摘要:30.C 句意为:在新机器的武装下.那支搜索小分队走进了山洞.希望能找到埋藏的财宝.a search party与arm之间为被动关系.故用过去分词作状语.arm sb.with sth.武装.装备.

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  A cup of freshly ground(新磨的)coffee is what it takes to get some people full of energy in the morning.

  But, according to a study, it may be the aroma rather than the coffee itself that does the trick.

  Researchers believe that the aroma of roasted(烘培)coffee beans can soothe(舒缓)frayed(紧张的)nerves-and that it could be enough to reduce the effects of a poor night's sleep on the brain.

  They said that chemicals removed from coffee and pumped into the air may one day be used as a way of refreshing tired people.

  Scientists in Tsukuba, Japan, kept 16 laboratory rats awake for 24 hours, by keeping them in a cage filled with an inch of water, then exposed half of them to the smell of roasted coffee.

  After taking samples of the rats' brains, they found that the smell of coffee improved the activity of key genes that help cell survival in the body and reduce anxiety, New Scientist magazine reports.

  Professor Yoshinori Masuo, who led the study in Tsukuba, Japan, said that when people drink coffee to stay up all night, just the smell of the coffee could reduce some of the stress caused by sleeplessness.

  He added:“Is it better for US to smell coffee bean aroma than to drink coffee, or would any other food-related aroma produce similar effects? Further studies are needed.''

(1)

The underlined word “aroma” might mean ________.

[  ]

A.

味道

B.

气味

C.

颜色

D.

成分

(2)

According to the study, tired people had better ________ in the morning or evening.

[  ]

A.

drink coffee

B.

make a cup of tea

C.

smell coffee

D.

drink milk

(3)

The smell of coffee could do all the following EXCEPT ________.

[  ]

A.

reduce anxiety

B.

reduce stress

C.

cause sleeplessness

D.

cure tiredness

(4)

Further studies are needed to find out ________.

[  ]

A.

why coffee makes you tired

B.

how coffee reduces stress

C.

if the smell of coffee keeps you awake

D.

if other food-related aroma has similar effects

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