當不定式、動名詞、從句等用作賓語且其后跟有賓語補足語時,就應在賓語補足語前使用形式賓語,而將真正的賓語移至句末:
We found it difficult to persuade her. 我們發(fā)現(xiàn)很難說服她。
He makes it a rule to get up before dawn. 他習慣于天亮前起床。
I think it very strange that he goes out walking almost every night. 我認為他幾乎每晚都出去散步是很奇怪的。
【特別提醒】注意it用作形式賓語的三類特殊句式:
1. 動詞+it+if / when從句
當enjoy, like, dislike, love, hate, prefer, appreciate等動詞后需要接一個if或when引導的從句時,此時必須要先在動詞后接it作形式賓語。如:
She won’t like it if you arrive late. 她不喜歡你遲到。
He hates it when people use his bike. 他討厭別人用他的自行車。
I’d prefer it if I didn’t have to do so much work. 要是我不必做那么多工作,那就太好了。
I would appreciate it very much if you would help me with it. 如果你能幫助我做這事,我會十分感激。
2. 動詞+介詞+it+that從句
能用于此句型的主要有三個動詞,即depend on, answer for, see to。如:
You may depend on it that he will turn up in time. 你可以相信他會及時趕到的。
I can’t answer for it that the boy is honest. 我不能保證這個男孩是誠實的。
I’ll see to it that all these letters will be sent to the post before twelve. 我將注意讓所有的信件在12點以前送到郵局。
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