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B(丹阳)
The air is usually dirty in winter. Smog makes the air dirty. We can find smog in many cities. Smog becomes a big problem(问题) in many big cities. We cannot see clearly in the heavy smog. Sometimes, we cannot drive either.
Smog is harmful(有害的). It makes people ill. Old people have to stay at home. Children cannot play in the playground. They should stay in their classroom. Sometimes, they cannot go to school.
Where does smog come from? Many people think smog comes from coal(煤炭). In winter, factories and homes use lots of coal. Some people think smog comes from cars.
What should we do if(如果) there is smog? We should stay at home and not go outside(外面). And we should work hard to keep our city clean.
( )1. What makes the air dirty in winter in this passage(文章)? A. The smog. B. The coal. C. The smoke from cars.
( )2. What does "smog" mean? A. 水蒸气 B. 烟雾 C. 二氧化碳
( )3. Smog is harmful, so(因此) ____. A. old people needn't stay at home B. people maybe ill C. children can play outside
( )4. Many people think smog comes from ____. A. cities B. cars C. coal
( )5. What's the title(题目) of this passage? A. Keep our city clean B. Move the factories C. Smog in the cities
The air is usually dirty in winter. Smog makes the air dirty. We can find smog in many cities. Smog becomes a big problem(问题) in many big cities. We cannot see clearly in the heavy smog. Sometimes, we cannot drive either.
Smog is harmful(有害的). It makes people ill. Old people have to stay at home. Children cannot play in the playground. They should stay in their classroom. Sometimes, they cannot go to school.
Where does smog come from? Many people think smog comes from coal(煤炭). In winter, factories and homes use lots of coal. Some people think smog comes from cars.
What should we do if(如果) there is smog? We should stay at home and not go outside(外面). And we should work hard to keep our city clean.
( )1. What makes the air dirty in winter in this passage(文章)? A. The smog. B. The coal. C. The smoke from cars.
( )2. What does "smog" mean? A. 水蒸气 B. 烟雾 C. 二氧化碳
( )3. Smog is harmful, so(因此) ____. A. old people needn't stay at home B. people maybe ill C. children can play outside
( )4. Many people think smog comes from ____. A. cities B. cars C. coal
( )5. What's the title(题目) of this passage? A. Keep our city clean B. Move the factories C. Smog in the cities
答案：
1.A 2.B 3.B 4.C 5.C
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