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2020版初中高中英语语法练习题及答案详解大全---词汇应用（13）
根据短文内容及首字母提示，填写所缺单词，使短文意思完整。
Sweeping city skies
We always check the weather before a trip. But after hearing a lot about air pollution .we often wonder: h___1___ will the air be tomorrow?
On Sept 1, forecasting air pollution started to be on TV. There are six grades, with the first grade meaning excellent air.
The forecast helps us plan trips, and helps the government make plans to stop air p___2___. China is t___3___ its best to clean the air.
Big cities such as Beijing and Shanghai are taking the air pollution seriously first.
On Sept 2, Beijing said it will reduce PM2.5 density (密度) by at l__4___25 percent by 2017.
How will the city make it come t___5____?
Car emissions (排放物) is one of the main r____6___ of PM2.5 in big cities. So fewer cars will be in Beijing next year. It is also asking for congestion fees (拥堵费) from car driving in the city center.
There’s a lot of PM2.5 in waste gas（废气）from factories. Beijing will close some companies . If a company pollutes h___7___, it will have to buy water and electricity at a h____8___price.
In order to have more blue s___9___ , every one of us should also help.
We can help by taking buses i____10___ of cars or taxies. We can also help by giving up smoking.
So from now on, take action and do your part.
【答案】
1.how
2.pollution
3.trying
4.least
5.true
6.reasons
7.heavily
8.higher
9.skies
10.instead
【解析】
试题分析：这篇文章讲的是空气污染的严重性及控制污染的必要性和北京等城市采取的措施。
1.句意：明天的空气会怎么样？根据句意及所给首字母此空应填how。
2.句意：天气预报能帮助我们旅行，还能帮助政府阻止空气污染。根据句意及所给首字母此空应填pollution。
3.句意：中国正尽它的最大努力来清洁空气。根据句意及所给首字母此空应填trying。
4.句意：在9月2号北京说到2017年要把PM2.5值至少减少25%。根据句意及所给首字母此空应填least。
5.句意：这个城市怎样使它成为现实。根据句意及所给首字母此空应填ltrue 。
6.句意：在大城市汽车尾气是PM2.5的最重要的原因之一。根据句意及所给首字母此空应填reasons。
7.句意：如果一个公司污染严重它就不得不更高价格的买水和电。根据句意及所给首字母此空应填heavily。
8.句意：如果一个公司污染严重它就不得不更高价格的买水和电。根据句意及所给首字母此空应填higher
9.句意：为了有更多的蓝天。我们每个人都应该有所帮助。根据句意及所给首字母此空应填skies。
10.句意：我们可以通过乘公共汽车而不是汽车或出租车来帮助。根据句意及所给首字母此空应填instead。
考点：阅读填空
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