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  • 内蒙泳坛夺金走势图:2019年6月大学英语六级考试阅读理解模拟试题(3)

    六级考试网 鲤鱼小编 更新时间:2019-03-13

    以下是大学英语考试阅读理解模拟试题(3),大家可自行测试,一起来看看吧!

    英语六级阅读理解全真模拟题

    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.

    1.What is the author’s main purpose in the passage?

    A.To explain the specific functions of various hormones.

    B.To provide general information about hormones.

    C.To explain how the term “hormone” evolved.

    D.To report on experiments in endocrinology.

    2.The passage supports which of the following conclusions?

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

    B.Synthetic hormones can replace a person’s natural supply of hormones if necessary.

    C.The quantity of hormones produced and their effects on the body are related to a person’s age.

    D.The short child of tall parents very likely had a hormone deficiency early in life.

    3.It can be inferred from the passage that before the Bayliss and Starling experiments, most people believed that chemical integration occurred only___.

    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

    C.ductless glands

    D.intestinal glands.

    答案:BDCBA

     

     

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    2019年6月大学英语六级考试阅读理解模拟试题(1)

    2019年大学英语六级考试阅读理解高频词组(二)

    专题汇总

  • 热波十年,用潮流音乐迎接95、00后热波 音乐节 2019-06-18
  • 人民日报评论员:高扬凝心聚力的中国精神 2019-06-18
  • 苹果市值9370亿美元 在标普500成分股中占比为4% 2019-06-17
  • 习近平主持上海合作组织青岛峰会小范围会谈 2019-06-17
  • “燃情世界杯 狂欢过足瘾”河北人自己的足球盛宴来啦! 2019-06-15
  • 福利!我国最大内陆淡水湖博斯腾湖风光壁纸出炉 2019-06-11
  • 新华时评:美逆潮流而动,必将付出代价 2019-06-10
  • 险企偿付能力2017年“成绩单”:3家不达标 7家被关注 2019-06-10
  • 数百人吃发芽糙米 三个月收获健康 2019-06-06
  • 四川省宜宾五粮液集团有限公司获第十二届人民企业社会责任奖年度扶贫奖 2019-06-06
  • 內存市场反垄断调查:矛头指向美国企业 2019-06-03
  • 有骨气!外援被中超解约后拒绝回归:宁愿少赚2千万 2019-06-03
  • 端午话药浴:探秘藏东山谷里的藏药浴 2019-05-27
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  • 俄媒称,俄罗斯总统新闻秘书德米特里·佩斯科夫9日证实,普京和特朗普最近一次通话时讨论了把两人会晤地点设在奥地利首都维也纳的可能性。 2019-05-26