单选题An artificial sweetener, such as aspartame or sucralose, is said to contain no calories by the body’s not converting it into energy.A by the body’s not converting it into energyB by the body’s not convening them into energyC because the body does not c

题目
单选题
An artificial sweetener, such as aspartame or sucralose, is said to contain no calories by the body’s not converting it into energy.
A

by the body’s not converting it into energy

B

by the body’s not convening them into energy

C

because the body does not convert them into energy

D

due to the body’s not converting the energy in them

E

because the body does not convert it into energy


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更多“单选题An artificial sweetener, such as aspartame or sucralose, is said to contain no calories by the body’s not converting it into energy.A by the body’s not converting it into energyB by the body’s not convening them into energyC because the body does not c”相关问题
  • 第1题:

    What is a convenient and effective system of examining the body of an injury victim?

    A.Check the corresponding (left versus right) parts of the body.

    B.Watch the patient's eyes as you probe parts of the body.

    C.Look for discoloration of the patient's skin.

    D.Look for uncontrolled vibration or twitching of parts of the body.


    正确答案:A

  • 第2题:

    共用题干
    What Makes Me the Weight I Am?
    There's no easy answer to this question.Your genetic makeup,the physical traits that get passed down to you from your parents,plays a big part in determining your size and weight. ______(46)But if your parents are smaller than average,you may want to rethink that professional basketball career!
    The same goes for your body type.Have you ever heard someone say a person is"big boned"?It's a way of saying the person has a large frame,or skeleton.Big bones usually weigh more than small bones. ______(47) Like your height or body type,your genes have a lot to say about what your weight will be.But that's only part of the story.Being overweight can run in someone 's family , but it may not be because of their genes._______ (48 ) And even though some kids gain weight more easily than others , when they eat right and exercise , most kids can be a healthy and happy weight that's right for them.It's true the way you live can change the way you look.
    How much you weigh is a balance between the calories you eat and the calories you use. ______(49)If you spend your free time watching TV, your body won' t use as many calories as it would if you played basketball,skated,or went for a walk.If you are in balance,your weight will stay right for you as you grow.But if you eat more and exercise less,you may become overweight.______(50)

    ______(50)
    A:That's why it's possible for two kids with the same height but different weight,to both be the right weight.
    B:If you eat more calories than your body needs to use,you will gain too much weight.
    C:Poor eating and exercise habits also run in families and this may be the reason the members.of a family are overweight.
    D:However , many overweight people have difficulty reaching their healthy body weight.
    E:On the other hand, "you eat less and exercise more, you, may lose weight.
    F:If both your parents are tall,there is a good chance you'II be tall.

    答案:E
    解析:
    空格前后句中都出现了parents,因此判断空格处也谈及parents的可能性很大,因此首先注意F项。而且空格前句中的your size and weight呼应F项中的tall,而空格后句中的smal-ler也是在说身高的问题,因此判断F是答案。
    由此空前文内容可知,人的骨骼有大小之分,而大骨架通常比小骨架要重,因此才有可能出现这种现象,即身高相同、体重不同的两个孩子体重均正常。
    前一句讲,身体超重有可能在家族中代代相传,但又不一定是基因遗传所致,接下来的句子就应说明其原因,即不良的饮食与运动习惯也代代相传,而这可能正是家族成员普遍超重的原因。
    空格前后句中都出现了“calories(热量)”,因此判断空格处出现该词的可能性较大,因此首先重点注意B项。空格后面的句子结构是“if you… , your body…”,该结构也正好与B呼应,形成排比结构,因此判断B是答案。
    前一句表明,如果一个人吃得多而运动得少,就有可能超重。“反之亦然”,即“吃得少而运动得多,体重就会减轻”,这显然应该是下一句要表达的意思。

  • 第3题:

    According to the passage, cooling an organism__________.

    A.speeds up the body's metabolism
    B.slows disintegration of body tissues
    C.prevents damage to organs
    D.revives damaged organs

    答案:B
    解析:
    根据第二段“By slowing down the body’s metabolism,cooling delays the processes leadingto biological death.”以及第一段可知。生物死亡是指机体的变化导致了重要细胞和组织的瓦解,冷冻减慢了机体新陈代谢的过程,因此也就延缓了通往生物死亡的过程,即延缓了机体组织瓦解的过程,因此答案为B。

  • 第4题:

    共用题干
    First Self-contained Heart Implanted

    A patient on the brink of death has received the world's first self-contained artificial heart一a battery-
    powered device about the size of a softball that runs without the need for wires,tubes or hoses sticking out of
    the chest.
    Two surgeons from the University of Louisville implanted the titanium and plastic pump during a
    seven-hour operation at Jewish Hospital Monday.The hospital said the patient was"awake and responsive"
    Tuesday and resting comfortably.It refused to release personal details.
    The patient had been expected to die within a month without the operation,and doctors said they
    expected the artificial heart to extend the person's life by only a month.But the device is considered a major
    step toward improving the patient's quality of life.
    The new pump,called AbioCor,is also a technological leap from the mechanical hearts used in the
    1980s,which were attached by wires and tubes to bulky machinery outside the body. The most famous of
    those,the Jarvic-7,used air as a pumping device and was attached to an apparatus about the size of a washing
    machine.
    "I think it's potentially a major step forward in the artificial heart development,"said Dr. David Faxon,
    president of the American Heart Association.However,he said the dream of an implantable,permanent
    artificial heart is not yet a reality:"This is obviously an experimental device whose long-term success has to
    be demonstrated."Only about half of the 4,200 Americans on a waiting list for donor hearts received them
    last year,and most of the rest died.
    Some doctors ,including Robert Higgins, chairman of cardiology(心脏病学)at the Medical College of
    Virginia in Richmond,said artificial hearts are unlikely to replace donor hearts.
    "A donor heart in a good transplant can last 15 to 30 years,"he said."It's going to be hard to replace
    that with a machine."
    The AbioCor has a 2-pound pumping unit,and electronic controls that adjust the pumping speed based
    on the body's needs.It is powered by a small battery pack worn outside the body that transmits current
    through the skin.

    Some doctors doubt the possibility of donor hearts being replaced by artificial ones.
    A:Right
    B:Wrong
    C:Not mentioned

    答案:A
    解析:
    由文章第二段第一句“Two surgeons from the University of Louisville implanted the titanium and plastic pump during a seven-hour operation at Jewish Hospital Monday.",可知,被植入的人工 心脏是由钦和塑料合成的,故应选A。
    由文章第三段第一句中“doctors said they expected the artificial heart to extend theperson' s life by only a month”可知,医生只指望人工心脏能延长病人大约一个月的生命,而不 是几年,故应选B。
    第一段、第四段和第八段对独立心脏和机械心脏的构造作了介绍,从中可以看到两者 所用的动力、是否要电线、软管与体外连接以及体积大小都不相同,故此题应选B。
    在第五段, Faxon说“这可能是人工心脏发展中的一次重大飞跃”,还说“很显然,这只是 一个实验装置,其能否长期成功使用还有待证实”,并且在等待移植手术的4,200人中,仅有鱿 一半的人得到了移植。故应选B。
    第五段中,Faxon认为“可植入的永久性人工心脏这一梦想还不现实”,它仍处于实验阶 段,故应选B。
    第五段提到“去年等待别人捐献心脏的4,200个美国人中只有大约一半人接受到推 献”,也就是大约2,100人,故应选A。
    第六段提到“有些医生说人工心脏不太可能代替捐献的心脏”,第七段提到“移植得好, 一个捐献的心脏可存活15~30年,而这一点机器是很难代替的”,可见他们对人工心脏是持怀 疑态度的,故应选A。

  • 第5题:

    HTML文档结构由()组成。

    • A、<html>...</html>、<body>...</body>
    • B、<body>、</body>
    • C、<html>、</html>
    • D、<head>...</head>、<body>...</body>

    正确答案:D

  • 第6题:

    The law-making or the legislative body in the government is ()

    • A、the Supreme Court
    • B、the Congress
    • C、the Cabinet
    • D、the president’s committee

    正确答案:B

  • 第7题:

    单选题
    The error in the measurement of the altitude of a celestial body,caused by refraction,increases as the().
    A

    horizontal parallax decreases

    B

    observer's height above sea level increases

    C

    humidity of the atmosphere decreases

    D

    altitude of the body decreases


    正确答案: B
    解析: 暂无解析

  • 第8题:

    单选题
    An azimuth angle for a body is measured from the().
    A

    observer's meridian

    B

    Greenwich meridian

    C

    body's meridian

    D

    zenith distance


    正确答案: A
    解析: 暂无解析

  • 第9题:

    单选题
    What is a convenient and effective system of examining the body of an injury victim?()
    A

    Check the corresponding (left versus right) parts of the body

    B

    Watch the patient's eyes as you probe parts of the body

    C

    Look for discoloration of the patient's skin

    D

    Look for uncontrolled vibration or twitching of parts of the body


    正确答案: D
    解析: 暂无解析

  • 第10题:

    单选题
    A dog is read to attack when _____.
    A

    its eyes are diluted and rounded

    B

    its owner’s body leans backward

    C

    its owner’s shoulder squared

    D

    its owner’s shoulder slumped


    正确答案: B
    解析:
    文章第一段提到了人类学家McConnell的观点时,引用了他的话“A rounded eye with a dilated pupil is a sign of high arousal and aggression in a dog.”这说明当狗的眼睛光彩暗淡且瞪得很圆的时候,此时它将发起进攻。A正确。

  • 第11题:

    单选题
    Passage2         Questions 6 to 10 are based on the following passage.         Salt is as necessary to life as water. In many areas of Africa people once drank the urine(尿)of animals because they had no other source of salt. Without salt, human beings die.          The human body demands that the amount of salt in the blood always stay the same. When the body does not get enough salt, it protects itself by letting less salt leave the body in. urine and sweat. But it cannot reduce this output to zero. Some salt is always escaping. On a completely saltless diet, like that of some people in Africa, the body steadily loses small amounts of salt through the kidneys(肾) and sweat glands(腺). It then tries to adjust to this loss by speeding up its secretion(分泌) of water. (78) In this way, the body attempts to keep the amount of salt in the blood at the necessary level. The result is a slow drying up of body and, finally, death. The person dies of thirst.      In cases where there is little or no water to drink, the body tries to do the opposite thing.Again, it must keep the salt level in the blood constant. Because it has little water, it attempts to stop water from leaving the body and to increase its secretion of. salt. But, as with the escaping salt, it cannot be completely successful. Some water still leaves and the person eventually dies of thirst. In short, the body's normal needs for salt and for water are both parts of the same important need to keep the salt level in the blood constant.8 Which of the following statements is NOT the result of a lack of salt in the body?
    A

    The body secretes more water.

    B

    The body dries up.

    C

    The person dies of thirst.

    D

    The person gets fatter.


    正确答案: B
    解析:

  • 第12题:

    单选题
    The case of identical twins from Germany shows that _____.
    A

    environment can help determine people’s body shape

    B

    genes are the decisive factors for people’s body shape

    C

    identical twins are likely to enjoy different sports

    D

    identical twins may have different genes for different sports


    正确答案: D
    解析:
    第二段第二句,Rennie引用了德国一对单卵双胞胎的例子,其中一个是长跑运动员,另一个是力量型运动员。“虽然他们是双胞胎,但看上去完全不同。”

  • 第13题:

    The error in the measurement of the altitude of a celestial body,caused by refraction,increases as the ______.

    A.horizontal parallax decreases

    B.observer's height above sea level increases

    C.humidity of the atmosphere decreases

    D.altitude of the body decreases


    正确答案:D

  • 第14题:

    共用题干
    What Makes Me the Weight I Am?

    There's no easy answer to this question.Your genetic makeup,the physical traits that get passed down
    to you from your parents,plays a big part in determining your size and weight.
    __________(46)But if your parents are smaller than average,you may want to rethink that professional
    basketball career!
    The same goes for your body type.Have you ever heard someone say a person is"big boned"?It's a
    way of saying the person has a large frame,or skeleton.Big bones usually weigh more than small bones.
    ________ (47)
    Like your height or body type,your genes have a lot to say about what your weight will be.But that's
    only part of the story. Being overweight can run in someone's family,but it may not be because of their
    genes._________(48)And even though some kids gain weight more easily than others,when they eat right
    and exercise,most kids can be a healthy and happy weight that'5right for them.It's true一the way you live
    can change the way you look.
    How much you weigh is a balance between the calories you eat and the calories you use.
    _________(49)If you spend your free time watching TV,your body won't use as many calories as it
    would if you played basketball,skated,or went for a walk.If you are in balance,your weight will stay right
    for you as you grow.But if you eat more and exercise less,you may become overweight._________(50)

    __________(48)
    A:That's why it's possible for two kids with the same height but different weight,to both be the right weight.
    B:If you eat more calories than your body needs to use,you will gain too much weight.
    C:Poor eating and exerciSe habits also run in families and this may be the reason the members of a family areoverweight.
    D:However,many overweight people have difficulty reaching their healthy body weight.
    E:On the other hand,if you eat less and exercise more,you may lose weight.
    F:If both your parents are tall,there is a good chance you'11 be tall.

    答案:C
    解析:
    从文章内容我们注意到空格前后句中都出现了parents,因此判断空格处也谈及parents 的可能性很大,因此首先注意F。而且空格前句中的your size and weight呼应F中的tall,而空 格后句中的smaller也是在说身高的问题,因此判断F是答案。
    由此空前文内容可知,人的骨骼有大小之分,而大骨架通常比小骨架要重,因此才有可 能出现这种现象,即身高相同、体重不同的两个孩子体重均正常。也是讲述身高和体重的 关系。
    前一句讲,身体超重有可能在家族中代代相传,但又不一定是基因遗传所致,接下来的 句子就应说明其原因,即不良的饮食习惯与运动习惯也代代相传,而这可能正是家族成员普遍 超重的原因。
    我们注意到空格前后句中都出现了“calories(热量)",因此判断空格处出现该词的可能 性较大,因此首先重点注意B,空格后面的句子结构是"if you..., your body...",该结构也正好 与B呼应,形成排比结构,因此判断B是答案。
    前一句表明,如果一个人吃得多而运动得少,就有可能超重。“反之亦然”,即“吃得少 而运动得多,体重就会减轻”,这显然应该是下一句所表达的意思。第6部分:完形填空

  • 第15题:

    共用题干
    First Self-contained Heart Implanted

    A patient on the brink of death has received the world's first self-contained artificial heart一a battery-
    powered device about the size of a softball that runs without the need for wires,tubes or hoses sticking out of
    the chest.
    Two surgeons from the University of Louisville implanted the titanium and plastic pump during a
    seven-hour operation at Jewish Hospital Monday.The hospital said the patient was"awake and responsive"
    Tuesday and resting comfortably.It refused to release personal details.
    The patient had been expected to die within a month without the operation,and doctors said they
    expected the artificial heart to extend the person's life by only a month.But the device is considered a major
    step toward improving the patient's quality of life.
    The new pump,called AbioCor,is also a technological leap from the mechanical hearts used in the
    1980s,which were attached by wires and tubes to bulky machinery outside the body. The most famous of
    those,the Jarvic-7,used air as a pumping device and was attached to an apparatus about the size of a washing
    machine.
    "I think it's potentially a major step forward in the artificial heart development,"said Dr. David Faxon,
    president of the American Heart Association.However,he said the dream of an implantable,permanent
    artificial heart is not yet a reality:"This is obviously an experimental device whose long-term success has to
    be demonstrated."Only about half of the 4,200 Americans on a waiting list for donor hearts received them
    last year,and most of the rest died.
    Some doctors ,including Robert Higgins, chairman of cardiology(心脏病学)at the Medical College of
    Virginia in Richmond,said artificial hearts are unlikely to replace donor hearts.
    "A donor heart in a good transplant can last 15 to 30 years,"he said."It's going to be hard to replace
    that with a machine."
    The AbioCor has a 2-pound pumping unit,and electronic controls that adjust the pumping speed based
    on the body's needs.It is powered by a small battery pack worn outside the body that transmits current
    through the skin.

    The patient's life was expected to last several years longer by implanting the artificial heart.
    A:Right
    B:Wrong
    C:Not mentioned

    答案:B
    解析:
    由文章第二段第一句“Two surgeons from the University of Louisville implanted the titanium and plastic pump during a seven-hour operation at Jewish Hospital Monday.",可知,被植入的人工 心脏是由钦和塑料合成的,故应选A。
    由文章第三段第一句中“doctors said they expected the artificial heart to extend theperson' s life by only a month”可知,医生只指望人工心脏能延长病人大约一个月的生命,而不 是几年,故应选B。
    第一段、第四段和第八段对独立心脏和机械心脏的构造作了介绍,从中可以看到两者 所用的动力、是否要电线、软管与体外连接以及体积大小都不相同,故此题应选B。
    在第五段, Faxon说“这可能是人工心脏发展中的一次重大飞跃”,还说“很显然,这只是 一个实验装置,其能否长期成功使用还有待证实”,并且在等待移植手术的4,200人中,仅有鱿 一半的人得到了移植。故应选B。
    第五段中,Faxon认为“可植入的永久性人工心脏这一梦想还不现实”,它仍处于实验阶 段,故应选B。
    第五段提到“去年等待别人捐献心脏的4,200个美国人中只有大约一半人接受到推 献”,也就是大约2,100人,故应选A。
    第六段提到“有些医生说人工心脏不太可能代替捐献的心脏”,第七段提到“移植得好, 一个捐献的心脏可存活15~30年,而这一点机器是很难代替的”,可见他们对人工心脏是持怀 疑态度的,故应选A。

  • 第16题:

    The park is to a city__________the lung is to man′s body.

    A.as
    B.that
    C.which
    D.what

    答案:D
    解析:
    考情点拨:本题考查表语从句。应试指导:句意:公园对于城市就像肺对于人体一样。what引导表语从句,在从句中作表语一本句用的是一个固定结构:A is to B what C is to D,意思是“A对于B就像C对于D一样”。

  • 第17题:

    下列哪个选项的CSS语法是正确的()

    • A、body:color=black
    • B、{body:color=black(body}
    • C、body{color:black}
    • D、{body;color:black}

    正确答案:C

  • 第18题:

    单选题
    A celestial body’s complete orbit around another body is().
    A

    a rotation

    B

    a revolution

    C

    space motion

    D

    nutation


    正确答案: A
    解析: 暂无解析

  • 第19题:

    单选题
    Passage2         Questions 6 to 10 are based on the following passage.         Salt is as necessary to life as water. In many areas of Africa people once drank the urine(尿)of animals because they had no other source of salt. Without salt, human beings die.          The human body demands that the amount of salt in the blood always stay the same. When the body does not get enough salt, it protects itself by letting less salt leave the body in. urine and sweat. But it cannot reduce this output to zero. Some salt is always escaping. On a completely saltless diet, like that of some people in Africa, the body steadily loses small amounts of salt through the kidneys(肾) and sweat glands(腺). It then tries to adjust to this loss by speeding up its secretion(分泌) of water. (78) In this way, the body attempts to keep the amount of salt in the blood at the necessary level. The result is a slow drying up of body and, finally, death. The person dies of thirst.      In cases where there is little or no water to drink, the body tries to do the opposite thing.Again, it must keep the salt level in the blood constant. Because it has little water, it attempts to stop water from leaving the body and to increase its secretion of. salt. But, as with the escaping salt, it cannot be completely successful. Some water still leaves and the person eventually dies of thirst. In short, the body's normal needs for salt and for water are both parts of the same important need to keep the salt level in the blood constant.7 In order to adjust to the loss of salt, the body______.
    A

    loses some blood

    B

    speeds up its secretion of water

    C

    speeds up its secretion of salt

    D

    is drying up slowly


    正确答案: D
    解析:

  • 第20题:

    单选题
    The “singer” treats the patient by ______.
    A

    rubbing the patient’s body with sand from a sand painting figure

    B

    destroying the sand painting figure of a supernatural being

    C

    transferring his supernatural power to the patient

    D

    applying a magic substance to the patient’s body


    正确答案: D
    解析:
    细节题。根据第二段第四句话后半部分“….the ‘singer’ will rub the sick or injured parts of the patient’s body with sand from a specific figure in the sand painting”与A项一致。

  • 第21题:

    单选题
    HTML文档结构由()组成。
    A

    <html>...</html>、<body>...</body>

    B

    <body>、</body>

    C

    <html>、</html>

    D

    <head>...</head>、<body>...</body>


    正确答案: C
    解析: 暂无解析

  • 第22题:

    单选题
    The law-making or the legislative body in the government is ()
    A

    the Supreme Court

    B

    the Congress

    C

    the Cabinet

    D

    the president’s committee


    正确答案: B
    解析: 暂无解析

  • 第23题:

    单选题
    Planetary aberration is due,in part,to().
    A

    refraction of light as it enters the Earth's atmosphere

    B

    rotation of the Earth on it's axis

    C

    the body's orbital motion during the time required for its light to reach Earth

    D

    a false horizon


    正确答案: A
    解析: 暂无解析