单选题Man: This suitcase cost me 200 dollars. Woman: 200 dollars for a piece of junk like that? That"s a rip-off! Question: What does the woman mean?

单选题Our research has focused on a drug which is so ______ as to be able to change brain chemistry. A. powerful B. influential C. multiple D. energetic

单选题Our trouble lies in a simple confusion, one to which economists have been prone since the beginning of the Industrial Revolution. Growth and ecology operate by different rules. Economists tend to assume that every problem of scarcity can be solved by substitution, by replacing tuna with tilapia, without factoring in the long-term environmental implications of either. But whereas economies might expand, ecosystems do not. They change—pine gives way to oak, coyotes arrive in New England—and they reproduce themselves, but they do not increase in extent or abundance year after year. Most economists think of scarcity as a labor problem. Imagining that only energy and technology place limits on production. To harvest more wood, build a better chain saw; to pump more oil, drill more wells; to get more food, invent pest-resistant plants. That logic thrived on new frontiers and more intensive production, and it held off the prophets of scarcity—from Thomas Robert Malthus to Paul Ehrlich—whose predictions of famine and shortage have not come to pass. The Agricultural Revolution that began in seventeenth-century England radically increased the amount of food that could be grown on an acre of land, and the same happened in the 1960s and 1970s when fertilizer and hybridized seeds arrived in India and Mexico. But the picture looks entirely different when we change the scale. Industrial society is roughly 250 years old. make the last ten thousand years equal to twenty-four hours, and we have been producing consumer goods and CO2 for only the last thirty-six minutes. Do the same for the past 1 million years of human evolution, and every thing from the steam engine to the search engine fits into the past twenty-one seconds. If we are not careful, hunting and gathering will look like a far more successful strategy of survival than economic growth. The latter has changed so much about the earth and human societies in so little time that it makes more sense to be cautious than triumphant. Although food scarcity, when it occurs, is a localized problem, other kinds of scarcity are already here. Groundwater is alarmingly low in regions all over the world, but the most immediate threat to growth is surely petroleum.

单选题Speaker A: I would like to see Prof. Adams, please. Speaker B: ______

单选题In spite of the wide range of reading material specially designed or ______ for language learning purposes, there is yet no effective and systematic program for the reading skills. A. appointed B. assembled C. acknowledged D. adapted

单选题He was surprised to find his room thoroughly cleaned and everything arranged

单选题Man: Would you like to go to the movies with Anne and me on Friday? Woman: I wish I could, but I'm having dinner at my brother's. Question: What will the woman do on Friday?

单选题Speaker A: Well, I have to get back to the office now. It's been really nice talking to you.Speaker B: ______See you. A. Glad to meet you. B. Nice talking to you too. C. I'll be right back. D. You shouldn't leave.

单选题When the man came in, carrying the machine gun, most of us looked up in surprise, because we______anything like it before.

单选题Man: Why do you want to move out? You really have a happy life. I do envy you.Woman: You don't know that I have been over-protected by my mother these years. I want to spread my own wings.Question: What does the woman mean?

单选题Speaker A: Hi, Mary. Long time no see. Speaker B: ______ A. Hi, John. Nice meeting you. B. Yeah, I've been in New York working on the new project. C. Oh, I see. I've had lots of work to do here. D. Yes. Do you know I've moved to a new apartment?

单选题As a result of the busy work, he found less time than he ______ for his hobbies.

单选题Speaker. A: It seems to be clearing up. Speaker B:______

单选题Speaker A: Here’s a gift for you. I bought it in China.Speaker B:___________

单选题Man: I don't know whether to ask Joe or Cora to draw the posters. Woman: What difference does it make? They are both excellent artists. Question: What does the woman imply about Joe and Cora? A. They are equally competent for the job. B. They both graduated from art schools. C. They majored in different areas of art. D. They are both willing to draw the posters.

单选题Even though he has lived in China for many years, Mark still can not ______ himself to the Chinese customs. A. adopt B. adept C. adapt D. accept

单选题The museum's new building will have ______ the exhibition space as before, A. three times B. three times like C. three times as D. three times larger

单选题 Teachers need to be aware of the emotional, intellectual, and physical changes that young adults experience. And they also need to give serious{{U}} (51) {{/U}}to how they can best adapt them selves to such changes. Growing bodies need movement and{{U}} (52) {{/U}}, but not just in ways that emphasize competition.{{U}} (53) {{/U}}they are adjusting to their new bodies and a whole host of new intellectual and emotional challenges, teenagers are especially self-conscious and need the{{U}} (54) {{/U}}that comes from achieving success and knowing that their accomplishments are{{U}} (55) {{/U}}by others. However, the typical teenage lifestyle is already filled with so much competition that it would be{{U}} (56) {{/U}}to plan activities in which there are more winners than losers, for example, publishing newsletters with many student-written book reviews,{{U}} (57) {{/U}}student artwork, and sponsoring book discussion clubs. A variety of small clubs can provide{{U}} (58) {{/U}}opportunities for leadership, as well as for practice in successful{{U}} (59) {{/U}}dynamics. Making friends is extremely important to teenagers, and many shy students need the{{U}} (60) {{/U}}of some kind of organization with a supportive adult barely visible in the background.

单选题Beer is the most popular drink among male drinkers, whose overall consumption is ______ higher than that of women.

单选题The manager promised to keep me ______ of how our business was going on. A. informed B. informing C. to be informed D. having informed