单选题Color-blind people often find it difficult to ______ between blue and green. A. distinguish B. compare C. separate D. contrast

单选题Speaker A: You think Sara can tell me where I can go for some shoe shopping? Speaker B: ______ She has all the info for shopping. A. You bet. B. Try yourself. C. Why not? D. I doubt.

单选题Every year in the U.S. , colleges and graduate schools continue to highly______trained people to compete for jobs that are not there. As a result, graduates cannot enter the professions for which they were trained.

单选题Man: How did you like the new exhibit at the art gallery? Woman: I still haven't been able to take any time off from studying. Question: What does the woman mean? A. She prefers the artists she has studied. B. She hopes they will take some of the paintings away. C. She hasn't gone to see the exhibit yet. D. She doesn't want to describe the exhibit.

单选题According to James Groves, ______.

单选题In a ______ of inspiration, I decided to paint the whole house white. A. flame B. flight C. flavor D. flash

单选题He wanted to read more, so he asked his friend if there was ______ to read. A. something easy enough B. something enough easy C. enough easy something D. easy enough something

单选题I remember the accident well, as if it ______ yesterday.

单选题Many theories concerning the causes of juvenile delinquency (crimes committed by young people) focus either on the individual or on society as the major contributing influence. Theories (51) on the individual suggest that children engage in criminal behavior (52) they were not sufficiently penalized for previous misdeeds or that they have learned criminal behavior through (53) with others. Theories focusing on the role of society suggest that children commit crimes in response to their failure to rise above their socioeconomic status, (54) as a rejection of middle-class values. Most theories of juvenile delinquency have focused on children from disadvantaged families, ignoring the fact that children from wealthy homes also commit crimes. The latter may commit crimes (55) lack of adequate parental control. All theories, however, are tentative and are (56) to criticism. Changes in the social structure may indirectly (57) juvenile crime rates. For example, changes in the economy that lead to fewer job opportunities for youth and rising unemployment (58) make gainful employment increasingly difficult to obtain. The resulting discontent may in turn lead more youths into criminal behavior. Families have also (59) changes these years. More families consist of one-parent households or two working parents; consequently, children are likely to have less supervision at home (60) was common in the traditional family structure. This lack of parental supervision is thought to be an influence on juvenile crime rates.

单选题Speaker A: When do you want to meet? Today after work or tomorrow evening? Speaker B: ______

单选题Recently I stood in front of my class, observing an all-too-familiar scene. Most of my students were secretly—or so they thought—looking at their smart phones under their desks. As I called their attention, students" heads slowly lifted, their eyes reluctantly glancing forward. I then cheerfully explained that their next project would practice a skill they all desperately needed: holding a conversation. Several students looked confused. Others moved uneasily in their seats, waiting for me to stop watching the class so they could return to their phones. Even with plenty of practice, most kids were unable to converse effectively. They looked down at their hands. Some even reached for their phone—the last thing they should be doing. As I watched my class struggle, I came to realize that conversational competence might be the single-most overlooked skill we fail to teach students. Kids spend hours each day engaging with ideas and one another through screens--but rarely do they have an opportunity to truly practice their interpersonal communication skills. Admittedly, teenage awkwardness and nerves play a role in difficult conversations. But students, reliance on screens for communication is affecting their engagement in real-time talk. It might sound like a funny question, but we need to ask ourselves: Is there any 21st century skill more important than being able to hold a confident, coherent (连贯的) conversation? When students apply for colleges and jobs, they won"t conduct interviews through their smart phones. When they negotiate pay raises and discuss projects with employers, they should demonstrate a thoughtful presence and the ability to think on their feet. But in our rush to meet 21st—century demands，we aren’t asking students to think and communicate in real time. Online discussion boards and Twitter are useful tools for exchanging ideas. But they often encourage a "read, reflect, forget about it" response that doesn"t truly engage students in extended critical thinking or conversation. As Sherry Turkle writes, "We are tempted to think that our little "sips" of online connection add up to a big gulp (大口) of real conversation. But they don"t."

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

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We often advise him not to drink more wine ______ is good for his health. A. as B. than C. that D. but

单选题Speaker A: Excuse me, could you tell me how to get to the railway station?Speaker B: ______

单选题My father was always very strict about how I talked to mother, but he was more ______ if I yelled at my brother. A. tolerable B. understandable C. harsh D. favorable

单选题The study of the relationship between productivity and living standards is significant in that ______.

单选题The union threatened a strike but called it ____ at the last minute.

单选题The firm should make a substantial profit{{U}} {{/U}}satisfactory labor relations are maintained.

单选题 Remember global warming? Back in December, the threat of climate change was thundering, and the rich countries agreed to cut their carbon-dioxide and other green-house-related emissions. Since then, interest has cooled markedly, and many European countries are already running away from the promises they made so loudly a few months ago. But there has been much talk, and a bit of action, to encourage renewable (可更新的) energies such as wind, hydro, solar and all living organisms. These emit no greenhouse gases, but tend to cost more than coal, oil or gas. The better, simpler idea is to remember that the easiest way to reduce something is to tax it—in this case, by taxing the carbon content of power. The dirtier the power, the more tax it would pay. So dirty coal would be more expensive than clean coal, which would see its price rise in relation to oil, which would be even more expensive compared to gas, which would lose some of its price advantage over renewables. Unless a carbon tax was so huge as to be economically crippling, it would not remove the price differential (差别) between all renewables and fossil fuels. But it would narrow that gap, by fixing the differing environmental costs into the price—a useful principle in itself. It would also give renewable producers a strong incentive to cut costs, and fossil-fuel suppliers an motivation to clean their products. Precedents suggest strongly that a carbon tax would be effective. But the disadvantage to carbon taxes is political. After almost a decade of trying, the European Union gave up an attempt at a European carbon tax last year. Germany's ruling coalition is fighting against a proposed energy tax. In America, politicians believe that even mentioning the notion is certain death. But many of the political objections could be met if a carbon tax were made up for the loss elsewhere, for example by lowering payroll or sales taxes. There is always suspicion when governments come up with clever new ways to tax, and rightly so. The response to that suspicion should be to win the argument, not to abandon it.