单选题A.500million.B.600million.C.700million.D.800million.

单选题Questions 5 to 7 are based on the news report you have just heard.

单选题 {{B}}Questions 19 to 22 are based on the conversation you have just heard.{{/B}}

单选题The ______ of some industries depends on lots of advertisements.

单选题This store has an excellent______ for fair dealing.

单选题 BQuestions 23 to 25 are based on the conversation you have just heard./B

单选题 Getting up earlier than usual or sleeping a couple of hours late can have a significant effect on your mood, according to research published in 1997. When the body's internal clock, or circadian (生理节奏的) rhythm, gets {{U}}(67) {{/U}} of accord with your sleep-wake {{U}}(68) {{/U}}, you can be left {{U}}(69) {{/U}} out of sorts. Researchers have long known that moods vary along {{U}}(70) {{/U}} fluctuations in functions regulated by the body's {{U}}(71) {{/U}} 24-hour cycle rhythm, such as body temperature and hormone levels. The {{U}}(72) {{/U}} of time a person has been awake is also known to {{U}}(73) {{/U}} mood. To tease apart the two effects, U.S. and U.K. researchers {{U}}(74) {{/U}} 24 healthy volunteers to live in {{U}}(75) {{/U}} chambers for approximately three to five weeks and {{U}}(76) {{/U}} their sleep-wake cycles to {{U}}(77) {{/U}} a 30-hour or a 28-hour day, {{U}}(78) {{/U}} than the 24-hour schedule {{U}}(79) {{/U}} by the rotation of the Earth. Circadian rhythms, which are innate, remained {{U}}(80) {{/U}}. While the subjects were awake, their mood was assessed {{U}}(81) {{/U}} regular intervals. The volunteers reported the {{U}}(82) {{/U}} moods when their circadian rhythms were most out of line with their sleeping cycle. This {{U}}(83) {{/U}} roughly to a schedule of sleeping during the day, from 2 P.M. to 10 P.M. Scores for mood were highest when the volunteers wake {{U}}(84) {{/U}} between 6 A.M. and 2 P.M. The research may help explain the anxiety and {{U}}(85) {{/U}} often reported by people who work night {{U}}(86) {{/U}} and may suggest ways to manipulate mood.

单选题 {{B}}Questions 29 to 31 are based on the passage you have just heard.{{/B}}

单选题Questions 19 to 21 are based on the conversation you have just heard.

单选题Which of the following may be a most appropriate title for the passage?

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单选题What does the word "rebuking" in the last two paragraph mean?

单选题[A] valid [C] various[B] enormous [D] proper

单选题In Britain and other countries, young people sometimes take a "gap year", a year off between high school and college. This idea never gained a big following in the United States. Recent news reports have suggested that interest may be growing, though there are no official numbers. Charles Deacon is the dean of admissions at Georgetown University in Washington. D.C. He estimates that in the current first-year class of 1,600 students, only about twenty-five decided to take a year off. He says this number has not changed much over the years. Mr. Deacon says the most common reason is to have a chance to travel. But he says international students may take a gap year to meet requirements at home for military duty. Some high school graduates see a year off as a chance to recover after twelve years of required education. But it can also give students a chance to explore their interests. Students who think they want to be doctors, for example, could learn about the profession by volunteering in a hospital for a year. Many colleges and universities support gap-year projects by permitting students to delay their admission. Experts say students can grow emotionally and intellectually as they work at something they enjoy. The Harvard admissions office has an essay on its website called "Time Out or Burn Out for the Next Generation." It praises the idea of taking time off to step back, think and enjoy gaining life experiences outside the pressure of studies. It also notes that students are sometimes admitted to Harvard or other colleges in part because they did something unusual with that time. Of course, a gap year is not for everyone. Students might miss their friends who go on directly to college. And parents might worry that their children will decide not to go to college once they take time off. Another concern is money. A year off, away from home, can be costly.

单选题Which of the following could replace the phrase "preside over" in the first sentence of the second paragraph?

单选题Only teachers and postgraduates have ______ to the rare or the latest books in the library.

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单选题When Mr. Makin got the suitcase contained the negatives, he felt ______.