题目内容

What is the most stressful thing in school? It is probably exams. Exams can put us under a lot of pressure. But some students do better under pressure. while others do not. So, why do some students perform better under stress?

It all comes down to dopamine(多巴胺). Dopamine is a chemical in our body that sends signals(信号) in the brain. It has many important roles: affecting memory, attention and how we learn. Our brains work best when there is a balance of dopamine--not too much or too little.

Our brains control dopamine in two ways. It either takes out dopamine quickly, or gradually. Exam success can be linked to how fast dopamine goes back to an even balance, according to new research from the University of Missouri, reported Yahoo.

What happens when we take an exam? If you become stressed, your brain will start to overload on dopamine. It is like a cup overflowing with water. The quicker you are able to go back to an even balance of dopamine, the quicker you can concentrate, helping you perform better on a test.

Scientists found that, during a test, people who slowly got back to an even balance of dopamine scored 8 percent lower. That’s the difference between a good mark and a bad mark.

But don’t fear, there is good news for every student. The study also found that the more practice you get, the less stress you’ll have.

So, it turns out that practice really does make perfect.

1.Dopamine is a chemical in our body that ______.

A.puts us under a lot of pressure

B.sends signals in the brain

C.keeps our brains working

2.Which things does dopamine play a role in?

① remembering something

②having a good rest

③paying attention to the teachers

④choosing the way we learn

A.①②③ B.①③④ C.②③④

3.What does the underlined word “overload” mean in Chinese?

A.产生 B.超载 C.下载

4.Some students do better under stress because ______.

A.they can go back to a good balance of dopamine quickly

B.they have a lot of dopamine

C.they go back to a balance of dopamine slowly

5.What can’t we learn from story?

A.Our brain either takes out dopamine quickly, or gradually.

B.The quicker you can go back to an even balance of dopamine, the better you can do on a test

C.Practice cannot help you do better under stress

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Francisco, a street musician, whom my friend happened to know from his own musician day, was playing the saxophone on a street corner. His name was Clifford, and he had attracted a large crowd with his performance. After he finished, my friend introduced him to me and his daughter. Clifford asked her if she played any instrument. When she replied that she was taking trumpet(小号)lessons and played in her junior high school band, he said, "That's fine, little lady. Learn your instrument well and you can play anything."

Somehow these simple yet wise words struck me as proper not only for a trumpet player but also for a reader. If you learn to read well, you can read anything you want—not just newspapers and magazines, but more difficult material like philosophy, film criticism, military history—whatever interests you as your confidence grows. You would not be limited(限制)in any way. If you have the vocabulary—or at least a good dictionary near at hand—you can pick up a book, concentrate on it, and make sense of the author's words.

In the United States, reading instruction often ends at elementary school, so students sometimes have difficulty as they progress through school. They must take their assignments, armed only with their elementary school reading skills. The result, too often, is frustration and loss of confidence. And the assigned reading in your college courses will be even greater than they were in high school. Developing Reading Skills is designed to accomplish(完成)several tasks: to show you the skills that will enable you to read with greater comprehension, to help you cope with reading assignment with confidence, and to teach you to become an active reader.

1.The talk between the girl and Clifford serves as an introduction to________.

A.the importance of reading

B.the connection between playing instruments and reading

C.the necessity of learning to play an instrument

D.the variety of reading materials

2.It can be inferred(推断)from the story that________.

A.Clifford was good at playing the saxophone

B.the author's friend was once a street musician

C.the 12-year-old girl played the trumpet very poorly

D.Clifford was a good music teacher

3.We can infer from the last paragraph that Developing Reading Skills________.

A.is directed to elementary school students

B.centers around vocabulary building skills

C.aims at helping students read better

D.offers elementary reading skills

4.The underlined word "struck" in Paragraph 2 most probably means "________".

A.impressed B.influenced C.proved D.awakened

5.With good reading skills, you can________.

A.understand anything you read without difficulty

B.work out the author's meaning only if you concentrate on the book

C.understand what you read with the help of a good dictionary

D.concentrate on whatever you read

We shouldn’t talk loudly in the library. We shouldn’t eat food there, either. (合并为一句)

We should ________ talk loudly ________ eat food in the library.

Those dinosaurs were only models, ________ they looked very real.

A.and B.but C.for D.or

Which of the following underlined parts is pronounced /t/?

A.entered B.enjoyed C.watched D.opened

—Could you please tell me______ ?

—Let me see. In twenty minutes.

A.how often you go to your uncle’s home

B.how long it takes from your home to school

C.how soon the meeting will begin

—It’s reported that a seven-year-old kid works as a deliveryman (快递员) in Shandong ? Why?

—Because after his father’s death, he has no other______ family members to depend on.

A.living B.alive C.lively

— There’s ________ with my computer.

— Oh, it doesn’t matter. I can help you.

A.wrong something B.something wrong C.anything wrong

The article gives students some about how to stay safe online.

A.advise B.suggestions C.advantages D.activities

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