七年級(jí)下冊(cè)Units1～3一、完成句子根據(jù)所給漢語句子完成英語句子，詞數(shù)不限。1．她積極參加對(duì)這些貧困孩子的教學(xué)工作。_________________________________________________________________2．瑪麗正在找她的自行車。_________________________________________________________________3．他多次打電話卻沒有人接聽。_________________________________________________________________4．你對(duì)你最終的決定有把握嗎？_________________________________________________________________二、閱讀理解Manypeopledreamoftravelingintoouterspace.However,spendingtoomuchtimeinspacemaycausehealthproblems,accordingtoNASA.That'swhyastronautsshouldn'tspendmorethansixmonthsontheInternationalSpaceStation(ISS)atatime.Muscle(肌肉)andbonelossInaweightlessenvironment,astronautsdon'tneedtousetheirmusclestosupportthemselves,sotheirmusclesstartshrinking.Tokeeptheirmusclesstrong,astronautsneedtoexerciseabout2hourseachdayontheISS.Sleepdisorder(混亂)Inspace,thesunrisesevery90minutes.Itishardforastronautstogetusedtothislight-darkcyclewhentheysleep.Also,theyneedtosleepinasleepingbagthatisfixedtoawall,anditisuncomfortable.Astronautsnowhaveindividualsleepingpods(分離艙)thathelpshutoutsomeofthelight.Still,studieshavefoundthatmostastronautsonlysleepaboutsixhourseachnight,eventhoughtheyshouldhaveeightandahalfhours.BrainchangesScientistshavefoundthatthepositionofthebrainchangesduringspaceflight.Itcanaffecthowthebraindealwithhowwesee,staybalancedandmovearound.That'swhysomeastronautscan'tcontroltheirmovementandbalanceafterreturningtotheEarth.Scientistshavealsofoundthatastronautsmaygetusedtothischangeaftergoingonmorespaceflights.Buttheystillneedtodomoreresearch.1．Accordingtothepassage,astronautsmayhavethefollowinghealthproblemsEXCEPT________．A．headache B．brainchanges C．sleepdisorder2．AstronautsmayhavemuscleproblemsafterreturningtotheEarthbecause________．A．theyseldomwalkwhileinspaceB．theyaretoobusytoexerciseinspaceC．theydon'tneedtousetheirmusclestosupportthemselvesinspace3．Astronautssleepinindividualsleepingpodsto________．A．staywarmatnight B．shutoutlight C．enjoyaquietplace4．Theunderlinedword“shrinking”inthesecondparagraphmeans“________”．A．萎縮 B．改變 C．消失5．Thebesttitleofthispassageis“________”．A．SleepdisorderinspaceB．BrainchangesinspaceC．Healthproblemsinspace參考答案【習(xí)題清單·過達(dá)標(biāo)關(guān)】一、1.Sheplaysanactivepartinteachingthesepoorchildre