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1、现在进行时一、 学习目标1. 学生能够掌握现在进行时定义、基本构成以及常见用法；2. 学生能够在语法填空和改错中熟练运用现在进行时。二、 要点梳理（一）现在进行时的定义定义：表示正在发生或进行的动作。常见的标志词：(1)时间状语 now 、at the moment (2)句前有提示词look 、listen 、look at 1. Look! A monkey is climbing the tree. 2. Listen! A boy is singing next door.3. What are you doing now?（二） 现在进行时的构成【基本构成】be + doing1.
2、Look, the boy is crying.2. What are you doing now?3. The telephone is ringing. 动词的现在分词构成规则：规 则原 形-ing 形 式一般在动词原形末尾加-ingwash catch watchwashing catching watching以不发音字母e 结尾的动词，先去掉e,再加-ingmake take ridemaking taking riding以重读闭音节（辅元辅）结尾的动词，双写末尾辅音，再加-ingsit put getsitting putting getting以ie 结尾的动词，先把ie变成y
3、 再加-inglie tie dielying tying dying写出下列动词的现在分词形式：help come swim eat give find sit write have make play see run begin dance （三）现在进行时的用法1. 表示现在（说话的瞬间）正在进行、发生的动作或者状态； -What are you doing at home now? -I am watching TV. Someone is knocking at the door. It might be the postman.2. 表示现阶段内正在进行的动作或者状态； -What
4、 is he doing in Beijing these days? -He is attending an international conference. She is working for a foreign company at present. I am teaching English in a middle school.3. 常与always, constantly连用表示某种情绪（赞美、厌恶、不满等）； He is always doing things carelessly. The man is always boasting. He is constantly h
5、elping others when they are in need.4. 表示根据计划与安排，即将进行的动作或马上要发生的事，经常与表示位移的动词(come, go, leave, start, move等)连用。 They are leaving for Paris this afternoon. I am taking my son to Beijing this week. Hurry up. The bus is coming.三、 即时应用1. Look! The boy _ (read) books.2. We _ (prepare) for a meeting to be h
6、eld on Friday.3. _ he _ (clean) the blackboard now? No, he isnt.4. Hurry up. The train _ (start).5. She _ always _ (talk) loudly in public.6. He _ always _ (do) things carelessly.7. You _ always _ (copy) others homework.8. Dont make any noise! The baby _ (sleep).9. Someone _ (knock) at the door. It might be the postman.10. Modern science and technology _ (undergo) a great revolution.参考答案：1. is reading 2. are preparing 3. Is; cleaning 4. is starting 5. is; talking 6. is; doing 7. are; copying 8. is sleep 9. is knocking 10. is undergoing学科网（北京）股份有限公司