One could neither trifle with a terror of this kind, nor compromise with it.

A.belittle B.exaggerate C.ponder D.eliminate

In American universities, classes are often arranged in more flexible （ ）and many jobs on campus are reserved for students.

A.scales B.ranks C.grades D.patterns

ve="" put="" them="" in="" one="" machine.”And it's not just for gym users. The body fat scanner could be used to study fat deposition as children develop, while patients recover from injury, or during pregnancy. And since it uses radio waves rather than X-rays, Tapp’s device is safe to use repeatedly.Body shape is known to be a risk indicator for heart disease and diabetes. So accurately quantifying fat distribution could help doctors suggest preventive measures to patients before problems arise. At the moment, doctors estimate fat content from knowing body volume and water content. To a good approximation ,says Tapp, anything that isn’t fat is water. The amount of water in the body is often measured by giving the subject a drink of water that contains a radioactive tracer. The level of tracer in the patient's urine after three hours reveals the total water volume.To find out a body's volume, subjects are weighed while totally submerged in water, and this is subtracted from their normal weight to give the weight of water displaced, and hence the subject, s volume. But it is scarcely practical for seriously ill people.There are other ways to directly measure body fat, such as passing a minuscule current between the wrists and feet. The overall fat content can then be estimated from the body’s resistance. But this method doesn’t take body shape into account——so a subject with particularly skinny legs might register a higher fat content than the true value. That's because skinny legs—with a lower cross-sectional area—will present higher resistance to current. So the machine thinks the water content of the body is lower—rating the subject as fatter. Also, the system can only give an overall measurement of fat.Tapp’s method uses similar calculations, but is more sophisticated because it tells you where you are piling on the pounds.1.The new machine is designed （ ）.2.The beauty of the device, according to Tapp, is that （ ）.3.Which of the following, according to the passage, does the machine have the potential to spare?4.In comparison with the techniques mentioned in the passage, the body fat scanner （ ）.5.For scanning, all the subject has to do is （ ）.'>

Get ready for a new kind of machine at your local gym: one that doesn’t involve huffing and puffing as you burn off calories. Instead, all you have to do is stand still for 30 seconds while the machine measures your body fat. It could then tell you exactly where you could do with losing a few pounds and even advise you on exercises for your problem areas. If the body fat scanner turns out to be accurate enough, its makers hope it could one day help doctors spot disease.The scanner works by simultaneously building up an accurate 3D image of the body, while measuring the body’s effect on an electromagnetic field. Combining the two measurements allows the researchers to work out the distribution of fat and water within. Neither method is new on its own, says Henri Tapp, at the Institute of Food Research in Norwich in the UK. “The smart thing is that we've put them in one machine.”And it's not just for gym users. The body fat scanner could be used to study fat deposition as children develop, while patients recover from injury, or during pregnancy. And since it uses radio waves rather than X-rays, Tapp’s device is safe to use repeatedly.Body shape is known to be a risk indicator for heart disease and diabetes. So accurately quantifying fat distribution could help doctors suggest preventive measures to patients before problems arise. At the moment, doctors estimate fat content from knowing body volume and water content. To a good approximation ,says Tapp, anything that isn’t fat is water. The amount of water in the body is often measured by giving the subject a drink of water that contains a radioactive tracer. The level of tracer in the patient's urine after three hours reveals the total water volume.To find out a body's volume, subjects are weighed while totally submerged in water, and this is subtracted from their normal weight to give the weight of water displaced, and hen

s="" yet="" another="" reason="" to="" lose="" weight.="" heavier="" people="" are="" more="" likely="" be="" killed="" or="" seriously="" injured="" in="" car="" accidents="" than="" lighter="" people.That could mean car designers will have to build in new safety features to compensate for the extra hazards facing overweight passengers. In the U. S. , car manufacturers have already had to redesign air bags so they inflate to lower pressures making them less of a danger to smaller women and children. But no one yet knows what it is that puts overweight passengers at extra risk.A study carried out in Seattle, Washington, looked at more than 26 000 people who had been involved in car crashes, and found that heavier people were at far more risk. People weighing between 100 and 119 kilograms are almost two-and-a-half times as likely to die in a crash as people weighing less than 60 kilograms.And importantly, the same trend held up when the researchers looked at body mass index （BMI）—a measure that takes height as well as weight into account. Someone 1.8 meters tall weighing 126 kilograms would have a BMI of 39, but so would a person 1.5 meters tall weighing 88 kilograms. People are said to be obese if their BMI is 30 or over.The study found that people with a BMI of 35 to 39 are over twice as likely to die in a crash compared with people with BMIs of about 20. It’s not just total weight, but obesity itself that’s dangerous.While they do not yet know why this is the case, the evidence is worth pursuing, says Charles Mock, a surgeon and epidemiologist at the Harborview Injury Prevention and Research Center in Seattle, who led the research team. He thinks one answer may be for safety authorities to use heavier crash-test dummies when certifying cars as safe to drive.Crash tests normally use dummies that represent standard-sized males weighing about 78 kilograms. Recently, smaller crash-test dummies have also been used to represent children inside crashing cars. But larger and heavier dummies aren't used, the U. S. National Highway Traffic Safety Administration in Washington DC told New Scientist.The reasons for the higher injury and death rates are far from clear. Mock speculates that car interiors might not be suitably designed for heavy people. Or obese people, with health problems such as high blood pressure or diabetes, could be finding it tougher to recover from injury.1.When they redesigned air bags to hold less pressure, the American car manufacturers （ ）.2.When they categorized the obese people, the researchers （ ）.3.To address the problem, Mock （ ）.4.While exploring the reason for the higher injury and death rates, Mock would most probably say that （ ）.5.Which of the following questions is closely related to the passage?'>

Here's yet another reason to lose weight. Heavier people are more likely to be killed or seriously injured in car accidents than lighter people.That could mean car designers will have to build in new safety features to compensate for the extra hazards facing overweight passengers. In the U. S. , car manufacturers have already had to redesign air bags so they inflate to lower pressures making them less of a danger to smaller women and children. But no one yet knows what it is that puts overweight passengers at extra risk.A study carried out in Seattle, Washington, looked at more than 26 000 people who had been involved in car crashes, and found that heavier people were at far more risk. People weighing between 100 and 119 kilograms are almost two-and-a-half times as likely to die in a crash as people weighing less than 60 kilograms.And importantly, the same trend held up when the researchers looked at body mass index （BMI）—a measure that takes height as well as weight into account. Someone 1.8 meters tall weighing 126 kilograms would have a BMI of 39, but so would a person 1.5 meters tall weighing 88 kilograms. People are said to be obese if their BMI is 30 or over.The study found that people with a BMI of 35 to 39 are over twice as likely to die in a crash compared with people with BMIs of about

At last, she （ ）some reasons for her strange behavior.

A.abolished B.admonished C.abstained D.adduced

Most broadcasters maintain that TV has been unfairly criticized and argue that the power of the medium is （ ）.

A.granted B.implied C.exaggerated D.remedied