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    同等學力申碩英語情態動詞考察重點

      情態動詞這一小小的語法對于同等學力申碩考生來講是十分的重要的,考生要想提高自己的英語成績,就一定要過語法這一關,而情態動詞就是其中一個十分重要的語法。下面便是對于同等學力申碩英語情態動詞考察重點的介紹,希望給想要參加考試的考生帶來一定的幫助。

      情態動詞+ 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生的事情。

      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.

      比較have to和must

      1) 兩詞都是‘必須’的意思,have to 表示客觀的需要, must 表示說話人主觀上的看法,既主觀上的必要。

      My brother was very ill, so I had to call the doctor in the middle of the night. 我弟弟病得很厲害,我只得半夜里把醫生請來。(客觀上需要做這件事)

      He said that they must work hard. 他說他們必須努力工作。(主觀上要做這件事)

      2) have to有人稱、數、時態的變化,而must只有一種形式。但must 可用于間接引語中表示過去的必要或義務。

      He had to look after his sister yesterday.

      3) 在否定結構中: don?t have to  表示“不必” ;mustn?t 表示“禁止”

      You don?t have to tell him about it.  你不一定要把此事告訴他。

      You mustn?t tell him about it. 你一定不要把這件事告訴他。

      可能我們從小都在接觸英語,但是我們并沒有真正的理解英語,因此英語對于很多人來講仍然是難點,考生還是需要繼續努力。如果你不知道應該如何備考,也不知道如何報考,你也可以在線和我們的老師進行溝通,讓我們的老師給你更多的幫助。

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