过去进行时讲解与习题1.概念过去进行时是表示过去某一时刻或某一时间正在进行或发生的动作,可以从两个方面来理解：1 过去某一时刻正在进行或发生的动作。

如： They were playing football at ten o’clock yesterday morning.My mother was cooking when I got home.I was washing my clothes at this time yesterday.2 过去某阶段持续进行的动作。

如：I was staying at home last weekend.常与过去某一特定的时间状语连用，如last night, at that time, at 8:00yesterday, last Sunday , at this time yesterday, from 7 to 9 last night等。

也有时没有时间状语，要通过上下文的暗示来确定用过去进行时。

E.g. The students all worked hard. Everyone knew what he was working for.另外，也可用于when/while引导的时间状语从句中。

但在复合句中，若主要动作和背景动作是同时发生的，那么主从句都可用过去进行时。

如：It was raining when they left the hospital.Jenny was reading while Danny was writing.2.句型结构⑴肯定句：主语 + was/were + 动词现在分词(doing) + 其他.如：I was playing basketball at 6:30 yesterday.He was playing the piano at that moment.They were doing homework at 8:00 last night⑵否定句：主语 + was/were + not + 动词现在分词（doing） + 其他如： I was not playing basketball at 6:30 yesterday.He wasn’t playing the piano at that moment.They weren’t doing homework at 8:00 last night.⑶一般疑问句： Was/Were + 主语 + 动词现在分词(doing) + 其他？如： Were you playing basketball at 6:30 yestetday?---Yes, I was./No, I wasn’t.Was he playing the piano at that moment?---Yes, he was./No, he wasn’t.⑷特殊疑问句：特殊疑问词 + 一般疑问句？如： What were you doing at 8:00pm yesterday?Where was he working at that time?注：其句式变化仍然要在be上做文章练习㈠用所给动词的正确形式填空。

1.Jim _____(write) a letter at that moment.2.When the telephone_______(ring),she ______(do) her homework.3.When I ______(leave) the part,the people ______(enjoy) themselves.4.______ they______ (feed) the animals at 5:00 yesterday afternoon?5. Mrs.Green _____ _____ (not wash) clothes at this time yesterday.6. Grandpa ______ ______ (mend) his clock when I reached home.7.As I _____ (walk) in the park, I saw some children playing games.㈡、单选1 What ______ from three to four yesterday afternoon?A have you doneB had you doneC did you doD were you doing2 – I call you yesterday evening, but there was no answer.- Oh., I’m sorry I _____ dinner at my friend’s home.A homeB hadC was havingD have had3 My mother _____ while my father_____TV.A cooked; was watchingB was cooking; was watchingC was cooked; watchedD cooked; watched4 When I got home, my son _____ the music.A am listening toB listenedto C was listening to D was listening5 We heard a cry when we ______ TV last night.A were watchingB would watchC watchD watched6 Could you tell me when ______?A she is comingB she was comingC will be comeD is he coming7 The teacher ______ when I came into the classroom.A is drawingB drawsC has drawnD was drawing8 Nobody noticed what she ______ at the moment.A will doB was doingC has doneD had done9 Was it raining hard when you _____ this morning?A leftB leavesC was leavingD would leave现在完成时讲解与习题1.概念⑴表示过去发生的动作对现在的影响和结果依然存在（已完成）。

常与副词already（肯定）,yet（否定，疑问）,just,ever,never,once,twice,befoe等连用。

如： We have already known each other.I have just washed my face.He has been to this island before.⑵也表示过去发生的动作或状态一直持续到现在，且有可能继续下去（未完成）。

常与for（+时间段）,since（+时间点或过去时的句子）,so far等表示一段时间的状语连用。

如：如： We have lived there since 2000.Mr.zhang has been in Beijing for over thirty years.He has learned English since he was 6 years old.注：这种用法中的动词用延续性动词。

非延续性动词要用延续性动词代替。

常见非延续性动词与延续性动词的转换：buy—have borrow—keep come—be hereleave/go—be away begin/start—be on die—be dead join—be in如：I have kept(borrow) the book for two weeks.She has had(buy) this bike for a year.The old man has been dead(die) since last year.They have been away(leave) for two hours.2.句型结构⑴肯定句：主语 + have/has + 动词过去分词 + 其他。

(主语是第三人称单数时用has，其他人称用have)。

如：I have done my homework since6:00.They have found the lost boy.She has gone to Beijing since she was 16 years old.⑵否定句：主语 + have/has + not + 动词过去分词 + 其他。

如： They have worked for 20 hours.→They haven’t worded for 20 hours.He has had hisbreakfast.→He hasn’t had his breakfast.⑶一般疑问句： Have/Has + 主语 + 动词过去分词 + 其他？如：She has been to Beijing.→H as she been to Beijing?---Yes,she has./No,she hasn’t.They have already learned threeEnglish songs.→Have theylearned three English songsyet?---Yes,they have./No,they haven’t.⑷特殊疑问句：特殊疑问词 + 一般疑问句？如: How many words has he learnedyet?How long hawe you lived here?注：have/has been to 表示“去过某地”（已回来）.瞬间动词形式have/has gone to 表示“去某地了”（还未回来）人不在说话处，主语常用第三人称。

Have/has been in 表示“已经。

”（持续的）.持续性动词形式3.过去分词变化规则⑴规则动词过去分词同过去式。

⑵不规则动词需要记忆。

① AAA型1) cost—cost—cost 2) cut—cut—cut 3) hit—hit—hit4) hurt—hurt—hurt 5) let—let—let 6) put—put—put7) read—read—read 8) set—set—set 9) shut—shut—shut②AAB型1) beat—beat—beaten③ ABA型1) become—became—become 2) come—came—come 3) run—ran—run④ABB型1) bring—brought—brought 2) buy—bought—bought 3) think—thought—thought4) catch—caught—caught 5) teach—taught—taught 6) build—built—built7) lend—lent—lent 8) send—sent—sent 9) spend—spent—spent10) lose—lost—lost 11) smell—smelt—smelt 12) burn—burnt—burnt13) feel—felt—felt 14) learn—learnt—learnt 15) hear—heard—heard16) mean—meant—meant 17) keep—kept—kept 18) sleep—slept—slept19) sweep—swept—swept 20) tell—told—told 21) stand—stood—stood22) understand—understood—understood 23) say—said—said24) pay—paid—paid 25) meet—met—met 26) leave—left—left27) hold—held—held 28) dig—dug—dug 29) find—found—found30) get—got—got31) hang—hung—hung 32) have—had—had33) make—made—made 34) shine—shone—shone 35) sit—sat—sat36) win—won—won⑤ABC型1) blow—blew—blown 2) draw—drew—drawn 3)fly—flew—flown4) grow—grew—grown 5) throw—threw—thrown 6) know—knew—known7) choose—chose—chosen 8) eat—ate—eaten 9)fall—fell—fallen10) ride—rode—ridden 11) rise—rose—risen 12) hide—hid—hidden13) see—saw—seen 14) shake—shook—shaken 15) take—took—taken16) mistake—mistook—mistaken17) wake—woke—waken18) write—wrote—written 19) be—was/were—been 20) do—did—done21) break—broke—broken 22) forget—forgot—forgotten 23) give—gave—given24) freeze—froze—frozen 25) begin—began—begun 26) ring—rang—rung27) drink—drank—drunk 28) go—went—gone 29) lie—lay—lain30) sing—sang—sung 31) swim—swam—swum 32) wear—wore—worn33) show—showed—shown 34) sink—sank—sunk练习：A．用所给词的适当形式填空。