雅思考試閱讀部分練習(xí)試題解析

本文小編針對(duì)雅思考試閱讀部分練習(xí)試題相關(guān)信息，給廣大考生做了詳細(xì)的說(shuō)明。為了能夠讓大家更全面的掌握這方面信息，小編在下文中針對(duì)雅思考試閱讀部分練習(xí)試題做了簡(jiǎn)要的說(shuō)明。關(guān)于這類信息，小編詳細(xì)總結(jié)如下：

1. The failure of a high-profile cholesterol drug has thrown a spotlight on the complicated machinery that regulates cholesterol levels. But many researchers remain confident that drugs to boost levels of ’good’ cholesterol are still one of the most promising means to combat spiralling heart disease.

2. Drug company Pfizer announced on 2 December that it was cancelling all clinical trials of torcetrapib， a drug designed to raise heart-protective high-density lipoproteins (HDLs)。 In a trial of 15000 patients， a safety board found that more people died or suffered cardiovascular problems after taking the drug plus a cholesterol-lowering statin than those in a control group who took the statin alone.

3. The news came as a kick in the teeth to many cardiologists because earlier tests in animals and people suggested it would lower rates of cardiovascular disease. “There have been no red flags to my knowledge，” says John Chapman， a specialist in lipoproteins and atherosclerosis at the National Institute for Health and Medical Research (INSERM) in Paris who has also studied torcetrapib. “This cancellation came as a complete shock.”

4. Torcetrapib is one of the most advanced of a new breed of drugs designed to raise levels of HDLs， which ferry cholesterol out of artery-clogging plaques to the liver for removal from the body. Specifically， torcetrapib blocks a protein called cholesterol ester transfer protein (CETP)， which normally transfers the cholesterol from high-density lipoproteins to low density， plaque-promoting ones. Statins， in contrast， mainly work by lowering the ’bad’ low-density lipoproteins.

Under pressure

5. Researchers are now trying to work out why and how the drug backfired， something that will not become clear until the clinical details are released by Pfizer. One hint lies in evidence from earlier trials that it slightly raises blood pressure in some patients. It was thought that this mild problem would be offset by the heart benefits of the drug. But it is possible that it actually proved fatal in some patients who already suffered high blood pressure. If blood pressure is the explanation， it would actually be good news for drug developers because it suggests that the problems are specific to this compound. Other prototype drugs that are being developed to block CETP work in a slightly different way and might not suffer the same downfall.

6. But it is also possible that the whole idea of blocking CETP is flawed， says Moti Kashyap， who directs atherosclerosis research at the VA Medical Center in Long Beach， California. When HDLs excrete cholesterol in the liver， they actually rely on LDLs for part of this process. So inhibiting CETP， which prevents the transfer of cholesterol from HDL to LDL， might actually cause an abnormal and irreversible accumulation of cholesterol in the body. “You’re blocking a physiologic mechanism to eliminate cholesterol and effectively constipating the pathway，” says Kashyap.

Going up

7. Most researchers remain confident that elevating high density lipoproteins levels by one means or another is one of the best routes for helping heart disease patients. But HDLs are complex and not entirely understood. One approved drug， called niacin， is known to both raise HDL and reduce cardiovascular risk but also causes an unpleasant sensation of heat and tingling. Researchers are exploring whether they can bypass this side effect and whether niacin can lower disease risk more than statins alone. Scientists are also working on several other means to bump up high-density lipoproteins by， for example， introducing synthetic HDLs. “The only thing we know is dead in the water is torcetrapib， not the whole idea of raising HDL，” says Michael Miller， director of preventive cardiology at the University of Maryland Medical Center， Baltimore.

(613 words nature)

Questions 1-7

This passage has 7 paragraphs 1-7.

Choose the correct heading for each paragraph from the list of headings below.

Write the correct number i-ix in boxes 1-7 on your answer sheet.

List of Headings

i. How does torcetrapib work­

ii. Contradictory result prior to the current trial

iii. One failure may possibly bring about future success

iv. The failure doesn’t lead to total loss of confidence

v. It is the right route to follow

vi. Why it’s stopped

vii. They may combine and theoretically produce ideal result

viii. What’s wrong with the drug

ix. It might be wrong at the first place

Example answer

Paragraph 1 iv

1. Paragraph 2

2. Paragraph 3

3. Paragraph 4

4. Paragraph 5

5. Paragraph 6

6. Paragraph 7

Questions 7-13

Match torcetrapib，HDLs，statin and CETP with their functions (Questions 8-13)……

Write the correct letter A， B， C or D in boxes 8-13 on your answer sheet.

NB You may use any letter more than once.

7.It has been administered to over 10，000 subjects in a clinical trial.

8.It could help rid human body of cholesterol.

9.Researchers are yet to find more about it.

10. It was used to reduce the level of cholesterol.

11. According to Kashyap， it might lead to unwanted result if it’s blocked.

12. It produced contradictory results in different trials.

13. It could inhibit LDLs.

List of choices

A. Torcetrapic

B. HDLS

C. Statin

D. CETP

Suggested Answers and Explanations

1. vi

2. ii

3. vii 本段介紹了torcetrapib和statin的治病原理，但是同時(shí)短語(yǔ)“in contrast”與之前第二段后半段的內(nèi)容呼應(yīng)，暗示了這兩種藥在理論上能相輔相成，是理想的搭配。第一個(gè)選項(xiàng)無(wú)法涵蓋整段意義，故選擇i是錯(cuò)誤的。

4. iii 本段分析了可能導(dǎo)致torcetrapibl臨床試驗(yàn)失敗的原因，后半段指出如果以上推測(cè)正確，那么未來(lái)的藥物可借鑒這個(gè)試驗(yàn)，設(shè)法避免torcetrapib的缺陷，研制出有效的藥物。viii選項(xiàng)無(wú)法涵蓋后半段的意思。

5. ix 見(jiàn)首句。

6. v

7. A 見(jiàn)第二段。題目中administer一詞意為“用藥”，subject一詞為“實(shí)驗(yàn)對(duì)象”之意。

8. B 見(jiàn)第四段“… to raise levels of HDLs， which ferry cholesterol out of artery- clogging plaques to the liver for removal from the body.”即HDLs的作用最終是將 choleserol清除出人體：“… for removal from the body”。

9. B 見(jiàn)第四段“But HDLs are complex and not entirely understood.”

10. C 見(jiàn)第二段“… plus a cholesterol-lowering statin”，即statin是可以降低cholesterol的。

11. D 見(jiàn)第六段 “So inhibiting CETP， … might actually cause an abnormal and irreversible accumulation of cholesterol in the body.

12. A 見(jiàn)第三段。

13. C 見(jiàn)第四段“Statins， in contrast， mainly work by lowering the ’bad’ low-density lipoproteins

雅思考試閱讀部分練習(xí)試題的詳細(xì)內(nèi)容，小編給各位正在備考此類考試的考生們提供了全面的解析，大家通過(guò)對(duì)文章內(nèi)容的了解，相信會(huì)從中找到一些備考的方向和要點(diǎn)。希望大家能夠盡快進(jìn)入到備考最佳狀態(tài)中。

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【專業(yè)資歷】
新通教育南京分公司資深課程顧問(wèn)， 教育行業(yè)多年以上從業(yè)經(jīng)驗(yàn)，對(duì)雅思托�？荚囉泻苌钊氲牧私猓�在和學(xué)生的交談中可以準(zhǔn)確的發(fā)現(xiàn)學(xué)生現(xiàn)階段雅思托福的問(wèn)題所在，并可以有針對(duì)性的提出比較適合的課程方案，在規(guī)定的時(shí)間達(dá)到所需要的雅思托福分?jǐn)?shù)，其中有較多高分學(xué)子，得到很多家長(zhǎng)和學(xué)生的好評(píng)。
【成功案例】
范嬌，這位學(xué)生在2013年初的時(shí)候參加的雅思考試，取得了聽(tīng)力7.0分 閱讀7.5分 寫(xiě)作7.0分 口語(yǔ)6.5分，總分7.0的好成績(jī)。之所以能取得這個(gè)比較好的成績(jī)，學(xué)生努力的成分是不可以忽略的，但也有很大一部分得益于南京新通教育的語(yǔ)言老師。給她系統(tǒng)的安排有針對(duì)性的課程，提高學(xué)生的薄弱項(xiàng)目，保證學(xué)生較強(qiáng)的科目并且在原有的基礎(chǔ)上獲得突破。尤其是聽(tīng)力和寫(xiě)作方面。范嬌在之前的2012年中的時(shí)候參加過(guò)一次雅思考試得到聽(tīng)力6.0分，閱讀6.5分，寫(xiě)作6.0分，口語(yǔ)6分，總分6分的成績(jī)，短短的半年時(shí)間，學(xué)生提高了1分，平時(shí)范嬌同學(xué)和老師互動(dòng)較好，沒(méi)有課的時(shí)間基本都在自習(xí)室進(jìn)行自習(xí)，不懂的問(wèn)題及時(shí)和老師溝通，掌握了比較好的學(xué)習(xí)和做題方法。