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      形式主语从句是雅思写作中非常常用的一种句型。我们先来看一下它是如何构成的。(That + 一个完整的句子可做主语)。比如说：(That education is important) is clear.这就是主语从句的基本形式。但如果句子要是这样，主语过长。所以，我们习惯于用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。希望大家能认真掌握，灵活使用。

　　1 It is often the case that

　　2 It’s a fact that

　　3 It seems that

　　4 It’s said that

　　5 It’s reported that

　　6 It’s believed that

　　7 It’s universally accepted that

　　8 It’s announced that

　　9 It’s estimated that

　　10 It must be admitted that

　　11 It’s 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 It’s 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