单选题In North Dakota, which had barely an inch of rain in four months, there was no grass for cattle. Farmers tramped their dusty fields, watching their dwarfed stand of grain shrivel and ______. A. survive B. wail C. perish D. swell

单选题Science analysts are worried that China, in the course of biotech development, ______.

单选题Water ______ into vapor by the sun falls as rain. A. turns B. turned C. turning D. is turned

单选题Based on the information in the passage, what can be inferred about X-ray microscopes in the future?

单选题 In the idealized version of how science is done, facts about the world are waiting to be observed and collected by objective researchers who use the scientific method to carry out their work. But in the everyday practice of science, discovery frequently follows an ambiguous and complicated route. We aim to be objective, but we cannot escape the context of our unique life experience. Prior knowledge and interest influence what we experience, what we think our experiences mean, and the subsequent actions we take. Opportunities for misinterpretation, error, and self-deception abound. Consequently, discovery claims should be thought of as proto science. Similar to newly staked mining claims, they are full of potential. But it takes collective scrutiny and acceptance to transform a discovery claim into a mature discovery. This is the credibility process; through which the individual researcher's me, here, now becomes the community's anyone, anywhere, anytime. Objective knowledge is the goal, not the starting point. Once a discovery claim becomes public, the discoverer receives intellectual credit. But, unlike with mining claims, the community takes control of what happens next. Within the complex social structure of the scientific community, researchers make discoveries; editors and reviewers act as gatekeepers by controlling the publication process; other scientists use the new finding to suit their own purposes; and finally, the public (including other scientists) receives the new discovery and possibly accompanying technology. As a discovery claim works it through the community, the interaction and confrontation between shared and competing beliefs about the science and the technology involved transforms an individual's discovery claim into the community's credible discovery. Two paradoxes exist throughout this credibility process. First, scientific work tends to focus on some aspect of prevailing Knowledge that is viewed as incomplete or incorrect. Little reward accompanies duplication and confirmation of what is already known and believed. The goal is new-search, not research. Not surprisingly, newly published discovery claims and credible discoveries that appear to be important and convincing will always be open to challenge and potential modification or refutation by future researchers. Second, novelty itself frequently provokes disbelief. Nobel Laureate and physiologist Albert Azent-Gyorgyi once described discovery as "seeing what everybody has seen and thinking what nobody has thought. " But thinking what nobody else has thought and telling others what they have missed may not change their views. Sometimes years are required for truly novel discovery claims to be accepted and appreciated. In the end, credibility " happens" to a discovery claim-a process that corresponds to what philosopher Annette Baier has described as the commons of the mind. "We reason together, challenge, revise, and complete each other's reasoning and each other's conceptions of reason. "

单选题Your kindness in giving ______ to the consideration of the above problem will be highly appreciated. A. importance B. advantage C. priority D. authority

单选题What sort of glass you drink from predicts how fast you drink. "Would you like that in a straight or a jug, sir?" was once a common response to Britishers" request for a pint in a pub. Like the Lilliputians in Gulliver"s Travels, who argued whether a boiled egg should be opened at the pointed or the rounded end, beer drinkers were adamant that only from their preferred shape of glass did their drinks taste best. Straight-sided glasses—sometimes with a bulge a little below the lip—have largely won the day. Jugs equipped with handles are now rare. But that is probably because straight glasses are easier for bar staff to collect and stack. The shape of a beer glass does, nevertheless, matter. For a group of researchers at the University of Bristol have shown that it can regulate how quickly someone drinks. Angela Attwood and her colleagues asked 160 undergraduates—80 women and 80 men—to do one of four things: drink beer out of a straight glass; drink beer out of a flute—a tall narrow wineglass; or drink lemonade from one of these two sorts of glass. To complicate matters further, some of the glasses were full whereas others were half-full. What Dr. Attwood and her team were really interested in was how quickly the various drinks would be drunk. The answer was that a full straight glass of beer was polished off in 11 minutes, on average. A full flute, by contrast, was finished off in seven, which was also the amount of time it took to drink a full glass of lemonade, regardless of the type of vessel. If a glass started half-full, however, neither its shape nor its contents mattered. It was drunk in an average of five minutes. Though beer flutes are not common in British pubs, her observation that the shape of a glass can affect how fast it is drunk from bears investigation. Both health campaigners and breweries would be interested in the results, though they would probably draw opposite conclusions about what is the best-shaped glass in which to serve a bevvy.

单选题At the wholesale store you can buy an 8-pack of hot dogs for $1.55, a 20-pack for $3.05, and a 250-pack for $22.95. What is the greatest number of hot dogs you can buy at this store with $200? A. 1,108 B. 2,100 C. 2,108 D. 2,124 E. 2,256

单选题The news says: An airline ______ kills more than 100 passengers.

单选题There was something wrong with the traffic signal. Our bus was ______ for nearly half an hour. A. held on B. held back C. held out D. held up

单选题The narrator of The Great Gatsby is ______.

单选题This Agreement shall be subject to the terms and conditions in the sales confirmation ______ by both parties hereto. A．signs B．signed C．signing D．to sign

单选题When two hands meet, we pass on something of ourselves. After (41) to Mark Twain, Helen—who was both deaf and blind—commented, "I can feel the twinkle of his eye (42) his handshake." In some indefinable way, Twain had (43) his charm to Keller. And that's probably been true of the handshake all the (44) back to its earliest days, (45) no one can tell its actual (46) . A common explanation is that (47) early man encountered a stranger, he (48) out his hand to show he had no weapon. From this, supposedly, (49) the handshake. "Not so", says historian Brian Burke. He believes, the handshake (50) "putting your blood behind your breath." He explains that ancient people (51) the spoken word alone, and they used the handclasp to signify that their (52) was backed up by the (53) of their heart—i.e., their blood. (54) , the handshake suggested trust. That (55) of trust has survived to this day. People in business often (56) agreements simply by declaring, "Let's shake (57) it." Perhaps the most (58) handshake took place on July 17, 1975, during the Apollo Soyuz get together in space. After the two crafts came together, American astronaut Thomas Stafford (59) the extended hand of Soviet cosmonaut Alexey Leonov. The (60) to the world was one of friendship and peace.

单选题Barbara ______ in doing it again though she had failed more than a dozen times.A. insisted B. persisted C. assisted D. consisted

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单选题It's an annual back-to-school routine. One morning you wave goodbye, and that (1) evening you're burning the late-night oil in sympathy. In the race to improve educational standards, (2) are throwing the books at kids. (3) elementary school students are complaining of homework (4) What's a well-meaning parent to do? "As hard as (5) may be, sit back and chill, experts advise. Though you've got to get them to do it, (6) helping too much, or even examining (7) too carefully, you may keep them (8) doing it by themselves. "I wouldn't advise a parent to cheek every (9) assignment," says psychologist John Rosemond, author of Ending the Tough Homework. "There's a (10) of appreciation for trial and error. Let your children (11) the grade they deserve." Many experts believe parents should gently look over the work of younger children and ask them to rethink their (12) . But "you don't want them to feel it has to be (13) ," she says. That's not to say parents should (14) homework—first, they should monitor how much homework their kids (15) . Thirty minutes a day in the early elementary years and an hour in (16) four, five, and six is standard, says Rosemond. For junior-high students it should be " (17) more than an hour and a half," and two for high-school students, If your child (18) has more homework than this, you may want to check (19) other parents and then talk to the teacher about (20) assignment.

单选题 {{B}}Questions 21—23 are based on a passage about cloning. You now have 15 seconds to read Questions 21—23.{{/B}}

单选题Women were involved in fighting the war for American independence in all of the following ways except as ______.

单选题Man: I'm still waiting for my sister to come back and type the application letter for me.Woman: Why bother her? I'll show you how to use the computer. It's quite easy.Question: What does the woman mean?

单选题Rigoberto Padilla, 21, came to the USA from Mexico when he was 6. He went to school in Chicago, joined the honor society and dreamed of becoming a lawyer-all while living here illegally. Padilla's status wasn't a problem until he applied for college and couldn't qualify for financial aid without a Social Security number, he says. In January, the University of Illinois-Chicago junior was charged with drunken driving. He pleaded guilty to a misdemeanor (轻罪), paid a fine and got court supervision, but that brought him to the attention of immigration officials and triggered deportation proceedings. "It was one mistake in my life," he says. Padilla's impending deportation, catapulted (猛投) him into a campaign to stop the deportation of college students and recent graduates. Lawmakers, students, members of the clergy and other acti-vists hope to buy the students time and use their stories to push for laws that would allow them, and perhaps millions of other illegal immigrants, to earn legal status, says Joshua Hoyt of the Illinois Coalition for Immigrant and Refugee Rights. Immigration and Customs Enforcement (ICE) agreed last week to delay Padilla's deportation for a year, making him one of at least seven young illegal immigrants who have had their deportations delayed since June, according to Dream Activist, one of the groups spearheading the campaign. Family ties and community standing are among the factors ICE considers when asked to delay a deportation, says ICE spokesman Richard Rocha. "I want to graduate college and give back to this country," Padilla says. His supporters flooded the Department of Homeland Security with thousands of faxes and designed a Facebook page telling 2 800 members how to help. The Chicago City Council passed a resolution in his behalf, and Rep. Jan Schakowsky, D-Ill. , introduced a bill specifically for him that would allow him to stay. "Why would we deprive ourselves of outstanding students and future leaders?" she asks. "They had no part in the decision to come here. " There are 12 million illegal immigrants in the USA. Activists call for an overhaul of immigration law that would offer them a way to earn legal status. Rep. Luis Gutierrez, Dill. , introduced a bill Tuesday that would give illegal immigrants who pay fines, pass background checks and meet other requirements a path toward legal residency. College students who are illegal immigrants fail under a separate proposal called the Development, Relief and Education for Alien Minors Act--the DREAM Act. Requirements would include arrival in the USA at 15 or younger, a five-year residency or more, and at least two years of college or military service. Versions of the act have been introduced since 2001 without success.