单选题I"m sure he understands ______ you feel. He"s very clever.

单选题A: Do you mind if I take off my jacket? B: ______

单选题One advantage of keeping a record of your spending is that ______.

单选题Bill has been looking for his gloves for quite a while, which ______eventually under a cushion.

单选题We will go out for a picnic_______it doesn't rain tomorrow．

单选题A king once 1 seriously ill. His doctors and wise men tried cure 2 cure. But nothing 3 . They were ready to 4 hope when the king"s old servant spoke up. He said, "If you can find a happy man, take the shirt from his back and 5 it on the king, then he will 6 ." So the king"s officials rode 7 throughout the kingdom, yet nowhere 8 a happy man. No one seemed 9 ; everyone had some complaints. If a man was rich, he never had enough. If he was not rich, it was someone else"s 10 . If he was 11 , he had a bad mother-in-law. If he had a good mother-in-law, he was catching a cold. Everyone had something to complain about. 12 , one night the king"s own son was passing a small cottage 13 he heard someone say, "Thank you. I"ve finished my daily labor, and helped my fellow man. My family and I have eaten our fill, and now we can 14 and sleep in peace. 15 more could I want?" The prince was very happy 16 a happy man at last. He gave 17 to take the man"s shirt to the king, and pay the 18 as much money as he 19 . But when the king"s officials went into the cottage to take the happy man"s shirt 20 his back, they found he had no shirt at all.

单选题In the author' s eyes, the search for extra-terrestrial intelligence______.

单选题The author's reaction to the statement by the Ministry of Business and Industry is _______.

单选题Customs Officer: Good morning. May I see your visa, please?Tourist: ______.

单选题{{B}}Passage Four{{/B}} Roger lived in the city of London, and his hair was always cut by the same old man. He always cut Roger’s hair as Roger liked it, and while he was doing it, the two men talked about football. One day, when Roger was sitting in his chair, and his hair was being cut as usual, the old man said to him, "Roger, I'm going to be seventy years old next month and I feel tired, so I'm going to sell my shop to a young man. He liked to cut hair for people." Roger was sorry to hear that, because he enjoyed talking to the old man, and he was also worried that his hair would not be cut as well by the new young man as it had been for so many years by his old friend. He went to the shop again the next month, and the new young man was there. He cut Roger’s hair, but he did it badly. The next month, Roger went into the shop again. The young man asked him how he would like his hair cut, and Roger answered, "Please cut it very short on the right side, but leave it as it is on the left. It must cover my ear. On top, cut all the hair away in the middle, but leave a piece at the front." The young man was very surprised when he heard this, "But sir," he said, "I can’t cut your hair like that!" "Why not?" Roger asked. "That’s how you cut it last time."

单选题We can safely conclude that a student may fail in an exam if ______.

单选题The cakes are delicious. He'd like to have ______ third one because ______ second one is rather too small. A. a; a B. the; the C. a; the D. the; a

单选题(Annoying) at the long check-out lines, the shopper began (to sigh) loudly, tap his (foot), and (glance) at his watch.A. AnnoyingB. to sighC. footD. glance

单选题______ rapidly by the body, sugar provides a quick energy source.

单选题 If you had entered the office ten minutes ago, you ______ what we were talking about just now.

单选题Our boss told me my plan was still ______ discussion.

单选题 Almost 150 years after photovoltaic (光电的) cells and wind turbines (涡轮机) were invented, they still generate only 7% of the world's electricity. Yet something remarkable is happening. From being secondary to the energy system just over a decade ago, they are now growing faster than any other energy source and their falling costs are making them competitive with fossil fuels. BP, an oil firm, expects renewables to account for half of the growth in global energy supply over the next 20 years. It is no longer far-fetched to think that the world is entering an era of clean, unlimited and cheap power. There is a problem, though. To get from here to there requires huge amounts of investment over the next few decades. Normally investors like putting their money into electricity because it offers reliable returns. Yet green energy has a dirty secret. The more it is used, the more it lowers the price of power from any source. That makes it hard to manage the transition to a carbon-free future, during which many generating technologies, clean and dirty, need to remain profitable if the lights are to stay on. Unless the market is fixed, subsidies to the industry will only grow. Policymakers are already seeing this inconvenient truth as a reason to put the brakes on renewable energy. In parts of Europe, investment in renewables is slowing as subsidies are cut back. However, the solution is not less wind and solar. It is to rethink how the world prices clean energy in order to make better use of it. At its heart, the problem is that government-supported renewable energy has been imposed on a market designed in a different era. For much of the 20th century, electricity was made and moved by vertically integrated, state-controlled monopolies. From the 1980s onwards, many of these were broken up, privatized and liberalized, so that market forces could determine where best to invest. Today only about 6% of electricity users get their power from monopolies. Yet everywhere the pressure to decarbonize power supply has brought the state creeping back into markets. This is disruptive for three reasons. The first is the subsidy system itself. The other two are inherent to the nature of wind and solar, their intermittency and their very low running costs. All three help explain why power prices are low and public subsidies are addictive.