學人教版選修8Unit 5 Meeting your ancestorsPeriod4GrammarPresent Perfect Continuous Tense教案設(shè)計（8頁word版）.doc

2018學年度人教版選修8period4grammarpresent perfect continuous tense教案設(shè)計teaching goals 教學目標1. target language目標語言：grammar: present perfect continuous tense2. ability goals能力目標enable the students to use the present perfect continuous tense.3. learning ability goals 學能目標help the students lean how to use the present perfect continuous tense.teaching important & difficult points教學重難點how to use the present perfect continuous tense.teaching methods教學方法explanation and practiceteaching aids教具準備a computer and a projector, a blackboardteaching procedures & ways教學過程與方法step i revision check the students homework and let one read their work.step ii lead-inask the ss to point out the sentences that contain the structure as “we have been excavating here for many years” in the text.step iii explanation一、結(jié)構(gòu)形式現(xiàn)在完成進行時是由“助動詞have(has) + been+動詞的現(xiàn)在分詞”構(gòu)成。二、基本用法1. 表示從過去某時開始一直延續(xù)到說話時還在進行，或可能還要繼續(xù)下去的動作。它通常和“for+段時間”或“since+點時間(也可以是從句)”的時間狀語連用。例如：i have been waiting for a letter from my parents.我一直在等我父母的來信。it has been raining for three hours.雨已經(jīng)下了三個小時了。we have been studying here since 2004. 自從2004年以來，我們一直在這里學習。2. 表示從過去某時開始，一直延續(xù)到說話時刻，可能剛剛結(jié)束的動作。例如：she has been sweeping the street all day. she is too tired. 她一整天都在掃大街。她太累了。we have been waiting for you for two hours. we dont want to wait any longer. 我們已經(jīng)等你兩個小時了。不想再等了。三、常用句型1. 肯定句：“主語+have(has) been+動詞的現(xiàn)在分詞+其他.”例如：i have been sitting here all the afternoon. 我在這兒坐了一下午。he has been collecting all kinds of stamps since he was ten years old. 自十歲起他就開始收集各式各樣的郵票。2. 否定句：“主語+have(has) not been+動詞的現(xiàn)在分詞+其他.”例如：they havent been meeting each other for five years. 他們有五年沒見面了。he hasnt been teaching here these years. 這些年他并沒有一直在這兒教書。3. 一般疑問句：“have(has) + 主語 + been + 動詞的現(xiàn)在分詞？”其肯定回答：“yes, 主語 + have(has).”否定回答：“no, 主語 + havent (hasnt).” 【例如】： have you been studying for the english test today? 你今天一直在準備英語測試嗎？ yes, i have. / no, i havent. 是的。 / 不，我沒有。 has daniel been skating for two years? 丹尼爾滑冰已經(jīng)有兩年了嗎？ yes, he has. / no, he hasnt. 是的。/ 不，他沒有。4. 特殊疑問句：“ 特殊疑問詞 + 一般疑問句？”【例如】：what book have you been reading recently? 最近你在看什么書？how has your uncle been getting on with his work?你叔叔的工作進展得怎么樣？四、注意事項有些不能用現(xiàn)在進行時的動詞，如be, have, like, love, know, see, hear等，同樣也不能用現(xiàn)在完成進行時，而應(yīng)用現(xiàn)在完成時。例如：the poor woman has been ill for a long time. 那可憐的婦人已經(jīng)病了好久了。have you seen her parents these days?這些天你看見她的父母了嗎？時態(tài)對比1. 現(xiàn)在完成進行時與現(xiàn)在進行時比較：現(xiàn)在完成進行時強調(diào)某一動作從過去一直延續(xù)到現(xiàn)在；而現(xiàn)在進行時只指目前正在發(fā)生的動作。試比較：susan has been reading that storybook since last night. 從昨晚開始蘇珊就一直在看那本故事書。susan is reading a storybook now. 蘇珊正在看一本故事書。2. 現(xiàn)在完成進行時和現(xiàn)在完成時比較：有些動詞(如：work, study, live, teach等)用現(xiàn)在完成進行時與現(xiàn)在完成時表達的意思差不多。試比較：the teacher has been teaching at this school for ten years. 十年來，那位老師一直在這所學校教書。the teacher has taught at this school for ten years. 那位老師在這所學校已經(jīng)教了十年書了。英語中的多數(shù)動詞在這兩種時態(tài)中表示不同的含義?，F(xiàn)在完成時如果不帶表示一段時間的狀語，就只能表示動作的完成，而現(xiàn)在完成進行時則表示動作的延續(xù)。試比較：they have built a new lab. 他們建造了一幢新的實驗室。(表示動作的完成)they have been building a new lab (these years). 他們(這幾年)一直在建造一幢新的實驗室。(無論用時間狀語還是不用時間狀語，都表示動作的延續(xù))step iv practice （using structures in workbook）一、單項選擇。1. how long have you been here?a. stoodb. to standc. standingd. stands2. the student has been the novel since he finished school.a. wroteb. writingc. written d. writes3. hi, david! are you tired? yes, i am tired. i the classrooms for 4 hours.a. am cleaningb. was cleaningc. have been cleaningd. had cleaned4. where have you been? we you everywhere.a. have been looking forb. has looked forc. had looked ford. has been looking for5. it for nearly a week. will it last long? no, its reported that well have a fine weekend.a. have rained b. has been rainingc. rains d. rained二、句型轉(zhuǎn)換。1. he has been watching the interesting play for two hours. (改為否定句)he watching the interesting play for two hours.2. i have been learning english for two years. (改為一般疑問句并作否定回答) you learning english for two years? no, i .3. my brother has been collecting stamps for five years. (對劃線部分提問) has your brother been for five years?4. the boy has been listening to the music videos since he was eight years old. (對劃線部分提問) h