八年级英语Newspapers Language课件1.ppt

1、Unit 1 Newspapers（language-情态动词）情态动词情态动词 情态动词本身有一定的含义,但不能单独作为句子的谓语,必须后面紧跟动词原形情态动词没有人称和数的变化能，能，会会 表示表示“能力能力”can/could(现在时过去时）现在时过去时）I can sing English songs.I could sing English songs at the age of five.2.可以可以表表“许可许可”常用于口语之中常用于口语之中=may.a.You can borrow my pen if you havent any.=You may borrow my pen

2、if you havent any.b.-Can I use your eraser?-Yes,you can.No,you cant.3.可能可能 can be/cant be表表“猜测猜测”用于用于疑问句或否定句疑问句或否定句之中之中.a.-Can the story be true?-No,it cant be.b.He cant be at home now,is he?1.可以可以2.表表“许可许可”-May I come in?-Yes,please.-May I take photos here?-Yes,you may./can-No,you mustnt.2.可能可能 may

3、 be表表“推测推测”.常用于常用于肯定句肯定句中中.-Where is Tom?-He may be in the reading room,for he likes reading there.I may be a teacher when I grow up.=Maybe I will be a teacher when I grow up.1.一定，必须一定，必须-Must we hand in our exercises this afternoon?-Yes,you must.-No,you neednt./dont have to.2.肯定肯定 must be/mustnt be

4、表肯定的猜测表肯定的猜测He may be a thief.(可能）可能）He must be a thief.（一定）一定）He must be a teacher,isnt he?-This story must be true,for I read it in Shenzhen Daily.-Whats he?-He must be a scientist,for he knows much about science.must/may be+名词名词/形容词形容词/介词短语介词短语 -Where is Ken?-He must be in the library.I saw him t

5、here just now.表示猜测表示猜测 may be(可能是）可能是）must be(一定是一定是)mustnt be(不一定是）不一定是）cant be(一定不是）一定不是）4.表示需要 need(1)need 作作行为动词行为动词这时这时 need 就象其他动词一样就象其他动词一样,有第三人有第三人称单数称单数needs,也有过去式也有过去式 needed1.need to do sthHe needs to buy a pair of shoes.Does he need to buy a pair of shoes?He doesnt need to buy a pair of

6、shoes.What does he need to buy?exercise:They needed our help.2.need sth to do sth I need a bike to go to school.3.need sth She needs a lot of money.She doesnt need a lot of money4 sth.need doing=sth need to be doneMy hair needs washing.My hair needs to be washed.You neednt return the book now.Need h

7、e go yesterday?-Yes,he must./No,he neednt.（2）Need作作情态动词情态动词时，时，过去式也是过去式也是need,多用于否定或疑问结构，一般不多用于否定或疑问结构，一般不用于肯定句，表示用于肯定句，表示“必要必要”。没有必要没有必要neednt=dont need to=dont have to May?Must?Need?No,sb.cant/may not/mustnt.No,sb.neednt/dont have to.Yes,sb.must.No,sb.neednt.He _ money now.(need)_ she _ to bring t

8、he book here?(need)They _ go to work that day.(not need)The boy _ any help.(not need)needsDoesneedneednt/didnt need todoesnt need5.表示责任表示责任 should,ought to(应该应该)You _ work hard at all your subjects.=You _ _ work hard at all you subjects.shouldoughtshouldnt,oughtnt toto-Ought you to obey the rules?-Y

9、es,you ought to.-No,you ought not to.6.Would作为情态动词，多于请求。作为情态动词，多于请求。Would you please sing us a song?Would you like a cup of tea?Would you like to join us for dinner?Would you mind our having a party in this room?=Would you mind if we have a party in this room?I would like to do sth=Id like to do sth

10、I would not like to do sthI would rather do sth=Id rather do sthId rather not do sthLets do the exercises Lets do the exercises 1.What _I do for you,Madam?A.shall B.can C.may D.will 2._climb that tall tree?A.Do you need B.Do you need C.Need you D.Need you toBC3.-_I stop here,sir?-No,Go on to the nex

11、t paragraph,please.A.Will B.May C.Could D.Ought4.Our teachers are at work.You _make so much noiseA.mustnt B.doesnt C.neednt D.isnt BA5.Im afraid it _rain tonight.A.can B.could C.may be D.might 6.-Need I start from the beginning?-Yes,you _ A.need B.can C.may D.must DD7.-Must I write down these words

12、now?-No,you _A.neednt B.mustnt C.may not D.cant8.Some warm-hearted animals _hibernate(冬眠冬眠)A.neednt B.does not need to C.neednt to D.dont need AA9.-Look,it _be Lao Wang.-No,it _be him,for he has gone to Shanghai.A.may;mustnt B.B.must;may C.C.must;cant D.D.can;may not 10.I _like someone to take me to

13、 the theatre A.will B.may C.would D.shall CC11.-I cant find Tom anywhere in the office.-Where _he have gone?A.must B.can C.should D.need 12.We _die without air or waterA.will B.shall C.should D.would BA13.This pen looks like mine,yet it isnt.Whose _it be?A.must B.can C.would D.will 14._I go and apol

14、ogize to my teacher for my mistake?A.Should B.Need C.Can D.May 15.“_he open the door?”A.Shall B.Will C.Can D.Would B AB16.Parents must take good care of their children,_they?A.mustnt B.dont C.neednt D.arent 17-_I get there on time today?-No,you neednt A.Can B.May C.Must D.Should C C18.A teacher _do

15、every exercise,but a pupil must.A.may not B.neednt B.C.cant D.mustnt 19-Will you please give her a message when you see her?-Yes,I _A.shall B.will B.C.would D.should BB20.-Would you come back later next time?-No,I _A.shant B.shouldnt C.wont D.mustnt 21.-Must we finish copying all these homework this

16、 evening?-No,you _A.mustnt B.havent C.not have to D.dont have to CD22.-Could I borrow your dictionary?-Yes,of course you _.A.might B.will C.can D.should23.Peter _ come with us tonight,but he isnt very sure yet.A.must B.can C.may D.willCC24.-Shall I tell John about it?-No,you _.Ive told him already.A.neednt B.wouldnt C.mustnt25.-May I use your pen?-Im afraid you_.I am using it now.A.dont B.neednt C.cant26.-Must I finish my homework now?-No,you _.A.mustnt B.cant C.shouldnt D.dont have toACD