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  3. How to Control Air Pollution? Air pollution is one of the most serious problems in the world. Every day, a lot of poisonous

How to Control Air Pollution? Air pollution is one of the most serious problems in the world. Every day, a lot of poisonous

admin2016-10-09  41
问题     How to Control Air Pollution?
    Air pollution is one of the most serious problems in the world. Every day, a lot of poisonous gas from the factories, automobiles and houses is emitted into the air. It not only does harm to our health, but also threatens our surroundings and our daily life. Write a composition of about 200 words on the following topic:
    How to Control Air Pollution?
    You are to write in three parts.
    In the first part, state specifically what your opinion is.
    In the second part, support your opinion with appropriate reasons.
    In the last part, bring what you have written to a natural conclusion or make a summary.
选项
答案 How to Control Air Pollution? Living in Beijing is not at all easy. Citizens have to endure the exorbitant housing and frequent traffic jams. Now, they have to put up with yet another monster-hazy and toxic air. There have been many reports about the low quality of air in Beijing, which raise our concerns about air pollution. To control air pollution, I think we should plant more trees and discourage people from using cars. First of all, forestation is a good way to control the air pollution. With more trees in the neighborhood, the effect of photosynthesis will be more prominent, which helps maintain the oxygen level in the air. People would feel less suffocating with the presence of trees. Besides, trees can keep water and soil and are able to prevent soil from being turned into sands. That is why there are fewer sand storms for an area with forestation. Secondly, citizens should be discouraged to use cars when travelling within short distance. It is reported that cars emit major pollutants, such as green-house gas, into the air. This means the more we use petrol-powered cars, the worse the air quality will be. If we limit our car use, for instance, carpooling and imposing quotas of car ownership, the air quality will be less affected by car exhausts. In conclusion, we could control air pollution through forestation and discouraging car use.
解析     本题属于“问题解决型”作文，涉及的题材是“生态环境”。该题要求考生对“如何控制空气污染”提出个人的意见。按照题目的要求。可谋篇布局如下：
    开头：从在北京生活的困难之处人题，指出有效控制空气污染，应该多植树，并限制使用汽车。
    主体：阐述原因。
    1．植树造林是控制空气质量的好方法。树木能控制水土流失，也能防止土地沙化，减少沙尘暴形成。
    2．市民在短途出行时应少用汽车。通过拼车和限购的方式来限制汽车的使用。
    结尾：我们可以通过植树造林和限制汽车使用来控制空气污染。
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