U.S. President urged the U.S. Congress to play a key ro-找考题网

单项选择题People did not begin to use unmanned vehicles in undersea exploration until recently because of______.

A. the communication problem
B. the movement of waves
C. the ocean depths
D. the problem of vacuum

单项选择题D

单项选择题According to the passage, which of the following statements is NOT true A. There is no accurate figure of the number of sleepwalkers. B. Stories of sleepwalkers are all fantasies. C. Sleepwalkers can be considered half awake in their sleep. D. Voltaire knew a sleepwalker who once danced a minuet in sleep.

At the University of Iowa, a student was reported to have the habit of getting up in the middle of the night and walking three-quarters of a mile to the Iowa River. He would take a swim and then go back to his room to bed.
The world’s champion sleepwalker was supposed to have been an Indian, Pandit Ramrakha, who walked sixteen miles along a dangerous road without realizing that he had left his bed. Second in line for the title is probably either a Vienna housewife or a British farmer. The woman did all her shopping on busy streets in her sleep. The farmer, in his sleep, visited a veterinarian miles away.
The leading expert on sleep in America claims that he has never seen a sleepwalker. He is Dr. Nathaniel Kleitman, a physiologist at the University of Chicago. He is said to know more about sleep than any other living man, and during the last thirty-five years has lost a lot of sleep watching people sleep. Says he, "Of course, I know that there are sleepwalkers because I have read about them in the newspapers. But none of my sleepers ever walked, and if I were to advertise for sleepwalkers for an experiment, I doubt that I’d get many takers."
Sleepwalking, nevertheless, is a scientific reality. Like hypnosis, it is one of those dramatic, eerie, awe-inspiring phenomena that sometimes border on the fantastic. It lends itself to controversy and misconceptions. What is certain about sleepwalking is that it is a symptom of emotional disturbance, and that the only way to cure it is to remove the worries and anxieties that cause it. Doctors say that somnambulism is much more common than is generally supposed. Some have estimated that there are four million somnambulists in the United States. Others set the figure even higher. Many sleepwalkers do not seek help and so are never put on record, which means that an accurate count can never be made.
The simplest explanation of sleepwalking is that it is the acting out of a vivid dream. The dream usually comes from guilt, worry, nervousness, or some other emotional conflict. The classic sleepwalker is Shakespeare’s Lady Macbeth. Her nightly wanderings were caused by her guilty conscience at having committed murder. Shakespeare said of her, "The eyes are open but their sense is shut. "
The age-old question is: ls the sleepwalker actually awake or asleep Scientists have decided that he is about half-and-half. Like Lady Macbeth, he has weighty problems on his mind. Dr. Zeida Teplitz, who made a ten-year study of the subject, says, "Some people stay awake all night worrying about their problems. The sleepwalker thrashes them out in his sleep. He is awake in the muscular area, partially asleep in the sensory area." In other words, a person can walk in his sleep, move around, and do other things, but he does not think about what he is doing.
There are many myths about sleepwalkers. One of the most common is the idea that it’s dangerous or even fatal to waken a sleepwalker abruptly. Experts say that the shock suffered by a sleepwalker suddenly awakened is no greater than that suffered in waking up to the noise of an alarm clock. Another mistaken belief is that sleepwalkers are immune to injury. Actually most sleepwalkers trip over rugs or bump their heads on doors at some time or other.

单项选择题The man Mr. Cheney accidentally shot and injured is

A. a doctor.

B. a secretary.
C. a lawyer.

D. a leader.

单项选择题What strikes the woman most about the male robber is his ______.

A. clothes
B. age
C. physique
D. appearance

U.S. President urged the U.S. Congress to play a key role in the fight against ______ in Africa. 您的浏览器不支持 audio 元素。

U.
S. President urged the
U.
S. Congress to play a key role in the fight against ______ in Africa.