it常用特殊句型
1.make/think/consider/find/feel/suppose it + adj./n. + to do sth.
2.enjoy /like/love/hate/dislike it + when/if …喜欢/讨厌……
3. sb would appreciate it if sb would/could do... 如果某人做……, 某人将不胜感激。
4.see to it that…= make sure that... 务必/确保……
5.depend on/rely on/count on it that ...= believe that... 信赖……。
6.take it for granted that…认为……是理所当然
7. bring it to one's attention that ... ……引起某人的注意。
8.owe it to sb. that…把……归功于……。
9.sb. make it a rule to do sth/ that ... 使做某事成为一种习惯
10.... make it possible/ impossible (for sb) to do sth. ……使某人可能/不可能做某事。
11.sb. make it clear that... 表明...
12.It occurred to/ came to/hit/ struck sb that... 某人突然想到……
13.It is necessary/unnecessary/important/possible... (for sb) to do sth. 某人做某事是必要的……。
14.It happened / chanced that ... 碰巧……。
15.It is no use/useless/ no good doing sth. 做某事是没用的/ 好处的。
16.It is a waste of time/money doing sth. 做某事是浪费时间/ 钱.
17.It is worthwhile doing sth./ to do sth. 做某事是值得的
18.When it comes to sth, ... 当谈到/涉及到某事时，……
19.if I can help it,…如果我能做到的话，……
can't help it . 情不自禁，没办法，无法控制或改变。
20.it was + 具体时间+ when从句（一般过去时）某事发生时，时间是……
21.it is/has been + 一段时间+ since 从句（一般过去时）自从……以来有……之久
22. it was + 一段时间+ before从句（一般过去时）过了多长时间就/才……
23.it will be + 一段时间+ before从句（一般现在时）要过多长时间就/才……；
24.it was long + before从句（一般过去时）过了很久才……
25.it wasn’t long + before从句（一般过去时）没过多久就……
26. it will be long + before从句（一般现在时）将要很久才能……
27.it won’t be long + before从句（一般现在时）将不要多久就会……
28.It is/ was + 被强调部分（除谓语以外）+ that / who(人) ... (强调句)
29. it was not until +从句或时间短语+ that+ 句子是直到……才……
30.it is + the序数词+ time + 现在完成时这是某人第几次做某事了
31. it was + the序数词+ time + 过去完成时那是某人第几次做某事了
32. it is (high/about) time + that从句（一般过去时或should+动词原形）某人该做某事了
33.it looks/ seems/ appears as if(as though)...... 看起来好像……
34.It takes sb some time to do sth. 某人花费时间做某事
35. It costs sb. + money + to do sth 做某事花费了某人...钱
36. It is + natural ( strange, important, essential, necessary…) + that-cl (虚拟语气:should +V原形)
37. It is + a pity ( a shame, …)+ that-cl (从句用虚拟语气：should +V原形)
38. It is said (reported, known, thought, believed, announced… ) +that-cl
39. It is suggested ( advised, ordered, demanded, insisted, commanded…) + that-cl ( 虚拟语气)
40. It makes no difference whether ….or not…不论（是否）……没关系、没影响
41. It doesn’t matter/count much whether… or not…不论（是否）…… 不十分重要。
42. It turns/turned out that….结果是……
43. It is up to sb to do sth 做某事由某人决定。
44.It is/was no wonder that... 难怪……。
45.It is kind/clever/cruel ...(adj.修饰sb.) (of sb) to do sth. 做……某人真是太好/聪明/残忍…
46.It must be kept in mind that ... 必须牢记的是……
47.It can be seen from the statistics that ... 从这个统计可看出……
48. It must be pointed out that... 必须指出的是……
49. It has been proved that… 有人已经证实……
50. It is likely/ possible/probable that ... 很可能……。
51. It's convenient for sb to do sth. 某人方便做某事。
52. It's one's duty/ responsibility to do sth. 做......是某人的责任。