[单项选择] Scientists recently revealed an instinct in women untouched and unaffected by the age of technology. Glancing through glossy art books Lee Salk noticed that four times out of five Mary is depicted holding the infant Jesus against her left breast. The Madonna sparked off (bring into action) a series of experiments and observations to determine on which side women hold their babies and why. First he determined that modern mothers still tend to hold their baby on the left. Of 255 right- handed mothers, 83 % held the baby on the left. And out of 32 left-handed women, 78 % held the baby on the left. As a control, women were watched emerging from supermarkets carrying baby-sized packages; the bundles were held with no side preference. Then, dental patients were given a large rubber ball to hold during treatment. The majority clutched the ball to their left side, even when it interfered with the dentist’’s activities. This suggested that in times of tress objects are held against t
A. how different artists painted Mary and Jesus in different ways
B. the way mothers hold their babies
C. the way people hold objects in times of stress
D. what effect heartbeats have on premature babies

[单项选择] Scientists recently revealed an instinct in women untouched and unaffected by the age of technology. Glancing through glossy art books Lee Salk noticed that four times out of five Mary is depicted holding the infant Jesus against her left breast. The Madonna sparked off (bring into action) a series of experiments and observations to determine on which side women hold their babies and why. First he determined that modern mothers still tend to hold their baby on the left. Of 255 right- handed mothers, 83 % held the baby on the left. And out of 32 left-handed women, 78 % held the baby on the left. As a control, women were watched emerging from supermarkets carrying baby-sized packages; the bundles were held with no side preference. Then, dental patients were given a large rubber ball to hold during treatment. The majority clutched the ball to their left side, even when it interfered with the dentist’’s activities. This suggested that in times of tress objects are held against t
A. if the ball would help them overcome their stress
B. if the ball would interfere with the dentist’’s activities
C. if the ball would help the dentist’’s treatment on them
D. on which side they held it.

[单项选择]Since the early 1980s, scientists have revealed some 40 human genes involved in cancer. These genes are essential for normal growth, but can be subverted to cause a tumor.
Dr. Jorge Yunis of the University of Minnesota Medical School in Minneapolis has found that 70 percent of oncogenes, or cancer-causing genes, are located near inherited weak points on chromosomes(染色体). Varying from individual to individual, vulnerable to chemical carcinogens(致癌剂) ,X rays and other cancer-inducing agents.
"If a chromosome snaps apart in the immediate vicinity of an oncogene," says Yunis, "normal genetic control mechanisms could break down and the stage would be set for the formation of cancer." Younis hag shown that such a sequence occurs at the beginning of numerous leukemias (白血病), lymphomas (淋巴瘤) and some tumors of the lung, colon (结肠) and breast.
Yunis and Other investigators have found that petroleum-based products--notably pesticides and insecticides--damage specific sites on at l
A. harmful to the human body
B. necessary to the human body
C. the elements that form cancer
D. useless to the human body

[单项选择] Children start out as natural scientists, instinctively eager to investigate the world around them. Helping them enjoy science can be easy ― there is no need for a lot of scientific terms or expensive lab equipment. You only have to share your children’’s curiosity. Firstly, listen to their questions. I once visited a classroom of seven-year-olds to talk about science as a career. The children asked me "textbook questions" about schooling, salary and whether I liked my job. When I finished answering , we sat facing one another in silence. Finally I said, "Now that we’’ve finished your lists, do you have questions of your own about science After a long period of pause, a boy raised his hand, "Have you ever seen a grasshopper eat When I try eating leaves like that, I get a stomachache. Why " This caused a series of questions and discussions that lasted nearly two hours. Secondly, give them time to think. Studies over the past three decades have shown that, after aski
A. to encourage them by saying "That’’s right" or "Very good" frequently
B. to share with the children what they are curious about
C. to explain difficult scientific terms for them patiently
D. to offer their children good lab devices and equipments

[判断题]
Scientists do not understand why women should outlive men by five years.

[单项选择]Until recently, women in advertisements were one of three things—an apron, a glamorous dress or a frown. Although that is now changing, many women still feel angry enough to deface offending advertisements with stickers protesting, "This ad degrades women." Why does this sort of advertising exist How can advertisers and ad agencies produce, sometimes, after months of research, advertising that offends the consumer
The Advertising Standards Authority (the body which deals with complaints about print media) is carrying out a research into how women feel about the way they are portrayed in advertisements. Its conclusions are likely to be what the advertising industry already knows: although women are often irritated by the way they are seen in ads, few feel strongly enough to complain.
Women are not the only victims of poor and boring stereotypes—in many TV commercials men are seen either as useless, childish oafs who are unable to perform the simplest household tasks, or
A. change women’s opinions of themselves.
B. show any understanding of women’s feelings.
C. persuade the public to buy certain products.
D. meet the needs of the advertising industry.