高中英语单元质量评估四新人教版

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1、单元质量评估(四)时间：100分钟　分数：120分第一部分　阅读理解(共两节，满分40分)第一节(共15小题；每小题2分，满分30分)阅读下列短文，从每题所给的四个选项(A、B、C和D)中，选出最佳选项。AWehaveallheardthesewords：“justputonahappyface”or“turnthatfrownupsidedown”．Canthesimpleactofsmilingactuallymakeusfeelbetter?Ourfaceisformedbyavarietyofratherthin

2、bones.Themusclesthatattachtothesebonesbecomesmallerwhenwearehappyorwhenwewanttolaugh.Theresultingfacialexpressionisuniversallyrecognizedasasmileandindicatesourpositiveemotionalstatus.Sometimes，peoplepresentfake(假的)smiles.Buthowdoesthebrainachievebothtypesofsmiles

3、usingthesamefacialmuscles?Italldependsuponwhichpartofthebrainstartsthesmile.Ifthebrain'sdopamineneurons(多巴胺能神经元)startthesmile，thenthesmilelookssincere.Ifthebrain'smotorcortexstartsthesmile，inotherwords，ifweareconsciouslywillingourselvestosmile，thenaslightlydiffer

4、entsetoffacialmusclesareactivated.Itcanbedifficulttodescribepreciselyhowrealandfakesmilesdiffer，butweareallverycapableatknowingthedifference.Butcanforcingyourselftosmileproducethesamekindsofgoodfeelingsasarealsmiledoes?Anythingthatpromptsthereleaseofdopamineinthe

5、brainbringspleasure.Forexample，cocaineandcoffeebothreleasedopamineinthebrain.Thereleaseofdopamineinthefronthalfofourbrainisaccompaniedbyarealsmile.Butcanthisprocessbereversed?Whataboutputtingonthathappyface?Canthesimpleactofsmilingbringpleasure?Yes.Whenwesmile，fa

6、keorreal，thecontractionofthefacialmusclesslightlydistorts(扭曲)theshapeofthethinfacialbones.Thisslightdistortionintheirshapeleadstoanincreaseinbloodflowintothebrainandthenincreasesthereleaseofdopamine.Asaresult，walkingaroundalldaywithasmileonyourfacewillmakeyourmoo

7、dhappier.Notonlywillyoubehappierbutyoursmilemightleadtothereleaseofdopamineinsomeoneelse'sbrain—nowthattrulyshowsthepowerofasmile.【语篇解读】　我们经常说，面带微笑不仅可以让自己快乐，也会让别人感受到快乐。本文就围绕微笑是如何使人快乐的进行了论述。1．Whenwesmilesincerely，________．A．bonesinourfacebecomethinB．musclesinthefa

8、cebecomesmallerC．thebrain'sdopamineneuronsstopworkingD．thebrain'smotorcortexstartstowork解析：细节理解题。根据第二段第二句“Themusclesthatattachtothesebonesbecomesmallerwhenwear