2017--2018学年人教版必修1 Unit 2 English around the world learning about language课时作业
2017--2018学年人教版必修1 Unit 2 English around the world learning about language课时作业第3页

3. 表示"......的数量或数目":

Our income is now double what it was ten years ago. 我们现在的收入是10年前的两倍。

The number of the students in our school is ten times what it was before liberation.

现在我校学生的数量是解放前的10倍。

4. 表示"......的时间":

After what seemed like hours he came out with a bitter smile. 似乎过了几个小时他才苦笑着出来。

The young girl was too frightened to speak, standing there for what seemed like hours.

小女孩吓得不敢说话,在那儿站了几个小时。

5. 表示"......的地方":

This is what they call Salt Lake City. 这就是他们称为盐湖城的地方。

In 1492, Columbus reached what is now called America. 1492年哥伦布到达了现在所称的美洲大陆。

考点:考查主语从句

4. I wonder ________ the equipment will be available in ten days.

A. that B. when C. whether D. where

【答案】C

【名师点睛】

whether和if都可以引导宾语从句,表示"是否",在口语或间接引语中两者可以互换使用。如:

I wonder if / whether I can get some advice from you.

Ask him whether / if he can come.

但在有些情况下,whether和if的用法有一定区别。

1. whether引导的从句常可以与连词or或or not直接连用,而if一般不能。如:

正: Let me know whether you can come or not.

误: Let me know if you can come or not.

2. 当宾语从句提到句首时,只能用whether引导,而不能用if。如:

正: Whether it is true or not, I can't tell.

误: If it is true or not, I can't tell.

3. whether可以引导带to的不定式,if则不能。如: