[单项选择]Left-handed persons suffer more frequently than do righthanded persons from certain immune disorders, such as allergies. Left-handers tend to have an advantage over the righthanded majority, however, on tasks controlled by the right hemisphere of the brain, and mathematical reasoning is strongly under the influence of the right hemisphere in most people.
If the information above is true, it best supports which of the following hypotheses
A. Most people who suffer from allergies or other such immune disorders are left-handed rather than right-handed.
B. Most left-handed mathematicians suffer from some kind of allergy.
C. There are proportionally more left-handers among people whose ability to reason mathematically is above average than there are among people with poor mathematical reasoning ability.
D. If a left-handed person suffers from an allergy, that person will probably be good at mathematics.
E. (E) There are proportionally more people who suffer from immune disorders such as allergies than there are people who are left-handed or people whose mathematical reasoning ability is unusually good.

[单项选择]People in cities（）to suffer from stress more than those in the countryside.
A. tend
B. intend
C. turn
D. incline

[单项选择]Conversation One
A. They blush more than women do.
B. They perform uncomfortably in front of adults.
C. They can’t suffer psychological stress.
D. They blush less frequently than adults do.

[单项选择]

Mycorrhizal fungi infect more plants than do any other fungi and are necessary for many plants to thrive, but they have escaped widespread investigation until recently for two reasons. First, the symbiotic association is so well-balanced that the roots of host plants show no damage even when densely infected. Second, the fungi cannot as yet be cultivated in the absence of a living root. Despite these difficulties, there has been important new work that suggests that this symbiotic association can be harnessed to achieve more economical use of costly super phosphate fertilizer and to permit better exploitation of cheaper. less soluble rock phosphate, Mycorrhizal benefits are not limited to improved phosphate uptake in host plants. In legumes, mycorrhzal inoculation has increased nitrogen fixation beyond levels achieved by adding phosphate fertilizer alone. Certain symbiotic associations also increase the host plant’s resistance to harmful root fungi. Whether this resistance
A. A description of a replicable experiment
B. A refutation of an earlier hypothesis
C. A summary report of new findings
D. A confirmation of earlier research

[单项选择]
Why do drinkers earn more than teetotalers according to this passage a. Because drinkers have better health. b. Because drinkers receive more money from social warefare. c. Because drinkers have wider social networks. d. Because drinkers are more hard-working.

[单项选择]A) More than 70 million. C) More than 2000 million.
B) More than 1000 million. D) More than 6000 million.

[填空题]

What do recent studies show No more than three drinks a day may significantly ______ of a heart attack.

[单项选择]
The United States Food and Drug Administration(美国食品药品管理局) has ordered companies to place strong new warnings on thirteen drugs that treat sleep disorders, It also ordered the makers of the sleeping pills to provide information for patients explaining how to safely use the drugs.
Last Wednesday, the FDA announced that some of these drugs can have unexpected and dangerous effects. These include the risk of life-threatening allergic (过敏性的) reactions. They also include rare incidents of strange behavior. These include people cooking food, eating and even driving while asleep. The patients later had no memory of doing these activities while asleep.
Last year, a member of the United States Congress said he had a sleep-driving incident. Patrick Kennedy, a representative from Rhode Island, crashed his car into a security barrier near the building where lawmakers meet. The accident happened in
A. Right
B. Wrong
C. Not mentioned