Babies born in summer are more likely to become short-sighted in late life, a study has shown.
As many as a quarter of all cases of short-sightedness are caused by too great an exposure to sunlight in the first weeks of life, say eye experts.
They are advising all parents to put sunglasses on their babies during the first weeks.
Scientists had already established that over-exposure to sunlight caused shortsightedness in animals.
Researchers who compared the months in which babies were born with whether they needed glasses later on say the principle also applies to humans.
A study of almost 300,000 young adults-the largest of its kind-showed that those born in June and July had a 25 per cent greater chance of becoming severely short-sighted than those born in December or January.
Research leader Professor Michael Belkin, of Tel Aviv University, said it was because prolonged illumination(光照) causes the eyeball to lengthen-causing short-sightedness.
Hence the more light a newborn is exposed to, the more the eyeball lengthens and the worse the short-sightedness will be.
The mechanism which lengthens the eyeball is associated with levels of melatonin(褪黑激素), a pigment (色素) which protects the skin against harmful rays of the sun.
In young babies not enough melatonin is released as protection, meaning they are more vulnerable to sunburn and changes to eyeball shape.
Sight expert Professor Daniel O’Leary, of Anglia Ruskin University in Cambridge, said “At the moment we don’t know the precise cause of why light exposure affects sight, but the evidence seems to prove that it is one of the reasons for people becoming shortsighted.”Melatonin is a kind of material to ___________.
A.prevent the eyes from becoming near-sighted |
B.protect the skin from harmful sun rays |
C.make our body strong |
D.protect babies’ eyes from summer sun |
From what Professor Daniel O’Leary says we can conclude that ___________.
A.there is no evidence that shortsightedness is related to exposure to sunlight |
B.whether light exposure affects sight still needs to be further proved |
C.he believes that light exposure can cause shortsightedness |
D.he tries to give the cause of why light exposure affects sight |
On Anger
Doctors say anger can be an extremely harmful emotion, unless you learn how to deal with it. They warn that angry feelings can lead to heart disease, stomach problem, headaches, emotional problems and possibly cancer.
Anger is a normal emotion that we all feel from time to time. Some people express anger openly in a calm reasonable way. Others burst with anger, losing control of themselves. But other people repress their anger. They cannot or will not express it.
For years many doctors thought that repressing anger was more dangerous to a person’s health than expressing it. They said that when a person is angry, the brain releases the same hormones (激素) that are produced during tense situations. They speed the heart rate, raise blood pressure, or sugar into the blood and narrow the blood vessels to the interstices (空隙). In general, the person feels excited and ready to act.
Doctors said that repressing these feelings only makes the feelings continue. And this can lead to many medical problems. Doctors thought a person could prevent these problems by letting the anger out by expressing it freely. But recently some doctors held a different view. They said that people who express anger repeatedly and violently did become, in fact, more and not less angry. They said this, too, can cause medical problems.
Some doctors say that both repressing and expressing anger can be dangerous. They believe that those who express anger strongly may be more likely to develop heart disease, and they believe that those who keep their anger inside may face a greater danger of high blood pressure.
Doctors say the solution is learning how to deal with anger. They say the first step is to admit that you are angry and to recognize the real cause of the anger, then decide if the cause is serious, enough to get angry about. If it is, they say, “Do not express your anger while angry. Wait until your anger has cooled down and you are able to express yourself calmly and reasonably.”
69. Repressing anger was considered to be dangerous because of all the following EXCEPT that __________ .
A. the heart rate increases B. the blood pressure rises
C. the blood contains sugar D. some blood vessels become thinner
70. Which of the following is the more recent view about the expression of anger?
A. It is dangerous to express anger repeatedly or repress one’s anger.
B. One can avoid his medical problems by expressing his anger freely.
C. One’s heart rate will increase if his anger is repressed.
D. One is likely to suffer from high blood pressure in a fit of great anger.
71. When you get angry, which of the following should you do for the sake of health?
A. Repressing the anger.B. Expressing the anger.
C. Treating the anger properly.D. Learning how to make a deal.
72. What is the central topic of this passage about?
A. The different ways of dealing with anger.
B. The dangers of anger and the solution
C. New medical discoveries.
D. The argument between the new and old views about anger.
The journey two divers made some time ago to the deepest point on the earth makes us realize how much of the world still remains to be studied. The two men went down seven miles to the bottom of the Pacific Ocean inside a small steel ball to find out if there are any ocean currents(水流) or signs of life.
It was necessary to set out early, so that the ball would come to the surface in daylight, and be easily found by the mother ship which would be waiting for it. The divers began preparations early in the morning and soon afterwards, when all was ready, the steel ball disappeared under the surface of the water.
The divers felt as if they were going down steps as they passed through warm and cold layers (层) of water. In time the temperature dropped to the freezing point. They kept in touch with the mother ship by telephone telling how they felt. Then, at a depth of 3,000 feet, the telephone stopped working and they were quite cut off from the outside world. All went well until some four hours later at 30,000 feet, the men were frightened by a loud, cracking noise. Even the smallest hole in the ball would have meant instant death. Luckily, though, it was only one of the outer windows that had broken. Soon afterwards, the ball touched the soft ocean floor raising a big cloud of "dust" made up of small dead sea creatures. Here, powerful lights lit up the dark water and the men were surprised to see fish swimming just above them quite untroubled by the great water pressure. But they did not dare to leave the lights on for long, as the heat from them made the water boil. Quite unexpectedly, the telephone began working again and the faint but clear voices of the divers were heard on the mother ship seven miles away. After a stay of thirty minutes the men began their journey up, arriving three hours later, cold and wet through, but none was worse for their experience.
65. The purpose of the divers' journey to the deepest point on the earth was to find
A. if there are water currents, and life in the great depths
B. if people can stand the severe cold in the great depths
C. if there are steps in the great depths
D. if the telephone works well in the great depths
66. The divers set out early in the morning so that .
A. they could return to the surface during the day
B. they could see at the bottom of the ocean
C. they could avoid the cold at night
D. they could stay long at the bottom
67. As the divers went down to the ocean floor, the telephone .
A. kept working all the time
B. stopped working at a depth of 3,000 feet and began working again after they reached the bottom
C. stopped working at a depth of 3,000 feet and began working again at 30,000 feet
D. stopped working at a depth of 3,000 feet and began working again when they returned to the same depth
68. On the ocean floor, the divers found that .
A. there was no life but some small dead sea creatures
B. fish were swimming as freely as they do near the surface
C. fish were not swimming freely in the dark water
D. fish were not swimming freely under the high water pressure
I went over my grandmother’s house today and she didn’t have time for me. You see, the lady’s husband downstairs died and my Grandmother wanted to make some cookies for her. My grandmother did not analyze (分析) how the lady treated her, or if the lady needed any cookies, or even if the lady would like the cookies. She didn’t think how much the lady has done for her. She simply began baking.
My Grandmother turned 94 last week and this I believe is her secret to life. My grandmother is generous (慷慨) and hard-working in a way that is rare for our time. She lives by a simple belief: if someone needs your help, you help. Never mind all the analyzing and thinking whether the person deserves or appreciates the help. My grandmother doesn’t sit around thinking about who might be making use of her: she simply does what is needed.
At 94, she is busy in life. She is making a blanket for a new great grandchild, and worried that I don’t have enough kitchen towels for my home. She is bringing soup to a sick neighbor, and teaching the new wife of her cousin (who is 88) how to cook Italian food.
My grandmother had every right to give up, but she didn’t — and amazingly life did bring her good things, like a husband with twinkling blue eyes who was much ahead of his time and believed that men should do an equal amount of cooking and cleaning in the home, three beautiful children (my father and two aunts), 22 grandchildren, and five great grandchildren. My grandmother is not afraid to give someone she barely knows a bowl of soup. She never keeps herself out of the world.
61. The reason why my grandmother made cookies for the lady downstairs is that ________.
A. she thought the lady was too busy
B. she would make them as thanks to her
C. she thought she should do something for the lady at the special time
D. they had had an agreement before
62. In the writer’s opinion, ________.
A. my grandmother has a secret way of living
B. my grandmother does everything on careful consideration
C. few people are as generous as my grandmother now
D. my grandmother will get something in return
63. Which of the following is NOT true according to the passage?
A. My grandmother cares for her children even some strangers.
B. My grandfather does not treat women in an unfair way.
C. This is a family in which there are nearly 30 people now.
D. My grandmother never keeps everything for herself.
64. We may infer from the text that the writer ________.
A. thinks his grandmother is living a tired life
B. thinks his grandmother is doing what she should do
C. thinks his grandmother should not be so kind
D. is proud of his grandmother
IV..阅读理解(共17小题;每小题2分,满分34分)
Foods from Around the World
Foods that are well known to you may not be familiar to people from other countries. Here are four people’s experiences with foreign food.
Shao Wong is a student in France. He comes from China. “I’d never tasted cheese or even milk before I came here. Cattle are rare in my part of China, so there are no dairy products. I tried milk when I first arrived in France. I hated it! I sampled cheese too, but couldn’t manage more than one bite. I love ice cream, though, and that’s made from milk.”
Birgit is from Sweden. She traveled to Australia on vacation. “I was in a restaurant that specialized in fish, and I heard some other customers order flake. So I ordered some too and it was delicious. Later, I found out that flake is an Australian term for shark. After that pleasant experience, whenever I see a new food I try it out on purpose. You know why? I remember how much I enjoyed flake.”
Chandra is a dentist in Texas. She originates from India. “I’m frightened of eating new foods because they might be made from beef. I’m a Hindu, and my religion forbids me to eat meat from the cow. It’s a sacred animal to Hindus, so that’s the reason I can’t eat hamburgers or spaghetti with meatballs.”
Nathan is American. He taught for a year in China. “My friends gave me some 100-year-old eggs to eat. I didn’t like the look of them at all. The insides were green, but my friends said the color was normal. The Chinese put chemicals on fresh eggs. Then they bury them in the earth for three months. So the eggs weren’t really very old. Even so, I absolutely refused to touch them.”
Life in a new country can be scary, but it also can be fun. Would you sample a 100-year-old egg? Would you order shark in a restaurant?
56. Which of the following sentences is true about Shao Wong?
A. He is a French – Chinese.
B. Cattle are seldom raised in his hometown.
C. He doesn’t like any diary products.
D. He didn’t taste cheese because he hated it.
57. What kind of girl is Birgit?
A. Religious. B. Brave. C. Confident. D. Open- minded.
58. Chandra is frightened of eating food made from beef, because _________.
A. It’s against Hindus’ religion.
B. She is a doctor and she thinks beef is not easy to chew and digest.
C. She is an Indian.
D. Hindus think beef is not tasty.
59. The underlined word “Sacred” in paragraph 4 means _________.
A. frightening B. large C. man – eating D.greatly respected
60. What can you infer from this passage?
A. Foods that are well known to you may not be familiar to people from other countries.
B. Despite (虽然) cultural differences in food, have a try and maybe you’ll get used to it.
C. A vacation is a good way to learn about new foods. Be sure to go on vacation more often.
D. People dislike eating new foods only because their religion forbids it.
通读对话,然后选择可以填入相应空白处的五个答案。
A:Good morning. ____
B:Yes, please. Could you introduce me a nice place to see over the weekend?
A:OK, Qingdao is a nice place to visit. ____ The weather is neither hot nor cold.
B:Sounds good. ____
A:You can get there by train.
B:Shall I visit places of interest by bus in Qingdao?
A:Sure. ____
B:Really perfect. ____
A:280 yuan each person. It includes train tickets, park tickets, hotel and meals.
B:Well. It’s nice. I’d like to book the tour for two.
A.It’s the right time to go there. | B.Which place are you going to visit? |
C.How can I get there? | D.Hope you will have a great time there. |
E. How much does it cost? F. Can I help you, madam?
G. Our sightseeing bus will take you around the city.