阅读理解D The earth moves round the sun , and the moon moves round the earth . When our part of the earth fa...

题型：阅读选择题类：常考题难易度：普通

四川省资阳市雁江区2017-2018学年八年级上学期英语期中考试试题

阅读理解

The earth moves round the sun , and the moon moves round the earth . When our part of the earth faces the moon , it is night .

The sun is much bigger than the moon . But sometimes the moon looks bigger than the sun , because it's much nearer to the earth

The sun is very bright . It gives off very strong light . The moon looks quite bright , too. But it doesn't give off any light at all .

The moon looks much bigger and brighter than the stars . But actually the stars are much bigger and brighter than the moon . They look smaller than the moon because they're much farther away from us .

（1）、 moves round. ________.

A、The earth ; the moon B、The moon; the earth C、The moon; the stars D、The sun; the earth

（2）、Sometimes the moon looks bigger than the sun , because .

A、It is much bigger than the sun B、It comes out only at night C、It is much nearer to the earth than the sun D、it doesn't give off strong light

（3）、The sun .

A、is very bright , and it gives off very strong light B、isn't very bright , but it gives off very strong light C、is very big , but it doesn't give off any light at all D、is round , but it can't move round

（4）、The stars .

A、look much bigger than the moon B、look much bigger than the sun C、are brighter than the moon , but they are not bigger than the moon D、are much farther away from us than the moon

（5）、Which of the following is NOT true?

A、The moon gives us more light than the sun . B、The stars are much brighter than the moon . C、When our part of the earth faces the moon , it is night . D、The stars are farther away from us than the moon

举一反三

阅读理解
    A desert is a very dry land where there is hardly any rain. In the day, it can be so hot that you could fry an egg on the ground. But during the night it is sometimes so cold that water would turn into ice.
    Many deserts are covered in sand. But some have mountains, rocks, or lakes that have dried up in the heat. The Great American Desert has cliffs（悬崖）that have been made into amazing and beautiful shapes by the wind. The Sahara Desert in Africa is mostly sand. The Australian Desert has red sand.
    Sometimes it does not rain for a whole year in the desert. But there is water deep under the ground and some plants have roots that go very deep to find it. Other plants have roots that spread out a long way so they can suck up the rain as soon as it falls. One desert plant is the cactus, which has long, spreading roots. The cactus stores water inside its hard skin. This skin protects it from heat and cold. Camels are a bit like cactus plants! They store water too—inside their bodies. They have special fur which protects them from the sun during the day and keeps them warm at night.
    Some other animals live in deserts, too. They have to be very good at seeing and hearing because most of them only come out at night. This is why many desert animals have extra big eyes or ears. A desert fox has bigger ears than a normal fox. A gerbil has huge eyes, so that it can see at night. It stays cool in the day by staying underground, like most desert animals.
    Some people live in the desert but they always make their homes near an oasis. An oasis is where water comes from an underground river. Near an oasis, people can grow lots of plants and keep animals.
    Life is hard in the desert, for people, animals and plants. But desert people like to live there.

单词拼写。

People and animals live in the same world. We should keep the balance（平衡）b{#blank#}1{#/blank#} people and animals. If the balance is destroyed，there will be bad result to both people and animals. Wild animals are friends of people. We have to p{#blank#}2{#/blank#} them， or there will be no wild animals in the future. Now we know that there are n{#blank#}3{#/blank#} 2，000 nature reserves(自然保护区) in China

There is a black and white animal l{#blank#}4{#/blank#} in China. It is always known as the national treasure(国宝) of China. Everyone knows it is c{#blank#}5{#/blank#} Giant panda. Now there are f{#blank#}6{#/blank#} pandas than before. Most of them live in Sichuan and Gansu Provinces. There are also some other rare animals in China. H{#blank#}7{#/blank#}， the n{#blank#}8{#/blank#} is becoming smaller and smaller than before. So people should try t{#blank#}9{#/blank#} best to help these animals. They are in d{#blank#}10{#/blank#} of disappearing from the world.

阅读理解

Trees are one of the oldest " citizens (公民) " of our Earth. They keep our air clean, reduce noise pollution, improve water quality and provide food and building materials.

Just like us, trees change a lot as they grow. At 1 to 3 years old, young trees learn how to protect themselves. For example, many trees grow thorns( 刺) to warn animals not to go near. Most young trees have large, deep green leaves so that they can catch enough sunlight and change it into their food and energy.

When trees are 4 years old, they begin to grow very rapidly and become strong enough to face challenges later in life. At the age of 15, trees become young adults. They grow more slowly and begin to produce flowers and fruit.

It is not until the tree is 20 to 25 years old that it becomes a real adult. The tree reaches its largest size. The adult tree gives us shade, oxygen and natural beauty; it is also a great place for a tree house, or a place for us to read a book, listen to music and so on. If we give the adult tree proper care, it will go on to live healthily for many years.

Gradually, trees begin to grow older and older and even die. At this time, they still have their important place in nature. When a tree becomes hollow (空心的) or part of it becomes dead, it provides a home to small animals and is a source of food for many other animals.

In many ways, the life of a tree is similar to our own life experience. When we are looking at the life of a tree, we learn about that each period of life brings its own form of joy and challenge.

Enjoy every minute of the life of the trees and take care of the trees!

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

Imagine one day, the water taps (水龙头) in your house stop running. You have to buy water from shops. And still there isn't enough for everyone. Your mother has to save the family's shower water to do other things. Would you be able to stand that kind of life?

Probably not. But that's what kids in Yemen are experiencing. Experts said Yemen is going to be the first country in the world to run out of water. According to a report, the capital, Sana, will run out of drinking water as early as 2025.

Because of the shortage, the government often cuts the water supply(供应). Hannan, an 18-year-old from Lahej, told Times, "In a good week we'll have a water supply all week. But then the following week there will be water only for a day or two."

Hannan said only rich people have enough water to use. They can buy water from the shops or from the water trucks. Private companies own the trucks. They travel around the city every day to sell water—at very high prices. "A lot of people can't afford it," she said.

The average(平均) person in Yemen uses 100 to 200 cubic(立方) meters of water per year. That is far below the international water poverty(贫困) line of 1,000 cubic meters.

The government is thinking of making use of seawater. But it will cost a lot and it may not happen soon enough to help the people of Yemen.

阅读理解

Many people have the wrong ideas about pigs. Pigs are actually(买际上) very clean animals. On farms, they live in dirty places, so they become very dirty. But in the wild, pigs keep themselves very clean.

They are also very smart. They may he smarter than clogs. So pigs can learn things from people.

Pigs are very friendly animals. Some people raise (饲养) them as pets. Of course, people raise the smart kind, not the big kind. Small pigs are very cute. And they don't break things in the house. Big pigs usually live outside on the farms, not in people's houses.

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