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Dear Jin Jing,

Your problem is common one among middle school students£®Maybe the following advices can help you£®First in all, believe in yourself£®Your greatest problem is that you lack self-confidence£®The first thing you must do it is to smile at your classmates£®One smile speaks loud about your wish to make friends than any words£®Your smile will show that you are friendly to him£®Next, trying talking with a student who is as shy as you or who share the same interest with you£®You can discuss your studies with a classmate and you can also talk about your hobbies£®Unless anyone is in trouble, you should be ready to help him or her£®Once you have confidence, you can make as many friends as possibly£®

Yours,

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Scientists have discovered a special biological behavior in dolphins£¨º£ëࣩ that could lead to a treatment for late-onset diabetes£¨Íí·¢µÄÌÇÄò²¡£© in humans. Studies on dolphins found that healthy dolphins switch into a diabetic-like state overnight when they are not feeding, but return to normal when they eat the following morning.

The extraordinary finding has led scientists to suggest that dolphins have ¡°genetic switch¡± that allows them to imitate diabetes while they are not feeding for a night, without suffering any ill effect.

If researchers can identify a similar genetic pathway in human, they may be able to develop drugs to effectively switch off diabetes. Some 2.2 million people in Britain have type 2 (or late-onset) diabetes, a figure that is expected to reach 4 million by 2025 as a consequence of rising levels of obesity£¨·ÊÅÖ£©.

The tissues of people with type 2 diabetes have become resistant to insulin£¨ÒȵºËØ£©so they lose the ability to control sugar levels in their blood. The condition can damage the heart, eyes, kidneys£¨ÉöÔࣩ and nerves and contribute to 5% of all deaths, according to the World Healthy Organisation.

Dolphins appear to imitate diabetes to keep high levels of blood sugar when food is rare. Like humans, dolphins need some sugar in their blood for their brains to function normally. Venn-Watson¡¯s team analysed 1,000 blood samples£¨Ñù±¾£© from 52 dolphins while they didn¡¯t eat anything overnight and fed in the morning. At night time, the dolphins¡¯ metabolism£¨Ð³´úл£©changed greatly and showed similar characteristics to that seen in people with type 2 diabetes.

¡°It is our hope that this discovery can lead to new ways to prevent, treat and maybe even cure diabetes in humans,¡± said Stephanie Venn-Watson, director of clinical research at the National Marine Foundation in San Diego.

1.What¡¯s the main idea of the passage?

A. Humans get some idea of treating diabetes from dolphins.

B. Dolphins can switch into a diabetic-like state overnight.

C. Humans can suffer the same disease as dolphins.

D. Dolphins should be fed regularly to avoid diabetes.

2.The key to applying the finding to curing human diabetes lies in ____________.

A. producing insulin in a larger amount

B. developing drugs from healthy dolphins

C. identifying a similar genetic pathway in human

D. analysing more blood samples from hungry dolphins

3.Which of the following statements is TRUE according to the passage?

A. Scientists have found a similar genetic switch in humans.

B. More British people will suffer type 2 diabetes due to obesity.

C. 2.2 million people with type 2 diabetes die in Britain every year.

D. Dolphins imitate diabetes to avoid a high blood sugar level.

4.What will happen to dolphins if not fed for a night according to Venn-Watson?

A. Their metabolism breaks down.

B. They become resistant to insulin.

C. Their heart and kidneys are damaged.

D. They keep high levels of blood sugar.

A year ago, I paid no attention to English idioms, though my teacher emphasized(Ç¿µ÷)the importance again and again. But soon, the importance of English idioms was shown in an amusing experience

One day, I happened to meet an Englishman on the road, and soon we began to talk. As I was talking about how I was studying English, the foreigner seemed to be surprised . Gently shaking his head, shrugging his shoulders, he said, ¡°You don¡¯t say!¡± ¡°You don¡¯t say!¡± I was puzzled. I thought , perhaps this is not an proper topic. ¡°Well, I¡¯d better change the topic. ¡° So I said to him, ¡°Well, shall we talk about the Great Wall? By the way, have you ever been there?¡± ¡°Certainly, everyone back home will laugh at me if I leave China without seeing it. It was wonderful.¡± He was deep in thought when I began to talk like a tourist guide. ¡°The Great Wall is one of the wonders in the world. We are very proud of it.¡± Soon I was stopped again by his words: ¡°You don¡¯t say!¡± I couldn¡¯t help asking, ¡°Why do you ask me not to talk about it ?¡± ¡°Well, I didn¡¯t ask you to do so,¡± he answered, greatly surprised. I said, ¡°Didn¡¯t you say ¡®you don¡¯t say¡¯?¡± Hearing this, the Englishman laughed to tears. He began to explain, ¡®You don¡¯t say.¡¯actually means ¡®really¡¯! It is an expression of surprise. Perhaps you don¡¯t pay attention to English idioms.¡± Only then did I know how foolish I had been. Since then I have been more careful with idiomatic expressions. Remember: what the English teachers said is always right to us students.

1.At first, on hearing ¡°You don¡¯t say¡±, I thought the foreigner meant____.

A. He was not interested in the topic

B. He was only interested in the Great Wall

C. I had talked too much

D. I had to stop talking

2.The underlined word in the first paragraph probably means____.

A. interesting B. important

C. terrible D. unlucky

3.Which of the following is true according to the passage?

A. The Englishman left China without seeing the Great Wall.

B. The Englishman wanted to see the Great Wall after I talked about it.

C. The Englishman wanted me to act as his guide.

D. The Englishman visited the Great Wall and thought it worth (ÖµµÃ) visiting.

4.After the Englishman explained the idiom, _____.

A. I thought the Englishman had made me a fool.

B. The Englishman became a real fool.

C. I felt very foolish

D. I became more careful in everything.

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You are sure to improve your English if you are determined. But you should always carry on studying. Here is a list of tips to help you.

The Internet is your friend. You probably have already used several websites for your study.

Look for magazines that relate to the subjects you might be interested in, things like Reader's

Digest, National Geographic or Nature. 1. If you invest in a paper copy, you can write and make notes on it.

2. When you are in a test, you are under pressure to understand and answer questions quickly. However, it's better to take time to experiment when preparing for exams. If you are using exam practice materials, try reading the text before the questions, and then the questions before the text.

Read for fun. Australians read a lot as you may have noticed if you travel by bus or train. 3. People who are good at reading are people who enjoy reading.

Practise reading quickly. Try to read in groups of words ¡ª the eyes move in little jumps when you read, they do not scan steadily. 4.

Use the strategies of surveying, skimming and scanning, but not all the time. Another strategy you can try is to scan the text first for words you do not know. Check their meaning and pronunciation, and then read the text.

Take it with you. 5. Pull it out and read for a few minutes when you have nothing else to do.

Remember, practice makes perfect, so read for at least 30 minutes a day.

A. Try different reading styles.

B. Put a book or a magazine in your pocket or bag when you go out.

C. You may start your own library.

D. Then see how many words you can read in one minute.

E. These can be read online or in hard copy.

F. Join in a chat room and work in groups.

G. Read something you enjoy, e.g. the Harry Potter stories.

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