1、英語廣東省普通高中學業(yè)水平考試GUANGDONGSHENGPUTONGGAOZHONGXUEYESHUIPINGKAOSHI 第二部分語法專題第六章 情態(tài)動詞廣東省普通高中學業(yè)水平考試 英語配套課件情態(tài)動詞主要用來表示說話人的看法、態(tài)度等。情態(tài)動詞有以下幾個特點：(1)各個情態(tài)動詞自身都有一定的詞義；(2)情態(tài)動詞不能在句中獨立擔當謂語；(3)情態(tài)動詞在句中一般不受人稱、性、數(shù)變化的影響(have to和be able to除外)；(4)情態(tài)動詞后接的不定式(除ought to， be able to， have to外)都不帶to，即接動詞原形。常用的情態(tài)動詞的用法如下：1. can和cou

2、ld(1) Jackie can speak English.杰基會說英語。(表能力)(2) Can the news be true？ 這消息可能是真的嗎。(可能性) It cant be true.不可能是真的。(可能性)(3) Can I smoke in the room？ 我可以在這房間吸煙嗎。(表允許)(4) Can you come tomorrow？明天你能來嗎？(表示客觀條件“可以”)(5) I couldnt speak English before.我以前不會說英語。(過去的能力)(6) I think you could be right.我想你可能是對的。(表示可能性

3、) (7)Could you please pass me the book？你能把那本書遞給我嗎？(表示請求)2. may 和might的用法(1) May/Might I come in？我可以進來嗎？(表示請求和允許)(2) He may/might be very busy.他可能很忙。(表示可能性)3. will 和 would的用法(1) Will you please help me？你愿意幫我嗎？(表示意愿)(2) Sometimes，the old man would just sit there all afternoon.有時，那個老人就一下午坐在那兒。(表示過去的習慣)

4、4.shall 和should的用法(1) What shall we do this morning？我們今天早上要干什么？(shall用于第一人稱表示征求對方意愿)(2) You shall see the lovely cat soon.你不久就能再見到這只可愛的貓。(用于第二、三人稱表示給對方命令、警告和允諾)(3) You should read English aloud every morning.你應該每天早晨朗讀英語。(表示建議)5. must 和 cant的用法在表示推測時，must的否定式用cant，而不是mustnt。(1) Its 6：00 p.m.Tony must

5、 be on his way home.現(xiàn)在是下午6點了。托尼肯定是在回家的路上了。(表示肯定推測)(2) Mike cant be in the office now.邁克現(xiàn)在不可能在辦公室。(表示否定猜測)6.ought to 的用法ought to 的用法和should 一樣，表示“應該”的意思。否定式為ought not to。例如：(1)You ought to study hard if you want to catch up with others.如果你想趕上別人，就應該努力學習。(2)The little boy ought not to be paid more atte

6、ntion because he can take good care of himself.那個小男孩不應該被過分關注，因為他能很好地照顧自己。7.have to和must的用法have to是表示“客觀上要求而不得不做”的意思，否定式是dont have to do。must則是表示“主觀上要求要做”的意思，否定式有兩種，一種是mustnt，意思是“禁止”；另一種是neednt，意思是“不需”。例如：(1)I am sorry I cant go with you because I have to look after my mother. Shes ill.對不起，我不能跟你出去，因為

7、我不得不照顧我母親。她生病了。(2)May I leave without permission？我可以不經(jīng)過批準就離開嗎？No，you mustnt.不行，(沒有允許)不準離開。練習一：用適當?shù)那閼B(tài)動詞填空1.Though Wang Fang is not very good at math，she speak English quite well.2. I have a look at your watch？3.I like to have some milk for breakfast.4.You get up early if you want to catch the early b

8、us.5.You have worked hard all day. You be tired.6.The light is off. Mr. Smith not be at the office.7. Must I hand in my exercise book today？ Yes，you .8.Helen play the guitar very well.9. Must I finish the work today？ No，you .You finish it tomorrow.10.He said he not come.canMay/Might/Can/Couldwouldsh

9、ould/ought to/have tomustcanmustcanneedntcancould練習二：語法填空 A fox and a horse live in a forest. The horse lives under a tree and the fox in a hole in the earth near the tree. One day the fox pay a visit to his cousin and he hopes he meet his grandmother there. He misses her very much. Before leaving t

10、he fox tells his neighbour that if he wants to arrive at his cousins home earlier，he cross a river because he wants to spend (much) time with his cousin. The horse is worried and says， “You be washed away by the water of the river since you are so small. You must find a bridge.” But the fox doesnt listen. he reaches the bank of the river， the fox finds there is a big flood coming. Looking at the angry river， the poor fox feels scared， saying to (he)， “Oh， my god， it kill me if I crossed the river.” The fox has no chance but to walk farther to find a bridge. (fortunate)， when he