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问题 综合

读图2一5，回答问题。

图2一5

(1）图示地区自然景观以为主＿＿＿＿，成因是＿＿＿＿＿＿＿＿＿＿＿＿。

(2）图示地区最主要的农业生产区是＿＿＿＿＿＿＿＿，发展农业的主导白然因素是＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿。

(3）近年该农业区超强度开发，试分析将会产生什么生态环境问题。

答案

(1）荒漠       深居大陆内部，距海遥远，加之高原、山脉的阻档，降水稀少

(2）河西走廊       水源

(3）如果农业开发超过水资源的承载力，耕（土）地得不到足够的水源灌溉（祁连山的冰雪融水非常有限）,（因气候干旱）在强烈的太阳辐射、蒸发和风力作用下，将出现土地荒漠化问题。

由图示可知该区自然景观以荒漠为主，农业生产区分布在河西走廊地区。结合经纬度可得：①河西走廊深居内陆，受海洋影响小，降水少，灌溉水源是制约该地农业发展的主要因素。②该地区大气降水少，水源缺乏，若农业用水过度，超过了水资源的承载力，加上该地强烈的太阳辐射、旺盛的蒸发、大风等作用，便会产生土地荒漠化问题。

判断题

触电事故一旦发生，首先要使触电者迅速脱离电源。
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单项选择题

Ask someone what they have done to help the environment recently and they will almost certainly mention recycling. Recycling in the home is very important of course. However, being forced to recycle often means we already have more material than we need. We are dealing with the results of that overconsumption in the greenest way possible, but it would be far better if we did not need to bring so much material home in the first place.
The total amount of packaging increased by 12% between 1999 and 2005. It now makes up a third of a typical household’s waste in the UK. In many supermarkets nowadays food items are packaged twice with plastic and cardboard.
Too much packaging is doing serious damage to the environment. The UK, for example, is running out of it for carrying this unnecessary waste. If such packaging is burnt, it gives off greenhouse gases which go on to cause the greenhouse effect. Recycling helps, but the process itself uses energy. The solution is not to produce such items in the first place. Food waste is a serious problem, too. Too many supermarkets encourage customers to buy more than they need. However, a few of them are coming round to the idea that this cannot continue, encouraging customers to reuse their plastic bags, for example.
But this is not just about supermarkets. It is about all of us. We have learned to associate packaging with quality. We have learned to think that something unpackaged is of poor quality. This is especially true of food. But it is also applied to a wide range of consumer products, which often have far more packaging than necessary.
There are signs of hope. As more Of us recycle, we are beginning to realize just how much unnecessary materials are collecting. We need to face the wastefulness of our consumer culture, but we have a mountain to climb.

What does the underlined phrase"over-consumption’refer to

A. Using too much packaging.
B. Recycling too many wastes.
C. Making more products than necessary.
D. Having more material than is needed.
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