单选题The police are trying to get back the stolen statue.A. detainB. regainC. trackD. detect

单选题She was one of the leading writers in her age.

单选题Stage Fright Fall down as you come onstage. That"s an odd trick. Not recommended. But it saved the pianist Vladimir Feltsman when he was a teenager back in Moscow. The veteran cellist Mstislav Rostropovich tripped him purposely to cure him of pre-performance panic, Mr. Feltsman said, "All my fright was gone. I already fell. What else could happen?" Today, music schools are addressing the problem of anxiety in classes that deal with performance techniques and career preparation. There are a variety of strategies that musicians can learn to fight stage fright and its symptoms: icy fingers, shaky limbs, racing heart, blank mind. Teachers and psychologists offer wide-ranging advice, from basics like learning pieces inside out, to mental discipline, such as visualizing a performance and taking steps to relax. Don"t deny that you"re jittery, they urge; some excitement is natural, even necessary for dynamic playing. And play in public often, simply for the experience. Psychotherapist Diane Nichols suggests some strategies for the moments before performance, "Take two deep abdominal breaths, open up your shoulders, then smile," she says. "And not one of these "please don"t kill me" smiles. Then choose three friendly faces in the audience, people you would communicate with and make music to, and make eye contact with them." She doesn"t want performers to think of the audience as a judge. Extreme demands by mentors or parents are often at the root of stage fright, says Dorothy Delay, a well-known violin teacher. She tells other teachers to demand only what their students are able to achieve. When Lynn Harrell was 20, he became the principal cellist of the Cleveland Orchestra, and he suffered extreme stage fright. "There were times when I got so nervous I was sure the audience could see my chest responding to the throbbing. It was just total panic. I came to a point where I thought, "If I have to go through this to play music, I think I"m going to look for another job."" Recovery, he said, involved developing humility-recognizing that whatever his talent, he was fallible, and that an imperfect concert was not a disaster. It is not only young artists who suffer, of course. The legendary pianist Vladimir Horowitz"s nerves were famous. The great tenor Franco Corelli is another example. "They had to push him on stage," Soprano Renata Scotto recalled. Actually, success can make things worse. "In the beginning of your career, when you"re scared to death, nobody knows who you are, and they don"t have any expectations," Soprano June Anderson said. "There"s less to lose. Later on, when you"re known, people are coming to see you, and they have certain expectations. You have a lot to lose." Anderson added, "I never stop being nervous until I"ve sung my last note."

单选题After a day's fierce fighting, the enemy finally had to remove their troops from the occupied area.A. retreatB. returnC. dismissD. withdraw

单选题The bank manager asked his assistant to ______ the investment plan within a week.A. work outB. put outC. make outD. set out

单选题At the top of Jungfrau, which towers 12,000 feet above the town of Interlaken in Switzerland, the temperature is usually _______.

单选题One theory {{U}}postulates{{/U}} that the ancient Filipinos came from India and Persia. A. expects B. assumes C. predicts D. Considers

单选题Unfortunately, the rate of his expenditure surpasses that of his income.

单选题What happened to Earhart?

单选题 阅读下面的短文，文中有15处空白，每处空白给出了4个选项，请根据短文的内容从4个选项中选择1个最佳答案。 {{B}} Economic Reform in China{{/B}} More US sinologists have expressed confidence in China’s economic reform and the prospects for China’s modernization. “If the reforms are implemented,” said Doak Barnett, professor of Johns Hopkins University, they would {{U}}(51) {{/U}}the trend towards more significant and the broader economic ties between China and the United States, which will have in some respects, a favorable impact{{U}} (52) {{/U}}political relations. “Also these {{U}}(53) {{/U}}will reinforce trend for China to become more steadily involved in the international economics and the international community.” Barnett believes the {{U}}(54) {{/U}} is desirable, from China’s point of {{U}}(55) {{/U}}, and for the international community, the more active China is in the international community, the larger role it may {{U}}(56) {{/U}}in world affairs.” He said. In the direction of changing the economic system, China has made {{U}}(57) {{/U}} progress. “Personally, I think China has a capacity for moving {{U}}(58) {{/U}} in this direction, and I’m fairly confident that the Chinese leadership will {{U}}(59) {{/U}}to move in this direction.” Alfred D. Wilhelm, project director of China Policy {{U}}(60) {{/U}} the Next Decade and senior fellow at the Atlantic Council, {{U}}(61) {{/U}} the economic changes will enable China and US to deal with each other on a more equal basis. “Chinese and Americans now have opportunity to {{U}}(62) {{/U}} fully in China’s economic development and reciprocally (相互), Chinese will be able to {{U}}(63) {{/U}} technical and financial support from the American business community.” Wilhelm said,“{{U}} (64) {{/U}} China has established laws and legislations (法规) to help its open-policy, American business now has the confidence to deal with the system, as they know their{{U}} (65) {{/U}}will be protected.”

单选题Birdsong A male zebra finch chirps away to himself. Suddenly he notices a female bird nearby. He realizes he has an audience and immediately changes his song. Can the female tell the difference in his performance? According to a new study, the female zebra finch knows. And she prefers the special trills he creates when he sings to her. A male zebra finch changes his song when singing to a female in ways that people can barely detect. But the female finch can tell the difference. Scientists had noticed slight variations in the songs of male zebra finches based on whether they were singing alone or whether there was a female (and potential mate) nearby. With an audience, the males sped up the pace of their songs and controlled the notes they used. For this study, researchers Sarah C. Woolley and Allison Doupe at the University of California, San Francisco decided to focus attention on the listening females, which have not been well studied in the past. In the study, Woolley and Doupe set up, a long cage with a sound speaker at each end. One broadcast the sound of a male zebra finch singing to himself, like someone singing in the shower. The other speaker broadcast a male performing for a female audience, as if he was giving a concert. Female birds were placed between the two speakers. Some of the birds had mates, others didn't. The females shifted around a bit, and then most of them hopped over to sit beside just one speaker. All the birds that made a clear choice liked songs meant for a female audience, even if they'd never met the male. Mated females also had a chance to listen to two different performance songs, one from an unknown male, and one from their mate. They spent more time listening to the concert version of their mates' songs. This suggests that after a while, females learn to recognize and prefer the songs of their mates. Scientists then studied the brains of the females. They found certain areas of the brain perked up when the birds listened to the concert songs. These brain areas may be involved in recognizing and evaluating the songs, and storing the memories of them. This research deals with what's called directed communication, when the communicator, or sender, focuses the message for a specific audience. One example is the way moms speak to their babies. Mothers around the world use the same sort of high-pitched sing-song chatter, and the babies respond best to those sounds. Songbirds are one of the only other species known to learn their communication, in this case their songs.

单选题The constant Ufriction/U of the wire on the metal pulley eventually caused it to break.

单选题His sole motive was to make her happy.

单选题Only people over 18 are eligible to vote.

单选题Since the Great Depression, the United States government has protected farmers from damaging drops in grain prices.

单选题Can You Hear This? When something creates a sound wave in a room or an auditorium, listeners hear the sound wave directly from the source. They also hear the reflections as the sound bounces off the walls, floor, and ceiling. These are called the reflected wave or reverberant (反射的) sound, which can be heard even after the sound is no longer coming from the source. The reverberation time of an auditorium is determined by the volume or interior size of the auditorium. It is also determined by how well or how poorly the walls, ceiling, floor, and contents of the room (including the people) absorb sound. There is no ideal reverberation time, because each use of an auditorium calls for different reverberation. Speech needs to be understood clearly; therefore rooms used for talking must have a short reverberation time. The full-sound performance of music such as Wagner operas or Mahler symphonies should have a long reverberation time. The light, rapid musical passages of Bach or Mozart need a reverberation time somewhere between. Acoustic problems often are caused by poor auditorium design. Smooth, curved reflecting surfaces create large reflections. Parallel (平行的) walls reflect sound back and forth, creating a rapid, repetitive pulsing effect. Large pillars (柱) and corners can cause acoustic shadows as the sound waves try to pass around the object. Some of these problems can be solved by using absorbers and reflectors to change the reverberation time of a room. For example, hanging large reflectors, called clouds, over the performers will allow some sound frequencies to reflect and others to pass to achieve a pleasing mixture of sound.

单选题It is highly unlikely that she will arrive today. A. probably B. very C. hardly D. possibly

单选题The excitement of hunting big game in Africa has been a lure to Europeans for 200 years.

单选题The last paragraph tells us, among other things, that