Unit 3 What were you doing when the UFO arrived？练习题单项选择( )1 . Linda was just going out shopping _ the telephone rang., A. while B. when C. after D. because( )2 . I met Mr. Green _ I was walking across the bridge, but I didnt say hello to him. A. before B. after C. until D. while( )3 When his mother got home, Jimmy _ the toys together busily. A. put B. was putting C. puts D. to put( )4 Did you notice him come in? No. I _ a football game. A. have watched B. had watched C. am watching D. was watching( )5 Would you please drive faster? My flight is _. A. taking off B. getting off C. turning off D. putting off( )6 The doorbell rang, and mother _ the door A. stopped open B. stopped opening C. stopped to open D. stopped opened( )7 . Its hot here. Why not _your coat? A. put on B. dress up C. try on D. take off( )8 The child isnt old enough to _ himself. A. wear B. put on C. have on D. dress( )9. Listen! Can you hear a baby _? A. cry B. to cry C. crying D. cries( )10. Excuse me, would you please tell me _? Certainly. Go straight along here. Its next to a hospital. A. how we can get to the post office B. how can we get to the post office C . how get to the post office D. how could we get to the post office( )11 . All of us felt _ when we saw such a little girl speak very good English. A surprise B. surprised C. surprising D. in surprise( )12 Dont be angry _ me. A. at B. to C. with D. for( )13 She _ her homework at five yesterday. A. did B. is doing C. was doing D. does( )14 She didnt come home as _ as you. A. early B. earlier C. very early D. the earliest( )15 She was ill, _ she didnt go to school. A. because B. so C. but D. or ( )16He was sleeping late _ someone knocked on the doorAwhen Bwhile Cas Dafter( )17_ the police arrived,the alien left the groundAWhen BBefore CAfter DWhile( )18_ I was walking to school,I saw a cat climbing a treeAWhen BWhile CBefore DAfter( )19You can _ how strange the UFO wasAknow Bimagine Cthink Dimagined( )20An alien got out _ the UFO and walked _ the streetAoff；on Bfrom；along Cof；down Din；in( )21What were you doing at this time yesterday?I _Asleep Bslept Cwas sleeping Dsleeping( )22Seeing a UFO is a _ thingAamazing Bamazed Camazement Damaze( )23The girl was _ at the strange noiseAscared Bscare Cscaring Dscares( )24_ I was talking on the telephone,David came inABecause BWhile CIf( )25Mrs Read,together with her sons,_supper at 7 oclock yesterday eveningAwas eating Bwere eatingCwas eat Dwere eat( )26When she _ the newspaper,Granny _asleepAread;fell Bwas reading;was fallingCread;was falling Dwas reading;fell( )27Everybody, young or old,_ visiting the Great WallAenjoy Benjoys Cwas enjoying Dis enjoying( )28. Tim always _ a picture at home. He _ a car now. A. draws; is drawing B. draw; draw C. draws; draw( )29. She usually _ her friends. They often _ tea.A. see; drink B. sees; drinks C. sees; drink ( )30. He usually _ the dishes at night, but tonight he _ clothes. A. wash; wash B.washes; is going to wash C. is washing; washes( )31. Mr. Green usually _ his newspaper in the evening, but he and his wife _ television yesterday evening. A.reads; watches B.reads; is going to watch C.reads; watched( )32. _ you _ fishing yesterday? No, we _ . A. Does; go; doesnt B. Did; go; didnt C. Do; go; dont( )33. Open the window, Please. Look! He _ it. A. opens B. is openning C. is opening ( )34. I usually _ some milk every day. But I _ coffee yesterday. A. drink; drank B. is drinking; drink C. drank; am drinking( )35. The old man _ playing sports in the park. He _ morning exercise now. A. likes; is doing B. likes; does C. like; doing( )36. Where _ the boy _ ? He _ across the river now. A. does; swim; swims B. is; swimming; is swimming D. is; swimming; is swimming( )37. _ you _ to music now? Yes, we _ . A. Do; listen; do B. Did; listen; did C. Are; listening; are( )38.I was reading English _ the teacher came in . A. as B. after C. as soon as D. when ( )39.If there are _trees, the air in our city will be _ cleaner.