高中英语语法12课（2）“It”用法及其句型和固定搭配精讲(4)

例 It"s 10 years that he lived here
6. It was(not)… before…过(不)了多长时间某动作发生了
例 It was not long before they arrived.
四、It 作形式宾语
用来替代作宾语的从句、动词不定式、动名词，而把真正作宾语的从句、动词不定式、动名词置于句尾。
It 作形式宾语的常见句型：
1. verb it adj./noun (for/of) to do/clause (verb=think, believe, suppose, consider, feel, make, keep…)
例 I think it hard for you to do the task on your own./I think it hard that you"ll do the task on your own.
2. verb it adj./noun (one"s) doing (adj.=useless/worth/worthwhile)(noun=no use/no good/worth one"s while/a waste of time/money/energy/words) (verb=think, believe, suppose, consider, feel, make, keep…)
例 I"ll make it worth your while telling me about his secret.
3. verb it important/unimportant/necessary/unnecessary/natural/essential that … (should)…
verb it of much/great/no/little importance that…(should)…
(verb=think, believe, suppose, consider, feel, make, keep…)
例 I think it important that you (should) attendthe conference.