The new studies show that fewer than half of the 9th graders in many of the nation’s l

The European Union had approved a number of genetically

modified crops until late 1998. But growing public concern

over its supposed environmental and health risks led several 【M1】______

EU countries to demand a moratorium (暂时禁止) on imports

of any new GM produce. By late 1999 there were enough such

country to block any new approvals of GM produce. 【M2】______

Last year, America filed a complaint at the WTO about the

moratorium, arguing that it was an illegal trade barrier

because there was no scientific base for it. 【M3】______

As more studies have been completed on the effects

of GM crops, the greens' case for them has weakened. 【M4】______

Much evidence has emerged of health risks from eating 【M5】______

them. And, overall, the studies have shown that the

environmental effects on modified crops are, not always 【M6】______

as serious as the greens claim. Nevertheless, environmentalists

continue to find fault of such studies and argue that 【M7】______

they are inconclusive.

While Americans seem happy enough to consume food made

from GM crops, opinion polls continue to show that European

consumers dislike the idea. Europeans seem be taking the attitude 【M8】______

which, since there remains the slightest possibility of adverse 【M9】______

consequences and since it is clear how they, as consumers, benefit 【M10】______

from GM crops, they would rather not run the risk.

【M1】

reduce the chance of suffering a heart attack by eating less of the foods rich in cholesterol(胆固醇). These include such foods as meats, milk products and eggs. The Heart Association noted a number of studies which show that nations where people eat a lot of high cholesterol foods have a higher number of deaths from heart disease.

However, the new report disagrees. It was made by the Food and Nutrition Board of the United States National Academy of Sciences. The new report by a team of 15 scientists said there is no evidence to link cholesterol in food directly to heart disease. It noted seven major studies involving people whose diet was changed to include only foods low in cholesterol. The studies found only a very small reduction in the number of heart attacks and there was no reduction in the number of heart attack deaths.

Other studies have shown similar results. They found that a change to low cholesterol foods will have only a minor effect on the amount of cholesterol in a person's blood and only a minor effect on the number of deaths.

Medical scientists hope that two huge new studies may settle the cholesterol dispute. The tests are designed to learn if low cholesterol foods or anti-cholesterol drugs, or both, can reduce the amount of the substance in the blood and reduce the chance of a heart attack. The two new studies will be finished in the next year or two.

The new Academy of Sciences report also discussed other possible links between food and disease. The scientists, in general, they are deeply concerned about some of the recent advice given about food. They noted that a number of private groups, government agencies and several popular books have advised that people can prevent heart disease, cancer and other sicknesses by changing the kinds of foods they eat. The new report said there is often no good scientific evidence to support such advice. In fact, the scientists said such ideas often produce only false hopes or unnecessary fears.

According to the passage, people could reduce the chance of suffering heart attack by ______.

A．eating less foods with a lot of cholesterol

B．eating less of low cholesterol foods

C．eating a lot of high cholesterol foods

D．eating drugs

an objective method to assess teachers. Studies show that over time, test scores do not provide a【C1】______ means of separating good from bad instructors. Test scores are an【C2】______ indicator of quality because too many factors outside of the teachers control can influence student【C3】______ from year to year—or even from classroom to classroom during the same year. Often, more than half of those teachers【C4】______ as the poorest performers one year will be judged average or above average the next, and the results are【C5】______ as bad for teachers with【C6】______ classes during the same year. 【C7】______, theres a far more direct approach: measuring the amount of【C8】______ a teacher spends delivering relevant instruction—【C9】______, how much teaching a teacher actually gets done in a school day. This is hardly a new【C10】______. Thirty years ago two studies using this approach found that some teachers were able to deliver【C11】______ 14 more weeks a year of relevant instruction than their less efficient【C12】______. There was no【C13】______ to their success: it was obvious that the efficient teachers【C14】______ strictly to the curriculum, maintained stern discipline and【C15】______ non-instructional activities, like【C16】______ unessential classroom business when they【C17】______ focused on the curriculum. And both studies found that the teachers who【C18】______ more were also the teachers who【C19】______ students who performed well on【C20】______ tests.

【C1】

A．persistent

B．consistent

C．continuous

D．useful

In 1985, the Coca-cola company made the decision to change the formula of its leading soft drink. (1985年，可口可乐公司决定改变他们主要的软饮料的配方)The change was based on the findings of many market studies. These studies had shown that the general response to the new product was good. However, the change of the traditional Coca-cola by New Coke was rejected by the majority of drinkers. In fact, the company had to step back and restart production of the old formula of Coca-cola.

The most important reason why New Coke was rejected was the emotional relationship that existed between drinkers and the old soft drink formula. Drinking Coca-cola had become a tradition for many people over its 99 years of existence. The change made by the company was not only in Coke’s formula but also in the traditional values and memories that it represented to the drinkers. “We had taken away more than the product Coca-cola. We had taken away a little part of them and their past.” The drinkers rejected this “improvement”, because “they believed that Coke stood for traditional value...so they felt betrayed when the product changed completely overnight”.

Although a lot of research was done by Coca-cola company, it didn’t show the depth of drinkers’emotion for the product. The studies took many forms, but none of the tests was able to measure the degree of personal and emotional reactions caused by the disappearance of the old, traditional Coca-cola. The weakness of the research was that it was mainly quantitative in form. The result was only numbers that could not show the deep meaning the product had for many people. A more extensive study focusing on the qualitative aspects of the change would perhaps have been able to demonstrate the close relationship existing between drinkers and product.

1.Coca-cola company changed the formula in 1985 because __________.

A.it led the soft drink industry in the market

B.its market studies supported the change in the formula

C.it carried out market research for expansion

D.it simply felt the need to make the change

2.According to the passage, the drinkers rejected New Coke because of __________.

A.the late response to the market by Coca-cola company

B.the reproduction of Coca-cola’s old drink formula

C.a strong dislike by Coca-cola’s regular drinkers

D.the emotional relationship between the drinkers and the old soft drink

3.The product Coca-cola was believed to stand for __________.

A.traditional values and good memories

B.traditional customs and happy days

C.past honors and efficient management

D.top quality and wonderful taste

4.Which of the following statements is true？

A.Research by Coca-cola considered emotional factors.

B.Coca-cola did little research before they made the change.

C.Research by Coca-cola was quantitative rather than qualitative.

D.Research by Coca-cola was both quantitative and qualitative.

5.The author of the article clearly indicates that __________.

A.the weakness of the research could have been removed

B.Coca-cola should have measured the quantitative factors more carefully

C.Coca-cola should have done a more extensive qualitative study

D.A slower change of the product might have improved the sales of the company

Studies show that the things that contribute most to a sense of happiness cannot be bought, __________ a good family life, friendship and work satisfaction.

A) as for B) in view of C) in case of D) such as

ons in ways that interfere with enjoyment or that cause avoidance of social contacts altogether. It can vary from mild feelings to moderately uncomfortable in social circumstances to debilitating levels of anxiety that interfere in children with the process of socialization. Shyness is a personality trait that affects a child's temperament. Some infants are born shy and more sensitive. Some of them are quiet when new people enter a room. A shy baby might sink his head into his mother's shoulder, while a baby who is outgoing might smile or squeal with delight when someone new visits. Some children may feel shy in certain situations, like when meeting new people. Other children may learn to be shy because of experiences in school or at home. As of 2004, research tended to distinguish shyness from introversion. Introverts simply prefer solitary to social activities but do not fear social encounters as shy people do.

Evidence suggests a genetic component to shyness. Studies on the biological basis of shyness have shown that shyness in adults can often be traced as far back ns the age of three. A Harvard study of two-year olds showed that, even at that age, widely different personality types can be recognized: roughly 25 percent of children are bold, sociable, and spontaneous regardless of the novelty of the situation, while 20 percent are shy and restrained in new situations. The remaining 55 percent of newborns fall between the extremes of shyness and boldness. These two basic temperaments were also recognized in studies examining infants as young as four months old. As children grow, their shy temperament tends to display itself in predictable ways: for example, in play groups at age seven, shy children play by themselves, while more outgoing children seek to play together in groups. Evidence of a genetic predisposition for shyness is found in parents and grandparents of shy infants who report childhood shyness more often than relatives of children who are not shy. Further evidence for a congenital link to shyness is found In studies that show that identical twins (who have identical genes) are more likely to be shy than fraternal twins (who are no more alike than other siblings).

Research shows, however, that 25 percent of the time genetic predisposition to shyness does not develop into shyness. Some researchers believe that a shy temperament may require environmental triggers, such as insecurity of attachment in the form. of difficult relationships with parents, family conflict or chaos, frequent criticism, a dominating older sibling, or a stressful school environment.

Research has also identified a strong cultural link to shyness. In the United States, shyness surveys typically show that shyness is highest among Asian Americans and lowest among Jewish Americans. Using culturally sensitive adaptations of the Stanford Shyness Inventory, researchers in eight countries administered the inventory to groups of 18 to 21 year olds. Results showed that a large proportion of participants in all cultures reported experiencing shyness to a considerable degree--from 31 percent in Israel to 57 percent in Japan. in Mexico, Germany, India, and Canada, shyness levels were close to the U. S. figure of 40 percent. In all countries, shyness is perceived as more negative than positive, with 60 percent or more considering shyness to be a problem. There is no gender difference in reported shyness, but males tend to conceal their shyness because it is considered a feminine Wait in most countries. For example, in Mexico, males report shyness less often than females do.

When shyness is intense, it can often lead to social anxiety disorder or to avoidant personality disorder, both characterized by the avoidance of interpersonal contacts accompanied by significant fears of embarrass

A．discomfort in social situations

B．the preference for loneliness

C．being sensitive

D．fear social encounters

A.ordinarily

B.slightly

C.supply

D.fashionably

m have died.

But doctors say evidence also shows there is no reason for persons to become terrified by the disease. The AIDS virus is spread during sex with an infected partner, or by infected blood. But doctors say their studies show the disease is not spread through normal, close social activities.

A study by one research team was printed in the New England Journal of Medicine. The doctors studied one-hundred-one family members who lived with AIDS and lived in crowded conditions. The family members shared many personal goods with the patients. These included toothbrushes, drinking glasses, beds, towels and toilets.

Doctors said only one family member—a five-year-old girl—got the AIDS virus. They note, however, that the girl's mother had the disease. They believe the girl probably was born with the virus. No other family member in the study got the AIDS virus or showed any signs of the disease.

The head of the study, Gerald Friedland, said if the disease is not easily spread in crowded homes, it also will not spread easily in factories, offices, schools and other public places. (67) Doctor Friedland said the study also shows there is no reason to punish AIDS patients and to force them to live separately from other persons.

American health officials recently warned, however, that some health care workers should take special care. The report noted the AIDS virus is carried in blood and other body fluids. It said health care workers should put protective covers over their eyes and skin during medical operations, dental work, or other times when the patient may bleed.

(68)In the United States, most AIDS patients are homosexual people, people taking drugs, people who used infected needles, and persons who received infected blood. More recent studies show the AIDS virus also can be spread during heterosexual(异性的)relations. It can spread either from the man to the woman, or from the woman to the man.

Doctors say there is no reason for people to be frightened about AIDS because______.

A．it is not deadly

B．few people are infected with AIDS

C．the AIDS virus is not spread in everyday social activities

D．the AIDS virus is not spread during sex

Studies show that depression ______.

A．is more common today than in the past decades

B．was more common in the old generations

C．increased ten times in the days of our parents and grandparents

D．afflicts only young people

amily life, ______ friendship and work satisfaction.

A) as for B) in view of C) in case of D) such as

A.especially

B.originally

C.magically

D.visibly