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情态动词基本用法专题总结大全讲解与练习
版块:教育培训   类型:普通   作者:clcfone   查看:17   回复:0   获赞:0   时间:2021-12-16 15:03:24

情态动词基本用法专题总结大全讲解与练习
情态动词 用法 例句 注意事项
can
could 1表许可(和may可互换)、能力
2表怀疑、猜测、可能性(用于否定和疑问句中)
3 could可表比can更委婉的语气及用于虚拟语气。 1You can/may sit here./He can swim.
2 He can’t be sixty.
3 Could you come again tomorrow?
can和be able to都可表能力,但be able to可表达“某事终于成功”,有更多的时态。
may
might 1表可以(问句中表请求,might更婉转)
2表可能,或许(might语气更加不肯定)

3表祝愿(用于倒装句中)

语法易错题
英语单词记忆
英语语法练习题
 

1 May/Might I use your bike?

2 He may/might be at home.

3 May you succeed! 

1回答May…do…?的否定用 mustn’t/can’t

2回答May/Might…
do…?的否定用 can’t/might not

must 1表必须,应该(表主观要求)
2表推测(用于肯定句),译为“准是,一定” 1 You must study hard.
2 She must be tired. 否定式mustn’t表不准,禁止;否定回答用needn’t/don’t/doesn’t have to(不必)
have to 只好,不得不(客观的必须,有时态人称变化) Without help, I had to do it myself. must表主观意识。have to有多种时态。
ought to 应当(表示义务责任,口语中多用should You ought to obey laws. 否定用oughtn’t 疑问句用Ought…to do…?

shall 1用于一三人称的疑问句,表征询意见
2用于二三人称, 表示许诺、命令、警告等 1 Shall we go now?
2 The sign there reads, “No person shall smoke here.” 
should 1表建议或劝告,译为“应该”
2本该(含有责备意味) 1 You should learn from each other.
2 You should have given him help. 

will
would 1表意志或决心
2疑问句中用于第二人称表请求,would比较委婉 1 He promised he would never smoke again.
2 Will/Would you like some tea? would表示过去的习惯或喜好,不涉及现在; used to表示过去常常做现在已经不再有的习惯.

dare 敢(常用于否定句、疑问句和条件从句中) He dare not/daren’t sleep alone.
Dare you touch it? 过去式dared;可作实义动词
need 需要,必须(常用于否定句和疑问句中) You needn’t do the work now. Need…do…?的肯定回答:Yes,…must. 可作实义动词
used to 过去常常(现在已不再) He used to play football. 否定式usedn’t/usen’t to do/didn’t use to do; 疑问Used…to…do…?Did…use to do…?

填入适当的形容词、副词或用所给词的正确形式填空
1. The number of the trees that the villagers planted last year reached as __________ as 6,000,000.
2. There was so _________ smoke that they couldn’t see across the hallway.
3. My little brother is not old ___________ to go to school.
4. In that case, there is nothing you can do __________ than wait.
5. I must be getting fat-I can ____________ do my trousers up.
6. They are __________ little insects that we can not easily see them with our eyes.
7. There was __________ little food left then that we had to turn to the local people for help.
8. Mary kept weighing herself to see how much ___________ she was getting.
9. I haven’t seen the movie and my brother hasn’t _____________.
10. He is always telling lies, so I will ________ believe him.

答案: 1. many 2. much 3. enough   4. other  5. hardly 6. such 7. so 8. heavier 
9. either 10. never  

 
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