We can see many examples in our life positive thinking changes a person completely.A. which B. that C. where D. while 题目和参考答案——青夏教育精英家教网—

题目内容

We can see many examples in our life _____ positive thinking changes a person completely.

A. which B. that C. where D. while

【解析】

试题分析：句意：我们可以看到我们的生活中很多积极思考完全改变一个人的例子。从句不缺主语或宾语，所以需要用关系副词而不用关系代词，所以用where，答案是C。

考点: 考查定语从句

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Green tea contains antioxidant chemicals (抗氧化化学物质) that may help stop the cell damage that can lead to disease. Researchers have been studying green tea' s effect on everything from cholesterol (胆固醇) to the risk of certain cancers, with mixed results so far.

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Specifically ,almost 13 percent of adults who drank less than a cup of green tea per day became functionally disabled, compared with just over 7 percent of people who drank at least five cups a day.

The study did not prove that green tea alone kept people agile as they grew older. Green tea lovers generally had healthier diets, including more fish, vegetables and fruit, as well as more education,lower smoking rates ,fewer heart attacks and strokes, and greater mental sharpness. They also tended to be more socially active and have more friends and family to rely on. But even with those factors accounted for, green tea itself was tied to a tower disability risk, the re-

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People who drank at least five cups a day were one-third less likely to develop disabilities than those who had less than a cup per day. Those people who averaged three or four cups a day had a 25 percent lower risk.

Although it' s not clear how green tea might offer a buffer (缓冲) against disabilities, lead researcher Yasutake Tomata did note that one recent study found green tea extracts (提取物) seem to increase leg muscle strength in older women.

While green tea and its extracts are considered safe in small amounts, they do contain caffeine and small amounts of vitamin K,which means it could affect drugs that prevent blood clotting (凝固).

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A. People of the same age.

B. Brothers.

C. Fathers.

D. People living in the same neighborhood.

2.What can be learned from the passage?

A. "Functional disability" is related to problems with daily activities or basic needs.

B. Those who often drink green tea can' t develop "functional disability".

C. Antioxidant chemicals can lead to disease.

D. People who drink at least five cups a day are not likely to become functionally disabled.

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B. How the study was proved.

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D. How to lower the disability risk.

4.What has the researcher Yasutake Tomata discovered?

A. Those who drank green tea can' t develop "functional disability".

B. Green tea alone kept people agile as they grew older.

C. Green tea extracts seem to increase leg muscle strength in older women.

D. How green tea might offer a buffer against disabilities.

5.From the passage we can infer that

A. vitamin K is contained in caffeine

B. vitamin K has influence on some drugs

C. vitamin K is bad for our health

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