单选题It seems that the author of the passage ______ what Dr. Cotes says in the book "The Privileged Ones".

单选题Famed singerSteve Wonder can't see his fans dancing at his concerts. He can't see the hands of his audience as they applaud wildly at the end of his Superstition. Blind from birth, Wonder has waited his whole life for a chance to see. Recently, Wonder visited Mark Humayan, a vision specialist. He thought that a new device currently being studied by Humayan might offer him that chance. The device, a retinal prosthesis, is a tiny computer chip implanted inside a patient's eye. The chip sends images to the brain and allows some sightless people to see shapes and colors. Wonder hoped the retinal prosthesis might work for him. "I've always said that if ever there's possibility of my seeing," said Wonder, "then I would take the challenge." Unfortunately for Wonder, that challenge will have to wait. Humayan explained that the device isn't ready for people who have been blind since birth. Their brains may not be able to handle signals from a retinal prosthesis because their brains have never handled signals from a healthy eye. However the retinal prosthesis and other devices show great promise in helping many other sightless people who once had vision see again. Perhaps one day soon, some formerly sightless people may be in Wonder's audience looking up—and seeing him—for the very first time. Wonder's willingness to take part in retinal prosthesis studies and the results of those studies are giving new hope to people who thought they would be blind for the rest of their lives. More than one million people in the United States are considered legally blind, meaning that their eye- sight is severely impaired. Another one million are totally blind. Two types of specialized cells in the retina—rods and cones—are critical for proper vision. Light enters the eye and falls on the rods and cones in the retina. Those cells convert the light to electrical signals, which travel through the optic nerve to the brain. The brain interprets those signals as visual images. Rods detect light at low levels of illumination. For instance, rods allow you to see faint shadows in dim moonlight. Cones, on the other hand, are most sensitive to color. Some diseases can damage cells in the retina. For instance, macular degeneration causes blind ness and other vision problems in 700,000 people in the United States each year. The condition i caused by a lack of adequate blood supply to the central part of the retina. Without blood, the rods, cones, and other cells in the retina die. Devices such as the retinal prosthesis won't prevent or cure our eye diseases, but they ma help patients who have eye disorders regain some of their vision. Different forms of retinal presto sis are currently being developed. On one type, a tiny computer chip is embedded in the eye The chip has a grid of about 2,500 light-sensing elements called pixels. Light entering the eye strikes the pixels, which convert the light into electrical signals. The pixels then send the electrical signals to nerve cells, behind the retina. Those cells send signals vi the optic nerve to the brain for interpretation. Many people who have had a retinal prosthesis implanted say they can see shapes, colors and movements that they couldn't see before. "It was great," said Harold Churchey, who n ceived his retinal prosthesis 15 years after he became totally blind. "To see light after so long—was just wonderful. It was just like switching a light on./

单选题We all know that every culture has its own ideal of behavior, and the United States is no ______. A. expectation B. exclusion C. expectancy D. exception

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单选题I don't know him very well，______I have met him socially on a couple of occasions． A．so that B．when C．although D．since

单选题______, I seated him in an armchair.

单选题Jim was ______ asking his mother to buy him a new bike, so she finally gave in. A. hesitant about B. concerned with C. eager for D. persistent in

单选题Never laugh at a snow covered mountain! Laughter and yelling, during the avalanche season, can cause a deadly pile of snow. Huge snow slides are most common in mountains where there are steep slopes that are well buried in snow and ice. The snow builds up slowly and lands very softly. This can create a very touchy, unstable situation. Tons of snow may be held up by only the friction between snowflakes. The deep snow is like a house of cards. The slightest movement can cause it to fall. As soon as something slips, this great mass of snow will come crashing down the mountainside. Slides may be started by sound vibrations. They may also be started by the weight of wet, melting snow. Once an avalanche has been triggered, the cause no longer matters. Moving down a steep slope, it picks up great speed and added snow. Some avalanches travel as fast as two hundred miles per hour. The force of an avalanche will mow down anything in its path. Whole houses have been swallowed up by these fast-paced piles of snow. The wind that is caused by an avalanche is almost as destructive as the snow itself. Winds from an avalanche have been known to travel as fast as those of a tornado. So, when approaching a thickly snow covered mountain, speak softly!

单选题One of V. S. Naipaul" s best-known nonfictional works is______.

单选题______ you are at home alone, please don't leave the door open. A. While B. As C. Before D. How

单选题He became aware that he had lost his audience since he had not been able to talk ______around one topic.(2004年武汉大学考博试题)

单选题I hope my teacher will take my recent illness into ______ when judging nay examination. A. regard B. account C. thought D. observation

单选题You ______ be driven out of the school if you dare to cheat in the exam. A. should B. would C. will D. shall

单选题He said he ______ the next day.

单选题The two men in the van _____.

单选题I am firmly______that this plan would do much good to our company.

单选题Identify the Rhetorical Devices(20%) Each of the following sentences contains a rhetorical device. Identify this device and write the letter of your choice on your ANSWER SHEET. Example: My love is as a fever, longing still For that which longer nurseth the disease, (Shakespeare, Sonnet 147) A. simile B. metaphor C. assonance D. oxymoron You write; AHitting that telephone pole certainly didn"t do your car any good.

单选题As used in the third sentence of the second paragraph, "daily bread" refers to ______.