【推荐2】阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

The future of driverless cars is fast becoming     1     reality. All the major car companies have plans to produce them-BMW, for example, have announced that they are launching a self-driving model in 2021.

But drivers of the first self-driving cars won’t be able to relax and watch a video.     2     (fortune), these cars can still get     3     (confuse) about what they’re “seeing”, and a human driver will need to take control sometimes. This is clearly necessary-the test driver of an early Tesla car on Autopilot     4     (die) in a crash while watching a Harry Potter DVD.

Accidents such as these may cause people to reject the idea of the driverless cars altogether.     5    , it’s predicted that driverless cars will reduce accidents     6     90%, and so millions of deaths could be avoided in future.

Most experts agree that we are not going to have true driverless cars on our roads     7     after 2030. Even then, it won’t be possible to drive anywhere you want. Driverless cars need digital maps with extreme     8     (accurate), and it’s not easy to produce these for all areas, particularly in the countryside.

    9     problem is that self-driving cars can be too careful. They won’t take enough risks and might wait too long for clear     10     (open) in the traffic, which could cause even bigger traffic jams!

【推荐3】阅读下面材料，在空白处填入适当的内容（1 个单词）或括号内单词的正确形式。
Booking clerk: Hello, can I help you ?
Customer : Yes, you know, I’d like to fly to Berlin, Germany,    1    the 13th of this month.
Booking clerk : Well, a moment please. I’ll check the    2    (flight). And What time will you come    3    ?
Customer: Let me see. I will attend a book fair    4    (hold) in Berlin, and the next two days a conference about education. Well, I haven’t decided when I’m going to return. Oh, I hope I will have the     5    (cheap) flight. By the way, how much does it cost to go there ?
Booking clerk: Oh, it’s only $870. This is the cheapest.
Customer : It’s fine. Would you like to tell me    6    the flight leaves and arrives?
Booking clerk: No problem. That’s Flight BA975. It    7    (leave) Los Angeles at 11:00 in the morning, and arrives in Boston at 2:35 in the afternoon. Then, you’ll have to change     8    Flight 301 at 4:10, and arrive in Berlin at 7:14 a.m. the next day.
Customer: I think I’ll take    9    . One more thing, I prefer to have a seat in the front and by the window, because I suffer from    10    (airsick) sometimes.

【推荐1】阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

Chinese tech company Xiaomi released its first self-developed NEV (new energy vehicle) model SU7. Three versions of the model－SU7, SU7 Pro and SU7 Max－will enter the market,     1     the prices ranging from 215,900 yuan to 299,900 yuan.

According to Lei Jun, founder and CEO of Xiaomi, the Xiaomi SU7     2     (undergo) comprehensive testing in 300 cities over the past three years,     3     (cover) a total road distance of 5.4 million kilometers. The tech company has achieved technological     4    (breakthrough) in key fields such as modeling design, batteries and intelligent driving. Xiaomi plans to invest 24 billion yuan in research and development this year, demonstrating a serious     5     (commit) to manufacturing cars.

Xiaomi entered the NEV sector in 2021 and built     6     automobile plant with a land area of more than 700,000 square meters. Data shows that the production volume and the sales volume of NEVs in China reached 1.25 million units and 1.21 million units in the first two months of this year, up 28.2 percent and 29.4 percent year-on-year,     7     (respective).

    8     (give) that several Chinese companies that had entered the sector faced severe financial difficulties, experts said     9     or not Xiaomi can really afford the capital and time needed for the smart car business remains     10     (see).

【推荐3】阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。

Researchers have long expected to use tiny flying robots to do important tasks. However, fitting the heavy electronics required to power and control the wings into the tiny robots has been     1     (challenge). Now, there is hope, thanks to RoboBee X-Wing the world's lightest aerial vehicle (飞行器) that can fly without relying     2    a heavy power source.

    3    (show) by Harvard researchers, the insect-inspired robot is controlled by muscle-like plates. Six small solar cells provide the power. To test its flying capabilities,     4     team put the RoboBee X-Wing's solar cells in a     5    (combine) of halogen (卤素) and LED lighting. The tiny robot's wings began to flap, and it rose. The flight lasted for about half a second.    6     it was not completely successful, its unassisted flight     7     (consider) as a huge milestone for the future of tiny flying robots.

Of course, we draw lessons from the test: The robot has no navigation capabilities and, more     8    (important), it requires light three times brighter    9    the sun to work. Additionally, it is not equipped to stand even a slight breeze, let alone the strong wind it is likely to meet as it goes about performing important tasks.

The Harvard researchers are not the only scientists trying to create flying robots. Other researchers also hope to experiment with other power sources and to add more advanced "brains" and sensor systems that will enable future flying robots    10     (accomplish) tasks independently.