试卷：unit2
Part 2 答案：BAADB
C. He feels very tired. D. He was ill last month.
1.A. Begin swimming. B. Start weight lifting.
C. Look at herself differently. D. Eat better to lose weight.
3.A. Bill took drugs. B. Bill exercised a lot. C. Bill grew new muscles. D. Bill had a new coach.
4.A. He was able to exercise every day after work. B. He cannot count the ways his life has changed. C. Others have asked him how he's gotten healthy. D. People have changed their attitude toward him.
5.A. Healthy vegetables are very expensive for some people. B. The woman doesn't have a good excuse not to exercise. C. Running outside is the best way for a person to exercise.
D. Healthy living isn't something to make excuses for.
Part 3 答案：ADBDC DBBAC
1.A. How water-dense foods can help you lose weight. B. What fruits and vegetables have in common. C. Why one should eat foods with fewer calories.
D. Where people get most of their calories.
2.A. They are rich in taste. B. They give calories for energy.
C. They contain many calories. D. They contain a lot of water.
3.A. A sandwich. B. A bowl of soup. C. A salad. D. Some fruit.
4.A. Eating only when hungry. B. Eating foods low in calories.
C. Getting one's water from food. D. Filling up one's stomach with water.
5.A. They are convenient. B. They are low in calories
.C. They cost more. D. They leave you hungry.
6.A. Boyfriend and girlfriend.B. Husband and wife.C. Father and daughter.D. Mother and son.
7.A. Find girlfriends easily. B. Talk to the woman quite often.
C. Exercise according to a program. D. Sing the song All You Need is Love.
8.A. He's always feeling sorry for himself. B. He's too fat to be attractive for girls.
C. He's always too busy exercising. D. He won't go anywhere with a girlfriend.
9.A. Finding love. B. Losing weight. C. Exercising .D. Working.
10.A. Finding love is not as important as losing weight. B. Feeling sorry for yourself will not help you find love. C. Being thin and exercising are important in finding love.
D. Getting a girlfriend is impossible for fat people.
Part 4 答案：ADBAA DABAA
1.A. How to beat a bad mood. B. How to do physical exercise.
C. How to talk bad moods out. D. How to be involved in physical exercise.
2.A. To have enough rest.B. To do some housework.C. To take drugsD. To talk it out.
3.A. They are the most effective. B. They are useful but aren't best.
C. They are only what doctors like. D. They are ineffective.
4.A. Swimming. B. Doing housework. C. Cooking D. Washing.
5.A. Three to five times a week. B. Twenty minutes a week.
C. No less than three times a week. D. No more than five times a week.
6.A. Lower cost for buying bicycles. B. Cars being left at home these days.
C. More knowledge about bicycles. D. The need to keep the environment clean.
7.A. People want to save time. B. Bicycles are not convenient.
C. People trust themselves with cars. D. People are sure of their driving skills.
8.A. They need to leave their cars at home. B. They need to have more knowledge about bicycles.
C. They need to do more physical exercise.D. They need to live in the center of the city.
9. A. 80%. B. 8%. C. 18%. D. 10%.
10. A. The choice between bicycles and cars .B. Exercises and bicycles.
C. Environmental problems. D. Short trips and long trips.
Part 6答案：ADCDC ABCBC
1. While a _____A___ amount of stress can be beneficial, too much stress can exhaust you.
A. Moderate B. Modern C. Large D. striking
2. If you _______D______ your demand, then maybe you will have more chance of getting what you want.
A. Conduct B. Deny C. Grant D. moderate
3. I don't think he is old ____C____ to do the job.
A. Sufficient B. Plentiful C. Enough D. approximate
4. The ____D___ year begins when school opens in September.
A. Studying B. Learning C. Teacher D. academic
5. The physicist needed more ______C__ before his theory could be accepted.
A. Finance B. Publications C. Evidence D. recognition
6. Neither of the young men who had applied for a position in the university _____A___.
A. was accepted B. were accepted C. are acceptedD. have been accepted
7. If tap water were as dangerous as some think, ______B__ would be getting sick.
A. a lot of more usB. a lot more of usC. more a lot of us D. a lot us of more
8. It was very kind of you to do the washing-up, but you ___C_____ it.
A. wouldn't have done B. mustn't have done C. didn't have to do D. mightn't have done
9. Jane never dreams of _______B_ for her to be sent abroad very soon.
A. there to be a chance B. there being a chance C. there be a chance D. being a chance
10. Americans consume ___C_____ as they actually need every day.
A. twice protein as much B. twice protein as many
C. twice as much protein D. protein as twice much
Part 9 答案：DCBDA CBDBA ABCDC
Summer is the ideal time of year for one of my favorite outdoor activities, hiking (徒步旅行). It is much more than just a great workout. You get to be outside of the confines of a gym and be together with nature. You breathe in the fresh, clean air while the city life you endured all week just fades away. You are suddenly transported somewhere else. You are suddenly in a place where you can appreciate the untouched, simplistic beauty of nature. The trees are green, the wild flowers are growing and the woods are filled with activity. Once you experience it, you're hooked.
Whether hiking in the deserts of Arizona or the mountains of Alberta, you suddenly realize you are not alone and there is something much bigger at work. There is a realization that life is precious and you think deeply about your life.
Another wonderful part of hiking is that you can participate at any level and it is, for the most part, free. It is a great way to escape the rat race, even during the week. If you have any problems you need to solve, hiking is really good for clearing your head and removing stress.
If hiking sounds intimidating to you, it is essentially walking on a whole new level. Experts have spoken about the benefits of walking for years. Walking doesn't stress your legs as much as running and countless studies agree walking leads to weight loss and better health. It is good for your heart, reduces illness and has even been shown to enhance your thinking. So why wouldn't you want to do it?
1. What makes hiking different from other forms of exercise? D
A. It is a great workout. B. It is a summertime activity.
C. It is an activity that slows breathing. D. It is an exercise that is done outside.
2. What disappears for someone who is hiking? C
A. Green trees .B. Beautiful nature. C. City life. D. Precious things.
3. Once you take up hiking in nature as something you do, you _____B___.
A. feel much bigger than before B. love it and want to do it often
C. wish you lived outside of the city D. look for new hiking places, like Arizona
4. How do you feel after you've begun hiking? D
A. Intimidated. B. Thoughtful C. Lonely. D. Free from stress.
5. How is running different than walking? A
A. Running is harder on the legs. B. Running is better for weight loss.
C. Running is good for a person's heart. D. Running is a cause for improved thinking.
Another example of the dangers of a restricted diet may be seen in the disease known as "beri-beri" (脚气病), which used to affect large numbers of Eastern peoples who lived mainly on rice. In the early years of the 20th century, a Dutch scientist named Eijkman was trying to discover the cause of beri-beri. At first he thought it was transmitted (传送) by a germ (细菌). He was working in a Japanese hospital, where the patients were fed on rice which had had the external husk (壳) removed from the grain, called "white rice." It was thought this would be easier for weak, sick people to digest.
Eijkman thought his germ theory was confirmed when he noticed the chickens in the hospital yard, which were fed on scraps (碎片) from the patients' plates, were also showing signs of the disease. He then tried to isolate the germ he thought was causing the disease, but his experiments were interrupted by a hospital official, who ruled that the huskless polished rice was too good for chickens. The chickens should be fed cheap rice with the external covering still on the grain, called "brown rice."
Eijkman noticed that the chickens began to recover on the new diet. He began to consider the possibility that eating brown rice somehow prevented or cured beri-beri—even that a lack of some ingredient in the husk might be the cause of the disease. Indeed this was the case. The element needed to prevent beri-beri was shortly afterwards isolated from rice husks and is now known as Vitamin B. The white rice, though more expensive, was keeping alive the disease the hospital was trying to cure.
6. From the context, what do you think the author mentions in the paragraph that is just before this first paragraph? C
A. One example of the importance of vitamins. B. One example of the benefits of eating healthy foods. C. One example of the dangers of a restricted diet.
D. One example of the benefits of various vitamins.
7. The disease "beri-beri" ____B____.
A. kills large numbers of Western peoples B. is a vitamin deficiency disease
C. is transmitted by diseased rice D. can be caught from diseased chickens
8. The chickens Eijkman noticed in the hospital yard __D______.
A. couldn't digest the huskless rice B. proved beri-beri is transmitted by germs
C. were later cooked for the patients' food D. were suffering from vitamin deficiency
9. Huskless, white rice _______B_.
A. was cheaper than brown rice B. was less beneficial to the body than brown rice
C. was more beneficial to the body than brown rice D. cured beri-beri
10. The ingredient missing from white rice ___A_____.
A. was Vitamin B B. did not affect the chickens
C. was named the Eijkman vitamin D. has never been accurately identified
Whether or not vegetarianism should be advocated for adults, it is definitely unsatisfactory for growing children, who need more protein than they can get from vegetable sources. A lacto-vegetarian (part milk, part vegetable) diet, which includes milk and milk products such as cheese, can, however, be satisfactory as long as enough milk and milk products are consumed.
Meat and cheese are the best sources of usable animal protein and next come milk, fish and eggs.
Slow and careful cooking of meat makes it more digestible and assists in the breaking down of the protein content by the body. When cooking vegetables, however, the vitamins, and in particular the water-soluble (溶解于水的) Vitamin C, should not be lost through over-cooking.
With fruit, vitamin loss is too small to be important, because the cooking water is normally eaten along with the fruit, and natural chemicals in the fruit help to hold in the vitamin C.
Most nutrition (营养) experts today would recommend a balanced diet containing elements of all foods, largely because of our need for sufficient vitamins. Vitamins were first called "added food factors" when they were discovered in 1906. Most foods contain these other substances necessary for health, in addition to carbohydrates (碳水化合物), fats, minerals and water. The most common deficiency in Western diets today is lack of vitamins. The answer is variety in food. A well-balanced diet, having sufficient amounts of milk, fruit, vegetables, eggs, and meat, fish or chicken (i.e. any good protein source), usually provides the minimum daily requirement of all the vitamins.11. Vegetarianism is not suitable for growing children because they ____A____.
A. need more protein than vegetables can supply B. cannot digest vegetablesC. use more energy than adultsD. cannot easily digest milk and milk products
B. 12. A lacto-vegetarian can eat ____B_____.A. cheese, beef, and nutsB. carrots, milk, and riceC. potatoes, ham, apples, and beansD. tomatoes, bacon, and oranges13. Slow and careful cooking of meat ___C_____.
A. preserves the vitamins B. breaks down the vitamins
C. makes it easier to digest D. reduces the protein content
14. The reason why the vitamin loss in fruit is not important is that __D______.
A. vitamins in fruit are not removed by cooking B. chemicals are often used in the cooking of fruit
C. fruit has too few vitamins to be important to one's dietD. the cooking water is usually eaten along with the fruit
15. Most nutrition experts today believe the food we eat should contain __C______.
A. more meat than vegetables B. more vegetables than meatC. fruit, cereals and fish as well as meat and vegetablesD. as many different kinds of vegetables as possible
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