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题型:阅读理解-单选 难度:0.65 引用次数:129 题号:12900098

Teenagers are known for being creative and full of new ideas. Let’s have a look at these teenage inventions that might change the world.

Banana leaves usually go bad in two or three days. Tenth Hadith, a teenager from India, used UV to make the leaves stay fresh for a year.

Tenth thinks that one day the leaves will be used for making plates, cups and other things.

David Cohen, an American teenager, built an earthworm robot. It is able to go into even the smallest places, where humans or dogs can’t go. It will be used for finding people in a fire or an earthquake.

Remya Jose, a 14-year-old from India, found it tiring and boring to hand wash clothes in the nearby river. She reused some bicycle parts and created a washing machine that saves time, energy and keeps people fit at the same time.

Kenneth Shinozuku, a 15-year-old from New York, noticed that his grandfather who got Alzheimer’s disease would leave home and often get lost. So he invented the wearable sensors(感应器)to help people find their family members like his grandfather.


1. How long did Tenth keep the banana leaves fresh?
A.A day.B.A week.C.A month.D.A year.
2. What can the earthworm robot made by David Cohen do?
A.Prevent a fire.B.Help people wash clothes.
C.Go into the smallest places.D.Take care of the old people.
3. What may happen to a person who has the Alzheimer’s disease?
A.To get tired easily.B.To get lost often.
C.To dislike staying home.D.To dislike doing housework.
4. Which of the following is TRUE?
A.Plates and cups are made of fresh banana leaves.
B.Remya’s washing machine can help people keep fit.
C.David Cohen is a middle school student from India.
D.Kenneth’s wearable sensors will help old people find the way home.
5. What is the text mainly about?
A.Teenage inventions.B.Useful machines.C.Strange pictures.D.Different fruits.

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【推荐1】①That future is almost here. “I think it’s going to happen. Definitely in ten years…and hopefully much, much faster,” said Sebastian Thrun in 2021. At that time, his young company Kitty Hawk Corporation was working on developing a flying car known as eVTOL, or Electronic Vertical Take-Off and Landing vehicle(车辆).

②Flying to work or school sounds unbelievable. Not only is it fun to fly, but “there would never be traffic again, because the sky is very, very large,” says Thrun. He also thinks eVTOLs could be greener than common cars. “We go much faster, we go in a straight line, we fly on less energy,” he says.

③So far, though, flying cars haven’t taken off as a product. Will their day come? There are still many problems to solve. Their high price means most people won’t be able to afford one. So, some companies are developing them as air taxis that people could pay to ride. The main problem with flying cars is safety. Accidents in the air are dangerous to both the passengers and anyone on the ground beneath. To make eVTOLs safer, many developers are aiming to make them self-flying—no human pilot required.

④Another problem is space. Most aircraft need long runways to take off and land. Lifting straight up and down like a helicopter solves this problem. But eVTOLs still need special spaces, called vertiports, for take-off and landing. Finding places to put these could be tricky, especially in crowded cities. But maybe some could go on top of buildings.

⑤What do you think? Would you enjoy riding to school or to visit a friend in a self-flying taxi? Are flying cars a good idea, or should we find other ways to get around in the near future?

1. What is Sebastian Thrun’s opinion about the future of flying cars?
A.He thinks it will never happen.
B.He thinks it will happen in the next century.
C.He is not sure about the future of flying cars.
D.He believes it will happen in ten years and faster.
2. Why are some companies developing flying cars as air taxis?
A.To solve safety problems.B.To make them cheaper.
C.To provide rides for people.D.To compete with common cars.
3. What is the possible structure of the passage?
A.B.C.D.
4. What is probably the best title of the passage?
A.Is a Flying Car Your Dream Car?B.Will Future Flying Cars Need Drivers?
C.The Exciting World of Electric TaxisD.The History of Air Travel Technologies
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【推荐2】阅读下面短文,从短文后的选项中选出能填入文章空白处的最佳选项。

Dr. Jack Tod is very interested in cleaning water.     1    . So it’s natural that he is to develop a small and affordable system (系统)to clean waste water. His “Living Machine” can clean waste water in your home or in your business.

    2    . The waste water goes into a big plastic tank where bacteria (细菌) start to break down the waste. A few days later after it is dealt with, the water is brought into a greenhouse filled with plants and fish.     3    , the plants and animals remove (去掉) more chemicals from the water, making it cleaner. Then the water can be reused for washing or bathing.     4    , but the water is clean enough for watering the flower, washing the dog, or even for bathing or swimming.

The advantage of this technology is that it is affordable and good for the environment.     5    , it can help to use less fresh water, and it can help save water.

A.If enough homes and businesses use “Living Machines”
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【推荐3】Many people know that robots do hard and dangerous things. But did you know that there are many other kinds of robots and they do much more than that? Let’s meet some of these robots and find out what they do.

Social robots are very popular. Wakamaru, a Japanese robot, is helpful to elderly and disabled people. It can help people remember to take their medicine, and it can also call for help in an emergency (紧急情况). Robovie Ⅱ is a social robot that helps people go shopping.

Robots that can do housework are very popular today. They will help you clean your house. With their help, you’ll have more time to enjoy life.

Medical robots are very important in modern medicine. With the da Vinci Surgical System, the doctor sits several feet away from the patient and controls the robot’s every move. The HeartLander can do heart operation. Thanks to robotics makers, disabled people can have robotic hands that work like human hands.

Service robots help in emergencies. The VGTV is a small robot that is used to help search for people who are trapped (受困的) under fallen buildings. It can change its shape to go into small spaces.

Explorer robots are very useful too. The Groundwater Voyager makes maps of underwater environments. Some robots can work in space easily. They have successfully explored planets like Mars, where they were controlled by humans on the earth through remote control (遥控).

Amazing, right? What will future robots do?

1. What do we know about Wakamaru?
A.It is made in China.B.It is not useful for the old.
C.It can help people go shopping.D.It can help people remember to take their medicine.
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