第十六章 主語 用it作主語的句子(2)

　　1. it還可改變句子結(jié)構(gòu)，使對句子的某一成分加以強調(diào)，如強調(diào)主語(a)，賓語(b)，狀語(c)等：

　　a. It was Jim who met your sister in the zoo.

　　是吉姆在動物園碰到你妹妹的。

　　b. It was your sister that (whom) Jim met in the zoo.

　　吉姆在動物園里碰到的是你妹妹。

　　c. It was in the zoo that Jim met your sister.

　　吉姆是在動物園碰到你妹妹的。

　　2.強調(diào)部分指人時用who (m)，有時用that來引起后面從句(a)，其他情況都用that (b):

　　a. Lenin stressed that it is precisely the people who create history.

　　列寧強調(diào)說正是人民創(chuàng)造了歷史。

　　It was Betty who had been wrong.

　　錯的是貝娣?

　　It's the people who we should rely on.

　　我們應(yīng)當依靠的是人民。

　　Was it you that broke the window?

　　打破窗子的是你嗎?

　　b. It was on Monday night that this happened.

　　發(fā)生這事是在星期一夜里。

　　It was through me that he lost his place.

　　是因為我他才丟失這份工作的。

　　It was here that he differed from an Englishman .

　　他和英國人不同之處就在這里。

　　3.it還可用作為先行詞作形式上的主語，把真正的主語移到句后，使句子顯得平穩(wěn)一些。后面真正的主語可以是：

　　l)不定式：

　　It's my duty to help them.

　　幫助他們是我的責任。

　　Is it convenient to call you up tonight?

　　今晚給你打電話方便嗎?

　　How long does it take to get there?

　　到那里要多少時間?

　　2)動名詞：

　　It's no use worrying about it.

　　發(fā)愁沒有用。

　　It's dangerous playing with fire.

　　玩火是危險的。

　　Is it worth while doing it?

　　這樣做值得嗎?

　　3)從句：

　　It's good (that)you have thought of us.

　　難為你想到了我們。

　　It's happened that she wasn't in.

　　恰好她不在家。