(1)n. Since joining the WTO, China's trade with Europe has greatly increased.

(2)v. trade with与...做交易 trade in oil/fur经营石油/毛皮 trade sth. for sht. 用...换...trade on sth. 利用

用介词填空

1.His father trade _in___fruit.

2.I have traded _with_____ the company for 20years

3.The child didn't trade his candy __for___ a watch.

4.He shouldn't trade _on____ her kindness to take her in.

11. in use在使用中

The laboratory was built in 1900 and is still in use now,实验室建于1900,现在仍在使用.

12. in return (for)作为回报

If you give me your photo, I'll give you mine in return.

What can I do in return for your help?我该做什么来回报你对我的帮助呢?

He gave me a book, and in return, I gave him a stamp .

他给了我一本书,作为回报,我给了他一张邮票.

第二部分：练习

I. 单项选择

1. Nothing ______ after the terrible fire which had been caused by someone smoking in bed .

A. continued B. kept C. left D. remained

2. He ______ the story to be false. Which of the following is WRONG?

A. declared B. regarded C. considered D. believed

3. Do you agree ______ him ______ the matter discussed at the conference?

A. with, about B. to, with C. with, to D. to, on

4. All these changes will lead to_____ stronger and more powerful China, _____ country that can surprise and enrich our planet.

　A. a; a B. a ; the C. the ; a D. the; the

5. As soon as we went ______, our ship left port.

A. on board B. on the board C. on ship D. on the ship

6. I believe the child _____ .

A. to tell truth B. to have told the truth