Every book should have a(n)______ which tells us on what page certain information will be found.

Alzheimer's disease has no cure. There are, however, five drugs—known and approved—that can slow down the development of its symptoms. The earlier such drugs are administered, the better. Unfortunately, the disease is usually first noticed when people complain to their doctors of memory problems. That is normally too late for the drugs to do much good. A simple and reliable test for Alzheimer's that can be administered to everybody over the age of about 65, before memory-loss sets in, would therefore be useful. Theo Luider, of the Erasmus University Medical Centre in Rotterdam, and his colleagues think they have found one—but it works only in women. They made their discovery, just reported in the Journal of Proteome Research, by tapping into a long-term, continuing study that started in 1995 with 1, 077 non-demented and otherwise healthy people aged between 60 and 90. At the beginning of the project, and subsequently during the periods 1997-99 and 2002-04, participants were brought in for a battery of neurological(神经学的)and cognitive investigations, physical examinations, brain imaging and blood tests. During the first ten years of the study, 43 of the volunteers developed Alzheimer's disease. When Dr. Luider compared blood samples from these people with samples from 43 of their fellow volunteers, matched for sex and age, who had remained Alzheimer's-free, he found something startling. Levels of a substance called pregnancy zone protein had been unusually high, even before their symptoms appeared, in some of those who went on to develop Alzheimer's disease. Those "some" , it turned out, were all women. On average, levels of pregnancy zone protein in those women who went on to develop Alzheimer's were almost 60% higher than those of women who did not. In men, levels of the protein were the same for both. The reason for this curious result seems to be that the brain plaques(斑块)associated with Alzheimer's disease are themselves turning out pregnancy zone protein. Certainly, when Dr. Luider applied a chemical stain specific to that protein to the plaques of dead Alzheimer's patients he found the protein present in them. Confusingly, though, it was there in the plaques of both sexes. Presumably, female cells(and therefore the plaques of female brains)make more of it than male cells do. But that remains to be proved. Whatever the reason, however, this result means that women, at least, may soon be able to tell whether and when they are at risk of Alzheimer's—and thus do something about it before they start losing their minds.

If only I ______ play the guitar as well as you![2006]

_____at in his way, the situation does not seem so desperate.(2007)

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You can ______ your muscles more powerfully by linking up your breathing to the exercise.

Mr. and Mrs. Smith are quite satisfied with ______ that can withstand kicks and blows.

Scientists hope the successful work done in collaboration with other researchers may be _____ elsewhere.

Now many parents are sending their sons and daughters to single-sex schools believing that the educational environment fostered by a single gender is more conducive to learning than a co-educational school. Is it really the case? The following are the supporters' and opponents' opinions. Read carefully the opinions from both sides and write your response in NO LESS THAN 200 words, in which you should first summarize briefly the opinions from both sides and give your view on the issue. Marks will be awarded for content relevance, content sufficiency, organization and language quality. Failure to follow the above instructions may result in a loss of marks.YES Boys and girls distract each other from their education, especially in adolescence as their sexual and emotional sides develop. Too much time can be spent attempting to impress or even sexually harassing each other. Academic competition between the sexes is unhealthy and only adds to unhappiness and anxiety among weaker students. As Tricia Kelleher, a school principal, argues, "rather than girls defining themselves by their interests, they define themselves by what the boys think of them or what other girls think boys think of them". Furthermore, John Silber, President of Boston University, declared that his university would prioritize male applications in order to even up the student composition and ensure the male population did not become "ungentlemanly" towards women due to their numerical inferiority. A single-sex environment is therefore a space where children can learn without feeling pressurized by the other sex.NO In fact boys and girls are a good influence on each other, engendering good behavior and maturity—particularly as teenage girls usually exhibit greater responsibility than boys of the same age. Academic competition between the sexes is a spur to better performance at school. Any negative effects of co-educational schools have been explained away by studies as the result of other factors, such as "classroom size, economic discrepancies and cultural differences". Furthermore, the separation of boys and girls only serves to embrace sexual objectification, for they exist for each other only as dates rather than the classmates they would be in a co-educational environment. Allowing them into the same educational environment, in part to permit them to distract each other, is a welcome social development as well as a beneficial learning curve.

{{B}}PART II LISTENING COMPREHENSION{{/B}}

Which of the following underlined parts indicates a subject-verb relation?

Not only ______ the gift, he also severely criticized the sender.

Mrs. Robson invited us to dinner after_____.

Conservative commentator Charles Krauthammer's new book is flying off the shelves—and nobody knows exactly why. Sitting atop the New York Times nonfiction bestseller list for two months now, the conservative Washington Post columnist's Things That Matter: Three Decades of Passions, Pastimes and Politics, a collection of his writings, is not the kind of fiery, rash conservative commentary that generally climbs to the top of the bestsellers' lists. And yet, the collection has sold enough to make publicists and pundits(时事评论员，)alike scratch their heads. It is, as conservative publisher Adam Bellow told Newsweek, "a phenomenon". Published October 22 by Crown Forum, a Random House imprint that specializes in conservative authors, it first hit the Times bestseller list in November. Within two weeks, it had surpassed the latest works of conservatives Glenn Beck and Fox News's Bill O'Reilly and Brian Kilmeade to climb to No. 1. And there it remains. It ranks No. 8 on Amazon's list of best-selling books of 2013. According Nielsen, the book has sold 601, 000 hardcover copies in the United States alone. Crown says Things That Matter is in its 18th printing, with 970, 000 copies in print. "Was I surprised? I was surprised, " said Bellow, who runs HarperCollins's conservative imprint Broadside Books. "The collective wisdom in publishing is that anthology(选集)collections don't sell. " The Krauthammer compendium(概略)appears to be surfing a particularly vicious wave. The conservative publishing industry has flourished in recent years and books by conservative authors routinely make the bestsellers' lists. But few books sell as many as Krauthammer's, particularly anthologies of previously published work. "Anything at that level is largely serendipitous, " Bellow said. Success, it seems, begets even more success. "Once a book becomes number one on the best seller list, it functions as a form of advertising, " Bellow explained. " More copies are stocked at Barnes & Noble. When consumers walk into the store, they see big piles of them and, like in some experiment created by B. F. Skinner(the American psychologist who argued that free will is an illusion), they reach out and buy it." But when you get to the heady level Krauthammer has reached, it begins to look as if it is far more than just the marketing machine at work. And there are almost as many theories about Krauthammer's success as books sold. How you feel about the book's popularity largely depends on how you view the author. To many, Krauthammer is a thinking conservative, in contrast to the bluster of the modern-day Tea Party and quick-fire figures like Rush Limbaugh and Glenn Beck. To those who are trying to make sense of the rise of the conservative movement, Krauthammer's success is a triumph for temperate, smart conservatism. Americans thirsty for a subtle, intellectual debate are buying his book in droves.

The website is _______ closed for maintenance.

Which of the following italicized phrases is INCORRECT?

PASSAGE ONEWhat is the author's occupation according to the passage?

It is due to the invention of the computer that man has been able to work so many wonders in the past few years. A case _____ is the successful launching of space shuttle.

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