题目内容
（请给出正确答案）
A．Why species don't avoid extinction by adapting.
B．Why species become extinct at the rate they do.
C．Why humans aren't extinct.
D．How many species aren't extinct.
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______him do this job by himself？
A．Why not let
B．Why not to let
C．Why don't let
D．Why you not to let
A．why B．because C．that D．since
______him tomorrow？ It's too late now.
A．Why not to call on
B．Why don't call on
C．Why not calling on
D．Why not call on
Which of the following sentences expresses OFFER？
A．Why don"t you give him some apples？
B．Can you check the account book again for me？
C．Welcome. What can I do for you？
D．Is Mary going to Australia next week？
"One of the most common house ant species might have been built for living in some of the smallest spaces in a forest, but the ants have found ways to take advantage of the comforts of city living," Purdue University said in a statement. Grzegorz Buczkowski, a Purdue University research assistant professor of entomology, discovered odorous house ants live in supercolonies, creating complex networks entomologists have never seen with the species before now. He found that odorous house ant colonies become larger and more complex as they move from forest to city and act somewhat like an invasive species, the university said. "The ants live about 50 to a colony with one queen in forest settings but explode into supercolonies with more than 6 million workers and 50 000 queens in urban areas," the university explained.
"This is a native species that's doing this," said Buczkowski, whose results are published in the early online version of the journal Biological Invasions. "Native ants are not supposed to become invasive. We don't know of any other native ants that are outcompeting other species of native ants like these," Buczkowski said. Odorous house ants live in hollow acorn shells in the forest. They're called odorous because they have a coconut (椰子)-or rum-like smell when crushed. They're considered one of the most common house ants, Purdue said. In semi-natural areas that are a cross of forest and urban areas, such as a park, Buczkowski said he observed colonies of about 500 workers with a single queen. "It's possible that as the ants get closer to urban areas they have easier access to food, shelter and other resources," he said.
"In the forest, they have to compete for food and nesting sites," Buczkowski said. "In the cities, they don't have that competition. People give them a place to nest, food to eat. " Buczkowski observed the ants in three different settings on and around the Purdue campus. He said it might be expected that if the odorous house ants were able to multiply into complex colonies, other ants would do the same. But Buczkowski found no evidence that other ants had adapted to new environments and evolved into larger groups as the odorous house ants have, Purdie said. "It's possible that odorous house ants are better adapted to city environments than other ant species or that they had somehow outcompeted or dominated other species," he said. "This raises a lot of questions we'd like to answer. " Buczkowski said understanding why the supercolonies form. could lead to better control of the pests in homes, as well as ensuring that they don't outcompete beneficial species.
Future studies on odorous house ants will include studying the ant's genetics and trying to understand the effects of urbanization of odorous house ants, Purdue said.
The word "accommodating" (Line 1, Paragraph 1) is closest in meaning to " ______".
A．helpful
B．easy-going
C．spacious
D．easy to adapt to (a new place)
1、In prehistoric times people____.
A、ate much more than we do today
B、lived mainly on plant food
C、had a wide-ranging diet
D、were more fussy about what they ate
2、Most of us have come to expect____.
A、no variation in our diet
B、a reduction in food supplies
C、a specialist diet
D、food conforming to a set standard
3、The specialization of food was started by____.
A、the emergence of supermarkets
B、the rise of agriculture
C、the rich countries
D、the modern shops
4、According to the passage, people in the West today survive on____.
A、carrots and tomatoes
B、several thousand types of plants and cereals
C、a very small number of cultivated foods
D、special species planted one thousand years ago
5、The conclusion seems to be that we____.
A、could make use of more natural species
B、don't cultivate the right kind of food
C、produce more food than we need
D、cultivate too many different species
This passage talks mainly about
A．why the umbrella was so popular in Europe
B．when and how the umbrella was invented
C．the history and the use of umbrella
D．the development of the umbrella
1.According to the passage, Chinglish is regarded as useful by ______.
A.some western scholars
B.English-speaking travelers
C.Chinese high-school teachers
D.Chinese parents in English-speaking countries
2. The second paragraph mainly discusses ______.
A.why Chinglish became popular
B.how Chinglish came into being
C.who invented the term “Chinglish”
D.where Chinglish was most popular
3.According to Jonathan Spencer, Pidgin English serves to ______.
A.force Chinese villagers to learn English
B.overcome language difficulties in business
C.help peoples communicate with each other
D.enlarge the vocabulary of the Chinese language
4. According to the passage, Yangjingbang (Line 11, Paragraph 2) is ______.
A.a kind of Chinglish
B.an influential language
C.a mix of any two languages
D.a language in Lu Xun’s time
5.The author’s attitude towards Chinglish can be described as ______.
A.critical
B.objective
C.emotional
D.supportive
There is an element of hypocrisy to much of the anti-cloning furor, or if not hypocrisy, superstition. The fact is we axe already well down the path leading to genetic manipulation of the creepiest sort. Life-forms can be patented, which means they can be bought and sold and potentially traded on the commodities markets. Human embryos are life-forms, and there is nothing to stop anyone from marketing them now, on the same shelf with the Cabbage Patch dolls.
In fact, any culture that encourages in vitro fertilization has no right to complain about a market in embryos. The assumption behind the in vitro industry is that some people's genetic material is worth more than others' and deserves to be reproduced at any expense. Millions of low-income babies die every year from preventable ills like dysentery, while heroic efforts go into maintaining yuppie zygotes in test tubes at the unicellular stage. This is the dread "nightmare" of eugenics in familiar, marketplace form—which involves breeding the best-paid instead of the best. Cloning technology is an almost inevitable byproduct of in vitro fertilization. Once you decide to go to the trouble of in vitro, with its potentially hazardous megadoses of hormones for the female partner and various indignities for the male, you might as well make a few backup copies of any viable embryo that's produced. And once you've got the backup organ copies, why not keep a few in the freezer, in case Junior ever needs a new kidney or cornea？
The critics of cloning say we should know what we're getting into, with all its Orwellian implications. But if we decide to outlaw cloning, we should understand the implications of that. We would be saying in effect that we prefer to leave genetic destiny to the crap shooting of nature, despite sickle-cell anemia and Tay-Sachs and all the rest, because ultimately we don't trust the market to regulate life itself. And this may be the hardest thing of all to acknowledge, that it isn't so much 21st century technology we fear, as what will happen to that technology in the hands of old-fashioned 20th century capitalism.
We learn from the first paragraph that
A．nonreligious folks received cloning with open arms.
B．the scientist was encouraged to popularize his ideas;
C．some people moved strongly against cloning technique.
D．a technician was condemned and sentenced to death.
Part A
Directions: Read the following four texts. Answer the questions below each text by choosing A, B, C or D. (40 points)
Sharks have gained an unfair reputation for being fierce predators of large sea animals. Humanity's unfounded fear and hatred of these ancient creatures is leading to a worldwide slaughter that may result in the extinction of many larger, coastal shark species. The shark is the victim of a warped attitude of wildlife protection: we strive only to protect the beautiful, nonthreatening parts of our environment. And, in our efforts to restore only nonthreatening parts of our earth, we ignore other important parts.
A perfect illustration of this attitude is the contrasting attitude towards another large sea animal, the dolphin. During the 1980s, environmentalists in the U.S.A. protested the use of driftnets for tuna fishing in the Pacific Ocean since these nets also caught dolphins. The environmentalists generated enough political and economic pressure to prevent tuna companies from buying tuna that had been caught in driftnets. In contrast to this effort, the populations of sharks in the Pacific Ocean have decreased to the point of extinction and there has been very little effort by the same environmentalists to save this important species, of marine wildlife. Sharks are among the oldest creatures on earth, having survived in the seas for more than 350 million years. They are extremely efficient animals, feeding on wounded or dying animals, thus performing an important role in nature of weeding out the weaker animals in a species. Just the fact that species such as the Great White Shark have managed to live in the oceans for so many millions of years is enough proof of their efficiency and adaptability to changing environments. It is time for humans, who may not survive another 1000 years at the rate they are damaging the planet, to east away their fears and begin considering the protection of sharks as creatures that may provide us insight into our own survival.
The main focus of this passage is ______.
A．why sharks have such a bad reputation
B．how sharks become some of the oldest creatures on earth
C．how sharks illustrate a problem in wildlife protection
D．why the campaign to save dolphins was not extended to save sharks
