题目
题型：不详难度：来源：
Something in chocolate could be used to stop coughs and lead to more effective medicines, say UK researchers.
Their study found that theobromine, found in cocoa, was nearly a third more effective in stopping coughs than codeine, which was considered the best cough medicine at present.
The Imperial College London researchers who published their results online said the discovery could lead to more effective cough treatment. “While coughing is not necessarily harmful(有害的) it can have a major effect on the quality of life, and this discovery could be a huge step forward in treating this problem,” said Professor Peter Barnes.
Ten healthy volunteers(志愿者) were given theobromine, codeine or placebo, a pill that contains no medicine, during the experiment. Neither the volunteers nor the researchers knew who received which pill. The researchers then measured levels of capsaicin, which is used in research to cause coughing and as a sign of how well the medicine are stopping coughs.
The team found that, when the volunteers were given theobromine, the capsaicin need to produce a cough was around a third higher than in the placebo group. When they were given codeine they need only slightly higher levers of capsaicin to cause a cough compared with the placebo.
The researchers said that theobromine worked by keeping down a verve activity(神经活动), which cause coughing. They also found that unlike some standard cough treatments, theobromine caused no side effects such as sleepiness.
小题1:According to Professor Barnes, theobromine ______.
| A．cannot be as effective as codeine |
| B．can be harmful to people’s health |
| C．cannot be separated from chocolate |
| D．can be a more effective cure for coughs |
| A．Theobromine. | B．Codeine. | C．Capsaicin. | D．Placebo. |
| A．were patients with bad coughs |
| B．were divided into the three groups |
| C．received standard treatments |
| D．suffered little side effects |
| A．Codeine: A New Medicine | B．Chocolate May Cure Coughs |
| C．Cough Treatment: A Hard Case | D．Theobromine Can Cause Coughs |
答案
小题1:C
小题2:C
小题3:B
小题4:B
解析
小题1:从文中第二段可以看出。
小题2:第四段最后一句。
小题3:第四段介绍可以看出，三个组分别服用三种药，看哪一种疗效更好。
小题4:文章开头就说了Something in chocolate could be used to stop coughs.接下来介绍cocoa中发现的theobromine是治疗咳嗽的最好的药，还用实验作了证实，因此，B项最合题意。当然我们也可以用排除法做此题，其它三个选项与文章内容不符。
核心考点
试题【Something in chocolate could be used to stop coughs and lead to more effective m】；主要考察你对题材分类等知识点的理解。[详细]
举一反三
They accept the lifestyle as normal. Government workers in Washington D.C, for example, frequently work sixty to seventy hours a week. They don’t do this because they have to; they do it because they want to.
Workaholism can be a serious problem. Because true workaholics would rather work than do anything else, they probably don’t know how to relax.
Is workaholism always dangerous? Perhaps not. There are, certainly, people who work well under stress. Some studies show that many workaholies have great energy and interest in life. Their work is so pleasurable that they are actually very happy. For most workaholics, work and entertainment keep them busy and creative.
Why do workaholics enjoy their jobs so much? There are several advantages to work. Of course, it provides people with paychecks, and this is important. But it offers more than financial security. It provides people with selfconfidence; they have a feeling of satisfaction when they’re produced a challenging piece of work and are able to say,“I made that.” Psychologists claim that work gives people an identity through participation in work, they get a sense of self and individualism. In addition, most jobs provide people with a socially acceptable way to meet others. Perhaps some people are compulsive about their work, but their addiction seems to be a safe-even an advantageous-one.
9.The passage indicates that workaholics .
A.just know work but nothing else
B.are willing to work hard for long hours without pay
C.find their work provide them more satisfaction and selfconfidence than how much they are paid
D.has the work with more responsibility than others
10.One of the reasons that some people are not willing to quit their jobs even in their eighties and nineties is that
A.they are in the need of financial security
B.they would rather work than be disturbed by domestic affairs
C.they long for a sense of identity and being accomplished
D.they may have health problems from sheer boredom
11.This passage is mainly about .
A.workaholics are usually successful people, but their lives are in a mess
B.workaholism can lead to serious problems but it can also create a joyful life
C.people who are absorbed in their work may enjoy movies, sports and other kinds of entertainment
D.those who work even under difficult conditions may be very happy
12.It can be inferred from the passage that .
A.in the eyes of all the common people workaholics are peculiar
B.to workaholics, work is the sole source of happiness
C.a piece of challenging work may provide the workaholics a sense of satisfaction
D.workaholics are as addicted to their job as other people are to drugs or alcohol
As evidence has mounted, some doctors have begun recommending a daily drink for patients of heart diseases. But most physicians are not ready to reommend a regular happy hour for everyone. The risks of teetotalling(绝对戒酒) are nothing compared with the dangers of too much alcohol, including high blood pressure, strokes and liver troubles—not to mention violent behaviour and traffic accidents. Moreover, some studies suggest that even moderate drinking may increase the incidence of breast and colon cancer. Until there is evidence that the benefits of a daily dose of alcohol outweigh the risks, most people won’t be able to take a doctor’s prescription to the neighbourhood bar or liquor store.
1.The medical article quoted in the first paragraph indicates .
the way in which alcohol can help the heart
how a couple of cocktails daily can stop heart problems
why alcoholic drinks are dangerous to one’s health
that reports on the advantages of alcohol were misled
2.Experiments showed that nondrinkers had .
| A．larger amounts of good cholesterol |
| B．smaller amounts of good cholesterol |
| C．higher blood pressure |
| D．lower blood pressure |
is recommended by most doctors for heart patients
should be allowed on prescription
is still not medically advisable
is not related to liver problems
4.The main theme of this passage is .
the change in recent drinking habits
the connection between cancer and alcohol
whether moderate drinkers outlive nondrinkers
whether alcohol may be good for one’s health
Most people, when they travel to space, would like to stay in orbit for a few days of more. And this stands to reason, if you’re paying $20,000 for your trip to orbit! Strain order for tourism to reach its full potential there’s going to be a need for orbital accommodation---or space hotels. What would a space hotel actually be like to visit? Hotels in orbit will offer the services you expect from a hotel------private rooms, meals, bars. But they’ll also offer two unique experiences: impressive views----of Earth and space---and the endless entertainment of living in zero gravity---including sports and other activities that make use of this.
The hotels themselves will vary greatly----from being quite simple in the early days to huge luxury structure at a later date. It’s actually surprising that as later as 1997, very few designs for space hotels were published. This is mainly because those who might be expected to design them haven’t expected launch costs to come down far enough to make them possible.
Lots of people who’ve been to space have described vividly what it’s like to live in zero gravity. There are obviously all sort of possibilities for dancing, gymnastics, and zero-G sports. Luckily, you don’t need to sleep much living in zero gravity, so you’ll have plenty of time for relaxing by hanging out in a bar with a window looking down at the turning Earth below.
Of course all good things have come to an end. Unfortunately, And so after a few days you’ll find yourself heading back enough you’ll be much more expert at exercising in zero gravity than you were when you arrived. You’ll be thinking how soon you can save up enough to get back up again---or maybe you should change jobs to get to work in an orbiting hotel.
小题1:When traveling in space, most people would like to stay in orbit for a few days because _______.
| A．It is expensive to travel in space |
| B．they would find the possible life in other star systems |
| C．they could enjoy the luxury of space hotels |
| D．they want to realise the full potential of tourism |
| A．The gravitational pull | B．The special views. |
| C．The relaxation in a bar | D．The space walk. |
| A．When was the space traveling made possible? |
| B．What are the unique experiences that space hotels will offer? |
| C．Why were there not many published designs for space hotels? |
| D．How can the travelers enjoy themselves in space hotels? |
| A．traveling in space | B．the ways of living in space hotels |
| C．zero gravity and space hotels | D．the description of space hotels |
Don"t have diets that restrict （限制）certain food groups, either. A diet that requires you to say no to bread or pasta or allows you to eat only fruit is unhealthy. You won"t get the vitamins and minerals you need. And although you may lose weight, you"ll probably gain it back as soon as you start eating normally again.
Some people start dieting because they think all the problems in their lives are because of weight. Others have an area of their lives that they can"t control, like an alcoholic parent, so they focus on something they can control — their exercise and food intake.
People who diet may get lots of praise from friends and family when they start losing pounds, which makes them feel good. But eventually a person reaches a weight level — and doesn"t lose as much weight as before because the body is trying to keep a healthy weight, so they aren"t any happier.
Some people may find it hard to control their eating, so they stick with an extreme diet for a little while, but then eat tons of food. Feeling guilty about the binge, they use laxatives（泻药）. Eating too little to maintain a healthy weight or eating only to throw up the calories are both eating disorders, which are harmful to a person"s health.
1. Which is not the result of restricting certain food groups?
A. lose weight for a short period B. unhealthy
C. short of nutrition D. hungry
2. The reasons why some people start and keep dieting DON’T include__________.
A. They think their trouble comes from their weight.
B. They have an alcoholic parent.
C. Other people’s praise when they lose some weight.
D. There is something they can’t control except food intake.
3. The underlined phrase in the last paragraph refers to _________.
A. a fat-free diet B. a special diet
C. eating too much D. eating too little
4. Which of the following statements is true?
A. A person needs about 800 calories each day.
B. A person who doesn’t eat bread is unhealthy.
C. An improper diet may cause eating disorder.
D. Fat takes up the most part of calories inside body.
5. According to the passage, when people want to lose weight, they should_________.
A. avoid eating some food that can lead to being fat B. control their eating amount and times
C. have a healthy and balanced diet D. throw up some of what they eat
We all look forward to the day when a simple medical test can find cancer while it is still small. Researchers around the world are working on such a test. Most of their work deals with the examination of the blood.
Researchers in Boston have found something in the blood of cancer patients that does not appear in healthy persons. The test showed which persons had cancer and which did not. It was correct more than 90 percent of the time.
The researchers believe the test may be able to show cancer very clearly in its development. Cancers discovered early usually can be treated successfully.
The test examines very small bits of fat in the blood called lipids (脂质). Cancers seem to change lipids although doctors do not know why. The test showed differences between the lipids of the persons with cancer and the lipids of those without cancer.
The researchers say the new test could be a step to develop a simple way to check patients for cancer before the disease shows on an X-ray.
1. Who will fail cancer from the study of the researchers?
A. The young. B. The middle age and the older.
C. The man. D. The woman.
2. The underlined words "such a test" refer to________.
A. the test that shows which persons have cancer and which don’t .
B. the test that may be able to show cancer very early in its development,.
C. a simple medical test that cannot find cancer when it is -small
D. a new test that could be a step to develop a difficult way
3. Which of the following statements is true according to the passage?
A. Cancers have much to do with something in patients’ blood.
B. People living in better conditions are most likely to be attacked by cancer.
C.X-raying is the best way to determined whether a person has cancer or not.
D. Cancers have nothing to do with a person’s habits and living conditions.
4. What would be the best title for the passage?
A. A simple way to cancer B. Cancers can be cured
C. How to find cancer D. Early discovery of cancer
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