- 二一组卷

题型：阅读选择题类：常考题难易度：困难

浙江外研版2018-2019学年初中英语八年级下册Module 3 单元测试卷(四)（含听力音频）

阅读理解

Is there intelligent（有智力的）life on other planets? For years, scientists said "no." or "we don't know." But today this is changing. Seth Shostak and Alexandra Barnett are astronomers（天文学家）. They believe intelligent life exists（存在）somewhere in the universe. They also think we will soon contact them.

Why do Shostak and Barnett think intelligent life exists on other planets? The first reason is time. Scientists believe the universe is about 12 billion years old. "This is long enough for other planets to have intelligent life, "say Shostak and Barnett. The second reason is size the universe is huge. "Tools like the Hubble Telescope（哈勃望远镜）have shown that there are at least 100 billion galaxies, "says Shostak. "And our galaxy, the Milky Way, has at least 100 billion stars. Some planets going around these stars might be similar to the earth. "

In the past, it was hard to look for signs of intelligent life in the universe. But now, powerful telescopes（高倍望远镜）allow scientists to discover smaller planets-the size of Mars or the earth-in other solar systems, these planets might have intelligent life.

Have beings from space already visited the earth? "Probably not, "says Shostak. "It's a long way away. However, intelligent beings may contact us in other way, such as radio signals（信号）. In fact, they may be trying to communicate with us now, but we don't have the right tools to receive their messages. However, this is changing. By 2025, we could make contact with other life forms in our universe and we might help each other. "

（1）、What is the main idea of Paragraph 2?

A、The age and size of the earth. B、Something about the Milky Way. C、The reasons why intelligent life might exist. D、The earth is the only planet with intelligent life.

（2）、Why was it hard to look for signs of intelligent life in the universe in the past?

A、There were not any smaller planets. B、There were not any powerful telescopes. C、The astronomers were not interested in them. D、The Milky Way didn't exist at that time.

（3）、Why haven't beings from space visited us yet according to Shostak?

A、Because they're afraid of us. B、Because it's long way away. C、Because they don't want to see us. D、Because they don't know how to use radio signals.

（4）、What does the underlined phrase "life forms" in the last paragraph mean?

A、Messages. B、Tools. C、Radio signals. D、Intelligent beings.

举一反三

   When people want to know about the weather, they usually go to their radios, TVs, newspapers, or to the Internet. However, you can also find many weather signs among wildlife, because of their highly developed senses. Drops in air pressure produce an effect on small animals in many ways. Mice and deer are good weather indicators. People who spend a lot of time outdoors have observed that, before a storm, field mice come out of their holes and run around. Deer leave high ground and come down from the mountains.
   Birds are especially good weather indicators because they also show the effect of a pressure drop in many ways. For example, some birds become irritable(暴躁) and quarrelsome and will fight over a piece of bread. Other birds chirp and sing just before a storm. It seems they know they won't get another chance for an hour or two. Birds also look for safe places before a storm. You will sometimes see birds settling in trees or gathering together on a wire close to a building. Pre-storm low pressure make the air so thin that birds have difficulty flying.
   It is unusual to see many birds flying overhead in the summertime, rather than during the periods in the spring or autumn. Watch for other weather signs if you see this. If they fly in the wrong direction, they may be flying ahead of a storm.
   By paying closer attention to some important signs in nature, we can become better prepared for any kind of weather.

    If you think texting(发短信) while walking is dangerous, just wait until everyone starts wearing Google's smart, Internet-connected glasses. These glasses can do anything you now need a smartphone or tablet computer(平板电脑) to do —and then some.
    In Google's video, a guy wearing the "Project Glass" is shown getting subway information, making an appointment with a friend for coffee and showing the directions in a bookstore, all with the help of the glass. It ends with him playing an instrument for a woman and showing her the sunset through a video chat.
    The "Project Glass" Google displayed have a sleek(光滑的) wrap-around look and appear nothing like 3-D glasses. In development for a few years, the project is the idea of Google X, the online search-leader's secret department that produced the self-driving car and could one day send elevators into space.
    Google posted the video and short blog post about “Project Glass” on April 4^th, asking people to offer feedback(反馈) through its Google Plus social network. By April 5^th, about 500 people did, voicing a mix of amazement and concern about the new technology. What if people used it in cars and could not concentrate on driving? What about the effect on(对……有影响) your sight of having a screen so close to your eye?
    Some asked for the glass, but Google isn't giving those out just yet. The company didn't say when normal people can expect to get their hands on a piece of Project Glass, but going by how quickly Google will come out with new products, it may not be long. Enderle said that it could be about six months to a year before wide tests are coming, and a year or more for the first version(版本) of the product.

Being safe in your everyday life needs knowledge. you remember the following information，your life will be much safer.
● Always notice the environment around you. You shouldn't walk alone outside late at night. Make sure where the public phones are. If anything dangerous happens，you can find them easily.
●Your bag should be carried towards the front of your body instead of putting it on your back。When a bus is full of people，it is easy enough for a thief to take away the things in the bag on your back.
●If you are followed by someone you don't know, cross the street and go to the other way, let the person understand that you know he or she is after you. Next，don't go home at once. You are safer in the street than you are alone in your home or in a lift.
●If you have to take a bus to a place far away, try to get to the stop a few minutes earlier before the bus leaves. On the bus，don't sit alone. Sit behind the driver or other people. Don't sleep.

根据材料内容，选择正确答案。

Come and meet the Indian(印度的) elephants and the new tigers from America. The bears are waiting to meet you, and the monkeys from China are waiting to throw things at you. The lovely dogs from Australia are waiting to laugh at you The giraffes from Zambia(赞比亚) are waiting to look down on you.

Tickets

Opening time

Adults: $2.00

Children: $1.00

Under 12: Free 9:00 a.m.-4:00 p.m. (Except(除了) Friday)

10:00 a.m.-3:00 p.m. (Friday)

Keep the zoo clean!

Do not touch, give food to or go near the animals.

根据短文内容，从题中所给的A、B、C、D四个选项中，选出正确选项。

What will the world be like if cars can drive themselves? Imagine seeing an empty car passing by on its way to pick up its owner or a car full of passengers who are reading, listening to music or even sleeping. The passengers in the car needn't worry about the road ahead.

Well, all of this could be the future of driving. There are several companies, including Google, Tesla, Mercedes-Bens, Audi, BMW, Volvo and Toyota, working on driverless cars. They are now in the testing stages (阶段). If the tests are successful, these self-driving cars could be available very soon. But how is it possible for a car to drive itself?

Modern cars are able to take the place of drivers during certain situations. For example, they can park themselves or slow down when they detect (发现) objects nearby. They can also control the speed if there are dangerous condi-tions, such as snowy roads. Scientists and engineers believe that, with the help of wireless signals (无线),cameras and GPS, creating a safe self-driving car might be possible in ten to twenty years.

Self-driving cars may help cut down the number of serious accidents caused by careless drivers or dangerous condi-tions. However, there are still some people who do not like the idea. American lawyer, White Drake, for example, doesn't believe these cars are safe. He thinks the possibility of the technology making a mistake will be too high.

阅读理解

Researchers have developed paper that can be printed with UV light (紫外线), free from the need for ink (油墨). People can clear the information away on the light-printable paper by heating it to 120℃and it can be reused more than 80 times.

The research was carried out in order to reduce the effects of paper production on deforestation (滥砍滥伐). The researchers, from Shandong University in China and the University of California, Riverside, said that the secret behind the technology is a color-changing chemical. A thin coating of the chemical can be used on usual paper and turn it into a reusable, light-printable one. Heating the paper for 10 minutes can help clear the information away more quickly.

Professor Yadong Yin, a chemistry professor at the University of California and a co-author of the study, said, "The greatest importance of our work is the development of a new technology to produce an ink-free rewritable paper that has the same feel and appearance as usual paper. Our work is believed to have great economic and environmental influences on the modem society." Paper production has a bad influence on the environment. It's the main cause of industrial pollution and paper thrown away by people makes up about 40% of landfills where waste is buried under the ground.

It is predicted that light-printable paper will be inexpensive in the future. The printing process is also more cost-effective than the usual one as no ink is needed. Most importantly, it can be reused many times, which greatly reduces the cost.

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