The race to seek out civilizations around distant stars ________, as an international group discovered an Earth-like planet in a special zone.

A. cleared up　　　　 　 B. warmed up　　　 　C. lighted up　　 D. built up

 

B。

 

clear up意思是“整理；放晴”；warm up意思是“活躍起來(lái)”；light up意思是“照亮；點(diǎn)亮”；build up意思是“增進(jìn)；加強(qiáng)”。根據(jù)題意可知，B項(xiàng)正確，即由于一個(gè)類似地球的星球的發(fā)現(xiàn)，在其它星球上尋找生命的活動(dòng)變得活躍起來(lái)。

 

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From babies to body builders, we all have muscles. They grow, they bulge(鼓起), they stretch they stretch and sometimes they even painfully pull. But for all the work they do for us, we are still unable to crown one as "the strongest muscle."

       Instead, a few muscles could claim the title, depending on how strength is measured.

       If the title goes to the muscle that can exert(產(chǎn)生) the most force, the victor would be the soleus（小腿肚�。�, according to Gray's Anatomy（解剖學(xué)）. Without this muscle, we wouldn't be able to stand, walk, run or shake our bodies on the dance floor. If the soleus was not continuously pulling, we would always be falling over ourselves (although some of us tend to do that from time to time anyway).

       But perhaps the title should go to the muscle that exerts the most pressure. Pressure is different from force — pressure takes into account the area over which a force is exerted. The muscle that takes the prize for delivering the greatest amount of pressure is the masseter, or the jaw muscle, according to the book "Clinical Oral Science" (Reed Educational and Professional Publishing, 1998).

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       Others may argue the muscles used in childbirth are the most powerful.

       When it comes to versatility, perhaps the tongue is the strongest muscle. Its combination of elasticity（伸縮性） and forcefulness gives us the ability to speak, eat and kiss – all things very desirable on a first date. However dexterous（靈巧的） it may be though, its power does not match that of muscles such as the soleus.

       If slow and steady wins the race, the heart is certainly a contender for the title. When it contracts, the muscle pumps about 2 ounces (59 milliliters) of blood, and is constantly working over a lifetime. Beating about 40 million times a year, a person's heart will beat approximately 2.5 billion times by the time of their 70th birthday.

According the passage, the underlined word “contender” in the last paragraph is closet in meaning to “           ”.

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       A．What’s the strongest muscle in the human body?

       B．who is the strongest person in the world?

       C．What are the functions of different muscles?

       D．What are the standards of the strongest muscle?

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       B．a(chǎn) few muscles could be the winners, according to different measures

       C．the muscles used in childbirth are the most powerful

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       A．Another possible strongest muscle. B．the conclusion of the strongest muscle.

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Even before my father left us, my mother had to go back to work to support our family．Once I came out of the kitchen, complaining, "Mom, I can't peel potatoes．I have only one hand．"

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In the United States, when one becomes rich, he wants people to know it. And even if he does not become very rich, he wants people to think that he is. That is what "keeping up with the Joneses" is about. It is the story of someone who tried to look as rich as his neighbors.

　　The expression was first used in 1913 by a young American called Arthur Momand. He told this story about himself. He began earning $ 125 a week at the age of 23. That was a lot of money in those days. He got married and moved with his wife to a very wealthy neighborhood outside New York City.. When he saw that rich people rode horses, Momand went horseback riding every day. When he saw that rich people had servants, Momand and his wife also hired a servant and gave big parties for their new neighbors.

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　　People never seem to get tired of keeping up with the Joneses. And there are "Joneses" in every city of the world. But one must get tired of trying to keep up with the Joneses because no matter what one does, Mr. Jones always seems to be ahead.

1.Some people want to keep up with the Joneses because they ______.

A. want to be as rich as their neighbors

B. want others to know or to think that they are rich

C. don't want others to know they are rich

D. want to be happy

2. It can be inferred from the story that rich people like to ________.

A. live outside New York City

B. live in New York City

C. live in apartments

D. live with many neighbors

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