冠词练习：用a或an填空。____“U”____ice-cream____goalkeeper____teapot____apple____office____Englishbook____umbrella____unit____hour单项选择：   上学  A. go to school    B. go to the school       go to a school   住院  A, in the hospital  B. in a hospital    C. in hospital   此刻  A. at the moment   B. at a moment    C. at moment  在课堂上  A. in class    B. in a class   C. in the class  在地球上  A. on earth   B. on an earth    C. on the earth   步行  A. on foot   B. on the foot    C. on feet   玩得痛快A. have good times      B. have a good time       C. have good times三.在下列句中空白处填入合适冠词，不需用冠词处划×。1．Thereis_______pictureof_______elephanton_______wall．2．Thisis_______usefulbook．I'vereaditfor_______hour．3．_______elephantismuchheavierthan_______horse．4．_______doctortoldhimtotake_______medicinethreetimes_______day．5．Let'sgooutfor_______walk．6．It'stoohot．Open_______door，please．7．Thereis_______womanoverthere．_______womanisMeimei'smother．8．_______sunrisesin_______east．9．_______ChangjiangRiveris_______longestriverin_______China．10．Areyougoingtodoit_______secondtime？11．Washingtonis_______capitalof_______USA．12．_______Turnersarelivingattheendof_______TurnerStreet．13．Hejoinedthearmyin_______springof_______1995．14．______oldmanis______teacher．Helikesplaying______basketballafter_______supper．15．AfterIhad_______quickbreakfast，Ihurriedtoschool．16．Are_______sheepkeptby_______farmersforproducing_______wooland_______meat？17．Theywentto_______People'sPark，butwebothwentto_______People'sCinemayesterday．18．Ioftenwatch_______TVin_______evening．19．_______dayof_______December20，1999isMonday．20．Tomorrowis_____ChristmasDayandmyfatherandIwenttochoose_____Christmastreetoday．21．Ithink_______mathsismoreimportantthananyothersubject．22．Heoftengoesto_______schoolby_______bike．23．Whatdoesthis_______wordmean，_______Father？24．What_______importantnews！选择填空：   There is ______ old woman in the car.   /          B. the       C. a       D. an   Shanghai is in _______ east of China.   /       B. an      C.