问题 综合

根据下列材料回答问题

三峡工程蓄水后,峡江急流变成“平静湖水”(图23)。随着大坝的建成运行,库区环境问题备受社会各界关注。据国家环保局通报,目前库区水质较好。但库区上游及其沿岸支流城镇的废水、固体废弃物非达标排放现象仍然严重,每年有大量生活垃圾随流水进入库区,某县曾在4天内捞起的漂浮物就达100多吨。

小题1:图23中,某支流上A、B两处水质较差的是哪处?如果该现象具有一定普遍性,试说明原因。

小题2:漂浮物对库区的主要危害有哪些?

小题3:从源头控制的角度,采取哪些环境管理措施可以解决库区漂浮物问题?

答案

小题1:B处。

原因:库区两岸支流地区城镇工业、生活等污水排放,其下游受到库水顶托,水流相对变缓,致使污水富集,水质变差。

小题2:危害三峡工程安全;影响旅游景观;阻碍航运。

小题3:加强宣传教育,提高公众环保意识;以及利用各种手段(法律、行政、经济等)制止乱倒垃圾行为;对城乡垃圾进行集中收集;采用各种技术进行分类处理、利用。

小题1:结合图和材料分析

小题2:考察污染物对周围环境的危害

小题3:法律手段经济手段技术手段均可

单项选择题 A1/A2型题
阅读理解

阅读理解。

     Sports can help you keep fit and get in touch with nature. However, whether you are on the mountains,

in the waves, or on the grassland, you should be aware that your sport of choice might have great influence

on the environment.

     Some sports are resource-hungry. Golf, as you may know, eats up not only large areas of countryside,

but also tons of water. Besides, all sorts of chemicals and huge amounts of energy are used to keep its courses (球场) in good condition. This causes major environmental effects. For example, in the dry regions of Portugal

and Spain, golf is often held responsible for serious water shortage in some local areas.

     There are many environment-friendly sports. Power walking is one of them that you could take up today.

You don't need any special equipment except a good pair of shoes; and you don't have to worry about

resources and your purse. Simple and free, power walking can also keep you fit. If you walk regularly, it

will be good for your heart and bones. Experts say that 20 minutes of power walking daily can make you

feel less anxious, sleep well and have better weight control. 

    Whatever sport you take up, you can make it greener by using environment-friendly equipment and buying

products made from recycled materials. But the final goal should be"green gyms". They are better

replacements for traditional health clubs and modern sports centers. Members of green gyms play sports

outdoors, in the countryside or other open spaces. There is no special requirement for you to start your

membership. And best of all, it's free.

1. The author thinks the golf is resource-hungry because of the following EXCEPT that _____.

A. Golf wastes large areas of countryside

B. Golf runs out of much water

C. Keeping golf court in good condition needs too much energy

D. Golf is bad for people's health

2. According to the passage, which of the following is an environment-friendly sport?

A. swimming in the pool

B. hiking in the hills

C. playing basketball in the gym

D. motor racing in the desert

3. The reason why the author uses power walking as an example mainly is that ______.

A. it improves our health

B. it is an outdoor sport

C. it uses fewer resources

D. it is recommended by experts

4. The passage is developed mainly by _____.

A. examples and explanation

B. comparison and persuasion

C. facts and descriptions

D. figures and conclusion