易错试题精选十七一．阅读理解Haveyoueverbeensadbecauseyoufailedinsomething?Ifso,pleaseremember,foroften,achievingwhatyouexpectisnotthemostimportantthing.Hereisastorytotellyouwhy.Onedayalittleboydecidedtodigaholebehindhishouseafterwatchingascienceprogram.Ashewasworking,acoupleofboysstoppedbytowatch.“Whatareyoudoing?”askedoneofthevisitors.“Iwanttodigadeepholeallthewaythroughtheearth!”theboyansweredexcitedly.Theolderboysbegantolaugh,tellinghimthatitwasimpossibletodoit.Thentheyleft.Thelittleboykeptondigginganddigging.Suddenly,afewsmallcolorfulstonescaughthiseyes.Hecollectedthemandputthemintoaglassjar(罐)patiently.Humming(哼唱)asong,hewentondigging.Thejarwasfullsoon.Thenhetalkedtohimselfcalmlyandproudly,“MaybeIcan’tfinishdiggingallthewaythroughtheearth,butlookatwhatIhavefoundintheprocess(过程)ofdigging!”Theboy’sgoal(目标)wastoodifficult,butitdidcausehimtogoon,inotherwords,tocauseustokeepworking!Noteverygoalwillbeachieved.Noteveryjobwillendupwithasuccess.Noteverydreamwillcometrue.Butwhenyoucan’tachieveyourgoal,maybeyoucansay,“Yes,butlookwhatI’vefoundalongtheway!TherearesomanywonderfulthingsthathavecomeintomylifebecauseItriedtodosomething!”Itisinthediggingthatlifeislived.Itistheunexpectedjoyonthejourneythatreallyhasameaning.1.Whatdidtheboydoafterwatchingaprogram?A.Heboughtaglassjar.B.Heplayedwithsomevisitors.C.Hestartedtodigahole.D.Hewentonwatchingtheprogram.2.Whatdidtheolderboysthinkofthelittleboy?A.Hewassilly.B.Hewasstrong-minded.C.Hewasstrict.D.Hewasenergetic.3.Whatdoestheunderlinedsentence“Itisinthediggingthatlifeislived.”meanaccordingtothearticle?A.Lifeistomakeabigsuccess.B.Lifeisdifficultbutcolorful.C.Lifeistofindthecolorfulstones.D.Lifeisonthewaytoachievethegoal.二．Haveyoueverexperiencedthefeelingoffallingasyoustarttofallasleep?Sometimesyoumaycometorealizethisfeeling.Ifso,don’tworry.Manypeoplehavefeltthesamething.Infact,thesemuscletwitches(肌肉抽搐)inthearms,legsorotherpartsofthebodyarecalledhypnicjerks(入睡抽动)orsleepstarts.Andtheyareverycommon.Upto70percentofpeopleexperiencethemsometimes,HuffingtonPostreported.Butwhatcausesit?Therearesometheories(理论).Somescientistsbelievethatthefeelingoffallingcomesfromthebodyrelaxingitself,especiallyifthepersonisanxiousorunabletogetcomfortable.Asyou’reabouttosleep,yourmusclesbecomerelaxed.Butyourbrainstaysawake.Itmisunderstandstherelaxingofyourmusclesasasignthatyou’refalling.Thenthebrainjerksthebodyawakeasifit’stryingtoprotectyou.Otherscientistsbelievethatdifferentphasesofsleepmightcausethehypnicjerks.Whenwesleep,weexperiencetwophases:non-rapideyemovement(NREM)andrapideyemovement(REM).DuringREM,ourheartrate(心率),breathingandnervoussystemcanactirregularly(不规律地).Ifthebodyexperiencesflashes(一瞬间)ofREMwhileenteringsleep,theseirregularitiescouldcausetwitches.Ifyoudon’twanttoexperiencehypnicjerks,scientistshavesomesuggestions.Whenyoubecomedeeplyrelaxed,youcanlearnhowtoreconnectslowlybymovingyourfingersandtoesalittlebit.Thenstarttomoveyourheadandopenyoureyes,whilebeingawareofyourselfasyougetoutoftherelaxedstate.Butexpertsagreethathypnicjerks,thoughsometimesscary,areharmless.Ifitwakesyouup,simplyrolloverandgobacktosleep.Butkeepinmind:acaffeinated(含咖啡因的)drink,excitingeveningactivitiesorstressmaymakehypnicjerkshappenmoreoften.1.Thethirdparagraphmainlytellsus_____________.A.thereareallkindsoftheoriesabouthypnic...
