阅读下列短文，从每题所给的A、B、C和D项中，选出最佳选项。 Our school is a green school．What makes it green？ First，we have a lot of trees．There are trees in front of and behind every building．Some trees are green only...

题型：阅读选择题类：常考题难易度：普通

广东省广州市黄埔区2017-2018学年七年级上学期英语期末考试试卷

阅读下列短文，从每题所给的A、B、C和D项中，选出最佳选项。

Our school is a green school．What makes it green？

First，we have a lot of trees．There are trees in front of and behind every building．Some trees are green only in spring and summer．And some are green all year round．The trees make our school look like a big forest.

And our school is a green one because we "go green". How do we go green？We have two green days every month．On green days，no students or teachers go to school by car．And we have clean﹣up Day every month．That day，students go to streets to pick up rubbish．Also，we have tree﹣planting Day every spring．We plant young trees on hills．We have three green clubs The members of the clubs look after those trees well．

Green is not only a colour．It is about life．Please go green with us and make the world a more beautiful place．

（1）、How many green days do we have every month？ .

A、One day B、Two days C、Three days． D、Four days

（2）、Students go to streets to do some cleaning on .

A、green days B、tree﹣planting Day C、clean﹣up Day D、Saturdays and Sundays

（3）、 look after the young trees well．

A、Teachers B、All students C、Parents D、Green clubs

（4）、The writer mainly wants to tell us ．

A、her school is very beautiful B、there are many trees around her school C、we should do something to make the world beautiful D、she likes her school very much

（5）、What is the best title（标题） for the passage？ .

A、Going Green B、Green Days C、Planting Tree D、Love Your School．

举一反三

   Most people want to be happy, but few know how to find happiness. Money and success alone do not bring lasting happiness. Aristotle, a Greek thinker, said, “Happiness depends upon ourselves.” In other words, we make our own happiness. Here are a few suggestions to help you be happier.
   The first secret of happiness is to enjoy the simple things in life. Too often, we spend so much time thinking about the future —for example, getting into college or getting a good job —that we fail to enjoy the present. You should enjoy life's simple pleasures, such as reading a good book, listening to your favorite music, or spending time with close friends. People who have several close friends often live happier and healthier lives.
   Another secret to living a happy life is to be active, and have hobbies where you forget your problems and time. Many people experience this dancing, or playing a sport, such as swimming. You can forget about your problems, and only think about the activity. Finally, many people find happiness in helping others. Studies show that people feel good when they spend their time helping others. If you want to feel happier, do good things for someone. You can help a friend with his or her studies, go shopping to buy food for an elderly person, or simply help out around the house by washing the dishes.

Fun Facts about animals

●After killing an animal, a cheetah waits half an hour to catch its breath.	●The biggest horses are the Shire horses. The tallest on record is 198cms from shoulder to leg.	●The only mammal that can fly is the bat. Bat's wings are overgrown hands.
●Gorillas are actually very gentle animals although they have bad reputation (声誉). ●Gorillas build nests in tree tops to sleep in.	●The rhino has the thickest skin of any animal. Its skin is 2cms thick and covers their body like armor.	●An elephant's trunk has no bones in it, only 100,000 muscles!!! ●Elephant babies take 22 months to develop inside their mothers before they are born.
●A kitten is born blind and helpless and stays close to its mother for protection. In just nine weeks, it can grow big enough to leave its mother and look after itself.	●A camel's hump is actually used to store food. It is made of extra (多余的) fat. ●They have long legs to keep them as far away from the ground as possible	● Bears usually walk on 4 legs, but when they are frightened, they stand up and walk on two legs to make themselves appear bigger.

    Yang Nan, 17, was happy to move to her new home in a northern area of Beijing. She was told that her neighborhood used to be rich farmland planted with vegetables, corn and wheat. But looking at the new road, beautiful parks and supermarkets, to her surprise, Yang couldn't see any sign that food was once grown there.
    Yang is not alone. In recent years, many Chinese people have moved into new houses in country areas. Tall buildings have been built everywhere in the suburbs. The crops and fruit trees are no more grown there. But these changes have caused big problems too, warns Gan Zangchun, an official（官员）at the Ministry of Land and Resources(国土资源部）．
    "Chinese cities are growing very fast. This has made the area for farmland much smaller than before. This is really bad for the country's ability to grow food, not to mention the lives of farmers," said Gan last Monday.
    As the population of China is growing all the time, the country needs more farmland to grow food for the increasing people of China. But the recent rise in house prices has made selling land a good business. A lot of land has been used to build new houses for sale. So you can see, the shortage of the farmland is now a very serious problem.
    Pollution, such as, oil pollution, industrial(工业) pollution and water pollution, which makes land useless, is another reason for the big drop in China's farmland. About 2.67 million square kilometers of land in China have been polluted and turned into desert.
    Today, can we use less farmland to grow enough food for more people? Of course not! The government wants China to have at least 120 million hectares（公顷） of farmland. Only in this way can we raise such a big population. But there are only about 121.8 million hectares left. "It will be really difficult to reach the goal", Gan said. He said that the government would fight illegal(非法的) land use and something useful must be done to stop farmland from becoming desert.

阅读理解

What was discovered by accident? The answer is penicillin(青霉素). It kills germs. By killing germs, it saves lives. Suppose you are sick. You go to a doctor. She examines you. She says you have a "staph" infection(葡萄球菌感染). She gives you some medicine. You take it. The medicine knocks out the staph. Soon you are well. Before penicillin, this would not happen. Staph was almost sure death.

Everyone wanted a medicine. Laboratories worked day and night. They grew the staph in small dishes. Then they tried to kill it. Nothing worked.

The laboratory dishes had covers on them. They kept things from falling into dishes. Molds(霉菌)were a big worry. They are always in the air. You can't see them. They're too small .There are thousands of different molds. Molds can make an experiment (实验)fail. That's why dishes are covered.

Dr. Alexander Fleming was working to kill the staph germ. He worked for years. One day he took a cover off a dish. He looked inside. There was a thick growth of staph germ. There was also some mold. Then he saw something strange. Where the mold was, there was no growth of staph. This is what Fleming probably thought. "By accident, I found a mold to kill the dreaded staph."

This is how penicillin was found. But here's the real miracle(奇迹). There are thousands of kinds of molds. But only one kind can kill staph. The mold must have fallen into the dish a few days before. The cover was probably off only a few seconds(秒). In those few seconds the right mold fell into the right dish. Another mall might have thrown the dish away. But Fleming was very careful and smart. He understood what the mold did. How lucky the humans were!

阅读理解

Many objects in the universe are invisible, but they send radio waves. The radio telescope* thus appeared, and it is considered one of the greatest inventions in the twentieth century. Reber built the world's first radio telescope in 1937. Ryle and Hewish developed radio telescope systems for the location of weak radio sources, and they shared the Nobel Prize for Physics in 1974.

A radio telescope is usually made up of:

One or more antennas to collect the radio waves. Most antennas are made in the shape of a dish to collect and reflect, the radio waves to the sub—reflector, in the same way as a curved mirror focuses visible light to one point.

A receiver and amplifier to receive the radio waves from the sub—reflector, and make these weak radio waves strong enough to be recorded and turned into electronic signals. To make an amplifier sensitive enough, it is usually cooled to, very low temperatures (e. g. as low as —270℃）.

A recorder to keep a record of the electronic signals. Most radio telescopes today keep the signals to the computer's memory disk for astronomers to analyze later.

Radio wavelengths are much longer than those of visible light, and the radio waves from deep space are always weak. To catch Radio wavelengths are much longer than those of visible light, and the radio waves from deep space are always weak. To catch these waves, radio telescopes usually have huge antennas. The sizes of most antennas in use today are around 50 to 300 metres in diameter. The antenna of FAST in Guizhou, China, the latest and largest radio telescope in the world, is 500 metres in diameter, as large as the size of 30 football fields.

To avoid interferences, and keep the telescopes sensitive, radio telescopes are built in places where there are no human radio waves or electronic signals. For example, FAST is 5 kilometres away from the closest village and 25 kilometres away from the nearest town.

Radio telescopes create pictures of the sky, not in visible light, but in radio waves. This is extremely useful, because there are objects that can't be seen, objects that we wouldn't even know without radio telescopes.

阅读下面短文，从每题所给的A，B，C三个选项中选出最佳选项。

Inventions usually make a big difference to people's lives. Do you have any great inventions at home? Do they help you a lot in your life or bring you much fun? Here are some of the most useful inventions in families according to a survey.

	The most helpful and creative invention for kids is the reading pen. With the specially-designed pen, kids find it convenient and fun to learn. Little kids can learn a lot including story-telling, poems and music. They start learning by touching the contents in the books with the pen. This way kids can learn by themselves. They are also great helpers for primary school students after school.
	Mopping robots (扫地机) are popular with people who are too busy to do housework. They are more popular with office ladies. They can help people clean dirt, dust and hair easily. With the help of them, people don't need to spend much time on housework. They can enjoy a more relaxing life after work.
	As for old people, an electric foot basin (电动洗脚盆) is the best invention. It's a good choice to buy one for your grandparents. It can help keep their blood pressure normal and improve blood circulation (循环). The special basin can keep the water help old people become healthier and warm. So washing feet with it will more relaxed.

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