Performing better under pressure

What is the most stressful thing in school? It is probably exams．1.．??????? But some students succeed under pressure，while others struggle．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．2.．???????

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 a balance，according to new research from the University of Missouri，reported Yahoo．

???? 3.．?????? If you become stressed，your brain will start to overload （起负荷） on dopamine．It is like a cup overflowing with water．The quicker you are able to go back to a balance of dopamine，the quicker you can concentrate．4.．??????

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

??? But don't fear，there is good news for every student．5.．???? So，it turns out that practice really makes perfect．

根据短文内容，从下面五个选项中选出能填入文中空缺处的最佳选项，使短文意思通顺、内容完整，并在答题卡上将该项涂黑。

A．This will help you perform better on a test．

B．Exams can put us under a lot of pressure．

C．The study also found that the more practice you get，the less stressed you’ll be．

D．What happens when we take an exam?

E．Our brains work best when there is a balance of dopamine—not too much or too little．

Choose the best topic from A to F according to the meaning of the passage．

1．Years ago，if a person had some problems or wanted to write something down，he／she might keep a diary．But now，more and more people go onto the Internet，and write something in a blog（博客）．

2．In many ways, a diary and a blog are almost the same．Both diaries and blogs can tell what happened to the writer．

3．A blog is a public way of writing．Anyone can read what you write in it．So you'd better be careful of your writing．However，a diary is just opposite．It is personal，your secrets can be kept well．

4．On the Internet, I sometimes read some people's blogs．They often write about studying，working，travelling，spots and so on．From their blogs，I can find some of their thoughts，feelings，etc．

5．If a person isn't afraid to let others know something about himself／herself．A blog is a very good way to record（记录）everyday life．

根据短文内容，从方框中选择适当的选项完成短文。（有两个选项是多余的）

   Today a lot of people work in offices．They __1__ most of their time indoors．In the evenings they usually watch TV or __2__ newspapers．In order to keep __3__ good health, they know they have to exercise．

    Exercising in important．Doctors __4__ it is good for us．It makes us strong．Children who often exercise are more alert（机灵）．This means they do better in tests and schoolwork than those who don’t __5__ exercise．

    There are many ways to exercise．You can walk, run, swim, skate, or play ball games．Make sure you do more exercise in sports __6__, you must like what you’re doing．Exercise enough, but not __7__．It’s best to exercise twice each week．Thirty minutes each time is enough．Try to exercise many __8__ of things that you feel right for you．

   You can exercise in gyms．There are a lot of equipments（仪器）there．The equipment will help exercise your arms, legs and __9__ parts of your body．Some people buy equipments for their homes．But it is expensive．

   Exercising may be __10__．But you can exercise  together with your friends in a gym．You can feel very happy．

What’s the most important thing for you to have in your life? Somebody mentions hard-work, others suggest knowledge, love and luck.
If you arrange（排列） the 26 English letters in order and use numbers to represent each of them, for example, 1 for a, 2 for b, 3 for c…26 for z, you can change an English word into a number. So hard-work becomes 8+1+18+4+23+15+18+11="98," meaning 98 is its mark. Knowledge: 11+14+15+23+12+5+4+7+5="96," love:12+15+22+5="54," and luck: 12+21+3+11="47," a small mark. None of these words can give one a full mark. What about money? It can’t, either.
Then what else? Don’t be worried. You can always find an answer to a problem in your life, when you change your way of looking at things or doing things, or your attitude. Yes, attitude is the word. See for yourself: attitude:1+20+20+9+20+21+4+5=100，a full mark.
Different attitudes lead to different courses of life. Most time people hope for a better life. It is possible that they will have a better life if they change their attitudes. When you change your manner and became friendly towards others, you’ll meet more smiling faces towards you. In the same way, if you take a positive attitude towards failure, you’ll find it’s also rewarding（有益的）though it has caused you losses（损失）.
【小题1】The writer thinks  _________ is the most important thing in a person’s life.