初中英语九年级全册Unit4Iusedtobeafra单元同步语法精讲精练课件 人教新目标版 10页

Unit4　Iusedtobeafraidofthedark.第三课时(GrammarFocus4c)—单元同步语法精讲精练\nusedtodosth.的用法小结►定义：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。eg：Heusedtogotoschoolatsixo'clock.他过去常常六点钟去上学。\n►结构：①usedtodosth.的否定形式：❶主语＋usedn'ttodosth.❷主语＋didn'tusetodosth.eg：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＝usednot\n②usedtodo的一般疑问句形式及其答语：❶Used＋主语＋todo…？回答：Yes，sb.usedto./No，sb.usedn'tto.eg：TomusedtowatchTV.(变一般疑问句)—UsedTomtowatchTV?—Yes，heusedto./No，heusedn'tto.❷Did＋主语＋usetodo…？回答：Yes，sb.did./No，sb.didn't.eg：Iusedtodohomeworkafterschool.(变一般疑问句)—Didyouusetodohomeworkafterschool?—Yes，Idid./No，Ididn't.\n③usedtodo的反意疑问句形式也有两种，类似于否定句形式：eg：—TheyusedtoseeEnglishmoviesonSundays，usedn'tthey？/didn'tthey?—Yes，theyusedto./No，theyusedn'tto.或Yes，theydid./No，theydidn't.④usedto也可用于therebe结构，表示“过去常有”：eg：ThereusedtobeameetingeveryMondaymorninglastmonth.上个月每个星期一上午总要开会。\n【注意】有关used的其他短语get/beusedto(doing)sth.习惯于(做)某事beusedtodosth.被用于做某事beusedfor(doing)sth.用于(做)某事beusedby被……所用\n一、用括号中所给单词的适当形式填空。1．Mygrandmotherused___________(grow)flowersinthegarden.2．I'musedto___________(get)upearly.3．Woodisused____________(make)desks，chairs，tablesandsoon.4．ThetwoAfricansused______________(live)inEurope.5．Today，computers_____________(use)inbothcitiesandtowns.togrowgettingtomaketoliveareused\n二、单项选择。6．Iusedto_____newspapersandwatchTVafterdinner.ButnowI'musedto________awalk.A．read;takeB．read;takingC．reading;taking_____．reading;take7．HisgrandparentsareusedBinthemorning.A．toexerciseB．toexercisingC．exercise8．Weusedto_______intheevening，butnowweareusedto________earlyinthemorning.A．exercise;exerciseB．exercise;exercisingC．exercises;exerciseD．exercising;exerciseBDB\n三、按要求完成句子，每空一词。9．Mybrotherusedtoplayfootballafterschool.(改为一般疑问句并作否定回答)—______yourbrother___________footballafterschool?—No，he__________.10．Tomusedtobeaquietboy.(改为否定句)Tom_________________________________________aquietboy.11．Thereusedtobeanoldhospitalbehindourschool，_______________？(完成反意疑问句)Didusetoplaydidn'tdidn'tusetobe/usednottobedidn't/usedn'tthere\n12．Iusedtoseemyauntonce_a_month．(对画线部分提问)______________you____________seeyouraunt?13．她过去害怕在大众前做演讲。(翻译句子)She__________________afraidofgivingaspeechinpublic.Howoftendidusetousedtobe