Which of the following is NOT a research finding about "drinking with meals"?
A.It lowers cancer risk compared with drinking without food
B.It increases by 20 percent the risk of cancer in all the four sites
C.It may be a cause of cancer
D.It does not eliminate cancer risk at any of the four sites
第1题
Promising Results from Cancer Study
A new experimental vaccine (疫苗) has shown promising results in the fight against lung cancer.In a small Texas-based study, a vaccine developed by scientists at Baylor University Medical Centre inDallas, USA, cured lung cancer in some patients and slowed the progress of the disease in others.
' Researchers have reported encouraging findings from this small study. Forty-three patients suffer-ing from lung cancer were involved in these trials. Ten of these patients were in the early stages andthirty-three in the advanced stages of the disease. They were injected with the vaccine every two weeksfor three months, and were carefully monitored for three years. In three of the patients in the advancedstages of cancer, the disease disappeared and in the others, it did not spread for five to twenty-fourmonths. However, no great difference was seen in the patients in the early stages of the illness.
This new vaccine uses the patient's own immune system It is made specifically for each patient and is in-jected into the arm or leg. It stimulates (刺激) the body's immune system, which then recognizes that thecancer cells are harmful, and attacks and destroys them
The vaccine could be effective against other forms of cancer. It offers great hope for the treatmentof cancer in general, although further studies are needed before such treatment can be widely used.
The vaccine cured all the participants in the trial.
A.Right
B.Wrong
C.Not mentioned
第2题
She gets aggressive when she is drunk
A.worried
B.sleepy
C.anxious
D.offensive
第3题
He was tempted by the high salary offered by the company.
A.taught
B.kept
C.changed
D.attracted
第4题
Make sure the table is securely anchored
A.repaired
B.fixed
C.cleared
D.booked
第6题
57
A.reasonable
B.wonderful
C.impossible
D.necessary
第7题
??What does Stephen Schneider say about a heroin addict and methadone???
A.Methadone is an effective way to treat a hard heroin addict
B.Methadone is not a correct way to treat a heroin addict
C.Hospitalization together with methadone can work effectively with a heroin addict
D.Methadone and heroin are equally effective in treating a heroin addict
第8题
A Sunshade for the Planet
?? Evenwith the best will in the world,reducing our carbon emissions is not going toprevent global warming. It has become clear that even if we take the moststrong measures to control emissions, the uncertainties in our climate modelsstill leave open the possibility of extreme warming and rises in sea level. Atthe same time,resistance by governments and special interest groups makes itquite possible that the actions suggested by climate scientists might not beimplemented soon enough.??
?? Fortunately,if the worst comes to the worst,scientists still have a few tricks up their sleeves. For the most part theyhave strongly resisted discussing these options for fear of inviting a sense ofcom- placency that might thwart efforts to tackle the root of the problem.Until now, that is. A growing number of researchers are taking a fresh look atlarge-scale "geo-engineering" projects that might be used tocounteract global warming. "I use the analogy of methadone," saysStephen Schneider,a cli- mate researcher at StanfordUniversity in California who was among the first to drawattention to global warming. "If you have a heroin addict, the correcttreatment is hospitalization,and a long rehab. But if they absolutelyrefuse,methadone is better than heroin. "??
?? Basically the idea is to apply "sunscreen" to the wholeplanet. One astronomer has come up with a radical plan to cool Earth;launchtrillions of feather-light discs into space, where they would form. a vast cloudthat would block the sun's rays. It's controversial,but recent studies suggestthere are ways to deflect just enough of the sunlight reaching the Earth'ssurface to counteract the warming produced by the greenhouse effect. Globalclimate models show that blocking just l. 8 per cent of the incident energy inthe sun's rays would cancel out the warming effects produced by a doubling ofgreenhouse gases in the atmosphere. That could be crucial,because even the mostsevere emissions-control meas- ures being proposed would leave us with a doublingof carbon dioxide by the end of this century,and that would last for at least acentury more.??
??According to the first two paragraphs, theauthor thinks that _________?
A.strong measures have been taken by the government to prevent global warming
B.to reduce carbon emissions is all impossible mission
C.despite the difficulty, scientists have some options to prevent global warming
D.actions suggested by scientists will never be realized
第9题
??Which of the following is NOT mentioned in Paragraph 6???
A.An external camera checks that the car is going properly
B.The car will automatically keep to its lane
C.The seat belt will tighten when the driver is found drowsy
D.The technology of the alcohol odor sensor should be improved
第10题
We are restricted to a speed of 30 miles an hour in built-up areas
A.deprived
B.forbidden
C.required
D.limited
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