英语作文常用句型（ 三） 用于解释性和阐述性论

　　1．Everybody knows that…
2．It can be easily proved that…
3． It is true that…
4． No one can deny that
5． One thing which is equally important to the above mentioned is…
6． The chief reason is that…
7． We must recognize that…
8． There is on doubt that…
9． I am of the opinion that…
10． This can be expressed as follows；
11． To take …for an example…
12． We have reason to believe that
13． Now that we know that…
14． Among the most convincing reasons given， one should be mentioned…
15． The change in …largely results from the fact that
16． There are several causes for this significant¹ growth in…，first …，second …，finally…
17． A number of factors could account for the development in…
18． Perhaps the primary reason is…
19． It is chiefly responsible of…
20． The reasons for…are complicated²， And probably they are found in the fact…
21． Here are several possible reasons， excerpt³ that…
22． Somebody believes/argues/holds/insists/thinks that…
23． It is not simple to give the reason for this complicated phenomenon…
24． Different people observes it in different ways．

1 significant   

adj.相当数量的；意义重大的；意味深长的

参考例句：

• Your success today may be significant for your whole future.你今天的成功对你的整个未来可能是重要的。
• She cast him a significant smile.她向他投去意味深长的一笑。

2 complicated   

adj.错综复杂的，麻烦的，结构复杂的

参考例句：

• The poem is so complicated that I cannot make out its meaning.这首诗太复杂，我理解不了它的意思。
• This is the most complicated case I have ever handled.这是我所处理过的最为复杂的案子。

3 excerpt   

n.摘录，选录，节录

参考例句：

• This is an excerpt from a novel.这是一部小说的摘录。
• Can you excerpt something from the newspaper? 你能从报纸上选录些东西吗？