问题 选择题

2012年第43个《世界地球日》的主题为“珍惜地球资源,转变发展方式”。地球是我们惟一的家园,人人应保护资源环境,善待地球。下列做法符合该主题的是

A.大力开采矿物,保障金属材料的使用

B.垃圾分类回收处理再利用

C.将废弃塑料集中到野外焚烧,减少污染

D.大量使用含磷酸钠(Na3P04)的洗衣粉

答案

答案:B

A.化石燃料燃烧会产生污染,不符合主题.

B.垃圾分类回收处理再利用, 符合主题

C.将废弃塑料集中到野外焚烧,能够产生新的污染.不符合主题.

D.含磷的废水随意排放到江河中,会使浮游生物大量繁殖,形成赤潮;不符合主题.

故选B

阅读理解

阅读理解。

     We asked thirty young people between 14 and 18  several questions. All the children had computers

at home. The average time spent on a computer in a week was about 12 hours, with the highest about 32

hours,  and  the lowest only 5 hours. Most  children  said  they  usually  used  computers  to  play  games.

Fourteen children told  us they did some word-processing(文字处理) at times. Eight people told us they

kept addresses and phone numbers  on  their computers or used them as diaries. Only three people said

they were learning to write computer programs and nobody used databases(数据库). Only two of them

said computers helped with their lessons. The diagram(表格) gives all the results one by one.

     The results  show that computer  use is  quite  common  among 14-18-year-old  children.  They also

show quite clearly that computers are seen  by  most young people as little more than game machines. It

means to us that, though computers are common(普遍) in the homes of young people, they have not yet

become popular in everyday life.

1.In the diagram, what does the letter"c"show?

A.It shows three people between 14 and 18.

B.It shows only 2 of the thirty children.

C.It shows that two of them use computers to help them with their lessons.

D.It shows that three of them use computers to help them write computer programs.

2.Most of the 30 children spent about _______ hours on computers in a week.

A.5

B.12

C.20

D.32

3.There is one mistake in the diagram. What is it?

A.The number of "c" should be lower.

B.The number of "d" should be higher.

C.The number of "a" is too high.

D.There should be no number about "e".

4.In the last paragraph(段)"little more than"means _______.

A.almost the same as

B.far more than

C.different from

D.much more than

5.The writer thinks _______.

A.children must learn to play all kinds of games

B.we should learn many other uses of computers

C.young people should spend more time on computers

D.computers will become much cheaper.

判断题