高考英语一轮复习Unit1Livingwell练习新人教版选修

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1、Unit1　LivingwellⅠ.阅读理解(2018河北石家庄二中一模)It’s3o’clockandyou’vebeenhardatwork.Asyousitatyourdesk,astrongdesireforchocolateovercomesyou.Youtrytobusyyourselftomakeitgoaway.Butitdoesn’twork.Hereisanothersituation.Perhapsyouarenotfeelingwell.Theonlythingyouwanttoeatisabigbowlofchickensoup,li

2、keyourmomusedtomakewhenyouweresickasachild.Foodcravings(渴望)areastrongdesireforaspecifictypeoffood.Andtheyarenormal.ScientistsatthewebsiteHowStuffWorkscomparehungerandcravingsthisway:Hungerisafairlysimpleconnectionbetweenthestomachandthebrain.Theyevencallitsimply“stomachhunger”.Wheno

3、urstomachsburnupallofthefoodwehaveeaten,ahormonesendsamessagetoonepartofthebrainformorefood,whichregulatesourmostbasicbodyfunctionssuchasthirst,hungerandsleep.Thebrainthenproducesachemicaltostarttheappetiteandyoueat.Hungerisafunctionofsurvival.Acravingismorecomplex.Itactivates(激活)br

4、ainareasrelatedtoemotion,memoryandreward.Thesearethesameareasofthebrainactivatedduringdrug-cravingstudies.Somescientistscallfoodcravings“mindhunger”.Peopleoftencravefoodsthatarehighinfatandsugar,whichproducechemicalsinthebrain.Thesechemicalsgiveusfeelingsofpleasure.Ina2007study,rese

5、archersatCambridgeUniversityfoundthat“dietingorrestrictedeatinggenerallyincreasesthepossibilityoffoodcraving”.Thus,themoreyoudenyyourselfafoodthatyouwant,themoreyoumaycraveit.However,fastingisabitdifferent.Theyfoundthateatingnofoodatallforashortperiodoftimelessenedfoodcravings.There

6、fore,thenexttimeyoucravesomethingveryspecific,knowthatyourbrainmaybemoretoblamethanyourstomach.1.Whatisthefunctionofthefirstparagraph?A.Toremindreadersoftheirownspecialfood.B.Todeepentheunderstandingofhunger.C.Toreportthediscoveryofcravingstudy.D.Toleadtothetopicofthewholepassage.2.

7、Whatdowelearnaboutfoodcraving?A.Itshowsfoodislinkedtofeelings.B.Itensuresapersonsurviveshunger.C.Itmeansthestomachfunctionswell.D.Itprovesthebraindecidesyourappetite.3.What’sthelikelyresultofdieting?A.Thedecreaseofchemicals.B.Theincreaseofthedesireforfood.C.Therefusaloffatandsugar.D

8、.Thedisappearanceof