填空题 Moon Exploration Many people wonder why some men want to live on the moon. {{U}} {{U}} 1 {{/U}} {{/U}}It is a silent place, where the weather is hot and sunny or cold and dark. Its surface is dull and almost colorless. There are no lakes, rivers, or plants to provide beauty. {{U}} {{U}} 2 {{/U}} {{/U}}Astronauts on the moon certainly miss the comfort of life on the earth. But man has always moved to new frontiers. Every pioneer in a new land has faced danger and hardship. Some scientists hope that continued work will be done on the moon. Many experiments will be done there more easily. {{U}} {{U}} 3 {{/U}} {{/U}}Matter can be heated to very high temperatures without chemical change when it is in a vacuum. Air, dust and clouds cannot block human being's view of space from the mood. The very high or very low temperatures and low gravity on the moon will be used for many experiments. One very important use of the moon will be to launch spacecraft. Man might be able to learn much about his own body by living on the moon. {{U}} {{U}} 4 {{/U}} {{/U}}Man would be in control of the community of life in which he lives. Bacteria could be removed from the air in this community. Gravity is one thing that would not be under human being's control. Some scientists believe the low gravity of the moon would be healthful for man. The heart would not have to work so hard. The body would need less energy to move than it does on the earth. {{U}} {{U}} 5 {{/U}} {{/U}}Much exercise would probably be needed to keep the body in good condition. A．He would be living in a habitat that he made for himself. B．However, the human body might change during long stays on the moon. C．But man cannot live there happily and comfortably. D．It is probably not the kind of place where most men would choose to live. E．A simple walk on the moon's surface is filled with danger. F．Some large experiments are very easy to do in a vacuum.

填空题阅读下面的短文，文章中有5处空白，文章后面有6组文字，请根据文章的内容选择5组文字，将其分别放回文章原有位置，以恢复文章原貌。 {{B}}Don't Rely on Plankton to Save the Planet{{/B}} Encouraging plankton growth in the ocean has been touted by some as a promising way to remove carbon dioxide from the atmosphere.{{U}} (46) {{/U}}. Adding iron to patches of ocean can make plankton bloom temporarily. The microscopic organisms suck up dissolved carbon dioxide from the water, which in turn is replaced by carbon dioxide from the air.{{U}} (47) {{/U}}. Jorge Sarmiento from Princeton and his colleagues developed a complex computer model to analyse how factors such as ocean chemistry and water circulation would affect the process if 160, 000 square kilometres of ocean were seeded with iron for a month.{{U}} (48) {{/U}}. In their scenario, which covers an area 10 times as big as the largest experiment of this kind ever proposed, fertilising the ocean removes 1 million tonnes of carbon from the atmosphere -- just 0.2 per cent of the carbon dioxide humankind spews out each month. Rough estimates in the past have predicted similarly disappointing results.{{U}} (49) {{/U}}says Sallie Chisholm, an environmental engineer from the Massachusetts Institute of Technology. "But the take-home message is the same.{{U}} (50) {{/U}}"A Its opponents argue, however, that it will stop global warming.B Its opponents fear that it will damage the marine ecosystem, and now a computer model shows that the trick would also be remarkably inefficient.C As plankton die and settle on the ocean floor, their carbon is supposedly locked up in the seabed,D They found that 100 years later only between 2 and 11 per cent of the extra carbon that was originally taken up by plankton had actually been removed from the atmosphere.E "These are newer and better models,"F Ocean fertilisation is not the answer to global warming.

填空题Many local newspapers in Britain are making ______.

填空题There are many words to describe how a person thinks, feels and acts. Gordon all ports, an American psychologist, found nearly 1 8,000 English words characterizing differences in people's behavior And many of us use this information as a basis for describing, or typing, his personality.A. Even a skilled writer probably could not describe an the features that make one face different from another.B. Like the human face, human personality is very complex.C. But we can easily tell the "good guys" from the "bad guys" because the two types differ in appearance as well as in actions.E. Bookworms, conservatives, military types—people are described with such terms.F. We also tell people apart by how they behav

填空题Hints for Reading Practice Most of US can find 15 minutes or half an hour each day for some regular activity. For example, one famous surgeon always spent 15 minutes reading something before he went to sleep each day. Whether he went to bed at 10 p.m. or 2:30 a.m. made no difference. "Speed Reading" courses teach students how to read more quickly. In such courses, teachers often ask students to find out how many words a minute they are reading. You can do this too. look at your watch every 5 or 10 minutes and write down the page number you have reached. Obviously, you should not increase your reading speed if you do not understand what you are reading. If you find something you don"t understand in the book, or you cannot clearly remember the details of what you read, why not read the chapter again? Take four or five pages of an interesting book you happen to be reading now. Read these pages as fast as you can. Don"t worry about whether you understand or not. If you keep doing this "lightning speed" reading for a period of time, you will usually find that your normal speed has increased. Most paragraphs in an article have a topic sentence that expresses the central idea. The opening paragraph often suggests the general direction and content of the article, while paragraphs that follow expand or support the first. The closing paragraph often gives a summary of the most important points of the article.

填空题Every Dog Has His Say Kimiko Fukuda always wondered what her dog was trying to say. Whenever she put on makeup, it would pull at her sleeve. (1) When the dog barks, she glances at a small electronic gadget (装置). The following "human" translation appears on its screen: "Please take me with you." "I realized that's how he was feeling," says Fukuda. The gadget is called Bowlingual, and it translates dog barks into feelings. People laughed when the Japanese toymaker Takara Company made the world's first dog-human translation machine in 2002. But 300,000 Japanese dog owners bought it. (2) "Nobody else had thought about it," said Masahiko Kajita, who works for Takara. "We spend so much time training dogs to understand our orders; what would it be like if we could understand dogs?" Bowlingual has two parts. (3) The translation is done in the gadget using a database containing every kind of bark. Based on animal behaviour research, these noises are divided into six categories, happiness, sadness, frustration, anger, declaration and desire. (4) In this way, the database scientifically matches a bark to an emotion, which is then translated into one of 200 phrases. When a visitor went to Fukuda's house recently, the dog barked a loud "bow wow". (5) It was followed by "I'm stronger than you" as the dog growled and sniffed (嗅) at the visitor. The product will be available in U.S. pet stores this summer for about U.S. $120. It can store up to 100 barks, even recording the dog's emotions when the owner is away. A．A wireless microphone is attached to the dog's collar, which sends information to the gadget held by the owner. B．Nobody really knows how a dog feels. C．This translated as "Don't come this way". D．More customers are expected when the English version is launched this summer. E．Now, the Japanese girl thinks she knows. F．Each one of these emotions is then linked to a phrase like "Let's play", "Look at me", or "Spend more time with me".

填空题A physically and mentally active B be alert and receptive C engage in mental, activities D the benefits of challenging the brain E beneficial and happy F maintain mental alertness

填空题Disposed oil and many other items can be reused to ______.

填空题Mt. Desert Island The coast of the State of Maine is one of the most irregular in the world. A straight line running from the southernmost coastal city to the northernmost coastal city would measure about 225 miles. If you followed the coastline between these points, you would travel more than ten times as far. This irregularity is the result of what is called a drowned coastline. ______(46) At that time, the whole area that is now Maine was part of a mountain range that towered above the sea. As the glacier(冰川) descended, however, it expended enormous force on those mountains, and they sank into the sea. As tbe mountains sank, ocean water charged over the lowest parts of the remaining land, forming a series of twisting inlets and lagoons(咸水湖). The highest parts of the former mountain range, nearest the shore, remained as islands. ______(47) Marine fossils found here were 225 feet above sea level, indicating the level of the shoreline prior to the glacier. The 2.500-mile long rocky coastline of Maine keeps watch over nearly two thousand islands. Many of these islands are tiny and uninhabited, but many are home lo thriving communities. Mt. Desert Island is one of the largest, most beautiful of the Maine coast islands. Measuring 16 miles by 12 miles, Mt. Desert was essentially formed as two distinct islands. ______(48) For years, Mt. Desert Island. particularly its major settlement, Bar Harbor, afforded summer homes for the wealthy. Recently though, Bar Harbor has become a rapidly growing arts community as well. But, the best part of the island is the unspoiled forest land known as Acadia National Park. Because the island sits on the boundary line between the temperate(温带)and sub-Arctic zones, the island supports the plants and animals of both zones as well as beach, inland, and alpine(高山的)plants. ______(49) The establishment of Acadia National Park in 1916 means that this natural reserve will be perpetually available to all people, not just the wealthy. Visitors to Acadia may receive nature instruction from the park naturalists as well as enjoy camping, cycling, and boating. Or they may choose to spend time at the archeological museum, learning about the Stone Age inhabitants of the island. The best view on Mt. Desert Island is from the top of Cadillac Mountain. ______(50)From the summit, you can gaze back toward the mainland or out over the Atlantic Ocean and contemplate the beauty created by a retreating glacier.A. This mountain rises 1, 532 feet, making it the highest mountain on the Atlantic seaboard.B. It is split almost in half by Somes Sound, a deep and narrow stretch of water, seven miles long.C. h also ties in a major bird migration lane and is a resting spot for many birds.D. The term comes from the activity of the ice age.E. Mt. Desert Island is one of the most famous of all the islands left behind by the glacier.F. The wealthy residents of Mr. Desert Island selfishly kept it to themselves.

填空题 下面的短文后有2项测试任务：(1)第23～26题要求从所给的6个选项中为第3～6段每段选择1个最佳标题：(2)第27～30题要求从所给的6个选项中为每个句子确定1个最佳选项。 More Than 8 Hours Sleep Too Much of a Good Thing Although the dangers of too little sleep are widely known, new research suggests that people who sleep too much may also suffer the consequences. Investigators at the University of California in San Diego found that people who clock up 9 or 10 hours each weeknight appear to have more trouble falling and staying asleep, as well as a number of other sleep problems, than people who sleep 8 hours a night. People who slept only 7 hours each night also said they had more trouble falling asleep and feeling refreshed after a night's sleep than 8-hour sleepers. These findings, which Dr. Daniel Kripke reported in the journal Psychosomatic Medicine, demonstrate that people who want to get a good night's rest may not need to set aside more than 8 hours a night. He added that "it might be a good idea" for people who sleep more than 8 hours each night to consider reducing the amount of time they spend in bed, but cautioned that more research is needed to confirm this. Previous studies have shown the potential dangers of chronic shortages of sleep -- for instance, one report demonstrated that people who habitually sleep less than 7 hours each night have a higher risk of dying within a fixed period than people who sleep more. For the current report, Kripke reviewed the responses of 1,004 adults to sleep questionnaires, in which participants indicated how much they slept during the Week and whether they experienced any sleep problems. Sleep problems included waking in the middle of the night, arising early in the morning and being unable to fall back to sleep, and having fatigue interfere with day-to-day functioning. Kripke found that people who slept between 9 and 10 hours each night were more likely to report experiencing each sleep problem than people who slept 8 hours. In an interview, Kripke noted that long sleepers may struggle to get rest at night simply because they spend too much time in bed. As evidence, he added that one way to help insomnia is to spend less time in bed. "It stands to reason that if a person spends too long a time in bed, then they'll spend a higher percentage of time awake. " he said. A. Keprike's Research Tool B. Dangers of Habitual Shortages of Sleep C. Criticism on Kripke's Report D. A way of Overcoming Insomnia E. Sleep Problems of Long and Short Sleepers F. Classification of Sleen Problems

填空题下面的短文有5处空白，短文后有6个句子，其中5个取自短文，请根据短文内容将其分别放回原有位置，以恢复文章原貌。{{B}}What'sLackingin"Sicko"?{{/B}}Whenitcomestoeconomicdecisions,therearealwaystrade-offs(取舍).Gainonethingandyoulosesomethingelse.{{U}}(46){{/U}}.ThecentralargumentofMichaelMoore'smovie"Sicko"-thatthecuretothenation'shealthcareproblemsisasingle-payersystem-ishardlynovelandiscertainlyworthconsideration,whetherornotyouagreewithit.ButincomparingtheAmericansystemwithsingle-payerplansofothercountries-Britain,France,CanadaandCuba-Mr.Mooreleftoutthetrade-offs,characterizingthosecountriesashealthcareparadises.{{U}}(47){{/U}}.KurtLeder,thefilmcriticwhoisbestknownastheanchor(主持人)of"MTVNews,"wroteacritique(批评)ofthefilmforMTV'swebsite."’Sicko’,"hesaid,"doesarealservice"inportraying(描绘)victimsofAmericaninsurancecompanies-likethepeoplewhodiedbecause,theironlytreatmentoptionswereconsidered"experimental"andthereforenotcovered.{{U}}(48){{/U}}.When"governmentsattempttoregulatethebalancebetweenalimitedsupplyofhealthcareandanunlimiteddemandforit,they'reinevitablyforcedtorationtreatment,"Mr.Loderasserted.{{U}}(49){{/U}}Mr.Lodercitedtheshortfilm"DeadMeat,"whichpresentsanecdotes(轶事)offailureintheCanadiansingle-payersystem.Initsone-sidedness,"DeadMeat"mighthavemadeforanicedoublefeaturewith"Sicko,"andleftmoviegoerswithamorecompleteunderstandingofthecomplicationsofdecidingonahealthcaresystem.{{U}}(50){{/U}}.Thisallmakesanotherwise"emotionallycompellingfilmnotnecessarilyanintellectuallysatisfyingone,"wroteDarrenBarefoot,aCanadianblogger(博客作者).AMr.Moorealsodecidedtoignoreproblemsinothercountries,likeFrance'shightaxesandBritain'scash-shorthospitals.BButthefilmasawhole,heconcluded,is"breathtakinglymeretricious(似是而非的),"inlargepartbecauseofitscharacterizationsofothercountries'healthcaresystems.CTheproblemshavebeennoticed-andcriticismis"comingnotjustfromMr.Moore'sdetractors(底毁者).DHetickedoffanumberofnegativestatisticstocounterthepositiveonesofferedbyMr.Moore.EHealthcareistheprevention,treatment,andmanagementofillness.FThisisparticularlytrueinhealthcare,amarketinwhichscarce(稀罕的)goodsareridiculouslyexpensive,butneededbyeverybody.

填空题Next the thinker must define the problem. Before Sam can repair his bicycle, he must find the reason why it does not work. ______ He must make his problem more specific.A. However, when all these methods fail, the person with a problem has to start analyzing.B. Eventually one suggestion seems to be the solution to the problem.C. He immediately realizes the solution to his problem: he must clean the gear wheels.D. For instance, he must determine if the problem is with the gears, the brakes, or the flame.E. After studying the problem, the person should have several suggestions for a possible solution.F. In short, he has solved the problem.

填空题Teach Your Child Science 1. It is important to make your child interested in science from an early age. Most young children ask a lot of questions and you should give careful scientific answers. Don't only give facts, but try to give explanations as well. 2. Science is not just knowledge; it is a way of thinking, a method of finding out about the world. We see something. We try to explain it, and we test our idea by setting up an experiment. One day you come home and find the plant on the table has fallen over. You think it might be the wind from the open window or the cat, so you close the window, but leave the cat in and see what happens (you can also try leaving the window open and shutting the cat out). Of course, you remember there may be a third explanation. 3. Ask your child to get a piece of string, some salt, a glass of water and an ice cube (冰块). Tell her to put the ice in the water, and then put one end of the string on the ice, leaving the other end over the side of the glass. Put a little salt on the ice. Wait a minute, and then pull the string; it should be attached to the ice. Ask the child: "what has happened?" 4. Probably she won't know. Ask her whether fresh water or salt water freezes into ice first. If you live near the sea and have a cold winter, she should know fresh water freezes first as she will have seen that happen. Show her how to test the idea by half-filling two paper cups with water, adding salt to one. Then put them in the icebox and check every three minutes. Write the results in a table. The conclusion will be that salt changes the behaviour of water. 'Thinking about the string, we see the salt turned some of the ice into water. Then the salt went away into the water and the ice froze again leaving the string attached. 5. Then you can ask, "Will water with salt boil at the same temperature as water without salt?" She can think, tell you her idea and (taking care because of the heat) you can test it in the kitchen. A. What exactly is science? B. How do you find an explanation? C. What topics do you need? D. How do you answer your child's questions? E. Where does your child study science? F. How do you set up the experiment on salt and water?

填空题A. What exactly is science?B. How do you find an explanation?C. What topics do you need?D. How do you answer your child's questions?E. Where does your child study science?F. How do you set up the experiment on salt and water?

填空题阅读下面的短文，文章中有5处空白，文章后面有6组文字，请根据文章的内容选择5组文字，将其分别放回文章原有位置，以恢复文章原貌。 {{B}}The Magic of Sound{{/B}} Music is one of the most beautiful forms of artistic expressions ever invented. In movies and plays, music has an added function: it not only moves people but also can shock people. Is it true that an ordinary musical instrument can be so powerful? Our eardrums can withstand sound within 20 to 80 decibels. Once sound exceeds this limit, even beautiful music will become ear-splitting noise and harm health. A strong blast of high sound can twist and break a solid iron sheet.{{U}} (46) {{/U}} The noise from a plane's engine is over 140 decibels. However, the sound of a flute is at most a few decibels.{{U}} (47) {{/U}}It has been proven that people who have worked in an environment with a high sound intensity for a long time suffer varying degrees of heart disease or altered brain waves. In movies, sometimes the hero can produce a sound that ordinary people can't hear and only those who have the same ability can feel. In nature, there is actually sound that is beyond our hearing. In physics, the sound that exceeds 20,000 Hz is called ultrasonic. {{U}}(48) {{/U}}It does no harm to health. Sound less than 20 Hz is called infrasonic waves. When we move, the air will vibrate. {{U}}(49) {{/U}}As the frequency of infrasonic waves is close to that of people's internal organs, infrasonic wave may cause resonance in human bodies. As a result, people's vision may weaken and internal organs may rupture. However, whether an infrasonic wave can be used as a weapon depends on its intensity. If its intensity is very low, it won't damage internal organs or a person's health. {{U}}(50) {{/U}}When wind blows at a force of 3 or 4 over the sea6, it will produce infrasonic waves of several decibels. Only typhoons can produce infrasonic waves of over 100 decibels. At present, scientists can only produce infrasonic weapons in the lab with the help of advanced scientific tools and powerful electric power.A. High sound of 150 decibels can kill a healthy rat.B. The vibration of air can produce infrasonic waves.C. We cannot play high-pitched music with ordinary musical instruments.D. If the intensity of infrasonic wave exceeds 160 decibels, it is extremely harmful.E. Dolphins, whales and bats can make such high-frequency sound.F. Therefore, the sound of ordinary musical instruments cannot harm your health.

填空题A by keeping its original shape and color B in the life of the cut flower C to produce carbon dioxide D for as long as possible E by controlling temperature F to replace the water and solution every day

填空题下面的短文后有2项测试任务：(1)第23～26题要求从所给的6个选项中为第2～5段每段选择1个最佳标题；(2)第27～30题要求从所给的6个选项中为每个句子确定1个最佳选项。 Screen Test 1 Every year millions of women are screened with X-rays to pick up signs of breast cancer, ff this happens early enough, the disease can often be treated successfully. According to a survey pub- lished last year, 21 countries have screening programmes. Nine of them, including Australia, Canada, the US and Spain, screen women under 50. 2 But the medical benefits of screening these younger women are controversial, partly because the radiation brings a small risk of inducing cancer. Also, younger women must be given higher doses of X-rays because their breast tissue is denser. 3 Researchers at the Polytechnic University of Valencia analyzed the effect of screening more than 160,000 women at 11 local clinics. After estimating the women's cumulative dose of radiation, they used two models to calculate the number of extra cancers this would cause. 4 The mathematical model recommended by Britain's National Radiological Protection Board (NRPB) predicted that the screening programme would cause 36 cancers per 100,000 women, 18 of them fatal. The model preferred by the UN Scientific Committee on the Effects of Atomic Radiation led to a lower figure of 20 cancers. 5 The researchers argue that the level of radiation-induced cancers is "not very significant" compared to the far larger number of cancers that are discovered and .treated. The Valencia programme, they say, detects between 300 and 450 cases of breast cancer in every 100,000 women screened. 6 But they point out that the risk of women contracting cancer from radiation could be reduced by between 40 and 80 percent if screening began at 50 instead of 45, because they would be exposed to less radiation. The results of their study, they suggest, could help "optimize the technique" for breast cancer screening. 7 "There is a trade-off between the diagnostic benefits of breast screening and its risks," admits Michael Clark of the NRPB. But he warns that the study should be interpreted with caution. "On the basis of the current data, for every 10 cancers successfully detected and prevented there is a risk of causing one later in life. That's why radiation exposure should be minimized in any screening programme. " A. Harm Screening May Do to a Younger Woman B. Investigating the Effect of Screening C. Effects Predicted by Two Different Models D. Small Risk of Inducing Cancers from Radiation E. Treatment of Cancers F. Factors That Trigger Cancers

填空题A. distributedB. personalizedC. modifiedD. increasedE. browsedF. released

填空题A a second language B the same language C the same speech community D any other language E national boundaries F a part of one's heritage

填空题 A. concerned with the problems that we will have to solve in the future B. reading books of science fiction C. political implication (涵义) D. a recurrent theme E. read worldwide