初一現(xiàn)在進行時講解

現(xiàn)在進行時講解現(xiàn)在進行時：一、現(xiàn)在進行時的構(gòu)成：主語+be動詞（am /is /are）+v（動詞）+ing形式注意：這里的-ing形式叫做現(xiàn)在分詞二、現(xiàn)在進行時句型變化：1、 肯定式：be(am, is, are)+ V-ing(現(xiàn)在分詞) 如：They are having an English class. 他們在上英語課。2、 否定式：be(am, is, are) + not + V-ing(現(xiàn)在分詞) 如：They arent having an English class. 他們不在上英語課。3、 疑問式：將be的具體形式(即am, is或are)提前到句首。如：Are they having an English class? 他們在上英語課嗎?4、特殊疑問句式： 特殊疑問句結(jié)構(gòu)：特殊疑問詞一般疑問句？ 現(xiàn)在進行時的特殊疑問句結(jié)構(gòu)：特殊疑問詞+be(am/is/are)+主語+doing（+其他成分）？eg:1、Whatareyoudoing?你們正在干什么？ Weareplaying.2、Whatistheoldmandoingunderthetree? 那棵樹下的老人在干什么？ Theoldman/Heisreadingabook.3、Whereistheboyswimming?那個男孩正在那里游泳？ Theboy/Heisswimmingintheriver.注1：is not可以縮寫成isnt，are not可以縮寫成arent，但是am not在現(xiàn)代英語中不可以縮寫。 注2：1、be動詞在現(xiàn)在進行時里算作“助動詞”，翻譯現(xiàn)在進行時的時候，be不能解釋為“是”，否則不通順。它只是和現(xiàn)在分詞搭配構(gòu)成“進行時”。 2、變一般疑問句時，形成“一問一答”的關系，要注意第一人稱和第二人稱相互交換。 3、簡略回答時，所有稱呼要簡化為人稱代詞：I，we，you，he，she，it，they。三、現(xiàn)在進行時的應用（1）現(xiàn)在進行時主要表示說話人的說話時刻正在進行的動作。Be quiet! The baby is sleeping. 安靜，孩子在睡覺。He is teaching in a middle school. 他在一所中學教書。 (目前階段在進行的動作)（2）當句子中有now時，經(jīng)常表示動作正在進行，這時要用現(xiàn)在進行時。如： They are playing basketball now. 現(xiàn)在他們正在打籃球。（3）以look，listen開頭的句子，提示我們動作正進行，這時要用現(xiàn)在進行時。 Listen！SheissinginganEnglishsong. 聽，她正在唱英語歌。（4）表示當前一段時間或現(xiàn)階段正在進行的動作，且此時有this week，these days等時間狀語，這時常用現(xiàn)在進行時。如： We are making building these days. 這些天我們在做飛機模型。（5）描述圖片中的人物的動作，也為了表達更生動。此時也常用現(xiàn)在進行時。 Look at the picture. The children are flying kites.看這幅圖，那些孩子正在放風箏。（6）現(xiàn)在進行時表將來,主要表示按計劃或安排要發(fā)生的動作：某些詞，如come， go， leave， arrive， start， get， stay ，live, fly等的一般現(xiàn)在時也可表示將來.例如：Im leaving tomorrow. 我明天走。Theyre getting married next month. 他們下個月結(jié)婚。Im not going out this evening. 今晚我不準備出去。What time does the train leave? 火車什么時候開?四、動詞變現(xiàn)在分詞的規(guī)則情況變法例詞一般情況直接加-ingplayplaying，walk-walking以不發(fā)音的字母e結(jié)尾的動詞去e加-ingcome-coming,have-havingmake-making, ride-ridingwrite-writing，take-taking以重讀閉音節(jié)結(jié)尾，且末尾三個字母為“輔+元+輔”結(jié)構(gòu)的動詞將末尾輔音雙寫，再加-ingputputting，drop-dropping,swimswimming， stopstoppingcutcutting，beginbeginningrun-running以ie結(jié)尾的動詞改ie為y，再加-inglielying,diedying,tietying.五、現(xiàn)在進行時與一般現(xiàn)在時的區(qū)別(1) 現(xiàn)在進行時強調(diào)目前正在進行的動作，而一般現(xiàn)在時強調(diào)經(jīng)常性或習慣性的動作。如：Im reading a story now. 我在看一個故事。(目前正在干的事情)I read stories in my spare time. 我有空時看故事。(經(jīng)常性的行為)(2) 現(xiàn)在進行時強調(diào)現(xiàn)階段一直在進行的動作，而一般現(xiàn)在時只表動作的重復，而不表示動作的持續(xù)。如：What are you doing these days? 這幾天你在干什么?They are learning English in the summer holiday. 他們暑假在學英語。They read English every day. 他們每天讀英語。They play volleyball every Sunday. 他們每周星期天都打排球。(3) 表示短促動作的動詞(如 jump, knock, beat, pick, skip等)的進行時，表示動作的重復。如：The girls are jumping over there. 女孩子們在那邊跳。His heart is beating fast. 他的心臟跳得很快?，F(xiàn)在進行時練習：一、寫出下列動詞的現(xiàn)在分詞形式work_sing_lie_study_have_dance_shop_take_run_sit_write_swim_二、用動詞的正確時態(tài)填空1）I_(talk).You_(listen)tomenow.2）Look, theboy_(run)fast.3）-Whatareyoudoing?-I_(do)myhomework.4）-_thestudents_(read)English?-Yes, theyare.5）Tom_(notstudy) English. HeisstudyingChinese.6）-Who_(sing)asong?-LiYingis.7）Thegirl_(noteat)bananasnow.Polly_ (noteat)abanananow.8）-Where _ they_(stand)?-Theyarestandingoverthere.9）Look！Theboyoverthere_(play)amodelplane.10）-WhatisMeimeidoingnow?-She_(watch)TVwithherparents11）He_(study)Englishveryhard.三、按要求改寫句子1.Theboyisplayingbasketball.否定句：_一般疑問句：_肯定回答：_否定回答：_對“isplayingbasketball”提問：_2.Theyaresingingintheclassroom.否定句：_一般疑問句：_肯定回答：_否定回答：_四、1. Who _ over there now?A. singing B. are sing C. is singing D. sing2. Its eight oclock. The students _ an English class.A. have B. having C. is having D. are having3. Listen! The baby _ in the next room.A. crying B. cried C. is crying D. cries4. Look! The twins _ new sweaters.A. are wearing B. wearing C. are wear D. is wearing5. Dont talk here. Grandparents _.A. is sleeping B. are sleeping C. sleeping D. sleep6. Tom is a worker. He _ in a factory. His sisters _ in a hospital.A. work / work B. works / work C. work / works D. works/works7. Who _ English best in your class?A. speak B. speaks C. speaking D. is speak8. Mrs Read _ the windows every day.A. is cleaning B. clean C. cleans D. is clean9. We _ music and often _ to music.A. like/ listen B. likes/ listensC. like/ are listening D. are listening/ like10. She _ up at six in the morning.A. get B. gets C. getting D. is getting11. On Sunday he sometimes _ his clothes and sometimes _ some shopping.A. wash/ do B. is washing/ is doingC. washes/ does D. wash / does12. The twins usually _ milk and bread for breakfast, but Jim _ some coffee for it.A. have/ have B. have/ has C. has/ have D. have / haves五、根據(jù)中文意思完成句子1、學生們在干什么?有一些在打電話，另一些躺在教室里。_ _ the students _? Some _ _ on the phone, _ _ _ in the classroom.2、“格林先生在看電視嗎?” “不， 他在打掃房間?！薄癬 Mr Green _ TV?” “_, He _ _ the house.3、魏芳不是在讀書，她在寫信。Wei Fang _ _ a book. She _ _ a letter.4、今天天氣怎么樣?_ is the weather today