新沪教版英语七上unit3the-Earth精讲与专练习

1、Unit3 the Earth.要点短语：1.be covered by 由覆盖14 .It is +adj.for sb to tect the Earth 保护地球对某人来说做某事很3.many differe nt pla nts15 .let sb do sth让某人做某事许多不同的植物16 .one quarter四分之一，一刻钟4.somesome一些一些 17 .ask sb to do sth让某人做某事5.on Earth在地球上18 .catch fish 抓鱼6.on the land在陆地上19 .fewer and fewer 越来越少7.in the

2、 sky在空中20 .each year 每年&under the water 在水下面21 .throw away 扔掉9.provide sb with sth=provide sth for sb22 .n eed sth to do sth需要某物来做某事给某人提供某物23 .keep sb alive 保持某人存活10.make energy 制造能源24 .find out查清楚,弄明白11.put in to把放进25 .a long time ago = long , long ago12.under the ground 在地下很久以前13.stop doing st

3、h停止做某事26 .in the end 最后，终于二.要点解释：1. Read a poster about the Earth .阅读有关地球的宣传海报。Earth n.意为"地球”，其前面需要定冠词the。eg： The moon goes round the Earth.还有"陆地，地面；泥，土”的意思，此时不需要大写。eg： The balloon fell to earth.on Earth= on (the) earth,意为"在地球上” 。eg： We live on Earth.我们生活在地球上。2. Talk about what we can

4、 do to protect the Earth.讨论为保护地球我们能做些什么。 protect v.保护 protect ion n.保护protect sb./sth. from/against sth保护某人/某物免受伤害We must protect the forest from fire.我们必须保护森林免受火灾。3. About 70% of the Earth is covered by water.百分之七十的地球是被水所覆盖百分数做主语时，谓语动词要与它所指代的名词相一致About 60% of the students in our class are girls.我们班

5、 60% 的学生是女孩。be covered by被覆盖着，表动作；The road is covered by leaves in autumn.秋天这条路盖满了树叶。4. There are also many people like you and me on Earth.地球上还有很多像你我一样的人。(1) 区分 also; too; eitheralso常用于肯定句中，位于实义动词前，或用于 be动词、情态动词之后；He also enjoys reading.他也喜欢阅读 He is also clever.他也很聪明.too 通常用于肯定句末，其前有逗号really like t

6、his song, and I like the first one ,too.either 用于否定句末 ,其前有逗号 I don ' t like singing. She doesn ' t like singing, either.(2) like v.喜欢like doing sth喜欢做某事本句中like是介词，意为"像 ” 一样"That' s not right. Do it like this.那样不对，像这样做才对。5.The Earth provides us with air, water and food.地球为我们提供了空

7、气、水少食物。provide 及物动词，意为"提供”，provide sb. with sth.= provide sth. for sb.为某人提供某物.The sun provides us with light and heat.= The sun provides light and heat for us. 太阳给我们提供光和热。6. Today, there is a lot of pollution. 今天，有很多污染。pollution不可数名词，意为"污染”。air pollution空气污染noise pollution噪声污染There is a lo

8、t of pollution in the air here.这里的空气有大量的污染。pollute及物动词，意为"污染；弄脏”The dirty water from the factory pollutes the river.来自工厂的脏水污染了这条河。7. We burn things to make energy.我们燃烧一些东西来制造能量burn及物动词，=set .on fire意为"燃烧；点燃”energy不可数名词，意为"能量；能源”make energy “制造能量；获取能量”She burns all her books.她把书全烧了。It

9、is importa nt to save en ergy. 节省能源十分重要。Now, people use water, the wind and the sun to make energy.如今，人们利用水、风和太阳来获取能量。8. We put our rubbish into the sea and under the ground.我们把垃圾倒入海洋、埋入地下。putinto 把放入；把倒入They put the waste water into the river.他们把废水倒入河中。Please put all your toys into the box.请把你所有的玩具

10、都放入这个箱子里。拓展】和put有关的短语： put up举起；张贴put off推迟；推延 put away把,，收拾好put down 放下；写下；记下 put on 穿上 put out 熄灭；扑灭9. We must stop doi ng these thi ngs. 我们必须停止做这件事。stop doing sth意为"停止做某事”，即停下手头正在做的事情。It' s time for class.Stop talk in g.到上课时间了，不要说话了。区分：stop doi ng sth 停止手头正在做的事情stop to do sth停下手头的事情，去做另一

11、件事情(停下来去做 )We stopped to talk when we met in the street.当我们在街上碰见时，我们停下来说话。We are all tired. Let' s stop to have a rest.我们都累了，停下来休息一会儿吧。10.lt is importa nt for us to protect the Earth for our future.对我们来说，为未来而保护地球是重要的。It is+形容词adj.+for sb. +动词不定式短语 to do sth 对某人来说做某事是It is important for us to lea

12、rn English.对我们来说学英语很重要。It' s very useful for us to lear n En glish well.对我们来说学好英语很有用。It is good for me to eat more vegetables.多吃蔬菜对我而言是有好处的。以上句型中，有时也可将for sb.省去，即It is +adj.+ to do sth.做某事是样的习题练习一. 同义词()1. The water in the river is very dirty and it kills lots of fish in it .A. makescleanB. make

13、shealthy C. makesinterestingD. makesdie()2. We should protect the Earth from now on, or we'll be in dan ger.A. keep safe B. keepdirty C. keepfresh D. keep beautiful()3.The cars give out lots of bad gases (气体)and they pollute the air.A. make clean B. makefresh C. make new D. make dirty( )4. Our s

14、chool gives us lots of cha nces to show ourselves.A.helps withB. provides with C. throws away D. putsinto( )5. The garage isn' t large eno ugh for two cars. A.good B.big C.high二. 根据句意及首字母提示完成单词.1. We all kn ow that the Eis round.2. Some people are work ing in the fby the river.3. Which one do yo

15、u like better, the lone or the small one.4. The lis used for grow ing food.5. This article has two p.6. A lio n is the king of the f.7. Ma ny peoople still burn wood to make e.8. We often have a qat the begi nning of the class.9. D on't taway the rubbish in the river.10. It's ifor us to keep

16、our body healthy.三. 用括号内所给单词的正确形式填空。1. France is a(beauty) seaside (海边)country.2. I water the(plant) twice a week.3. My dress is(differenee) from yours.4. I saw many(animal) in the zoo yesterday.5. There(be) two books and a pencil on the desk6. We can get a lot of(energy) from food.7. Miss Li, can y

17、ou help me? I can't solve these difficult(problem).8. The little girl is so sad that she just can ' t stop(cry)9. Three(quarter)of teh world ' s surface is covered with water.10.It 'good for us(liste n)to En glish ofte n.四. 单项选择.( )1. There are different animalsEarth.A. onB. in C. wi

18、th D. to( )2. - What do the pla nts n eed to live? - They n eedand water.A. a light B. lightsC. lightD. ma ny lights( )3. Where do an imals live? -Some livethe land. Some flyA. on; inB. to; on C. in; inD. on; on()4. Stoparound and get on with the job.A. play B. to play C. plays D. playing()5.is the

19、weather like today in Guan gzhou? It is sunny and hot.A. How B. Why C. WhatD. When( )6. We are going to liste n to Doctor Wan g'sin the school hall.A.reportB. repeatC. problemD. questi on( )7. Taiwa n is aof China.A. la ndB. bodyC. partD. sect ion()8. We only havebooks. A. little B. much C. ma n

20、yD. few( )9. Theythe childre nfood an;d books.D.widethe sky.A. give; with B. provide; with C. provide; for D. give; for()10. Our teacher always asks usto bed late.A. going B. not going C. to goD. not to go()11. -Don't throwrubbish on the ground.Oh, I'm sorry.A. aB. anC. /D. the( )12. Therea

21、football match betwee n Chi na and Korea this after noon.A. hasB. isC. hadD. was()13.You look sad, Jack. Our team gets a new job, butis difficult for us to finish it in a day.A. thatB. this C. itD. he( )14. Don'tyour fin gersyour mouth. It's bad for your health.A. put; intoB. throw; intoC. p

22、ut; upD. put; aside.( )15. When you do the liste ning practice, pleasethe importa nt in formati on.A. catchB. kn owC. lookD. make( )16.lt is very importa nt for usEn glish well!A. learnB. to lear nC. learni ngD. learned( )17.Therepen cil-box, two books and some flowers on the desk.A. is aB. are some

23、C. has aD. have some()18.1 want to be a farmermy uncleA as B likeC likesD looks like五. 根据汉语提示完成句子1. 一些生活在陆地上。一些飞行在天空中。一些生活在水下。Some live.Some fly.Some live.2. 地球为我们提供空气、水和食物。The Earthusair, water and food.3. 我们把垃圾倒入海中或地下。Weour rubbishthe sea and under the ground. 4.我们必须停止做这些事情。We mustthese thin gs5. 对我们来说，为了未来，保护好地球是很重要的。It is importa ntusthe Earth for our future6.