内容正文:
2024年中考英语高频考点精讲——情态动词
知识精讲
情态动词表明说话者对某一行为的态度和观点,主要包括揣测、判断、需要、可能、各种意愿等。情态动词不能单独作谓语,只能和主动词一起构成谓语,没有人称和数的变化。
精讲一:can &could
can:
①can表示能力,意为“能、会”,用于一般现在时。
②can表请求和许可,意为“可以”。
③can’t be表否定推测“不大可能”。
①The girl _______ dance very well.
②—_______ I smoke here?
—Yes, you _______.
③This pair of shoes _______ be Helen’s. It’s too small.
could:
①could是can的过去式,表示过去具有某种能力,用于一般过去时。
②could用在疑问句中,表委婉的请求(指现在)。
③could表示不大的可能性。
①I _______ dance well when I was a child.
②_______ you lend me your bike?
③It _______ be his earser, but I’m not sure.
精讲二:may & might
may:
①may表请求和许可,意为“可以”。
②may表可能性较小的推测,意为“可能,也许”,常用于肯定句。
③may用于祈使句,表示祝福和愿望。
①—_______ I come in?
—Yes, please.
②This watch _______ be Cindy’s. She likes pink best.
③_______ you succeed!
might:
①might表示请求、许可,意为“可以”,语气比may更委婉。
②might表示推测,意为“可能”,可能性低于may。
③might是may的过去式,表示过去的可能、许可。
①_______ I ask you a question?
②He is away from school. He _______ be sick.
③She said he _______ take her bike.
精讲三:must & have to
must:
①must表必须,强调主观上必须。
②must否定式为mustn’t,表示“不准、禁止”。
③must be表推测,只用于肯定句,表示“一定是”。
④must引导的一般疑问句,
肯定回答用must,否定回答用needn’t/don’t have to.
①I have something to do. I _______ go now.
②You _______ smoke here!
③He _______ be ill. He looks so pale.
④—Must we hand in our exercise books now?
—Yes, you _______. /No, you ___________________.
have to:
have to意为“不得不”,强调客观上必须,有各种人称、时态和数的变化。don’t have to (不必) = needn’t
—It’s raining heavily. He _______ take a taxi to school.
—Good idea! He ________________ walk to school.
即时训练
用can, could, may, might, must和have to的适当形式填空。
1. Everyone here ________ speak English.
2. I ________ play the piano five years ago.
3. —________ I go with them?
—Yes, you ________.
4. The children ________ get up early to catch the first bus.
5. __________ I watch TV for a while, Mum?
6. It _____ be father. He went to Beijing this morning.
7. All passengers ________ go t