Researchers claim that as little as five minutes exposure to common domestic electrical ap

What is some researchers' concern according to the passage？

A．Obesity has become a major threat to the public health.

B．Fat people take up too much space and social resources.

C．Obesity is not taken seriously by global health officials.

D．There is growing negative perception about fat people.

听力原文： Do you have a tough math test coming up？ Then listen to some classical piano music just before the test. You might end up with a higher score (30) . Researchers at a university in California conducted an experiment. They asked a group of college students to listen to some piano music by a famous 18 th century composer before taking a math test. They were surprised to find that the students' scores jumped 8 to 9 points. The music seems to excite nerve activities in the brain (31) ; similar to the activity that occurs when a person is figuring out a math problem. However, the scientists warn that before you get too excited about applying this method to your math test, you should remember that brain-exciting effects lust only 10 to 15 minutes (32) . Would rock music work as well as the piano music do？ No, the scientists say. In fact, the less complex music might even interfere with the brains' reasoning ability.

(31)

A．How to improve your reasoning ability.

B．Why classical music is popular with math students.

C．The difference between classical music and rock music.

D．The effects of music on the results of math tests.

听力原文： During a state of deep relaxation, several physiological changes take place in the body: the body's oxygen consumption is reduced; the heart beat decreases; muscle tension and sweating ease, and there is decreased sympathetic nervous system activity. (32) This restful state not only allows the body to repair and restore itself but it has a calming effect on the consciousness. How to achieve this state of relaxation, however, is a matter of opinion. (33) A recent report by Dr. David Holmes of the University of Kansas in the journal American Psychologist said that simple sitting in an armchair has just as many beneficial characteristics for the body as meditation does. Researchers of other relaxation techniques disagree . (34) These experts believe that more structured techniques, such as meditation, lead to a condition of deep relaxation. The debate goes on, but one thing appears to be clear: the relaxation response can be reached by a number of methods, and the methods themselves are not as important as getting there. One day, one method may work best; on another day, an alternative method may be more appropriate. (35) Once you are aware of all the methods, you can find the one that works best for you. Some of the relaxation techniques are meditation, self-analysis and progressive muscle relaxation. Although these techniques may not, in the end, produce more of a relaxation response than just sitting quietly in a chair, (35) they have the added benefit of structure and discipline, and for these reasons appear to be more effective for most individuals.

32. What will happen when a person is in a state of deep "relaxation"？

33.What did Dr. David Holmes say about "relaxation" in American Psychologist？

34.What do the opponents of Dr. David Holmes believe？

35.What does the speaker think of "relaxation techniques" such as meditation？

(7)

A．The body will take in more oxygen.

B．The heart will beat more frequently.

C．Muscles will become tense and the body will sweat easily.

D．The consciousness will become more or less calmed.

Consumers are being confused and misled by the hodgepodge (大杂烩) of environmental claims made by household products, according to a "green labeling" study published by Consumers International Friday.

Among the report's more outrageous (令人无容忍的) findings—a German fertilizer described itself as "earthworm friendly", a brand of flour said it was "nonpolluting" and a British toilet paper claimed to be "environmentally friendlier".

The study was written and researched by Britain's National Consumer Council (NCC) for lobby group Consumer International. It was funded by the German and Dutch governments and the European Commission.

"While many good and useful claims are being made, it is clear there is a long way to go in ensuring shoppers are adequately informed about the environmental impact of products they buy", said Consumers International director Anna Fielder.

The 10country study surveyed product packaging in Britain, Western Europe, Scandinavia and the United States. It found that products sold in Germany and the United Kingdom made the most environmental claims on average.

The report focused on claims made by specific products, such as detergents (洗涤剂), insect sprays and by some garden products. It did not test the claims, but compared them to labeling guidelines set by the International Standards Organization (ISO) in September, 1999.

Researchers documented claims of environmental friendliness made by about 2,000 products and found many too vague or too misleading to meet ISO standards.

"Many products had speciallydesigned labels to make them seem environmentally friendly, but in fact many of these symbols mean nothing", said report researcher Philip Page.

"Laundry detergents made the most number of claims with 158. Household cleaners were second with 145 separate claims, while paints were third on our list with 73. The high numbers show how confusing it must be for consumers to sort the true from the misleading." he said.

The ISO labeling standards ban vague or misleading claims on product packaging, because terms such as "environmentally friendly" and "nonpolluting" cannot be verified. "What we are now pushing for is to have multinational corporations meet the standards set by the ISO." said Page.

According to the passage, the NCC found it outrageous that ______.

A．all the products surveyed claim to meet ISO standards

B．the claims made by products axe often unclear or deceiving

C．consumers would believe many of the manufactures' claims

D．few products actually prove to be environment friendly

(1) Life can be tough for immigrants in America. As a Romanian bank clerk in Atlanta puts it, to find a good job “you have to be like a wolf in the forest – able to smell out the best meat.” And if you can’t find work, don’t expect the taxpayer to bail you out. Unlike in some European countries, it is extremely hard for an able-bodied immigrant to live off the state. A law passed in 1996 explicitly bars most immigrants, even those with legal status, from receiving almost any federal benefits. (2) That is one reason why America absorbs immigrants better than any other rich countries, according to a new study by the University of California. The researchers sought to measure the effect of immigration on the native-born in 20 rich countries, taking into account differences in skills between immigrants and natives, imperfect labor markets and the size of the welfare state in each country. (3) Their results offer ammunition for fans of more open borders. In 19 out of 20 countries, the authors calculated that shutting the doors entirely to foreign workers would make the native-born worse off. Never mind what it would do to the immigrants themselves, who benefit far more than anyone else from being allowed to cross borders to find work. (4) The study also suggests that most countries could handle more immigration than they currently allow. In America, a one-percentage point increase in the proportion of immigrants in the population made the native-born 0.05% better off. The opposite was true in some countries with generous or ill-designed welfare states, however. A one-point rise in immigration made the native-born slightly worse off in Austria, Belgium, Germany, Luxembourg, the Netherlands, Sweden and Switzerland. In Belgium, immigrants who lose jobs can receive almost two-thirds of their most recent wage in state benefits, which must make the hunt for a new job less urgent. (5) None of these effects was large, but the study undermines the claim that immigrants steal jobs from native or drag down their wages. Many immigrants take jobs that Americans do not want, the study finds. This “smooths” the labor market and ultimately creates more jobs for locals. Native-owned grocery stores do better business because there are immigrants to pick the fruit they sell. Indian computer scientists help American software firms expand. A previous study found that because immigrants typically earn less than locals with similar skills, they boost corporate profits, prompting companies to grow and hire more locals. 1. Increase in immigration in Austria fails to improve locals’ life mainly because of ________.

A、low wages for locals

B、imperfect labor markets

C、the design of the welfare system

D、inadequate skills of immigrants

They ______ his claim of innocence with eyewitness testimony.

A．refuted

B．overwhelmed

C．depressed

D．intimidated

【C4】

A．to claim

B．claimed

C．to incur

D．incurred

83. A) claim

B) conclusion

C) concept

D) explanation

Some psychologists claim that people ________ (出门在外时可能会感到孤独).

A.complaint

B.carrier

C.calm

D.claim