试题与答案

某氮的氧化物和CO在催化剂的作用下充分反应,生成N2和CO2,若测定得到N2和C

题型:选择题

题目:

某氮的氧化物和CO在催化剂的作用下充分反应,生成N2和CO2,若测定得到N2和CO2的物质的量之比为1∶2,则(   )

A.该氮的氧化物所含电子数为偶数

B.该氮的氧化物可由Cu与浓HNO3反应获得

C.氮的氧化物是自然固氮的一种产物

D.氮的氧化物中氮元素的质量分数为0.636

答案:

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题型:阅读理解

阅读理解。

     Summer camps started from the US. They are programs for teenagers during the summer months in

some countries. Teenagers who take part in summer camps are known as campers. The traditional summer

camp usually means hiking, game-playing and campfires. Now modern summer camps can offer campers

a great many activities. Among them, the intemational summer camp is quite popular, especially with Chinese

campers. 

     First of all, the intemational summer camp can bring campers unusual life experience. As we all know,

the experience in high school plays a very important role in life. The international summer camp is a great

way to establish (确立) the right values for life. Campers will experience the cultural difference-something

they can't get at home from their families. During the international summer camp, children will become more

independent and see new things. They can also leam more through talking with students from all over the

world.

     Making friends is another point. The intemational summer camp mixes (混合) Chinese students with

students from other countries in the world. No matter whether they live with a local family or live with other

students in dormitories (宿舍), they will all share experiences and cultures with persons from different

countries and cultural backgrounds, learn cross-culture communication skills by listening to others and

expressing themselves, and improve friendship over several weeks. They often stay in touch with each

other by email,MSN or QQ after the program finishes.

     The most exciting thing in the intemational summer camp is that Chinese campers can get excellent

chances to speak and use English in a real English world. Language is not only knowledge; it is a skill which

needs to be improved by using it. Campers from English-speaking countries are very friendly, warm-hearted

and helpful.

1. Did summer camps start from the US? 

    _________________________________________________

2. What can children get from the summer camp but not from their families? 

    _________________________________________________

3. How do campers communicate with each other after the program?

    _________________________________________________

4. What are campers from English-speaking countries like?

    _________________________________________________

5. What advantages of the intemational summer camp are mentioned in the passage? 

    _________________________________________________

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