现在完成时学习课件.ppt

He has lived in Beijing since 1999. 自1999年以来他一直住在北京。 （说明他现在仍然在北京。） He lived in Bejing in 1999. 在1999年的时候他在北京住过。 （现在是否住在北京不知道） 用动词的适当形式填空（注意时态） 1.--______ you _________your pen? (mend) --Yes, I _______. --When_______ you _______ it? --I __________ it yesterday. 2.--How do you like the film? --I ____________(not see) such a moving film before. 3.Millie’s sister _______(join) the club last week. So she _________(be) in the club for nearly one week. Have mended have did mend mended haven’t seen joined has been 不规则动词的过去式以及过去分词巧记规律 AAA: put– put –put let—let –let ABA: become—became—become ABB: stand—stood—stood ABC: eat— ate—eaten AAA cost-cost-cost read-read-read put-put-put cut-cut-cut let-let-let set-set-set beat-beat-beat hit-hit-hit hurt-hurt-hurt spit-spit-spit 一、原形、过去式和过去分词的词形和读音都相同的单词，结尾字母一般是t或d。 特殊：动词read的过去式和过去分词虽然词形与原形一致，read-read-read，但发音分别是[ri:d]-[red]-[red]。 有些动词的过去分词与原形是一样的: run-ran-run come-came-come become-became-become overcome-overcame-overcome ABA 原型 过去式 过去分词 例词 -eep -ept -ept keep,sweep,sleep -ell -old -old sell,tell -d -t -t lend,spend,send,build -ay -aid -aid say,pay,lay -n -nt -nt burn,learn,mean -ee- -e- -e- meet,feed -ought -ought bring,buy,fight,think -aught -aught catch,teach ABB(含规则动词) 1.另有一些其它形式的变化。 have (has)-had-had leave-left-left lose-lost-lost make-made-made feel-felt-felt spell-spelt-spelt stand-stood-stood 2. 改变单词中间元音字母。 sit-sat-sat (babysit) win-won-won shine-shone-shone hold-held-held find-found-found hear-heard-heard hang-hung (hanged)-hung (hanged) ABB(含规则动词) ABC 原型 过去式 过去分词 例词 -eak -oke -oken break,speak -eal -ole -olen steal -ear -o