雅思閱讀(學(xué)術(shù)類)模擬題（續(xù)）

各位考鴨，做了前面的雅思閱讀（學(xué)術(shù)類）模擬題，看了留學(xué)監(jiān)理網(wǎng)老師為大家做的解析，是不是覺得閱讀題目不是那么的難了呀。今天，留學(xué)監(jiān)理網(wǎng)老師繼續(xù)為大家準(zhǔn)備了雅思閱讀(學(xué)術(shù)類)模擬題READING PASSAGE 3的題目及答案，快來做題練一練吧！

圖片來自網(wǎng)絡(luò)，不用作商業(yè)目的。  如有侵權(quán)，請(qǐng)聯(lián)系我們刪除。

READING PASSAGE 3

You should spend about 20 minutes on Questions 27–40, which are based on Reading Passage 3 below.

HELIUM’S FUTURE UP IN THE AIR

A   In recent years we have all been exposed to dire media reports concerning the impending demise of global coal and oil reserves, but the depletion of another key non-renewable resource continues without receiving much press at all. Helium – an inert, odourless, monatomic element known to lay people as the substance that makes balloons float and voices squeak when inhaled – could be gone from this planet within a generation.

>>>免費(fèi)在線測(cè)試雅思閱讀成績(jī)

B   Helium itself is not rare; there is actually a plentiful supply of it in the cosmos. In fact, 24 per cent of our galaxy’s elemental mass consists of helium, which makes it the second most abundant element in our universe. Because of its lightness, however, most helium vanished from our own planet many years ago. Consequently, only a miniscule proportion – 0.00052%, to be exact – remains in earth’s atmosphere. Helium is the by-product of millennia of radioactive decay from the elements thorium and uranium. The helium is mostly trapped in subterranean natural gas bunkers and commercially extracted through a method known as fractional distillation.

C   The loss of helium on Earth would affect society greatly. Defying the perception of it as a novelty substance for parties and gimmicks, the element actually has many vital applications in society. Probably the most well known commercial usage is in airships and blimps (non-flammable helium replaced hydrogen as the lifting gas du jour after the Hindenburg catastrophe in 1932, during which an airship burst into flames and crashed to the ground killing some passengers and crew). But helium is also instrumental in deep-sea diving, where it is blended with nitrogen to mitigate the dangers of inhaling ordinary air under high pressure; as a cleaning agent for rocket engines; and, in its most prevalent use, as a coolant for superconducting magnets in hospital MRI (magnetic resonance imaging) scanners.

D   The possibility of losing helium forever poses the threat of a real crisis because its unique qualities are extraordinarily difficult, if not impossible to duplicate (certainly, no biosynthetic ersatz product is close to approaching the point of feasibility for helium, even as similar developments continue apace for oil and coal). Helium is even cheerfully derided as a “l(fā)oner” element since it does not adhere to other molecules like its cousin, hydrogen. According to Dr. Lee Sobotka, helium is the “most noble of gases, meaning it’s very stable and non-reactive for the most part … it has a closed electronic configuration, a very tightly bound atom. It is this coveting of its own electrons that prevents combination with other elements’. Another important attribute is helium’s unique boiling point, which is lower than that for any other element. The worsening global shortage could render millions of dollars of high-value, life-saving equipment totally useless. The dwindling supplies have already resulted in the postponement of research and development projects in physics laboratories and manufacturing plants around the world. There is an enormous supply and demand imbalance partly brought about by the expansion of high-tech manufacturing in Asia.

E   The source of the problem is the Helium Privatisation Act (HPA), an American law passed in 1996 that requires the U.S. National Helium Reserve to liquidate its helium assets by 2015 regardless of the market price. Although intended to settle the original cost of the reserve by a U.S. Congress ignorant of its ramifications, the result of this fire sale is that global helium prices are so artificially deflated that few can be bothered recycling the substance or using it judiciously. Deflated values also mean that natural gas extractors see no reason to capture helium. Much is lost in the process of extraction. As Sobotka notes: "[t]he government had the good vision to store helium, and the question now is: Will the corporations have the vision to capture it when extracting natural gas, and consumers the wisdom to recycle? This takes long-term vision because present market forces are not sufficient to compel prudent practice”. For Nobel-prize laureate Robert Richardson, the U.S. government must be prevailed upon to repeal its privatisation policy as the country supplies over 80 per cent of global helium, mostly from the National Helium Reserve. For Richardson, a twenty- to fifty-fold increase in prices would provide incentives to recycle.

F   A number of steps need to be taken in order to avert a costly predicament in the coming decades. Firstly, all existing supplies of helium ought to be conserved and released only by permit, with medical uses receiving precedence over other commercial or recreational demands. Secondly, conservation should be obligatory and enforced by a regulatory agency. At the moment some users, such as hospitals, tend to recycle diligently while others, such as NASA, squander massive amounts of helium. Lastly, research into alternatives to helium must begin in earnest.

Questions 27–31

Reading Passage 3 has six paragraphs, A–F.

Which paragraph contains the following information?

Write the correct letter, A–F, in boxes 27–31 on your answer sheet.

27 a use for helium which makes an activity safer

28 the possibility of creating an alternative to helium

29 a term which describes the process of how helium is taken out of the ground

30 a reason why users of helium do not make efforts to conserve it

31 a contrast between helium’s chemical properties and how non-scientists think about it

Questions 32–35

Do the following statements agree with the claims of the writer in Reading Passage 3?

In boxes 32–35 on your answer sheet, write

YES if the statement agrees with the claims of the writer

NO if the statement contradicts the claims of the writer

NOT GIVEN if it is impossible to say what the writer thinks about this

32 Helium chooses to be on its own.

33 Helium is a very cold substance.

34 High-tech industries in Asia use more helium than laboratories and manufacturers

in other parts of the world.

35 The US Congress understood the possible consequences of the HPA.

Questions 36–40

Complete the summary below.

Choose NO MORE THAN TWO WORDS from the passage for each answer.

Write your answers in boxes 36–40 on your answer sheet.

Sobotka argues that big business and users of helium need to help look after helium

stocks because 36 ……………….. will not be encouraged through buying and selling

alone. Richardson believes that the 37 ……………….. needs to be withdrawn, as the

U.S. provides most of the world’s helium. He argues that higher costs would mean

people have

38 ……………….. to use the resource many times over.

People should need a 39 ……………….. to access helium that we still have.

Furthermore, a 40 ……………….. should ensure that helium is used carefully.

>>>免費(fèi)在線咨詢雅思考試相關(guān)問題

Answers:

27. C

28. D

29. B

30. E

31. A

32. Yes

33. Not given

34. Not given

35. No

36. prudent practice

37. privatisation policy

38. incentives

39. permit

40. regulatory agency

(請(qǐng)持續(xù)關(guān)注留學(xué)監(jiān)理網(wǎng)動(dòng)態(tài)或關(guān)注微信公眾號(hào)“考鴨資料庫”閱讀相關(guān)文章)

>>>一鍵輸入GPA(2.0-4.0)，雅思成績(jī)，快速準(zhǔn)確留學(xué)定位

留學(xué)規(guī)劃和留學(xué)申請(qǐng)是一項(xiàng)復(fù)雜的長(zhǎng)期工程，不能片面聽取網(wǎng)友的交流，更不能輕信留學(xué)中介的說辭。留學(xué)監(jiān)理網(wǎng)由有20多年國際教育行業(yè)管理和服務(wù)經(jīng)驗(yàn)的前教育部官員胡本未老師創(chuàng)立，得到新華社和央視網(wǎng)的高度評(píng)價(jià)。留學(xué)監(jiān)理網(wǎng)免費(fèi)為學(xué)生提供留學(xué)咨詢規(guī)劃建議、推薦靠譜的留學(xué)機(jī)構(gòu)、審核留學(xué)方案和中介服務(wù)協(xié)議，受學(xué)生委托提供監(jiān)理服務(wù)、督辦留學(xué)中介的服務(wù)過程并“先行賠付”。

任何關(guān)于雅思考試問題，比如雅思閱讀考試有哪些注意事項(xiàng)，雅思閱讀評(píng)分標(biāo)準(zhǔn)、雅思考試注意事項(xiàng)、國外大學(xué)對(duì)雅思成績(jī)要求是多少等問題，大家都可以在線咨詢或持續(xù)訪問該欄目的其它相關(guān)文章。

相關(guān)閱讀：

留學(xué)監(jiān)理網(wǎng)獨(dú)家發(fā)布!雅思閱讀(學(xué)術(shù)類)模擬題精講!(一)

留學(xué)監(jiān)理網(wǎng)獨(dú)家發(fā)布!雅思閱讀(學(xué)術(shù)類)模擬題精講!(二)

留學(xué)監(jiān)理網(wǎng)獨(dú)家發(fā)布!雅思閱讀(學(xué)術(shù)類)模擬題精講!(三)

留學(xué)監(jiān)理網(wǎng)獨(dú)家發(fā)布!雅思閱讀(學(xué)術(shù)類)模擬題精講!(四)

• 上一篇：留學(xué)監(jiān)理網(wǎng)獨(dú)家發(fā)布!雅思閱讀(學(xué)術(shù)類)模擬題精講!（四）
• 下一篇：雅思閱讀之劍橋雅思長(zhǎng)難句分析

• 相關(guān)文章

  • 留學(xué)申請(qǐng) 要不要找留學(xué)中介
  • 出國留學(xué)費(fèi)用一般要多少
  • 選擇留學(xué)中介的十大誤區(qū)
  • 如何選擇英國留學(xué)中介
  • 最新！2020中國教育部承認(rèn)的英國大學(xué)名單完整版！
  • 干貨：曼徹斯特大學(xué)排名/申請(qǐng)條件/錄取白名單/就業(yè)前景...

• 最新問答

  查看更多>>
  • 香港留學(xué)一年的費(fèi)用需要多少錢
  • 應(yīng)屆高三學(xué)生申請(qǐng)出國留學(xué)讀本科的途徑有哪些？如何選擇？
  • 今年高考的文科生，二本線，讀什么專業(yè)好？
  • 高考成績(jī)剛過一本線，高考志愿填報(bào)和出國留學(xué)如何選擇？
  • 什么是CUG完全大學(xué)指南？
  • 什么是CWUR世界大學(xué)排名？