单选题The newly built power plant can generate 10 billion kilowatts of power.

单选题{{B}}Passage Five{{/B}} Most parents prize the diversity within their children's public schools. They know that learning to cooperate and excel in a diverse, real-world setting is a key to success in the 21st-century workplace and marketplace. But how "diverse" and "real-world" is a school that does not have any minority teachers? The bad news today is that some 40 percent of America's public schools have no teachers of color. The good news is that we have an opportunity to recruit and encourage more Americans of color to enter the teaching profession. And our success in doing so can have a powerfully positive impact on student achievement. Obviously, a teacher's effectiveness depends, first and foremost, on his or her skills and high expectations, not on the teacher's color. Yet we also know that children of color—40 percent of the student population and rising—benefit in important ways by having some teachers who look like them, who share similar cultural experiences, and who serve as role models demonstrating that education and achievement are things to be respected. Bear in mind that teachers do not teach only facts and "content". They also model appropriate behaviors and teach by personal example. And for many children, the teachers and other adults in their school are the most important authority figures outside of their home. So it is important to expose children to a diverse teaching staff—and to diverse role models—within each of our schools. Where we have an urban school with an all-minority staff or a suburban school with an all-white staff, we are giving students a stunted educational experience. Issues of diversity are especially relevant today, as public schools are redoubling their commitment to raising standards and closing achievement gaps. We need to seize every opportunity to boost the achievement of poor and minority students. I believe—and an impressive body of research confirms—that recruiting and retaining more minority teachers can be crucial to our success. NEA has made it a core strategic priority to increase the recruitment and retention of teachers of diverse backgrounds. Beyond NEA's own programs, we are joining with other organizations to create the National Collaborative on Diversity in the Teacher Workforce. But we can't do it alone. States and school districts need to develop programs to assist teacher's aides—large numbers of whom are minorities—to advance their education and become fully licensed teachers. Other programs can reach out to minorities still in school, offering encouragement and incentives to enter the teaching profession. At the same time, states must ensure that relevant tests do not bar promising minority candidates from entering the profession.

单选题The owner wouldn't ______ to our making any structural change in the flat.

单选题One type of detective story features a brilliant amateur who, by perceptively analyzing motives and clues, solves crimes that are {{U}}baffling{{/U}} to the police.

单选题Lighting levels are carefully controlled to fall within an acceptable level for optimal reading convenience.

单选题People"s attitude towards their work determines everything. To workers, leisure means simply the hours they need to relax and rest in order to work efficiently. Workers are therefore more 21 to dedicate more time to working, taking too little 22 rather than too much. To laborers, on the other hand, leisure means autonomy from compulsion, 23 it is natural for them to imagine that the fewer hours they have to spend laboring, and the more hours they have free to play, the 24 . Besides mere hours spent in leisure, workers and laborers 25 in the amount of personal satisfaction they derive from their jobs. Workers who enjoy their jobs will be happier, less stressed, and generally more 26 with their lives. They will also work with more diligence and precision 27 they have fostered a sense of personal pride in their jobs. On the other hand, laborers, whose sole incentive is 28 their livelihood, feel that the time they spend on the daily routine is wasted and doesn"t contribute to their happiness. 29 valuing all 24 hours of their day as enjoyable and productive hours, they gauge only the time spent in leisure and play as meaningful. Unfortunately, laborers are all too 30 and only a small percentage of the population is in the lucky position of being workers.

单选题Annie's job as an assistant at the university observatory was to {{U}}classify{{/U}} stars according to their spectra.

单选题Woman: Jimmy said that he was going to marry a rich French businesswoman. Man: Don't be so sure. He once told me that he had bought a big house. Yet he's still sharing an apartment with Mark. Question: What does the man imply?

单选题The design of this architecture shows a great deal of originality . We have never seen a building like that before.

单选题General acceptance of 3-D. films may prove hard to come by, as the experience of three decades ago indicated.

单选题It is reported that a completely new situation will ______ when the examination system comes into existence.

单选题The pursuit of maximum profit often drives manufacturers to Uturn out/U things that can do harm to people’s health.

单选题The growth of part-time and flexible working pattern allows more women to Utake advantage/U of jobopportunities.

单选题The sitting-room feels comfortable with the fireplace {{U}}shedding {{/U}}warm and faint light.

单选题A: We each have our own desk and dresser, but we'll have to share the bookcase and the closet. B: ______.

单选题According to the U. S. National Highway Traffic Safety Administration (NHTSA) , car crashes are the leading cause of death among children between 5 and 14 years of age. Says NHTSA: " (61) 50% of children who die in crashes are unrestrained. In addition, 4 out of 5 children are (62) restrained. " The NHTSA offers a number of safety (63) and cautions for those who are accompanied by children while driving. (64) laws vary from country to country and even from state to state, these guidelines may serve as food for (65) to many parents and guardians of children. The safest place for all children is in the back seat. Infants should be placed in a rear-facing child safety seat in the baekseat of the car. A child (66) a year old and weighing at least 20 pounds may be placed in a forward-facing seat. At 40 pounds, the child can use a "booster seat(儿童案例椅) ", (67) is secured by one of the car's lap and shoulder belts. At approximately 80 pounds and a (68) of about four feet nine inches, the child may begin using an adult safety strap. Children should not sit in the front passenger seat (69) they are at least 13 years of age. Front- passenger air bags can cause serious (70) to younger children and babies. When a booster seat is used, a lap belt alone will not provide (71) protection if the booster seat does not have a (72) . Do not think that a shoulder belt alone will protect a small child; in the (73) of a crash, the belt may (74) the neck of the child, causing serious injury or even death. Follow instructions closely when (75) and using child seats. According to NHTSA, "even the 'safest' seat may not protect your child if it isn't used correctly. /

单选题The {{U}}ultimate{{/U}} cause of the American Civil War was bombardment of Fort Sumter.