(完整)广州初三Unit3Theenvironment讲解+语法+练习(2)

1、Unit 3 The environmentI .学习目标1. Unit 重点单词、短语2. 目的状语从句的用法n .重点、难点分析1.Our world is in danger. 我们的世界处于危险中。in danger 在危险中，濒危This kind of bird is in danger. We need to do something to protect them.拓展 out of danger 脱离危险He is out of danger now.2.The atmosphere around the Earth is necessary for all living t

2、hings.sth. is necessary for sb/ sth对于某人而言，干什么是必须的。Water is necessary for fish.拓展 ： Its necessary for sb. to do 对于某人而言，干什么是必须的It s necessary for us to go to school on time. living things 生物， living adj 活的，活着的They are like living textbooks for young people.辨析 ： living 和 alive两者都为形容词，living 活的，活着的，即可作表

3、语又可作定语，既可以用于指人也可以用于指物。而alive 活的 不用于名词前，只做表语。They are living and as happy as ever他们者B还活着，并且跟以前样快活。Luckily, the boy is still alive. 幸运的是，那个男孩还活着。3. As a result of the greenhouse effect, the Earth s temperature is increasing.as a result of由于，作为的结果，与 because of同义。He died as a result of his injuries. 他由于

4、受伤而死亡。辨析： as a result of 和 as a resultas a result of介词短语 由于，后跟名词、代词等as a result 副词短语结果，后跟事情的结果I was late as a result of the heavy rain.He got up late today. As a result, he missed the early bus. increase 增长、增多增加此处是不及物动词The population of the world is increasing fast.拓展：increase by增长了，by后接百分数、倍数或增长的幅度

5、；increase to增长到，to后接具体的数字They increase the price by 20 .The population of our country has increased to 1.3 billion.4.In order to protect the environment ,we need to take proper per adj. 正确的；恰当的I didn think it was proper to ask for the lady s telephone number so soon.我认为这么快就 要那位女士的电话号码不太合适。

6、同根词 properly adj. 正确地，合适地She can read German but has trouble speaking it properly.4. Every year, we destroy nature by cutting down huge areas of foreasts.nature n. 自然界，大自然We like camping, it makes us feel closer to nature.Our purpose is not only to conquer nature but also to remake nature. 我们的目的不仅要征

7、服自然，而且还要改造自然。同根词 natural adj. 自然的，天然的Don t worry .It s a natural phenomenon. 别担心，这是自然现象。We must protect the natural environment.6. If we just learn to live in new and different ways, we can make a difference.Make a difference 有作用，有影响，与众不同The easiest way to make a difference is not to throw rubbish a

8、way.It doesn t make a difference to you, does it?7. I am concerned too.be concerned关心，担心，挂念， concerned为ad,通常与 for和 about连用，与be worried about 同义。Don t be concerned about/for me.8. This causes sea level to rise, and in the future may cause cities to disappear.辨析： in future 和 in the futurein future: 相当

9、于 from now on 今后,从今以后I hope theyll be more cautious in future, he observed.Keep your opinions to yourself in future!in the future: 在将来The boy wants to become a philosopher in the future.We learn from the past, experience the present and hope for success in the future.我们从过去中学习，体验现在，展望未来的成功。Ex.1一 根 据句

10、子的意思，用所给词的适当形式填空。1.1 ts clear that ( nature) disaster is one of the reasons to the economic crisis.2.In order to protect the water resources, we need (take) proper action.3.Our environment is (danger) if we don t stop polluting it.4.Cutting down trees also (destroy) the homes of animals.5.I dont dou

11、bt that the police acted (proper)6.The food industry is playing more attention to young (consume).7.It causes the surface of the soil to be (easy) destroyed by rain.8 .We can help protect the environment if we change our bad (habit).9 .As a result of the earthquake, many people (leave) homeless.10Th

12、e government has decided (increase) salaries for all civil servants.语法 like & same & different语法梳理A、 “ The same” and “ different ” .如果两个或两个以上的事物是完全相同，英语中可以用the same 表达，如果不相同，我们可以用different 表达。 The same 和 different 可以做形容词做表语或者做定语修饰名词代词等, the same 后面常接单数名词而different 后常接复数名词.We are in the same school,b

13、ut we are in different classes.B、 like, the same as 和 different from ”说明事物或人物之间存在某种程度的相似性，我们常用“ like”或“be like； look like , 像；看起来像。说明事物或人物完全相同，我们常用：“ the same as”。既不相似也不相同，我们常用：“ be different from”。He ran out an arrow.（像）It s a special music, sounds great!（像）Mr Jiang s computer and my computer are i

14、n size, his is big and mine is small.（不同）An MP3 player a CD player, an MP3 player doesn tuse discs.（不同于）My bike as yours.（相同）This suit looks that one.（相同）C、“the same as我们可以把名词或短语放在 the same之后，构成the same+n./phrase+as61型。My father works in the same company as her uncle.D. 总结句子结构： 1. sth. + v. + the sa

15、me这两首歌听起来一样。2. sth. + v. +different这三个教室大小不一样。3. sb. + v. + like + sth.坐在那里的老人像块石头。4.sth.+v.+the same as +sth.我衣服的颜色和你的相同。5.sth. + v. + different from + sth.他们的房间和我们的不同。6. the same + n .+ as 她和我犯了同一个错误。Ex.21. Peter is the same age Paul.2. We should be different them and use both sides of paper.3. Th

16、e cat in picture A is (small) than the one in picture B.4. He is as tall his father now.5. I can speak English as (good) as French.单元测试一 .单项选择1 .We must do something to stop people from .A.to throw litter aboutB. to throw litter intoC. throwing litter aboutD. throwing litter into2 . the students in

17、Zhejiang University are from foreign countries.A. Seven hundreds of B.Seven hundreds C.Seven hundred of D.Hunderds of3 . I have arranged for a car to at the station.A.pick them upB.pick up them C.pick them onD.pick onthem4 .There were many horrible smells I cant stay here more than one minute.A.such

18、; thatB.too;forC.too; soD.so; that5 .When I ,I found myself a terrible place.A.wake up; in B.woke up; inC.fell asleep; atD.fall asleep; at6 .Bob hasn t changed. He exactly he did at school.A.looks; the same as B.look; the same as C.looks; the same to D.has looked; the same as 7. He his watch his poc

19、ket, and wanted to know the time.A.takesout ofB.took out ofC.takesout withD.took out with8 .The seeds must be covered with earth.A.a layer ofB.a lay ofC.a layer withD.a lay with9 .This book believable, interesting characters.A.is full withB.is filled ofC.is full of D.is full10 . I feel lost and in a

20、 strange town.A.alone; lonelyB.alone; alone C.lonely; lonely D.lonely; alone二 语法选择How do people pass on messages? When you write a letter or make a telephone call, your words take a message. People communicate with words. Do you think you can communicate with words? A smile 26 your face shows you ar

21、e happy and friendly. Tears in your eyes tell 27 that you are sad. When you 28 your hand in class, the teacher knows you want to say something 29 ask questions. You shake your head, and people know you are saying no. You nod and people know you are saying yes.Other things can also give some informat

22、ion. 30, a sign at the bus stop helps you to know which bus 31 . A sign on the wall of your school helps you to find the library. Signs on doors tell you how to go in or out. 32 you ever noticed that there are a lot of signs around you and that you receive messages from 33 all the time? People can c

23、ommunicate in many other ways. An artist can use his drawings to tell about beautiful mountains, about the blue sea and many other things. Books 34 to tell you about all wonderful things in the world and also about people and their ideas. Books, magazines, TV and radio and films allhelp us to commun

24、icate with other people. They all help us to know 35 is going on in the world.11.A. inB.onC.atD.over12.A.othersB. the othersC. otherD. the other13.A.put onB.put outC.put upD. put down14.A.whenB.orC.butD. and15.A. For exampleB. SuchasC. HoweverD. Even though16.A. to getB. to goC. to haveD.to take17.A

25、.DoB. DidC. HadD.Have18.A. itB.itselfC. themD.themselves19.A.writeB. wroteC.is writtenD.are written20.A. whatB. whichC. thatD.who完型填空。Last week I read a report on a charity show. The aim of the show was to _1_ money for the poor children who were out of school _2_ their families didn t have_3_money

26、for their children.Many famous pop stars _4_ the charity show, such as Jackie Chan and Lin Junjie. The stars didnt_5_ any pay ( 报酬 ). They did that for free. There were a lot of performances, including singing and dancing. The audience were_6_excited that they clapped their hands (鼓掌) from time to t

27、ime. Of course, the show was _7_All the people followed the _8_examples. They gave their money to the charity show. Both the ticket money and the donated money would be sent to the poor areas and some of the poor children would go back to school.Now many charity shows_9_ in our country, not only to

28、support education in poor areas but also to help people in trouble. I hope the whole world will become more and morebeautiful_10_ peoples help.() 21. A. payB. raiseC. giveD. spend() 22. A. butB. soC. becauseD. and()23. A. too manyB. enoughC. much tooD. many() 24. A. joinB. take part inC. took part i

29、nD. joined() 25. A. ask forB. hand outC. worry aboutD. cost() 26. A. veryB. suchC. soD. quite() 27. A. importantB. successfulC. tiringD. boring() 28. A. starsB. star sC. starsD. audience s() 29. A. are heldB. holdC. are holdingD. are giving() 30. A. underB. withC. withoutD. by四.阅读理解。1970 was World C

30、onservation Year. The UN wanted everyone to know that the world was in danger - they hoped that governments would act quickly in order to conserve nature. Here is one example of the problem. At one time there were 1,300 different plants, trees and flowers in Holland, but now only remain 860. The oth

31、ers have been destroyed by modern man and his technology. We are changing the earth, the air and the water, and everything that grows and lives here. We cant live without these things. If it continues like this, we shall destroy ourselves.What will happen in the future? Perhaps it is more important

32、to ask What must we do now? The people who will be living in the world of tomorrow are the young of today. A lot of them know that conservation is necessary. Many are helping to save our world. They plant trees, build bridges across rivers in forests, and so on. In a small town in the United States

33、a large group of girls cleaned the banks of 11 kilometers of their river. Young people may hear about conservation through a record called NO ONES GOING TO CHANGE OUR WORLD. It was made by the Beatles and other singers. The money from it will help to conserve wild animals.31. The UN set up World Con

34、servation Year because.A. the world was in danger of warB. the government had done something to protect the worldC. many things were destroyed by the technologyD. man and his technology destroyed the earth badly32. kinds of plants have disappeared in Holland in the past few years.A .860B. 440C. 1,30

35、0D. 2,16033. NO ONES GOING TO CHANGE OUR WORLD is.A. a recordB. a songC. a bookD. a CD34. It is impossible to save our world if we.A. plant treesB. clean the banks of riversC. picking rubbishD. listen to the record35. The passage mainly tells us.A. the people who will be living in the world of tomor

36、row are the young of todayB. what will happen in the world in the futureC. conservation of nature is necessaryD. everyone has known the importance of conservation of nature since 1970Gasoline （汽油） prices are getting higher and higher. The prices make it hard for driversto afford the fuel.One group h

37、eld a special event to display （展示）new kinds of cars .The new cars are different and they can run on many different kinds of fuels.Some of these cars are called hybrids（ 混合动力）. They can run on different kinds offuels. One kind of them runs on a special fuel cell which is filled with a gas called hyd

38、rogen. The fuel cell cars are also better in another way. They give off no emissions （排放物）.They are very clean, and don t give off bad fumes when they are running.One man who makes fuel cell cars is excited about the hydrogen fuel cell technology.He says we will never run out of the sources of the f

39、uel ,but we may run out of the oil.Once we use oil up, it will take millions of years for more oil to form. Since gasoline is made from oil, that could be a problem for companies that make traditional cars , and for drives .However, it won t be a problem for cars that run on fuel cells.Buses that ru

40、n on hydrogen fuel cell power are being tested on the road. They could become a common form of transportation in the near future36. From the first paragraph we know thatA.cars are more expensive nowB.people are poorer now than beforeC.drivers have to pay more to fill their cars with gasolineD.it s u

41、seless to have a car37. What does the underlined word “ hydrogen” mean?A.氢 B.磷C.钾D.钙38. Which of the following is not the advantage of the hydrogen fuel cell car?A. Its better to the environment to drive it.B. We will never use up the source of the fuel.C. It can avoid road accidents.D. It doesn t g

42、ive off bad fumes when it runs.39.What s the problem for traditional cars?E. Oil will be used up.F. Traditional cars will be forbidden to drive.G. Its hard to learn to drive.H. Fuel cell cars have more advantages.40.Whats the main idea of the passage?I.J.K.L.Traditional cars polluted the environment

43、 badly.Gasoline becomes more and more expensive.A special fuel cell is very useful.A new kind of cars will replace the traditional ones.I can t remember when I started collecting litte垃圾）.But it was when I got tired of seeing litter near my home and realized that no one else was going to pick it up.

44、I live close to a forest in Ohio, America. I can walk there in three minutes! I used to love going there to play with my dog. But one day there was so much litter there that I became very unhappy. I decided to clean up the forest. I wanted to feel happy going there again.I made my first trip to clea

45、n the forest that afternoon. I took a big black rubbish bag with me. Ten minutes after starting to pick up litter, my bag was full! It had cans, bottles, broken glass and newspapers in it.Since that first trip three years ago, I ve gone to thse afoyreastr ftoouprictikmuep litter.I m often there for

46、three hours. It makes me feel great to do something for the environment.After each trip, I look at all the litter I ve found. If any Of 收isrecyClkeepit. I can t understand why people ditrtoepr. lBut I will keep picking it up until they stop dropping it.I know I can only do a small bit to help the ea

47、rth, but I still think it is important.41 . When did the writer begin to collect litter?A When he was veryyoung.B After his home moved to a new place.C When he realized no one else was going to pick it up.42 . Where does the writer live?A He lives in a forest.B He lives near a forest.C He lives in a

48、 place with much litter.43 . The writer collects litter .A in order to make moneyB in order to get a prizeC in order to make the place clean44 .Where does the writer collect litter?A In the forest. B In the street.C In the park.45 .From the passage we infer （推断）A the writer will go on with collectin

49、g litterB the writer always collects a lot of litterC the writer thinks he does a great thingDLife is speeding up. Everyone is getting unwell. This may sound like something someone would say today. But in fact, an unknown person who lived in Rome in AD 53 wrote it. We all love new inventions. They a

50、re exciting, amazing and can even change our lives. But have all these developments really improved the quality of our lives?Picture this,： Youre rushing to finish your homework on the computer. Your mobile phone rings, a QQ message from your friend appears on the screen, the noise from the televisi

51、on is getting louder and louder. Suddenly the computer goes blank and you lose all your work. Now you have to stay up all night to get it done. How happy do you feel?Inventions have speeded up our lives so much that they often leave up feeling stressed and tired. Why do you think people who live far

52、 away from noisy cities, who have no telephones, no car, not even any electricity often seem to be happier? Perhaps because they live a simpler live. One family in the UK went back in time to see what life was like without all the inventions we have today.The grandparents, with their daughter, and g

53、randsons Benjamin, 10 and Thomas, 7, spent nine weeks in a 1940s house. They had no washing machine, microwave, computer or mobile phones. The grandmother, Lyn, said, The more things you have, the more difficult life becomes. The boys said they fought less. Probably, they said, because there was les

54、s to fight over, such as their computer. Benjamin also noticed that his grandmother had changed from being a trendy, beer-drinking granny, to one who cooked things46. The writer uses the quote（弓 I用）at the beginning of the story to.A. tell us a truth about our live.B. tell us what life was like long time ago.C. poin