() 5. A terrible disease in Africa and it has caused a number of deaths.
A. took out B. pulled out C. picked out D. broke out
鴻圖圖書寒假作業(yè)假期作業(yè)吉林大學出版社系列答案科目：初中英語 來源： 題型：
In some Asian cultures, snow-white skin is considered a sign of beauty,and many women try whitening creams that can also 1 bad results.
Some of them cause skin problems,others can cause serious illness over time. And still others have mercury (水4艮) ， 2 is quite bad for body.
Now,Taiwanese researchers say that an ancient Chinese herb (香草) 3 in traditional medicine might reduce the production of melanin (黑色素) .
The scientists are 4 their findings on Tuesday at the year of meeting of the American Chemical Society.
The Chinese herb,which comes from a kind of bush,is 5 than whitening creams,the researchers say. It has two chemicals in it that are able to inhibit melanin.
6 melanin causes coloring of the skin,hair and eyes,inhibiting melanin is one way to whiten skin,said the lead author,Hui-Min Wang,a scientist at Kaohsiung Medical University in Taiwan.
Dr Wang and his partners 7 the chemicals on zebra fish embryos (胚胎). The test showed that the 8 made melanin production less in the fish by about 50% in four days,and the embryos turned white,not like zebra anymore.
However,just because the chemicals are 9 and man-planted doesn’t mean that they are safe enough for human use.
Although they are not bad for 10 when taking little,researchers will do more research.
() 1. A. carry B. fetch C. bring D. take
() 2. A. which B. what C. when D. where
() 3. A. use B. used C. using D. uses
() 4. A. repairing B. reviewing C. replying D. reporting
() 5. A. cheaper B. safer C. more important D. more useful
() 6. A. Since B. If C. For D. Although
() 7. A. examined B. checked C. matched D. tested
() 8. A. lightening creams B. herbs
C. chemicals D. bushes
() 9. A. natural B. traditional C. medical D. central
() 10. A. children B. women C. adults D. humans
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5. Mr. Grey never smiles and he is one of the (strict) teachers in our school.
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() 10. He had examples that he was successful in his study.
A. prove B. to prove C. achieve D. to achieve
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2. All the rules ( explain) clearly before the game starts. Please don't worry.
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() 15. — Would you mind taking the underground to the theatre tonight?
— . It will take less time than by car.
A. Certainly B. You’re welcome
C. You’d better not D. Of course not
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