初中英語情態(tài)動詞語法大全

編輯: 逍遙路 關(guān)鍵詞: 初中英語 來源: 高中學(xué)習(xí)網(wǎng)

  【—情態(tài)動詞】情態(tài)動詞通常的用法是:情態(tài)動詞+ have +過去分詞,那么就于此,老師為大家?guī)砭唧w的介紹,供學(xué)生們學(xué)習(xí)參考。

  初中英語語法大全:情態(tài)動詞+ have +過去分詞

  1) may(might) have + done sth, can (could) have + done sth 表示過去,推測過去時間里可能發(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,對過去時間里可能發(fā)生的事情的推測,語氣較強,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,而事實上并沒有做。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.(事實上已扔了。)

  ought to 在語氣上比should 要強。

  4) needn't have done sth  本沒必要做某事

  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.

  21.8 should 和ought to

  should 和ought to 都為"應(yīng)該"的意思,可用于各種人稱。

  ---Ought he to go

  ---Yes. I think he ought to.

  表示要求,命令時,語氣由 should(應(yīng)該)、had better最好)、must(必須)漸強。

  雖然同學(xué)們對情態(tài)動詞應(yīng)該不會很陌生,但是是否了解的狠透徹了呢?如果還沒有的話,那么同學(xué)們需要努力了哦!


本文來自:逍遙右腦記憶 http://m.yy-art.cn/chuzhong/210681.html

相關(guān)閱讀:2019年中考必考英語作文話題(28)