vt. to expect and need:

Investment of this kind supposes (= would not be possible without) an increase in the company's profits this year.

be supposed to 应该

You are supposed to finish the work before 8:00 o'clock this evening.

5 This means all the action occurs at one time, in one place.(page 6) 这意味着所有的情节发生在一个时间，一个地点。

Occur

vi. (especially of accidents and other unexpected events) to happen:

An accident involving over ten vehicles has occurred in the east-bound lane.

If any of these symptoms occur while you are taking the medicine, consult your doctor immediately.

vi. + adv. or prep. to exist or be present in, among, etc:

Violence of some sort seems to occur in every society.

Minerals occur naturally in the earth's crust.

(3)occur to sb

The thought did occur to me.

[+ that] It never even occurred to us that he hadn't been invited.

Does it never occur to you that I might like to be on my own occasionally?

自我检测:

I __________ along the street looking for a place to park when the accident ______.

A went; was occurring B went; occurred

C was gong; occurred D was going; had occurred

答案: C

第三部分：练习

1 Write out the words according to the English explanations.

1 make somebody laugh or simile ____________

2 the person in charge of a play ____________

3 very good of high quality ____________