填空题Words are divided into simple, compound and derived words on the ________ level

填空题People thought: Hey, eat a carp and you will be taking in (what) it is that gives you these (fish) their long (life-span). Of course, it (hasn't) done a lot of good for these carp.A. whatB. fishC. life-spanD. hasn't done

填空题We should do everything possible to clear up the many ______ (understand) between us.

填空题Older people must be given more chances to learn if they are to contribute to society rather than be a financial burden,according to a new study on population published recently

填空题classify purify justify intensify terrify glorify identify exemplify

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填空题The U.S. space agency, NASA, is planning to launch a satellite that scientists hope will answer fundamental questions about the origin and destiny of our universe. (41) __________. The prevailing theory of the universe's origin, the "Big Bang" theory, says all matter and energy were once compressed into a tiny point. The density and resulting temperature were so enormous that, about 13-to-15-billion years ago by current estimates, a mighty explosion flung the matter hurtling outward in all directions. (42) __________.They also ask, is the expansion accelerating? Will the universe collapse? What is its shape? Scientists will seek explanations with NASA's new Microwave Anisotropy Probe, abbreviated as MAP. (43) __________."MAP will take the ultimate baby picture, an image of the infant universe taken in the fossil light that is still present from the Big Bang," he says. "This glow, this radiation, is the oldest light in the universe. Imprinted on this background, physicists knew, would be the secrets of the Big Bang itself." This background radiation is the light and heat that the early cosmic soup of matter emitted. Once roiling hot, it has cooled over the eons to just a few degrees above absolute zero. It was once thought to be distributed evenly. But in 1992, a highly sensitive NASA satellite named COBE detected nearly imperceptible variations in temperature as tiny as 30- millionths of a degree. (44) __________."These patterns result from tiny concentrations that were in the very early universe that were the seeds that grew to become the stars and the galaxies that we see today," he says. "The tiny patterns in the light hold the keys for understanding the history, the content, the shape, and the ultimate fate of our universe." (45) __________. Princeton University scientist David Spergel says MAP Will give us a much more accurate matter count than we have now. "Right now, we want to measure something like the matter-density of the universe," he says. "Today, we can estimate that to a factor of two. That's pretty good. What we want to do is be able to measure it to about the three-percent level, which is what MAP will be capable of doing." To do its job, the $145 million MAP spacecraft will settle into an orbit 1. 5 million kilometers from the Earth. This is where the Earth's and Sun's gravitational pull are equal, and well past the range of the Earth's own obscuring microwave radiation. While the older COBE satellite measured just a small part of the sky, Chalrles Bennett says MAP will scan the entire sky at 1,000 times better resolution. "The patterns that MAP measures are extremely difficult to measure," he says, "MAP will be measuring millionths of a degree temperature accuracies, and that's hard to do. That's like measuring the difference between two cups of sand to the accuracy of a single grain of sand."[A] The principal NASA scientist for the New MAP spacecraft, Charles Bennett, says the heat patterns represent slight differences in the density of the young universe, where denser regions evolved into the present web of structures.[B] NASA says the first results from the MAP mission will be ready in about 18 months after launch.[C] The spacecraft will orbit the Earth seeking answers from an extremely faint glow of microwaves that have existed since the beginning of time.[D] Scientists are trying to learn how it clumped together to produce stars, clusters of stars called galaxies, and clusters of galaxies.[E] Astronomers are reporting evidence that points to a massive star-eating black hole at the center of our Milky Way galaxy.[F] One of those keys is the amount of matter and its density. More matter with a higher density me, fins mole gravitational pull, suggesting a slowing of the universe's expansion, and perhaps even its collapse.[G] The head of NASA's Evolution of the Universe program, Alan Bunner, says MAP will measure what is thought a remnant of the Big Bang--an afterglow of microwaves bathing the universe that was emitted by the ancient cosmic matter.

填空题All the lights are on , the Smiths must get up .

填空题That actor was almost ______ (know) before he played that part.

填空题It was his self-confidence that______ (able) him to become a competent engineer.

填空题Many international students suffer from culture shock after they arrive in a foreign country; it usually takes them about three months to ______ the new life.

填空题Experts have long known that children imitate many of the deeds—good and bad—that they see on television. But it has rarely been shown that changing a young child"s viewing habits at home can lead to improved behavior. In a study published Monday in the journal Pediatrics, researchers reported the results of a program designed to limit the exposure of preschool children to violence-laden videos and television shows and increase their time with educational programming that encourages empathy. They found that the experiment reduced the children"s aggression toward others, compared with a group of children who were allowed to watch whatever they wanted. "Here we have an experiment that proposes a potential solution," said Thomas Robinson, a professor of pediatrics at Stanford, who was not involved in the study. "Giving this intervention—exposing kids to less adult television, less aggression on television and more prosocial television—will have an effect on behavior." While the research showed "a small to moderate effect" on the preschoolers" behavior, he added, the broader public health impact could be "very meaningful." The new study was a randomized trial, rare in research on the effects of media on children. The researchers, at Seattle Children"s Research Institute and the University of Washington, divided 565 parents of children ages 3 to 5 into two groups. Both were told to track their children"s media consumption in a diary that the researchers assessed for violent, didactic and prosocial content, which they defined as showing empathy, helping others and resolving disputes without violence. The control group was given advice only on better dietary habits for children. The second group of parents were sent program guides highlighting positive shows for young children. They also received newsletters encouraging parents to watch television with their children and ask questions during the shows about the best ways to deal with conflict. The parents also received monthly phone calls from the researchers, who helped them set television-watching goals for their preschoolers. The researchers surveyed the parents at six months and again after a year about their children"s social behavior. After six months, parents in the group receiving advice about television-watching said their children were somewhat less aggressive with others, compared with those in the control group. The children who watched less violent shows also scored higher on measures of social competence, a difference that persisted after one year. Low-income boys showed the most improvement, though the researchers could not say why. Total viewing time did not differ between the two groups. "The key message for parents is it"s not just about turning off the TV; it"s about changing the channel," said Dr. Dimitri Christakis, the lead author of the study and a professor of pediatrics at the University of Washington. The new study has limitations, experts noted. Data on both the children"s television habits and their behavior was reported by their parents, who may not be objective. And the study focused only on media content in the home, although some preschool-aged children are exposed to programming elsewhere. A. their children behaved less aggressively. B. their children are more aggressive than others. C. children show less violent actions after they watch less aggressive TV programs. D. they had better turn off the TV. E. they were not only sent program guides about positive shows for children but also received newsletters telling them how to deal with conflict. F. they should move to another channel. G. parents may be somewhat subjective.

填空题Mother is much better now, thank you, she's able to get______a bit more.

填空题The restaurant has been ______ sale by its owner.

填空题The weight of a body ______ with latitude and altitude, its mass does not. (variable)

填空题There (is) much in our life (which) we do not control (and we are) not even responsible (for). A. is B. which C. and we are D. for

填空题While attempted to reach his home before the storm, John had an accident on his bicycle.

填空题________refers to the sense relation between a more general, more inclusive word and a more specific word

填空题What is the result of the "new form of discrimination" (Line 5, Para 4)?

填空题My teacher is talking with an European student, who comes from Germany .