必修3 unit2 情态动词Ⅱ课件.ppt-(纯ppt课件,无音视频素材)

1、Modal Verb II Modal Verb II Unit 2 GrammarUnit 2 Grammar情态动词 can/could may/might will/would should/shall must/mustntRevision 1.She think he _(可能可能)be here.But I think he _(不可能）不可能）be here，for he has gone to shanghai.2.You _ come here.(你不准来这儿你不准来这儿)without permission.3.You _ take care of.(应该去照顾应该去照顾)

2、your sister.4._(可以可以)have a look at your skirt?Revisionmay/mightcant/couldntshould Canmustnt 情态动词情态动词+have done这是历年高考热点之一，这是历年高考热点之一，可表示可表示“推测、责备、怀疑推测、责备、怀疑”等多种意义。等多种意义。课堂演练课堂演练一、表示对过去事情的推测或估计一、表示对过去事情的推测或估计1.must have done “一定已经做了某事一定已经做了某事”eg:The ground is rather wet,so it must have rained last ni

3、ght.2.may/might have done “可能已经做了某事可能已经做了某事”eg:Tom may have gone to shanghai.3.cant/couldnt have done“不可能已经做了某事不可能已经做了某事”eg:The ground is very dry,so it cant have rained last night1.Where is my pen?I _ it.A.might lose B.would have lost C.should have lost D.must have lost2.I didnt hear the phone.I _

4、asleep.A.must be B.must have been C.should be D.should have been3.There were already 5 people in the car,but they managed to take me as well.It_ a comfortable journey.A.cant be B.shouldnt be C.couldnt have been D.mustnt have been课堂练兵课堂练兵DBC4.I searched for my wallet and it wasnt there.I thought Iit

5、at home.A.left B.have left C.might have left D.can have leftC5.-There were already five people in the car but they managed to take me as well.-It _a comfortable journey.()A.cant be B.mustnt have been C.shouldnt be D.couldnt have beenD二、表示对过去所发生事情的遗憾或责备二、表示对过去所发生事情的遗憾或责备1.should/ought to have done“本该

6、做而没做本该做而没做”eg:I really regretted wasting the hours when I should have studied hard,but it was too late.2.shouldnt/oughtnt to have done “不应该该做的事却做了不应该该做的事却做了”eg:Im very sorry for the words I shouldnt have said to you at that moment.3.could have done“本能够做的事却没做本能够做的事却没做”eg:He could have worked out the

7、problem.4.neednt have done“没必做的事却做了没必做的事却做了”eg:He neednt have come.他本没有必要来（实他本没有必要来（实 际却来了）际却来了）1.-My goodness!Ive just missed the train.-Thats too bad.I am sure you_ it,if you had hurried.A.could have caught B.had caughtC.would catch D.could catch 2.Look!What youve done!You more careful.A.may be B.

8、had to C.should have been D.would be 3.He the work yesterday,but he didnt.A.must have finished B.need have finished C.finished D.should have finished 4.He did not pass the examination.As a good student,he.A.mustnt have failed B.may not have failed C.neednt have failed D.shouldnt have failed 5.Your h

9、ome is not far from your school,so you _ in such a hurry.A.neednt have left B.should have left C.must have left D.shouldnt have left should/ought to must/have to need/dare You ought to(should)follow your teachers advice.1.should 和和ought to 都为都为“应该应该”的意思，可的意思，可用于各种人称。用于各种人称。(相同点）相同点）ought toshould 2.

10、ought to 的语气稍重些；表客观事情时，一的语气稍重些；表客观事情时，一般应用般应用ought to;强调主观看法时，强调主观看法时，用用should。如：如：1.Titanic should be a good movie.2.We know if we keep at it we ought to succeed.2.must和和have to must的用法的用法 1）表示主观的义务和必要）表示主观的义务和必要,主要用于肯定句和疑主要用于肯定句和疑问句问句,意思为意思为“必须必须”；由由must 引起的疑问句，肯定回答要用引起的疑问句，肯定回答要用must或或have to,否定回

11、答要用否定回答要用neednt或或dont have to,意思是意思是“不必不必”；如：；如：Must I finish the task right now?Yes,you must./Yes,you have to.(No,you neednt./No,you dont have to.不，不必。不，不必。)have to 的用法的用法 1）must表示一种主观的需要表示一种主观的需要;而而have to 表示表示一种客观的需要，意思是一种客观的需要，意思是“不得不不得不”。如：如：I have to attend an important meeting this afternoon.

12、Mother is out,so I have to look after the shop.2）have to 的否定形式是的否定形式是dont have to,相当相当于于neednt。如：。如：They dont have to buy a computer at present.1.作为情态动词用，常用在否定句和疑问句中。Dare(need)+S+VS+darent(neednt)+VI darent walk through the forest at night.Dare you walk through the forest at night?You neednt return

13、the book now.Need he go yesterday?可兼做行为动词的情态动词：可兼做行为动词的情态动词：need、dare 2.Sth(sb)need(want,request)+doing/to be done The house needs cleaning/to be cleaned The boy needs sending to the hospital at once.1.The boss has given everyone special holiday,so we _ go to work tomorrow.(2007 上海春卷上海春卷)A.cant B.mu

14、stnt C.neednt D.shouldnt2.What do you think we can do for our aged parents?You _ do anything except to be with them and be yourself.(2007 重庆卷重庆卷)A.dont have to B.oughtnt to C.mustnt D.cant3.You _ be hungry already you had lunch only two hours ago!(2008 浙江卷浙江卷)A.wouldnt B.cant C.mustnt D.neednt4.What

15、 sort of house do you want to have?Something big?Well,it _ be big-thats not important.(2008 陕西卷陕西卷)A.mustnt B.neednt C.cant D.wont5.What do you mean,there are only ten tickets?There _ be twelve.(2009 全国全国I卷卷)A.should B.would C.will D.shall6.Hi,Tom.Any idea where Jane is?She _ in the classroom.I saw

16、her there just now.(2009 重庆卷重庆卷)A.shall be B.should have been C.must be D.might have been 7.You_ buy a gift,but you can if you want to.(2010 湖南卷湖南卷)A.must B.mustnt C.have to D.dont have to8.Mark _ have hurried.After driving at top speed,he arrived half an hour early.(2010 天津卷天津卷)A.neednt B.wouldnt C

17、.mustnt D.couldnt9.Sorry,Professor Smith.I didnt finish the assignment yesterday.Oh,you _ have done it as yesterday was the deadline.(2010 上海卷上海卷)A.must B.mustnt C.should D.shouldnt10.You _ park here!Its an emergency exit.(2010 重庆卷重庆卷)A.wouldnt B.neednt C.couldnt D.mustnt 1.I _(得接受得接受)your suggestio

18、n.2.You _(你不能来这儿你不能来这儿)without permission.3.You _ (应当去照顾应当去照顾)your sister.4.I think you _(应当去应当去 看看)the doctor.汉译英汉译英have to acceptmustnt come hereshould take care ofought to go to see5.The teacher told the students that they _ (不应该在课堂上沉默不语不应该在课堂上沉默不语)all the time.6.You _(就得不到就得不到 我的支持我的支持)if you do

19、 such a thing.7.I waited for the train for two hours at the station this morning.Well,you _ (本来没有必要去那么早的本来没有必要去那么早的).8.“You _(你千万不你千万不 要再喝酒了要再喝酒了),”the doctor warned him.mustnt drink any moreought not to/shouldnt keep silent in classshall not get my supportneednt have set off so early5.The teacher t

20、old the students that they _ (不应该在课堂上沉默不语不应该在课堂上沉默不语)all the time.6.You _(就得不到就得不到 我的支持我的支持)if you do such a thing.7.I waited for the train for two hours at the station this morning.Well,you _ (本来没有必要去那么早的本来没有必要去那么早的).8.“You _(你千万不你千万不 要再喝酒了要再喝酒了),”the doctor warned him.mustnt drink any moreought not to/shouldnt keep silent in classshall not get my supportneednt have set off so early