The air  Californiais polluted with soot. The officials worry that the air is harmful to the people there. Experts discuss some ways to stop the air pollution.        

     The new plan has strict limits on how much soot can be let into the air. The daily limit of pollution in the air would be cut in half.

     The new plan would affect industry. The limits would also affect people who own wood stoves and fireplaces. The county will record the air quality every day. People would be asked to stop burning wood when the levels are high. They could also have a kind of special fireplace. These fireplaces burn very little wood. They do not pollute the air so much. The officials will punish families who don’t follow the law.

     Some areas do not have much industry. Their pollution problem is not too bad, but they would still have to control the pollution. The experts hope that this will help keep the air cleaner.

     Before the plan becomes a law, the public will have ninety days to give some advice on it. Then it will become a law.

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1.The daily pollution in the air would be reduced by _______, according to the plan.

A 20%

B 40%

C 50%

D 0

解析：选C。C 细节理解题。根据第2段The daily limit of pollution in the air would be cut in half.可知空气污染要减少一半。故选C。

2.How many days will be given to the public to give some advice on the plan?

A 60

B 75

C 90.

D 115

解析：选C。C 细节理解题。根据文章最后1段第1句Before the plan becomes a law, the public will have ninety days to give some advice on it.可知该计划变成法律之前，民众有90天的时间来提建议。故选C。

3.Which of the following is TRUE, according to the passage?

A The county will record the air quality every two days.

B People would be asked to stop burning wood from now on.

C The special fireplaces cause very little pollution.

D It is unnecessary for some areas to control the pollution.

解析：选C。C 细节理解题。根据第3段These fireplaces burn very little wood. They do not pollute the air so much.可知这种特殊的火炉很少污染。所以C正确。

4.What is the correct order? ① A plan is made. ②The air is polluted. ③People give some advice on the plan. ④It becomes a law.

A ②①③④

B ①③②④

C ②③①④

D ③①②④

解析：选A。A 逻辑判断题。根据文章记叙的顺序可知是先有污染，后制定计划减少污染，征求公众意见之后，再变为法律付诸实施。故选A。

5.What is the best tile of the passage?

A A Law to Control Air Pollution Is Being Made

B Air Pollution in the World

C Soot Is Harmful to People

D Fireplaces Produce Less Pollution

解析：选A。A 主旨大意题。综合分析文章可知，本文介绍了一项减少大气污染法律的出台过程。故选A。