单选题Even after the speech was over, the audience( )leave because they were so deeply moved.

单选题The brothers are ______ that they share all they have.

单选题 There were limits to how green Bruce Letvin was willing to go. For years, the 53-year-old anatomy professor had wanted to install solar panels on his Manhattan Beach, Calif., home. But the up-front installation costs always outweighed the benefits for the environment and his conscience. This spring, however, he managed to work out green financing with the help of solar company SunPower. After determining that his electricity bills and roof exposure were large enough to make him a good candidate for its solar panels, the company helped him find a 15-year loan for the $64,500 system. Yes, his $550 loan payment is more than the $300 or so he used to spend each month on electricity bills,—so far, he has generated enough solar power that he doesn't need to take any juice from the grid—but after he pays off the loan, his power will be free. That stiff up-front cost has always been the biggest barrier to residential use of solar power. An average set of rooftop panels costs $20,000 to $30,000 and takes 10 to 15 years to produce enough electricity to pay for itself—a deal not unlike asking a new cell-phone owner to pay in advance for a decade's worth of minutes. But that equation will change as the cost of solar panels drops and the price of fossil-fuel-generated electricity rises. And now solar companies and banks are helping homeowners stretch the cost over the lifetime of the panels, and sunny California is at the forefront of this trend. SolarCity, one of the biggest panel installers in the state, began offering no-money-down leases for home installation. Says CEO Lyndon Rive, 'If you had the choice of using clean power over dirty power and paying less for it, wouldn't you take it?' Still, solar isn't for every home. Different parts of the U.S. receive vastly different amounts of sunlight, so a solar panel in sun-drenched Las Vegas will always be more productive than one in cloudy Seattle. Incentives vary from state to state and can tip the numbers as well. But financing means that at least you won't need a lot of excess green to go green.

单选题What is implied in the passage?

单选题Mrs. Morris’s daughter is pretty and _____, and many girls envy her.

单选题No country in the world has more daily newspapers than the USA. There are almost 2,000 of them, as compared with 180 in Japan, 164 in Argentina and 111 in Britain. The quality of some American papers is extremely high and their views are quoted all over the world. Distinguished dailies like the Washington Post or the New York Times have a powerful influence all over the country. However, the Post and the Times are net national newspapers in the sense that The Times is in Britain or LeMonde is in France, since each American city has its own daily newspaper. The best of these present detailed accounts of national and international news, but many tend to limit themselves to state or cite news. Like the press .in most other countries, American newspapers range from the "sensational", which feature crime, sex and rumor, to the serious, which focus on factual news and the analysis of world events. But with few exceptions American newspapers try to entertain as well as give information, for they have to compete with television. Just as American newspapers give way to all tastes, so do they also try and apply to readers for all political persuasions. (80)A few newspapers support extremist groups on the far right and on the far left, but most daily newspapers attempt to attract middle-of-the-road Americans who are essentially moderate. Many of these papers print columns by well-known journalists of different political and social views, in order to present a balanced picture. As in other democratic countries American newspapers can be either responsible or irresponsible, but it is generally accepted that the American press serves its country well and that it has more than once bravely uncovered political scandals (丑闻) or crimes, for instance, the Watergate Affair. The newspapers drew the attention of the public to the fears of the Vietnam War.

单选题It is the ability to do the job ______ matters not where you come from or what you are.

单选题Don't rest on your laurels; ______ your success and start looking for new markets now.

单选题Though every morning I queue(排队) at the bus stop very early, I am often (41) for school. The reason is that there are (42) buses for all the people who queue up at the stop, and the buses often arrive there late. (43) the time table,there should be a bus (44) fifteen minutes, but one often has to wait (45) hour for a bus to arrive. By the time the bus arrives, (46) so many people in the queue that those near the (47) can't get on the bus and (48) to wait for another thirty minutes before the (49) bus arrives. I wish the bus (50) would put more buses on.

单选题Mr. Verder never thought that he would become a member of the board of directors because of his ______ origin.

单选题From the passage we know that toaster, stove and oven ______.

单选题The education ______ for the coming year is about $4 billion, which is much more than what people expected.

单选题Speaker A: You don't have to play that record so loud, do you?Speaker B: ______.

单选题Everyone who heard the story found it Uincredible/U.

单选题My grandmother has been ill for two months, so her health has _______.

单选题 Are you diligently exercising but seeing no results around your midsection (上腹部)? It's not just you. Two new studies may explain why many people who begin exercise programs often lose little to no weight in the long run. In the first study, published in the online science journal PLoS One, researchers compared the daily energy expenditures of Westerners and the Hadza, a population of hunter-gatherers living in northern Tanzania. Many believe modem Westerners burn fewer calories than in the past because their lives have become more sedentary (久坐的). The Hadza, who are generally very lean, hunt and look for food without modem tools such as vehicles or guns. Men walk about seven miles each day, while women walk about half that. What was surprising was that although the Hadza seem to be more active, the researchers found little difference in calories burned between the Hadza and the Westerners. The second study, published in Obesity Reviews, analyzed the effect of exercise interventions on body composition. The researchers found that—contrary to popular belief—when people exercise but keep their energy intake constant, their resting metabolic (新陈代谢的) rate actually goes down. Exercisers who ate more calories than they usually do did burn more fat than predicted, but some overate and negated the effects of their hard work. These studies suggest two things: exercise programs may not lead to as much calorie bum as you would think, and many people start eating more when they exercise, and they may eat too much. Bottom line, if you start exercising to lose weight, you won't succeed with the mentality of 'I can eat anything because I'll burn it off later.' You will have better results if you choose a healthy diet of whole grains, fruits and vegetables, lean proteins and healthy fats while exercising. Although these two studies show that diet may be more important than exercise for weight loss, don't discount the other benefits of exercise, including decreased stress and anxiety, improved mood and reduced risk of cardiovascular (心血管的) disease, diabetes (糖尿病) and some cancers.

单选题Melting snow______ the regular spring floods in the valley.

单选题He is poor in grammar and sometimes cannot even ______ a verb from a noun.