這個(gè)語法可以用來替代狀語從句，表時(shí)間，原因，條件，讓步等，豐富作文的句式。需要注意的是狀語部分的邏輯主語和主句的主語要保持一致。

Living in such a society with more repetitive work to undertake and more ubiquitous pressure to put up with, people now have to find themselves leisure time activities so different from their work.

Driven by profit, advertisement companies often provide exaggerating or even false information.

還有一些分詞做狀語已經(jīng)成為固定的用法：

▲ Put frankly   坦白說

▲ Given（that）….,   假設(shè)，考慮到

2、非限制性定語從句

在句中起補(bǔ)充說明的成分，讓語法結(jié)構(gòu)更復(fù)雜。

Not only can such activities foster his characters 【部分倒裝】, but he can also discover the unknown of life, which is crucial to an individual who is eager to know the world at a young age.

3、虛擬語氣的倒裝

經(jīng)常用來總結(jié)例子，多使用對(duì)過去事實(shí)的虛擬。

結(jié)構(gòu)為：

▲ Had +主語+been/done….

▲ 主語+should/could/might/would + have done….

Had my coach not asked me to lead the team, I would have not made these friends.

4、被動(dòng)語態(tài)

簡(jiǎn)單的語法卻可以讓行文顯得更正式：

☆ The quality of education has been greatly improved.

一些固定的用法也很好用：

▲ It is commonly acknowledged that …..眾所周知

▲ It is widely believed that….大家都相信

5、強(qiáng)調(diào)句型

可以更清晰地傳達(dá)出寫文章的人的立場(chǎng)和感情

比如it is 的強(qiáng)調(diào)句型：It is/was + 被強(qiáng)調(diào)的成分 + that/who, 所強(qiáng)調(diào)的可以是單詞、短語，也可以是從句，但必須保證其結(jié)構(gòu)完整。被強(qiáng)調(diào)的成分可以是主語、表語、賓語、同位語、狀語等，但不能是定語或謂語。

☆ Older people usually have heavy responsibilities on their shoulders, and it is these responsibilities that render them incapable.

還可以利用do/does來強(qiáng)調(diào)

☆ Employing more teachers does have certain benefits in enhancing students’ academic performance.

學(xué)習(xí)語法規(guī)則是寫作基本的一個(gè)要求。認(rèn)認(rèn)真真看書做練習(xí)，記住規(guī)則并不是多難的事情。同時(shí)我們也要去理解規(guī)則的含義，在范文中如果遇到了不常見的用法，不要放過，要仔細(xì)查證。而寫作的過程也是一個(gè)應(yīng)用語法的過程。所以大家要勤練多寫，攻克語法關(guān)指日可待。