《初二寒假8情态动词》由会员分享，可在线阅读，更多相关《初二寒假8情态动词（2页珍藏版）》请在金锄头文库上搜索。
1、 情态动词情态动词包括：1、 Can / could 2、May / might3、Must 4、Shall / should5、will / would 6、Dare7、Need 8、ought to1.表示能力 The parrot can speak three languages.一can 2.表示请求 Can I borrow the book from the library.3.表示可能性 Shanghai can be very cold in March.注意点：1.Could 过去式；表示请求时：语气更委婉 表示可能性时：可能性更小1. can现在，过去，将来，be abl
2、e to 可以用于各种时态2.Can 与 be able to 2. be able to 可以表示成功做了某事1.在否定、疑问句中表示“对过去发生行为3.can./could + have +p.p 的可能性猜测。2.在肯定句中表示“本来可以做而未做”The door was lacked. She couldnt have been at home.You could have been more careful. 1.表示可能性二may 2.表示请求 3.表示祝愿注意点：1.might 过去式；表示请求时语气更委婉，表示可能性时，可能性更小Eg. . She may be still waiting for us. . May I come in?.May you have a happy holiday. 1.在否定，肯定句中表示对过去动作的推2. may/might + have +p.p“也许是”2. Might+have+p.p表示虚拟，表“劝告、责备之意。”Eg. . He might have spoken to her yesterday. . You might have told me earlier.
