文档介绍：it的用法及强调句型
用one，ones，it，that，those填空
(1) — I can't find my watch.
— You haven't found ______？ If you want to buy a ne句用一般过去时)
(3) It / This is the first / second…time that－从句(必须使用现在完成时)
这是某人第……次做了某事。
It / That was the first / second…time that－从句(必须使用过去完成时)
例：①It is the second time that she has visited the Great Wall.
②This was the first time that I had come late to school.
(4) It was ＋时间点 ＋ when －从句
例： It was evening when we got home.
＝It was evening in which we got home.
(5) It was / will be ＋ some time ＋ before －从句
二、it作形式主语
(8) is possible for me to make a tour around the world.
三、it作形式宾语
①How did it come about that so many people were attacked?
② She feels it hard to get in touch with her old friend.
③ Mobile phones make it possible for us to keep in touch anywhere.
④ I have made it a rule to get up early.
I consider it no good chatting with strangers through the Internet.
I hate it when people speak with their mouths full.
I really appreciate it if you could help me with my math.
①You must see to it that the doors are locked before you leave the lab.
②You can depend upon it that we won't give up.
③I answer for it that she is an honest girl.
四、带it的一些固定词组
1．(You've / I've) got it. 懂了，明白了
2. Forget it. 算了吧，别在意，没关系。
3. take it easy 别着急，慢慢来；别过于紧张
4. make it 办得到，做成功
5. make it ＋时间 把……定在(某时)
6. It / That (all) depends. 那要看情况而定。
7. It c