仁爱科普版九年级上册Topic 3 What can we do to protect the environment?优秀课后复习题

这是一份仁爱科普版九年级上册Topic 3 What can we do to protect the environment?优秀课后复习题，文件包含同步练习仁爱版初中英语九年级上册Unit2Topic3SectionC原卷版docx、同步练习仁爱版初中英语九年级上册Unit2Topic3SectionC解析版docx等2份试卷配套教学资源，其中试卷共25页， 欢迎下载使用。

【学习目标】
By the end f the lessn, students shuld be able t:
Wrds and phrases: technlgy, renewable, disadvantage, require, German, wheel,
guide, deep, run ut, surce, wrldwide, prduce…frm…,
nt nly…but als…, t…t…
Sentences: Hwever, nuclear pwer can be very dangerus.
It can nt nly prtect the envirnment but als save energy.
It’s t small t hld many peple.
Grammar: cmpund sentence
Difficult pints：
理解文中出现的被动语态。如:
This renewable energy is used in peple’s everyday lives.
Electric vehicles were develped in the 1990s.
It's t small t hld many peple, but larger mdels will be develped in the near future.
【预习导学】
必备单词和短语
1________________酸雨
2________________adj.原子能的;核动力的
3________________n.沼气
4________________n.技术
5________________n.禾杆，稻草
6________________adj.可更新的,可再生的
7________________n.不利因素;障碍
8________________n.步骤,过程v.加工,处理
9________________v.需要;要求
10________________最知名的
11________________磁悬浮列车
12________________n.德国人;德语
13________________prep.每，每一
14________________n.轮，车轮，轮子
15________________n.向导，导游；指南，手册
16________________n.道路;途径
17________________n.钢，钢铁
18________________n.挥手;海浪v.招手;摆手
19________________adj.深的adv.深深地
20________________用完,耗尽
21________________adv.全世界,世界各地
22________________n.水蒸气,蒸汽;水汽
23.after all________________________
24.reach a tp speed f …____________________
25.run ut____________________
26.remve….frm____________________
答案：
1acid rain酸雨
2nuclearadj.原子能的;核动力的
3bigasn.沼气
4technlgyn.技术
5strawn.禾杆，稻草
6renewableadj.可更新的,可再生的
7disadvantagen.不利因素;障碍
8prcessn.步骤,过程v.加工,处理
9requirev.需要;要求
10best-knwn最知名的
11maglev train磁悬浮列车
12Germann.德国人;德语
13perprep.每，每一
14wheeln.轮，车轮，轮子
15guiden.向导，导游；指南，手册
16pathn.道路;途径
17steeln.钢，钢铁
18waven.挥手;海浪v.招手;摆手
19deepadj.深的adv.深深地
20use up用完,耗尽
21wrldwideadv.全世界,世界各地
22steamn.水蒸气,蒸汽;水汽
23.after all毕竟
24.reach a tp speed f …达到…..最高时速
25.run ut用完，耗尽
26.remve….frm从去除
【探究提升】
Sectin C
表能力，有能力做某事 He can swim very fast.
可能性 Anyne can make mistakes. /My father can be very unreasnable.
1. Nuclear pwer can be very dangerus.
can

2. T slve the energy prblem, peple all ver the wrld are lking fr new ways t prduce pwer.
t= in rder t 为了，引导原因状语从句
all ver the wrld = arund the wrld全世界的
3. Farmers recycle straw, grass and animal waste t make bigas.
recycle v. 回收 = re+ cycle
recycle sth 回收某物 We shuld recycle garbage.
recycled过去式、过去分词
recycling现在分词
拓展 recycle bin 回收站 bicycle 自行车
return 返回
review 复习
recall 回忆，召回
restart 重新开始
4. This renewable energy is used in peple’s everyday lives.
renewable = re +new+able 可再生的 renewable energy可再生能源
拓展: capable 有能力的 suitable 合适的
5. Its key disadvantage is that the prcess requires a lng time (up t 30 days) and the cst is high.
(1) that 引导宾语从句一般可以省略。两个宾语从句并列时，第二个that一般不省略。
She says that her brther will g t see a film, and that he will g shpping als.
(2) up t 多达，达到……I can take up t fur peple in my car.
拓展: up t date 很时髦 up t nw 直到现在
(3) cst 花费 pay / spend/ take
6. Electric vehicles were develped in the 1990s.
(1) electric 指任何电动的或发电的装置，被修饰的物体本身可带电。
electric vehicles 电动车
拓展: electric pian电子琴 electric mtr电动车electric bell电铃
拓展: electricity n. 电力，电流
辨析: electrical 指与电有关的事物，被修饰的词本身并不能带电。
an electrical engineer 电气工程师
(2) be + 动词过去分词：被……
7. In China, the best-knwn maglev train is the German-built ne in Shanghai.
best-knwn最著名的
German-built 德国制造的
8. The train can reach a tp speed f 431 km per hur.
at a speed f 以……的速度
per hur 每小时
9. Maglev trains are very energy-efficient and d nt pllute the air.
and 表示并列关系，动作先后关系 He finished his hmewrk and he began t watch TV.
but, while 表转折关系 He is rich but he seems pr.
r, either…… r…… 表选择关系 Yu can cme here by bus r by taxi.
s, fr 表因果关系 It rains, s I dn’t want t g ut.
10. They will never run ut, s they are called renewable surces.
run ut 用光，耗尽
run ut f 用光…… I have run ut f my mney, can yu lend me 100 Yuan?
acid rain 酸雨
nuclear energy 核能源
energy prblem 能源问题
bigas technlgy 生物气技术
renewable energy 可再生能源
maglev train 磁悬浮列车
wheel nise 车轮噪音
traditinal steel railways 传统铁轨
sea wave 海浪
11. 短语荟萃
【体系构建】
Sectin C
Which energy des peple use nw accrding t the vide?
What's the advantages and disadvantages f
【强化训练】
一、单项选择
1．The energy frm the sun and the wind csts little and will never ________.
A．turn utB．put utC．cut utD．run ut
2．—I think reading is really a gd habit.
—Yes. I think what we have read can ________ ur ways f thinking.
A．influenceB．interviewC．require
3．—Why d yu ________ s much fd?
—I hear there will be a heavy snw. Then we can’t g ut t buy any.
A．streB．leaveC．spreadD．guide
4．After the earthquake in Turkey, many vlunteers went t the street t ________ bttled water and fd t the victims.
A．get utB．hand utC．put utD．run ut
5．After a three-day rest, the travelers ________ again.
A．left utB．ran utC．brught utD．set ut
6．It is reprted that 2023 Asia Triathln Cup Taizhu (泰州铁人三项亚洲杯赛) held in Qinhu Turist Resrt last mnth ________ t be a big success.
A．ran utB．turned utC．carried utD．tried ut
7．—The latest phne ________ s much that I cannt ________ ne.
—Yeah! But we students shuld nt fcus n the demand fr materials.
A．takes; suggestB．csts; affrdC．requires; sell
8．—This term, yu’ve made great ________ in Maths.
—Yes. I’m really thankful t my math teacher. She helped me a lt.
A．prgressB．prcessC．sadness
9．—Mm, hw can I take gd care f these flwers?
—Well, they ________ enugh sunshine and water.
A．includesB．requiresC．blcksD．frms
10．—Hw d yu knw that he is British?
—Oh, cme n. It’s bvius. He has a ________ accent.
A．deepB．hardC．heavyD．dark
11．—D yu think Jhn can win a prize in the Wuhan Marathn?
—Impssible nw. He was ________ t d s, but he has just hurt his leg.
A．advisedB．requiredC．suppsedD．requested
12．My dream is t be a _________, then I can describe things well with a pen.
A．guideB．piltC．wrkerD．writer
13．—What d yu knw abut Fuxian Lake?
—Oh, it is ________ lake in Yunnan Prvince.
A．deepB．deeperC．deepestD．the deepest
14．—China’s high-speed railway _______ is leading the wrld.
—That’s right. It is mving further int the wrld.
A．ppulatinB．envirnmentC．technlgyD．infrmatin
15．The Australians have a clse ________ with the British. Many have British relatives.
A．relatinshipB．standardC．intrductinD．technlgy
二、完形填空
The walls f the Regenerate Lab, a small wrkplace n Hangzhu Rad in Shanghai, are filled with clrful, things. The rm is 16 f all kinds f useless things. Three yung peple have the wrkshp Yu Lei, Yu Weiyi and Yan Xingwang.
Yu Lei cmes frm a city f Inner Mnglia. At schl, Yu Lei tk part in many 17 , but he fund peple threw away useless things after the shws. He thught they shuldn’t d that. Then he started learning frm his father and 18 small things ut f these useless things.
In July 2020, tw years after leaving cllege, tgether with his tw friends, he 19 the Regenerate Lab. There the three men have 20 wrk. Yu Lei wrks n art and makes all kinds f tls. Yan Xingwang makes dlls and Yu Weiyi lks after the 21 part, which can bring plenty f fund (资金) fr their living cst and develpment!
They 22 lts f time creating children’s plays and have created fur plays s far. I 23 things frm bird and flwer markets,” Yu Lei said. Peple f all ages are interested in ur wrk and keep cllecting different kinds f 24 things fr us.
Actually, their small wrkplace is becming ppular 25 n Hangzhu Rad. They surely believe their small wrkplace can turn int a big ne smeday.
16．A．fullB．windC．richD．wise
17．A．theatersB．shwsC．playsD．mvies
18．A．catchingB．creatingC．stealingD．treating
19．A．fundedB．attackedC．attendedD．suggested
20．A．similarB．generalC．difficultD．different
21．A．successB．businessC．inventinD．directin
22．A．spreadB．manageC．wasteD．spend
23．A．watchB．cllectC．pickD．thrw
24．A．pricelessB．hpefulC．uselessD．helpful
25．A．privatelyB．secretlyC．silentlyD．rapidly
三、阅读理解
阅读下面的短文，从每小题所给的A、B、C三个选项中选出最佳选项。
A
Accrding t a reprt by the ISRC in 1997, great changes abut saving the Earth can be made simply by aviding bad habits.
26．The ISRC suggests that great changes can be made simply by ________.
A．shwing lve t natureB．saving mre energyC．aviding bad habits
27．If yu want t be envirnmentally friendly, what shuldn’t yu d?
A．Walk t schl.B．leave the lights n.C．Never use single-use chpsticks.
28．Accrding t the passage, wh is a greener persn?
A．Mary takes a bath everyday.
B．Jhn’s sister likes shpping, she shps at will.
C．Tm helps pick empty bttles int the bttle bank.
29．What can we learn frm the passage?
A．Our lifestyle has changed a lt.
B．It’s ur duty t save the wrld’s resurces.
C．Nwadays peple aren’t wrried abut the envirnment.
30．What’s the purpse f this passage?
A．T ask peple t save water.
B．T prtect animals.
C．T tell peple t live a greener life.
B
April 22nd is Wrld Earth Day—a day t remind peple t prtect the earth. S n that day, ur family held an activity “bttle f trash challenge”. That means the trash needs t be put in a 600ml bttle. We decided t challenge urselves and prduce as little trash as pssible.
My father wrked nline all day, s he didn’t prduce any paper waste except paper napkins (餐巾纸). He made the least trash in ur family.
My mther cked and prduced plenty f kitchen waste, such as vegetable leaves, eggshells and fd bags. What’s wrse, we culdn’t eat up all the fd f the dinner that day. S leftvers culdn’t be avided. It was nt easy fr mm t deal with all the trash, but she fund a way t put it all int the bttle. Hw amazing!
My sister, a 16-year-ld student, was busy preparing fr her exams. She had t use paper t wrk ut math r physics prblems. She used nly ne side f the paper in the past. But that day, she tried t use bth sides f the paper because she realized we were challenging urselves. She did a gd jb!
I was different frm my sister. I lve snacks and drinks. S my trash was almst frm them. I was highly alert that I must prduce less waste. I hardly ever had snacks r drinks. It was t difficult, but I did it!
I’ve learnt a lt frm this activity. I realize that everyne can prduce less trash. We shuld start with small actins t prtect the earth!
31．What activity did the writer’s family hld n April 22nd?
A．A picnic.B．A challenge.C．A trip.
32．Wh made the least rubbish in the family?
A．The writer.B．The writer’s mther.C．The writer’s father.
33．What des the wrd “leftvers” mean in the 3rd paragraph?
A．Fd that hasn’t been eaten up at the end f a meal.
B．Dishes that are cked by Mm.
C．Waste that is prduced in the kitchen.
34．What was the writer’s sister busy ding?
A．Watching TV.B．Playing the pian.C．Preparing fr her exams.
35．Why des the writer write the passage?
A．Because he hpes that we can have less snacks and drinks.
B．Because he hpes that we can use bth sides f the paper.
C．Because he hpes that we can prtect the earth by starting with small actins.
四、短文填空
Every year March 12 is the “Tree Planting Day” in China. Why are trees s imprtant? Trees are ne f the 36 (ld) “citizens (公民)” f ur Earth. They keep ur air clean, reduce nise pllutin and prvide fd and building materials.
Just 37 us, trees change a lt as they grw. At 1 t 3 years ld, yung trees learn hw t prtect themselves. Fr example, many trees grw thrns (刺) t warn animals 38 t g near. Mst yung trees have large, deep green 39 s that they can catch enugh sunlight and change it int their fd and energy. When trees are 4 years ld, they begin t grw very fast and becme strng enugh t 40 (面对) challenges later in life. At the age f 15, trees becme yung adults. They grw mre slwly and begin t prduce flwers and fruit.
It is nt until the tree is 20 t 25 years ld that it becmes a real adult. The tree reaches its largest size. Nt nly des the adult tree give us shade, O2 and natural beauty; it is 41 a great place fr a tree huse, r a place fr us t rest, read a bk, listen 42 music r have tea. If we give the adult tree prper care, it will cntinue t live 43 (healthy) fr many years.
Gradually, trees begin t grw lder 44 lder and even die. At this time, they still have their imprtant place in nature. When a tree becmes hllw (空心的) r part f it becmes dead, it prvides a hme t small animals and is a surce f fd fr many ther animals. In many ways, the life f a tree is similar t 45 (we) wn life experience. When we are lking at the life f a tree, we learn abut that each perid f life brings its wn frm f jy and challenge.
Enjy every minute f the life f the tees and take care f the trees!
五、补全对话
请通读下面对话，根据对话内容，从选项中选出能填入空白处的最佳选项。选项中有一项为多余选项。
Je: I remember there used t be a park here. And the air used t be very fresh, Mr King.
Mr King: Yes, yu are right, Je. But nw the air pllutin is getting wrse and wrse.
Je: What caused the prblem then?
Mr King: 46
Je: What ther reasns are there?
Mr King: Factries burn cal and they make a lt f black smke. It can pllute the air, t.
Je: 47
Mr King: We shuld take public transprtatin instead f driving cars.
Je: Yes, I agree with yu. 48
Mr King: Yes, and they are gd fr ur health and they cst nthing.
Peter: 49
Mr King: Yes, and ur gvernment have already taken actin t shut ff sme factries which burn cal.
Je: 50
Mr King: I hpe s.
A．Hwever, it’s much faster t drive cars.
B．What shuld we d t cut dwn the air pllutin?
C．I hpe ur envirnment arund us will be better and better.
D．And we can als walk r ride bikes when ging ut.
E．Maybe sme factries shuld be shut ff fr saving the envirnment.
F．It’s because there are lts f cars n the rad these days.
参考答案：
1．D
【详解】句意：来自太阳和风能的能源成本很低，而且永远不会耗尽。
考查动词短语。turn ut结果是；put ut扑灭；cut ut切断；run ut用完，耗尽。根据“The energy frm the sun and the wind”可知，此处指风能和太阳能永远不会耗尽。故选D。
2．A
【详解】句意：——我认为读书真的是一个好习惯。——对。我认为我们读到的东西会影响我们的思维方式。
考查动词辨析。influence影响；interview采访；require需要。根据“I think what we have read ways f thinking.”和选项可知，读到的东西会影响我们的思维方式，influence符合题意。故选A。
3．A
【详解】句意：——你为什么要贮藏这么多食物？——我听说会下大雪。那我们就不能出去买了。
考查动词辨析。stre贮藏；leave留下；spread传播；guide引导。根据“I hear there will be a heavy snw. Then we can’t g ut t buy any”可知，听说会下大雪，不能出去买食物了，所以提前贮藏了一些，故选A。
4．B
【详解】句意：土耳其地震后，许多志愿者走上街头，向灾民分发瓶装水和食物。
考查短语辨析。get ut出去；hand ut分发；put ut熄灭；run ut耗尽。根据“…bttled water and fd t the victims”可知，向灾民分发瓶装水和食物。故选B。
5．D
【详解】句意：休息了三天后，旅行者们又出发了。
考查动词短语辨析。left ut遗漏 ； ran ut用完；brught ut生产；set ut出发。根据“After a three- day rest”可知此处指“休息后，又出发”。故选D。
6．B
【详解】句意：据报道，上个月在秦湖旅游胜地举行的2023年泰州铁人三项亚洲杯赛取得了巨大的成功。
考查动词短语辨析。ran ut用完；turned ut结果是；carried ut执行；tried ut试验。根据“2023 Asia Triathln Cup Taizhu (泰州铁人三项亚洲杯赛) held in Qinhu Turist Resrt last mnth... t be a big success.”可知，巨大的成功是泰州铁人三项亚洲杯赛举办的结果，用turned ut。故选B。
7．B
【详解】句意：——最新的电话价格太高了，我买不起。——是啊！但是我们学生不应该把注意力集中在对物质的需求上。
考查动词辨析。takes花费；suggest建议；csts花费；affrd支付得起；requires需要；sell卖。“花费”的句式为：it takes/tk sb.+时间+t d；sth. csts/cst sb.+金钱。根据“The latest much that I ”可知，此处表示电话价格太高，我支付不起，故选B。
8．A
【详解】句意：——这学期，你在数学方面取得了很大的进步。——是的。我真的很感谢我的数学老师。她帮了我很多。
考查名词辨析。prgress进步；prcess步骤；sadness难过。根据“yu’ve made great … in Maths”及“I’m really thankful t my math teacher. She helped me a lt”可知，在数学方面取得了很大的进步，故选A。
9．B
【详解】句意：——妈妈，我怎样才能照顾好这些花呢？——嗯，它们需要足够的阳光和水。
考查动词辨析。includes包括；requires需要；blcks阻碍；frms形成。根据“enugh sunshine and water.”可知是指花需要足够的阳光和水才能更好的生长，故选B。
10．C
【详解】句意：——你怎么知道他是英国人？——噢，拜托。这很明显，他的口音很重。
考查形容词辨析。deep深的；hard艰难的，困难的；heavy重的，沉重的；dark黑暗的。根据“It’s bvius.”可知这个英国人口音比较重，容易识别。故选C。
11．C
【详解】句意：——你认为约翰能在武汉马拉松比赛中获奖吗？——现在不可能。他本该获奖的，但他刚刚把腿弄伤了。
考查动词辨析。advised建议；required需要；suppsed应该；requested要求。根据“He was … t d s, but he has just hurt his leg”可知，本来应该要获奖的，但是腿受伤了，故选C。
12．D
【详解】句意：我的梦想是成为一名作家，然后我可以用笔很好地描述事情。
考查名词辨析。guide导游；pilt飞行员；wrker工人；writer作家。根据“then I can describe things well with a pen.”可知，成为作家可以用笔描述事情。故选D。
13．D
【详解】句意：——你对抚仙湖了解多少？——哦，它是云南省最深的湖泊。
考查形容词最高级。deep深的，形容词原级；deeper更深的，形容词比较级；deepest最深的，形容词最高级。根据“it is ... lake in Yunnan Prvince.”及地理常识可知，抚仙湖是云南最深的湖泊，此处要用最高级，且与定冠词the连用。故选D。
14．C
【详解】句意：——中国的高铁技术处于世界领先地位。——是的。它正在向世界进一步发展。
考查名词辨析。ppulatin人口；envirnment环境；technlgy技术；infrmatin信息。根据“China’s high-speed leading the wrld.”并结合语境可知，是指中国的高速铁路技术处于世界领先地位。故选C。
15．A
【详解】句意：澳大利亚人与英国人关系密切。许多人有英国亲戚。
考查名词。relatinship关系；standard标准；intrductin介绍；technlgy科技。根据“Many have British relatives.”可知，澳大利亚人与英国人关系密切。故选A。
16．A 17．B 18．B 19．A 20．D 21．B 22．D 23．B 24．C 25．D
【导语】本文主要介绍三个大学生创办的一个工作室。他们用无用的东西创造出一些有趣的小东西。
16．句意：房间里满是各种各样无用的东西。
full满的；wind风；rich富有的；wise明智的。根据“... are filled with clrful things.”可知，工作室的墙上摆满了五颜六色的东西，而房间里也满是各种各样无用的东西。故选A。
17．句意：在学校时，于雷参加了很多节目，但他发现人们在节目结束后扔掉了无用的东西。
theaters戏剧；shws节目；plays戏剧；mvies电影。根据“ the shws.”可知，此处指于雷参加了很多节目。前后两句紧密联系，均指shws“节目”。故选B。
18．句意：然后他开始向父亲学习，并用这些无用的东西创造出一些小东西。
catching抓住；creating创造；stealing偷；treating治疗。根据“small things”和“ f these useless things.”之间的联系可知，此处指于雷用无用的东西创造出一些小东西。故选B。
19．句意：2020年7月，大学毕业两年后，他和两个朋友一起创立了这家“再生实验室”。
funded建立；attacked攻击；attended参加；suggested建议。通读全文可知，此处介绍“再生实验室”的创立：于雷大学毕业后和朋友一起建立了这家名为“再生实验室”的工作室。故选A。
20．句意：在这里，三个人有不同的分工。
similar类似的；general一般的；difficult困难的；different不同的。根据“Yu Lei wrks n art and makes all kinds f tls. Yan Xingwang makes dlls and Yu Weiyi lks...”可知，于雷和他的朋友分工不同。故选D。
21．句意：闫兴旺是做娃娃的，余伟毅负责商务部分（经营），这可以为他们的生活费用和发展带来充足的资金。
success成功；business商务；inventin发明；directin方向。根据“... which can bring plenty f fund (资金) fr their living cst and develpment!”可知，余伟毅负责经营业务，为他们的生活和发展提供资金。故选B。
22．句意：他们花了很多时间创作儿童戏剧，到目前为止已经创作了四部。
spread传播；manage管理；waste浪费；spend花费。根据“lts f time”可知，此处考查固定搭配spend time ding sth.“花费时间做某事”。故选D。
23．句意：“我从花鸟市场收集东西，”于雷说。
watch观看；cllect收集；pick挑选；thrw扔。根据“Peple f all ages are interested in ur wrk and keep cllecting different kinds fr us.”可知，不单于雷会收集各种东西，各个年龄段的人也会为他们收集各种各样的东西。故选B。
24．句意：各个年龄段的人都对我们的工作感兴趣，并一直为我们收集各种无用的东西。
priceless无价的；hpeful充满希望的；useless无用的；helpful有用的。根据“The rm all kinds f useless things.”和“Then he started learning frm his father things ut f these useless things.”可知，他们收集无用的东西。故选C。
25．句意：事实上，他们在杭州路的工作室很快变得受欢迎。
privately私下地；secretly秘密地；silently悄悄地；rapidly很快地。根据“Peple f all ages are interested in ur wrk ...”“They surely believe their small wrkplace can turn int a big ne smeday.”可知，各个年龄段的人都对他们的工作感兴趣，他们的工作室很快就变得很受欢迎，他们确信，有一天，他们的小工作室会变成大工作室。故选D。
26．C 27．B 28．C 29．B 30．C
【导语】本文主要介绍了如何更环保地生活，通过避免不良习惯来保护地球。文章列举了一些具体的方法，通过这些方法，我们可以为保护地球做出巨大的贡献。
26．细节理解题。根据第一段“Accrding t a reprt by the ISRC in 1997, great changes abut saving the Earth can be made simply by aviding bad habits.”（根据ISRC在1997年的一份报告，拯救地球的巨大变化可以通过简单地避免坏习惯来实现。）可知拯救地球的巨大变化可以通过简单地避免坏习惯来实现，故选C。
27．细节理解题。根据文中“Try nt t buy single–use things, such as chpsticks.”（尽量不要买一次性用品，比如筷子。）可知选项C表述正确；根据文中“Walk r cycle mre.”（多走路或骑自行车。）可知选项A表述正确；根据“Use mre natural light. Turn ff lights that are nt needed.”（使用更多的自然光。关闭不需要的灯。）可知如果想保护环境，不应该让灯开着，选项B表述错误。故选B。
28．推理判断题。根据文中“Put empty bttles in a bttle bank.”（把空瓶子放在瓶子库中。）可知汤姆帮忙把空瓶子拣进瓶子库，所以他是更环保的人，故选C。
29．推理判断题。根据第一段“Accrding t a reprt by the ISRC in 1997, great changes abut saving the Earth can be made simply by aviding bad habits.”（根据ISRC在1997年的一份报告，拯救地球的巨大变化可以通过简单地避免坏习惯来实现。）可推知节约世界资源是我们的责任，故选B。
30．推理判断题。根据标题“Hw t becme mre envirnmentally friendly”（如何变得更环保），可知本文主要告诉人们如何过更环保的生活，故选C。
31．B 32．C 33．A 34．C 35．C
【导语】本文主要讲述了作者家人在世界地球日这天挑战自己，尽可能产生更少的垃圾。从这次经历让作者明白每个人都可以制造更少的垃圾，应该从小事做起，保护地球。
31．细节理解题。根据“S n that day, ur family held an activity ‘bttle f trash challenge’”可知，作者家人举办了“垃圾瓶子挑战”活动，故选B。
32．细节理解题。根据“My father wrked nline all day, s he didn’t prduce any paper waste except paper napkins (餐巾纸). He made the least trash in ur family.”可知，爸爸制造的垃圾最少，故选C。
33．词义猜测题。根据“What’s wrse, we culdn’t eat up all the fd f the dinner that day. S leftvers culdn’t be avided.”可知，没有吃完所有的食物，所以剩菜不可避免，leftver表示“吃剩的食物”。故选A。
34．细节理解题。根据“My sister, a 16-year-ld student, was busy preparing fr her exams.”可知，她忙着为考试做准备，故选C。
35．推理判断题。根据“I’ve learnt a lt frm this activity. I realize that everyne can prduce less trash. We shuld start with small actins t prtect the earth!”可知，作者想通过自己的经历呼吁人们减少垃圾制造，从小事做起来保护地球，故选C。
36．ldest 37．like 38．nt 39．leaves 40．face 41．als 42．t 43．healthily 44．and 45．ur
【导语】本文主要介绍了树木成长过程并呼吁大家保护树木。
36．句意：树木是我们地球上最古老的“公民”之一。ne f+最高级+名词复数，表示“最……之一”，ld表示“老的”，单音节形容词，最高级直接加est。故填ldest。
37．句意：就像我们一样，树木在生长过程中会发生很大变化。空后是宾语us，此处用介词，构成介宾短语，like表示“像……”符合语境。故填like。
38．句意：例如，许多树长刺是为了警告动物不要靠近。warn sb. nt t d sth.表示“警告某人不要做某事”。故填nt。
39．句意：大多数幼树都长着深绿色的大叶子，这样它们就能捕捉到足够的阳光，并将其转化为食物和能量。根据常识可知树叶吸收阳光，leaf表示“树叶”，此空用名词复数表一类，leaf复数需变f为v再加es。故填leaves。
40．句意：当树长到四岁时，它们开始长得很快且变得足够强壮来面对之后生命中的挑战。face表示“面对”，动词，enugh t d sth.表示“足够做某事”。故填face。
41．句意：也是建造树屋的好地方。根据上文“Nt nly des the adult tree give us shade, O2 and natural beauty”可知，此处表示“也”，位于句中，用副词als。故填als。
42．句意：或者供我们休息，读书，听音乐和喝茶的地方。listen t music表示“听音乐”。故填t。
43．句意：如果我们适当照顾成年树木，它们会健康生长很多年。healthy表示“健康的”，形容词，此空需用副词healthily来修饰动词live。故填healthily。
44．句意：逐渐地，树木开始变得越来越老并死亡。形容词比较级+and+形容词比较级，表示“越来越……”。故填and。
45．句意：在很多方面，树木的生命和我们的生活经历很相似。we“我们”，人称代词，此处需用形容词性物主代词ur“我们的”来修饰名词life experience“生活经历”。故填ur。
46．F 47．B 48．D 49．E 50．C
【导语】本文是乔和金先生两个人就现在空气污染问题的对话。
46．根据上文“What caused the prblem then?”结合语境，可知此处应是说引起环境问题的原因，结合选项，F选项“这是因为现在路上有很多车。”符合语境，故选F。
47．根据下文“We shuld take public transprtatin instead f driving cars.”可知此处应是问做什么来减少空气污染，结合选项，B选项“我们应该做些什么来减少空气污染?”符合语境，故选B。
48．根据上文“We shuld take public transprtatin instead f driving cars.”以及“Yes, I agree with yu.”可知此处应是进一步描述可以减少污染的做法，结合选项，D选项“我们出去的时候也可以走路或骑自行车。”符合语境，故选D。
49．根据下文“Yes, and ur gvernment have already taken actin t shut ff sme factries which burn cal.”可知此处应是认为一些工厂应该关闭，结合选项，E选项“也许为了保护环境，一些工厂应该关闭。”符合语境，故选E。
50．根据下文“I hpe s.”结合上文语境，可知此处应是对未来环境的希望，结合选项，C选项“我希望我们周围的环境会越来越好。”符合语境，故选C。
Hw t becme mre envirnmentally friendly
•Dn’t leave the tap running when yu brush yur teeth.
•Have a shwer instead f a bath.
•Make a shpping list. Dn’t just g and buy whatever yu happen t see.
•Avid things with lts f packaging.
•Try nt t buy single–use things, such as chpsticks.
•Walk r cycle mre.
•Use mre natural light. Turn ff lights that are nt needed.
•Put empty bttles in a bttle bank.
•Wash dishes by hand, r wait until the dishwasher is full befre yu use it.
•Use natural ventilatin（通风设备）instead f air cnditining where pssible.
•Eat mre rganic（有机的）vegetables（which dn’t use chemicals when grwn）.