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1、Unit4Astronomythescienceofthestars李仕才一、阅读理解。(2018·合肥市调研性检测)Theeffectsofcoffeeconsumptiononhealthhavelongbeenasubjectofconflictanduncertainty.Sincethe1980s,somehavespokenoutagainstcoffeeasit’sharmfultohealth,whileothershavewelcomedcoffeeforitssupposedbenefitstohealth.Accordingtoasci
2、entificreport,mildcoffeeconsumption,threetofivecupsperday,canbetakenasahealthydietarypattern,alongwithotherhealthfulbehavior.ThereportalsosaysthatcoffeeconsumptionhelpsreducetheriskofheartdiseaseanditprotectsagainstParkinson’sdisease.AccordingtoDr.DonaldHensrudofMayoClinic,highcons
3、umptionofcoffeehashealthrisks.Dr.Hensrudmentionsthedangersofhighcoffeeconsumptionforpeoplewithacertainillnessthatslowsthebreakdownofcaffeineinthebody.Somestudiessaidthatdrinkingtwoormorecupsofcoffeedailycanactuallyincreasetheriskofheartdiseaseinthesepeople.Accordingtoconclusionsfro
4、marecentstudyledbyDr.GregoryMarcus,adoctorfromtheUniversityofCalifornia,SanFrancisco,dailymoderateconsumptionofcaffeine,lessthan4cups,isnotassociatedwiththeseissues.Untilthescientificcommunityreachesageneralagreementontheeffectsofcoffeeconsumptiononhumanhealth,itwillbeuptotheindivi
5、dualtodecidewhetherthebenefitsofdrinkingcoffeearegreaterthantherisks.Wheninformedofthesepossiblehealthbenefitsandharmofdrinkingcoffee,Harwood,ahighschoolstudentstated,“Eventhoughtheremightbesomenegativeeffectsofdrinkingcoffee,forthemostpart,coffeedrinkingsoundsgoodforhealth.Nottome
6、ntionIneedcoffeetostayawake.”【解题导语】 本文是一篇说明文。主要介绍了人们对咖啡是否有益于身体健康的几种不同观点。1．Whatisthepeople’sattitudetowardstheeffectsofcoffeeonhealthaccordingtoParagraph1?7A．Disapproving. B．Tolerant.C．Doubtful.D．Mixed.D 解析：细节理解题。根据第一段可知，长期以来，饮用咖啡是否对健康有影响一直是有争议的、不确定的。一些人认为咖啡有害于健康，一些人则认为其有益于健康
7、。D项意为“混合的，混杂的”，符合题意，故D项正确。2．Whatdoestheunderlinedword“moderate”inParagraph4probablymean?A．Personal.B．Slight.C．Reasonable.D．Heavy.C 解析：词义猜测题。根据该句中的“lessthan4cups”可知，饮用的咖啡不超过4杯；据此可以判断，该句是说，每天摄入适量的咖啡因对身体无害。据此可知，画线词意为“适度的”，故C项正确。3．WhatcanweinferaboutHarwood?A．He’llkeepondrinkingcoffee.
8、B．Heloveshishighschoollife
