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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。

“A heavy ion (离子) cancer treatment system developed by Chinese researchers will soon be put into 1. (operate) in northwest China’s Gansu Province,” researchers said.

The system will be used in a hospital in Lanzhou, capital of Gansu, 2. is mainly devoted to treating cancer patients with the technology of heavy-ion accelerators.

Cancer radiation treatments 3. (employ) heavy-ion accelerators can attack 4. target with high-energy electrons (电子) to kill cancer cells.

Compared to traditional therapy (治疗) such as radiation, heavy ion treatment 5. (consider) to have more balanced properties with 6. (little) radiation on healthy cells. The treatment period is shorter, 7. the therapy could more 8. (effect) control cancer cells, according to Wang Xiaohu, deputy director of the Gansu Provincial Cancer Hospital.

Researchers with the Institute of Modern Physics under the Chinese Academy of Sciences started basic research 9. the technology in 1993 and developed the accelerators in 2015.

A report published by the National Cancer Center in 2017 showed that China has nearly 25 percent of the world’s new cancer cases, with 10,000 cancer patients 10. (add) per day. Every year, there are two million cancer-induced deaths. Lung, breast and stomach cancers are the most common types.

    I looked out at the smiling faces in the school auditorium. The applause filled my ears. I had really done it!

Just a few months earlier I would never have ______ myself acting in a play in front of two hundred people. But when the time came, I got up on stage and ______ one of my greatest fears. I found a new person inside me, a much more ______, outgoing person who had been hidden all along, just waiting for the opportunity to come. If not for my teacher, Mrs. Sather, I might never have found that ______.

I was extremely ______. I had friends, but it just wasn’t in my personality to be very outgoing, even when I knew someone well. I was even ______ with strangers.

One day, Mrs. Sather ______ that our class was going to perform a play. “I need someone to play the lead part of Dorothy,” she said. “Anybody want to try?” A few ____ hands shot up—mine, of course, was not one of them.

After class Mrs. Sather came to join me. “Dallas, I was thinking you would be the person for Dorothy. But I was ______ you didn’t raise your hand.”

Was she ______? Me, the lead? I was ______ just thinking of standing on stage in front of a lot of people.

“Dallas, you’re great at ______ things, so you won’t worry about lines. And you have such a sweet personality. Perfect for Dorothy!” She said.

Mrs. Sather stared into my eyes as if seeing my inner self locked away inside. “I’d love you to give this a ______ for me. But if you really don’t want to, I won’t make you. It’s your ____.” Mrs. Sather wanted me in this role. She ______ me. I realized it was time to ____ my shy cloak (披风).

Fast-forward through five months of practicing, we were ready. ______, I was as nervous as I had ever been. I proved to myself that I could do it in practice, ______ could I prove it to everyone else when it really mattered?

“It doesn’t matter how you do tonight,” said Mrs. Sather, ______ reading my thoughts when she came backstage for a final check. “You have already shown yourself how wonderful you are.”

At the end of the play, when the audience stood and applauded, I knew they were not just cheering for my performance that night, but for the performances they knew would come in later years because of my newfound ______.

1.A.praised B.agreed C.pictured D.remembered

2.A.expressed B.faced C.discussed D.shared

3.A.energetic B.daring C.generous D.sincere

4.A.story B.method C.solution D.opportunity

5.A.shy B.slow C.curious D.patient

6.A.colder B.calmer C.quieter D.happier

7.A.realized B.repeated C.found D.announced

8.A.firm B.excited C.powerful D.friendly

9.A.surprised B.annoyed C.amused D.embarrassed

10.A.objective B.crazy C.reliable D.nervous

11.A.ashamed B.regretful C.doubtful D.terrified

12.A.analyzing B.observing C.memorizing D.predicting

13.A.plan B.try C.guess D.promise

14.A.choice B.destination C.suggestion D.interest

15.A.reminded B.challenged C.trusted D.shocked

16.A.throw off B.keep off C.knock off D.call off

17.A.Therefore B.Otherwise C.Instead D.Still

18.A.but B.so C.or D.and

19.A.in case B.ever since C.as if D.even though

20.A.popularity B.ambition C.advantage D.confidence

    To shoot a scene of people eating food, you need two different perspectives (角度). To record a bus journey to school, you need three quick cuts. To complete this short, morning rush-hour video blog – or “vlog” – you need four pieces of music. 1.

With more than 90 million vlogs available online, and 2,000 posted every hour on the YouTube video-sharing site, CBS News says they are mainstream with people born after 1995.

2. More young Chinese people have become inspired to grab a camera and recount the details of their day on Sina Weibo, Bilibili or WeChat Moments.

“The most important thing about vlogging is to tell a good story. Other visual effects are auxiliary (辅助的),” wrote US vlogger Casey Neista, who has almost 10 million subscribers on YouTube.

Chinese vlogger Wang Xiaoguang is an example of a good storyteller. In one of his popular vlog posts, Wang tells the story of traveling to Japan. While there, he took a ride in the wrong direction and got lost. Worse, he forgot to bring a phone charger. 3.

Another key aspect of vlogs is that the content is based on everyday life, according to Ouyang Nana, 18, a young Chinese musician. She documents her life at Berklee College of Music. Ordinary as vlogs are, as many as 15 million fans share her wows and woes (喜怒哀乐) on a daily basis.

4. Peng Yixuan, a news reporter with China Daily, recorded her first experience attending and reporting on the two sessions in March of this year. With a relaxed, chatty and personal approach, she presented the conferences, “bringing more warmth” to the grand political event, according to People’s Daily.

There are popular vlogs for beauty, gaming, fashion, food and travel. Vloggers are learning new ways to experience the thrill of them. 5. Then what are you waiting for? Grab a camera!

A.They come from all walks of life.

B.However, he didn’t take the number of his hotel.

C.Vlogging has taken China by storm over the past year.

D.Some other popular vloggers choose to show their careers.

E.Vlogs pave the way for future advertising and sales campaigns.

F.Luckily he was able to borrow money from a stranger and escape trouble.

G.Vloggers have these techniques in mind as they film their daily activities.

    Throughout history, music spread among people of different cultures. In today’s technological advanced society, however, people spread music online, sometimes without an artist’s permission. This can lead to many problems, and music companies are now cracking down on this practice. Sharing music online without permission is theft.

Sharing music online prevents recording companies from making money from their efforts. They say that sharing music online has resulted in a huge drop in profits and sales over the past 10 years. People who find music for free online are not paying for CDs or every MP3 downloaded. To truly understand the influence of music piracy (盗版行为) on creators, one must understand how many people are involved in the recording process. For the sale of each album, profits must be shared between musicians, sound engineers, music producers, managers, advertisers, and the company selling the product. Many people believe sharing music only affects the recording artist, but the reality is that sharing hurts business for all companies involved.

There are many people who don’t see the harm in sharing music online and even think they have the right to do it. One online blogger states that he originally paid for an entire CD and that he should be able to do with the material whatever he wants. While he may have legally paid for the music, he does not have the right to provide permission, which means people like the blogger are thieves.

Although we don’t spread today’s music the same way we did before, there’s no doubt that people around the world love to share music. However, internet piracy would prevent musicians from continuing producing albums for fear of theft. Therefore, if people want to continue listening to their favorite artists, they need to buy their music so that artists will make enough profit to continue their music careers.

1.The underlined phrase “cracking down on” in paragraph 1 is closest in meaning to ___________.

A.bringing up carefully B.speaking highly of

C.dealing seriously with D.destroying completely

2.What can we infer from the text?

A.Artists are taking action to protect their right.

B.Sharing music files online affects a lot of people.

C.Online music sharing increases sales of music CD.

D.A person who bought a CD has the right to share it online.

3.How is the text organized?

A.Topic—Argument—Explanation.

B.Opinion—Discussion—Description.

C.Main idea—Comparison—Supporting statements.

D.Introduction—Supporting statements—Conclusion.

4.What is the main idea of the text?

A.Music piracy is kind of theft. B.Sharing music is Acceptable.

C.Downloading music should be punished. D.Music piracy is good for music lovers.

    Mice and rats have long been used in medical research because of their biological similarities to humans. Now, scientists have trained rats to drive small vehicles created for them. One of the main findings of the experiment was that the driving activity seemed to help the rats relax.

Researchers at the University of Richmond in Virginia led the experiment. The team built tiny cars out of plastic and other materials. The vehicles had an opening at one end where electrical wires were attached. By touching one of three different wires, the rat could control the direction of the vehicle.

Researchers trained 17 rats over several months to drive around the experiment containers. The animals proved that they could be trained to drive forward as well as in other directions to get to the sweet treats placed inside the containers.

The researchers examined levels of two hormones (荷尔蒙) in the rats—one that causes stress and another that reduces it. All rats that took part in the training had higher levels of the hormone that reduces stress. The research suggests the increased relaxation levels could be linked to the enjoyment of successfully completing a new skill. The team also found that the rats that drove themselves showed higher levels of the stress-fighting hormone than those that simply rode in small cars controlled by humans.

Lambert said the most exciting result of the experiment for her was about the possible effect on humans. The research may open new areas of non-drug treatments for people suffering from mental health conditions.

“There’s no cure for schizophrenia or depression and we need to catch up,” she said. “And I think we need to look at different animal models and different types of tasks and really respect that behavior can change our neurochemistry (神经化学). ”

Speaking to the British-based magazine New Scientist, Lambert said her team is planning to continue experiments to learn more about how the rats learned to drive. The new research will also examine why some activities appear to reduce stress, and which areas of the brain are involved in the process.

1.What did the experiment find?

A.Rats are able to drive vehicles. B.Rats feel relaxed when driving.

C.Rats can be used in medical research. D.Rats are biologically similar to humans.

2.The finding of the hormone examination in the rats suggests that ___________.

A.one hormone causes stress and another reduces it B.acquiring a new skill brings about joy

C.levels of hormone are controlled by stress D.relaxation contributes to enjoyment

3.The research is significant because ___________.

A.it may lead to a way to treat human mental problems

B.it will affect the way that humans drive their cars

C.it may help people train animals better.

D.it can surely change neurochemistry

4.What Lambert’s team will do next is find out ___________.

A.which parts of the rats’ brain control their emotions

B.why rats have the ability of fighting stress

C.when activities affect the levels of stress

D.why certain activities reduce stress