專升本英語語法基本知識（下）

專升本英語語法基本知識有哪些？此前給大家推送了專升本英語語法基本知識的上半部分，今天為大家整理了下半部分，趕緊來看看。

狀語從句

狀語從句可以用來表示時間、地點、條件、原因、目的、結(jié)果、行為方式，比較、讓步等。

1.時間狀語從句

連詞: when, whenever, before, after, while, as, once (一旦)，until, (ever) since, as soon as等。

(時間和條件狀語從句中表示將來的情況通常用一般現(xiàn)在時。)

eg: When you cross a road, you must be careful.

It will not be long before we meet again.

She comes here every month since she was a child to see her grandmother.

As soon as I know it, I'll tell you.

2.地點狀語從句

連詞: where和wherever.

eg: Sit down wherever you like.

Put it where you found it.

3.條件狀語從句

連詞: if, unless, as/so long as (只要)，in case(萬一)等。

eg:As/So long as we don't give up, we are bound to succeed.

In case I gorget, please remind me of that.

If it snows tomorrow, we will stay at home.

I will do anything as long as it is interesting.

4.原因狀語從句

連詞: because,as (由于，因為)，since (由于，既然)，now that (既然)，that,等。

eg: As I didn't know the way, I asked a policeman.

Since no one is against, we'll adopt the proposal.

Seeing that she's ill, she's unlikely to come.

I’m glad that you’ve come.

Now that the kids have left home,we’ve got a lot of extra space.