1 . Many leading AI researchers think that in a matter of decades, artificial intelligence will be able to do not merely some of our jobs, but all of our jobs, forever transforming life on the earth.

The reason why many people reject this as science fiction is that we’ve traditionally thought of intelligence as something mysterious that can only exist in biological organisms,especially humans. But such an idea is unscientific.

From my point of view as a physicist and AI researcher, intelligence is simply a certain kind of information-processing performed by elementary particles (基本粒子) moving around,and there is no law of physics that says one can’t build machines more intelligent than us in all ways. This suggests that we’ve only seen the tip of the intelligence iceberg and that there is an amazing potential to unlock the full intelligence that is potential in nature and use it to help humanity.

If we get it right, the upside is huge. Since everything we love about civilization is the product of intelligence, amplifying our own intelligence with AI has the potential to solve tomorrow’s toughest problems. For example, why risk our loved ones dying in traffic accidents that self-driving cars could prevent or dying of cancers that AI might help us find cures for? Why not increase productivity through automation and use AI to accelerate our research and development of affordable sustainable (可持续的) energy?

I’m optimistic that we can develop rapidly with advanced AI as long as we win the race between the growing power of our technology and the knowledge with which we manage it. But this requires giving up our outdated concept of learning from mistakes. That helped us win the race with less powerful technology. We messed up with fire and then invented fire extinguishers (灭火器), and we messed up with cars and then invented seat belts. However, it’s an awful idea for more powerful technologies, such as nuclear weapons or super intelligent AI-where even a single mistake is unacceptable and we need to get things right the first time.

1. How do many people feel about leading AI researchers’ predictions?

A．Worried.	B．Curious.
C．Doubtful.	D．Disappointed.

2. What does the author think of intelligence?

A．We know little about it.	B．It belongs to human beings.
C．It is too difficult to understand.	D．We have a good command of it.

3. What does the underlined word “upside” in Paragraph 4 probably mean?

A．Cost.	B．Potential.
C．Quantity.	D．Advantage.

4. What’s important for us in the race between people and technology?

A．Learning from failure.	B．Increasing our intelligence.
C．Avoiding making mistakes.	D．Making accurate predictions.

2 . 2022北京张家口冬奥会将如期在北京张家口举行。为了确保冬奥会圆满成功，组委会发起了志愿者招募活动。假如你是学生李华，希望能成为其中的一员。请按要求用英文给组委会写一封申请信。主要内容如下：
1. 个人情况；
2. 自身优势。
注意：
1. 词数100左右；
2. 文章开头和结尾已给出，不计入总词数;
3. 可以适当增加细节，以使行文连贯；
参考词汇：2022北京张家口冬奥会 2022 Beijing- Zhangjiakou Winter Olympic Games
Dear Sir/Madam,
________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Yours,

Li Hua

3 . If you live in Shanghai, you might have to take a "lesson" in sorting garbage, as the city recently introduced new garbage-sorting regulations. It's now required that people should sort garbage into four categories, namely recyclable, harmful, dry and wet waste. However, if people fail to sort their garbage properly, they can be fined up to 200 yuan. More cities are introducing similar regulations, following the practice in Shanghai. By the end of 2020, garbage-sorting systems will have been built in 46 major Chinese cities, including Beijing and Shenzhen, reported People's Daily.

According to a study by the Policy Research Center for Environment and Economy, under the Ministry of Ecology and Environment, over 90 percent of the public believe that garbage sorting is important for the protection of the environment. However, garbage sorting is still a big problem in China. Only 30 percent of participants said they think they are adequately sorting their trash, the study noted.

According to Xinhua News Agency, it's partly because many people lack the willingness to sort their own waste, In the past. Some previous garbage regulations didn't give clear fines for people who failed to sort garbage. "It's a must to have a legal guarantee to promote garbage sorting." Liu Jianguo, a professor from Tsinghua University, told China Daily. He also added "the importance of the new regulations in Shanghai is to change the past voluntary action into compulsory action for everyone.

Aside from China, many other foreign countries have also introduced garbage-sorting regulations. In Japan, waste sorting has become a basic survival skill, reported Xinhua. There is a fixed time for disposal of each kind of garbage and littering can result in high fines and even jail time. In Germany too, people are asked to sort waste into specific categories, reported HuffPost. For example, in Berlin, people have yellow bins for plastic and metals and blue bins for paper and cardboard.

1. What can we learn from paragraph 1?

A．All the cities use the same regulations as Shanghai.

B．Shanghai works as a pioneer in garbage sorting.

C．Poisonous waste belongs to four categories in sorting.

D．People will be fined not less than 200 yuan.

2. Which statement is true according to the passage?

A．Not all the public attach importance to garbage sorting.

B．Garbage-sorting system have been built in 46 major cities.

C．People may be put in prison because of littering in Germany.

D．People aren't fined clearly if they fail to sort garbage now.

3. What can be inferred from Liu Jianguo's words?

A．The sorting action should be changed from compulsory to voluntary.

B．He thinks highly of the legal regulations in garbage sorting.

C．There is a growing concern over garbage sorting worldwide.

D．Legal guarantee is a must to promote garbage sorting.

4. Which of the following can be the best title for the text?

A．Regulations Are of Great Importance

B．Shanghai Puts Garbage-sorting Into Practice

C．Cities Get Serious About Waste

D．Garbage Is Hard to Recycle Appropriately

5 . Your Internet experience is ruined when the net speed is too slow – it takes so long to open a web page and a video you’re watching stops every few minutes. That can be very annoying.

But it could be a thing of the past. On June 3, the Ministry of Industry and Information Technology announced that China would issue（颁发）licenses of 5G. It means the age of 5G is coming.

The “G” in “5G” refers to the generations of mobile network technologies. 1G let us talk to each other, 2G let us send messages, 3G gave us mobile data and the internet, and 4G made all of these things faster.

Now 5G means much faster data download and upload speeds, and more stable(稳定的) connections. It also means that you will be able to download an entire HD movie in seconds and only experience a short delay between sending and receiving data. For example, when you have a video chat with your friend, there is generally a 100 to 200 milliseconds(毫秒) delay with 4G, but 5G will reduce the delay to 1 millisecond or less, which is almost real time.

What changes will 5G bring us?

According to the Straits Times, 5G will be able to improve many advanced technologies, such as driverless cars, and entertainment. With a 5G network, the short delay in information exchange will allow driverless cars to run more safely, as they will be able to communicate in real time and avoid potential(潜在的) dangers. Besides, VR（虚拟现实） games will become more popular with 5G. The short delay of 5G will make the games feel even more real.

Does 5G have any disadvantages?

According to the BBC, though 5G will make our lives more convenient, it will not be perfect. For one thing, 5G will not “travel” far. On 4G networks, you can be 10 kilometers away from the nearest transmission base（传输基地）and hardly lose signal. But 5G will only cover about 300 meters, meaning that we will need more transmitters（发射器） so that we can get signals. And in order to use 5G, we will have to buy new products specifically designed for 5G that are expensive at present.

1. According to the text, we know that ________.

A．You can surf the Internet with 2G service.

B．You can have a video chat with your friend with 4G service.

C．You can use any mobile phone to experience 5G services.

D．You can download an entire HD movie in seconds using 3G services.

2. In the passage the function of the first paragraph is to ________.

A．introduce the topic of the text.

B．tell readers some feelings.

C．explain what 5G is.

D．make a comment of Internet experience.

3. Why can driverless cars be more safely with a 5G network?             

A．Because the short delay of 5G will make driverless cars feel even more comfortable.

B．Because driverless cars will be able to communicate in real time and avoid potential dangers.

C．Because the drivers will be more careful.

D．Because the drivers will hardly lose signal with5G network.

4. Which of the following best explains “travel” underlined in the last paragraph?                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         

A．旅行	B．盛行
C．传输	D．移动

6 . 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。

According to Xinhua News Agency, the Palace Museum and Huawei signed a strategic cooperation agreement on March 15. The two sides will set an example     1     5G application.

The Palace Museum received more than 17 million visitors in 2018,     2    (make) it the most visited museum in the world. In the past 20 years, an office information network covering the whole museum     3     (build) gradually. The museum has developed an App that provides an in-depth     4    (explain) of cultural relic information and cultural services. Also, the museum has research on the application of VR, AR, Al and other     5    (technique) in museums.

    6     signing of the agreement marks a new chapter in the strategic cooperation between the Palace Museum and Huawei Technologies Co. So, Huawei will make efforts     7    (accelerate) the intelligent construction of the Palace Museum.

“The 600-year-old Palace Museum has never been so close to science and technology.” Shan Jixiang said     8     (proud), director of the Palace Museum.

Shan shared many ideas about the 5G Palace Museum. With the help of advanced technology,    9     is expected that in the future, audiences around the world will be able to experience and visit the Palace Museum, whether it is a field trip or a virtual tour. Also, the use of Al technology provides a     10    (broad) platform and stronger knowledge support for cultural relics among young people.

The Students’ Union

7 . 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。

Every day people throw away a lot of household garbage – paper, cans, kitchen waste, used batteries and glass     1    sorting it. There are many problems     2    (cause) by unsorted garbage. On one hand, it’s     3    great waste of resources. On the other hand, the disposal of unsorted garbage can cause serious environmental pollution,     4    does harm to people’s health. Now our government has realized the importance of garbage sorting. So far many activities     5    (hold) to teach people how to sort garbage     6    (proper).

People in cities, like Beijing and Shanghai, are required to sort garbage into four categories— kitchen waste,     7    (danger) waste, recyclable waste and other waste. Also, they can get certain points for sorting their garbage. When they accumulate enough points, they can go to the community     8    (exchange) them for some gifts of daily use. However, still a lot of people in China lack the     9    (aware) of garbage sorting. Changing people’s mindsets and habits will take a long time. But once one person     10    (develop) the habit of garbage sorting, more may be influenced to do the same.

8 . Slowly but surely, we're moving closer to the super-fast 5C world that tech companies have been promising us for years. But do we really know it all?    1    

◆It's not quite here yet.

Though we've seen a lot of positive progress, we still have a long way to go before 5G is anywhere near as available as 4G is right now. But most in the industry agree that 2020 is the earliest when 5G will ever begin to touch most consumers. And even then, early 5G networks could come with their fair share of growing pains.    2    

◆It's not going to be cheap.

    3    Some companies haven't commented on specific pricing yet, but, as most have pointed out, data costs have historically climbed as network speeds increase. There's little reason to think that trend won't continue. It's not all bad news, though. Experts are optimistic that data prices will come down in the long run once 5G starts to be widely available. But it's impossible to say how long that change could take.

◆    4    

It's obvious that 5G networks will bring fast data connections. However, part of its appeal is that it makes It's obvious that 5G networks will bring fast data connections. However, part of its appeal is that it makes mobile networks better, meaning that networks can support many more data connections than what was previously possible. Have you ever been to an event where your data connection slowed down or stopped working?    5     But 5G networks have a much higher ability to support up to a million devices per square kilometer.

A．It's really, really fast.

B．It's not just about speed.

C．Extra speed comes at a higher cost.

D．Here are three major disadvantages of 5G.

E．Let's clear out some misunderstandings about it.

F．That's because present networks can easily be overloaded.

G．Unbalanced coverage or negative effects on battery life may arise.

9 . 阅读下面材料，在空白处填入1个适当的单词或括号内单词的正确形式。

Beijing has made history in winning the     1     (compete) to host both the summer and winter Olympic games. Chinese President Xi Jinping has sent a letter     2     the International Olympic Committee or IOC President Thomas Bach for its trust and support in     3     (select) Beijing and Zhangjiakou as the hosts of the 2022 Olympic and Paralympic Winter Games.

In the letter, President Xi standing for the Chinese government and people     4     (say) “it is the desire of over 1.3 billion Chinese people     5     want to present an attractive, extraordinary and excellent Winter Olympics.” He also said “Chinese people will take     6     (they) full responsibilities, together with the people of all other countries and the IOC. And China will try its     7     (good) in the development of the Olympic winter sports and in the spread of the Olympic spirit.”

Xi added that China would create a new record for the same city to host both the Summer     8     Winter Olympic Games.     9     (sure), this is a very important moment in the history of Beijing, because its name will     10     (remember) forever as an Olympics city for the second time.

10 . 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。

Bike sharing is a new choice for short journeys in cities. It is good     1     the healthy development of big cities.     2     report by a company found that shared bikes started the nation’s love for bikes again. Now more and more Chinese people     3     (choose) bikes instead of cars to make short journeys in cities.

Since the start of shared bikes, people have made     4     (few) trips by car. The love for shared bikes is not only among young people,     5     were born in the 1980s and 1990s, but also among the old people who are over 60. The shared bikes like Mobike and ofo are useful to people. You can use them by     6     (simple) using your smart phone. People can ride these shared bikes to some places where the subways and the buses don’t go.

However, bad things happen. Some people damage the QR code(二维码) on the bike, or use their own lock, which causes trouble to other users. As for the situation, it’s difficult     7     (correct) these people’s behaviors in a short time. Therefore, bike-sharing companies need to do something. For example, people can     8     (ask) to register as a user with     9     (they) real names. It’s a good way to connect to one’s personal credit. People who damage the bikes should pay for their     10    (act).