2022年大理農(nóng)林職業(yè)技術(shù)學(xué)院自考英語(yǔ)（二）練習(xí)題匯總（附答案解析）

1、 2022年大理農(nóng)林職業(yè)技術(shù)學(xué)院自考英語(yǔ)（二）練習(xí)題匯總（附答案解析）第1題【單選題】【2009.04】She _ everything else and concentrated on the task before her. A、set off B、set back C、set aside D、set up【正確答案】C【答案解析】譯文：她把其他事情都放到一邊，集中精力于她面前的任務(wù)。試題分析：本題考查短語(yǔ)意義辨析。詳細(xì)解答：A 出發(fā)、動(dòng)身；B 把（某物）置于之后、延遲；C 撇開、取消、廢除；D 建立、提出。第2題【單選題】【2009.7】The judge who was _ to hi

2、s favorite was criticized by many people. A、partial B、fair C、strict D、frank【正確答案】A【答案解析】本題句意為：許多人批評(píng)了偏袒他自己喜愛（球隊(duì)或球員）的那個(gè)裁判員?？疾樾稳菰~的意義區(qū)分。A 偏袒的，不公平的；B 公正的；C 嚴(yán)格的，嚴(yán)厲的； D 坦率的。第3題【單選題】In the original test，all the animals in a test group are given a substance _ half of them die A、unless B、until C、lest D、provid

3、ed【正確答案】B【答案解析】本題考查詞義辨析。until：直到。符合句意，表示given a substance 持續(xù)到half of them die。第4題【單選題】【2008.04】Anxiety can _ with childrens performance at school. A、refer B、prefer C、infer D、interfere【正確答案】D【答案解析】本題考查詞語(yǔ)辨析。句子翻譯為：焦慮可以妨礙孩子們?cè)趯W(xué)校的表現(xiàn)。 A . refer to 提到、查閱、涉及；B. prefer to更喜歡； C. infer from（根據(jù)某事）推斷、推定； D. inte

4、rfere with 擾亂、妨礙。第5題【單選題】【閱讀選擇】We are so used to our life on the surface of the earth that it can be quite an effort for our mind to break free of all the ideas that we take for granted. Because we can feel that things are heavy, we think of weight as being a fixed quality in an object, but it is no

5、t really fixed at all. If you could take a one-pound packet of butter 4, 000 miles out from the earth, it would weigh only a quarter of a pound.How much would four pounds of tea weigh if it was taken 4,000 miles out from the surface of the earth? A、1 pound. B、2 pounds. C、3 pounds. D、4 pounds.【正確答案】A

6、【答案解析】本題問的是一磅茶如果被帶出離地球表面4000英里的地方，重量會(huì)是多少？4000這個(gè)數(shù)字比較關(guān)鍵，因?yàn)樵诒径巫詈笠痪渲谐霈F(xiàn)了這個(gè)詞，一看該句If you could take a one-pound packet of butter 4, 000 miles out from the earth, it would weigh only a quarter of a pound.只是把名詞換了一下，很顯然答案就是變成原來(lái)重量的四分之一，因此正確答案是A。第6題【單選題】【完成句子】Lightning is generated when electrical charges separ

7、ate in rain clouds, though processes are still not fully understood. Typically, positive charges（正電荷） build at the cloud top, while the bottom becomes negatively charged（負(fù)電荷的）. In most instances of cloud-to-ground lightning, the negatively charged lower portion of the cloud repels negatively charged

8、 particles on the grounds surfaces, making it become positively charged. The positive charge on the ground gathers at elevated points.In most cases of cloud-to-ground lightning, the grounds surface_. A、is positively charged B、is shifted sideways by strong winds C、is negative charged D、is changed fro

9、m positively charge to negative charge【正確答案】A【答案解析】本段文字解釋了云層與地面之間的閃電的成因，云層下部帶負(fù)電荷，排斥地面表層的負(fù)電荷，所以地面表層聚集的是正電荷。答案為A。第7題【單選題】【2009.01】He has deep love for the people and_loyalty to the country. A、intense B、initial C、instant D、imitative【正確答案】A【答案解析】本題考查形容詞詞義區(qū)分。A 強(qiáng)烈的，極度的；B 最初的，開始的；C 立即的，即時(shí)的；D 模仿的，仿效的。形容loya

10、lty，選A比較恰當(dāng)。第8題【單選題】【閱讀判斷】Hercules served a king. The king was afraid of him. So again and again he sent him on difficult tasks. One morning the king sent for him and told him to fetch three golden apples for him from the garden of the Singing Maidens (歌女). But no one knew where the garden was.Q: Her

11、cules was given many difficult tasks because the king wanted to get rid of him. A、True B、False C、Not Given【正確答案】A【答案解析】答案選A。句子的意思是：國(guó)王想除掉Hercules，所以交給他很多艱巨的工作去做。這個(gè)信息在短文第二句和第三句中提到了，與短文的意思相符(國(guó)王很害怕Hercules，多次交給他艱巨的工作去做)，由此可以推斷本題的正確選項(xiàng)為A。第9題【單選題】Groups like Anti-Slavery International say other, less drama

12、tic, cases are equally _ of attention. A、deserving B、aware C、capable D、typical【正確答案】A【答案解析】deserving of：應(yīng)受到，值得 第10題【單選題】【閱讀判斷】A moderate earthquake struck parts of southeast England on 28 April 2007, toppling chimneys from houses and rousing residents from their beds.Q: During the April 28 earthquak

13、e, the whole England was left without power. A、True B、False C、Not Given【正確答案】B【答案解析】答案選B。題中說2007年4月28日的地震致使全英格蘭都停電，與文中表達(dá)的內(nèi)容不符。文中說地震殃及英格蘭東南部的肯特郡部分地區(qū)，電力中斷，幾千名居民無(wú)電可用。the whole England 與 parts of southeast England 是不符的，所以選B。第11題【單選題】【閱讀選擇】On the other hand, more people working for longer would create gr

14、eater competition for jobs. It would make it more difficult for younger people to find a job. Top posts would be dominated by the same few individuals, making career progress more difficult. And how easily would a 25-year-old employee be able to communicate with a 125-year-old boss?All of the follow

15、ing are possible effects living longer might have on working life EXCEPT_. A、Communication between employers and employees would be more difficult. B、More money would be used by employees in payment of their employees. C、The job market would be more competitive. D、It would be more difficult for youn

16、g people to be promoted to top positions.【正確答案】B【答案解析】是非判斷題。對(duì)照原文第九自然段On the other hand, more people working for longer would create greater competition for jobs.排除選項(xiàng)C；It would make it more difficult for younger people to find a job.排除選項(xiàng)D；And how easily would a 25-year-old employee be able to communi

17、cate with a 125-year-old boss?排除選項(xiàng)A；答案是B。第12題【單選題】【填句補(bǔ)文】The acid rain（酸雨）is said to be caused by pollution from oil wells in the Gulf of Mexico. Car exhaust gases are also a problem. Local volcanic eruptions make the problem even worse. Nevertheless, with enough money and effort, researchers say tha

18、t many of the problems could be solved and the rate of erosion reduced. _. A、The problem, however, is not just a European one. B、That is enough to have caused some of the ancient carvings to become seriously damaged already. C、However, the Mexican government does not have enough money to do the work

19、, and needs to spend what money it has on the Mexican people. D、Acid rain is how a familiar problem in the industrialized countries in Europe.【正確答案】C【答案解析】前文提到完成這項(xiàng)工作需要很多的錢，答案轉(zhuǎn)折說到了墨西哥沒有這么多的錢去做。兩句之間有隱含的邏輯關(guān)系。第13題【單選題】【2009.10】Youd better leave things _ if you dont know how to deal with them. A、off B、ou

20、t C、alone D、over【正確答案】C【答案解析】【譯文】 如果你不知道如何處理這些事情，你最好把它們放在一邊?！驹囶}分析】本題考查詞意區(qū)分?！驹敿?xì)解答】 A 離開，離去 B 不在里面，出局 C 單獨(dú)的（地） D 完結(jié)，翻倒，越過第14題【單選題】【概括大意】Wignall calculated the killing efficiency for these volcanoes by comparing the proportion of life they killed off with the volume of lava that they produced. He found

21、 that size for size, older eruptions were at least 10 times as effective at wiping out life as their more recent rivals.The main idea of this paragraph is_. A、Killing Power of Ancient Volcanic Eruptions B、Accounting for the Killing Power of Older Eruptions C、Calculation of the Killing Power of Older

22、 Eruptions D、A Mass Extinction【正確答案】C【答案解析】本段第一句話是說：Wignall calculated the killing efficiency for these volcanoes；Wignall 計(jì)算了這些火山的“滅絕效率”；其中killing efficiency與killing Power意思差不多，屬于同義詞轉(zhuǎn)換，因此選擇B或C，但是account for 意思是：（在數(shù)量方面）占；說明（原因等）不符合句意，因此不選擇B。第15題【單選題】【填句補(bǔ)文】Rough estimates in the past have predicted si

23、milarly disappointing results. _ Says Sallie Chishol, an environmental engineer from the Massachusetts Institute of Technology. But the take-home message is the same. Ocean fertilization is not the answer to global warming. A、These are newer and better models, B、Its opponents argue, however, that it

24、 will stop global warming. C、Adding iron to patches of ocean can make plankton bloom temporarily. D、As plankton die and settle on the ocean floor, their carbon is supposedly locked up in the seabed.【正確答案】A【答案解析】這個(gè)問題可以根據(jù)引號(hào)來(lái)作答，因?yàn)榭崭窈竺嬗小皊ays”這個(gè)詞，它預(yù)示著所填入的句子應(yīng)該是帶引號(hào)的。A的意思是：這些是比較新的也是比較好的模型。第16題【單選題】【閱讀選擇】Phy

25、siologically, we are rhythmical. We must eat, sleep, breathe, and play regularly to maintain good health. Emotionally we are rhythmical, too, for psychologists say that all of us feel alternate periods of relative depression and exhilaration. Intellectually we are also rhythmical, for we must have p

26、eriods of relaxation following periods of concentration. It naturally follows then that rhythm, a fundamental aspect of our lives, must be a part of any good literary workwhether poetry or prose.According to the passage, which of the following pairs of activities best illustrates intellectual rhythm

27、? A、Studying a science book and then studying a psychology book B、Learning a poem and then taking a nap C、Playing ball at the beach and then going swimming D、Solving a math problem and then solving a chemistry problem【正確答案】B【答案解析】段落的結(jié)尾處講到：在腦力活動(dòng)方面，我們也同樣是有節(jié)奏的，因?yàn)槲覀冊(cè)诟叨燃芯σ欢螘r(shí)間以后，必須讓腦子有一個(gè)松弛的階段(“we must h

28、ave periods of relaxation following periods of concentration”)。根據(jù)這個(gè)信息，A、D項(xiàng)內(nèi)容都是高度集中的腦力活動(dòng)，與原文內(nèi)容恰好相反；B項(xiàng)內(nèi)容是學(xué)習(xí)詩(shī)歌與小睡一會(huì)，正好符合原文，一張一弛。而C項(xiàng)內(nèi)容又全是不費(fèi)腦力的活動(dòng)，也不符合原文。第17題【單選題】【2009.04】Dont trust everything _ you have read in the newspapers. A、which B、that C、as D、what【正確答案】B【答案解析】本題考查定語(yǔ)從句。譯文：不要相信你在報(bào)紙上讀到的每件事。定語(yǔ)從句所修飾的先行

29、詞是不定代詞everything，故選B。第18題【單選題】【閱讀選擇】If you enjoy looking through travel books by such familiar authors as Arthur Frommer or Eugene Fodor, it will not surprise you to learn that travel writing has a long and venerable history. Almost from the earliest annals of recorded time individuals have found re

30、ady audiences for their accounts of journeys to strange and exotic locales.This passage is mostly about_. A、why people find travel writing exciting B、the literary style of three early travel writers C、where three early travel writers went and wrote about D、how to write a travel book【正確答案】C【答案解析】答案選C

31、。主旨題。聯(lián)系第一自然段和每段首句知道，本文講了三個(gè)作家，鎖定答案B和C，結(jié)合內(nèi)容，文章主要講關(guān)于他們的旅行和作品，答案是C。第19題【單選題】【閱讀選擇】Tom, a near-sighted young man, went on a blind date with a girl. The two were satisfied with each other. And they exchanged their telephone numbers. What can we learn about Tom? A、Tom made a good impression on the girl at

32、first. B、It was the first time that Tom had dated a girl. C、Tom was blind. D、Tom was handsome and popular with the girls.【正確答案】A【答案解析】答案選A。細(xì)節(jié)判斷題。從The two were satisfied with each other可知，相親過后，兩人對(duì)對(duì)方都很滿意，所以A選項(xiàng)正確，湯姆第一次見對(duì)方就留下了很好的印象。B項(xiàng)所表述內(nèi)容在文中找不到根據(jù)，不能判斷這是湯姆第幾次約會(huì)。根據(jù)文章描述，湯姆只是near-sighted，遠(yuǎn)不到盲了的地步。文章僅講述了湯姆和

33、某一個(gè)女孩相親的精力，對(duì)他的個(gè)人魅力以及是否受女孩歡迎并未提及。第20題【單選題】【閱讀判斷】The UK is portioned at No. 29, a much lower position chiefly because of the social and family breakdown recorded in official statistics. The US, which has the second highest per capita GDP（人均國(guó)內(nèi)生產(chǎn)總值）after Luxembourg, took the 13th place in the surveyChin

34、a was in the lower haft of the league at 60thQ: The United States of America is among the top 10 countries in the survey. A、True B、False C、Not Given【正確答案】B【答案解析】答案選B。問題句說“美國(guó)位于前十個(gè)國(guó)家的行列”。The US, which has the second highest per capita GDP (人均國(guó)內(nèi)生產(chǎn)總值) after Luxembourg, took the 13th place in the survey.

35、 該句說“美國(guó)的人均國(guó)內(nèi)生產(chǎn)總值排名第2，僅位于盧森堡之后，因此美國(guó)在這項(xiàng)調(diào)查中位于第13位?！憋@然問題句的說法與該句的說法不一致，因此判斷問題句“錯(cuò)誤”。第21題【單選題】【2009.10】The profit-sharing plan is designed to _ the staff to work hard. A、calculate B、demonstrate C、speculate D、motivate【正確答案】D第22題【單選題】【填句補(bǔ)文】There is a difference between science and technology. _. Science has

36、to do with discovering the facts and relationships between observable phenomena in nature and with establishing theories that serve to organize these facts and relationships; technology has to do with tools, techniques, and procedures for applying the findings of science. A、Another distinction betwe

37、en science and technology has to do with the progress in each. B、We are all familiar with the improper use of technology. C、Unlike science, progress in technology must be measured in terms of the human factor. D、Science is a method of answering theoretical questions; technology is a method of solvin

38、g practical problems.【正確答案】D【答案解析】第一句總述了科學(xué)和技術(shù)是有差別的。缺空后是對(duì)兩者的分述，因此缺空處也應(yīng)是對(duì)兩者的分述，故選D。第23題【單選題】【閱讀判斷】People living north of the mountain heard a loud boom that shook their windows, and airline pilots flying near the volcano soon afterwards described a thick black column of ash and steam shooting more tha

39、n 2,100 meters into the sky.Q: Pilots flying at the height of more than 2,100 meters saw a thick black column of ash and steam shooting up into the air from the crater. A、True B、False C、Not Given【正確答案】B【答案解析】答案選B。該題說的是: 飛行員飛行的高度超過2100米時(shí)，看見一個(gè)黑色的火山灰和蒸汽從火山口急速上升到空氣中。但是，文章中airline pilots flying near the

40、volcano soon afterwards described a thick black column of ash and steam shooting more than 2,100 meters into the sky.說的是靠近火山的地方出現(xiàn)了一個(gè)黑色的火山灰和蒸汽上升到空氣中，其高度超過2100米。因此該命題是錯(cuò)誤的。第24題【單選題】【2009.01】What he told us was more of a(n)_than a reality. A、illusion B、demonstration C、illustration D、reputation【正確答案】A【答案

41、解析】句意：他告訴我們的更可能是幻想而不是現(xiàn)實(shí)?？疾槊~詞義。A 幻想，錯(cuò)誤觀念；B 演示，證明；C 圖解，實(shí)例；D 名聲，名譽(yù)。第25題【單選題】【2009.7】The house was quiet in the night, _ the occasional coughing from my throat. A、as for B、such as C、instead of D、except for【正確答案】D【答案解析】本題考查短語(yǔ)意義區(qū)分。譯文：除了偶爾我咳嗽一下以外，這所房子在夜晚非常安靜。A 至于，關(guān)于； B 例如；C 代替，而不是；D 除了以外第26題【單選題】【2009.04】

42、When you _ know Bob better, you will like him. A、go to B、got to C、went to D、get to【正確答案】D【答案解析】譯文：當(dāng)你更加了解鮑勃時(shí)，你將會(huì)喜歡他的。試題分析：本題考查主將從現(xiàn)。詳細(xì)解答：根據(jù)主將從現(xiàn)的原則，主句用了一般將來(lái)時(shí)，時(shí)間狀語(yǔ)從句中用一般現(xiàn)在時(shí)表示將來(lái)。 第27題【單選題】When _, water will be turned into steam. A、heated B、heating C、being heat D、having heated【正確答案】A【答案解析】水被加熱時(shí)會(huì)變成蒸汽。因?yàn)橹骶渲?/p>

43、語(yǔ)water和從句謂語(yǔ)heat的關(guān)系是被動(dòng)的，所以用過去分詞。第28題【單選題】【閱讀選擇】She told me her name was Helen and she was talking to a local restaurant where they were going to have lunch after her appointment. She called to see if he was there. She said, “My husband has Alzheimers（老年癡呆）and he shouldnt be driving without me.” Numer

44、ous thoughts ran through my head. Call the police, call her family, and notify（通知）the doctors office she had just come from! But at first, I offered to drive to the local restaurant to see if Ed was waiting for her there.The elderly woman cried in the lobby when she was talking to _. A、her husband w

45、ith Alzheimers B、the nurse in the doctors office C、a local restaurant D、one of her family members【正確答案】C【答案解析】答案選C。根據(jù)文章本段中She told me her name was Helen and she was talking to a local restaurant可知答案為C項(xiàng)。Helen由于擔(dān)心自己丈夫安危，但又找不到人，情急之下先打電話到倆人約好即將要去的餐廳詢問情況。第29題【單選題】【概括大意】Our bodies are estimated to be abou

46、t 60 to 70% water. Blood is mostly water, and our muscles, lungs, and brain all contain a lot of water. Water is needed to regulate body temperature and to provide the means for nutrients （滋養(yǎng)） to travel to all our organs. Water also transports oxygen to our cells, removes waste, and protects our joi

47、nts and organs.The main idea of this paragraph is_. A、Ounces of Water Needed Per Day B、Importance of Water C、Water in Our Body D、The Function of Water【正確答案】B【答案解析】通過介紹水在我們身體里的含量、水存在身體的那些部位及水的一些功能來(lái)證明水的重要性。因此選擇B。第30題【單選題】【2009.10】There are many sales this season, during which stores will lower their _

48、 prices. A、normal B、general C、ordinary D、usual【正確答案】A【答案解析】本題考查形容詞辨析。整句話的意思為：這個(gè)季節(jié)有很多促銷活動(dòng)，在此期間商店都會(huì)降低商品的原價(jià)。A 正常的、平常的 B 普通的、一般的 C 普通的 D 尋常的、通常的第31題【單選題】【2009.10】The profit-sharing plan is designed to _ the staff to work hard. A、calculate B、demonstrate C、speculate D、motivate【正確答案】D【答案解析】本題考查詞語(yǔ)辨析?！咀g文】利潤(rùn)共

49、享計(jì)劃目的是激發(fā)員工努力工作。A 計(jì)算、估算 B 證實(shí)、論證、演示 C思索、推測(cè) D 激勵(lì)、激發(fā)第32題【單選題】【2009.7】The wounded soldiers would recover quickly if they were well _. A、nourished B、stuffed C、tamed D、ventured【正確答案】A【答案解析】本題考查過去分詞意義區(qū)分。譯文：如果受傷的戰(zhàn)士營(yíng)養(yǎng)很好，他們就會(huì)很快痊愈。A 營(yíng)養(yǎng)，滋養(yǎng)；B 填滿，塞滿； C 馴服（猛獸）；D 冒險(xiǎn)第33題【單選題】The newspaper will have to close down if i

50、t cannot increase its _ considerably. A、distribution B、contribution C、prescription D、circulation【正確答案】D【答案解析】【譯文】如若不能相當(dāng)大地增加報(bào)紙的發(fā)行量，這家報(bào)社就將不得不關(guān)閉了?！驹囶}分析】詞義選擇題。 【詳細(xì)解答】A 分配，分發(fā) B 貢獻(xiàn)，投稿C 處方，藥方 D （報(bào)刊等的）發(fā)行量、銷售量第34題【單選題】This project is deserving _ further investigation. A、with B、to C、of D、for【正確答案】C【答案解析】句意：這個(gè)

51、項(xiàng)目值得進(jìn)一步調(diào)查。deserving of：應(yīng)受到，值得。 第35題【單選題】【2007.04】Because of the bad weather, the sports meet had to be _. A、shut down B、done away C、gone off D、called off【正確答案】D【答案解析】本題考查詞義辨析。call off：取消，符合句意。shut down：關(guān)閉（工廠）；（工廠）停工，關(guān)閉。do away常與with搭配，構(gòu)成do away with。go off：爆炸，（鬧鈴）響。 第36題【單選題】【閱讀判斷】Over the weekend,

52、Hillary Rodham Clinton, wife of former president Bill Clinton, announced her run for 2008 presidency. This is partly due to the biased thinking that women are weak on national security, though they might be strong on education and health care. This damages their prospects as a presidential contender

53、.Q: One of Hillarys campaign promises is to reform the nations health care system. A、True B、False C、Not Given【正確答案】C【答案解析】答案選C。問題句說“Hillary的一個(gè)競(jìng)選承諾是改革國(guó)家的醫(yī)療制度?！倍径沃皇钦f“女人做教育和醫(yī)療方面的工作有優(yōu)勢(shì)”，沒有說Hillary的一個(gè)競(jìng)選承諾式改革國(guó)家的醫(yī)療制度，因此問題句的信息在文章中沒有被提到。第37題【單選題】【2008.04】The farming methods have been _ improved with the inv

54、ention of the new machine. A、efficiently B、proficiently C、professionally D、intentionally【正確答案】A【答案解析】本題考查副詞詞義辨析。句子翻譯為：由于新機(jī)器的發(fā)明，人們已經(jīng)高效率地改進(jìn)了農(nóng)業(yè)耕種方法。A 高效率地 B熟練地 C 職業(yè)地、專職地 D 故意地、有意地。第38題【單選題】【2008.04】The cloth had a natural look which perfectly _ the image Laura sought. A、turned out B、set down C、thought

55、over D、coincided with【正確答案】D【答案解析】本題考查短語(yǔ)意義辨析。這塊布料看起來(lái)很自然，與勞拉尋找的樣式完全相符。A. 關(guān)閉； B.制定、放下； D. 與相同、與相符。第39題【單選題】【2010.04】We have greatly _ the procedure according to the chairmans suggestion. A、stimulated B、perceived C、obscured D、simplified【正確答案】D【答案解析】【譯文】 按照主席的提議我們已經(jīng)大大地簡(jiǎn)化了步驟。【試題分析】本題考查詞義辨析。【詳細(xì)解答】 動(dòng)詞的詞義選取

56、。第40題【單選題】【填句補(bǔ)文】David Guterson and his wife teach their three children at home. Guterson says that his children learn very differently from children in school: _. For example, when there is heavy snowfall on a winter day, it may start a discussion or reading about climate, snow removal equipment, Al

57、aska, polar bears （北極熊）, and winter tourism. A spring evening when the family is out watching the stars is a good time to ask questions about satellites and the space program. A、Some parents prefer teaching their children at home because they do not believe that public schools teach the correct reli

58、gious values. B、Learning starts with the childrens interests and questions. C、Interestingly, results show that home-schooled children quite often do better than average on national tests in reading and math. D、Critics also say that most parents are not well qualified to teach their children.【正確答案】B【

59、答案解析】此空要填的是home-schoolers與其他孩子學(xué)習(xí)的不同點(diǎn)，因此選B。第41題【單選題】【2008.10】Johnson was _ unknown before running for the presidency. A、visibly B、visually C、vertically D、virtually【正確答案】D【答案解析】本題考查（形近的）副詞詞義區(qū)分。譯文：事實(shí)上，約翰遜在參選總統(tǒng)職位之前是個(gè)無(wú)名人士。A 顯然，明顯地 B 外表上，直觀地 C 垂直地，直立地 D 實(shí)際上，事實(shí)上第42題【單選題】【閱讀選擇】Many researchers，whose work de

60、pends on ocean sounds object to a limit of one-hundred-twenty decibels（分貝）. They say such a limit is a greater danger than they believed. They want to prevent noises from harming creatures in the ocean.According to the passage, what will scientists most probably do in the future? A、They will work ha