外研版必修5单元2知识点.doc

Step1：Important Phrases and Sentences1.be worth doing值得做（主动形式表被动）worth adj.“值得的”“值钱”常用结构“be worth+钱”意为“值钱”“be worth+名词”意为“值得”拓展(1) worthy adj.“值得的”“应得到的”，可作表语。当意为“有价值的、值得尊敬的”，可作定语。be worthy of sth.值得be worthy of being done.值得被做be worthy to be done.值得去被做(2) worthwhile adj.“值得（花时间/精力/金钱）的”，可作表语和定语。It is worthwhile doing.值得做It is worthwhile to do.值得去做例句This second-hand car is worth $2000 at the most.这辆二手车最多值2000美元。The school has educated many worthy people.这所学校培养出了许多值得尊敬的人。It is worthwhile to have/having a try again.再尝试一次是值得的。温馨提示如果表达“很值得”要用well修饰worth,而不能用very/very much/quite等。This book is well worth reading.这本书很值得读。练习The book I bought for my son is a one which is well reading many times.A.worthwhile;worthy B.worthy;worthC.worthwhile;worth D.worth;worthy2.in bad condition状况、状态不好in good condition状况很好其中condition为不可数名词，意为“状态，情况”。拓展condition n.条件；（常用复数形式）情形，环境Ability is one of the important conditions of success.能力是成功的重要条件之一。If everyone went for peace and against war,the world conditions would be better now.如果人人都追求和平，反对战争，那么现在的世界环境将会更好。固定搭配：on no condition决不（位于句首时，句子需要用部分倒装形式）on condition that假如练习-Ill join the music club Mary is in the club,too.-You mean if Mary joins in the club,youll do,too.A.in case B.so that C.now that D.on condition that3.on average平均On average we receive ten letters each day.我们平均每天收到10封信。He smokes two cigarettes a day on average.他平均每天抽两只烟。知识链接average n.平均数，平均水平 adj. 平均的，一般的above (the) average高于平均水平below (the) average低于平均水平up to (the) average达到平均水平the average age/temperature平均年龄/温度the average of.的平均数练习-You must get a high income by doing that kind of job.-Oh,my incomes rather variable,but I earn 100 yuan a day .A.on average B.in commonC.in particular D.in all4.Although there is not a lot of traffic,on average,one vehicle comes off the road every two weeks.尽管这条路上的交通量不大，但是平均每两周就有一辆车冲出公路，掉下悬崖。Although”尽管，虽然”，引导让步状语从句。Although he was ill,he still worked hard.尽管他病了，他仍然努力工作。辨析although,though与as易混词引导让步状语从句的用法其他用法although引导的让步状语从句多位于主句前在一般情况下与though可以互换使用，但although较正式though引导的让步状语从句中可倒装，也可不倒装though也可为副词，表示“可是，不过，然而”as引导让步状语从句中须倒装，将表语，状语或动词原形置于as之前此外，as引导时间状语从句，原因状语从句等。Although/Though he is very old,(yet)he is quite strong.他虽然年纪大了，身体还很健壮。Hard as/though he works,he makes little progress.=Though he works hard,he makes little progress.尽管他学习很努力，但几乎没取得什么进步。温馨提示although 不能和but连用，因为although是从属连词，而but是并列连词，两个连词不能同时用。although可以和yet连用。练习 ，he often feels sympathy the poor.A.A wealthy man though he is; toB.Wealthy man though he is; forC.A wealthy man although he is; toD.Wealthy man although he is; for5.The drop is so great that anyone inside the vehicle is lucky to survive.悬崖落差如此之大，在掉下去的车里任何一个能幸存下来的乘客都是幸运的。句法分析本句为so.that引导的结果状语从句。He runs so fast that nobody can catch up with him.他跑得非常快，没有人能追上他。He had so many falls that he was black and blue all over.他摔了很多跤，以至于全身上下青一块，紫一块的。拓展Such.that如此以至于He is such a clever boy that everybody likes him.他是一个如此聪明的男孩，以至于大家都非常喜欢他。（such后面接名词单、复数或不可数名词）归纳搭配(1)so +adj./adv.+that.so+adj.(+a/an)+n.+that.so many/few/much/little+n.+that(3) such(+a/an)(+adj.)+n.+that.such+adj.+不可数名词such+adj.+可数名词复数练习We made up our minds to study hard we could be admitted into the university.A.in order to B.all that C.so that D.so as toStep2： Grammar一般现在时：概念：经常、反复发生的动作或行为及现在的某种状况。时间状语：always, usually, often, sometimes, every week (day, year, month), once a week, on Sundays, etc.基本结构：be动词；行为动词否定形式：am/is/are+not;此时态的谓语动词若为行为动词，则在其前加dont,如主语为第三人称单数，则用doesnt，同时还原行为动词。一般疑问句：把be动词放于句首；用助动词do提问，如主语为第三人称单数，则用does，同时，还原行为动词。现在进行时：概念：表示现阶段或说话时正在进行的动作及行为。时间状语：now, at this time, these days, etc.基本结构：am/is/are+doing否定形式：am/is/are+not+doing.一般疑问句：把be动词放于句首。( ) 1. Father usually _ his newspaper after dinner.A. read B. reads C. reading D. is reading( ) 2. The Blacks often _ to the cinema on Saturday evenings.A. go B. goes C. is going D. are going( ) 3.Look! The boy _ with his mother in the pool.A. is swimming B. is swiming C. are swimming D. are swiming ( ) 4.- What is Tom doing in the classroom? - He _ something on the blackboard.A. draws B. draw C. is drawing D. are drawing.( ) 5.Old Tom usually _ up at six and _ sports in the garden.A. gets, does B. gets, does C. get, does D. gets, do( ) 6. Its ten oclock and Jack _ still(仍然) _ his homework.A. is, do B. is, doing C. are, do D. are, doing( ) 7. The waiters _ to work at five every morning.A. start B. starts C. starting D. are starting( ) 8.I _ a letter, so I cant go out with you.A. is writing B. am writing C. am writeing D. am writting ( )9.A hundred days _ quite a long time.A. is B. are C. have D. has( )10. -_ late for the meeting next time. Sorry, I wont.A. Dont B. Dont be C. Wont be D. Be not( )11. My mother _ noodles, but my father _.A. likes, doesnt B. dont like, do C. likes, didnt D. didnt like, do( )12. The picture _ nice.A. looks B. is looked C. look D. is looking( )13. The students will go to the Summer Palace if it _ tomorrow.A. dont rain B. doesnt rain C. wont rain D. isnt rain( )14. We are always ready _ others.A. to helping B. to help C. help D. helping( )15. I often hear her _ about the boy.A. talking B. talk C. to talk D. talked( )16. Hes already a little weak in Chinese, _ he ?A. is B. isnt C. has D. hasnt ( )17.Potatoes are _ in the field by the farmers.A. grow B. growing C. grown D. grew( )18. Does she have a watch? Yes, she _.A. have B. do C. has D. does( )19. She _ English very much now.A. is liking B. likes C. liked D. is teaching( )20. She has no paper to _ . Why not give her some?A. write B. be writing C. write on D. write in( )21. Does Mr Know-all know _ keys?A. to make B. how to make C. how make D. making( )22. Does your mother _ English now?A. teaches B. teach C. taught D. is teaching ( )23. Jack usually _ mistakes last term. But this term he does better.A. makes B. made C. does D. did( )24. The boy is too young, please _ carefully.A. look after him B. look him after C. look at him D. look him at( )25. She _ you to come to my birthday party.A. hopes B. wishes C. want D. lets( )26. -Where is Frank now? - He _ his bike in the yard.A. fixes up B. fixing up C. is fixing up D. fixed( )27. Bob often _ his mother with the housework on Sundays.A. help B. helping C. helps D. helped( )28. The students will go to the Summer Palace if it _ tomorrow.A. dont rain B. doesnt rain C. wont rain D. isnt rain( )29. If it _ tomorrow, I will go by car.A. rain B. will rain C. rains D. would rain( )30. -What a nice garden! She _ it every day.A. is cleaning B. has cleaned C. cleans D. clean( )31. -Where is Peter? - He _ his homework in the room.A. is doing B. does C. did D. do( )32. The teacher told us that light _ much faster than sound.A. travels B. traveled C. was D. will be( )33.