【正文】 ling ___ on this essay for twenty minutes but she has written only about a hundred be working been working have worked , Tracy, you look ’m ___ the living room all painted been painting painted , Joan, I have seen you for ___ recently?Carrying on some research on you been doing you done you doing you do must be tired now since you ___ for five been worked been working work ____ me waiting for two ____ for you since …waited kept…waited …h(huán)ave waited kept…h(huán)ave waited ______ John _______ ? To the _________ there for an …been…h(huán)as gone …gone…h(huán)as been …go…went …be…went the baby still _____ ? No, it _______ …cried…h(huán)as stopped …crying…stopped …cry…stopped …crying…h(huán)as stopped _______ the ________ here for quite many …h(huán)ave lived …live …h(huán)ave lived …live you ever _____ America ? Yes, I …gone to …gone in …been to …been in brother ____college for over three gone to been to been in been at ________ the Army by the end of ______ in the army since …is joined…h(huán)as been joined…is joined …h(huán)as been the time I _____ back they ____ up ten …h(huán)ave sent …h(huán)ad sent …h(huán)ave sent e…sentAnswers: 1).istalkstalkingis talking readingreads are playingIsplayingis playing workworks isn’t workingis staying closedosesis closing carrying having Ask getting 2). amn’t變?yōu)镮39。 has been in Ireland has been in Irelandthree aunt has lived in Australia is in her has been there o39。s out, I39。s Tony?Mary： He39。t they? WheretheySue： To Florida, ： How many timestheythere?Sue： This is their third ： Can I have an apple, please?Mary： We haven39。s Restaurant last ： No, it wasn39。t e to school because he39。s (be)a small town hundreds of years it(work)here since I(move)here in far I(make)quite a few friends .— How longthe Wangs(stay)here ?— For two 。already(see)the (see)it last .—he(finish)his work today?— Not .—you(be)to Hong Kong?— Yes, I(be)there .—you ever(eat)chocolate sundaes（圣代）?— No, fatherjust(e)back from is tired .— Where39。s late weather(get)warmer and your mother often cook supper? doesn39。 Guo(teach)us Chinese this (be)a very good often(talk)with us after of us like(talk)with , she(talk)with Lily !Who(read)English? Han Meimei often(read)English in the (be)Tom and Jim? They(play)(play)footballs too? No, he(mend)his their father(work)? He(work)on a now lie(not work).He(stay)at time the shop(close)? It(close)at nine o39。如：They’ve known each other since 。The students have prepared for the exam.（已經(jīng)結(jié)束）學(xué)生們?yōu)榭荚囎髁藴?zhǔn)備。而現(xiàn)在完成時則表示動作在過去已結(jié)束。試比較： We’ve been living here for ten ’ve lived here for ten 。We’ve been seeing quite a lot of each other 。They’ve been building a ship.（在進行）他們一直在造一艘船。She has always been working like 。I’ve read this ?，F(xiàn)在完成進行時是由“have/has+been+動詞的現(xiàn)在分詞”構(gòu)成 ：1）在強調(diào)指出動作還未結(jié)束，還要繼續(xù)下去。He has read this book 。如： Tom has had a toothache all haven’t heard from him recently.(3)現(xiàn)在完成時也可表示從過去到現(xiàn)在曾經(jīng)經(jīng)歷過或做過的事情，常和often, ever, never, before, once, ?times等時間狀語連用。如：2）.現(xiàn)在完成時也可表示從過去某時開始的動作，狀態(tài)一直持續(xù)到現(xiàn)在，常和for, since引導(dǎo)的時間狀語連用。yet常用于否定句和疑問句，常用于句末。I’ve just finished reading the 。Listen!Someone is singing an English song in the ！有人在教室里唱英文歌現(xiàn)在完成時現(xiàn)在完成時表示過去發(fā)生的動作造成目前的結(jié)果和對現(xiàn)在造成的影響或表示從過去延續(xù)至今的動作、狀態(tài)和習(xí)慣等 現(xiàn)在完成時是由“助動詞have/has+過去分詞”構(gòu)成的 1）.現(xiàn)在完成時可表示過去發(fā)生的動作對現(xiàn)在所產(chǎn)生的影響，后面通常不用時間狀語，但句中常出現(xiàn)already, just, yet等副詞。句首有 Look!/ Listen!等提示語時，后面的句子也要用現(xiàn)在進行時。）三、時間狀語一般現(xiàn)在時常與often, sometimes, always, usually等頻度副詞和every morning / day / week, on Wednesday, on Sundays，in the morning / afternoon / evening等時間狀語連用。t.)是的，他們正在踢。（不，他們不經(jīng)常踢?！狣o they often play football? 他們經(jīng)常踢足球嗎？—Yes, they do.(No, they don39。She isn39。如：She doesn39。而現(xiàn)在進行時的句子變否定句則直接在be(am, is, are)后面加 not?，F(xiàn)在進行時謂語動詞的形式為：be(am, is, are)+ 實義動詞的ing 形式。（正在進行的動作）We are working on the farm these 。（經(jīng)常性的動作）He can speak a little ?，F(xiàn)在進行時則一般用來表示現(xiàn)在(說話的瞬間)正在發(fā)生或進行的動作或者用來表示現(xiàn)階段正在進行或發(fā)生的動作。我們可以從以下三個方面進行對比：一、基本用法；二、謂語動詞的形式；三、時間狀語。例如：You are always changing your 。s getting warmer and 。例如：The leaves are turning 。（說話時并未在寫，只處于寫作的狀態(tài)。2）.習(xí)慣進行：表示長期的或重復(fù)性的動作，說話時動作未必正在進行?，F(xiàn)在進行時是be + 現(xiàn)在分詞構(gòu)成：現(xiàn)在分詞的構(gòu)成，是在動詞原形上加ing, 但是應(yīng)該注意：動詞以單個e 結(jié)尾 去掉e, 加 ing Love→loving Argue→arguing 動詞以 —ee結(jié)尾 直接加 ing Agree→agreeing See→seeing 動詞為單音節(jié)：以單一元音字母 + 單一輔音字母結(jié)尾 輔音字母雙寫，再加 ingHit→ hitting Run→running Stop →stopping 動詞為雙音節(jié)或者多音節(jié)：最后一個音節(jié)為重讀音節(jié)，以單一元音字母 + 單一輔音字母結(jié)尾 輔音字母雙寫，再加 ing Begin→beginning 以 y 結(jié)尾的動詞 直接加 ing Carry→carrying Enjoy→enjoying ：1）.表示現(xiàn)在（指說話人說話時）正在發(fā)生的事情。第二句中的now是進行時的標(biāo)志，表示正在進行的動作的客觀狀況，所以后句用一般現(xiàn)在時。I am doing my homework 。Ann writes good English but does not speak ，講的可不行。例如：I don39。例：Columbus proved that the earth is 。例如：Pride goes before a 。Shanghai lies in the east of 。2）客觀真理，客觀存在，科學(xué)事實。時間狀語： every?, sometimes, at?, on Sunday。2胸卡未佩戴者，班主任發(fā)現(xiàn)一次1元，年級組一次5元，學(xué)校發(fā)現(xiàn)一次10元。2對罰款未及時上交者，翻倍處理。在學(xué)校舉辦的活動中獲得榮譽者獎德育積分2分。1不允許或口頭請假，凡違反者一律視為曠課。扣除德育積分2分。1凡頂撞老師一次者，罰款10元，并根據(jù)情節(jié)另行處理。1凡抽煙喝酒一次者，罰款5元并打掃衛(wèi)生一周。1凡在校期間談情說愛，立即通知雙方家長來校協(xié)商處理此事。不允許在教室大聲喧嘩、起哄、打口哨，違者罰打掃衛(wèi)生一周。衛(wèi)生一次打掃不徹底者，罰打掃衛(wèi)生一周。宿舍被學(xué)校通報批評一次，罰款10元，下次再被批評通報，罰款20元，依次類推。早退一次，罰款2元，并扣德育積分2分，罰打掃衛(wèi)生一周。曠課一節(jié)5元，累計曠課20節(jié)，自動退學(xué)。a．增加水蒸氣 b．降低溫度 c．使用催化劑 d．增加氫氣濃度薦上教版九年級化學(xué)教案全套薦人教版初中化學(xué)教案(很實用)薦化學(xué)教學(xué)設(shè)計范例薦中學(xué)化學(xué)教學(xué)設(shè)計、案例與反思(3000字)薦初三化學(xué)教案第三篇：正寧三中高二正寧三中高二（10）班班級管理制度為了切實搞好學(xué)習(xí)，加強班級管理，促進班級學(xué)風(fēng)，構(gòu)建和諧班級，創(chuàng)造良好的學(xué)習(xí)氛圍特定本制度。①表中3min—4min之間反應(yīng)處于_________狀態(tài)； mol／L(填大于、小于或等于)。（2）在一體積為10L的容器中，通人一定量的CO和H2O，在850℃時發(fā)生如下反應(yīng)： CO(g)十H2O(g)CO2(g)十H2(g)十Q(Q＞0)CO和H2O濃度變化如下圖，則 0—4min的平均反應(yīng)速率v(CO)＝______ mol／(L(5)若將題中―保持體積和溫度不變‖改為―保持壓強和溫度不變‖，則C的體積分數(shù)為ω的是___________。(3)若發(fā)生的反應(yīng)為2A(s)＋B(g)＝3C(g)＋D(g)，即A的狀態(tài)，由氣態(tài)改為固態(tài)，其他條件不變，則C的體積分數(shù)為ω的是________________。若保持容器體積和溫度不變，以下配比作為起始物質(zhì)：① 4mol A＋2mol B ② 2mol A＋1mol B＋3mol C＋1mol D ③ 3mol C＋1mol D ④ 1mol A＋ B＋ C＋ D ⑤ 3mol A＋1mol B(1)達平衡后，C的體積分數(shù)仍為ω的是________________。A、②③⑤ B、①④⑦ C、②⑦⑨