高中英语语法之it 形式主语

2）It is +v-ed +that 从句
It is said that Andy Lau will come to Guangzhou tomorrow.
It was reported that there were 300 people died of this disease.
It is known that Changjiang River is the second longest river in the world.
It 作形式主语替代that从句 1）It is + adj. +that从句 2）It is +v-ed +that 从句 3）It is a pity ( a shame ... ) that ... 4）It happens (seems， looks， appears ) that... 5）It is time ( about time ，high time ) that ...
② It is the first ( second ... ) time that (完成时)
1.真可惜，他没来。it is a pity that 2.我们爱自己的父母是很自然的。it is natural that 3.很明显，他是是个勤奋又上进的人。it is obvious that 4.我恰巧在书店里碰到他。it happened that 5.人人都建议他提前预习考试的内容，但是他不听，难 怪他不及格。it was suggested \no wonder that 6.掌握好英语和计算机技术对于现代人来说是很重要的。
It was suggested that the sports meet be put off until next Saturday. It is desired that we (should) get everything ready by tonight. It was ordered that the medicine be sent there by plane.
It is the first ( second ... ) time that ...
1）It is + adj. +that从句
① It is clear ( obvious， true， possible certain....) that .....
②. It is important ( necessary， right， strange， natural...) that ... 从句中要用虚拟语气（should + v.原 形）
1.It is important that students today master English. 2.It is perfect that you can come to my birhtday party. 3.It is obvious that we need more practice.
1) It is + adj. +that从句
① It is clear ( obvious， true， possible certain....) that .....
②. It is important ( necessary， right， strange， natural...) that ... 从句中要用虚拟语气（should + v.原形）
3）It is a pity (a shame, no wonder, better) that .... It is a pity that we didn't grasp that opportunity. It was a great pity that you (should) have made so many mistakes in your math exercise. It will be better that she stay with her grandmother.
It happens (seems， looks， appears ) that...
It happened ( so happened ) that he met his teacher in the street. It happened that her parents were both out. It happened that the harvest was bad that year. It happened that I had driven that kind of car before. It happened that I was standing next to him when he collapsed. It seems that she is very sad.
2) It is +v-ed +that 从句 ① It is said (reported， learned....) that ... ②. It is suggested ( ordered /demanded/insisted/commanded... ) that(should + v.原形) 3) It is a pity ( a shame ... ) that ... that后的从句一般用虚拟语气（should + 动词原形） 4) It happens (seems， looks， appears ) that... 5).① It is time ( about time ，high time ) that ... 虚拟 语气
it is very important that 7.好像他过几天就会回来。it seems that 8.真遗憾，这样的事竟然发生在你的班上。it is a pity
that ቤተ መጻሕፍቲ ባይዱ.大家都知道，要学好英语一定要多读多听多做练习。
it is well known that 10.那是我第一次到北京。it was the first time that 11.该是我们行动起来保护环境的时候了。it is high time
4.It is strange that he (should) have made a mistake. 5.It is natural that he fall in love with such a beautiful girl. 6.It's strange that he feel so angry.