其枫

The sun is a huge1， 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 chain2. The food chain starts with the sun. For

example：

Animals need sunlight3 too. Just like us， their food comes from a food chain and the food chain begins with the sun and the plants.

Sun→leaf→caterpillar4→bird

Sun→seaweed5→small fish→whale6

Sunlight means we can see during the day. If there was no sun， it would be dark that it shines through the clouds.

Exercise：

I. Answer the following questions.

1. What is the sun like？

2. Why is the sun important？

II. Fill in the missing words.

1. All living things need light and heat from the sun to ________.

2. All the food we eat comes from plants in a food ________ and it starts with the ________.

3. Sunlight means we can see during the ________ even when the sky is cloudy.