JNCE3A-第2单元完整-just-like-your-mother-新概念英语3a.ppt

I have eaten my lunch. She has eaten her lunch. He has eaten his lunch. 肯定句 They have eaten their lunch. I have not (haven’t) seen the film. She has not (hasn’t) seen the film. 现在完成时的否定形式: have not (haven’t) +过去分词 has not (hasn’t) +过去分词 I haven’t eaten supper. eat-eaten He hasn’t changed his idea. change-changed My mother hasn’t come back home. come-come 否定句 I’ve already had dinner. I ________ ________ dinner ________. 2. He has just finished his homework. He ________ ________ his homework _________. 3. Mum’s cooked the dinner. Mum _______ ________ the dinner. 4. Susan’s learned English at school. Susan ________ ________ English at school. haven’t had yet hasn’t finished yet hasn’t cooked hasn’t learned 把下列句子改为否定句 Have you eaten your breakfast? 现在完成时的一般疑问句形式 Have/has 提前+过去分词 Have you known Sandy for a long time? Yes, I have/ No, I haven’t. know-known Has she eaten anything since 9:00 a.m. Yes, she has/ No, she hasn’t. eat-eaten 疑问句 I’ve already had dinner. 2. He has just finished his homework. 3. Mum’s cooked the dinner. 4. Susan’s learned English at school. Have you already had dinner? Has he just finished his homework? Has mum cooked the dinner? Has Susan learned English at school? 把下列句子改为一般疑问句 分清与一般过去时的用法 现在完成时属于现在时态的范围,不能和表示过去的时间状语连用,如yesterday,last night,three weeks ago,in1990等.而一般过去时只表示过去的动作或状态,和现在不发生关系。 eg--- I have seen the film. eg--- I saw the film last week. eg--- He has lived here since 1993. eg---- He lived here in 1993. Notes: 1) have gone to 与have been to have gone to表示某人已离开了原地,去了另外某地,说话时,人已不在原地。后者表示某人曾 have been to去过某地,说话时人已不在某地了。 He has been to Xi‘an twice. 他曾经去过西安两次。（已经回来了） You can’t find him. He has gone to Xian. 你找不到他。他去西安了。（没回来） 动词填空: 1._____ you ________(clean) the room? Yes, we__________(do) that already. When _______ you ______(do) it? We _______(do) it an hour ago. 2.______ he ______(see) this film yet? Yes. When _____ he _