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Whiledoingcalculationfortheproject,thedesigners____anewsolutiontoageologicalproblem.

更新时间:2024-03-29 14:15:50 A、fellinto
B、stumbledupon
C、setout
D、discovered
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正确答案:

B

答案解析:

【参考译文】 在对工程进行计算时,设计人员碰巧找到了解决地质问题的方法。

【试题分析】 本题是一道词义辨析题。

【详细解答】 “fall into”含义为“被卷入……”;“stumble upon”含义为“偶然找到,发现”;“set out”含义为“启程,出发”;“discover”含义为“发现,发觉”。从四个选项看,含有“偶然”含义的“stumble upon”最适合本句话。

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翻译训练:

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翻译:

As the source of aluminum is almost inexhaustible, we can expect that more and more uses will be found for this versatile metal. (Passage Two)

Without regular supplies of some hormones our capacity to behave would be seriously impaired; without others we would soon die. Tiny amounts of some hormones can modify moods and actions, our inclination to eat or drink, our aggressiveness or submissiveness, and our reproductive and parental behavior. And hormones do more than influence adult behavior; early in life they help to determine the development of bodily form and may even determine an individual’s behavioral capacities. Later in life the changing outputs of some endocrine glands and the body’s changing sensitivity to some hormones are essential aspects of the phenomena of aging.

Communication within the body and the consequent integration of behavior were considered the exclusive province of the nervous system up to the beginning of the present century. The emergence of endocrinology as a separate discipline can probably be traced to the experiments of Bayliss and Starling on the hormone secretion. This substance is secreted from cells in the intestinal walls when food enters the stomach; it travels through the bloodstream and stimulates the pancreas to liberate pancreatic juice, which aids in digestion. By showing that special cells secret chemical agents that are conveyed by the bloodstream and regulate distant target organs or tissues. Bayliss and starling demonstrated that chemical integration could occur without participation of the nervous system.

The term “hormone” was first used with reference to secretion. Starling derived the term from the Greek hormone, meaning “to excite or set in motion. The term “endocrine” was introduced shortly thereafter “Endocrine” is used to refer to glands that secret products into the bloodstream. The term “endocrine” contrasts with “exocrine”, which is applied to glands that secret their products though ducts to the site of action. Examples of exocrine glands are the tear glands, the sweat glands, and the pancreas, which secrets pancreatic juice through a duct into the intestine. Exocrine glands are also called duct glands, while endocrine glands are called ductless.

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A.The human body requires large amounts of most hormones.

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A.during sleep.

B.in the endocrine glands.

C.under control of the nervous system.

D.during strenuous exercise.

4.The word “liberate” could best be replaced by which of the following?

A.Emancipate B.Discharge C.Surrender D.Save

5.According to the passage another term for exocrine glands is___.

A.duct glands

B.endocrine glands

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D.intestinal glands.