为后世提供了鲜活的鉴赏与研究素材。
All these treasures tell Buddhist stries, witness the ancient Chinese art, plitics, ecnmy as well as cultural exchanges between China and the wrld and are vivid materials fr future generatins t appreciate and study.
第三步：词句升级
用过去分词结构合并句子1和2
Lcated at a strategic pint alng the Silk Rad in Gansu Prvince, the Mga Grttes are famus fr their statues and wall paintings, spanning 1,000 years f Buddhist art.
第四步：连句成篇
Gd mrning, everyne. It’s a great hnr fr me t address a speech here.
Situated at a strategic pint alng the Silk Rad in Gansu Prvince, the Mga Grttes are famus fr their statues and wall paintings, spanning 1,000 years f Buddhist art.
The grttes, a cllectin f 492 Buddhist temples carved int the rck walls, are decrated with 45,000 square meters f paintings and mre than 2,000 clred statues f ancient Chinese Art. The paintings shw beautifully-painted designs in bright emerald-green and amber-range, witnessing the civilizatins f ancient China during the Sui, Tang and Sng dynasties. The clred statues with Buddhist themes differ in size, ranging frm a few centimeters t 33 meters high, embdying the remarkable imaginatin f their makers.
All these treasures tell Buddhist stries, witness the ancient Chinese art, plitics, ecnmy as well as cultural exchanges between China and the wrld and are vivid materials fr future generatins t appreciate and study.
That’s all. Thank yu.
单词
1. halfway adj. 中间的，半途的
2. dramatically adv. 显著地
3. heritage n. 遗产；传统
4. habitat n. 栖息地
5. subsequently adv. 后来，随后
6. appetite n. 胃口，食欲
7. multiply v. （使）大大增加，（使）倍增
8. ersin n. 侵蚀
9. chas n. 大混乱；紊乱
10. cnservatin n. 保护
11. virus n. 病毒
12. decrease v. （使）变小，（使）减少
13. trap n. 夹子，陷阱
14. departure n. 离开
15. immunity n. 免疫力
16. explde v. 突然增加
17. cllapse v. 倒坍；塌下
18. substantial adj. 大量的，多的
19. incident n. 事件
20. interventin n. 干预，介入
21. we v. 应该做；对……负有……的义务
22. eclgy n. 生态
23. disslve v. （使）溶解
24. nutrient n. 养分，营养物
25. cmparisn n. 比较
26. visual adj. 视觉的
27. sessin n. 一段时间
28. mysterius adj. 神秘的
29. status n. 地位；身份
30. criterin n. 标准，准则
31. prsper v. 兴旺，发达
32. rare adj. 稀有的，罕见的
33. bilgical adj. 生物的，与生物有关的
34. apparently adv. 据说；看来，似乎 57
35. vast adj. 巨大的；广大的
36. altitude n. 海拔（高度）
37. variatin n. 差异；变化
38. thrive v. 茁壮成长
39. endangered adj. 濒临灭绝的
40. elsewhere adv. 在别处
41. invasin n. 涌入
42. cexist v. 共存，共处
43. secure adj. 稳固的；安全的
44. greeting n. 问候，招呼
短语
1. fail t d 未能做到某事
2. in harmny with 与……协调；和……一致
3. develp an appetite fr 以……为食/对……感兴趣
4. be intrduced t 被引入到/被介绍给
5. ut f cntrl 失去控制
6. 将……从……清除
7. mind 考虑到……
8. decrease 从……减少到……
9. in cnsequence/as a cnsequence 因此；结果
10. turn ut 结果是；原来是
11. a substantial number f 大量的
12. nce and fr all 彻底地；最终地
13. every last ne 每一个
14. we it d 应该为……做某事
15. break dwn 使分解；出现故障
16. n behalf f 代表
17. be at ne with 成为一体
18. cexist with 与……共存/共生
19. in return 作为回报；作为回应
20. earn ne’s place 赢得一席之地
21. be renwned fr 以……而闻名
熟词生义
1. sculpt 常见义：v. 雕刻 生义：v. 塑造
2. lse 常见义：adj. 松的 生义：adj. 未被控制的，自由活动的
3. explding 常见义：adj. 爆炸的 生义：adj. 急剧增长的
4. trap 常见义：n. 陷阱 生义：n. 捕猎工具（如捕猫器）
5. brave 常见义：adj. 勇敢的 生义：v. 勇敢面对
6. secure 常见义：adj. 安全的 生义：v. 提供安全环境
句型
1. nr置于句首引起的部分倒装
Nr wuld they fail t imagine hw its native inhabitants, including ryal penguins, king penguins, and elephant seals, existed in perfect harmny with their natural habitat fr thusands f years.
他们也不会想象到，几千年来，这里的土著居民，包括皇家企鹅、帝企鹅和海象，是如何与它们的自然栖息地和谐共存的。
2. 表语从句
The end result was that parakeets, nce large in number and native t the island, died ut in 1891.
最终的结果是，岛上原本数量众多的本土鸟类——长尾鹦鹉，在1891年灭绝了。
3. It/This/That is the first time (that)．..意为“第一次……”，从句要用现在完成时
It is my great pleasure t give a lecture here n behalf f the Be at One with Nature Assciatin.
我很高兴在这里代表大自然协会举办一个讲座。
语法
It 作形式宾语
1. let alne 更不用说
6. rely n vegetatin 依赖植被
2. aruse ne’s interests 引起某人的兴趣
7. be respnsible fr 对……负责
3. play an imprtant part in 起重要作用
8. plant species 植物物种
4. in cnclusin 总之
9. climate change 气候变化
5. accunt fr the reasn 解释原因
10. damage their habitat 破坏它们的栖息地
体裁
演讲稿（介绍世界遗产）
时态
根据提示，时态主要为一般现在时。
框架
第一部分：介绍地理位置
第二部分：介绍具体特色
第三部分：意义或启示