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1、2021北京公共英语考试模拟卷（7）本卷共分为1大题50小题，作答时间为180分钟，总分100分，60分及格。一、单项选择题（共50题，每题2分。每题的备选项中，只有一个最符合题意） 1.Robots (机器人) have been with us for quite some time. They can often be seen in many factories today. They have gone to such far places as the moon. Now, robots have even come into our homes. Some robots can
2、see. They have TV cameras for eyes. Many robots have computer brains (大脑). But what do they look like Some robots look like persons but many do not. Robots are very useful to us. They can do not only simple jobs for us, such as putting things into boxes, but also some difficult jobs like getting peo
3、ple out of fire and looking for minerals (矿物) in the deep sea. Men can get tired, and they need to sleep. But robots do not eat, sleep or get tired. They can work day and night. Robots can be a lot of fun. They can do jobs to make our life better. In the future, when we have robots in our homes, the
4、y will do much of the housework for us. They will wash the dishes, take our lovely dogs for walks, watch our homes, and even talk to us.After working for a long time, robots _.Ado not get tiredBwill stop workingCmay make mistakes 2.从所给选项中选出各项意义相符的选项。 A. bed B. chair C. radio D. desk E. watch F. tele
5、phone G. televisionYou listen to it for information or enjoyment. 3.What is the mother bear doing now in March Shes sleeping. Last autumn, after having eaten very well, she made a den, covering the inside with dry grass, under a tree. In the beginning of winter, she went into it. What a fine place i
6、t is, she thought to herself, and how nice and warm! Ill spend all winter in here. She went to sleep at once, but she did not fall into a very deep sleep. For, in January, the mother bear has given birth to baby bears. While still half sleeping, she has licked (舔) them clean. Her body clock will go
7、off in April. And then she will go out of her den to look for food: food for herself and for her young. The babies will be a lot bigger by then. As soon as it is warm enough, the family will leave the den and the mother bear will start teaching the baby bears the lessons of life. To catch their atte
8、ntion (注意), she gives some caresses (爱抚), but when the babies do not listen to her, she will beat them. This is the way for all the bears in the world, whether in Europe, in Asia, or in America.What do we know about baby bearsAThey went out of the den for food in April.BThey learned their lessons fr
9、om each other.CThey were licked clean when they were born. 4.Robots (机器人) have been with us for quite some time. They can often be seen in many factories today. They have gone to such far places as the moon. Now, robots have even come into our homes. Some robots can see. They have TV cameras for eye
10、s. Many robots have computer brains (大脑). But what do they look like Some robots look like persons but many do not. Robots are very useful to us. They can do not only simple jobs for us, such as putting things into boxes, but also some difficult jobs like getting people out of fire and looking for m
11、inerals (矿物) in the deep sea. Men can get tired, and they need to sleep. But robots do not eat, sleep or get tired. They can work day and night. Robots can be a lot of fun. They can do jobs to make our life better. In the future, when we have robots in our homes, they will do much of the housework f
12、or us. They will wash the dishes, take our lovely dogs for walks, watch our homes, and even talk to us.What can robots do in future homesATalk to people.BHave fun like people.CKeep their own dogs. 5.What is the mother bear doing now in March Shes sleeping. Last autumn, after having eaten very well,
13、she made a den, covering the inside with dry grass, under a tree. In the beginning of winter, she went into it. What a fine place it is, she thought to herself, and how nice and warm! Ill spend all winter in here. She went to sleep at once, but she did not fall into a very deep sleep. For, in Januar
14、y, the mother bear has given birth to baby bears. While still half sleeping, she has licked (舔) them clean. Her body clock will go off in April. And then she will go out of her den to look for food: food for herself and for her young. The babies will be a lot bigger by then. As soon as it is warm en
15、ough, the family will leave the den and the mother bear will start teaching the baby bears the lessons of life. To catch their attention (注意), she gives some caresses (爱抚), but when the babies do not listen to her, she will beat them. This is the way for all the bears in the world, whether in Europe
16、, in Asia, or in America.What will the mother bear do when the babies do not listen to herAShe will lick them.BShe will beat them.CShe will give them food. 6.W: Did you know it was going to rain todayM: Absolutely not. This comes as a big shock to me, especially since the paper says mostly sunny.W:
17、Well, I guess the paper must have meant mostly sunny somewhere else. But since we’ve come out this way, why don’t we just move the blanket under that treeM: That’s a good idea. It looks like it’s still dry there, as long as it doesn’t start to come down any harder.W: Yo
18、u didn’t happen to bring us a spare blanket, did you Because this one is all wet now.M: No. But I do have some folding stools in the car. Will they doW: They’ll be just fine. I’m really hungry. So while you’re there, how about bringing out the foodM: I thought you were bringi
19、ng the food.W: This is unbelievable. If I weren’t so hungry, this would be really funny. So what nowM: What’s the name of the restaurant which you like so muchWhat are the speakers doing().A. Visiting the new restaurant.B. Watching a parade.C. Having a picnic.D. Going to the beach.7.It o
20、ught to be remembered that, as indisputably great a player as Wilt Chamberlain was, he often evoked a public awe closer to loathing than admiration. No one roots for Coliath, he lamented to his Los Angeles Lakers teammate Jerry West. The observation was both personally felt and generally interesting
21、 in what it says about the way people look at giants. Size(which matters)is an accident of biology, but we tend to treat it as an implicit assault on the averageness of the rest of us-a potential menace, an insulting excess-and there is a universal desire to see the big man fall.Chamberlain, who die
22、d last week at the age of 63, not only dominated basketball, his presence clarified the character of the game. If sports were poems, baseball would be a sonnet, basketball free verse, the thing finds its form according to who is doing it. Chamberlain was responsible for major rule changes that alter
23、ed basketball’s structure-all delimiting the ability of giants to operate in the sky over a 10-ft. -high basket. By his athleticism, he proved that basketball required the world’s best athletes, not simply the tallest. And, in a way, he also showed it to be a team sport, No matter how ta
24、lented an individual is, no one player, including the divine Michael, can beat a well-coordinated group of five.Quantity defined his life and was its curse. His statistics, like his being seemed to have no relation to a terrestrial reality. On March 2, 1962, he set a National Basketball Association
25、record by scoring 100 points in a game against the New York Knicks. He scored the most points in a season (4,029);had 50 or more points in a game 118 times; set the record for career rebounds (23,924), rebounds per game (22.9), average points in one season(50.4) . Other numbers recalled last week: s
26、even straight scoring titles and 11 rebound titles (in 14 seasons). To show how complete a player he was, his most remarkable stat may be that in 1968, he led the league in assists.Not once did he foul out of a game, which says something about the way he played and who he was. Chamberlain hardly eve
27、r got into a fight-partly because only the ostentatiously suicidal would start up with him, more because he seemed to appreciate the gentleness that his construction required. He picked opposing players off the floor when they tripped and fell. That weird shot of his-the monstrous and graceful Dippe
28、r Dunk-had the look of a man pouring lava from a vat into a teacup.The first paragraph points out that people().A. were in awe upon ChamberlainB. admired Chamberlain very muchC. often greatly disliked ChamberlainD. treated Chamberlain as an assault on us8.W: Prof Schneider, you and three colleagues
29、just published new research in the Proceedings of the National (US) Academy of Sciences. Could you explain what this tells usM: Many current investigations into climate change rely on statistical or physical models-and all models rely on assumptions.We thought why not ask plants and animals directly
30、 if they have felt any climate changes lately We wanted to find out if nature had more credible answers than models alone the animals and plants in nature can give us independent evidence of human induced global warming.So we looked at more than 130 different plant and bird species in the northern h
31、emisphere-mainly in Northern America and Europe-to see how flowering and migration times have changed. And we compared our findings with a state-of-the-art climate model driven by natural forces like volcanic eruptions, human pressures like greenhouse gas emissions and the combination.Normally, such
32、 model-driven results are compared to temperature measurements such as thermometers, weather balloons, and satellites-all of which have controversies attached as to their reliability. So we just jumped over the controversy by using plants and animals as surrogate thermometers to see if a clear signa
33、l emerged.W: And what was the resultM: First of all, you can today clearly see how much earlier plants flower in spring-in the thirty years from 1970 to 2000, flowering has moved to an earlier moment by almost ten days. The best fit with the species records came from the computer model driven by the
34、 combination of natural and human pressures. In fact the strongest single factor is human forces like greenhouse gases and industrial hazes.Secondly you can see that this is in accordance with the climate model that we used a standard model on which many climate scientists rely. So the research show
35、s once more that the general results of the model calculations actually are true-we can see the same basic things the model predicts going on in nature.What was the research about().A. Establishing physical modelsB. Establishing statistical models.C. Making assumptions about climate change.D. Findin
36、g evidence in animal and plant species.9.People’s attitude toward drugs has become to resemble an emotional roller coaster, careening wildly from dizzy heights of pharmacologic faith to gloomy terror over drug hazards. A host of dreaded killers that had tyrannized the world for centuries can n
37、ow be cured. That is a cause for some to regard drugs as miraculous. On the other hand, there are hundreds of pitifully deformed babies born of mothers who had taken thalidomide - the very thought of them causes terror.What is the-sensible attitude toward drugsI think the first thing to think about
38、is the differences between drugs and wonder drugs. The antibiotics, such as penicillin, can really cure certain bacterial diseases. On the other hand, the major diseases threatening Americans today are cancer, stroke, hypertension, coronary disease, arthritis and psychoses. Against them, the doctor&
39、rsquo;s bag of tricks is limited. He has no wonder drug.Of course, many patients suffering from these illnesses can be improved by taking drugs and a few can be dramatically helped. But no drug has cured a single case of schizophrenia or rheumatoid arthritis, in the way that penicillin can cure pneu
40、monia or meningococcal meningitis.So the first important lesson is not to expect too much from drugs. Too many patients exert unholy pressures on doctors to prescribe for every symptom, even when such treatment is unwarranted or dangerous.Unfortunately, the medical profession is guilty of some compl
41、icity here The patient who demands a shot of penicillin for every sniffle and sneeze may be given the injection by a reluctant physician because he is certain that if he does not, the patient will search until he or she finds a doctor who will.More important, the physician is apt to be a willing col
42、laborator in over-medication because he, too, has been oversold on drugs. He is rarely at a loss for a remedy that might be just what the patient needs. Doctors want their patients to get well. They also derive feelings of power and ego-satisfaction from the ability to pre- scribe the latest drugs.A
43、t the other extreme is the patient who is suspicious of all medications. In the category are the patients who never take an aspirin tablet because they believe that every aspirin you take leaves a scar on the lining of your stomach.Without doubt, such ill-advised behavior is at times traceable to lu
44、rid accounts of drug dangers. Not long ago, when one antidepressant drug was temporarily withdrawn from the market by the Food and Drug Administration, radio and television stations in New York carried stories about that. Patients were advised by commentators not to take any medication at all. The r
45、esulting hysteria in hundreds of patients was as real as it was predictable.The author thinks that peoples attitude toward drugs resemble a roller coaster because both cases ().A. involve exciting experiencesB. contain extremitiesC. make people either dizzy or faithfulD. may result in danger10.Stati
46、stically, each of these new changes in law-enforcement has made some difference to the picture. Yet it seems probably that the factors that have really brought the crime rates down have little to do with policemen or politicians, and more to do with cycles that are beyond their control.The first of
47、these is demographic. The fall in the crime rate has coincided with fall in the number of young men between the ages of 15 and 21, the peak age for criminal activity in any society, including America. In the same way, the rise in the crime rate that started in the early 1960s coincided with the teen
48、age years of the baby-boomers. As the boomer generation matured, married, found jobs and shoulder mortgages, so the crime rate fell.This encouraging trend was quickly overshadowed, starting in the mid-1980s, by a new swarm of teenagers caught up in a new sort of depravity: the craze for crack cocaine. Crack brought with it much higher levels of violence and, in particular, soaring rates of handgun murders by people less than 25 years old. Yet the terror became too much, and the young began to leave crack alone. Within a few years, at least