任務型閱讀。 閱讀短文，按要求完成短文后的各項任務。

Smog is a big problem in many Chinese cities. But it seems that besides wearing a mask, few of us know what has caused the smog and what to do to beat it. In fact, burning too much coal and oil are the main causes of PM2.5 and smog (霧霾).
To solve the problem, we should clean our coal and oil or replace them with cleaner energy such as natural gas. We ordinary people can do something to help control smog, too.

What can we do to help beat the smog?

Choose to take public transportation. Though many people have their own cars, they had better take public transportation, such as the subway or buses. If the destination (目的地) is not far away, you can also walk ________ ride a bike.

Call the hotline 12369. You can call the number for complaints and questions about environmental issues. It is run by China’s Ministry of Environmental Protection. If you call the number, some officers can come and try to solve the issues, so please remember it.

Report and resist pollutant source. If you find any pollutant source, take a picture of it and post it on your social media accounts. Remember to add “@local environmental departments” on weibo. Pay attention to factories that pollute the environment and don’t buy products from them.

Our environment will become better if everyone is concerned (關注) with the environment. This is what we need in the future. So everyone can do something to beat smog.

1. What are the main causes of PM2.5 and smog according to the passage?

_______________________________________________________________________

2. 根據(jù)文章內(nèi)容補全句子：

If you have environmental issues, you can _____________________________________.

3.將句中橫線處空缺的一個單詞填出使句意完整。

If the destination is not far away, you can also walk ________ ride a bike.

4.從文中找出與下面句子意義相近的句子

If all of us keep an eye on the environment, the world will become more beautiful.

________________________________________________________________________

5.將文中畫線句子譯成漢語：________________________________________________

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