He ________ be somewhere around here. I can't see him but his voice sounds clear as a bell.
A. can B. might C. must D. could
备战中考寒假系列答案科目：高中英语 来源：2013-2014学年浙江省高三上学期期中英语试卷（解析版） 题型：信息匹配
A. Attention must be paid to environmental factors.
B. Principles of curing cancers.
C. It will take long to find perfect cures.
D. An important discovery in the research.
E. The causative factor of cancer is very clear.
F. The survival rate differs among patients with various cancers.
1.___________
“I have great confidence that by the end of the decade we’ll know in vast detail how cancer cells arise,” says microbiologist Robert Weinberg, an expert on cancer. “But,” he cautions, “some people have the idea that once one understands the causes, the cure will rapidly follow. Consider Pasteur. He discovered the causes of many kinds of infections, but it was fifty or sixty years before cures were available. ”
2.____________
This year, 50 percent of the 910,000 people who suffer from cancer will survive at least five years. In the year 2020, the National Cancer Institute estimates, that figure will be 75 percent. For some skin cancers, the five-year survival rate is as high as 90 percent. But other survival statistics are still discouraging—13 percent for lung cancer, and 2 percent for cancer of the pancreas (胰腺) .
3.___________
With as many as 120 varieties in existence, discovering how cancer works is not easy. The researchers made great progress in the early 1970s, when they discovered that oncogenes, which are cancer-causing genes, are inactive in normal cells. Anything from universe rays to radiation to diet may activate an inactive gene, but how remains unknown. If several oncogenes are driven into action, the cell, unable to turn them off, becomes cancerous.
4.____________
The exact process involved is still mysterious, but the likelihood that many cancers are initiated at the level of genes suggests that we will never prevent all cancers. “Changes are a normal part of the evolutionary process,” says oncologist William Hayward. Environmental factors can never be totally eliminated; as Hayward points out, “We can’t prepare a medicine against universe rays.”
5.____________
The prospects for cure, though still distant, are brighter. “First, we need to understand how the normal cell controls itself. Second, we have to determine whether there are a limited number of genes in cells, which are always responsible for at least part of the trouble. If we can understand how cancer works, we can reduce its action. ”
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科目：高中英语 来源：吉林省2009-2010学年高二下学期期中考试试题（英语） 题型：完形填空
第二节：完形填空(共20小题；每小题1.5分，满分30分)
阅读下面短文，从短文后所给各题的四个选项(A、B、C和D)中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
The back door of the ambulance was suddenly shut and the driver ran to the front, jumped into the seat, and started the engine. Inside were the 36 parents, Mr. and Mrs. Green. The mother was holding their baby daughter, Ally. The girl had some 37 stuck in her throat and could 38 breathe.
The driver, Mr. White, turned on his siren(警报器) and sped towards the 39 hospital, fighting against the time. The 40 ahead of him pulled out of the way 41 he drove through the busy traffic. From the back of the 42 the parents were shouting at him to be 43 , since Ally had almost stopped 44 . In front of him he saw some traffic 45 , with the red “Stop” light shining. Mr. white knew he had no time to 46 , so he drove straight through the traffic lights.
Coming towards him from his right was a taxi with the 47 closed, and the driver was playing his radio, He did not 48 the ambulance. The lights were green; 49 he drove straight on into the ambulance.
Mr. White tried to stop his ambulance, but it was too 50 . It hit the taxi. Everyone was shaken, but no one was hurt. Mr. White looked to see 51 little Ally was. He was astonished to see relief(宽慰) instead of 52 on the faces of the parents.
“Look!” cried Mrs. Green. “She is breathing again.”
“It 53 have been the crash,” said her husband, “It 54 the food out of her throat.”
The baby’s color was turning 55 , and she was crying in a loud but healthy voice. They were all joyful, and quite forgot about the accident.
36. A. worried B. angry C. satisfied D. surprised
37. A. honey B. drinks C. food D. water
38. A. never B. almost C. hardly D. simply
39. A. modern B. promising C. children’s D. nearest
40. A. interviewers B. drivers C. cars D. parents
41. A. that B. as C. if D. as though
42. A. street B. cars C. traffic D. ambulance
43. A. quick B. convenient C. anxious D. calm
44. A. breathing B. circulating C. saying D. talking
45. A. signs B. policemen C. lights D. marks
46. A. stop B. spare C. lose D. miss
47. A. engine B. car C.door D.window
48. A. hear B. see C. find D. notice
49. A. however B. so C. but D. on the other hand
50. A. dangerous B. late C. careless D. quick
51. A. how B. what C where D. who
52. A. pleasure B. anger C. fear D. surprise
53. A. may B. can C. should D. must
54. A. took B. picked C. knocked D. pulled
55. A. common B. normal C. general D. ordinary
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科目：高中英语 来源：2011-2012年江苏省高三上学期期中考试英语试卷 题型：单项填空
It’s going to be some time _____ he sees his father again, _____ business has just been started in Switzerland．
|
A．after; who |
B．before; whose |
C．when; whose |
D．since; who |
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科目：高中英语 来源：20102011年度河北省高三第二学期第一次调研英语卷 题型：阅读理解
Microwaves may be great at warming up food, but what about warming people?
Using microwaves to directly heat owners of a room would save much of the energy wasted by heating walls and furniture. And despite popular ideas about microwaves, this technique would be safe, according to Charles R. Buffler of the Microwave Research Center in Marlborough, New Hampshire. Low-power microwaves only penetrate (贯穿) the skin (low-power microwave penetration in a ham is about 0.2 inches, for example) and with no negative effects.
To test this idea, Buffler subjected himself to microwaves in a special room using a standard 500-watt, 2459 MHz magnetron (磁控管). He found that a person will start to feel warmth at about 20 milliwatts per square centimeter (mw. /sq.cm.); a satisfactory feeling of warmth occurs between 35 and 50 mw./sq.cm. By comparison, a person standing in noonday summer sun feels the amount of 85 mw./sq.cm. And a frozen meat pie in your microwave oven receives about 1000 mw./sq. cm.
In houses of the future, each room could be provided with its own magnetron, says Buffler. When you stepped into the living room, for example, a motion detector would turn on the magnetron, filling the room with low-power microwaves. In the same way that a microwaves oven heats up a hamburger, but not the plate it’s on, you would feel warmth from the microwaves without changing the temperature of your coffee table. (You could, however, make your favorite easy chair even more comfortable by treating it with a radiation-absorbing chemical.)
While it might be some time before homeowners are comfortable enough with the idea to set up whole body microwave heaters in houses, Buffler says microwaves may attract livestock farmers. Lambs that are born outdoors in winter, for example, are frequently lost to cold. Microwaves could warm the lambs safely and quickly.
1. Which of the following can tell the main idea of the passage?
A. A new heating system. B. A new microwave oven.
C. A popular technique. D. The magnetron.
2. The test conducted by Buffler shows that when a person feels comfortable warmth, he receives about ____.
A. 20 mw. / sq. cm. B. 40 mw. / sq. cm.
C. 60 mw. / sq. cm. D. 85 mw. / sq. cm.
3. According to paragraph 4, which of the following fills the room with low-power microwaves?
A. The magnetron. B. The motion detector.
C. The microwave oven. D. The radiation-absorbing chemical.
4. Which of the following statements about microwave heaters would Buffler most probably agree with?
A. Microwave heaters will soon be widely used by homeowners.
B. Microwave heaters sometimes make people feel uncomfortable.
C. Microwave heaters will be probably first used by livestock farmers to protect their lambs in winter.
D. Microwave heaters cannot be accepted by the public because they are somewhat unsafe.
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科目：高中英语 来源：20102011学年浙江省杭州市高一下学期第一次质量检测英语卷 题型：阅读理解
This year 2,300 teenagers (young people aged from 13-19 ) from all over the world will spend about ten months in U.S. homes. They will attend U.S. schools, meet U.S. teenagers, and form impressions (印象) of the real American teenagers. American teenagers will go to other countries to learn new languages and have a new understanding of the rest of the world.
Here is a two-way student exchange in action. Fred, nineteen, spent last year in Germany with George’s family. In return, George’s son, Mike, spent a year in Fred’s home in America.
Fred, a lively young man, knew little German when he arrived, but after two months’ study, the language began to come to him. School was completely different from what he had expected — much harder. Students rose respectfully (尊敬地) when the teacher entered the room. They took fourteen subjects instead of the six that are usual in the United States. There were almost no outside activities.
Family life, too, was different. The family’s word was law, and all activities were around the family rather than the individual (个人). Fred found the food too simple at first. Also, he missed having a car.
“Back home, you pick up some friends in a car and go out and have a good time. In Germany, you walk, but you soon learn to like it.”
At the same time, in America, Mike, a friendly German boy, was also forming his idea. “I suppose I should criticize (批评) American schools.” he says. “It is far too easy by our level (水准). But I have to say that I like it very much. In Germany we do nothing but study. Here we take part in many outside activities. I think that maybe your schools are better in training for citizens (市民). There ought to be some middle ground between the two.”
1.The whole exchange program is mainly to ____.
A. help teenagers in other countries know the real America
B. send students in America to travel in Germany
C. let students learn something about other countries
D. have teenagers learn new languages
2. What did Fred and Mike agree on?
A. American food tasted better than German food.
B. German schools were harder than American schools.
C. Americans and Germans were both friendly.
D. There were more cars on the streets in America.
3. What is particular (特别的) in American schools?
A. There is some middle ground between the two teaching buildings..
B. There are a lot of after-school activities.
C. Students usually take 14 subjects in all.
D. Students go outside to enjoy themselves in a car.
4.What did Mike think after experiencing the American school life?
A. A better education should include something good from both America and Germany.
B. German schools trained students to be better citizens.
C. American schools were not as good as German schools.
D. The easy life in the American school was more helpful to students.
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