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题型:阅读理解-阅读单选 难度:0.65 引用次数:48 题号:10171717

I passed my driving test at the fourth attempt. You might think that means I’m not as safe as someone who passed for the first time. But would you feel safer with no driver at all? Maybe not, and it’s for this reason that automotive firms have included driver-assist functions in their prototype (原型) driverless cars. This allows the human driver to take over if there is a problem.

Google is one manufacturer that has prototype driverless cars. These have been equipped with steering wheels and conventional controls to allow normal driving. But this is just a stage — the vision is to have fully automated cars very soon. The director of Google’s self-drive project, Chris Urmson, hopes his 11-year-old son will never have to take a driving test. To achieve that, the cars need to be on the roads in five years. He says driverless cars will greatly reduce accidents and traffic jams.

According to Chris, “about 1.2 million people are killed on the roads around the world each year. That number is equivalent to a jet falling out of the sky every day.” He thinks gradual changes to existing car designs are not enough to deal with the problem. “If we are really going to make changes to our cities and get rid of parking lots, we need self-drive cars,” he says.

Google’s prototypes have covered over a million kilometers on the road. They have also had to deal with unexpected situations, such as a child driving a toy car in the road, and a woman in an electric wheelchair chasing a duck. In each case, they reacted safely.

Some are not convinced. Seven Beiker of Stanford University thinks driverless cars will still need human input in extreme circumstances. He also worries that people may forget how to operate their vehicles if they do not do it regularly. “I guess I shouldn’t throw away my driver’s license just yet,” he says.

1. What can be known about driverless cars?
A.They are fitted with newly-developed steering wheels.
B.They include functions managed by human drivers.
C.They need traditional controls to avoid traffic jams.
D.They will be purchased on the market in five years.
2. What can we learn from what Chris said?
A.Chris believes that there is a possibility of a jet crashing per day.
B.About 1.2 million people are killed around the world each year.
C.Changing current car designs alone cannot prevent all traffic deaths.
D.Driverless cars cannot deal with extreme circumstances without human help.
3. What’s the attitude of Seven Beiker towards driverless cars?
A.Approving.B.Cautious.
C.Neutral.D.Hopeful.
4. What does the passage mainly talk about?
A.Why we need driverless cars in the near future.
B.How to control a driverless car without a driver’s license.
C.Differences between driverless cars and conventional ones.
D.A brief introduction of driverless cars and some opinions on them.

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阅读理解-阅读单选(约330词) | 适中 (0.65)

【推荐1】It used to be mostly the military that used small, unpiloted airplane, called “drones”. The little planes were very costly. But the fast rate of development of computer technology, image sensing devices, satellite navigation and smartphones has led to lower-priced drones. Researchers and developers have learned how to build smaller and less-costly drones sought by individuals, companies and governments.

Romain Faroux is a French businessman who starts companies. His father was a farmer. He believed drones could help farmers. He helped create a company that developed a small drone that could be controlled by people on the ground with smartphones or tablets, depending on the application of the technology of GPS. They called it “Agridrone”. It uses a special “optical sensor (光学传感器)” to examine crops. He says the technology used is similar to that used by smartphones—except it has wings.

A computer program directs the drone to fly over the crops. The sensor on the drone records four different-colored “bands” of sunlight that are reflected off the crops.

Jean-Baptiste Bruggeman, who is a farmer, says the drone flies over his crops at different times of the season, which provides a lot of information about his crops.

He says the drone pictures show him the exact amount of fertilizer (肥料) the crops need. He says it also shows exactly where the fertilizer is needed. Farmers use information gathered by the Agridrone to place fertilizer only in areas where it was needed. He says some areas of a field may need less than others. As a result, there is reduced nitrogen from the fertilizer after the harvest, which reduces pollution. Before they used the drones, farmers would put the same amount of fertilizer everywhere. He notes drones also save time because farmers can examine up to 30, 000 square metres.

1. What used to be people’s concern of using drones?
A.Their security.B.Their price.C.Their size.D.Their function.
2. What is special for an “Agridrone”?
A.It can rely on the technology of GPS.
B.It can be controlled by smartphones.
C.It can direct its flight with an optical sensor.
D.It can examine crops and provide information.
3. According to Mr. Bruggeman, by using drones he enjoys all the benefits EXCEPT _______.
A.saving moneyB.saving time
C.helping natureD.increasing production
4. What is the passage mainly about?
A.A businessman built a drone for farmers.
B.Many people have begun to use drones.
C.Farmers are using drones to monitor their crops.
D.The development of technologies leads to new drones.
2022-07-15更新 | 47次组卷
阅读理解-阅读单选(约390词) | 适中 (0.65)
文章大意:这是一篇说明文。主要介绍了去健身房锻炼的枯燥和劳累,提出了虚拟现实VR游戏作为一种新颖的锻炼方式,可以边玩边健身。通过站立操作和身体活动,一些VR游戏能让玩家在不知觉中提升体能。一家公司看到了VR的健身潜力,正在开发结合VR头盔的健身器材。虽然目前设备成本高且存在安全隐患,但对于那些难以保持锻炼热情的人来说,VR健身提供了一个新的选择。

【推荐2】Going to the gym can take time and effort, it often hurts, and it can be extremely tiresome. Most weight-related exercises are a combination of sets and reps (组和次). In order to see any significant change from any exercise, it will probably need to be repeated six to eight times, fora minimum of three sets, for about three months. For some, there’s nothing more boring than endless miles spent running on a treadmill (跑步机).

But what if there were a way to relieve the tedium of exercise while still getting a good workout? Luckily for us, there’s virtual reality.

Many VR games are played while standing. In order to play properly, the player is forced to move around swinging their arms or using their legs. After an hour of this on a regular enough basis, it’s not surprising that many people unexpectedly find themselves a little fitter. There are already a number of virtual reality games which, intentionally or not, result in their player ‘getting a good sweat on’ if played for enough time. For example, there’s a first person shooter which forces the player to sidestep, duck and other sport actions. That’s cardio (有氧运动). Or there’s a music game which forces players to shadowbox in order to hit the notes—that’s an upper-body workout.

The potential for VR to help people get fit has been noticed by one company. They want to take the whole experience into the gym. They are making a resistance machine, designed to be used in combination with a VR headset. Players challenge a virtual opponent in a series of games, which results in a 30-minute full-body workout. However, the cost of the equipment is expensive and there are safety concerns to be worked out. So don’t hang up your gym shorts just yet.

Although it’s early days, for those of us who struggle to keep passionate about exercise, anew solution could be coming. And a world where a person can exercise and have fun at the same time might be something that many people would want—virtual or not.

1. In paragraph l, the author mainly conveys that going to the gym__________.
A.cannot avoid being hurtB.is hard to hold on
C.makes sense in a short timeD.means three months of exercise
2. What does the underlined word “tedium” in paragraph 2 most probably mean?
A.Boredom.B.Tiredness.C.Expense.D.Inconvenience.
3. What can be concluded about the 30-minute VR full-body workout?
A.Several security problems have been solved.
B.The relevant equipment has complex designs.
C.It has turned out to be very effective and popular.
D.It may be unavailable due to some disadvantages.
4. What’s the author’s attitude towards virtual exercise in the future?
A.Indifferent.B.Positive.
C.Tolerant.D.Doubtful.
7日内更新 | 13次组卷
阅读理解-阅读单选(约280词) | 适中 (0.65)
名校

【推荐3】If you've got a reliable Internet connection, smart lights are a cheap way to make your home very cool. Here are four of them.

LIFX

The biggest feature: you don't need a separate hub to control your smart lights. They connect via Wi-Fi and you can stick the lights anywhere. The LEDS create up to 16 million colors and are programmable, so you can create custom lighting patterns through the smartphone app. You can also set up a lighting schedule and make changes with your voice through Amazon Alexa, Apple HomeKit, and Google Assistant. $70.

Sylvania

The Sylvania LED light strip(灯带) is Apple HomeKit-enabled, meaning you can change colors and settings with Apple's smart voice assistant Siri or through the app. The only feature Sylvania does not include -- one that LIFX does -- is the ability for the lights to automatically rotate(转换) through colors. With these lights, you can only adjust brightness and change colors. $39.

If you use an Android phone, make sure to get an Android version. It has the same functions but is also compatible


(兼容的) with Amazon Alexa or Google Assistant. $52.

Eve

The Eve LEDS can be extended with additional strips and reach up to 32.8 feet. The LEDS produce a full range of whites and colors and are compatible with Apple HomeKit -- therefore voice controlled with Siri. This setup requires no extra hub. The starter version is available for $80 and extension strips are available for $50.

Minger

Mingers Wi-Fi connected strips of LEDS are 16.4-feet-long and can be controlled via the Govee app on your smartphone or with Amazon Alexa. The company doesn't recommend connecting multiple strips. $29.

1. How is LIFX different from Sylvania?
A.It is voice controlled.B.It is intended for Android phone users.
C.The brightness of its lights can be adjusted.D.The colors of its lights can change automatically.
2. If someone has a budget of $30, which of the following can they buy?
A.LIFX.B.Sylvania.C.Eve.D.Minger.
3. What do the four lights have in common?
A.They are powered by the sun.
B.They an be extended with additional strips.
C.They work well with smart home assistants.
D.They are developed by smartphone companies.
2021-04-12更新 | 45次组卷
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