牛津译林版八年级英语下册Unit1 Past and present Grammar课件.pptVIP

2. 现在完成时的否定句句型 主语 + have / has + not + 过去分词 + …… e.g. I have not seen the movie yet. He hasn’t come here yet. hasn’t = has not haven’t = have not 3. 现在完成时的一般疑问句句型 Have / Has + 主语 + 过去分词 + …… Yes, 主语 + have / has. No, 主语 + have / has not. e.g. Have you finished the work? Yes, I have. / No, I haven’t. Has she arrived here? Yes, she has. / No, she hasn’t. 规则动词的过去分词的构成 大多数的动词的过去分词是规则的，只需在动词后加-ed；例如： work→worked listen→listened jump→jumped visit→visited 2.在以-e结尾的动词后只加-d；例如： close→closed like→liked agree→agreed move→moved 过去分词的构成 3.在以辅音字母加y结尾的动词，应将y改 为i再加ed；例如： study→studied carry→carried try→tried worry→worried 4.以重读闭音节结尾的动词，要双写末尾 的辅音字母再加-ed；例如： stop→stopped drop→dropped 不规则动词的过去分词的构成 有些动词的原形和过去分词相同；例如： put→put hurt→hurt become→become run→run 2.改变单词中间元音字母；例如： sit→sat win→won hold→held 3.把单词结尾的字母d改为t；例如： lend→lent spend→spent send→sent 还有些动词的过去分词是不规则的，需要特殊记忆。（课本第122-123页） 4.以eep结尾的动词，把eep改为ept；例如： keep→kept sleep→slept 5. 过去分词以aught或ought结尾；例如： teach→taught buy→bought 6.以ay结尾的动词，把ay变成aid；例如： say→said pay→paid 7.在原形词尾加n或en；例如： give→given eat→eaten Regular verbs Irregular verbs Base form Past participle Base form Past participle visit visited hit hit repair repaired put put live lived meet met move moved make made try tried sell sold study studied give given fit fitted write written plan planned think thought 现在完成时中典型的时间表达 1. borrow _______ 2. hope ______ 3. make ______ 4. get _______ 5. plan ________ 6. cry ____ 7. send _____ 8. watch _______ 9. say ______ 10. grow ______ 11. hit _____ 12. enjoy _______ Mr. Wu wants the students to practise using the present perfect tense. Help them write the past participles of the verbs below. (P 14) A borrowed hoped made got planned cried sent watched said g