形式主语从句是雅思写作中很常见的一种句型。大家先来看一下它是怎么样构成的。。譬如说： is clear3.这就是主语从句的基本形式。但假如句子如果如此，主语过长。所以，大家习惯于用it来代替原来的主语。而把原来的主语放在句子的最后。这句话可改为：It is clear that education is important.这就叫做形式主语从句。
以下的形式主语从句句型在雅思写作中都常常用到。期望大伙能认真学会，灵活用。
1 It is often the case that
2 Its a fact that
3 It seems that
4 Its said that
5 Its reported that
6 Its believed that
7 Its universally accepted that
8 Its announced that
9 Its estimated that
10 It must be admitted that
11 Its obvious that
12 It must be stressed out that
13 It is widely-accepted that
14 It cannot be denied that
15 It can be foreseen that
16 Its as clear as crystal that
17 It goes without saying that
18 It is acknowledged that
19 It is well-known that
20 It is estimated that
