2019年高考英語(yǔ) 高考真題和高考模擬題分項(xiàng)版匯編 專(zhuān)題05 閱讀理解（含解析）

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1、2019年高考英語(yǔ)真題和模擬題分項(xiàng)匯編 專(zhuān)題05 閱讀理解 一、2019年高考真題 I.應(yīng)用文 1. 【2019·全國(guó)卷I，A】 Need a Job This Summer? The provincial government and its partners offer many programs to help students find summer jobs. The deadlines and what you need to apply depend on the program. Not a student? Go to the government websit

2、e to learn about programs and online tools available to help people under 30 build skills, find a job or start businesses all year round. Jobs for Youth If you are a teenager living in certain parts of the province, you could be eligible(符合條件)for this program. Which provides eight weeks of paid em

3、ployment along with training. Who is eligible: Youth 15-18 years old in select communities(社區(qū)). Summer Company Summer Company provides students with hands-on business training and awards of up to $3,000 to start and run their own summer businesses. Who is eligible: Students aged 15-29, returning

4、 to school in the fall. Stewardship Youth Ranger Program You could apply to be a Stewardship Youth Ranger and work on local natural resource management projects for eight weeks this summer. Who is eligible: Students aged 16 or 17 at time of hire, but not turning 18 before December 31 this year.

5、Summer Employment Opportunities(機(jī)會(huì)) Through the Summer Employment Opportunities program, students are hired each year in a variety of summer positions across the Provincial Public Service, its related agencies and community groups. Who is eligible: Students aged 15 or older. Some positions require

6、 students to be 15 to 24 or up to 29 for persons with a disability. 21. What is special about Summer Company? A. It requires no training before employment. B. It provides awards for running new businesses. C. It allows one to work in the natural environment. D. It offers more summer job opportu

7、nities. 22. What is the age range required by Stewardship Youth Ranger Program? A. 15-18. B. 15-24. C. 15-29. D. 16-17. 23. Which program favors the disabled? A. Jobs for Youth. B. Summer Company. C. Stewardship Youth Ranger Program. D. Summer Employment Opportunities. 【語(yǔ)篇解讀】本文為應(yīng)用文。本文敘述了省政府及其合

8、作伙伴提供了許多項(xiàng)目來(lái)幫助學(xué)生暑期在找到工作。 21.B 【解析】細(xì)節(jié)理解題。根據(jù)Summer Company部分中的“Summer Company provides students with ...awards of up to ＄3,000 to start and run their own summer businesses” 可知“Summer Company為學(xué)生提供高達(dá)3000美元的獎(jiǎng)勵(lì)，來(lái)開(kāi)始和經(jīng)營(yíng)他們自己的暑期業(yè)務(wù)”。“start and run their own summer businesses”即“為開(kāi)辦新的業(yè)務(wù)”，這對(duì)應(yīng)B項(xiàng)中的“runn new busine

9、sses”，二者是詞義之間的轉(zhuǎn)述關(guān)系。故選B。 22.D 【解析】細(xì)節(jié)理解題。根據(jù)Stewardship Youth Ranger Program部分中的第二段“Who is eligible: Students aged 16 or 17 at time of hire, but not turning 18 before December 31 this year.”可知“符合條件的學(xué)生：16歲或17歲的學(xué)生，但在今年12月31日之前未滿(mǎn)18歲”。由此得出，這個(gè)項(xiàng)目要求年齡在16-17歲之間。分析選項(xiàng)可知D項(xiàng)符合題意，故選D。 23.D 【解析】細(xì)節(jié)理解題。根據(jù)Summer Emplo

10、yment Opportunities部分中的最后一段最后一句“Who is eligible: ...Some positions require students to be 15to 24 or up to 29 for persons with a disability”,可知Summer Employment Opportunities有些職位是給殘疾人的。分析選項(xiàng)可知，D項(xiàng)符合題意，故選D。 2. 【2019·全國(guó)卷II，A】 My Favourite Books Jo Usmar is a writer for Cosmopolitan and co-author of t

11、he This Book Will series(系列)of lifestyle books. Here she picks her top reads. Matilda Roald Dahl I once wrote a paper on the influence of fairy tales on Roald Dahl's writing and it gave me a new appreciation for his strange and delightful words. Matilda's battles with her cruel me parents and the

12、 bossy headmisres，Miss Trunchbull，are equally fumy and frightening，but they're also aspirational. After Dark Haruki Murakami It’s about two sisters-Eri，a model who either won’t or can’t stop sleeping，and Mari, a young student . In trying to connect to her sister. Mari starts changing her life and

13、 discovers a world of diverse ”night people” who are hiding secrets. Gone Girl Gillian Fynn There was a bit of me that didn't want to love this when everyone else on the planet did but the horror story is brilliant. There's tension and anxiety from the beginning as Nick and Amy battle for your tr

14、ust. It's a real whodunit and the frustration when you realise what's going on is horribly enjoyable The Stand Stephen King This is an excellent fantasy novel from one of the best storytellers around. After a serious flu outbreak wipes out 99.4% of the world's population, a battle unfolds between

15、 good and evil among those let. Randall Flagg is one of the scariest characters ever. 21. Who does "I" refer to in the text? A. Stephen King. B. Gillian Flynn. C. Jo Usmar. D. Roald Dahl 22. Which of the following tells about Mari and Eri? A. Cosmopolitan. B. Matilda. C. After Dark. D. The Sta

16、nd. 23. What kind of book is Gone Girl?) A. A folk tale. B. A biography. C. A love story. D. A horror story. 【語(yǔ)篇解讀】 這是一篇應(yīng)用文。短文介紹了作家Jo Usmar最喜歡的書(shū)籍。 21.C 【解析】細(xì)節(jié)理解題。由Matilda中的“I once wrote a paper on the influence of fairy tales on Roald Dahl’s writing and it gave me a new appreciation for his s

17、trange and delightful words”可知，我曾經(jīng)寫(xiě)過(guò)一篇關(guān)于童話(huà)故事對(duì)羅爾德·達(dá)爾寫(xiě)作有影響的論文，這篇論文讓我對(duì)他奇怪而有趣的文字有了新的認(rèn)識(shí)。所以Jo Usmar在介紹Matilda這本書(shū)，用第一人稱(chēng)“I”口吻來(lái)說(shuō)明自己曾經(jīng)寫(xiě)過(guò)一篇關(guān)于童話(huà)故事對(duì)羅爾德·達(dá)爾寫(xiě)作有影響的論文。所以“I”指的是Jo Usmar。故C選項(xiàng)正確。 22.C 【解析】細(xì)節(jié)理解題。由After Dark中的“It’s about two sister-Eri,a model who either won’t or can’t stop sleeping, and Mari,a young

18、student”可知，故事講的是兩個(gè)姐妹---Eri是一個(gè)突然一覺(jué)不醒的模特?，旣?，是一個(gè)充滿(mǎn)青春活力的 上和古董店里尋找舊的軍隊(duì)勛章，然后將這些勛章歸還它們的合法主人。文章主要敘述了他這一愛(ài)好的起源。 21.A 【解析】細(xì)節(jié)理解題。根據(jù)第二段中的“Zac knows the meaning of a Purple Heart—he earned one himself in a war as a soldier”可知，當(dāng)Zac還是一名士兵的時(shí)候，在一次戰(zhàn)爭(zhēng)中他獲得了一枚Purple Heart。故A選項(xiàng)正確。 22.B 【解析】推理判斷題。根據(jù)第三段中的“To drive e

19、ight hours to come to see me”可以推知，Adeline為了那枚Purple Heart開(kāi)車(chē)八個(gè)小時(shí)來(lái)見(jiàn)Zac，由此可知，她對(duì)于這件事是認(rèn)真地。因此，At that point, I knew she meant business應(yīng)該指的是Zac意識(shí)到Adeline對(duì)這枚勛章是認(rèn)真的。故B選項(xiàng)正確。 23.D 【解析】推理判斷題。根據(jù)第四段中的“Corrado, a translator…was killed in action in Europe”和倒數(shù)第三段中的“as I grew older…and missed my brother more and

20、more, I realized that was the only thing we had left ”這枚勛章寄托了Adeline對(duì)于去世的哥哥Corrado的回憶和思念，這是他們家留下的唯一關(guān)于哥哥的東西了。因此她很珍惜這枚勛章。故D選項(xiàng)正確。 8. 【2019·浙江卷，B】 Money with no strings attached. It’s not something you see every day. But at Union Station in Los Angeles last month, a board went up with dollar bills att

21、ached to it with pins and a sign that read, "Give What You Can, Take What You Need." People quickly caught on. And while many took dollars, many others pinned their own cash to the board. “People of all ages, races, and socio-economic(社會(huì)經(jīng)濟(jì)的)backgrounds gave and took, ”said Tyler Bridges of The Tool

22、box, which created the project. "We even had a bride in her wedding dress come up to the board and take a few dollars." Most of the bills on the board were singles, but a few people left fives, tens and even twenties. The video clip(片段)shows one man who had found a $ 20 bill pinning it to the board.

23、 “What I can say for the folks that gave the most, is that they were full of smiles,” Bridges said. “There’s a certain feeling that giving can do for you and that was apparent in those that gave the most." Most people who took dollars took only a few, but Bridges said a very small number took as mu

24、ch as they could. While the clip might look like part of a new ad campaign, Bridges said the only goal was to show generosity and sympathy. He added that he hopes people in other cities might try similar projects and post their own videos on the Internet. “After all, everyone has bad days and good

25、 days," he said. “Some days you need a helping hand and some days you can be the one giving the helping hand.” 24. What does the expression "money with no strings attached" in paragraph 1 mean? A. Money spent without hesitation. B. Money not legally made. C. Money offered without conditions. D.

26、 Money not tied together. 25. What did Bridges want to show by mentioning the bride? A. Women tended to be more sociable. B. The activity attracted various people. C. Economic problems were getting worse. D. Young couples needed financial assistance. 26. Why did Bridges carry out the project?

27、 A. To do a test on people’s morals. B. To raise money for his company. C. To earn himself a good reputation. D. To promote kindness and sympathy. 【語(yǔ)篇解讀】這是一篇新聞報(bào)道。短文報(bào)道了上個(gè)月在洛杉磯的聯(lián)合車(chē)站,一塊牌子上別針別滿(mǎn)了美元，上面寫(xiě)著“給予你所能給與的，拿走你所需要的”。這樣的活動(dòng)吸引了各種各樣的人，組織者希望通過(guò)這樣的活動(dòng)來(lái)提倡仁慈和同情。 24.C 【解析】詞義猜測(cè)題。由第一段“But at Union Station

28、 in Los Angeles last month, a board went up with dollar bills attached to it with pins and a sign that read, "Give What You Can, Take What You Need.”可知，但是上個(gè)月在洛杉磯的聯(lián)合車(chē)站，一塊牌子上別針別滿(mǎn)了美元，上面寫(xiě)著“給予你所能給與的，拿走你所需要的”。所以通過(guò)下文的語(yǔ)境，判斷出第1段中的money with no strings attached是“無(wú)條件提供的錢(qián)”的意思。故B選項(xiàng)正確。 25.B 【解析】推理判斷題。由第二段““Peo

29、ple of all ages, races, and socio-economic（社會(huì)經(jīng)濟(jì)的）backgrounds gave and took, ”said Tyler Bridges of The Toolbox, which created the project. "We even had a bride in her wedding dress come up to the board and take a few dollars.”可知，發(fā)起該項(xiàng)活動(dòng)的泰勒·布里奇斯說(shuō):“所有年齡、種族和社會(huì)經(jīng)濟(jì)背景的人都會(huì)付出和索取?！鄙踔劣幸晃淮┲榧喌男履飦?lái)到了牌子前，拿走了一些錢(qián)。所以通

30、過(guò)泰勒·布里奇斯所說(shuō)的，可以判斷出，他提到新娘就是想說(shuō)明這項(xiàng)活動(dòng)吸引了各種各樣的人。故B選項(xiàng)正確。 26.D 【解析】細(xì)節(jié)理解題。由倒數(shù)第二段“While the clip might look like part of a new ad campaign, Bridges said the only goal was to show generosity and sympathy”可知，盡管這段視頻看起來(lái)像是一項(xiàng)新的廣告活動(dòng)的一部分，但是布里奇斯說(shuō)這次活動(dòng)唯一的目標(biāo)是表現(xiàn)出慷慨和同情。所以布里奇斯實(shí)施這個(gè)活動(dòng)是為了提倡仁慈和同情。故D選項(xiàng)正確。 III.說(shuō)明文 1. 【2019

31、·全國(guó)卷I，C】 As data and identity theft becomes more and more common, the market is growing for biometric(生物測(cè)量)technologies—like fingerprint scans—to keep others out of private e-spaces. At present, these technologies are still expensive, though. Researchers from Georgia Tech say that they have come u

32、p with a low-cost device(裝置)that gets around this problem: a smart keyboard. This smart keyboard precisely measures the cadence(節(jié)奏)with which one types and the pressure fingers apply to each key. The keyboard could offer a strong layer of security by analyzing things like the force of a user's typin

33、g and the time between key presses. These patterns are unique to each person. Thus, the keyboard can determine people's identities, and by extension, whether they should be given access to the computer it's connected to—regardless of whether someone gets the password right. It also doesn't require

34、a new type of technology that people aren't already familiar with. Everybody uses a keyboard and everybody types differently. In a study describing the technology, the researchers had 100 volunteers type the word “touch”four times using the smart keyboard. Data collected from the device could be us

35、ed to recognize different participants based on how they typed, with very low error rates. The researchers say that the keyboard should be pretty straightforward to commercialize and is mostly made of inexpensive, plastic-like parts. The team hopes to make it to market in the near future. 28. Why d

36、o the researchers develop the smart keyboard? A. To reduce pressure on keys. B. To improve accuracy in typing C. To replace the password system. D. To cut the cost of e-space protection. 29. What makes the invention of the smart keyboard possible？ A. Computers are much easier to operate. B. Fin

37、gerprint scanning techniques develop fast. C. Typing patterns vary from person to person. D. Data security measures are guaranteed. 30. What do the researchers expect of the smart keyboard？all 1o soisgitieoco oll. A. It'll be environment-friendly. B. It'll reach consumers soon. C. It'll be made

38、 of plastics. D. It'll help speed up typing. 31. Where is this text most likely from? A. A diary. B. A guidebook C. A novel. D. A magazine. 【語(yǔ)篇解讀】這是一篇說(shuō)明文。數(shù)據(jù)和身份盜竊變得越來(lái)越普遍，目前，向指紋掃描等這些技術(shù)仍然是昂貴的。本文介紹了一種新的科技——智能鍵盤(pán)，它能給e-space用戶(hù)帶來(lái)安全，而且這項(xiàng)技術(shù)也不貴。 28.D 【解析】細(xì)節(jié)理解題。根據(jù)第一段的At present, these technologies are sti

39、ll expensive, though.和第二段的Researchers from Georgia Tech say that they have come up with a low-cost device that gets around this problem: a smart key board.可知，研究者們開(kāi)發(fā)智能鍵盤(pán)是為了降低e-space保護(hù)的成本。故選D。 29.C 【解析】細(xì)節(jié)理解題。根據(jù)第二段的The key board could offer a strong layer of security by analyzing things like the for

40、ce of a user’s typing and the time between key presses. These patterns are unique to each person. Thus，the keyboard can determine people’s identities可知，因?yàn)槊總€(gè)人的打字方式不同，使智能鍵盤(pán)能夠識(shí)別人的身份。故選C。 30.B 【解析】細(xì)節(jié)理解題。根據(jù)最后一段的The team hopes to make it to market in the near future.可知，研究者們希望智能鍵盤(pán)能早日面世。故選B。 31.D 【解析】

41、推理判斷題。本文介紹了一種新的科技——智能鍵盤(pán)，它能給e-space用戶(hù)帶來(lái)安全，由此可知，本文是關(guān)于科技，結(jié)合所給選項(xiàng)可知，本文可能來(lái)自于一本雜志。故選D。 2. 【2019·全國(guó)卷I，D】 During the rosy years of elementary school(小學(xué)), I enjoyed sharing my dolls and jokes, which allowed me to keep my high social status. I was the queen of the playground. Then came my tweens and teens, a

42、nd mean girls and cool kids. They rose in the ranks not by being friendly but by smoking cigarettes, breaking rules and playing jokes on others, among whom I soon found myself. Popularity is a well-explored subject in social psychology. Mitch Prinstein, a professor of clinical psychology sorts the

43、popular into two categories: the likable and the status seekers. The likables’ plays-well-with-others qualities strengthen schoolyard friendships, jump-start interpersonal skills and, when tapped early, are employed ever after in life and work. Then there’s the kind of popularity that appears in ado

44、lescence: status born of power and even dishonorable behavior. Enviable as the cool kids may have seemed, Dr. Prinstein’s studies show unpleasant consequences. Those who were highest in status in high school, as well as those least liked in elementary school, are “most likely to engage(從事)in danger

45、ous and risky behavior.” In one study, Dr. Prinstein examined the two types of popularity in 235 adolescents, scoring the least liked, the most liked and the highest in status based on student surveys(調(diào)查研究). “We found that the least well-liked teens had become more aggressive over time toward their

46、 classmates. But so had those who were high in status. It clearly showed that while likability can lead to healthy adjustment, high status has just the opposite effect on us." Dr. Prinstein has also found that the qualities that made the neighbors want you on a play date-sharing, kindness, openness

47、 — carry over to later years and make you better able to relate and connect with others. In analyzing his and other research，Dr. Prinstein came to another conclusion: Not only is likability related to positive life outcomes, but it is also responsible for those outcomes, too. "Being liked creates o

48、pportunities for learning and for new kinds of life experiences that help somebody gain an advantage, ” he said. 32. What sort of girl was the author in her early years of elementary school? A. Unkind. B. Lonely. C. Generous. D. Cool. 33. What is the second paragraph mainly about？ A. The classif

49、ication of the popular. B. The characteristics of adolescents. C. The importance of interpersonal skills. D. The causes of dishonorable behavior 34. What did Dr. Prinstein’s study find about the most liked kids? A. They appeared to be aggressive. B. They tended to be more adaptable. C. They e

50、njoyed the highest status. D. They performed well academically. 35. What is the best title for the text? A. Be Nice-You Won’t Finish Last B. The Higher the Status, the Beer C. Be the Best-You Can Make It D. More Self-Control, Less Aggressiveness 【語(yǔ)篇解讀】這是一篇說(shuō)明文。文章主要講到研究表明，對(duì)別人好，討人喜歡對(duì)人生活的各個(gè)方面有深遠(yuǎn)的

51、有益影響。 32.C 【解析】推理判斷題。根據(jù)第一段During the rosy years of elementary school, I enjoyed sharing my dolls and jokes, which allowed me to keep my high social status（在美好的小學(xué)時(shí)光里，我喜歡分享我的娃娃和笑話(huà)，這讓我保持了高高的社會(huì)地位。）由此推斷出，作者在小學(xué)早期時(shí)，是一個(gè)慷慨的女孩。unkind不友善的；lonely寂寞的；generous慷慨的；cool冷靜的，故選C。 33.A 【解析】主旨大意題。第二段Mitch Prinst

52、ein, a professor of clinical psychology sorts the popular into two categories: the likable and the status seekers.（臨床心理學(xué)教授Mitch Prinstein將受歡迎的人分為兩類(lèi):討人喜歡的人和追求地位的人。）是段落主題句，本段內(nèi)容分別對(duì)the likable 和the status seekers 做了解釋?zhuān)员径沃饕榻B了兩種受歡迎的分類(lèi)，故選A。 34.B 【解析】推理判斷題。根據(jù)第四段It clearly showed that while likability

53、can lead to healthy adjustment （它清楚地表明，可愛(ài)可以促使健全的調(diào)整），由此推斷出，心理學(xué)教授Mitch Prinstein的研究表明，最有人望的孩子適應(yīng)性更強(qiáng)，故選B。 35.A 【解析】主旨大意題。通過(guò)閱讀全文內(nèi)容，尤其是最后一段，可知這篇文章主要講了受歡迎，討人喜歡對(duì)人生活的各個(gè)方面有深遠(yuǎn)的有益影響。與選項(xiàng)A“對(duì)別人好——最終，你的收獲無(wú)窮無(wú)盡”一致，故選A。 4. 【2019·全國(guó)卷II，D】 Bacteria are an annoying problem for astronauts. The microorganisms(微生物) fro

54、m our bodies grow uncontrollably on surfaces of the International Space Station, so astronauts spend hours cleaning them up each week. How is NASA overcoming this very tiny big problem? It’s turning to a bunch of high school kids. But not just any kids. It depending on NASA HUNCH high school class,

55、like the one science teachers Gene Gordon and Donna Himmelberg lead at Fairport High School in Fairport, New York. HUNCH is designed to connect high school classrooms with NASA engineers. For the past two years, Gordon’s students have been studying ways to kill bacteria in zero gravity, and they th

56、ink they’re close to a solution(解決方案). “We don’t give the students any breaks. They have to do it just like NASA engineers,” says Florence Gold, a project manager. “There are no tests,” Gordon says. “There is no graded homework. There almost are no grades, other than‘Are you working towards your go

57、al?’ Basically, it’s ‘I’ve got to produce this product and then, at the end of year, present it to NASA.’ Engineers come and really do an in-person review, and…it’s not a very nice thing at time. It’s a hard business review of your product.” Gordon says the HUNCH program has an impact(影響) on colleg

58、e admissions and practical life skills. “These kids are so absorbed in their studies that I just sit back. I don’t teach.” And that annoying bacteria? Gordon says his students are emailing daily with NASA engineers about the problem, readying a workable solution to test in space. 32. What do we kno

59、w about the bacteria in the International Space Station? A. They are hard to get rid of. B. They lead to air pollution. C. They appear different forms. D. They damage the instruments. 33. What is the purpose of the HUNCH program? A. To strengthen teacher-student relationships. B. To sharpen stud

60、ents’ communication skills. C. To allow students to experience zero gravity. D. To link space technology with school education 34. What do the NASA engineers do for the students in the program? A. Check their product. B. Guide project designs C. Adjust work schedules. D. Grade their homework. 3

61、5. What is the best title for the text? A. NASA: The Home of Astronauts. B. Space: The Final Homework Frontier. C. Nature: An Outdoor Classroom. D. HUNCH:A College Admission Reform. 【語(yǔ)篇解讀】本文為說(shuō)明文。本文介紹了HUNCH項(xiàng)目就是通過(guò)Gordon的學(xué)生找到如何殺死空間站的細(xì)菌這一技術(shù)，把空間技術(shù)與帶進(jìn)課堂，與學(xué)校教育相結(jié)合，從而最終影響到大學(xué)入 的數(shù)學(xué)模型，科學(xué)家們發(fā)現(xiàn)了一些在食物網(wǎng)運(yùn)營(yíng)的關(guān)鍵原則。

62、科學(xué)家們說(shuō);因?yàn)橐粋€(gè)生態(tài)系統(tǒng)越過(guò)了它的臨界點(diǎn)，它們很難再回來(lái)。該系統(tǒng)將告訴我們何時(shí)適應(yīng)人類(lèi)活動(dòng)，這些活動(dòng)正將生態(tài)系統(tǒng)推向崩潰，或者甚至允許我們將生態(tài)系統(tǒng)從邊緣拉回來(lái)，預(yù)防是關(guān)鍵。 46.B 【解析】細(xì)節(jié)理解題。根據(jù)第一段的With such models, scientists have found out some key principles operating in food webs.可知，借助食物網(wǎng)的數(shù)學(xué)模型，科中的一些關(guān)鍵原則。故選B。 47. C 【解析】細(xì)節(jié)理解題。根據(jù)第一段的When a predator(掠食動(dòng)物) always eats huge number

63、s of a single prey(獵物)，the two species are strongly linked可知，當(dāng)捕食者總是吃大量的單一獵物，這兩個(gè)物種是緊密相連的。故選C。 48. D 【解析】推理判斷題。根據(jù)第二段的In the 1960s, scientists proposed that predators at the top of a food web had, a surprising amount of control over the size of populations of other species they did not directly att

64、ack可知，處于食物網(wǎng)頂端的食肉動(dòng)物對(duì)它們沒(méi)有直接攻擊的其他物種的種群數(shù)量有著驚人的控制，由此可推斷出，如果食物鏈頂級(jí)食肉動(dòng)物的數(shù)量大大下降，其他物種的種群將經(jīng)歷意想不到的變化。故選D。 49.A 【解析】推理判斷題。根據(jù)第四段的Ideally the system would tell us when to adapt human activities that are pushing an ecosystem toward a breakdown or would even allow us to pull an ecosystem back from the borderline可

65、知，人類(lèi)過(guò)度的活動(dòng)會(huì)將生態(tài)系統(tǒng)推向崩潰，由此可推斷出，不受控制的人類(lèi)活動(dòng)極大地破壞了生態(tài)系統(tǒng)。故選A。 50. D 【解析】細(xì)節(jié)理解題。根據(jù)最后一段的Scientists have built an early-warning system based on mathematical models. Ideally the system would tell us when to adapt human activities that are pushing an ecosystem toward a breakdown or would even allow us to pull an

66、 ecosystem back from the borderline.可知，早期變暖系統(tǒng)發(fā)出緊急需要采取預(yù)防行動(dòng)的信號(hào)幫助我們維持生態(tài)平衡。故選D。 9. 【2019·江蘇卷，B】 In the 1960s，while studying the volcanic history of Yellowstone National Park，Bob Christiansen became puzzled about something that，oddly，had not troubled anyone before:he couldn't find the park's volcano. It had been known for a long time that Yellowstone was volcanic in nature — that's what accounted for all its hot springs and other steamy features. But Christiansen couldn't find the Yellowstone volca