江苏译林版英语九年级下册第4单元知识点解析讲义课件(共13页).doc

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1、精选优质文档-倾情为你奉上9B Unit 4 第一讲【单词拓展】专心-专注-专业Marshelmetair tankdried foodpower packsleeping baggravityplanetcrowdedpollutedrapidincrease(all) over againover againpassengerat a/the speed ofuncomfortableoxygenin the form oftastyspeciallyfloatcomparecompare to/withinterplanetarynetworkchallengingrapidlyawar

2、ecircleagreementdistancepossibilityalienstrangercarry outpercentagedisadvantageriskafter allgoodselectronicentertainment【知识点解析】1. Wow, Ive never thought about travelling into space.think about，考虑。about是介词，后可接名词、代词或动名词，作宾语；也可以接疑问词不定式结构或宾语从句。表示“你认为怎么样” ，what do you think of=what do you think about=how

3、 do you like =How do you find 后可接名词代词或动名词。拓展：你认为他的想法怎么样？How do you like / What do you think of /about idea?l think over，思考；考虑。over是副词，如果代词作其宾语，则要将代词放在think 和over中间。考虑一下，你就能找到办法。2. Me neither.me neither，在此处neither副词，意思是也不, 也不是。常用于neither+助动词/情态动词/连系动词be主语结构，表示前面所说的否定情况同样适用于后面的人或事物，意思是某人/某物也不。 Mary ca

4、nt swim. Neither can I. You didnt go to the park yesterday. Neither did Tom.Neither可以作形容词，与单数名词连用，“两者都不”Neither answer is correct.两个答案都不对。Neither可以作代词，“两者都不”, 是both的反义词。Neither of my friends has come yet. 我的两个朋友都没来。拓展：Neither /nor和so 引导的倒装结构中的助动词/情态动词/连系动词be，应与前句的谓语部分，以及后面的主语，在人称和数上保持一致，时态和前句保持一致。如果

5、前面的句子是肯定句，一般用 So助动词/情态动词/连系动词be+主语结构，表示前面所说的肯定情况，也同样适用于后面的人或事物，意思是某人物也一样。 They went to the zoo yesterday. So did we.They have been to shanghai. So has he. Neither of my friends has come yet.Neither用作连词，常和nor 连用。 Neither nor既不也不，连接两个平行结构。如果连接两个并列主语，谓语动词要遵循就近原则。 I can speak neither English nor Japanes

6、e. Neither he nor I have been to Beijing.3. What would it be like to live on Mars?Whats sb. like ? 意思是某人如何, 用于询问某人的性格品质等。 What does sb. like? 指某人喜欢什，用于询问某人的喜好.What does sb. look like ? 是某人长什么样，用于询问某人的外貌.翻译：What is mother like?What does she like?What does your sister look like?Can you tell me _in the

7、 future?A how life will be like B how will life will be like C what life will be like D what will life be like4. Some people believe that humans could live on the planet Mars by the year 2100.believe通常不用于进行时态，名词形式是 belief.5. Our own planet, the Earth, is becoming more and more crowded and polluted b

8、ecause of the rapid increase in population.(1) more and more crowded, 越来越拥挤，其结构是比较级and比较级，意为越来越。 (2) polluted是形容词，意思是被污染的。动词形式是 pollute. 意思是污染。名词形式是 pollution，意思是污染, 污染物。(3) rapid是形容词，意思是快的, 迅速的，副词形式是 rapidly。 He made rapid progress in English. Our country is developing so rapidly that we can imagin

9、e what life in the future will be like.（4）increase.作及物动词。意思是，增，增长。后可跟名词。也可作不及物动词。 increase to意思是，增加到。 increase by 增加了. The population of this city will increase to 1.1million. They have increased the price of the vegetables by ten percent.6. Here is what life there could be like.l 完全倒装，又称为全部倒装，是指将句子

10、中的谓语全部置于主语之前。即Here位于句首，主语是名词时，用Here+谓语+主语结构。此结构通常只用于一般现在时和一般过去式。 Then began a bit wall between the two countries.于是两国之间开始了恶战。l 部分倒装又称半倒装，是指将谓语的一部分，如助动词或情态动词，提至主语之前，而谓语动词无变化。如果句中的谓语没有助动词或情态动词，主要需添加助动词 do/ does/ did。并将其置于主语之前。 Jim likes English. So does his brother.7. At present, our spacecraft are to

11、o slow to carry large numbers of passengers to Mars-it would take months.l large numbers of表示许多, 大量的。= a large number of. Number.前面可以加large or small等修士，以表示程度。l the number of是的数量。后跟可数名词复数，作主语时，谓语动词一般用单数。我们班学生的数量是50。这本书有60页。8. With the development of technology, by the year 2100, the journey might onl

12、y take about 20 minutes in spacecraft that travel at the speed of light!（1）Development.意思是，发育、成长、发展，进展是名词。the development of 的发展/成长l Develop.是动词，意思是发展开发，生长发育。l 动词后缀，变成名词。agree agreement improve improvement,move movementdevelopdevelopmentdevelopingdeveloped(2) Journey: 长途陆路拓展：trip：短途短期 tour :观光游玩 tra

13、vel:时长路远.（3）at the speed of 以速度at the price of 以价格 at a high price高价 at a low cost低成本. at full / high speed以全速高速,at ten degree centigrade 在十摄氏度. 9. However, the spacecraft would travel so fast that the journey to Mars might be quite uncomfortable. Many people would feel ill.（1）So that如此, 以至于， that引导

14、结果状语从句。 So是副词，常用来修饰形容词或副词。这个男孩跑得如此快，以至于我赶不上他.他气得说不出来一句话。注意：当名词前有Many、 much、 few、 little 等词修饰时，只能用so that.（2）uncomfortable, 形容词, 不舒适的。其中un是否定前缀，其反义词为舒适的，含否定前缀的单词，有unlucky, unknown, untidy, unusual, unfriendly, incorrect, impatient, impolite imperfect, illegal, irregular。（3）陈述句中如果含有否定意义前缀或后缀单词，整个句子仍视为

15、肯定。其反意疑问句，遵循前肯后否的原则。 Your younger brother felt unhappy, didnt he你弟弟不高兴不是吗？11.Moreover, scientists are not sure whether plants could grow on Mars. （1）be sure宾语从句，意思是确信，表示主句主语对宾语从句中所涉及的事物作出的判断。sure.反义词是unsure ，副词形式是 surely.We are not sure if he will make progress. This term. Im sure that you are right

16、.（2）be sure to do sth.必然会做某事。be sure to do.用于祈使句中，不表示判断，而表示对对方的要求，意思是务必要一定要。千万不要忘记（3）Be sure of /be sure about 确信，对有把握。12.Food would most probably be in the form of pills and would not be so tasty.(1) in the form of.以的形式，为固定短语。他以故事的形式把他的过去讲给我们听。(2) tasty形容词，美味的，可口的。13.Gravity could be another proble

17、m.（1）problem.多指有待解决的问题，特别是疑难问题，或令人疑惑的是人或情况。 solve the problem, deal with the problem.（2）question指相对广泛，指提问或回答的问题。 ask questions. answer the question.拓展：have problems (in) doing sth.或have problems with sth.做某事有困难。14. People would have to wear boots that are specially designed to prevent themselves fro

18、m floating off into space.(1) design sth. for sb. 为某人设计某物 be designed for sb. .(2) prevent sb. from doing sth.，阻止某人防止某人做某事。固定搭配，相当于stop sb. from doing sth. keep sb. from doing sth. 阻止某人做某事，其中from无论在处于状态还是在被动语态都不能省略。protect sth. from sth.保护不受伤害，from后接能带来伤害或损害。We must protect us from traffic accident.

19、 我们必须保护自己不受交通事故的危害。15Compared with life on the Earth, life on Mars would be better in some ways.(1) in some ways在一些方面, 从某种程度上In some ways，you are right.in a way / in one way / in some ways 在某种程度上；不完全地in the way 挡路in this way以这种方式by the way，顺便说一下on the way to在去什么的路上（2）compare with，把比较compare to，把比作，当

20、解释为“把与比较”时，与compare with用法相同莎士比亚把世界比作舞台。16Life on Mars would be interesting as well as challenging.（1）as well as, 也, 又, 不但而且。当as well as连接两个并列主语，主语是在意义上强调前者，谓语动词应与其前的主语保持一致。He as well as his friend likes going shopping，他和他的朋友一样喜欢购物.。（2）as well as还意为是和一样好，前一个as为副词，后一个as为连词或介词。Lin Tao speaks English a

21、s well as Jane. 林涛英语说得和吉姆一样好。( 3 ) Challenging，挑战性的。Challenge sb. to+（挑战事项）意思是向某人挑战。一、根据首字母提示或汉语提示填写单词。1. Im ready to do all those things which are more c_.2. After he was 60, his health was falling r_.3. The Internet is a worldwide computer n_.4. Her weight showed an i_ of 3kg in a month. She decid

22、ed to lose weight again.5. How many _ (乘客) can the bus hold each time?6. Can fish live without _ (氧气)?7. The Earth is one of the _ (行星) that travel around the sun.8. Look! A model ship is _ (漂浮) on the lake.一、单项填空( )1.(安徽中考)Mum,Ive signed for the box.Whats in it?Im not sure.Itbe a present from your

23、uncle.A.needB.mustC.mayD.will( )2.(烟台中考)Its dangerous to drive after drinking.Thats true.It can increase theof traffic accidents.A.advantageB.stressC.safetyD.risk( )3.(达州中考)of the land in that towncovered with trees and grass.A.Two fifth;isB.Two fifth;areC.Two fifths;isD.Two fifths;are( )4.(临沂中考)Exc

24、use me,could you please tell me from here to the airport? Sure.Its about 100 kilometres.A.how far it isB.how long it takesC.how far is itD.how long does it take( )5.(黄石中考)Jack,rememberoff the lights whenthe home.OK,I wont forget,Mum.A.turning;leavingB.to turn;leaveC.turning;leftD.to turn;leaving( )6

25、.(乌鲁木齐中考)Most of the villagers took part in the Dragon Boat races9:00 a.m.the morning of June 18.A.at;inB.at;onC.on;inD.on;on( )7.(滨州中考)As a teacher,I really feel worried to see so many studentsglasses.A.wearingB.dressingC.putting onD.being in( )8.(达州中考)kind of tea would you like?I love teahas a fru

26、ity taste.A.Which;whatB.What;whichC.Whose;thatD.What;who( )9.(乐山中考改编)Do you knownext Friday,Lily?If it doesnt rain,we will.A.if we will take a field tripB.will we take a field tripC.why we will take a field tripD.we will take a field trip( )10.(济南中考)Eric hurt his leg playing tennis yesterday.I hope

27、he will get better soon.A.I hope so tooB.Hope notC.I cant stand itD.You are wrong一、根据汉语完成句子。1. 你们地区人口增长得快吗?Is the population in your area_ _?2. 我家离学校10 公里远。My home is ten kilometers _ _ school.3. 我们同意他们的决定。We are _ _ with their decision.4. 我的包的款式和他的类似。The style of my bag is _ _ _ of his.5. 人类正在考虑移民去

28、别的星球?Are humans _ _ _ to another planet ?6. 政府正在努力改善民生。The government is _ _ _ improve peoples lives.7. 我相信他会满意的。I _ _ that he will be satisfied.二、将下列复合句改为简单句。1). We cant do it if you dont help us._2). The pianist began to learn to play the piano when he was four years old._3). Are you sure that the

29、y are interested in it?_二、单选1 -Food safety has become a social focus now.-Thats why laws are made to _ crimes on food.A recordB preventC divideD separate2. The farmers had to stop _ in the field _ the heavy rain.A working; becauseB to work; becauseC working; because ofD to work; because of3. -_ the

30、way, do you think this job has become easier than it used to be?- To be honest, it has turned out to be more difficult _ some ways.A In; onB By; onC By; inD In; by4. Although it is _ to wear a helmet for a long time, it can protect your head.A specialB uncomfortableC crowdedD unsure5. Mrs. Yang ofte

31、n makes _ cakes and biscuits for kids and kids like them very much.A strangeB tastyC awfulD polluted6. -What _ of high school students go to college?-About 70%.A percentageB numberC populationD temperature7. -Whats the most popular form of _ in this city?-Its hard to say. Maybe going to the movies i

32、s.A environmentB entertainmentC experimentD experience8. The Great Green Wall can _ the wind and sand from moving to the rich land in the south of China.A preventB protectC provideD promise9.I dont feel like _ now. I prefer to have a walk after supper.A walkB walkingC walksD to walk10. -What do you

33、think of the environment here?-Wonderful! _ of the land covered with trees and grass.A Two fifths; isB Two fifth; isC Two fifths; areD Two fifth; are11 - Are you willing to live on Mars one day?-_. It sounds exciting, but it still worries me.A .Of course I am.B Im not sure.C Why not?D Are you joking

34、?12. - The documentary A Bite of China is quite popular around China recently. How do you like it?-_.A I think soB Pretty goodC Its my pleasureD All right.单项填空(C)1.(安徽中考)Mum,Ive signed for the box.Whats in it?Im not sure.Itbe a present from your uncle.A.needB.mustC.mayD.will(D)2.(烟台中考)Its dangerous

35、to drive after drinking.Thats true.It can increase theof traffic accidents.A.advantageB.stressC.safetyD.risk(C)3.(达州中考)of the land in that towncovered with trees and grass.A.Two fifth;isB.Two fifth;areC.Two fifths;isD.Two fifths;are(A)4.(临沂中考)Excuse me,could you please tell me from here to the airpo

36、rt? Sure.Its about 100 kilometres.A.how far it isB.how long it takesC.how far is itD.how long does it take(D)5.(黄石中考)Jack,rememberoff the lights whenthe home.OK,I wont forget,Mum.A.turning;leavingB.to turn;leaveC.turning;leftD.to turn;leaving(B)6.(乌鲁木齐中考)Most of the villagers took part in the Dragon

37、 Boat races9:00 a.m.the morning of June 18.A.at;inB.at;onC.on;inD.on;on(A)7.(滨州中考)As a teacher,I really feel worried to see so many studentsglasses.A.wearingB.dressingC.putting onD.being in(B)8.(达州中考)kind of tea would you like?I love teahas a fruity taste.A.Which;whatB.What;whichC.Whose;thatD.What;w

38、ho(A)9.(乐山中考改编)Do you knownext Friday,Lily?If it doesnt rain,we will.A.if we will take a field tripB.will we take a field tripC.why we will take a field tripD.we will take a field trip(A)10.(济南中考)Eric hurt his leg playing tennis yesterday.I hope he will get better soon.A.I hope so tooB.Hope notC.I cant stand itD.You are wrong当堂练习：【答案】 1. challenging2. rapidly3. network4. increase5. passengers6. oxygen7. planets8. floating家庭作业【答案】 1. increasing rapidly2. away from3. in agreement4. similar to that5. thinking about moving6. working hard to7. am sure一单选BCCBBAB