The population of the Earth is growing faster. It is important that we look after the Earth. We need it!

The Earth gives us a lot of things. We also give the Earth a lot, but some of the things are not good.

In nature, when something dies, other animals and plants get food from it. Every animal or plant gives food for other animals or plants. However, animals can’t get food from many of the things that we ‘give’ the Earth. Animals and plants can’t eat metal, plastic and glass. These things will stay in the ground for many, many years.

    Some rubbish is very dangerous for plants and animals. In some places, many animals live together. One animal makes food for many more animals. If we put rubbish and chemicals in the water, the plankton(浮游生物) can die. If there isn’t any plankton, many animals have nothing to eat.

    So what can we do? Don’t leave any rubbish in the countryside! Don’t make so much rubbish!

1. The Earth gives us ___________.

    A. food         B. rubbish              C. chemicals        D. pollution

2. When something dies in nature, _________.

    A. water and grass are polluted             B. plastic and wood become food

    C. other animals and plants get food        D. metal and glass stay in the ground

3. We must _______ to look after the Earth.

    A. put metal in the ground              B. use more wood

    C. keep frogs in the water              D. make less rubbish

A science book gives facts. Some science books tell us about animals. Some tell us about plants. Some tell us about outer space. This page tells us about animals.
Do you know that not only the fish but also some animals live in the sea? For example, the whale is not a fish. It can't breathe in the water. It swims in the water. But it comes up for air.
The blue whale is the world's biggest animal. There are other sea animals, too. One is called the dolphin. Dolphins need air to live. They breathe air, as whales do. Dolphins are very clever. They sometimes seem to speak to each other.
Many other animals live near the sea. Seals (海豹) and otters（水獭）love the sea. They swim and play there, They eat smaller fish and sea plants. Seals and otters have thick fur. The fur keeps them warm.
【小题1】The passage mainly tells us about _______.

Hong Kong has about forty public beaches. Some of them are very famous around the world. People can go there for a swim. You can go to them by bus. To go to some beaches yu must take a boat.
You will swim there without danger if you remember these instructions:
?Never swim alone.
?Never go out in a boat if you cannot swim.
?Never swim after a meal or when you feel hungry or tired.
?Don’t stay in the water too long.
Remember:A red flag means that it is dangerous for anybody to go into the water.A blue flag means that it is dangerous for children.
根据短文内容，判断下列各句正误。正确的在题前括号内写“T”，错误的写“F”。
【小题1】There are about 40 public beaches in Hong Kong.
【小题2】You should swim after a meal.
【小题3】You can take a bus to go to most of the public beaches.
【小题4】You’d better swim when you’re alone.
【小题5】If you were a child, you could swim when you saw a red flag.

阅读短文， 在空白处填上一个适当的词，使短文在意义上和结构上完整，将答案写在答题纸上。（共5分）

One day, Kidom and his friend Dick went to the river fishing. Kidom took his dog Vick with him. But now and then, when the dog saw a small animal or a bird, he would run1 it and try to catch it. Dick hated the dog very much because the dog frightened the fish away. "Why do you2your dog here?" said Dick to Kidom. "he3here and there. All the fish are frightened and swim4 ." "You are right." answered Kidom. "Next time, I shall come without Vick. Shall we go home now, Dick?" Just then Dick shouted, "Wait. A5is biting (咬)my line. I can feel it." Dick was very glad. He forgot the danger. He went to pull the line. The boy fell down into the water. "Help! Help! I can't swiim." Dick shouted, up and down in the water .

But Kidom could not swim, either. Just then Vick came up. The dog jumped into the water and pulled Dick onto the dry land by biting 's shirt with his teeth. Dick was saved. He was still holding the line in his hand. On its end was a big fish.

1.__________

2.__________

3.__________

4._________

5.___________