根据短文内容的理解，选择正确答案。 Why do plants grow in some places and not in the others? Why does some land ha...

题型：阅读选择题类：常考题难易度：普通

安徽舒城晓天中学2015-2016学年八年级下学期英语期中试卷

根据短文内容的理解，选择正确答案。

Why do plants grow in some places and not in the 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 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.

（1）、What does the underlined word "cracks" mean in the text?

A、缝隙 B、表面 C、夹层 D、底部

（2）、The reason why most plants can't grow on the sandy beach is that _______.

A、there isn't enough sunlight B、there is too much water C、it is too crowded there D、it has little food for plants

（3）、The passage can most probably be found in a _______ book.

A、science B、history C、travel D、maths

（4）、How many things mentioned above do plants need in order to grow?

A、Two. B、Three. C、Four. D、Five.

举一反三

    Do you know why different animals or insects have their special colors? Colors are used mainly to protect themselves.
    Why can't some birds easily catch locusts（蝗虫）? It is because locusts change their colors together with the change of the colors of crops. When crops are green, locusts look green. But as autumn comes, locusts change to the same brown color as crops have. Some other insects with different colors from plants are easily found and eaten by others. So they have to hide themselves for lives in the day and appear only at night.
    If you study the animal life, you'll find the main use of coloring is to protect themselves. Bears, lions and other animals can't be easily seen by hunters. This is because they have the colors much like the trees.
    Have you ever noticed an even more strange thing? A kind of fish in the sea can send out black liquid when it faces danger. While the liquid spreads over, its enemies can't find it. And it quickly swims away. So it has lived up to now though it is not strong at all.

We each have a memory(记忆力). That's why we can still remember things after a long time. Some people have very good memories and they can easily learn many things by heart, but some people can only remember things when they say or do them again and again. Many of the great men of the world have got surprising memories.
A good memory is a great help in learning a language. Everybody learns his mother language when he is a small child. He hears the sounds, remembers them and then he learns to speak. Some children are living with their parents in foreign countries. They can learn two languages as easily as one because they hear, remember and speak two languages every day. In school it is not so easy to learn a foreign language because the pupils have so little time for it, and they are busy with other subjects, too.
But your memory will become better and better when you do more and more exercises.

根据短文内容，选择正确答案。

Hurricanes(飓风) are storms. They can cause terrible waves, wind and rain. They happen in the Atlantic Ocean and the Pacific Ocean most of the time.

Category(类别)

·Scientists divide(划分) them into five categories according to the wind speed.

·A Category 5 hurricane can destroy(摧毁) all the buildings.

Characteristic(特征)

·Hurricane Season usually comes on June 1^st and ends on November 30^th in the Atlantic Ocean, from May 15^th to November 30^th in the Pacific Ocean.

Danger

·It can cause flood when a hurricane comes with heavy rain.

·A hurricane has an eye. The eye means the center of a hurricane. After the eye passes, the wind and rain comes again.

Safety advice

·Stay inside during the Hurricane, or you'll be injured.

根据表格内容，选择最佳答案。

Robots seem to be getting cleverer and cleverer. Here are four examples.

Budgee

·He was created by Five Elements Roboties.

·With two wheels and a little basket, he can carry things for you while you're at the shops.

Paro

·He was made by Takanori Shibata.

·He is used on patients in hospitals.

·He can learn a name and even show feelings such as surprise, happiness and sadness.

Rover

·He was created by a team at Sydney University.

·He is used to make cows move together from a field to a diary（牛奶场）.

Simon

·He was developed by the Georgia Institute of Technology.

·He can clean up offices.

·In tests, he could tell whether someone was paying attention to him or not.

阅读理解

Imagine a perfect day: the weather is good and everything seems fine. When, suddenly, your mobile phone loses its signal, the television has no programs, and you can't get online with your computer.

What has happened? These are just the types of problems a solar storm（太阳风暴）might cause. You may not think of storms as putting our society in danger. But today, a solar storm is as serious as other bad events, such as earthquakes.

A solar storm is caused by solar flares（太阳耀斑）: large explosions（爆炸）near the sun that can give off lots of energy. The strong energy can stop the satellite systems（卫星系统）that control our computers, telecom networks and so on. These storms can even cause the power to go out for weeks or months.

In the past few months, scientists have recorded some of the strongest sun flares in years. The most recent one happened around Valentine's Day, 2011. It caused radio and satellite signals to go down in some northern cities in China.

“Solar flare activity is going to be much worse than what we've seen in the past. We're not talking about a few cities losing power, it could be half of the country, maybe more.” SolarStormWarning.com, a US website about space weather, warned.

Scientists say that little can be done to predict such a storm. Governments around the world are trying to work together before the next storm, although they are not sure when that may happen.

阅读理解。根据短文内容，选择正确答案。

It's important to learn things about protecting environment. Here's a 4Rs rule for us.

Reduce

If you want to reduce waste, you should use things wisely (明智的). A large number of trees are being cut down to make paper. If everyone uses paper carelessly and then throws it away, soon we would not have any trees left. Some other things are also being wasted, and people don't know what to do with waste in big cities, so it's necessary to reduce waste.

Reuse

You should always think of reusing the usable (可用的) things before throwing them away. Give your clothes or things you don't use to the poor. In a family, you may pass such clothes on to your younger brothers or sisters.

·Recycle

Bottles, cans and paper can easily be recycled. By doing so we save lots of time and money, for example, cola cans are sent to a factory, where they're smashed flat（压平）and smelted (熔化), and the metal things are made into new cola cans.

Repair

If one of the legs of your table is broken, you can repair it. If you want to change for better ones, it's better for you to sell the old ones or give them to other people who can use them after doing some repair.

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