牛津译林版八年级下册 Unit 1 past and present grammarPPT培训课件.pptVIP

Unit 1 Past and present;Learning Aims： ;Task 1: Think find out;She has changed a lot so far. ;They have been married for 2 years. ;I have changed a lot so far. ;Im an English teacher now.;I have been to Xinyang once. ;What about you ?;Unit 1;What about you ? ;She has changed a lot so far.;I have been to Xinyang once. ;Can you work out the rules?;现在完成时的构成;Task 3: 现在完成时的时间状语;Can you work out the rules?;;■ I have already watched this TV programme(节目) since two hours ago. ; ①陈述句肯定形式。 主语+ have/has+ 过去分词+其它 ②陈述句否定形式。 主语+ have/has+ not+过去分词+其它 (在助动词have/has后+not，可缩写为haven’t/hasn’t) ; ③一般疑问句形式及其答语。Have/Has+主语＋过去分词＋其它 （将助动词have/has提前，句末加问号） 肯定回答：Yes , 主语＋ have/has. 否定回答：No , 主语＋ haven’t/hasn’t. ④特殊疑问句形式。（疑问词+一般疑问句） ??特词+ have/has+主语＋过去分词＋其它？;否定句和疑问句中 yet;Task 4 :A guessing game;Why does she look so happy?;Why is Sun Yang so excited?;Why is Yao Ming so tired?;A guessing game;Has he _____computer games? (打电脑游戏);Have you _________ up the water? (喝光);Has President Obama____with President Xi yet? （谈话） Yes, he ____. / No, he ____.;规则动词： (1)、一般动词，在词尾直接加“ ed ”。 work---worked---worked, visit---visited---visited (2)、以“ e ”结尾的动词，只在词尾加“ d ”。　 live---lived---lived , (3)、以“辅音字母 + y ”结尾的动词，将 “y” 变为 “i” ，再加“ ed ”。 study---studied---studied, cry---cried---cried (4)、重读闭音节结尾，末尾只有一个辅音字母，先双写该辅音字母，再加“ ed ”。 　stop---stopped---stopped, drop---dropped--dropped ;过去分词的构成;1;; ; I______(lose) my pen just now. I______ just _____(lose)my pen . （我刚才丢了钢笔） She_____ just _____(buy) a book. She_______ (buy) a book just now. （她刚才买了本书） ;I ________ (do) my homework already. He _____________(not finished) his homework yet. ____you ever _____(be) to Beijing? They _____________(practice) this dialogue twice.;I haven’t seen the film yet.;1.Have you done your homework ______? (for, just, yet) 2.I have _______ been to Chengdu. (ever, never, yet) 3.He has _______ washed the dishes. (already, ever) 4.Have you cleaned your room _______? (for, just, yet) 5.H