问题 选择题

在下列各组物质的相互作用中,硝酸只表现氧化性不表现酸性的是(    )

A.Fe和稀HNO3

B.碳和浓HNO3

C.Fe2O3和稀HNO3

D.Cu和浓HNO3

答案

答案:B

在碳和浓HNO3的反应中,HNO3全部被还原,只表现氧化性。

翻译题

完成句子。

     阅读下列各小题,根据括号内的汉语提示,用句末括号内的英语单词完成句子。

1. Don't bother to look for my old dictionary, Jason -it ____________ (出现) some day.   (turn)

2. I can't tell where Mary is, but she _______________ (可能去了) to meet her classmates, for

    they want to go to Yunnan to work as volunteers.   (go)

3. It was on the shelf ____________________ (我放鞋子的地方) that I found my car keys.

    How careless I was!   (put)

4. Hardly _____________________ (我们宣布仪式) open when the rain began to pour down. 

    (declare)

5. In the big fire the woman saved a little boy but lost her son. When asked if she regretted

    _______________ (没有救) her son, she said she made the right choice.   (save)

6. Hello! Is that ABC company? Could I speak to ___________________ (负责……的人)

    the International Sales,please?        (whoever)

7. He was absent again, which ________________ (使得我们困难) to carry on with the work.   (make)

8. As is reported, Chen Guangbiao, known as Chief Charitarian in China ("中国首善"),

    ______ (捐献了) billions to helping people in disaster-stricken areas these years.  (contribute)

9. __________ (在水少的地方), it is hard or even impossible to develop good farming.   (where)

10. When Xu Benyu graduated from college in 2003, he chose to teach in a mountainous area of

    Gui Zhou province when he ________________ (本可以享受) an easy city life.        (enjoy)

判断题