The students were having their chemistry class. Miss Li was telling the children what water was like. After that, she asked her students, “What’s water?” No one spoke for a few minutes. Miss Li asked again, “Why don’t you answer my question? Didn’t I tell you what water is like?”
Just then a boy put up his hand and said, “Miss Li, you told us that water has no color and no smell. But where can we find such kind of water？The water in the river behind my house is always black and it has a bad smell.” Most of the children agreed with him.
“I’m sorry, children,” said the teacher. “Our water is getting dirtier and dirtier. That’s a problem.”
【小题1】Miss Li was a _______ teacher.

 The first telephone cards, produced in 1976, were Italian. Five years later the first British card appeared, and now you can buy cards in more than a hundred countries. People usually start collecting cards because they are small and light and you do not need much space for them. It is also a cheap hobby for beginners, although for some people it becomes a serious business. In Paris, for example, there is a market where you can only buy telephone cards, and some cards cost up to ￡4,000.The first Japanese card has a value of about ￡28,000. Most people only see cards with prices like these in their collectors’ magazine.

1. When were the first Italian telephone cards produced?

2.How many countries can produce telephone cards now?

3.Where can we find a market to buy telephone cards?

4.What is the price of the first Japanese telephone card?

5.In which magazine do most people see cards with prices?

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