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阅读下面的短文，文中有15处空白，每处空白给出4个选项，请根据短文的内容从4个选项中选择1个最佳答案。 Plants still give us our oxygen. If every plant (51) , you’ll die too. Without plants, you can’ t breathe. But you also need energy. You need it to breathe and to move. In fact, you need (52) to live. Some of the first living things couldn’t (53) their own energy. They needed the energy of sunlight, but they couldn’t make it themselves. (54) could they get it There was only one answer at the (55) . That is still true today. Animals still have to get their energy from. plants. Plants keep you (56) . Sometimes we eat the plants (57) . But sometimes an animal eats the plants (58) , then we eat the animal. Apples and oranges grow on trees—plants. Bread comes from plants in a (59) . We get eggs from birds, but the birds eat plants. (Or they eat insects, and the insects have eaten plants. ) We can eat (60) from a deer, but the deer has eaten plants. We eat (61) , and the fish has already eaten plants. (Or it ate other fish—and they ate plants. ) We don’ t eat (62) , but we drink milk. And the cow has eaten the grass for us. Every part of your food comes from plants. When you eat part of an animal, ask yourself, what did this animal eat If it ate other animals, ask yourself, what did they eat You will always (63) a plant. So what is really keeping you alive The green plants of the world are catching sunlight for you. You are using the energy from our own (64) . You are (65) the sun.
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阅读下面这篇短文，短文后有2项测试任务：(1)第23～26题要求从所给的6个选项中为规定段每段选择1个正确的小标题；(2)第27～30题要求从所给的6个选项中选择4个正确选项，分别完成每个句子。 A new drug shows hope of conquering a form of leukemia by targeting the misbehaving cells two summers ago Douglas Jenson was so wiped out from battling chronic myelogenous(骨髓性的) leukemia(白血病) (CML) that he could do little more than sit by his window; watching the numbers on a thermometer rise and fall with the sun. Today thanks to an experimental drug called STI571 (brand name: Glivec), Jenson 67, is biking in Oregon and planning a trip to the Caribbean. "I feel wonderful," he says.2. So do his doctors. STI571, a "smart bomb" drug that targets leukemia cells without harming healthy ions, first made headlines last year when researchers announced that white blood counts had returned to normal in 31 out of 31 patients who had taken the pill. Last week scientists were hack reporting new data on just over 1000 patients. In one trial, more than 90 % of 532 people on the drug saw counts return to normal. And under microscopic examination, 28 percent showed no evidence of cancer left in their bone marrow.3. The drug even helped, although not as dramatically, some patients in the final "blast" phase of the disease, when survival is measured in months. STI571"has ignited the cancer-research field", says Dr Brian Druker, an Oregan Health Sciences University researcher who developed the drug with manufacturer Novartis.4. CML, diagnosed in 5100 Americans every year, is triggered when two chromosomes swap fragments of genetic information. CML starts with the mistaken swap of genes between two chromosomes. The resulting "Philadelphia chromosome" produces the mutant Bcr-Abl protein. Bcr-Abl transfers a phosphate from the chemical messenger ATP to other proteins. They initiate a flawed signal to white blood cells to replicate incessantly.5. STI571 returns blood counts back to normal for those patients with chronic myelogenous leukemia(CML) in a "smart bomb way" by targeting the protein that sends the message to make the white blood cells. Bone marrow transplants can work extremely well, but they’ re applicable only for a minority of patients; otherwise, standard treatment is the injectable drug interferon. Many patients, however, cannot tolerate the adverse effects, which include severe fatigue, weight loss and depression. The new pill works by deactivating the cancer cells’ growth signal. Side effects- nausea, eye puffiness, muscle aches have been relatively mild so far. Paragraph 3.______
信息库是一个包罗万象的，随着______不断修改与补充的数据集合。
第二篇 A profound change seems to have taken place in the economic relationship between Americans and their animals. In 1993, the pet business was a $16 billion field dominated by mom and pop outfits and independent veterinarians. Today, it is a $ 23 billion empire. Nearly 60 percent of Americans live with one or more animals. More than 30 million have dogs, and 27 million have cats. While the overall number of owners has remained relatively stable since the 1980s, they are spending ever greater amounts on their animals. Signs of the boom are everywhere. On the retail side, superstore chains are covering the country. Americans consider cats and dogs a "part of the family" rather than property, which, legally, at least, they remain. (Being property themselves, for instance, animals cannot legally inherit property in wills, though growing numbers of them are being provided for in estates, and some law firms have developed a specialty in the area. ) The reasons for this metamorphosis from property to person are mysterious. No one seems to know exactly why Americans have changed their views. A decline in warmth among homo sapiens may explain part of the phenomenon, says attorney Lane Gabeler. She says it actually helps the practice by giving her people a softer edge. "People hate lawyers, and we look more human with a dog," Gabeler insists. On the other hand, there are more reasons now to own pets than there were a generation ago. Adults in their 20s and 30s marry and have kids later, leaving more room in their lives to adopt a beast. Medical research has determined that contact with pets can lower blood pressure and fend off heart attacks, so more and more of the elderly have embraced the animal kingdom. The pet industry is confident that the future remains bright. On the health insurance side alone, for example, the market has hardly been scratched. In the United Kingdom, 13 percent of the country’s 15 million owners have policies, and in Sweden, 57 percent of 7 million have been insured. But in the United States, with a total of 114 million pets, fewer than 1 percent of pets are covered if they choke on a chicken bone or try to bite the UPS truck driver. So if the bond between people and their creatures truly exists, and if that bond keeps deepening economically as well as emotionally, the next wave of American moguls may well be pet insurance agents rather than Internet pioneers. The word "metamorphosis" (para. 4) could best be replaced by ______.
阅读下面的短文，文中有15处空白，每处空白给出4个选项，请根据短文的内容从4个选项中选择1个最佳答案。 Plants still give us our oxygen. If every plant (51) , you’ll die too. Without plants, you can’ t breathe. But you also need energy. You need it to breathe and to move. In fact, you need (52) to live. Some of the first living things couldn’t (53) their own energy. They needed the energy of sunlight, but they couldn’t make it themselves. (54) could they get it There was only one answer at the (55) . That is still true today. Animals still have to get their energy from. plants. Plants keep you (56) . Sometimes we eat the plants (57) . But sometimes an animal eats the plants (58) , then we eat the animal. Apples and oranges grow on trees—plants. Bread comes from plants in a (59) . We get eggs from birds, but the birds eat plants. (Or they eat insects, and the insects have eaten plants. ) We can eat (60) from a deer, but the deer has eaten plants. We eat (61) , and the fish has already eaten plants. (Or it ate other fish—and they ate plants. ) We don’ t eat (62) , but we drink milk. And the cow has eaten the grass for us. Every part of your food comes from plants. When you eat part of an animal, ask yourself, what did this animal eat If it ate other animals, ask yourself, what did they eat You will always (63) a plant. So what is really keeping you alive The green plants of the world are catching sunlight for you. You are using the energy from our own (64) . You are (65) the sun.
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