概要： ② She would go out for a walk in the morning when she was in the country. 在乡下时,她总是在早晨去散会儿步。(可能现在仍有散步的习惯。) used to可表示过去的习惯动作和经常的情况,而would只表示过去的习惯动作。例如: ① He used to ∕would smoke while writing. 过去他写东西时常抽烟。 ② She used to be fat. 她过去很胖。 4. can 和 may 考试中主要测试can,may或could,might表示可能性的区别及对may构成的疑问句的回答 can, could, may, might都可以表示可能性.can, could表示潜在的可能性或理论上或逻辑判断上存在的可能性;而may, might则表示事实上的可能性。此外,can还具有“有能力”的意思,而may与might则不具此意。例如:^ ① According to the weather
2017届高三英语语法复习教案之情态动词,标签：高三英语复习教案,高三英语备课教案,http://www.67jx.com② She would go out for a walk in the morning when she was in the country.
在乡下时,她总是在早晨去散会儿步。(可能现在仍有散步的习惯。)
used to可表示过去的习惯动作和经常的情况,而would只表示过去的习惯动作。例如:
① He used to ∕would smoke while writing. 过去他写东西时常抽烟。
② She used to be fat. 她过去很胖。
4. can 和 may
考试中主要测试can,may或could,might表示可能性的区别及对may构成的疑问句的回答
can, could, may, might都可以表示可能性.can, could表示潜在的可能性或理论上或逻辑判断上存在的可能性;而may, might则表示事实上的可能性。此外,can还具有“有能力”的意思,而may与might则不具此意。例如:^
① According to the weather forecast, it may rain tomorrow. 据气象预报,明天可能下雨。
② Any man with a little sense can see that he is wrong. 任何一位有头脑的人都能看出他错了。
May I / we …?这一类疑问句的肯定回答为Yes, please.或Certainly;否定回答为Please don’t.或No, you mustn’t. 例如:
③ ---May we leave now? 我们可以走了吗?
---No, you mustn’t. You haven’t finished your home work yet. 不行,你们还没完成工作呢。
5. used to +do, be used to +doing和be used to +do
used to +v意为“过去常常”,“过去一直”;be used to +v-ing / n(名词)意为“习惯于”;be used to +v意为“被用来(做某事)”。
used to只表示过去,而be used to +v-ing / n可表示现在、过去或将来。例如:
① He used to smoke. Now he doesn’t. 他过去吸烟,现在不吸了。
② He’s quite used to hard work / working hard. 他习惯于埋头苦干。
③ The knife is used to cut bread. 这把刀是用来切面包的。
6. 用作情态动词的其他短语
would rather, would sooner, would (just) as soon, had rather, had better, had sooner, can not but, may (just) as well等可用作情态动词。例如:
① The soldier would sooner die than surrender. 那士兵宁死不屈。
② I’d rather walk than take a bus. 我宁愿步行也不愿乘车。
③ If you don’t like to swim, you may just as well stay at home. 如果你不想游泳,你也可以呆在家里。
【注意】这些短语后一般直接跟动词原形.would (had) rather, would (had) sooner, would (just) as soon后可跟that 引导的从句,that常省去,从句要用虚拟语气。对现在和将来的假设用过去时,对过去的假设用过去完成时。例如
① I would rather you came on Sunday. 我宁可你星期天来。
② I would sooner he hadn’t asked 但愿他没问。
7. would rather表示"宁愿"
would rather do
would rather not do
would rather… than… 宁愿……而不愿。
还有would sooner, had rather, had sooner都表示"宁愿"、"宁可"的意思。例如:
① If I have a choice, I had sooner not continue my studies at this school.
② I would rather stay here than go home. 我宁可呆在这儿也不愿回家。
= I would stay here rather than go home.
⑻ 情态动词的回答方式
问句 肯定回答 否定回答
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