Thesunishuge,hotandbright(明亮度).Itisimportantbecausenoth...

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The sun is huge, hot and bright(明亮度). It is important because nothing can live without it. The sun gives us light(光) 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 can not make our own food, but plants can. All the food we eat comes from plants in a food chain(链) and it starts with the sun. For example, animals need sun-light, too. Just like us, their food comes from a food chain. The food chain begins with the sun and the plants.

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(照耀) through the clouds.

1. Which is the best title(题目) of this passage?

A. Plants B. A Food chain C. Living Things D. The Sun

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 it is cloudy?

A. Because we can see all day and all night.

B. Because the sun can’t give us light all day |b|1

C. Because the sun light 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(地球) B. a food chain; sun C. food; sun D. plants; star(星)

5. _______ can live without the sun.