2019版高考英语一轮巩固达标练 Unit 2 Working the land（含解析）新人教版必修4

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1、2Workingtheland***阅读理解。Thosewhoclaimbananasarefatteningarguethatbananascausethebodytomakelotsofinsulin(胰岛素),andinsulincausesfatgrowth.Howmuchinsulinweproduceisrelatedtohowfastfoodbeessugarinourbloodstream.Howcanyouknowiffoodmakesalotofsugarquickly?Theglycemicindex(血糖指数),o

2、rGIratingtellsus.FoodswithGIscoresabove75areconsideredhighGIfoods,leadingtofastersugardevelopment.BananashaveaGIof62,whichisconsideredlow.Weightlosscanbeastruggleforanyone,butitisespeciallyhardfordiabetics(糖尿病患者).Astudylookedathowthestarchfromunripebananasaffectedtheweigh

3、tofagroupofobesediabetics.Afterfourweeksofadiethighinbananas,diabeticslostsignificantlymoreweightthanonacontroldiet.Theyalsosawimprovementsininsulinsensitivityfromthebananadiet.What’smore,bananashavebeenshowntocutrisksofstrokes,diabetesandcancers.(Bananasarethemostpowerfu

4、lfruitforloweringtheriskofkidneycancer.)Bananasarealsoarichsourceoffiber,whichhasbeenshowntohelpweightloss.Bananasthatstillhavesomegreenontheskinareevenhigherinfiber.Skinsfromgreenbananascanbetakenand,afterremovingthestemanddarktip,cutintosmallpieces2－3incheslongand1/2inc

5、hwide.Thesepiecescanbemadeintoateaoraddedtoadish.Whenyoueattheskins,besureyouareeatingorganicbananas.Thefleshofregularbananasislowinpesticides,buttheskinsarenot.【解题导语】　本文反驳了“吃香蕉会使人发胖”这一错误观点，告诉大家香蕉不会使身体分泌很多胰岛素而导致脂肪增加，相反，香蕉对身体健康有着诸多好处。1．WhatconclusioncanwedrawfromParagraphs

6、1&2?A．Bananasarelikelytomakepeoplefat.B．Insulindeterminestheamountofsugar.C．LowGIfoodscanturnintosugarmoreslowly.D．Thefasterthefoodbeessugar,thelessinsulin.C　解析：推理判断题。根据第二段中“Howcanyouknowiffoodmakesalotofsugarquickly?Theglycemicindex(血糖指数)．..fastersugardevelopment.”可知，血糖指

7、数高的食物往往能更快地转化成糖分，反之，血糖指数低的食物转化成糖分的速度较慢。故选C。2．Whatdoestheauthorsayaboutbananas?A．Includingbananasindietsisgoodforhealth.B．Bananascancurepeoplesufferingkidneycancer.C．Eatingorganicbananascanprotectpeoplefromstrokes.D．Bananas’abundantfiberimprovesinsulinsensitivity.A　解析：推理判断

8、题。根据文章第三段中的“...diabeticslostsignificantlymoreweightthanonacontroldiet.Theyalsosawimprovementsini