不定式作主語的用法和例句

  在語法中,動詞不定式是指動詞的一種不帶詞形變化從而不指示人稱、數量、時態的形式。它之所以被叫做不定式,是因為動詞不被限定,或者說不被詞形變化所侷限。不定式屬於非謂語動詞。以下是小編為大家整理的不定式作主語的用法總結,希望能幫助大家更好地認識不定式,提高英語水平。

  1*** It's easy ***for me*** to do that.我做這事太容易了

  easy, difficult,  hard,  important,  possible,  impossible, comfortable,  necessary,

  the first,  the next,   the last,  the best, too much,  too little,  not enough,  better;

  It's so nice to hear your voice.

  聽到你的聲音真高興。

  It's necessary for you to lock the car when you do not use it.

  當你不用車的時候,鎖車是有必要的。

  2*** It's very kind of you to help us. 他幫助我們,他真好。

  Kind, nice,  stupid, rude,  clever, foolish, thoughtful, thoughtless, brave, considerate***考慮周到的***, silly,  selfish***自私的***

  例句:

  It seemed selfish of him not to give them anything. 他不給他們任何東西,這顯得太自私了。

  It was silly of us to believe him. 我們真愚蠢,竟然相信了他。

  注意:

  1*** 其他系動詞如,look,appear等也可用於此句型

  2*** 不定式作為句子成分時,動詞用單數形式。

  3*** 當不定式作主語的句子中又有一個不定式作表語時,不能用It is… to…的句型

  ***對***To see is to believe. 百聞不如一見。

  ***錯***It is to believe to see.

 

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