unit3whatwereyoudoingwhentheufoarrived whatwereyoudoingwhentheufoarrived a iwasstandinginfrontofthelibrarywhentheufoarrived a whatwereyoudoingwhentheufoarrived b iwassleepinglateinmybedroomwhentheufoarrived whatwereyoudoingwhentheufoarrived iwascookingdinnerinthekitchenwhentheufoarrived whatwereyoudoingwhentheufoarrived iwascuttinghairinthebarbershopwhentheufoarrived whatwereyoudoingwhentheufoarrived iwasgettingoutoftheshowerfromthebathroomwhentheufoarrived whatwereyoudoingwhentheufoarrived studyforthetest whatwereyoudoingwhentheufoarrived haveaparty whatwereyoudoingwhentheufoarrived fishnearthebeach whatwereyoudoingwhentheufoarrived climbthemountains whatwereyoudoingwhentheufoarrived stayinthelibrary whatwasshedoingwhentheufoarrived takingabath inthebathroom studyingenglish intheclassroom takingawalk nearmyhouse talkingwithmytutor atthestreetcorner climbingthemountainbuyingadictionary atthebookstore comingtoschoolwithpeter whatwereyoudoingwhentheufoarrived eatinglunch atschool goingtothelibrarymakingasmoothie inthekitchen shouting ontheplayground exercises yesterdaymorningwhentheufolanded mr green mr liwas mary tony mr black mr green yesterdaymorning whentheufolanded ms lin yesterdaymorning yesterdayafternoon yesterdayevening lucy yesterdaymorning yesterdayafternoon yesterdayevening 2alistenandorderthesestatements 1 5 thealienvisitedthemuseumofflight thealienboughtasouvenir aufolandedoncenterstreet thealienwentintoastore analiengotoutoftheufo alien外星人 buy bought land著陸 get got 1 2 3 4 5 2blistenagain completethefollowingsentenceswith when or while theboywaswalkingdownthestreetaufolanded 2 thegirlwasshoppingshesawthealiengetout 3 thealienwasbuyingasouvenir thegirlcalledthepolice 4 thealienwasvisitingthemuseum theboycalledthetvstation when when while while 當 的時候 thinkandcompare theboywaswalkingdownthestreetwhenaufolanded whiletheboywaswalkingdownthestreet theufolanded whilethegirlwasshopping thealiengotout thegirlwasshoppingwhenthealiengotout iknow 1 while當 時候 后面跟的動作延續 多用進行時態 2 when當 時候 后面跟的動作不延續 多用過去時態 whateachpersonwasdoingwhentheufolanded makesentencewith when and while thenimaginewhatyouweredoing a whatwasthegirldoingwhentheufotookoff b whilethegirlwas c whentheufotookoffthemanwas reporter exercises choose when or while tofillintheblanks 1 iwaswalkinginthestreet theaccidenthappened 2 iwasdoingmyhomework thetelephonerang 3 itwasraining theplanetookoff 4 theteacherwasspeakingtoclass nickstoodupsuddenly when while while while 1 weweretalking theteachercameintotheclassroom 2 iwassinging hewasdancing 3 iwascuttinghair theufolanded 4 theboyswereplayingbytheriver tomfellintotheriver 5 mymotherwaswashing myfatherwascooking 6 whatwereyoudoing theufoarrived when when when while while while makesentenceswithwhenorwhile i hewas when whiletheteachercameintotheclassroom when whilei hewas thetelephonerang pleaseremember don ttouchit whilethedogissleeping 不要惹事生非 whilethereislife thereishope 生命不止 希望不滅 1 過去進行時表示過去正在進行的動作 而一般過去時則表示一個完整的動作 如 theywerewritingletterstotheirfriendslastnight 昨晚他們在寫信給他們的朋友 沒有說明信是否寫完 theywroteletterstotheirfriendslastnight 他們昨晚寫了信給他們的朋友 表達了他們已寫好的意思 整個寫的過程已完成 2 當動作延續較長時間時或表示厭煩 贊美等感情色彩時 常用過去進行時表示 如 hewasthinkingmoreofothersthanofhimself 他考慮別人的比考慮自己的多 表示說話者贊揚的口氣 theboywasalwaysmakingtroublethen 那時 他總是惹麻煩 表示說話者厭煩的口氣 3 iwasgettingoutoftheshower 我正洗完澡出來 getout 出來 getoutof 從 出來 4 iwaswalkingdowncentrestreetwhenaufolanded walkdown along沿著 走land 著陸 下降 動詞 takeoff 起飛 e g theplanelandedsafely 5 thegirlwasshoppingwhenthealiengotout whilethegirlwasshopping thealiengotout when與while區分 1 當 的時候 如后面連接的動詞為進行時態 則用while多于用when 而when通常與瞬間性動詞或延續性不強的動詞連用 2 如果while前后的動詞都是進行時態 while可譯為 與此同時 iwasreadingwhilemybrotherwasdrawing 3 當while前后的句子描述的情況相對或相反 while可譯為 而 while更強調并列的對比而非轉折 e g iamout goingwhilemysisterisquietandshy 總之 when表示做某種動作的時間或瞬間 由其引導的時間狀語的時態如果是一般過去時 其主句通常要用過去進行時 while表示略長的一段時間 由其引導的時間狀語從句用過去進行時 而主句時態根據實際情況而定 6 ihadaveryusualexperienceonsunday experience可數名詞 經歷 anexperience一次經歷 7 ifollowedittoseewhereitwasgoing andiwasverysurprisedwhenitwentintoasouvenirshop 8 isn tthatamazing 太令人驚嘆了 這是感嘆句的一種表達形式 如