Why do plants grow in some places and not in others? Why does some land have so much growing on it, while other land has almost no plants growing on it at all?
To grow, plants need several things. One is warmth. In very cold places almost nothing grows. Plants also need water. In very dry parts of the Earth only a few unusual plants can grow. That’s why dry deserts everywhere are almost not covered by trees or grass.
Plants must also have a place in which to put down their roots and grow. They find it difficult to grow on hard land. The town is built on hard land. The plants here have only the soil (土壤)found between the cracks of the stones to grow in.
Another thing plants must have before they can grow is food.
What will happen if we try to make things grow on the sandy beach? A few plants, such as beach grass, will grow in sand, but most plants won’t. Even if the weather is warm enough and we water the plants each day. Many of them will die because the sand on this beach has almost no food for plants.
【小题1】According to the passage, plants need _____ things to grow well.

Air is all around us. It is around us as we talk and play. From the moment we were born, We are surrounded(围绕)by air. When we sit down, it is around us. When we go to bed, air is also around us. Wherever we are on the earth, We are surrounded by air. We live in air.
All living things need air, living things can’t live without air. We can go without food or water for a few days, but we can’t live for more than a few minutes without air. We breathe(呼吸)in air. When we are working or running, We need more air. So we breathe faster than usual. When we are asleep, We need less air.
【小题1】From the text, we know that on the earth _____

Water is very important to living things．Without water there can be no life on the earth．All animals and plants need water．Man also needs water．We need water to drink．to cool our food and to clean ourselves．Water is needed in offices，factories and schools．
Water is needed everywhere．There is water in seas；rivers and lakes ,Water is found almost everywhere．Even in the driest part of the world．there is some water in the air．You cannot see or feel it when it is a part of the air．The water in the seas，rivers and lakes is a liquid。The water in the air is a gas，and we call it water vapor．
Clouds are made of water．They may be made of very small drops of water．They may also be made of snow crystals(结晶体)．Snow crystals are very，very small crystals of ice．Ice is frozen water．It is a solid．There can be snow and ice everywhere in winter．
(   )4．Where Can we find water?
A．We can find water when it turns into vapor．
B．Water can be found almost everywhere
C．We can see water in deserts here and there．
D．Water is only in seas and rivers．
(   )5．We must protect water resources because       ．
A．crops need water        B．all living things need water
C．all animals need water    D．all plants need water

【小题1】_____________ (luck), he found his lost key in the reading room.
【小题2】It is reported that they ___________ (donate) 20 million yuan to China Red Cross since last year.
【小题3】The TV play My Ugly Mother is well worth ______________ (see) again.
【小题4】My sister said that the capital of China ____________( be) Beijing .
【小题5】It’s much____________(excite) to surf the Internet for teenagers.
【小题6】They have done what they can_________ us stop the sandstorm. (help)
【小题7】Plants need CO2 when they grow , so they can make CO2_______________(little) in the air.
【小题8】Do you know the two ____________ (thief) names?
【小题9】Green can make you feel _______________ ( energy ).
【小题10】Zhang Jike shouted with _____________ (excite) when he got the first prize in the World Table Tennis Championships（锦标赛） several days ago.

根据短文内容，判断句子正（T）、误（F）。

Most animals are helped by people. They can’t live without us. But sometimes people have made the environment worse. For example, in some parts of the world the forests are being cut down.

The animals in the forests have become fewer and fewer. People hope to grow more food on the land, but the wind blows the earth away. Now forests become smaller and smaller, the soil becomes poorer and poorer. Now there are fewer animals and plants in the world. Insects (昆虫) are usually killed, but some plants need insects. Their seeds (种子) can’t spread without them. Birds eat insects, and without insects many kinds of birds will die.

There are hundreds and hundreds of plants and animals, and each plant is helped by another, so does each animal. If you hurt one, you will hurt another, then another. Scientists know this well. They don’t want people to break their environment.

1.It isn’t good for our environment to cut down forests.

2.Animals in the world are becoming fewer and fewer.

3.Animals and plants helped by each other.

4.After the wind blows, the earth becomes richer and richer.

5.This article tells us it is important to make our environment worse and worse.