5.Researchers may have discovered a perfect material of dieting----low fat cake and cheese.
British researchers say they have created a protein (蛋白質(zhì)) that fat perfectly.
The proteins will enable food producers to remove much of the fat used in their products but without reducing product quality.
Funded by team from University of Edinburgh,the researchers have produced the modified (調(diào)整了的) proteins that easily break down and therefore work nearly the same as the fats do during food production.
"We've paved the way for the development of modified proteins that can be used to produce a wider ranger of appealing low-fat foods,"said Dr.Steve Euston,who led the research.
"The result could be important for health benefits,as well as a reduction in the burden on the National Health Service (NHS) caused by many weight-related health problems."
Protein-for-fat substitution (替代品) is not a completely new idea,but to date it has been limited to products such as yogurts.
In cheeses and cakes it has proved less successful in ensuring the original taste and texture fundamental to consumer satisfaction,mainly because proteins could not mimic the behavior of fats closely enough.
By studying the proteins'chemical structure,the team has developed a detailed understanding of how proteins behave when they are heated or go through other food producing processes.
The proteins could encourage development of a wider choice of low-fat foods,helping consumers to eat more healthily and reducing weight-related health problems.
The team has achieved particularly promising results in using proteins to replace eggs,which is commonly used in bakery items.
Such substitution not only cuts fat content; because eggs can be subject to sharp changes in price,it could also cut the cost products and so encourage consumers to eat more healthily.

47.What can we learn from the passage?A
A.The NHS will benefit from this new finding.
B.the research team is funded by food producers.
C.Protein for fat substitution is a completely new idea.
D.Products of modified proteins have been put on sale.
48.The underlined word"mimic"meansD
A.reduces 
B.makes 
C.removes 
D.imitates
49.These new proteins work nearly the same as the fats do becauseB.
A.they will cut fat content easily 
B.they will break down easily
C.their products are cheaper and healthier 
D.they ensure the original taste and texture.
50.Which of the following is best title?A
A.A Special Protein 
B.How Proteins Work
C.Cut down the Food Cost 
D.A special Research Team.

分析 本文屬于說(shuō)明文閱讀,作者通過(guò)這篇文章主要向我們介紹了一種可以用來(lái)代替脂肪的一種新型蛋白質(zhì),該蛋白質(zhì)將使食品生產(chǎn)商去除大部分在他們的產(chǎn)品中使用的脂肪,但不降低產(chǎn)品質(zhì)量,且可以降低成本使消費(fèi)者吃得更健康.

解答 47.A.推理判斷題.根據(jù)文章第六段as well as a reduction in the burden on the National Health Service (NHS) caused by many weight-related health problems,以及減少?lài)?guó)民健康服務(wù)(NHS)很多與體重相關(guān)的健康問(wèn)題所引起的負(fù)擔(dān);故選A.
48.D.詞義推斷題.根據(jù)文章第八段"mainly because proteins could not mimic the behavior of fats closely enough."可知蛋白質(zhì)不能模仿脂肪的行為作用.故選D.
49.B.細(xì)節(jié)理解題.根據(jù)第四段 the researchers have produced the modified proteins that easily break down and therefore work nearly the same as the fats do during food production,研究人員已經(jīng)研究出了改良的蛋白質(zhì),它很容易被分解,因此在食品生產(chǎn)中作用和脂肪幾乎一樣;故選B.
50.A.主旨大意題.通讀全文,本文主要介紹了一種新型蛋白質(zhì),可以用來(lái)代替脂肪.故選A

點(diǎn)評(píng) 考察學(xué)生的細(xì)節(jié)理解和推理判斷能力,做細(xì)節(jié)理解題時(shí)一定要找到文章中的原句,和題干進(jìn)行比較,再做出正確的選擇.在做推理判斷題不要以個(gè)人的主觀想象代替文章的事實(shí),要根據(jù)文章事實(shí)進(jìn)行合乎邏輯的推理判斷.

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Yesterday,hopes of achieving anything resembling clarity(清楚) from the World Health Organization (WHO) were confused once again,which,widely expected to reduce the recommended sugar intake by a half in new draft guidance,instead said it would continue to recommend that sugar make up no more than 10per cent of the energy we consume,while adding that cutting this to five per cent would have"additional benefits".The decision will now go out to public consultation.
Simon Capewell,professor of the University of Liverpool,said that he suspected"dirty work"on the part of food and drinks companies might lie behind the WHO's less than resounding message.
"The food industry say Government has no business interfering(介入) in families,we must protect personal choice,"Professor Capewell said."We say there is no personal choice.At the moment,a mother can walk into a supermarket with a choice of four tomato soups-with three,or four,or five teaspoons of sugar in them.She has a choice of thousands of ready meals-with five,or six,or even nine teaspoons of sugar in."

59.By referring to smoking the author indicates thatB.
A.sugar has just turned out to be as harmful as smoking
B.it is not easy for authorities to restrict or ban something
C.it is easy for people to see bad effects of something
D.people must see the disadvantages of sugar immediately
60.WHO has changed its idea mainly becauseC.
A.it thinks the danger of sugar to health is overemphasized
B.it finds it safe to take in as much sugar as people do now
C.it believes certain amount of intake of sugar does us good
D.it has been put under pressure by food and drinks companies
61.When reporting the argument about sugar,the author seems toB.
A.remain objective                    B.stand by those against it
C.believe it harmless                 D.hold the view of"wait-and-see"
62.Which of the following can be the proper title for the passage?A
A.Is sugar the new evil?B.How much sugar do you take daily?
C.Is sugar to be taxed?D.How much do you know about sugar?

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