【正文】 e fire broke out . 5. __________ Linda finally saw Davy , he was jumping with a dog . 7． _______ we were talking in the classroom,the teacher came in． 8． _______ they got to the airport,it was raining． 9． _______ she was reading a book,the phone rang． 10． _______ I saw the boy,he was wearing a new coat． 11． _______ he was reading,he fell asleep Margo was talking on the phone,her sister walked in. we visited the school,the children were playing games. Sarah was at the barber39。 more C. more。 are ( ) was reading English ___ the teacher came in . A. as B. after C. as soon as D. when ( ) there are _____trees, the air in our city will be _____ cleaner. A. less。 did C. Are。 do B. Did。 is swimming ( )37. _____ you _____ to music now? Yes, we _____ . A. Do。 is swimming D. is。 swims B. is。 doing ( )36. Where ______ the boy _____ ? He _____ across the river now. A. does。 is doing B. likes。 drink C. drank。 don’t ( )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。 didn’t C. Do。 doesn’t B. Did。 watched ( )32. _____ you _____ fishing yesterday? No, we _____ . A. Does。 watches 。 is going to wash C. is washing。 drink ( )30. He usually _____ the dishes at night, but tonight he _____ clothes. A. wash。 drink B. sees。 draw C. draws。fell ( )27． Everybody, young or old,_____ visiting the Great Wall． A． enjoy B． enjoy s C． was enjoying D． is enjoying ( )28. Tim always _____ a picture at home. He _____ a car now. A. draws。was falling C． read。 Unit 3 What were you doing when the UFO arrived？ 練習(xí)題 單項(xiàng)選擇 ( )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 didn’t 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 e 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 . It’s hot here. Why not _______your coat? A. put on B. dress up C. try on D. take off[來(lái) ] ( )8 The child isn’t 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. It’s 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 Don’t 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 didn’t e home as _______ as you. A. early B. earlier C. very early D. the earliest ( )15 She was ill, ________ she didn’t go to school. A. because B. so C. but D. or ( )16． He was sleeping late _______ someone knocked on the door． A． when B． while C． as D． after ( )17． _______ the police arrived, the alien left the ground． A． When B． Before C． After D． While ( )18． _______ I was walking to school, I saw a cat climbing a tree． A． When B． While C． Before D． After ( )19． You can _______ how strange the UFO was． A． know B． imagine C． think D． imagined ( )20． An alien got out _______ the UFO and walked _______ the street． A． off； on B． from； along C． of； down D． in； in ( )21． —What were you doing at this time yesterday?—I _______． A． sleep B． slept C． was sleeping D． sleeping ( )22． Seeing a UFO is a _______ thing． A． amazing B． amazed C． amazement D． amaze ( )23． The girl was _______ at the st range noise． A． scared B． scare C． scaring D． scares ( )24． _____ I was talking on the telephone,David came in． A． Because B． While C． If ( )25． Mrs Read,together with her sons,_____supper at 7 o’clock yesterday evening． A． was eating B． were eating C． was eat D． were eat ( )26．