topsoil on it, and sowed the plant seeds on the refuse, consisting of waste coal, rock, clay and mining debris. Initially, the plots were dominated by invading annual weeds, but in the second and third growing seasons desirable grasses and other plants became well-established. The scientists’findings are believed to be the first step toward restoring some22,500 acres of coal refuse sites in Illinois and thousands of acres in other states.
106. What is the man topic of the passage?
A) Abandoned coal mines. B) Reclamation of a mine disposal site C) New species of plants. D) Regions where coal has caused scars 107. According to the passage, what have scientists been testing?
A) How to locate abandoned mines. B) The disposal of toxic wastes. C) The growth potential of certain plants. D) How to convert refuse into
useable energy
108. How many kinds of plants did the scientists test?
A)one B)Two C)There D)Eight
109. According to the passage, what did researchers do to prepare the area? A) They ground up the rocks. B）They added some topsoil. C) They added fertilizer D) They refused to do anything.
110. It can be inferred from the passage that in the United States, abandoned coal mines exist___.
A) Primarily in Illinois B)in limited numbers C)in several states D)near operational mines
I recall that when I was a child, a person with good teeth, was though to be beautiful regardless of any other negatives. Almost every adult I knew had missing teeth.
Brushing one?s teeth regularly was viewed as a waste of time, even as extreme behavior, since “sooner or later they all come out any way.” Public statements promoting oral hygiene ( 口腔卫生) were doubted. Dentists were seen only when the pain of decayed teeth became unbearable. At that point, the only treatment then known was pulling out the unhealthy tooth. It followed that as people grew older; they had fewer and fewer teeth, ultimately becoming completely toothless. It requires little imagination to see the effect of this loss on their appearance.
Social and economic status (地位) had little to do with beauty of one?s smile. Young and old, rich and poor, all adjusted to the changes which modified one?s appearance as a result of losing teeth.
Side by side with advances in all other sciences, personal grooming (cleaning ) products and practices have advanced unusually. As late as the twenties, my hair was washed with a special kind of soap once every two weeks. More frequently washing was viewed as drying and unhealthy for the hair. Frequent brushing was recommended to keep the hair clean.
111. According to the passage people went to see dentists only when ____. A) they could not stand toothache B) their teeth were missing
C) their teeth were badly decayed D) they had fewer and fewer teeth
112. “Regardless of any other negatives” in Paragraph One means _____. A) in spite of any other good features B) in spite of any other poor features C) concerning any other favorable factors D) concerning any other unfavorable factors 113. In the early years of the author, _____.
A) people did not pay much attention to oral hygiene B) people wasted a lot of time brushing their teeth C) very few people suffered from bad toothache D) all old people lost their teeth in the end
114. We can learn from Paragraph 4 that people used to be advised to avoid _____.
A) pulling out their teeth B) frequently brushing the teeth C) drying their hair D) frequently washing the hair
115. This passage suggests that people are paying more and more attention to _____.
A) dental health B) personal beauty C) personal hygiene D) hair style
Just seven years ago, the Jarvid-7 artificial heart was being cheered as the model of human creativeness. The sight of Barney Clark－alive and conscious after trading his diseased heart for a metal-and-plastic pump-convinced the press, the public and many doctors that the future had arrived. It hadn?t. After monitoring production of the Jarvik－7, and reviewing its effects on the 150 or so patients (most of whom got the device as a temporary measure)the U.S.Food and Drug Administration concluded that the machine was doing more to endanger lives than to save them. Last week the agency canceled its earlier approval, effectively banning the device.
The recall may hurt Symbion Inc, maker of the Jarvid-7, but it won?t end the request for an artificial heart. One problem with the banned model is that the tubes connecting it to an external power source created a passage for infection. Inventors are now working on new devices that would be fully placed, along with a tiny power pack, in the patient?s chest. The first sample products aren?t expected for another 10 or 20 years. But some people are already worrying that they?ll work and
that America?s overextended health-care programs will lose a precious2.5 billion to 5billion a year providing them for relatively few dying patients. If such expenditures cut into funding for more basic care, the net effect could actually be a decline in the nation?s health.
116.According to the passage the Jarvid-7 artificial heart proved to be___.
A) a technical failure B)a technical wonder
C) a good life-saver D)an effective means to treat heart disease 117. From the passage we know that Symbion Inc._____.
A) has been banned by the government from producing artificial hearts
B) will review the effects of artificial hearts before designing new models C) may continue to word on new models of reliable artificial hearts
D) to create a new passage for infection
118. The new models of artificial hearts are expected____.
A) to have a working life of 10 or 20 years B) to be set fully in the patient?s chest
C) to be equipped with an external power source D) to create a new passage for infection 119.The word“them” in (Para.2)refers to____.
A) doctors who treat heart disease0s B)makers of artificial hearts C) America?s health-care programs D)new models of artificial hearts 120. Some people feel that____.
A) artificial hearts are seldom effective
B) the country should not spend so much money on artificial hearts C) the country is not spending enough money on artificial hearts
D) America?s health-care programs are not doing enough for the nation?s health
During the rest of sleep, the fatigue of the body disappears. The tired mind gathers energy: the memory improves and troubles and problems are seen in better perspective.
Some adults require little sleep others need eight to ten hours in every twenty-four hours. Infants sleep sixteen to eighteen hours daily, the amount gradually going less as they grow older. Young students may need twelve hours; university students may need ten. A worker with a physically demanding job may also need ten, whereas an executive working under great pressure may manage on six to eight. Many famous people are reputed to have required little sleep. Napoleon Bonaparte, Thomas Edison, and Charles Darwin apparently averaged only four to six hours a night.
Whatever our individual need, you can be sure that by the age of thirty you will have slept for a total of more than 12 years. By that age you will also have developed a sleep routine: a favorite hour, a favorite bed, a favorite posture, and a formula(程序) you need to follow in order to rest comfortably.
Investigators have tried to find out how long a person can go without sleep. Several people have reached more than 115 hours--nearly five days. Whatever the limit, it is absolute. Animals kept awake for from five to eight days have died of exhaustion. The limit for hum beings is probably a week. 121 According to the passage, what can sleep do for people? A. Improve people's memory.
B. Help people to seek new perspective for problems. C. Make the fatigue disappear. D. All of the above.
122. Together with a child's growth，sleeping time ____ A. remains the same B. gradually increases C. gradually decreases D. gradually vanishes
123 If a person has to make a sudden change in his sleep routine, A. he will be little affected B. he will not rest comfortably
C. he will adapt to a new routine in no time
D. he will be ill
124. What does the last sentence imply? A. People can live without sleep.
B. People can keep awake as long as they want to. C. People can sleep as long as they want to. D. People can not survive without sleep.
125. Which of the following statement is Not true?
A. The amount of sleep has nothing to do with an individual's age. B. Sleep is important for good mental and physical health.
C. The longest time a human being can survive without sleep is probably seven days. D. By the age of thirty a person may have slept for a total of more than 12 years.
Albert Einstein once attributed the creativity of a famous scientist to the fact that he “never went to school, and therefore preserved the rare gift of thinking freely.” There is undoubtedly a truth in Einstein?s observation; many artists and geniuses seem to view their schooling as a disadvantage. But such a truth is not a criticism of school. It is the function of schools to civilize, not to train explorers. The explorer is always a lonely individual whether his or her pioneering be in art, music, science, or technology. The creative explorer of unmapped lands shares with the genius what William James described as the “faculty of perceiving in a dishabitual way.” In so far as schools teach perpetual patterns they tend to destroy creativity and genius. But if schools could somewhat exist solely to cultivate genius, then society would bread down. For the social order demands unity and widespread agreement, both traits are destructive to creativity. There will always be conflict between the demands of society and the impulses of creativity and genius.
126. Albert Einstein once thought that schools____.
A) helped develop the creativity of a scientist B)preserved a rare gift for a scientist
C) prevented a scientist from thinking freely
D)contributed a lot to science and technology
127.To the author?s opinion, schooling meets the need of____.
A) genius B)social order C)faculty of perceiving D)the impulses
of creativity
128. There will always be contradiction between______. A) the demands of society and schooling
B) cultivation of creativity and faculty of perceiving C) social unity and schooling
D) creativity and widespread social agreement 129. Einstein?s observation is in accord with____.
A) schoolmasters? B)the author?s C)many artists ?and geniuses
D) both B)and C)
130. Which statement best expresses the main idea of the passage?
A) Einstein and artists have said schools limited creativity and social order. B) Schools should be designed to encourage creativity and social order.
C) Explorers and geniuses stood at the world differently from the way most
people do.
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