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1、1中考英语专项复习中考英语专项复习情态动词情态动词l概念:概念: 情态动词是表示情态意义的动词,它表示说情态动词是表示情态意义的动词,它表示说话人的语气和情态,它不能单独作谓语,必须话人的语气和情态,它不能单独作谓语,必须与实义动词一起构成谓语,情态动词没有人称与实义动词一起构成谓语,情态动词没有人称和数的变化,过去式通常表示更客气、更委婉和数的变化,过去式通常表示更客气、更委婉。 I can speak English .He can speak English. They can speak English, too. Can you help me? / Could you help m
2、e?2初中阶段必须掌握的情态动词:初中阶段必须掌握的情态动词: can could may might will would must have to need had better should=ought to 3考点一:情态动词基本含义考点一:情态动词基本含义can ( could ) 能能, may (might) 可以,可能可以,可能 will (would) 将,会,愿意将,会,愿意 must 必须必须have to不得不不得不 need 需要需要sb. need to do sth., sth. need doing . should=ought to应该应该had better
3、 最好最好 had better (not) do sth4考点二:表猜测语气的情态动词考点二:表猜测语气的情态动词表猜测性的情态动词有:表猜测性的情态动词有:may , cant , must 。may表没把握的猜测。表没把握的猜测。cant 表有把握的否定猜测。表有把握的否定猜测。must 表有把握的肯定猜测表有把握的肯定猜测5考点三:情态动词开头的疑问句的答语考点三:情态动词开头的疑问句的答语 句型句型肯定回答肯定回答否定回答否定回答Can IYes, you can .No, you cant .May I Yes ,you may.No, you mustnt.No, you can
4、t.Must IYes, you must.No, you neednt.No you dont have to Need IYes, you must.No, you neednt6考点四:易混词的辨析考点四:易混词的辨析(一)一)must 与与have to We _study hard .We _stay at home because it is raining.提示:must 表主观看法,意为“必须”。 have to表客观需要,意为“不得不”(二)(二)maybe与与may be _he is right . It_ rainy tomorrow.提示:may 为情态动词后接动词原
5、形。Maybe为副词意思为“大概,也许”musthave toMaybemay be7考点四:易混词的辨析考点四:易混词的辨析(三)can与be able to I_ speak English now.My sister _speak English two years ago. My brother _ speak English in the future.提示;can 只有现在和过去时(could) be able to可用于任何时态中。(四)cant 与mustnt cant 表“不可能”。mustnt表“禁止,不许”。Can/am able tocould/was able to will be able to8考点总结 l1,单词的意思单词的意思l2情态动词的答语情态动词的答语l3表猜测的情态动词表猜测的情态动词may, cant ,must .l4易混淆的情态动词易混淆的情态动词 can与 be able to ; have to与 must ;maybe与 may be ;cant mustnt注意注意:need的用法;had better 的用法。
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