used-to的用法小结

usedto的用法小结1．usedtodosth.表示“过去常常做某事”，将过去和现在对比，暗示现在不做了。to为动词不定式符号，后接动词原形。如：Heusedtogotoschoolatsixo'clock.他过去常常六点去上学。2．usedtodosth.的否定形式主语＋usedn'ttodosth.或主语＋didn'tusetodosth.如：Heusedtoplaycomputergamesallday.他过去常常整天玩电脑游戏。→Heusedn'ttoplaycomputergamesallday.＝Hedidn'tusetoplaycomputergamesallday.他过去不常整天地玩电脑游戏。【注意】usedn't＝usednot3．usedtodo的疑问句形式及其答语(1)Used＋主语＋todo…？回答：Yes，sb.usedto./No，sb.usedn'tto.如：TomusedtowatchTV.→UsedTomtowatchTV?Yes，heusedto./No，heusedn'tto.(2)Did＋主语＋usetodo…？回答：Yes，sb.did./No，sb.didn't.如：Iusedtodohomeworkafterschool.→Didyouusetodohomeworkafterschool?Yes，Idid./No，Ididn't.4．usedtodo的反意疑问句形式也有两种，类似于否定句形式。如：—TheyusedtoseeEnglishmoviesonSundays，usedn'tthey？/didn'tthey?—Yes，theyusedto./No，theyusedn'tto.或Yes，theydid./No，theydidn't.5．usedto也可用于therebe结构，表示“过去常有”。如：ThereusedtobeameetingeveryMondaymorninglastmonth.上个月每个星期一上午总要开会。6．get/beusedto(doing)sth.习惯于(做)某事；usesth.todosth.用……做某事；beusedtodosth.被用来做某事；beusedfor(doing)sth.被用来做某事；beusedby被……所用。语法精练Ⅰ.用括号内所给单词的适当形式填空。1．Mylittlebrotherused(play)ping－pong.2．I'musedto(get)upearly.3．Woodisused(make)desks，chairs，tablesandsoon.4.you(use)tobeshort?5．Today，computers(use)inbothcitiesandtowns.Ⅱ.根据汉语提示完成句子，每空一词。6．He(以前是)ahistoryteacherinourschool.7．There(以前有)anoldtemplenearthevillage.8．She(习惯于散步)aftersupper.9．Wood(被用来制造)paper.10．Mrs.Black(已习惯于)eatingwithchopsticks.Ⅲ.按要求完成下列句子，每空一词。11．Mybrotherusedtoplayfootballafterschool.(改为一般疑问句并作否定回答)—yourbrotherfootballafterschool?—No，he．12．Tomusedtobeaquietboy.(改为否定句)Tomaquietboy.13．Thereusedtobeanoldhospitalbehindourschool.(完成反意疑问句)Thereusedtobeanoldhospitalbehindourschool，14．Iusedtoseemyauntonce__a__month．(对画线部分提问)youusetoseeyouraunt?15．Maryusedtostandatthewindowandwavegoodbye.(改为一般疑问句)Marystandatthewindowandwavegoodbye？