云南省高三英语模拟试题及答案一.docx

1、云南省高三英语模拟试题及答案一云南省2020年高考英语模拟试题及答案（一）（试卷满分150分，考试时间120分钟）考生注意事项：1.答卷前，着生务必将自已的姓名、准考证号填写在答題卡上。2.回蓉选择题时，选出每小题答案后，用2B铅笔把答題卡上对应题目的答案标号涂黑。如需改动，用橡皮擦干净后，再选涂其他答案标号。回答非选择题时，将答案写在答题卡上，写在本试卷上无效。第一部分 听力(共两节，满分30分)（略）第二部分 阅读理解(共两节，满分40分)第一节 (共15小题;每小题2分，满分30分)阅读下列短文，从每题所给的A、BC和D四个选项中，选出最佳选项。AWith its snow-covere

2、d mountains and a variety of wildlife, Yellow Stone National Park is one of the scenic treasures of the United States. Located primarily in Wyoming, the park hosts millions of visitors every year. If you plan to travel within the park, keep in mind advice from the National Park Service.Seasonal Trav

3、elTravel varies vastly from season to season. Roads are generally open in the summer except for cases of rock or mud slides, wild fires, accidents or road construction. Early snows in the fall can cause some roads to close temporarily. In the winter almost all roads are closed to motor vehicles, but

4、 snowmobiles and other snow vehicles with tracks are allowed. Roads begin to open for the spring by the latter part of April but can close if snowfall continues.Driving TimeGrand Loop is the main road through Yellowstone National Park; it passes by most of the major attractions. These include Old Fa

5、ithful, Yellowstone Lake and the Grand Canyon of Yellowstone. The maximum speed limit on the Grand Loop is 45 miles per hour, but the speed limit drops during some of the winding and twisting sections of this narrow road. Allow yourself at least two days to fully travel the loop due to the size of t

6、he park and being sometimes stuck in heavy traffic.Safety AwarenessBuffalo(水牛)often block the roads in the park as they move through the fields. If a group is traveling across the road you are on you can either wait for them to pass or find an alternative route. If you get out of your vehicle, the N

7、ational Park Service says to stay at least 25 yards from any buffalo (and 100 yards or more away from bears and wolves). Buffalo are particularly unpredictable and charge people at speeds up to 30 mph.You can take your bicycle on any public roads and routes designed for bikes, but bicycles are not a

8、llowed on the park roads which are narrow with few shoulders. Altitudes range from 5, 300 to 8, 860 feet. The National Park Service recommends cyclists wear helmets and noticeable clothing.1. What do we know about travelling in the Yellowstone Park?A. Roads will stay open in case of emergency.B. Tra

9、ffic jam happens from time to time.C. The driving speed on the road can be 50 mph.D. Motor vehicles are allowed in the winter.2. What does the National Park Service suggest people do about safety?A. Stay inside the car throughout the travel.B. Get out of their vehicles when coming across the Buffalo

10、.C. Wear the easy-to-see clothes while bicycling.D. Avoid bicycling on the public roads.3. From which is the text probably taken?A. A guidebook. B. A commercial advertisement.C. A research paper. D. A geography textbook.BMost adults firmly believe that as kids reach their teens, they start to take c

11、razy risks that get them in trouble. Do teenagers simply love taking all risks much more than adults? A recent study suggests otherwise.Scientists designed a simple experiment involving 33 teenagers and three other age groups. In the experiment, the researchers tried to distinguish between two very

12、different kinds of risk-taking. The first they called a willingness to take known risks (when the probability of winning is clear) and the second they called a willingness to take unknown risks (when the possibility of success is uncertain).The study offered participants the opportunity to play two

13、kinds of games. They had the chance to win money, with one game offering a known risk and the other offering an unknown risk. On each round of the game, each participant had to choose between taking a sure $5 and known or unknown risks of winning a lot more. If on one particular round they had picke

14、d the $5 for sure choice, then they got $ 5. But if on that round they had chosen to take a risk, the rules of the game will determine whether or not they had won. If they did win, they went home with between $8 and $125. And, of course, if they lost, they went home with nothing.What the scientists

15、found was really quite surprising. It turned out that the average teenager was very hesitant when risks were knownmore careful than college students or parents-aged adults, and about as careful as grandparent-aged adults. This means that when the risks were known, teenagers were not risky in their b

16、ehavior at all. Only when the risks were unclear did teenagers choose them more often than other groups. Under those kinds of conditions, they were much more willing to take a risk than any other group.So, what does all of this mean? The research suggests that adults should probably focus more energ

17、y on trying to educate teenagers about risks than limiting them. Teenagers who understand the risks associated with a decision are more likely to be careful in their behavior.4. This experiment was carried out byA. dividing the teens into three groupsB. comparing the reactions to different risksC. g

18、iving equal amount of awards to the participantsD. observing the emotional changes of the teenager5. When facing known risks, teenagers tended to be _.A. ambits B. cautiousC. anxious D. curious6. Which group in the study were more likely to take unknown risks?A. Teenagers. B. College students.C. Par

19、ent-aged adults. D. Grandparent-aged adults.7. According to the study, parents should focus on _.A. guaranteeing children to be carefulB. setting age limits on dangerous activitiesC. respecting teens to make their own choicesD. guiding teens to learn more about the effect of risksCTrees, some of the

20、 tallest in the world, towered above Hannah Griffiths and her colleagues each morning as they walked deep into the rainforest in the Maliau Basin in Borneo, where they had set up a set of experiments to look at the ecological effects of small creatures: termites (白蚁).Termites get a bum rap. They mak

21、e headlines for chewing up billions of dollars of property each year in the U. S. And they are responsible for something like two percent of global carbon emissions, simply as a result of their huge populations and preference for chewing through carbonrich materials. A whole industry is aiming at ki

22、lling them.But they play a key role in many natural ecosystems. Scientists have known for years that in tropical (热带的) forests, termites chew up fallen leaves and dead wood, keeping the fallen material under control and letting nutrients from the dead material back into the system to be used by othe

23、r plants, insects, and animals. But they didnt know exactly how important the insects were in keeping the forest healthy and functional, so they removed termites from a particular spot in the forest and saw how it responded.As luck would have it, Hannah Griffiths and her colleagues started their exp

24、eriment when the forest was hit by an extreme drought (干旱). During the non-drought years, they saw there wasnt much difference between the normal plots and the ones where theyd removed the termites. But during the drought, the effects were marked. What they found was unexpected: in the termite-rich

25、areas, the soil stayed slightly wet, more tree seedlings sprouted (抽芽), and the system was full of activity despite the long, hard dry spell.For Griffiths, it was only because they happened to study the drought that they could pick out the real importance of termites to the system, she points out. “

26、And that rings alarm bells in my head,” she says, “because it makes me think, well what else dont we know? If we start damaging biological communities, we dont know what that will do.”8. Which of the following best explains “a bum rap” underlined in Paragraph 2?A. Unfair blame. B. Wide popularity.C.

27、 Public attention. D. Special preference.9. What have scientists learned about termites?A. They do serious harm to tropical rainforests.B. They contribute a lot to the ecosystem they live in.C. They act as food for other plants, insects and animals.D. They speed up the loss of nutrition in the rainf

28、orest.10. What can we infer from the finding of Griffiths experiment?A. Termites help rainforests survive climate change.B. Termites prefer drought years to non-drought ones.C. Termites benefit more from the forest during the drought.D. Termites enjoy eating tree seedlings during the drought.11. Wha

29、t does Griffiths tell us in the last paragraph?A. Termites are now in danger of extinction.B. Termites damage biological communities.C. We should think twice before damaging a species.D. We should study the drought to improve the system.DIf humans pump enough carbon dioxide (CO2) into the atmosphere

30、, the stratocumulus clouds(层积云 ) could disappear, and the earths temperature could climb sharply to heights not predicted in current climate models. It would burn the planet. Thats the conclusion of a paper published in the journal Nature Geoscience and described in detail by Natalie Wolchover for Q

31、uanta Magazine.As Wolchover explained, clouds have long been one of the great uncertainties of climate models. Computer models that easily capture the complexity and detail of most climate systems just arent powerful enough to predict worldwide changes in cloud behavior. But clouds are important. Th

32、ey reflect sunlight away from the earths surface. And stratocumulus clouds are those white blankets you might have seen as you looked out the window of arm airplane, rolling out below you and hiding the ground Researchers suspect that certain sudden, past jumps in temperature may have been caused by changes to clouds like these.For the new research, scientists modeled just a small patch of sky using a supercomputer. They found that if carbon dioxide levels reach about 1, 200 parts per million(ppm) in the at