青海省湟川中学2020-2021学年高二上学期期末考试英语试卷.docx

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1、青海湟川中学2020-2021学年上学期高二年级英语期末考试试卷第一部分：听力（共两节，满分30分）第一节（共5小题；每小题1.5分，满分7.5分）请听下面5段对话，选出最佳选项。1. What time is it now probably? A. 3:10 B. 3:30 C. 3:50 2. How did the job interview make the man feel? A Excited. B.Discouraged. C Confused. 3. What are the speakers mainly talking about? A.Where to sit in th

2、e theatre. B.How to book show tickets. C.When to meet the actors.4. Where did the man probably leave his sunglasses? A. In the car. B. In the restaurant. C. In the shop5. What does the woman want to do? A. Remove the plants. B. Build the pool. C. Improve the shade.第二节（共15小题；每小题1.5分，满分22.5分）请听下面5段对话或

3、独白，选出最佳选项。请听第6段材料，回答第6、7题。6.What club does the woman belong to now? A. The fencing club. B. The hanggliding club. C.The table tennis club.7 How much is the registration fee for freshmen?A. $20 B. $25 C. $30请听第7段材料，回答第8、9题。8. How long did Alicia Alonso live? A. For 75 years. B. For 89 years. C. For 9

4、8 years.9. How does the woman know the ballet school? A. From a book. B. From a friend. C. From a performance.请听第8段材料，回答第10至12题。10. When will the woman come hack probably? A. At the end of August B. At the beginning of September. C. In the middle of September.11. Which kind of insurance will the wom

5、an choose? A. Standard. B. Super C. Superplus.12. What is the woman probably interested in? A. The river trip B. The arts museums C. The picnic lunches.请听第9段材料，回答第13至16题。13.Whats the possible relationship between Carol and Paul? A. Teacher and student. B Wife and husband. C. Librarian arid applicant

6、14.For what books does the library have an expanded section? A. Travel books B. History books. C. Reference books15. What can the man do in the library on Saturday? A. Do some experiments. B. Get IT support. C. Join a reading contest.16. What will the man probably do next? A. Check wall charts. B. F

7、ind greeting cards. C. Buy comic books.请听第10段材料，回答第17至20题。17.Who play the most important part in the workshop? A. African artists. B. Asian artists. C. American artists.18.What do artists not choose to use to make jewellery in the workshop? A. Shells. B. Diamonds. C.Seeds 19.What do most artists lik

8、e to do to get their ideas? A. Listen to music. B. Do some drawings. C. Walk around streets.20.Where do people wear the workshops best-known jewellery? A. In the ear. B. Around the neck. C. In the hair. .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，从每题所给的四个选项（A, B, C, D）中，选出最佳选项。A The Thomas Fir

9、e was the biggest wildfire California had ever experienced - at the time. It painted the sky orange and brown, ash falling over a wide area. Tanika Ladd, a graduate student at the University of California wondered how the ash might affect marine (海洋的) life offshore. So she collected some ash and too

10、k the samples to the lab to find out. The tests suggest that nutrients from the ash could promote phytoplankton growth, particularly during times of the year when the ocean is short of nutrients. Tiny floating organisms, called phytoplankton, rarely have the nutrients they need to grow in much of th

11、e ocean, and they take nutrients from wherever they can find them, even from atmospheric sources. Past studies on volcanoes have revealed how eruptions pumping iron-rich ash into the atmosphere could feed phytoplankton downwind, and dust from the Sahara has long been recognized as a “sandy fertilize

12、r” for ocean plants. However, much less attention has been paid to the impact of wildfire ash. Ladd and her colleagues mixed the ash with seawater in the lab. Then the researchers enriched tanks full of naturally occurring marine phytoplankton communities and let them grow outside in natural light c

13、onditions. At four different times over a week, they measured biomass and nutrients in the water. They repeated the experiment during each season. In the experiments, the phytoplankton greedily sucked up the available nitrogen coming off the ash. The additional nitrogen helped phytoplankton communit

14、ies grow more during the summer, fall, and winter. Phytoplankton in the spring, on the other hand, showed less of an effect since the ocean has a flood of nutrients in the spring, Ladd noted that the study is one of the first to link wildfire ash and marine systems, but many unknowns remain, such as

15、 the amount of ash deposited and what happens to it when it settles on the ocean. Ladd plans to analyze the phytoplanktons DNA to see whether the ash benefits certain species more than others. In an introductory analysis, Ladd found that the ash did not seem to change the abundance of one particular

16、 type of phytoplankton, but further analysis is needed.21. What did the researchers do in the experiments? A. They provided phytoplankton in the tanks with a sandy fertilizer. . B. They kept a regular record of biomass and nutrients in the tanks, C. They exposed phytoplankton in the tanks to strong

17、tight. D. They mixed volcanic ash and seawater in the tanks.22. What might Ladd do next? A. Fully explore the composition of wildfire ash. B. Calculate the amount of deposited wildfire ash. C. Find out what happens after the ash falls on the ocean. D. Further test whether the ash gives certain speci

18、es an advantage.23. What might be the best title for the text? A. Wildfire ash is choking marine life. B. Wildfire ash feeds the oceans tiny life forms C. Marine atmospheric environment fuels the wildfires. D. Marine animals are suffering from a shortage of nutrients.B In an office building of Helsi

19、nki, Finland，a social worker is meeting six elderly people for lunch - via tablets propped on their kitchen tables. While many countries with growing elderly populations are building new care homes, Finland is looking after people in their own homes - by means of technology.The most common reason fo

20、r a home visit by a social worker is to check that Grandma is taking her medicine. A pill-dispensing (配药的) robot in her home can do that. Each holds a two-week supply of multiple drugs, gives a reminder when it is time to take them and dispenses the right combination. For one in five people who try

21、them the robots dont work, usually because Grandma is reluctant to take lots of pills. But for the rest, they have cut medication-related visits from 30 to just four a month. The idea of old folk living alone perhaps worries Finnish people less than many others; Finns pride themselves on their rugge

22、d self-reliance. A welcome pack for foreign journalists includes a book of cartoons depicting “Finnish nightmares”, such as having to say “hello” to a neighbour. Social isolation, however, is a big problem for the elderly because it leads to faster cognitive and physical decline. To deal with that,

23、Helsinki runs virtual get-togethers for its homebound elderly. These should be regarded as extras, though. A degree of personal interaction, not just the virtual kind, is surely necessary even for Finns. The biggest challenge for both humans and devices is to spot problems early. Local tech companie

24、s, including MariCare Oy and Benete, have developed systems to gather data on things like how often a person visits the bathroom or opens the fridge. Care workers use such data to prioritise whom to visit and what to check for. Not opening the fridge as often, for example, is a hint that memory prob

25、lems may be getting worse. The biggest gain from technology may be that it makes it easier to keep old people fit enough to remain in their own homes. This is much cheaper, and usually nicer, too.24. How does Finland look after its elderly A. By building more new care homes. B. By offering them remo

26、te-care services. C. By increasing the population of social workers. D. By creating more senior-accessible public areas.25. How can a pill-dispensing robot help? A. It comforts the elderly reluctant to take pills. B. It reminds nurses to restore an elderlys drug supply. C. It ensures the doctors giv

27、e the right combination of pills. D. It saves social workers the trouble of frequent home visits.26. What might the author suggest the Finns do? A. Make some face-to-face contact. B. Stick to their tradition of self-reliance. C. Run as many virtual get-togethers as possible. D.Keep a safe social dis

28、tance with their neighbours.27.What is a shared goal of MariCare Oy and Benete? A. Freeing the homebound elderly from restrictions. B. Helping the elderly suffer less from memory loss. C. Identifying potential health problems of the elderly. . D. Developing household systems suitable for the elderly

29、.C Since apps like Uber and Lyft came on the scene, ridesharing services have dramatically changed the way people get around. A new study out of Columbia University reveals a downside of these services. It turns out that ridesharing trips cause an increase in the number of accidents involving motori

30、sts and pedestrians at pick-up and drop-off locations. Previous studies on the relationship between ridesharing services and vehicle crashes compare cities where ridesharing services are available with cities where they are not, and this makes results somewhat ambiguous. In this study researchers an

31、alyze individual trips to make the picture a little clearer. Researchers analyzed data from 372 million ridesharing trips in New York City between 2017 and 2018. Whenever a crash occurred in the city, they calculated the number of ridesharing trips that began or ended in the area at the time of the

32、accident. They compared this with the number of trips that took place in the same location one week before and one week after the crash. Researchers did the same calculations for regular taxi rides as part of their analyses. Also, separate analyses were performed based on the type of people injured

33、in the crash: pedestrians, motorists or cyclists. The results of the analyses show that the rise in ridesharing trips is associated with an increase in the number of accidents involving pedestrians and motorists, but not cyclists. Furthermore, they did not find this same association between taxi tri

34、ps and accidents. “Ridesharing is changing the way we move around cities.”says first author Christopher Morrison.“It is becoming clear that the technology reduces alcohol-related crashes，but these benefits do not seem to extend to the overall number of crashes.These findings help explain why that mi

35、ght be because the reductions in alcohol-related crashes are offset by increases in other types of crashes.” Researchers hope that cities and ridesharing services will use the results of this study to rake measures that might reduce the number of crashes. “In crowded areas with large numbers of ride

36、share pick-ups and drop-offs, cities could consider building taxi-rank style infrastructure (基础设施) to protect pedestrians and prevent crashes.” concludes Morrison.28.What do we know about previous studies on ridesharing services? A. Their analysis is hardly reliable. B. Their findings are rather rid

37、iculous, C. Their research method is out-of-date. D. Their research sample is not wide enough.29.What can be said about the number of ridesharing trips a week before a vehicle-pedestrian crash? A. It was uncertain. B. It was relatively low. C. It was unexpectedly high. D. It was the same as a week l

38、ater.30.What fact does the underlined word “that” in Paragraph 5 refer to?A. Ridesharing reduces alcohol-related crashes.B. Ridesharing doesnt increase accidents involving cyclists.C.Various types of crashes increase with ridesharing services,D .Overall crashes dont decrease along with alcohol-relat

39、ed crashes.31.What does Morrison suggest in the last paragraph? A. Improving infrastructure to expand taxi services. B. Banning ridesharing services in crowded places.C. Constructing some stops for ridesharing vehicles.D. Reducing the number of pick-ups and drop-offs.DIn the good old days, gold mine

40、rs could seek out visible spots of bling at the surface in order to find deeper, richer veins (矿脉). These days, prospectors must examine samples of dirt for more minute traces suggestive of a hidden mine below. Analysing water from boreholes(钻孔) can also provide clues, but boreholes are scarce and n

41、ew ones are costly and time-consuming to drill. Trees offer an alternative that has come off in Australia. The idea has been around since the 1940s but, until now, never practical. Some trees have roots that reach deep underground, drawing up water and, along with it, tiny quantities of minerals tha

42、t end up distributed throughout the tree. In this way, even lofty leaves bear traces of what lies far beneath. In areas where there is no gold. leaves may have a background level of 0.15 parts per billion (ppb) of gold; on gold-rich sites that can rise to 4ppb. In proof-of-principle studies over the

43、 last few years, Nathan Reid and his team at CSIRO, Australia s national science agency. have shown that biogeochemical prospecting closely agrees with the surface and groundwater analyses. Inspired by these results. Marmota, an exploration firm, put the method to the test at its Aurora Tank site, 5

44、0km from the highly-productive Challenger mine in South Australia. Leaves collected immediately around a known deposit that lies beneath ten metres of rock contained traces of gold. Further samples were taken 40 metres apart around known deposits. and at wider spaces farther out. This turned up seve

45、ral anomalies, where gold seemed to be present but other tests had shown nothing. “usual surface sample testing was saying Dont drill here,” says Colin Rose, Marmotas executive chairman. “but the tree sampling was saying Drill here.” Then came the pay-off. Drilling revealed a five-metre-thick vein w

46、ith 27g of gold per tonne, more than 30 metres below the surface. A metre-thick inner layer held an impressive 105g per tonne. Marmota is keen to explore further. Prospecting with trees is starting to look less like a scientific curiosity and more like a golden opportunity.32. What is Paragraph l ma

47、inly about? . A. Challenges facing previous gold miners. B. Important clues about richer gold veins. C. Conventional ways of gold prospecting. D. Problems brought by drilling boreholes.33.What does the underlined part “come off ” in Paragraph 2 mean? A. Produced an unexpected outcome B. Obtained a successful result C. Reached a full agreement D. Received immediate acceptance34. What can be learned