邯郸市临漳县第一中学高二下学期英语作业（实验班）.docxVIP

学必求其心得，业必贵于专精

学必求其心得，业必贵于专精

学必求其心得，业必贵于专精

实验班英语周考试题

阅读理解（每题2分，满分16分)

(A)

Hereisanastonishingandsignificantfact:Mentalworkalonecantmakeustired。Itsoundsabsurd.Butafewyearsago,scientiststriedtofindouthowlongthehumanbraincouldlaborwithoutreachingastageoffatigue(疲劳)。Totheamazementofthesescientists,theydiscoveredthatbloodpassingthroughthebrain，whenitisactive,showsnofatigueatall!Ifwetookadropofbloodfromadaylaborer,wewouldfinditfulloffatiguetoxins(毒素）andfatigueproducts。ButifwetookbloodfromthebrainofanAlbertEinstein,itwouldshownofatiguetoxinsattheendoftheday。

Sofarasthebrainisconcerned，itcanworkaswellandswiftlyattheendofeightoreventwelvehoursofeffortasatthebeginning。Thebrainistotallytireless。Sowhatmakesustired？

Somescientistsdeclarethatmostofourfatiguecomesfromourmentalandemotional(情感的）attitudes。OneofEngland’smostoutstandingscientists,J。A。Hadfield，says,“Thegreaterpartofthefatiguefromwhichwesufferisofmentalorigin。Infact，fatigueofpurelyphysicaloriginisrare。”Dr。Brill，afamousAmericanscientist,goesevenfurther。Hedeclares，“Onehundredpercentofthefatigueofasittingworkeringoodhealthisduetoemotionalproblems。”

Whatkindsofemotionsmakesittingworkerstired?Joy?Satisfaction？No！Afeelingofbeingbored,anger,anxiety，tenseness，worry，afeelingofnotbeingappreciated—thosearetheemotionsthattiresittingworkers.Hardworkbyitselfseldomcausesfatigue.Wegettiredbecauseouremotionsproducenervousnessinthebody.

1。Whatsurprisedthescientistsafewyearsago？

A。Fatiguetoxinscouldhardlybefoundinalaborersblood.

B.AlbertEinsteindidn’tfeelwornoutafteraday’swork.

C.Thebraincouldworkformanyhourswithoutfatigue.

D.Amentalworker’sbloodwasfilledwithfatiguetoxins.

2。Accordingtot