单选题Most students______their jobs by the end of July.

单选题 Directions: For this part, you are allowed 30 minutes to write a short essay entitled Be a Civic-minded Tourist. You should include in your essay tourists' uncivil behaviors in the scenic spots and the corresponding solutions. You should write at least 120 words but no more than 180 words. Be a Civic-minded Tourist

单选题 Musicians-from karaoke singers to professional violin players-are better able to hear targeted sounds in a noisy environment, according to new research that adds to evidence that music makes the brain work better. 'In the past ten years there's been an explosion of research on music and the brain,' Aniruddh Patel, the Esther J. Burnham Senior Fellow at the Neurosciences Institute in San Diego, said today at a press briefing. Most recently brain-imaging studies have shown that music activates many diverse parts of the brain, including an overlap in where the brain processes music and language. Language is a natural aspect to consider in looking at how music affects the brain. Patel said. Like music, language is 'universal, there's a strong learning component, and it carries complex meanings.' For example, brains of people exposed to even casual musical training have an enhanced ability to generate the brain wave patterns associated with specific sounds, be they musical or spoken, said study leader Nina Kraus, director of the Auditory Neuroscience Laboratory at Northwestern University in Illinois. Kraus' previous research had shown that when a person listens to a sound, the brain wave recorded in response is physically the same as the sound wave itself. In fact 'playing' the brain wave produces a nearly identical sound. But for people without a trained ear for music, the ability to make these patterns decreases as background noise increases, experiments show. Musicians, by contrast, have subconsciously trained their brains to better recognize selective sound patterns, even as background noise goes up. At the same time, people with certain developmental disorders, such as dyslexia (阅读障碍症), have a harder time hearing sounds amid the noise-a serious problem, for example, for students straining to hear the teacher in a noisy classroom. Musical experience could therefore be a key therapy for children with dyslexia and similar languagerelated disorders, Kraus said. In a similar vein, Harvard Medical School neuroscientist Gottfried Schlaug has found that stroke patients who have lost the ability to speak can be trained to say hundreds of phrases by singing them first. In his research, Schlaug demonstrated the results of intensive musical therapy on patients with lesions (损伤) on the left sides of their brains, those areas most associated with language. Before the therapy, these stroke patients responded to questions with largely incoherent sounds and phrases. But after just a few minutes with therapists, who asked them to sing phrases and tap their hands to the rhythm, the patients could sing 'Happy Birthday,' recite their addresses, and communicate if they were thirsty. 'The underdeveloped systems on the right side of the brain that respond to music became enhanced and changed structures,' Schlaug said. Overall, Schlaug said, the experiments show that ''music might be an alternative medium for engaging parts of the brain that are otherwise not engaged. '

单选题下面的短文后列出了10个句子，请根据短文的内容对每个句子作出判断：如果该句提供的是正确信息，选择A；如果该句提供的是错误信息，选择B；如果该句的信息文中没有提及，选择C。在答题卡相应位置上将答案选项涂黑。Setting Effective Goals　　Avital Schweitzer, 17, is clearly goal directed.She works hard to achieve

单选题This album is ______ as it was the only one ever signed by the President.

单选题We"ve______salt. Ask Mrs. Jones to lend us some.

单选题Agriculture was a step in human progress ______ which subsequently there was not anything comparable until our own machine age. A. in B. for C. to D. from

单选题 Do You Use Your Cell Phone a Lot? Too much time spent on your cell phone doesn't mean you're more connected and happier. A new research from scientists at Kent State University in Kent, Ohio shows that the more time college students spend on their ceil phones, the more 28 they are and the more their academic performance will 29 . Jacob Barkley, Aryn Karpinski and Andrew Lepp studied 500 Kent State University students, each of whom reported their daily cell phone use for the year as well as their level of anxiety and 30 with their life. At the end of the year, the students also 31 the researchers to see their official school records for their cumulative (累积的) grade point average (GPA). Not only was greater cell phone use 32 correlated (相关的) with satisfaction and happiness, it was also associated with lower GPAs—presumably because the students were more anxious and unable to 33 on their studies. While 34 researches found that cell phones can improve social interaction and reduce feelings of isolation, the latest findings suggest that constant 35 to information and people may be a double-edged-sword. The researchers speculate, for example, that students may feel anxious if they feel obligated (有义务的) to be in constant 36 with their friends. Some may have difficulty disconnecting, which only feeds into the stress linked to their phones. Occasional episodes of solitude can be 37 for well-being, but students who are tied to their phones aren't getting these respites (暂缓). A. access E. intense I. preferred M. suffer B. anxious F. negatively J. previous N. touch C. concentrate G. objectively K. relation O. vital D. depend H. permitted L. satisfaction

单选题If something ____________ your skin, it cuts it badly and deeply. A. lacerate B. demolish C. scud D. shrink

单选题 In recent years much more emphasis has been put ______ developing the students' productive skills.

单选题It is generally believed that the digital divide is something

单选题Woman: Do you mind closing the door? Our next door neighbors are making so much noise. Man: Do I mind? I'd be happy to. Question: What does the man mean? A. He's not bothered by the noise. B. He's happy to close the door as the woman asks him to do. C. He prefers to leave the door open. D. He's happy to talk to their neighbors.

单选题Speaker A: It took me ten years to build up my business, and it almost killed me.Speaker B: Well, you know what they say: ______. A. There is no smoke without fire. B. Practice makes perfect. C. All roads lead to Rome. D. No pains, no gains.

单选题Potentially offering a powerful new tool against terrorism, researchers have found a novel way to detect deception: in the liar"s blushing face. The technique, described in the journal, Nature, uses a thermal camera to detect sudden, involuntary shifts of blood flow in the face. The system performed as accurately as a traditional polygraph, the scientists report. Yet the camera can provide answers instantly, and does not require a highly trained specialist to operate it or interpret its results. This makes it far better suited than the polygraph for a new, high-tech approach to security that is already raising the hackles of civil libertarians: the screening of large numbers of citizens, at airports and other sensitive areas, who have done nothing wrong. "The next decade is going to see the development of truly accurate lie detectors," said Stephen M. Kosslyn, an expert on detecting lies and a professor of psychology at Harvard University. The prototype, built by researchers at the Mayo Clinic and Honeywell Laboratories in Minnesota, is at least 2 years from being ready for general use. But other scientists said the discovery of previously unknown physiological changes in the face was itself an important step forward. "This is potentially very important work, which may open a new window on the mind," said Kosslyn. Pushed by technological advances, and with fresh interest, since Sept. 11, the discovery is part of a boom in the scientific study of deceit and its detection. Although the lie remains a mysterious phenomenon, researchers in recent years have found a number of new approaches that might replace the polygraph, from brain scans, to subtle changes in eye movement, to sparks of electrical activity that signal a person has seen a victim or a crime scene before. The new finding, though, is remarkable for its simplicity. When a person tells a lie, the team found, there is a sudden rush of blood to the area around the eyes, according to the Mayo Clinic"s Dr. James A. Levine. Although the change is not: ordinarily visible, the blood warms the skin, causing hands of color to appear through a camera sensitive to heat. The team devised a computer program that can identify the telltale changes based on the camera images. In testing at the US Department of Defense Polygraph Institute, which trains federal polygraph examiners, the device performed better than polygraphs, with 85 percent accuracy compared with 70 percent for the polygraph.

单选题If I didn't ______ them ______ I should probably forget all about them.

单选题The word "lopsided" (Paragraph 4) most probably means ______.

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单选题The Professor sprang to his feet, ______a hand to his rosy, bald head.

单选题He studies so hard to avoid ______ at the bottom of the class.