摘要: Drills: What are they? How many colors do you like?

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The bicycle is really and important means of transportation in China.Bicyclese have become more and more popular in China.People ride bikes to their workplaces,to shopping centers,to schools,and so on.During the rush hour,you can often see a boiling sea of bicycles running in all directions.With the largest number of bike riders in the world,China is often referred to as the kingdom of bicycles.There are many advantages(优点) about the bicycle.For example,bicycles do not cause air or sound pollution(污染);compared with cars,bicycle cause no environmental(环境的) problems;bicycles save energy(能源) and parking place;riding bikes to travel can be a wonderful experience(经历);the bicycle allows us to go anywhere nearby easily;bikes are not very expensive,and almost every family can afford them;riding bikes regularly does good to people's health.

  通读短文,然后根据短文内容回答问题。

1.Why is China called the kingdom of bicycles?

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2.Can we go anywhere easily by bicycles?

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3.Why can almost every family afford bicycles?

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4.What do you think the most popular means of transportation in China is?

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5.What are the advantages of the bicycles?You can give one or two examples.

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                                                 WHY IS THE SUN IMPORTANT?   
     The sun is a huge, hot, bright star. It is important because without it there would be no life on Earth. The
sun gives us light and heat.
     All living things need light and heat from the sun to live. Plants need light and heat to grow. They use the
light from the sun to make food. We cannot make our own food, but plants can. All the food we eat comes
from plants in a food chain (链) which starts with the sun. For example, 
                               
     Animals need sunlight, too. Just like us, their food comes from a food chain which begins with the sun
and the plants.   
     sun→ leaf→ caterpillar (毛虫)→bird   
     sun→ seaweed (海藻)→small fish→ whale (鲸)   
     Sunlight means we can see during the day. If there was no sun, it would be dark all the time. Even when
the sky is cloudy, the sunlight is very strong and it shines through the clouds.
1. Which words tell us what the sun is like?   
A. Huge. (大的)
B. Hot.
C. Bright.
D. All above.   
2. What are the two main things the sun gives us?   
A. Light and heat.
B. Heat and eggs.  
C. Corn and light.
D. Wheat and bread.   
3. Why can we still see during the day when the sky is cloudy?   
A. Because we can see all day and all night.   
B. Because the sun can't give us light all day long.   
C. Because the sunlight can shine through the clouds.   
D. Because we can't see at night.   
4. All the food we eat comes from _____. And it starts with the _____.   
A. plants; earth
B. a food chain; sun   
C. food; sun
D. plants; star   
5. In what way do you think the sun cannot be harmful (有害的)?   
A. The sun can do harm to your eyes and skin.   
B. It can make rivers too dry.   
C. Without it there would be no life on Earth.   
D. Hot sun on dry land can cause fires.
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