- 二一组卷

题型：阅读选择题类：常考题难易度：普通

重庆市巴南区2019-2020学年八年级上学期期末英语试题

阅读理解

Which is the tallest mountain on the earth? The answer must come fast—MT Everest, at a height of 29,000 feet.

But that is only on land. For, if you were to measure (测量) from the bottom (底部) of the ocean. The tallest mountain in the world will probably be Mauna Kea in Hawaii. It is more than 15,748 feet under the sea and another 13.779 feet above it.

As US scientist Cindy Lee Dover points out that the seafloor is the largest and least known place on the earth. We know more about Mars (火星) and Venus (金星) and the back side of the moon than we know about the seafloor.

Some people have travelled to the deep water of the ocean to try to find all kinds of unknown animals and plants living in the deep water. Even scientists know very little about them. Many of them perhaps do not even have names. Some of the names given by scientists to newly discovered (被发现) animals are really funny. Among them are the spaghetti worms (意大利面蠕虫), named as such it is found in a tangle (缠结), it is often difficult to make out where one ends and another begins! Just like spaghetti.

（1）、What is the height of the mountain Mauna Kea above the sea?

A、13, 779 feet. B、15,748 feet. C、29,000 feet. D、29, 527 feet.

（2）、The spaghetti worm ________.

A、doesn't have a name B、lives in the deep water of the ocean C、has no end or beginning D、is a kind of new animals on land

（3）、What's the meaning of the underlined word "seafloor"?

A、海洋生物 B、宇宙 C、海底 D、山脉

（4）、Which is TRUE according to this passage?

A、MT Everest is the tallest mountain on the earth. B、We still know very little about the seafloor. C、Scientists know a lot about the animals in deep water. D、Every sea animal has a very funny name.

举一反三

All living things on the earth need other living things to live. Nothing lives alone. Most animals must live in a group, and even a plant grows close together with others of the same kind. Sometimes one living thing kills another, one eats and the other is eaten. Each kind of life eats another kind of life in order to live, and together they form a food chain(食物链).Some food chains are simple, while others are not. But all food chains begin with the sun, and all food chains become broken up if one of the links disappears.
All life needs sunlight to live on. But only plants can use sunlight directly. Plants are“factories”.They make food from sunlight, water and things in the soil and air.
Plants feed all other living things. Animals can only use the sun's energy after it has been changed into food by plants. Some animals feed directly on plants, others eat smaller animals. Meat-eating animals are only eating plants indirectly.
What about human beings? We are members of many food chains. We eat wheat, rice, vegetables, fruits and so on. We also eat meat and drink milk. But men often break up the food chains. They kill wild animals. They also make rivers, lakes and seas dirty. When these rivers, lakes and seas are polluted, the fish in them cannot be eaten. If men eat the fish, they will get strange diseases.
Each form of life is linked to all others. Breaking the links puts all life in danger.

    What will the house of the future look like? Architects (建筑师) believe that there are all possibilities. The only thing for sure is that the house will be as green as possible.
    The tree house
    Many architects in the world would like to build a “tree house.” Like a leaf, the surface (表面) of the house collects sunlight during the day. The energy can be used to heat water, produce electricity, and even create fresh air for the home. The “root” of the house is deep under the ground.
    The lizard (蜥蜴) house
    Like a lizard, changing color with the weather is the most important design of a lizard house. When it's in the bright sun, the cover of the house will turn dark to protect it from strong heat. During dark days, it turns white and takes in as much light and heat as possible to produce energy.
    Meals at home
    It has gardens on the outside wall of the house. People can plant tomatoes, carrots and green tea on them. So every day in the morning, you just need to walk outside and collect your meals.
Learning from the past
    Looking to the future isn't the only way to be green. Sometimes, ancient techniques (古老的技术) can also help cut down energy use. For example, a chimney can be a useful air conditioner because it is easier for hot air to flow out at the chimney.

阅读理解
    You may have noticed that the world's population is not evenly distributed (分散式的) around our planet. There are some countries where people seem to be living nearly on top of each other because conditions are overcrowded. Then there are others where it seems that hardly anybody lives. What influences this unequal distribution of people? There are specific advantages and disadvantages of living in a certain area.
    The two main factors that influence people's choice of location are climate and resources. Climate is the usual weather conditions in a region. Areas that have bad weather are generally less deal as places to live in. The north and south poles at the top and bottom of the world may be beautiful in their rugged, natural way, but the disadvantage of the bitterly cold and windy conditions usually keeps people away. When it comes to climate, warm conditions and a normal amount of rainfall are advantage that attract people.
    Natural resources are things that we get from nature and that help us survive. Each region offers different resources, and therefore attracts different groups of people. People who enjoy the beach can make their living by catching and selling the ocean's many fish and other sea creatures. Those who prefer farming can take advantage of rich soil (土壤) in valleys near rivers. Some people are willing to accept the disadvantages of the terrible conditions of deserts or mountains in order to take advantage of the resources like oil or woods.

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。

The best time to collect green leaves is early in the leafing season but not so early．The months of June and July provide the best leaf samples（样品），but you can find great leaf samples throughout the summer．To make a fall color collection，you have to collect the leaves in autumn．

I have seen many beautiful fall color collections．

When you choose leaves for your samples，try to choose leaves of about the same size and shape on the tree．Make sure you collect the entire（完整的） leaves．

Remember，some leaves have only one blade（叶片） or leaflet（小叶）．Some leaves have a few or many leaflets．You must know these two kinds of leaves．Good leaf collections contain the entire leaves．

You should dry the collected leaves carefully before putting them in a leaf press（压）．When you collect leaves in the field，you can put them between the pages of book to protect them．And then，press them as soon as possible before you take them from this book．Finally，you should write down each leaf's name and put them in a leaf press．

阅读下列短文，从下面每小题的 A、B、C、D 四个选项中选出最佳选项。

Artificial intelligence（人工智能）, or AI in short, is the science of giving computers and machines ability to think and work like humans. AI scientists and engineers have made a lot of cool technologies.

AI is rapidly catching up with the human ability to read faces. As a result, facial recognition（识别）is used a lot in the world. Chinese police use this technology to identify criminals（罪犯）.Once they caught a criminal when he attended a concert. It also checks the ID of ride-hailing（网约车）drivers and lets people pay for things with a smile.

AI is also used in self-driving cars, which are believed to be the future of driving. Most drivers may wave or nod at passers-by to let them cross the street, but self-driving cars don't have this ability. Carmakers are testing a light signal system to help them "speak" to humans. The system can show what self-driving cars will do. For example, if a driverless car is yielding（让路）, it will flash two white lights side to side. A rapidly flashing light tells passers-by that the car is about to speed up.

Service Robots also show you know powerful AI is. Imagine this—you come back home from school and your robot housekeeper is waiting for you at the door. After dinner, he teaches you to play the piano, just like a real music teacher. Such thoughts will soon happen in the real world. In the future, more and more service robots will become good home helpers.

AI is so powerful that it can help human beings and even replace us in many jobs.

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!

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