The researchers found that slim women fidget more than fat women, but there is no significant difference among men

A．the energy burned up by fat people when they fidget is more than that burned up by thin people when they fidget

B．some people's fidgeting burned up more than 800 calories, but some people's fidgeting burned up less than 100 calories

C．slim women fidget more than fat women but fat men fidget more than thin men

D．thin men fidget more than fat men

A．Slim women usually fidget less than fat women.

B．Men usually fidget more frequently than women.

C．Fidgeting helps people expend more energy.

D．Fidgeting is closely related to men's weight.

听力原文： Have you eaten too much over the holidays？ You should try fidgeting, or moving your hands or feet for a while. Those around you might not like it, but scratching and twitching is an important way of burning up calories.

American researchers have found that some people's squirming and wiggling equals several miles of jogging each day.

The scientists, based at the National Institute of Health's laboratory in Phoenix, Arizona, are studying why some people get fat and others stay slim.

In one study, 177 people each spent 24 hours in the institute's respiratory chamber—a room where the amount of energy people expend is measured by their oxygen and carbon dioxide levels. By the end of the day, some people had burned up 800 calories in toe-tapping, finger-drumming and other nervous habits. However, others had expended only 100 calories.

The researchers found that slim women fidget more than fat women, but there was net significant difference in men. Heavy people expend more energy when they fidget than do thin people.

(23)

A．Keeping moving hands and feet.

B．Jogging several miles.

C．Walking a long distance.

D．Taking deep breathes.

Researchers have found summer depression is more common in people living in Alaska.

A．Y

B．N

C．NG

A．earn less than their wives

B．are declined by white-collar women

C．refuse to marry white-collar women

D．have to remain single

Which of the following phenomena makes researchers puzzled？

A．Men's health is more closely related to their emotions.

B．Though more liable to illnesses, women still live longer.

C．Men show worse symptoms than women when they fall ill.

D．Quite a number of men die soon after their retirement.

According to the second paragraph, it can be found by researchers that______.

A．Only educated people suffer from brain shrinkage

B．The more the brain shrinks, the more abnormal people's cognition and memory become

C．People might loss no mentality even with brain shrinkage

D．No brain-tissue loss will be induced by indulgence in alcohol

听力原文： A British study of how diet affects the health of new mothers and their babies produced the surprise finding that vegetarian women are more likely to have girls, one of the report's authors said yesterday.

In what is thought to be the first study of its kind, researchers at Nottingham University in central England found significant differences in the sex of babies born to vegetarian and meat and fish-eating women. They were examining the health conditions in vegetarian and non-vegetarian mothers, looking at things like hemoglobin levels, which show how much iron the mother has in her blood, and birth weights.

Altogether 5,942 pregnant women were involved in the study when they were booked in Nottingham's City Hospital during 2001. According to the researchers, vegetarian mothers were defined as pregnant women who avoided meat and fish. Nearly five percent were vegetarian among them, a total of more than 250 women.

The birth ratio in Britain is that for every 106 boys born there are 100 girls, that's pretty constant. In their sample group of vegetarians there were 81.5 boys born for every 100 girls.

To further test their surprise findings, they increased the sample number to what scientists called a "statistically significant" level. The study was extended for a further six months so that the sex of more babies could be looked at. The results, covering around 150 more vegetarian women, were" just about exactly the same".

The study also found that vegetarian mothers were less likely to smoke during pregnancy -- 10 percent did so, compared with 20 percent of meat-eaters.

(36)

A．Vegetarian women are more likely to have girls.

B．Non-vegetarian women are more likely to have girls.

C．Vegetarian women are more likely to have boys.

D．Vegetarian women are more likely to smoke during pregnancy.