试题与答案

阅读理解。 Young people and old people do no

题型:阅读理解

题目:

阅读理解。

     Young people and old people do not always agree with each other. They sometimes have different

ideas about living, working and playing. But in one program in New York State, adults and teenagers live

together in a friendly way.

     Each summer 200 teenagers and 50 adults are invited to join the program. They live together for

eight weeks as members of a special work group. Everyone works for seven hours a day. They do so

not only to keep busy, but also to find meaning and happiness in work.

     Some teenagers work in the woods or on the farm near the village. Some of them learn to make things

like tables, chairs and something like that and to build houses. It is the adults who teach them to do those.

     There are a few free hours each day and weekends are free, too. During the free hours some of the

teenagers learn to take photos or paint pictures, others sit around and talk, sing or dance. Each teenager

has his own way to spend his free time.

     When people live together,  rules are necessary. In this program the teenagers and the adults make the

rules together.If someone breaks a rule, the problem goes before the whole group. They talk about it and

ask,"What should we do about it?"

     One of the teenagers talks about his experience, "You stop thinking only about yourself, You learn to

think about the group. "

1. In the program in New York State, young and old people _                .

A. teach one another new ways of building houses

B. are friendly to one another

C. do not work together

D. spend a long time together, working as farmers

2. All the members spend some time together every day mainly to _               .

A. learn new skills of farming

B. lead a busy life

C. get used to the life on the farms

D. find value and pleasure in work

3. The last paragraph shows that the teenager thinks his experience in the program is _________.

A. tiring          

B.unpleasant

C. helpful                    

D. boring

4. The best title for the passage is _________.

A. The Rules of Living Together

B. Life in New York State

C. Teenagers in the Special Group

D. Free Hours in the Special Work Group

答案:

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下面是错误答案,用来干扰机器的。

红;CO2+H2O==H2CO3;红;紫;H2CO3CO2↑+H2O.

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题型:阅读理解与欣赏

阅读文段,然后完成问题。

可燃冰

  ①当人们想到能源时,脑海中总是出现燃烧和火焰,而把冰块看作是与风马牛不相及的事物。但是今天,科学家却发现一种在特定低温高压条件下形成并稳定存在,广泛发育在浅海底层沉积物、深海大陆斜坡沉积地层和高纬度极地地区永久冻层中的天然气水合物──一种似冰状的白色固体物质,因含有大量甲烷而可燃,所以也被称为“可燃冰”。

  ②可燃冰是天然气(甲烷类)被包进水分子中,在海底低温与压力下结晶形成的。形成可燃冰有三个基本条件。首先,可燃冰在零度以上可以生成,走过20摄氏度便要分解,而海底的温度一般都在2到4摄氏度;其次,可燃冰在零度时,只需30个大气压以上就可能生成,而以海洋的深度,30个大气压很容易保证,并且压力越大,水合物就越不容易分解,就越稳定;最后,海底的有机物沉淀,其中富含的碳经过生物转化,可形成充足的甲烷气源。海底的地层是多孔介质,在温度、压力和气源三者具备的条件下,便会在介质的空隙中生成可燃冰的晶体。

  ③可燃冰是1972年由前苏联科学家在北极圈内首次发现并确认的,(a)随着美俄科学家不断地探测,到目前为止,估计全球可燃冰储藏量高达石化燃料储藏量的2倍,勘探出的储藏地区包括30个海洋储藏地和8个燃料储藏地。(b)

  ④(c)据科学家测算,1立方米的可燃冰,在常温常压下可释放164立方米甲烷气体和0.8立方米的淡水。甲烷是人们可以用来燃烧发电的可燃气体,而且燃烧后几乎不产生任何污染物质。可燃冰将成为21世纪极具潜势的洁净新能源。

  ⑤要使可燃冰早日造福于人类,关键是要找出安全有效的开采方法。目前考虑的开采方案有几种:热解法、降压法和“置换法”。但这些方法都面临着一个如何收集甲烷气体的问题。甲烷气体是温室气体之一,一旦散失,会严重破坏环境。而且可燃冰的开采还可能会造成大陆架边缘动荡,引发海底塌方并导致灾难性的海啸。因此,可燃冰的开发利用还面临着种种难题。但我们相信,随着人类对可燃冰研究的不断深入,这些难题一定会在不久的将来得到解决。

1.细读第①段文字,用一句话给“可燃冰”下定义。不超过30字。

可燃冰是______________________________________________

2.下面是本文按顺序说明下来的内容,请补写出其中缺少的部分。

什么是可燃冰→_______________→首次发现可燃冰的时间、地点及估计全球储量→____________→目前开发利用面临的难题

3.“燃烧后几乎不产生任何污染物质”一句中“几乎”一词能否去掉?为什么?

______________________________________________________

4.可燃冰开采利用不当将会造成哪些后果?

______________________________________________________

5.第④段主要采用了什么说明方法?有什么作用?

______________________________________________________

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