题目内容
（请给出正确答案）
Both the pound and the dollar______ weak after reports cut economic growth estimates.
A．put
B．kept
C．remained
D．continued
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更多“Both the pound and the dollar_…”相关的问题
A. Ezra Pound
B. T. S. Eliot
C. Robert Frost
D. Both A and B
Seated Exercise Series: Chair Aerobics
When most people think of exercise, they usually think of things like running, jogging, jumping rope, lifting heavy weights, and so on. And all of these weight-bearing exercises involve the bones and muscles working against gravity. If you have problems standing for long periods of time, Chair Aerobics is the exercise for you.
Chair Aerobics lets you exercise your body while sitting in a chair. Consider the following:
Chair aerobics is performed for about 20-30 minutes and consists of rhythmic movements.
It is a low-impact exercise with almost no potential for damage to joints and enables you to perform. your daily routine activities effectively.
It lets you move your arms and legs to music while taking the weight off your feet.
You don't need special clothes, shoes, or space.
No equipment other than a chair is required.
Like any other physical exercise, it can improve your muscle tone, flexibility, and posture.
Chair Aerobics for Everyone is a great exercise video for men and women of all ages.
Included in the training video: Upper Body Workout Lower Body Workout Abdominal Toning Cool-down
Newington Health & Wellness Co.
Newington Town Hall 131 Cedar St,
Newington, CT 06111
Phone: (860) 665-8500 / M-F 8:30 a.m.-4:30 p.m.
Total Health Magazine
Fall 2007
Which machine is your favorite？
People do not always burn the same number of calories on one exercise machine as on another.
A recent study was conducted on the number of calories expended by healthy men and women in their twenties while they exercised on four different machines. The intensity of their exercise was categorized as "fairly light" , "somewhat hard" , or "hard" and showed the following results:
Both men and women burned the most calories on the treadmill and the least on the stationary bicycles.
The stair climber and the rowing machine were in the middle for both men and women.
Whatever the equipment is, that men burned more calories than women did is the physiological fact that pound for pound, men have more muscle than women, and muscles burn more calories than fat does. In addition, it takes more calories to move a larger person and men are usually bigger than women.
Be sure to consult a trainer before starting any of these exercise programs as they involve impact pressure, which is often associated with physical injury.
What is NOT mentioned in the advertisement as a conventional form. of exercise？
A．Basketball
B．Jogging
C．Running
D．Weight lifting
听力原文：You have got change for a five pound note, haven't you？
(A) No, I haven't changed at all.
(B) Let me just check.
(C) In the bank on the other side of the street.
(28)
A．
B．
C．
A．Right
B．Wrong
C．Doesn't say
根据以下材料，回答题
New Understanding of Natural Silk"s Mysteries
Natural silk， as we all know， has a strength that manmade materials have long struggled to match. In a discovery that sounds more like an ancient Chinese proverb than a materials science breakthrough， MIT researchers have discovered that silk gets its strength from its weakness. Or，more specifically， its many weaknesses. Silk gets its extraordinary durability and ductility from an unusual arrangement of hydrogen bonds that are inherently very weak but that work together to create a strong， flexible structure.
Most materials- especially the ones we engineer for strength- get their toughness from brittleness. As such， natural silks like those produced by spiders have long fascinated both biologists and engineers because of their light weight， ductility and high strength （pound for pound， silk is stronger than steel and far less brittle）. But on its face， it doesn"t seem that silks should be as strong as they are; molecularly， they are held together by hydrogen bonds， which are far weaker than the covalent bonds found in other molecules.
To get a better understanding of how silk manages to produce such strength through such weak bonds， the MIT team created a set of computer models that allowed them to observe the way silk behaves at the atomic level. They found that the arrangement of the tiny silk nanocrystals is such that the hydrogen bonds are able to work cooperatively， reinforcing one another against extemal forces and failing slowly when they do fail， so as not so allow a sudden fracture to spread across a silk structure.
The result is natural silks that can stretch and bend while retaining a high degree of strength.
But while that"s all well and good for spiders， bees and the like， this understandingof silk geometry could lead to new materials that are stronger and more ductile than those we can currently manufacture. Our best and strongest materials are generally expensive and difficult to produce （requiring high temperature treatments or energy-intensive processes）.
By looking to silk as a model， researchers could potentially devise new manufacturing methods that rely on inexpensive materials and weak bonds to create less rigid， more forgiving materials that are nonetheless stronger than anything currently on offer. And if you thought you were going to get out of this materials science story without hearing about carbon nanotubes， think again. The MIT team is already in the lab looking into ways of synthesizing silk-like structures out of materials that are stronger than natural silk—— like carbon nanotubes. Super-silks are on the horizon.
MIT researchers carry out the study to illustrate an ancient Chinese proverb. 查看材料
A.Right
B.Wrong
C.Not mentioned
W: It always seems hard when you are just starting out.
Q: What does the woman mean？
(16)
A．The man should start running daily.
B．She also prefers to exercise in the afternoon.
C．It's important to warm up before exercising.
D．The man should continue his exercise program.
听力原文：M: I'd like a bottle of aspirin, please.
W: A large one or a small one？
M: A large one, please.
W: That's eighty-seven pence.
M: And a tube of toothpaste. A large one.
W: That's fifty-six pence.
M: Oh, yes. And a film for this camera.
W: That's one pound seventy-two.
M: Right. Here you are. Five pounds. Thank you very much.
W: Don't forget your change, sir.
How much is a large bottle of aspirin？
A．56 pence.
B．87 pence.
C．67 pence.
I couldn't believe my______when I saw the address and the name.
A．eye
B．eyes
C．my both eyes
As a rule, single men and women have shorter lives than married men and women. Studies show that those who have been widowed, especially men, have a longer life expectancy if they remarry soon. Both men and women seem to have a greater resistance to disease and death when their marriage is undamaged. According to a 1960 study, women who have borne three children have the lowest mortality rates. Those who have borne four or more have the highest. Childless women and those with only one child generally don't live as long as mother of two or three, according to University of Chicago sociologists Evenly M. Kitagawa and Philip M. Hauser.
It's impossible to say how much sleep is ideal. Some people thrive on five hours a night, others seem to require eight or nine. Scientists agree that consistency in sleeping pattern is more significant; it's better to get six hours' sleep every night than ten hours one night and three the next.
While it's true that very few people who enjoy a long life are fat, this does not mean that every pound you gain is going to shorten your life. In fact, an ongoing study in Framingham, Mass. , has showed that during at least 30 years of middle life, leanness was a higher factor for mortality than fatness! What is known is that weight extremes in either direction are definitely unhealthy. Weighing 20 percent more or less than you should weigh can, in certain cases, be a life shortener.
The benefits of regular exercise are indisputable. Men engaged in energetic and persistent physical labor have fewer heart attacks. But many researchers believe that exercise need not be very strong to keep you in shape. The first principle of any life-extension program, then, is to enjoy every moment of the life you have—whether it lasts one more year or a hundred. As the philosopher Jean Jacques Rousseau put it: "Teach him to live rather than to avoid death. Life is not breath but action, the use of our senses, mind, faculties, every part of ourselves which makes us conscious of our being. "
Which of the following is not beneficial to the lengthening of life？
A．You should keep a good sleep habit.
B．You should do physical exercise on a regular basis.
C．You should try and remain neither too lean nor too fat.
D．You should take part in a guided life-extension program.
