三一口語(yǔ)六級(jí)語(yǔ)法中主要有三個(gè)語(yǔ)法需要考生們注意，下面我們主要針對(duì)這三種語(yǔ)法進(jìn)行詳細(xì)的講解：

　　1. If 引導(dǎo)的條件句---第一條件句

　　形式：

　　If I am better tomorrow, I will get up.

　　If I have a headache, I will take an aspirin.

　　If she finishes early, she will go home.

　　用法：

　　第一類(lèi)條件句從句中的動(dòng)詞用一般現(xiàn)在時(shí)，主句中的動(dòng)詞用will/shall 動(dòng)詞原形。用來(lái)表示詢(xún)問(wèn)或談?wù)撌挚赡艿氖虑?。如果我們認(rèn)為將來(lái)的事件可能會(huì)發(fā)生，就可以用第一條件句去描述將會(huì)發(fā)生什么事或不會(huì)發(fā)生什么事。

　　2. 過(guò)去進(jìn)行時(shí)

　　形式：

　　過(guò)去進(jìn)行時(shí)由was/were -ing 分詞構(gòu)成。

　　I was writing.

　　We were writing.

　　用法：

　?、俦硎具^(guò)去某時(shí)正在進(jìn)行的動(dòng)作。

　　What were you doing last night at seven o'clock?

　　Workers were building a dam last summer.

　?、谂calways 連用表示過(guò)去經(jīng)常重復(fù)的動(dòng)作。

　　He was always changing his mind.

　　She was always coming back late.