完成句子专练A.Teenagelife-betternow，orinthepast？Doesthissituationsoundfamiliar（熟悉）？Youarecomplaining（抱怨）toyourparentsaboutsomething．Maybeyourcomputerisn'tpowerfulenoughtoplaythelatestgames．（1）Thenyouhear…“WhenIwasyourage，thereweren'tanycomputersorvideogames．AndIdidn'tgetabikeuntilIwassixteen．Anditwassecond-hand．（2）”So，isitreallytruethatlifeisbetterforteenagersnow？Itiscertainlytruethatmanyteenagershavegotmorethingsnowadays．（3）Soparentshavegotmoremoneytospendoneachchild．Andmanythingsarecheaperthantheywerewhenourparentswerechildren．（4）Fortyyearsago，noonecouldimagineaworldwithtinycomputersandamazingsmartphones．Andnowthesethingsarenecessary-wecan'timaginelivingwithoutthem!However，technologyoftenmeanswespendmoretimeathome．Andoftenit，sjustus，withourcomputerortelevision．Teenagersdon'tdoenoughexercise．（5）And，althoughyoungpeoplestillgetonwellwiththeirfriends，somepeoplethinkteenagerstodaydon'thavesomanysocialactivitiesastheydidinthepast．Whatdoyouthink？Howisteenagelifebetterthesedays？A．Anditwastoobigforme．B．Atypicalfamilyissmallernow．G．Oryourfriends'bikesarebetterthanyour!D．Sotheyaren'tashealthyastheywereinthepast．E．Technologyisprobablythegreatestchangeinourlife．答案：CABEDBShoppingMallsarepopularplacesforAmericanstogo.1Mallratsshopuntiltheydropinthehundredsofstoresunderoneroof.Peoplelikemallsformanyreasons.Theyfeelsafebecausemallshavepolicestationsorprivatesecurityguards（私人保镖）.2.Peoplecanalsorelaxinthebeautifulrestareasforfree.3Ithas350stores,eightnightclubs,andaseven-acre(英亩)carpark!Thereareparkingspacesfor12750cars.About750000peopleshopeveryweek.Peopleloveddoingalltheirshoppinginoneplace.Moremallswerebuiltalloverthecountry.Now,mallsareliketowncenterswherepeoplecometodomanythings.Theyshop,ofcourse,theyalsoeatinfoodhousesthathavefoodfromallovertheworld.Theyseemoviesattheatres.4Othersgotomallstomeetfriends.Insomemalls,peoplecanseeadoctororadentistandevenattendchurch.5.Nowresidents（居民）canactuallyliveintheirfavoriteshoppingcenter.A.Parkingisusuallyfree,andthe