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A cargo hold has been determined to have a relative humidity of 80% and a dry bulb temperature of 80 ℃ and a dry bulb temperature of 85℃.When the hold is sealed and the dry bulb temperature decreases, the relative humidity in the space will （）
A . decrease
B . increase
C . decrease to zero
D . remain unchanged
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基础体温(basal body temperature，BBT)
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Heaven has its seasons, Earth has its resources, man has his culture.
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What is the basic pattern of the sentence describing Alexander: “With his handsome face, his fiery glance, his strong body, his purple and gold cloak, and his air of destiny, he moved through the parting crowd toward the Dog’s kennel.”?
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16. A. He’s got his leg broken. C. He has caught cold.B. He’s got a headache. D. He’s got a fever.
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Obesity is a medical condition in which excess body fat has accumulated to exceed 25% of the standard body weight.
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Obesity is a medical condition in which excess body fat has accumulated to exceed ( ) of the standard body weight.
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24. James says that Peter Jones has producedA. his reports late.B. only one report.C. very short reports.
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The temperature of the world in the past ten years has dropped a little______.
A．because wind and rain changed the weather
B．the drop in the temperature would have effects on wind and rain
C．because wind and rain did not change the weather
D．the drop in the temperature would not have effects on wind and rain
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（In) warm-blooded animals, their body temperature, regardless of the temperature of the an
(In) warm-blooded animals, their body temperature, regardless of the temperature of the animals' (surroundings), (are) maintained within narrow (limits).
A．In
B．surroundings
C．are
D．limits
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So, in the evening when the body temperature is beginning to fall, there is a natural ten______ to fall asleep and in the morning, when the temperature begins to rise rapidly, we are most likely to wake up.
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听力原文：A world-champion body builder has no more muscles than does a 90-pound weakling.
听力原文： A world-champion body builder has no more muscles than does a 90-pound weakling. So what makes him so strong？ What other qualities does be need？
Muscles are made of thousands of stringy fibers—a number that is fixed during childhood—which contract when doing work. Strength does not depend on the number of fibers but on the function of their thickness and how many of them contract simultaneously.
Exercise actually damages the muscles. During the recovery stage, the muscle fibers increase in size. Exercise also trains more muscle fibers to work at one time. If a muscle is weak or untrained, for example, only about 10 percent of its fibers will contract, whereas up to 90 percent of the fibers in a weight lifter's bulky biceps will contract.
Aside from strength, two other ingredients go into making an athlete: fitness and endurance. Fitness is related to the condition of the heart. During exercises, there is an increase in the amount of blood returning to the heart from the muscles. A typical volume for a runner at rest is about 5 quarts a minutes, compared with 30 quarts during a vigorous trial. This greater volume means more work for the heart a muscular balloon that expands and contracts to take in blood and squeeze it out. Like any other muscle, the heart enlarges and gets stronger with routine exercise.
Endurance, or the length of time muscles can work, depends in part on how much fuel—in this case sugar—the muscles can store. A muscle that is continually exercised until it is exhausted of sugar tends to store more when it refuels at the next meal. And more sugar can translate into greater endurance the next time the muscle is put to the test.
(33)
A．Because the fibers of his muscles are very thick.
B．Because he has more muscles.
C．Because his muscles are made of more stringy fibers.
D．Because the number of his muscles was fixed during his childhood.
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It has been estimated that the earth’s surface temperature has increased ________ one quarter to three quarters of a degree since 1805.
A) to
B) be
C) at
D) with
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Man's body is______his brain.
A．forty-one times as weighty as
B．forty times weightier than
C．thirty-nine times as weighty as
D．forty times the weighty of
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It has been estimated that the earth's surface temperature has increased ______ one quarter to three fourths of a degree since 1850.
A．by
B．at
C．to
D．with
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Mr．Cousins attributed the bad chemical changes in his body to
A．unhappy thoughts．
B．a severe illness．
C．weak bones．
D．too much sleep．
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Mind and body are two parts of a complex organism controlled by the nervous system, which acts on information received from the senses. The way a person perceives and reacts depends on his mood, his state of health, his diet, his body temperature and his level of consciousness.
2. There is considerable evidence that every thought or emotion has some related physical effect, and that every change within the nervous system should have some psychological effect. Although the precise nature of these correlations is not always known, the view that body and mind are constantly interacting in some way is now accepted by most psychologists.
3. The relationship between mind and body is particularly apparent in emotional states, especially those of fear and anger. When a person is in the grip of a powerful emotion his body undergoes changes, just as it does when he is asleep, ill or under the influence of drugs or alcohol. Most people are familiar with such sensations as a dry mouth when they are nervous, or a racing heart when they are afraid or excited. Such physical changes can be measured, for instance, by recording pulse rate and breathing, or by measuring the dilation of the pupils of the eyes.
4. a particularly sensitive measure of bodily change during periods of emotion is the galvanic skin response(GSR). This is used in the instrument known as the lie detector. The GSR depends on the fact that some mental activity produces bodily changes, such as sweating, which affect the skin's resistance to electricity. To measure GSR, electrodes are placed on the palm and on the back of the hand, and a weak current is passed between the electrodes. Changes in the current are recorded in an amplified form, often by means of an automatically controlled pen on moving paper. Other recordings, for instance of pulse, blood pressure and breathing, can be made simultaneously, by an instrument called a polygraph.
5. The galvanic skin response method has proved a very efficient indicator of general psychological arousal. Even slight embarrassment will cause a defection of the recording pen.
A. Every thought or emotion has some related physical effect.
B. GSR is a measure of bodily change during periods of emotion.
C. GSR is very efficient in indicating people's emotion.
D. GSR is very expensive.
E. GSR is used to judging prisoners.
F. Mind and body has an apparent relationship.
Para 2 ______.
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Some doctors are worried about the danger of a condition ______ the bodys temperature drops so low that finally the heart stops.
A．in that
B．so that
C．except that
D．in which
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You do not need to envy his good body. Ir's time you_exercise.
A．A.must do
B．B. did
C．C. will do
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Choose the best option for the sequence of A and B. Once the gas cloud has reached a certain temperature, it is hot enough for nuclear fusion to take place. A= nuclear fusion takes place B= the gas cloud reaches a certain temperature
A、A happens first
B、B happens first
C、A and B happen at approximately the same time
D、Not given
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Uncle John has cancer and it has spread throughout his body. ______.
A．A.He must go to work
B．B.He is a good man
C．C.It's impossible
D．D.What a shock
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？？This is what his body wants to do, __4__therefor...
<span style="font-family:simsun;font-size:14px;line-height:26px;"><span style="line-height:0px;"></span></span><span style="line-height:0px;"></span>This is what his body wants to do, __4__therefore his politeness glues<span style="line-height:0px;"></span><span style="font-family:simsun;font-size:14px;line-height:26px;"><span style="line-height:0px;"></span></span>
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Jack’s mother has to （A) call him at least half a dozen （B)times until（C) he comes down（D) to his dinner.（选择有错误的一项）
A．has to
B．half a dozen
C．until
D．comes down
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Man has always wanted to fly.Some of the greatest men in history have thought about the problem.One of these，for example，was the great Italian artist, Leonardo da Vinci(达·芬奇).In the sixteenth century he made designs for machines that would fly.But they were never built.Throughout history, other less famous men have wanted to fly.An example was a man in England 800 years ago.He made a pair of wings from chicken feathers.Then he fixed them to his body and jumped into the air from a tall building.He did not fly very far.Instead，he fell to the ground and broke every bone in his body.
The first real steps took place in France, in 1783.Two brothers, the Montgolfiers, made a very large “hot air balloon”.They knew that hot air rises.Why not fill a balloon with it？The balloon was made of cloth and paper.In September of that year，the King and Queen of France came to see the balloon.They watched it carry the very first air passengers into the sky.The passengers were a sheep and a chicken.We do not know how they felt about the trip.But we do know that the trip lasted eight minutes and that the animals landed safely.Two months later，two men did the same thing.They rose above Paris in a balloon of the same kind.Their trip lasted twenty-five minutes and they travelled about eight kilometers.
26.Leonardo da Vinci ______ .
A.said that man would fly in the sky one day
B.built a kind of machine which never flew
C.drew many beautiful pictures of birds
D.made designs for flying machine
27.Eight hundred years ago an Englishman ______ .
A.made a kind of flying machine
B.tried to fly with wings made of chicken feather
C.wanted to build a kind of balloon
D.tried to fly on a large bird
28.In fact，the Englishman who tried to fly ______ .
A.lost his life
B.flew only 8minutes
C.got badly wounded
D.succeeded in flying
29.The very first air passengers in the balloon were ______.
A.two animals
B.two Frenchmen
C.the King and the Queen
D.the Montgolfiers
30.When did two Frenchmen rise above Paris？______
A.In December 1783.
B.In September 1783.
C.In November 1783.
D.In the seventeenth century.
