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科目：高中英语
来源：不详
题型：阅读理解
D　　In the atmosphere,carbon dioxide actd rather like a one-way mirror or the glass in the roof of a greenhouse which allows the sun's rays to enter but prevents the heat from excaping.　　According to a weather expert's prediction,the atmosphere will be 3 warmer in the year 2050 than it is today, if man continues to burn luels at the present rate. If this warming up took place,the ice caps in the poles would begin to melt,thus raising sea level several meters and severely flooding coastal cities.Also，the increase in atmospheric temperature would lead to great changes in the climate of the northern hemisphere(半球),psooicbly resulting in an alteration of earth's chief food growing zones.　　In the past,concern about a man - made warming of the earth has concentrated on the Arctic because the Antarctic is much colder and has a much thicker ice sheet.But the weather experts are now paying more attention to West Antarctic,which may be affected by a warming on the scale that will possibly take place in the next fifty years from on burning of fuels.　　Satellite pictures showthat large areas of Antarctic ice are already disappearing.The evidence available suggests that a warming has taken place.This fits the theory that carbon dioxide warms the earth.　　However,most of the fuel is burnt in the northern hemisphere,where temperatures seem to be falling.Scientists conclude,therefore,that up to now natural influences on the weather have exceeded those caused by man.The question is:Which natural cause has most effect on the weather?　　One possibility is the variable behavior of the sun.Astronomers at one research station have studied the hot spots and cold spots(that is,the relatively less hot spots) on the sun. As the sun rotates(旋转),every 27.5 days,it presents hotter or colder faces to the earth,and different aspects to different parts of the earth.This seems to have a considerable effect on the distribution of the earth's atmospheric pressure,and consequently on wind circulation.The sun is also variable over a long term:its heat output goes up and down in cycles,the latest trend being downward.　　Scientists are now finding mutual relations between models of solar weather interactions and the actual climate over many thousands of years ,including the last Ice Age.The problem is that the models are predicting that the world should be entering a new Ice Age and it is not.　　One way of solving this theoretical difficulty is to assume a delay of thousands of years while the solar effects overcome the inertia(不活动，惰性) of the earth's climate.If this is right,the warming effect of carbon dioxide might thus be serving as a useful counter balance to the sun's diminishing heat. 　　68.It can be concluded that a concentration of carbon dioxide in the atmosphere would ___. 　　　A.mean a warming - up im the Arctic　　　B.raise the temperature of the earth's surface　　　C.prevent the sun's rays from reaching the earth's surface　　　D.account for great changes in the climate in the northern hemiphere 　　69.Although the fuel consumption is greater in the northern hemisphere,temperatures there seem to be falling.This is _______. 　　　A.mainly because the levels of carbon dioxide are rising　　　B.partly due to variations in the output of solar energy　　　C.possibly because the ice caps in the poles are melting　　　D.exclusively due to the effect of the inertia of the earth's climate 　　70.On the basis of their models,scientists are of the opinion that ________. 　　　A.the climate of the world should be becoming cooler 　　　B.the new Ice Age will be delayed by the greenhouse effect 　　　C.the man - made warming effect helps to increase the solar effects　　　D.it will take thousands of years for the inertia of the earth's climate to take effect
科目：高中英语
来源：不详
题型：阅读理解
EComputer mouse is no longer so strong. A Canadian engineer has invented a system that enables a computer user to push a cursor（光标）across a screen simply by moving his or her nose .He calls his nose-driven mouse a mouse.The inventor ,Dmity Gorodnichy ,came up with the idea for the mouse while building computer software that would help astronauts operate the Canadarm—a long robotic arm on the U.S. space shuttle .His system employs a web-camera that recognizes a computer user’s nose from 25 pixels ,or points of light. Dmity chose the nose because its position remains relatively constant no matter which way the head moves .The system keeps track of the pixels, and the user matches the movements of his or her nose with the progress of the cursor across the screen.The mouse keeps track of the eyes too. Two blinks（眨眼）are a “double click,” which turns the mouse on or off.The mouse has received mixed comments from those who hold opposite opinions. One called it “a pointless waste of technology” . Another predicted that the nouse will fail to catch on because it makes users “look silly.” Dmity has already adapted the nouse for NousePong, a video game ,and NousePaint ,a drawing program.He also predicts that the mouse will attract the people who have suffered from specific disease-pain ,senselessness ,or trembling in the hand caused by the frequent repetition of movements of the wrist and fingers ,such as typing at a computer keyboard .His next plan is to adapt the nouse for use by paralyzed（瘫痪）patients in hospitals .With two blinks of the eyes ,patients could double-click for help.72．The best title for this passage is probably&&&&&&.A．Mouse Driven by NoseB．Cursor Moved Without fingersC.New Computer System for AstronautsD．New Type of Mouse for Patients73．The nouse is a system working by means of &&&&&&&&&.A．keeping track of the points of lightB．moving one’s nose or blinkingC.moving cursor across the screenD．matching the user’s nose with eyes74．The underlined phrase “catch on” means “&&&&&&&”.A．become popular &&&&B．be used&&&&& C.get improved&&&&&&& D．be made75．Dmity predicts that the nouse will be more used to help &&&&&&&&&.A．those who have eye troubleB．develop a video game and drawing programC.those traveling in spaceD．the disabled with the hand and paralyzed patients
科目：高中英语
来源：不详
题型：阅读理解
EThere was one thought that air pollution affected only the area immediately around large cities with factories and heavy automobile traffic. At present, we realize that although these are the areas with the worst air pollution, the problem is worldwide. On several occasions over the past decade, a heavy cloud of air pollution has covered the east of the United States and brought health warnings in rural areas away from any major concentration （集中）of manufacturing and automobile traffic. In fact, the very climate of the entire earth may be infected by air pollution.Some scientists consider that the increasing concentration of carbon dioxide in the air resulting from the burning of coal and oil is creating a “greenhouse effect” - raising the world’s average temperature. If this view is correct and the world’s temperature is raised only a few degrees, much of the polar ice will melt and cities such as New York, Boston, Miami, and New Orleans will be in water.Another view, less widely held, is that increasing particular matter in the atmosphere is preventing sunlight and lowering the earth’s temperature - a result that would be equally disastrous. A drop of just a few degrees could create something close to a new ice age, and would make agriculture difficult or impossible in many of our top farming areas. Today we do not know for sure that either of these conditions will happen though one recent government reports that the greenhouse effect is very possible. Perhaps, if we are lucky enough, the two tendencies will offset（抵消）each other and the world’s temperature will stay about the same as it is now. Driven by economic profits, people don’t think about the damage on our environment caused by the “advanced civilization”. Maybe the air pollution is the price the human beings have to pay for their development. But is it really worth?72. As pointed out at the beginning of the passage, people used to think that air pollution ________. A. caused widespread damage in the countryside B. affected the entire eastern half of the United States C. had damaged effect on health D. existed only in urban and industrial areas73. As to the greenhouse effect, the author ________. A. shares the same view with the scientists B. is uncertain of its happening C. rejects it as being ungrounded D. thinks it will destroy the world soon74. It can be concluded from the last paragraph that ________. A. lowering the world’s temperature only a few degrees would lead major farming areas to disaster B. raising the world’s temperature only a few degrees would not do much harm to life on earth C. almost no temperature variations have occurred over the past decade D. the world’s temperature will remain constant in the years to come75. This passage is mainly about ________.A. the greenhouse effect B. the burning of coal and oil C. the potential effect of air pollution D. the likelihood of a new ice age
科目：高中英语
来源：不详
题型：阅读理解
&&EBe careful what you say around your dog. It might understand more than you think.A border collie named Rico recognizes the names of about 200 objects, say researchers in Germany. The dog also appears to be able to learn new words as easily as a 3-year-old child. Its word-learning skills are as good as those of a parrot or chimpanzee(黑猩猩).In one experiment, the researchers took all 200 items that Rico is supposed to know and divided them into 20 groups of 10 objects. Then the owner told the dog to go and fetch one of the items and bring it back. In four tests, Rico got 37 out of 40 commands right. As the dog couldn't see anyone to get clues, the scientists believe Rico must understand the meanings of certain words.In another experiment, the scientists took one toy that Rico had never seen before and put it in a room with seven toys whose names the dog already knew. The owner then told Rico to fetch the object, using a word the dog had never heard before.The correct object was chosen in seven out of l0 tests, suggesting that the dog had worked out the answer by process of elimination(排除法). A month later, Rico remembered half of the new names, which is even more impressive.&&&&&&&&&&Rico is thought to be smarter than the average dog. For one thing, Rico is a border collie, a breed (品种)known for its mental abilities. In addition, the 9-year-old dog has been trained to fetch toys by their names since the age of nine months.It's hard to know if all dogs understand at least some of the words we say. Even if they do, they can't talk back. Still, it wouldn't hurt to sweet-talk your dog every now and then. You might just get a big, wet kiss in return!72. From paragraph 2 we know that _______.A. animals are as clever as human beingsB. dogs are smarter than parrots and chimpanzeesC. chimpanzees have good word-learning skillsD. dogs have similar learning abilities as 3-year-old children73. Both experiments show that_________.A. Rico is smart enough to get all commands rightB. Rico can recognize different things including toysC. Rico has developed the ability of learning mathematicsD. Rico won't forget the names of objects once recognizing them74. Which of the following statements is true? A. The purpose of the experiments is to show the border collie's mental abilities.
B. Rico has a better memory partly because of its proper early training. C. The border collie is world-famous for recognizing objects. D. Rico is born to understand its owner's commands.75. What does the writer want to tell us in the last paragraph? A. To train your dog.&&&&&&&&& B. To talk to your dog. C. To be friendly to your dog.&& D. To be careful with your dog.
科目：高中英语
来源：不详
题型：阅读理解
&EResearch on the human brain has been attracting more and more scientists in recent years, just like the booming hi-tech industry. One of the latest research topics is how to change the human brain or combine the computer and the human brain, i.e. to transplant a chip into a human brain. This idea may make everyone’s dream come true. If we compare a human brain to a hard disc（硬盘）, what the scientists are doing is to enlarge the capacity of the hard disc. For the time being, there are some difficulties in such transplant experiments, but scientists never give up.Experiments have started on animals. In 1996, a transplant experiment performed at the Defense and Military Physiology Research Institute in the U.S. turned a bear into a dolphin.The dolphin was named Ted, and the bear was named Tallin. Using the most advanced technology available, deep and detailed images were made of the memory area in Ted’s brain containing information about swimming by the scientists. They obtained a series of useful information, the signals transferred by the nervous system. Such information was saved into a button-sized chip, which was then transplanted into the action memory area in Tallin’s brain. The information saved on the chip was released by means of electric power.Recently, another comprehensive memory transplant was performed at the Motor Nerve Research Institute of the University of California. The comprehensive memory transplanted in the experiment included actions, moods, logic, words, images, etc. The experiment involved an entire transplant of the memory area. This was the largest such experiment done so far.The transplant was performed making a transfer from a dog named “Genius” to a dog named “Idiot”. “Genius” could understand and follow up to 100 gestures and orders made by its master. It was a real genius in memorizing. “Idiot” was the younger brother of “Genius”. It had no contact with people at all since its birth. It became an animal with nothing in its brain, without any memory.The operation was a complete success. When the two dogs woke up, “Idiot” had grasped all the abilities “Genius” it was good at memorizing and sensible. It could follow every gesture and any command given by its master. But “Genius” gave no response to its master, and in fact did not recognize him at all.57. The purpose of the experiment is _____.A. to combine the computer and the human brain&&&&B. to enlarge the capacity of human brainC. to make some stupid dog turn clever&&&&&&&&& D. to make bear swim 58. Which of the following statements is TRUE?A. The scientists transferred a button-sized chip with useful information in Tallin’s brain.B. The first comprehensive memory transplant was performed at the Motor Nerve Research University.C. The second experiment wasn’t an entire transplant of the memory area.D. The Idiot was an animal with memory before brain experiment59. What does the underlined word “success” refer to?A. The two dogs woke up.B. They were both good at memorizing.C. The Idiot grasped all the abilities of Genius.D. The Genius grasped all the abilities of Idiot.60. According to the text, we can infer _____.A. a person can know more after the experimentB. a bear can swim after being transferred a chip with related useful informationC. a dog can become clever after entire transplant of the memory areaD. it is really good for animals to have been involved in the transplant experiment
科目：高中英语
来源：不详
题型：阅读理解
Four hundred and three babies are crying loudly. Do you know how to make them quiet in 41 seconds? There is an amazing new product on sale in Japan which does exactly this. It is an LP (a long-playing record) of sounds from inside a mother's body, which a hospital doctor recorded. In tests with the record she played the LP to 403 crying babies. After 41 seconds none of the babies was crying and 161 of them were sleeping.The record began as an experiment by Professor Hajime Minooka of the Nippon Medical University near Tokyo. He was looking for something natural that helps new-born babies go to sleep. The sound of the mother's heart-beat and other body sounds are the things the babies heard inside their mothers. They feel safe and happy when they hear these sounds again. And they go to sleep.Hospitals in Osaka and Tokyo are using the LP. 10,000 young couples are using it too. Toshiba Music Company who make and sell the records are very happy. One and a half million couples（夫妇) marry every year in Japan. Many will have babies, so the LP will definitely（明确的、干脆地) be a hit! 60.The experiment was made on ___ babies.A. 10,000&&&&&&B. 564&&&&&&&&C. 403&&&&&&&&&D. 16161. What is TRUE according to the text?A. About 55% of the crying babies fall asleep after 41 seconds hearing the LP. B. The LP sounds were first recorded by Professor Hajime Minooka. C. The LP is produced and sold by Toshiba Music Company. D. One million and a half babies are born in Japan every year.62. Babies feel ___ when they hear these LP sounds.A. the sounds be their mothers' voicesB. as if they were inside their mothers C. the music natural and soft D. themselves sleeping together with their mothers 63 "Many will have babies, so the LP will definitely be a hit!" The word "hit" means"____".A. popularity&&&&&B. amazement&&&&&&C. strike&&&&&&&&D. experiment
科目：高中英语
来源：不详
题型：阅读理解
C Can you imagine a catfish bigger than a boy? There are more than 1，000 kinds of catfish；28 species are found in the United States' lakes and rivers． This huge family has some mighty strange members. Let's meet a few. Walking catfish．Nature's feisty little catfish，found in southern Florida，has an extra lung for breathing on dry land. When its swimming hole dries up，the walking catfish waddles on stiff forward fins in search of another lake or stream．If an enemy attacks，the fish flares（展开）its top and front fins and leaps at the attacker to scare it off． Armored catfish．This catfish has heavy，bony plates protecting its body. The shell makes the fish difficult to bone. To cook it，throw the fish whole into a fire. When it is done，break it open for eating．Some armored catfish are found in Florida，but the 100-pounders live in South America． Rounding out the family of strange catfish are talking catfish，which make growing sound when you pull them from the water；climbing catfish，which move quickly up shore brush in search of food；electric catfish，which can deliver a mild shock；and blind catfish，which settle in the inky blackness of underwater caves．Blind catfish find food through taste buds in their eight whiskers（须）． Most catfish have four whiskers on the upper jaw and four on the lower jaw. Sensory holes on these whiskers help the fish smell and taste food even in the muddiest of water．The United States does not have catfish anywhere near the size of those in South America．But in some large U.S，rivers，blue and flathead catties do top 100 pounds． Most of the catfish you are likely to catch will be much smaller，about frying pan size．When you catch one，remember that the top fins and the forward fins have poison glands（腺）at their bases. They can give you painful wounds （…）63．The purpose of the passage is to___________． A．encourage readers to go fishing for catfish B．inform readers of the world's largest catfish C．describe the unusual characteristics of catfish D．explain different ways to catch a variety of catfish64．The author talks about the way of cooking an armored catfish to show that A．it has heavy and bony plates&&&&&&& B．it's hard to cook and eat C．it has too many bones&&&&&&D．it's poisonous inside65．Which is NOT mentioned about catfish in the passage? A．Its eating habits．&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& B．Its living conditions．& C．Its whiskers．&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& D．Its size66．What may be continued in the last paragraph? A．The author's love for catfish．&&&&&B．Where else to catch a catfish． C．The origin of the name “catfish”&&& D．The safest way to handle catfish
科目：高中英语
来源：不详
题型：阅读理解
B The fiddler crab (蟹) is a living clock. It indicates the time of day by the colour of its skin, which is dark by day and pale by night. The crab’s changing colour follows a regular twenty-four hour plan that exactly matches the daily rhythm of the sun. Does the crab actually keep time, or does its skin simply answer to the sun’s rays, changing colour according to the amount of light which strikes it? To find out, biologists kept crabs in a dark room for two months. Even without daylight, the crab’s skin colour continued to change exactly on time. This characteristic probably developed gradually in answer to the daily rising and setting of the sun, to help protect the crab from sunlight and enemies. After millions of years it has become completely controlled inside the living body of the crab. The biologists noticed that once each day the colour of the fiddler crab is especially dark, and that each day this happens fifty minutes later than on the day before. From this they discovered that each crab follows not only the rhythm of the sun but also that of the tides (潮水). The crab’s period of greatest darkening is exactly the time of low tide on the beach where it was caught!40. The crab’s changing colour _______.A. tells the crab what time it is&B. protects the crab from the sunlight and enemiesC. keeps the crab warm&&&&&&&&&&&&D. is of no real use41. When the fiddler crabs were kept in the dark, they _______. A. did not change colour&&&&&&&&& B. changed colour more quickly
C. changed colour more slowly&&&& D. changed colour on the same timetable42. The crab’s colour—changing ability was probably developed _______. A. in the process of evolution (进化)&& B. over millions of years C. by the work of biologists&&&&&&&&& D. both A and B&&43. The best title for this selection would be _______. A. The Sun and the Tides&&&&&&&&&&&& B. Discoveries in Biology C. A scientific Study&&&&&&&&&&&&&&&& D. A Living Clock