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。

Learning Chinese calligraphy     1     (list) as one of the must-do things when I came to China. Now, I’m in the course of learning this unique art,     2     value is considered very high in China, even across East Asia today. It is not only     3     ancient artistic form of human language, but it also reflects Chinese traditions.

As someone who paints, draws, and loves all     4     (create) things, at first, I assumed I would be rather good at Chinese calligraphy. I was     5     (total ) wrong. Using thick brush tips to produce awkward brush strokes (笔画)     6     (be) very difficult for a beginner. I have no idea about the different types of calligraphy and the meanings     7     ( hide) behind each one. Also, I have to hold the paintbrush     8     a very specific way; unlike a pen or pencil, the paintbrush is held upright in the hand. I need to be extra careful when changing the angle or     9     (direct) of the brush, especially if I press too hard on the paper.

After taking the lesson, I now understand the difficulty of calligraphy and that it will take efforts and commitment     10     (master) this art form. Yet, I am grateful to learn such a special Chinese tradition.

2 . With the new e ___________ (设备) set up in the gym. the students started their training at once. (根据中英文提示填空)

4 . 假设你是红星中学高一学生李华，你的英国朋友Tom在邮件中询问你的高中生活。请给他回邮件，内容包括：
1. 你遇到的挑战；
2. 你为此所做的努力；
3. 询问他的情况。
注意：1. 词数100左右；
2. 邮件的开头和结尾已给出，不计入总词数。
Dear Tom,
___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Yours,

Li Hua

5 . Some students get so nervous before a test.     1     Sian Beilock, a professor at the University of Chicago in Illinois, has studied these highly anxious test-takers. The students start worrying about the results. And when they worry, it actually uses up attention and memory resources (资源).

Professor Beilock and another researcher, Gerardo Ramirez, have developed a possible solution. Just before an exam, highly anxious test-takers spend ten minutes writing about their worries about the test.

    2     They gave them two short maths tests. After the first one, they asked the students to either sit quietly or write about their feelings about the upcoming second test.

Professor Beilock says those who sat quietly scored an average of 12% worse on the second test.     3     Next, the researchers used younger students in a biology class. They told them before final exams either to write about their feelings or to think about things unrelated (不相关的) to the test. Professor Beilock says highly anxious students who did the writing got an average grade of B+, compared to a B- for those who did not.

“What we showed is that for students who are highly test-anxious, who’d done our writing intervention (干预), all of a sudden there was no relationship between test anxiety and performance.     4    ”

But what if students do not have a chance to write about their fears immediately before an exam?     5    

A．They were performing just as well as their classmates who don’t normally get nervous in these tests.

B．Researchers asked students to direct their attention from the test.

C．The researchers tested the idea on a group of twenty anxious college students.

D．But the students who had written about their fears improved their performance by an average of 5%.

E．They do poorly even if they know the material.

F．It doesn’t matter where we write about our worries before an exam.

G．Professor Beilock says students can try it themselves at home r in the library.

6 . Teaming up with AI

First the robots came for our jobs. Now they’re coming for our hobbies. Google’s DeepMind AI has been busy the past few years, creating programs to take on human players across a variety of games. In 2016 its AlphaGo beat the best Go player in the world. Earlier this year, its AlphaStar defeated two middle — tier players at the popular online game StarCraft II. Now it’s learning to win at multiplayer games.

“Artificially intelligent agents are getting better and better at two-player games, but most real-world endeavors (努力) require teamwork,” DeepMind’s researchers wrote in a paper published in Science in June.

To be sure, computers have been proving their dominance over humans in one-on-one turn-based games such as chess ever since IBM’s Deep Blue beat Russian chess master Garry Kasparov in 1997.

However, successfully using teamwork to win in multiplayer games with complex environments was difficult to achieve.

For this purpose, DeepMind’s researchers designed AI agents that taught themselves how to play first-person game Quake III Arena. The team, led by Maz Jaderberg, worked on a modified version of Quake III Arena.

The game mode they chose was “Capture the Flag”. All the players must work together to steal the other team’s flag while safeguarding their own.

The AI agents “trained” with 12 hours of game data, then matched up against professional game testers. The AI won 75 percent of the time, even when its reaction time artificially slowed down to human levels and when their aiming ability was similarly reduced.

And in order to make improvements, the programmers used various kinds of “rewards” to help the AI players weigh their goals and actions to help them cooperate in the teamwork. They also used randomized maps for each new match.

“That meant the solutions that the agents find have to be general — they cannot just memorize a sequence of actions,” said co-author Wojciech Czarnecki.

The only time humans were able to beat the AI agents was when they teamed up together. A team of one human and one AI agent had a five percent greater win possibility than a team of just AI agents.

Ethan Gach said at the video game news website Kotaku, “It suggests that the AI program is able to play with non-AI teammates.” In the near future, AI may cooperate with human beings in some other fields, such as medicine and other branches of science.

1. What might be the most difficult task for AI agents in multiplayer games?

A．Understanding the rules.	B．Cooperating with other players
C．Memorizing complex actions.	D．Increasing reaction speed.

2. How did the researchers of Google’s DeepMind train AI agents?

A．They put them through different games.

B．They gave various “punishments” when AI agents lost the games.

C．They made AI agents team up with non-professional human players.

D．They limited the time for AI agents to complete difficult tasks.

3. What does Gach mean in the last paragraph?

A．AI players perform better than humans in a team game.

B．AI programs should be offered more game data.

C．AI players are able to do well with human players.

D．AI programs have been successfully put into use in medicine.

7 . In the dead of winter, we don’t typically think about spending time outdoors, but according to many physicians we should. The sun is our greatest source of a vitamin that is essential for good health — vitamin D.

This important nutrient (营养素) strengthens bones and teeth and is linked to the prevention of heart disease, cancer and many other life-threatening diseases.

The recommended daily requirement is 400-600 IU. In summer, people with dark brown eyes and darker skin convert sunlight from just 15 minutes outside without sunscreen into adequate amounts of vitamin D.

Even during winter, just a 10-minute walk midday can keep the body’s vitamin D at healthy levels. During brief winter walks, we receive the greatest benefits when we wear no sunscreen and expose as much skin to the sun as

possible.

Vitamin D can also be obtained from foods. Salmon is one of the best sources of the vitamin. Egg yolks, cheese, mushrooms and beef liver contain smaller quantities of it.

To attract consumers, food companies add vitamin D to some of their milk products. The practice of putting the vitamin into milk began in the 1930s. At that time, many children were suffering from rickets, an illness that is caused by a vitamin D deficiency (不足). It made the children’s bones soft and weak. Adding Vitamin D to milk helped to solve the problem, and it has been available ever since.

For people who still need more vitamin D, there is another option: take vitamin D supplements. These products are widely sold in stores. However, anyone considering taking supplements should consult a physician first.

1. What is the main purpose of this article?

A．To note risks associated with a nutrient.

B．To analyze a nutrient’s composition.

C．To introduce a valuable nutrient.

D．To explain how a nutrient was discovered

2. What does this article imply about people during the winter months?

A．They aren’t able to meet their deadlines.

B．They often don’t dress warmly enough.

C．They generally tend to remain indoors.

D．They leave lots of work for others to do.

3. According to this article, what should people avoid doing with their skin to get the most benefit?

A．Washing it with harsh cleaners.

B．Scratching it to relieve an itch.

C．Allowing it to become extremely dry.

D．Covering it with protective lotion.

4. How does the article define rickets?

A．As a revolutionary drug.	B．As a health problem.
C．As an economical treatment.	D．As a mental disorder.