感冒了喝鸡汤有效吗?

                                                                                

We all know the grandmotherly wisdom of serving chicken soup to someone with a cold, but does this particular meal really have the same effect as the medicine? Could the chicken soup save people a trip to the local hospital?
You won't find studies in humans that prove chicken soup can fight a cold, but there's enough evidence to make it worth trying. One study published in the medical journal Chest suggested that chicken soup?might have anti-inflammatory(消炎的) effects, which could possibly cure symptoms of upper respiratory tract infections. Researchers studied the movement of neutrophils -- a type of white blood cell -- when combined with soup. They found that the movement of neutrophils was reduced in the presence of soup, suggesting a possible anti-inflammatory effect that could at least reduce cold symptoms. 
"There are substances in chicken soup that could affect cells in the body, that could possibly have medicinal effects, but whether they are good or bad for you, we didn't test," said study author Dr. Stephen Rennard, Larson professor of medicine at the University of Nebraska Medical Center in Omaha. Because the study was done in a laboratory and not in humans, Rennard adds that it remains to be seen whether one would even absorb the substances that appeared to have beneficial effects in the lab. The researchers did not actually separate specific substances in soup that might be beneficial, "nor did we show what it would do in a living person, let alone a living person with a cold," he added.
"Chicken soup might be useful ... but a lot more research is required," Rennard said. "There is some possibility that there is a medicinal basis to it ... but 'some', 'suggests' and 'possible' are the key words."

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1.How did people know chicken soup could help with a cold?

A They had enough scientific evidence.

B They knew that from old experience.

C They were fond of the special soup.

D They learned it from the medical journal.

解析：选B。细节理解题。根据文章第一段第一句的We all know the grandmotherly wisdom of serving chicken soup to someone with a cold可以得知，给感冒的人喝鸡汤是一种祖母般的智慧。故选B。

2.How did the chicken soup fight a cold?

A It made neutrophils much less active.

B It was not anti-inflammatory.

C It produced a type of white blood cell.

D It made cold symptoms worse.

解析：选A。细节理解题。根据文章第二段最后一句的They found that the movement of neutrophils was reduced in the presence of soup可以得知鸡汤能够抑制那种白细胞的运动，也就是让neutrophils不活跃。故选A。

3.What wasn’t Dr. Stephen Rennard sure of?

A Whether the substances in chicken soup affect cells.

B Whether the substances in chicken soup were beneficial for people.

C Whether the study was done in a laboratory.

D Whether they could separate specific substances in soup.

解析：选B。细节理解题。根据第三段第一句的but whether they are good or bad for you, we didn't test可以得知研究人员没能确切弄明白鸡汤中的物质是否有用。故选B。

4.Why did Rennard use “possible” as the key word?

A He never caught a bad cold.

B He didn’t like chicken soup.

C He didn’t know medicinal basis.

D He thought more research was needed.

解析：选D。推理判断题。根据文章最后一段第一句的Chicken soup might be useful ... but a lot more research is required可以得知他需要更多的研究来支持他的结论，因此他现在用“可能的（possible）”作关键词。故选D。