â
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1.Can /could
1)表è½åï¼æâè½ââä¼ââè½å¤âçææ
Can you drive a car ? -----yes ,I can No, I canât
2) 表å¾æ±è®¸å¯ï¼æ为âå¯ä»¥â¦â¦.?â
Can I use your bike ? æå¯ä»¥â¦â¦? (=may, ä½æ²¡æmayæ£å¼)
3)表å¯è½æ§ï¼å¸¸ç¨äºå¦å®å¥ï¼çé®å¥
Can it be true ?
Today is Sunday. He canât be at school. (è¿å»å¼couldæ¯canæ´å å§å©)2.May /might
1)表许å¯æå¾æ±å¯¹æ¹ç许å¯ï¼æâå¯ä»¥âçææ
You may go now
May I use your computer ?
注ï¼è¿å»å¼might 表示çè¯æ°æ´å å§å©ï¼å®¢æ°
Might I use your pen for a while ?
åç以may å¼å¤´ççé®å¥æå¦ä¸è¡¨è¾¾æ³ï¼
May I smoke here ?
---------Yes , you may. No, you canât.
---------Yes, please. No, you mustnât
No, youâd better not.
2)表çæµï¼é常åªç¨äºéè¿°å¥ã
You may be right.
å¨å£è¯ä¸can å¯ä»¥ä»£æ¿may 表示许å¯ï¼ä½canè¾é便ï¼may æ´æ£å¼
Can I use your bike ï¼Johnï¼
May I have a look at your license pleaseï¼sir ï¼1.Must
表ä¹å¡ï¼âå¿
é¡»â
You must talk to them about their study.
å¨å¦å®ç»æä¸ï¼è¡¨ä¸è®¸ï¼ç¦æ¢
You mustnât smoke here.
注æmust çåç
Must I clean the dining room at once ?
-----Yes, you must .
------No, you neednât .
------No, you donât have to .
3)表åå®ç建议
You must come and see us as soon as you get to shanghai.
3)表æ¨æµï¼æå«æå¾å¤§çå¯è½æ§
He must be ill .He looks so pale .4.Have to
表âä¸å¾ä¸âï¼å¼ºè°âå¤çååï¼ä¸å¾å·²è为ä¹â
Have to çå¦å®å¼è¡¨âä¸éè¦â mustnât表âä¸å
许â
You donât have to go there .
You mustnât go there .5. Need /Dare
1ï¼need 表示âéè¦ï¼å¿
é¡»âï¼ä½æ
æå¨è¯æ¶ï¼ä»
ç¨å¨å¦å®å¥åçé®å¥ä¸ï¼å¨è¯å®å¥ä¸ä¸è¬ç¨must , have to , ought to , should 代æ¿
You neednât worry
Need you go ?
No , I neednât .
Yes I must.
2ï¼dareä½æ
æå¨è¯æ¶ï¼ä¸»è¦ç¨äºçé®å¥ï¼å¦å®å¥åæ¡ä»¶ä»å¥ä¸ï¼ä¸è¬ä¸ç¨å¨è¯å®å¥ä¸ã
How dare you say Iâm unfair ?
He darenât speak English before such a crowd , dare he ?
3) dareåneed 常ç¨ä½å®ä¹å¨è¯ï¼ææ¶æï¼äººç§°åæ°çååãæä¸åçæ¯ï¼ä½å®ä¹å¨è¯æ¶ï¼å¨è¯å®å¥ä¸ï¼dareåé¢é常æ¥å¸¦to çä¸å®å¼ï¼å¨å¦å®å¥åçé®ä¸ï¼dareåé¢å¯æ¥å¸¦to æä¸å¸¦toçä¸å®å¼ã
I dare to swim across this river .
He does not dare (to) answer .
Donât you dare (to) touch it !
He needs to finish it this evening . 6. Will / Would
Will 1ï¼è¡¨ææ¿
I will help you .
2)ç¨äºç¬¬äºäººç§°å¾æ±æè§
Will you have some more wine ?
3)ç¨äºç¬¬ä¸äººç§°è¡¨æ¨æµ
-------Somebody is coming upstairs
-------That will be Mary.
4)表å°æ¥æç°å¨çä¹ æ¯
He will come this afternoon
The old man will sit by the window for hours.
Would 1) 表è¿å»çææ¿
Iâd like to see Mr. Smith
2)表è¿å»çä¹ æ¯
When I was a child , we would get up early and go climbing .
3)表å¾æ±æè§ï¼è¯æ°æ¯will å§å©
Would you mind my smoking here ?7. Shall /Should
Shall 1)ç¨äºç¬¬ä¸ï¼ç¬¬ä¸äººç§°ï¼è¡¨å¾æ±æè§æ建议
Shall we go out for lunch ?
2) ç¨äºç¬¬äºï¼ç¬¬ä¸äººç§°éè¿°å¥ï¼è¡¨ç¤ºä¸ç§å¼ºççææ
ï¼å¦å½ä»¤ï¼è¦åï¼ç¦æ¢ï¼å¨èï¼å
诺çè¯æ°
If you dare do that , you shall be punished .
3) 表示è§ç« ï¼æ示ï¼é¢è¨ç
All shall die
Should 1ï¼è¡¨ç¤ºååï¼ä¹å¡ï¼å»ºè®®ï¼å½ä»¤ï¼å
¶åä¹è¯æ¯ought to ; å¨çé®å¥ä¸ï¼é常ç¨should代æ¿ought to .
We should learn some English .
You should go to class right away .
Should I open the window ?
Should çå«ä¹è¾å¤ï¼ç¨æ³è¾æ´»ï¼ç°ä»ç»ä¸ç§ç¹æ®ç¨æ³
I should think it would be better to try it again . ï¼æåæ¯è®¤ä¸ºæ好åè¯ä¸è¯ï¼
You are mistaken , I should say . (ä¾æçä½ æ¯æéäº)
I should advise you not to do that . ï¼æåæ¯åä½ å«è¿æ ·åï¼
ä»ä»¥ä¸ä¾å¥å¯ä»¥çåºï¼æ
æå¨è¯shouldç¨äºç¬¬ä¸äººç§°æ¶å¯ä»¥è¡¨ç¤ºè¯´è¯äººçä¸ç§è°¦éï¼å®¢æ°ï¼å§å©çè¯æ°
Shouldè¿å¯ä»¥ç¨å¨ifå¼å¯¼çæ¡ä»¶ä»å¥ï¼è¡¨ç¤ºä¸ä»¶äºå¬èµ·æ¥å¯è½æ§å¾å°ï¼ä½ä¹ä¸æ¯å®å
¨æ²¡æå¯è½ï¼ç¸å½äºâä¸ä¸âçææã ä»å¥è°è¯ç±shouldå å¨è¯åå½¢ææï¼ä¸»å¥è°è¯å´ä¸ä¸å®ç¨èæè¯æ°
Ask her to ring me up if you should see her (ä½ ä¸ä¸è§å°å¥¹ï¼è¯·è®©å¥¹ç»ææ个çµè¯)
If you should change your mind , please let us know . ï¼ ä¸ä¸ä½ æ¹å主æï¼è¯·éç¥æ们ï¼
`should I (if I should ) be free tomorrow I will come . ï¼ä¸ä¸ææ天ææ¶é´ï¼æå°±æ¥ãï¼
æ¤å¤ï¼Why (or How)+ should ç»æ表示说è¯äººå¯¹æäºä¸è½ç解ï¼æå°æå¤ï¼èµå¹ï¼æ¤æãæå¼çææ
ï¼æ为âç«ä¼â
Why should you be so late today ? ï¼ä½ ä»å¤©æä¹æ¥å¾è¿ä¹æï¼ï¼
--------Where is Betty living ? ï¼è´èä½å¨åªéï¼ï¼
------How I should know ? ï¼ææä¹ä¼ç¥éå¢ï¼ï¼
I donât know why you should think that I did it .
(æççä¸ç¥éä½ åä»ä¹è®¤ä¸ºè¿ä»¶äºæ¯æå¹²ç)
2)should 表示å
诺
It should be ready at noon .
表示æ¨æµæå¯è½
They should finish it by now .â
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æå¨è¯è¡¨âæ¨æµâçç¨æ³
1)æ
æå¨è¯+å¨è¯åå½¢ --------表示对ç°å¨äºæ
çæ¨æµ
2)æ
æå¨è¯+ have done ------表示对è¿å»ç¶åµçæ¨æµåå¤å®
å
·ä½ç¨æ³å¦ä¸ï¼
must have done ç¨å¨è¯å®å¥ä¸ï¼è¡¨ç¤ºå¯¹è¿å»ç¶åµçè¯å®æ§æ¨æµï¼æ为âè¿å»ä¸å®å·²ç»åäºæäºâã
can have done ç¨å¨å¦å®åçé®å¥ä¸ï¼è¡¨ç¤ºå¯¹è¿å»ç¶åµçå¦å®æçé®æ§æ¨æµï¼æ为âè¿å»ä¸å¯è½åæäºï¼è¿å»åäºæäºåï¼â
could have done 表示âè¿å»å¯è½å·²ç»åäºæäºâæè
表示âè¿å»æ¬æ¥å¯ä»¥åæäºï¼å´æ²¡æåâã
may/might have done ç¨å¨è¯å®å¥æå¦å®å¥ä¸ï¼è¡¨ç¤ºä¸ç¡®å®çæ¨æµï¼æ为âè¿å»å¯è½ï¼ä¹è®¸åäºæäºâã
neednât have done 表示âè¿å»åäºæ¬æ¥ä¸å¿
åçäºæ
â
should /ought to have done ç¨å¨è¯å®å¥ä¸ï¼è¡¨ç¤ºâè¿å»æ¬è¯¥åæäºï¼å´æ²¡æåï¼âç¨å¨å¦å®å¥ä¸ï¼è¡¨ç¤ºâè¿å»ä¸è¯¥åæäºï¼å´åäºâã
E g 1 . I -----have been more than six years old when the accident happened .
A. shouldnât B couldnât C mustnât D neednât
2. He -----have completed his work , otherwise, he wouldnât be enjoying himself by the seaside. A .should B must C wouldnât D canât
3 .This cake is very sweet . You -------a lot of sugar in it .
A. should put B could have put C might put D must have put
4. ------Tom is never late for work . Why is he absent today ?
--------Something ---------to him .
A. must happen B should have happened C could have happened D must have happened
5. I was on the highway when this car went past followed by a police car. They -----at least 150 kilometers an hour .
A. should have been doing B must have been doing
C. could have done D. would have done
( answer: 1---5 BBDDB )
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èæè¯æ°è¡¨ç¤ºè¯´è¯äººçæ¿æï¼å设ï¼çæµæ建议ï¼èä¸è¡¨ç¤ºå®¢è§åå¨çäºå®ï¼ èæè¯æ°é
è¿è°è¯å¨è¯çç¹æ®å½¢å¼æ¥è¡¨ç¤ºã
表示ä¸ç°å¨äºå®ç¸åçå设æ¶ï¼æ¡ä»¶ç¶è¯ä»å¥ä¸çè°è¯å¨è¯ç¨âè¿å»å¼ï¼beçè¿å»å¼ç¨wereï¼âï¼è主å¥ä¸çè°è¯å¨è¯ç¨âwould (should ,could , might ) +å¨è¯åå½¢âã
If I were you , I should study English .
If he had time , he would attend the meeting .
表示ä¸è¿å»çäºå®ç¸åçå设æ¶ï¼æ¡ä»¶ç¶è¯ä»å¥ä¸çè°è¯å¨è¯ç¨âhad +è¿å»åè¯âï¼è主å¥ä¸çè°è¯å¨è¯ç¨âwould (should ,could , might ) + have +è¿å»åè¯â
If you had taken my advice , you wouldnât have failed in the examination .
ä¸å®å¼çå®ææ¶å¯è¡¨è¾¾ä¸è¿å»äºå®ç¸åçå设ã
To have studied harder, you would have passed the exam .
表示ä¸å°æ¥äºå®ç¸åçå设æ¶ï¼æ¡ä»¶ç¶è¯ä»å¥å主å¥æç¨çè°è¯å¨è¯ä¸â表示ä¸ç°å¨äºå®ç¸åçå设âçè°è¯å¨è¯ç¸åï¼æè
æ¡ä»¶ä»å¥ä¸ç¨âwere to (should)+å¨è¯åå½¢âã
If you came tomorrow, we would have the meeting .
If it were to rain tomorrow , the meeting would be out off .
å½æ¡ä»¶ç¶è¯ä»å¥è¡¨ç¤ºçè¡ä¸ºå主å¥è¡¨ç¤ºçè¡ä¸ºæåççæ¶é´ä¸ä¸è´æ¶ï¼å¨è¯çå½¢å¼è¦æ ¹æ®å®æ表示çæ¶é´æ¥è°æ´ã
If you had worked hard , you would be very tired . (ä»å¥è¯´çæ¯è¿å»ï¼ä¸»å¥æçæ¯ç°å¨)
6ï¼ä»¥ä¸å¥åå¯ä»¥è½¬æ¢æä¸åå½¢å¼
-----çç¥if , ç¨Were, had ,should+主è¯
Were I in school again , I would work harder .
Had you been here earlier , you would have seen him .
Should there be a meeting tomorrow , I would come .
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Were it not for the expense , I would go to Italy .ï¼ä¸è½ç¨werenât it for.......
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