As a child I had an imaginary friend called Polly.

The story is set in an imaginary world.

imaginary fears

5. When I think back to all the experiences that I have had around the world since joining MSF,...(P63) 回想起我参加"无国界医生组织"以来在全世界范围的所有经历...

think back

phrasal verb to remember sth. that happened in the past: 回忆

It might help you to understand Elaine if you think back to when you were her age.

think习惯用语:

think of 考虑；思考; (= think about)

think out 想出；想通；想透；仔细考虑 (= think over)

think through 想透

think over仔细考虑一下(指想过了, 再想

think highly[much, no end, well]of...评价极高; 重视, 赞美; 器重, 看得起

think little [nothing] of 轻视, 满不在乎; 对...毫不考虑, 毫不踌躇

think aloud 自言自语

think twice 再三考虑，三思

第二部分：练习

I. 单项填空：

1. _____ today, he would get there by Friday.

　A. Would he leave B. Was he leaving C. Were he to leave D. If he leave

2. Should it rain, the crops _____ .

　A. would be saved B. would have been saved

　C. will be saved D. had been saved

3. You _____ come earlier. The bus left a moment ago.

　A. would B. should have C. may D. have

4. He treated me as if _____ his own son.

　A. I am B. I would be C. I was D. I were

5. I _____ you some money, but I hadn't any on me then.