单选题Successful innovations have driven many older technologies to extinction and have resulted in higher productivity, greater consumption of energy, increased demand of raw materials, accelerated flow of materials through the economy and increased quantities of metals and other substances in use each person. The history of industrial development abounds with examples. In 1870, horses and mules were the prime source of power on U.S. farms. One horse or mule was required to support four human beings—a ratio that remained almost constant for many decades. At that time, had a national commission been asked to forecast the population for 1970, its answer probably would have depended on whether its consultants were of an economic or technological turn of mind. Had they been "economists", they would probably have projected the 1970 horse or mule population to be more than 50 million. Had they been "technologists", they would have recognized that the power of steam had already been harnessed to industry and to land and ocean transport. They would have recognized further that it would be the prime source of power on the farm. It would have been difficult for them to avoid the conclusion that the horse and mule population would decline rapidly.

单选题Helen ______ painting for a while, but soon lost interest.

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单选题Some ______ like pop music; others don"t.

单选题When confronted with such an urgency, my mind goes ______, and I can hardly remember my own date of birth.

单选题We cannot choose whether we will pay income tax or not, because payment of income tax is ______.

单选题These overseas students show great ______ for learning a new language.

单选题The whole nation was stirred when news came that China"s first spaceship had been successfully launched．

单选题Football players are ______ males, though there are some females.

单选题I can"t find my notebook. I ______ it in the reading room.

单选题The situation described in the report ______ terrible, but it may not happen.

单选题She ______ away the tears on her face when she heard someone walking into the room.

单选题He was left alone, with ______ to look after him. A. someone B. anyone C. not one D. no one

单选题Culture shock is the loss of emotional balance, disorientation(方向障碍), or confusion that a person feels when moving from a familiar environment to an unfamiliar one. When it is a common experience, the degree to which it occurs will vary from one person to another. Individual personality, previous cross-cultural experience, and language proficiency all affect a person"s ability to interact socially in the new culture. The basic cause of culture shock is the abrupt loss of all that is familiar, leading to a sense of isolation. When an individual enters a strange culture, all or most of those familiar signs and hints are removed. He or she is like a fish out of water. No matter how broad-minded or good-willed he may be, a series of properties have been knocked from under him. This may be followed by a feeling of frustration and anxiety. People react to the frustration in much the same way. First they reject the environment which causes the discomfort: "The ways of the host country are bad because they make us feel bad." Another aspect of culture shock is regression(倒退). The home environment suddenly assumes a tremendous importance, and everything becomes irrationally glorified. All difficulties and problems are forgotten and only the good things back home are remembered. It usually takes a trip home to bring one back to reality. Common symptoms of culture shock include the following extremes. There are excessive concerns over delays and other minor frustrations; fear of being cheated, robbed or injured; sleeplessness or a desire to sleep more; and a great longing to go home. Underlying all these is the uncomfortable feeling of not really belonging, of being an outsider.

单选题______ the weather has improved, we"ll be able to enjoy watching the tennis game.

单选题In order to learn a foreign language well, it is necessary to overcome the fear of making mistakes. If the primary goal of language use is to communicate, then mistakes are secondary considerations that may be dealt with gradually as awareness of those mistakes increases. On the other hand, students should not ignore their mistakes. The language learner may observe how native speakers express themselves, and how native expressions differ from the way the learner might say them. For example, a Spanish speaker who has been saying "I do it" to express willingness to do something in the immediate future, could by interacting with native speakers of English, observe that native speaker actually say "I"ll do it". The resulting discrepancy(差异) can serve as a basis for the student to modify his way of using the present tense in English. But a student who is unwilling to interact in the first place would lose this opportunity to learn by trial and error.

单选题I hate ______ when I am reading a newspaper or a book.

单选题It is not ______ to discuss the question again and again.

单选题About half of the students expected there ______ more reviewing classes before the final exams.

单选题Passage 1