高二英語(yǔ)Sporting events教案
a. needn't b. wouldn't c. mustn't d. shouldn't
答案a。needn't 不必，不用。 wouldn't 將不, 不會(huì)的。 mustn't 禁止、不能。 shouldn't 不應(yīng)該。本題為不需要，不必的意思，應(yīng)用needn't。
3）---don't forget to come to my birthday party tomorrow. ---______.
a. i don't b. i won't c. i can't d. i haven't
答案b. will既可當(dāng)作情態(tài)動(dòng)詞，表請(qǐng)求、建議、也可作為實(shí)義動(dòng)詞表"意愿、意志、決心"，本題表示決心，選b。
十一。帶to 的情態(tài)動(dòng)詞
帶to 的情態(tài)動(dòng)詞有四個(gè)：ought to, have to, used to, be to, 如加上have got to ,(=must), be able to，為六個(gè)。它們的疑問(wèn)，否定形式應(yīng)予以注意：
do they have to pay their bill before the end of the month?
she didn't use to play tennis before she was fourteen.
you ought not to have told her all about it.
ought he to see a heart specialist at once.?
ought to 本身作為情態(tài)動(dòng)詞使用。其他的詞作為實(shí)義動(dòng)詞使用，變疑問(wèn)，否定時(shí)，須有do 等助動(dòng)詞協(xié)助。如： tom ought not to ___ me your secret, but he meant no harm.
a. have told b. tell c. be telling d. having told
答案a。由于后句為過(guò)去時(shí)，告訴秘密的動(dòng)作又發(fā)生在其前因，此地應(yīng)用過(guò)去完成時(shí)，但它在情態(tài)動(dòng)詞 ought to 后，所以用 have。
十二。情態(tài)動(dòng)詞+ have +過(guò)去分詞
1) may(might) have + done sth, can (could) have + done sth 表示過(guò)去，推測(cè)過(guò)去時(shí)間里可能發(fā)生的事情。
philip may (might) have been hurt seriously in the car accident.
philip can (could) have been hurt seriously in the car accident.
2) must have +done sth，對(duì)過(guò)去時(shí)間里可能發(fā)生的事情的推測(cè)，語(yǔ)氣較強(qiáng)，具有"肯定"，"諒必"的意思。 --- linda has gone to work, but her bicycle is still here. ---she must have gone by bus.
3) ought to have done sth, should have done sth
本應(yīng)該做某事，而事實(shí)上并沒(méi)有做。否定句表示"不該做某事而做了"。
you ought to (should) have been more careful in this experiment.
he ought not to have thrown the old clothes away.（事實(shí)上已扔了。）
ought to 在語(yǔ)氣上比should 要強(qiáng)。
4) needn't have done sth 本沒(méi)必要做某事
i dressed very warmly for the trip, but i needn't have done so. the weather was hot.
5) would like to have done sth 本打算做某事
i would like to have read the article, but i was very busy then.
1. he ______ you more help, even though he was very busy.
a. might have given b. might give c. may have given d. may give
2. jenny______ have kept her word. i wonder why she changed her mind.
a. must b. should c. need d. would