从句在复合句中充当主语成分的句子叫做主语从句。下面是初中英语主语从句句型常见例句，希望对学生学习主语从句能有一些帮助
1.That he finished writing the composition in such a short time surprised us all.
他在如此短的时间内写完作文使我们十分惊讶。
2.Whether we will go for an outing tomorrow remains unknown.
我们明天是否会去郊游仍旧未知。
3.Who will be our monitor hasn't been decided yet.
现在还没有决定谁会成为我们的班长。
4.Whom we must study for is a question of great importance.
“我们为谁而学习”是个很重要的问题。
5.What caused the accident remains unknown.
事故的起因是未知的。
6.Whatever you did is right.
你做的任何事都是正确的。
7.Whom the watch belongs to is unknown.
手表的归属是未知的。
8.What we need is time.
我们需要的是时间。
9.It happened that the two cheats were there.
两个骗子碰巧在那里。
10.It is certain that he will win the match.
他一定会赢得这场比赛的。
11.It is true that he has made a very important discovery in chemistry.
他的确在化学领域有了一个伟大的发现。
12.It is very likely that they will hold a meeting.
他们很有可能会举行一场会议。
13.It is strange that he should do that.
他竟然那样做是很奇怪的。
14.It is important that we all should attend the meeting.
重要的是我们都应该参加会议。
15.It is strange that the man should have stuck to his silly ideas.
真奇怪，这个人竟然坚持自己愚蠢的想法。
16.It is a pity that we won't be able to go to the south to spend our summer vacation.
真遗憾我们不能去南方度过我们的暑假。
17.It is still a mystery what caused the accident.
造成事故的原因仍旧是个秘密。
18.It is said that he has gone to shanghai.
据说他已经去上海了。
19.It is known to all that the gun powder was first invented by the Chinese.
所有人都知道火药最初是由中国人发明的。
20.It is suggested that the work should be done with great care.
建议工作应该被小心地被完成。
