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Look, it’s our Earth. There ____ some water, hills and trees on it. We shouldn’t ____ water. Because in many places, there is not ____ water.

We also ____ cut down too many trees. We should ____ more trees. They are ____ for the air. People like using ____ bags in the supermarket. But I think they’re bad for the Earth. We should use ____ bags and boxes. The Earth is our ____. We should ____ it.

Do you want to stay healthy? Let me tell you how to have a ______ diet (饮食).

In the morning, you can eat ______ bread, cakes and eggs. You should drink a glass of milk. It’s very important for you because it can ______ you much energy (能量). It isn’t good for you to go to school or work without breakfast.

You must feel very hungry at lunchtime. So you have something good ______ lunch. You can have some ______ or chicken. Vegetables, such as carrots and tomatoes, are also very important ______ they can keep you healthy.

In the evening, you must be tired. You should eat things ______ noodles or others with some vegetables. But remember not to eat too much because you can’t do ______ exercise in the evening. ______ going to bed, you can have a glass of milk. It can help you sleep well.

At last, you should eat more ______. People often say, “An apple a day keeps the doctor away.”

We have only ______ Earth. We get land, air and water ______ the Earth. We should take care of them. We ______ keep them clean. Farmers grow food on land. Food from dirty land is ______ for us. We should keep land ______. We cannot build too ______ houses. There is not much land on Earth for farming. We should save land. Water is useful. We drink it and use it ______ many things. But there ______ much water in many places. In some places, dirty water from factories ______ the rivers dirty. People shouldn't ______ water.

Look! It's our Earth. There _______ some water, hills and trees on it. We shouldn't _______ water, because there is not _______ water in many places. We also______ cut down too many trees. We should _______ more trees. They are _______ for the air. People like using _______ bags in the supermarket. But I think they're bad for the Earth. We should use _______ bags and boxes instead.

The Earth is our ______. We should ________ it.

We have only one _____. We get land (土地), air and water from the Earth. We should _____ these things. We should keep _____ clean.

Farmers grow _____ on land. Food from _____ land is bad for us. We should keep the land clean. We cannot build too many houses. There is not much land _____ Earth for farming. We should save land.

We all need water. We cannot live _____ water. We drink it and use it _____ many things. But there is not much water in many places. In some places, dirty water from factories pollutes (污染) the rivers. Some people waste water.

We should take care of the _____ too. We need it to _____.

Pollution(污染) is a very _______ problem(问题) in the world today. In many places, people throw rubbish into _______ and rivers, so the water is very dirty. In many _______, the air is dirty. This makes people _______ and more people are going to be hurt in the future(将来). Pollution harms(伤害) _______ too. It kill(杀) many animals every year. If we do not improve (改善) the environment, pollution will _______ more animals. There is some _______ news (新闻) for us. There will be a show at school this Friday evening. All of us will think about the _______ around us. On _______, we are going to show how to protect the environment. If we _______ together, we can make the world a better place.

I am writing to tell you something about the streets in our city. I live _______ Tianjin Road and we are asked to put our rubbish in _______ bins. We should put paper in the blue bins and glass in the brown bins. This is a good habit in theory(理论), but it doesn’t work.

People do not put their rubbish in the _______ places, so the streets are always full of _______. I have two new ideas. First, make sure that the rubbish is collected early in the morning. Second, _______ have a competition(比赛) for the cleanest street?

________ can we protect our Earth? It become a problem (问题) in the world.. Our Earth is just like our mother. We must love ________. We can’t litter. We ________ cut down too many trees. We can move factories ________ from our city. To keep the air clean, we shouldn’t drive too __________. Then the Earth will be more and more beautiful.

Mr Smith is a teacher. His office is not far _______ his home, but he always _______ to work every day. Mr Smith likes his car very much, so he often _______ his car and he uses a lot of water _______ it. He tells Mrs Smith, “I must keep my car _______.” Mrs Smith says to Mr Smith, “You shouldn’t wash your car too often. You shouldn’t _______ too much water.” Mrs Smith goes shopping every day. She goes to the shopping centre _______. She likes walking. She thinks it’s _______ for her health(身体).

   There are many ways for us to reduce(减少) waste. We can reuse paper and plastic bags. We can also reuse newspapers, glass and cans to _______ new things. Here are some useful ways to _______ waste.

You may have some old clothes. There are many poor families in China. You may ask your mother to _______ your old _______.

Then you can give them to those poor children. You will feel _______ because you help others.

We should make better use of our resources. Then we’ll have less waste.