题目
题型:不详难度:来源:
But that fact has helped Sir John Sulston win the 2002 Nobel Prize for Medicine. Sir John is the founder of the Sanger Institute in Cambridge, which was set up in 1992 to get further understanding of the human genome(染色体组).
To help them do this, they turned to the worm. The nematode(线虫类的)worm is one of the earliest creatures on planet earth. It is less than one millimeter long, completely transparent and spends its entire life digging holes through sand. But it still has lots to say about human life, and what can be done to make it better.
What the worm told Sir John and his colleagues was that each of the cells in the human body is programmed like a computer. They grow, develop and die according to a set of instructions that are coded in our genetic make-up.
Many of the diseases that humans suffer from happen when these instructions go wrong or are not obeyed. When the cell refuses to die but carries on growing instead, this leads to cancer. Heart attacks and diseases like AIDS cause more cell deaths than normal, increasing the damage they do to the body. Sir John was the first scientist to prove the existence of programmed cell death.
小题1:Sir John Sulston got a Nobel Prize for Medicine because he has .
A.found that human beings are similar to the worm |
B.got the fact we share 40 per cent of our genetic structure with the simple worm |
C.found the computer which controls each of the cells in the human body |
D.proved that cell death is programmed |
A.grow without being instructed | B.die regularly |
C.fail to follow people’s instructions | D.develop in the human body |
A.cell deaths | B.diseases | C.instructions | D.cells |
A.The theory of programmed cell deaths. | B.A great scientist—Sir John Sulston. |
C.The programmed human life. | D.Dangerous diseases. |
答案
小题1:D
小题2:A
小题3:B
小题4:A
解析
小题1:由文章最后一句可知。
小题2:末段首句与A项表达意义一致,而C项指的是“没有遵照人的指令”。
小题3:they do to the body是定语从句修饰the damage,they显然是指上文中的diseases。
小题4:若以B为题,文章需介绍他的成长过程、创业经历、工作生活等内容。
核心考点
试题【Whatever our differences as human beings are we all think we’re more like the re】;主要考察你对题材分类等知识点的理解。[详细]
举一反三
But, don"t be afraid. By recognizing the problem, you are taking the first step towards overcoming it.
Believe it or not, a touch of nervousness can sharpen your mind, allowing you to perform more quickly. This is because under stress, the body releases (释放) the hormone adrenaline (肾上腺素), which prepares it for something important that will happen. However, too much anxiety can result in sleeplessness, loss of appetite(胃口)before tests, and poor performance. Some people might feel hot and tired. With great anger they often shout or complain for no reason.
If you worry a lot or are a perfectionist, you are more likely to have trouble with test anxiety. Those who have prepared poorly for a test or have had negative experiences taking tests may also experience test anxiety.
When you feel a storm of anxiety coming on, stop what you"re doing and make your mind a blank. If possible, actually tell yourself to "STOP!" This will get your mind off the stress.
Then think of being at a place of comfort and let your body relax. As you continue the test, find questions you know the answers to and answer them first. This will help restore your confidence.
Important of all, talk to yourself using positive language. Make it a habit to replace each negative thought with a logical reason. For example: "I"ve studied hard and I know the material, so I"m ready to do the best I can."
Another thing you can do is to learn to accept mistakes. In fact, they can be valuable learning opportunities.
Last but not least, start test preparation early - three to five days ahead of the quiz or test. After all, good study habits and skills - for example, time management and note-taking - will give you the feeling that you are in control.
小题1: The best title of the passage is probably______
A.How to beat test anxiety. |
B.What is test anxiety. |
C.The effects of test anxiety. |
D.Experience test anxiety will help you. |
A.who are not well prepared for a test. |
B.who wants everything to be perfect and highest. |
C.who have experiences of failure in exams. |
D.who do poorly in their study. |
A.3 | B.4 | C.5 | D.6 |
A.Mistakes sometime can be valuable and helpful. |
B.Those who have prepared poorly for a test cause test anxiety easily. |
C.Full test preparations will give you the feeling that you are in control. |
D.A touch of anxiety can have a positive effect. |
A.disappointed | B.angry | C.active | D.running a high body temperature |
The Dutch research is one of three human studies that give strong scientific support to the long held belief that eating fish can provide health benefits, particularly to the heart.
Heart disease is the number-one killer in the United States, with more than 550,000 deaths occurring from heart attacks each year. But previous research has shown that the level of heart disease is lower in cultures that consume more fish than Americans do. There are fewer heart disease deaths, for example, among the Eskimos of Greenland, who consume about 14 ounces of fish a day, and among the Japanese, whose daily fish consumption averages more than 3 ounces.
For 20 years, the Dutch study followed 852 middle-aged men, 20 percent of whom ate no fish. At the start of the study, average fish consumption was about two-thirds of an ounce each day, with more men eating lean fish than fatty fish.
During the next two decades, 78 of the men died from heart disease. The fewest deaths were among the group who regularly ate fish, even at levels far lower than those of the Japanese or Eskimos. This relationship was true regardless of other factors such as age, high blood pressure, or blood cholesterol(胆固醇)levels.
小题1:The passage is mainly about _________.
A.the high incidence of heart disease in some countries |
B.the changes in people’s diet |
C.the effect of fish eating on people’s health |
D.the daily fish consumption of people in different cultures |
A.in countries of the yellow-skin race |
B.in highly-developed countries |
C.in the countries with high consumption of fish |
D.in the countries with good production of fish |
A.the amount of fish eaten | B.regular fish-eating |
C.the kind of fish eaten | D.people of different areas |
A.a heart doctor | B.a science researcher |
C.a supporter of healthy eating | D.a university student |
More than 10 years ago, it was difficult to buy a tasty pineapple. The fruits that made it to the UK were green on the outside and, more often than not, hard with an unpleasant taste within. Then in 1996, the Del Monte Gold pineapple produced in Hawaii first hit our shelves.
The new type of pineapple looked more yellowy-gold than green. It was slightly softer on the outside and had a lot of juice inside. But the most important thing about this new type of pineapple was that it was twice as sweet as the hit-and-miss pineapples we had known. In no time, the Del Monte Gold took the market by storm, rapidly becoming the world’s best-selling pineapple variety, and delivering natural levels of sweetness in the mouth, up until then only found in tinned pineapple.
In nutrition(营养) it was all good news too. This nice-tasting pineapple contained four times more vitamin C(维生素C) than the old green variety. Nutritionists said that it was not only full of vitamins, but also good against some diseases. People were understandably eager to be able to buy this wonderful fruit. The new type of pineapple was selling fast, and the Del Monte Gold pineapple rapidly became a fixture in the shopping basket of the healthy eater.
Seeing the growing market for its winning pineapple, Del Monte tried to keep the market to itself. But other fruit companies developed similar pineapples. Del Monte turned to law for help, but failed. Those companies argued successfully that Del Monte’s attempts to keep the golden pineapple for itself were just a way to knock them out of the market.
小题1:We learn from the text that the new type of pineapple is ______.
A.green outside and sweet inside | B.good-looking outside and soft inside |
C.yellowy-gold outside and hard inside | D.a little soft outside and sweet inside |
A.It was rich in nutrition and tasted nice. | B.It was less sweet and good for health. |
C.It was developed by Del Monte. | D.It was used as medicine. |
A. that people enjoy eating B. that is always present
CV. that is difficult to get D. that people use as a gift
小题4:We learn from the last paragraph that Del Monte ______.
A.allowed other companies to develop pineapples |
B.succeeded in keeping the pineapple for itself |
C.tried hard to control the pineapple market |
D.planned to help the other companies |
Are you sometimes a little tired and sleepy in the early afternoon? Many people feel this way after lunch. They may think that eating lunch is the cause of the sleepiness. Or, in summer, they may think it is the heat. However, the real reason lies inside their bodies. At that time – about eight hours after you wake up – your body temperature goes down. This is what makes you slow down and feel sleepy. Scientists have tested sleep habits in experiments where there was no night or day. The people in these experiments almost always followed a similar sleeping pattern. They slept for one long period and then for one short period about eight hours later.
In many parts of the world, people take naps(小睡) in the middle of the day. This is especially true in warmer climates(气候), where the heat makes work difficult in the early afternoon. Researchers are now saying that naps are good for everyone in any climate. A daily nap gives one a more rested body and mind and therefore is good for health in general. In countries where naps are traditional (传统的), people often suffer less from problem such as heart disease.
Many working people, unfortunately, have no time to take naps. Though doctors may advise taking naps, employers do not allow it! If you do have the chance, however, here are a few tips about making the most of your nap. Remember that the best time to take a nap is about eight hours after you get up. A short sleep too late in the day may only make you feel more tired and sleepy afterward. This can slao happen if you sleep for too long. If you do not have enough time, try a short nap – even ten minutes of sleep can be helpful.
小题1:Why do people feel sleepy in the early afternoon according to the text?
A.They eat too much for lunch. |
B.They sleep too little at night. |
C.Their body temperature becomes lower. |
D.The weather becomes a lot warmer. |
A.About 12:30 pm. | B.About 1:30 pm. |
C.About 2:30 pm | D.About 3:30 pm |
A.Just for a Rest |
B.All for a Nap |
C.A Special Sleep Pattern. |
D.Taking Naps in Warmer Climate. |
People believes that climbing can do good to health. Where can you learn the skill of climbing then? If you think that you have to go to the mountains to learn how to climb, you’re wrong. Many Americans are learning to climb in city gyms(体育馆). Here, people are learning on climbing. The climbing wall goes straight up and small holding places for hands and feet.
How do people climb the wall? To climb, you need special shoes and (保护带) around your chest to hold you. There are ropes(绳索)tied to your. The ropes hold you in place so that you don’t fall. A beginner’s wall is usually about 15 feet high, and you climb straight up. There are small pieces of metal that stick out for you to stand on and hold on to. Sometimes it’s easy to see the new piece of metal. Sometimes, it’s not. The most difficult is an your fear. It’s normal for humans to be afraid of falling, so it’s difficult not to feel fear. But when you move away from the wall, the and the ropes hold you, and you begin to feel safe. You move slowly until you reach the top.
Climbing attracts people because it’s good exercise for almost everyone. You use your whole body, especially your arms and legs. This sport gives your body a complete workout. When you climb, both your mind and your body can become stronger.
小题1:What can we infer from the passage?
A.People are fairly interested in climbing nowadays. |
B.It is impossible to build up one’s body by climbing. |
C.People can only learn the skill of climbing outdoors. |
D.It is always easy to see holding places in climbing. |
A.to tie ropes to your | B.to control your fear |
C.to move away from the wall | D.to climb straight up |
A.settlement | B.exercise | C.excitement | D.tiredness |
A.To tell people where to find gyms. | B.To prove the basic need for climbing |
C.To encourage people to climb mountains. | D.introduce the sport of wall climbing |
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