北师大版(三年级起点)六年级下册unit 7 vacation lesson 5 课件.pptVIP

动词过去式变化规则 Unit 7 Vacation Lesson 5 Get It Right Today is Monday. What did the children do on Sunday? They rode a bike on Sunday. They swam in the sea on Sunday. They went to the cinema on Sunday. They had a picnic. They went hiking. They met friends. They ate dim sum. Be Am ---was wasnt =was not Is --- was wasnt =was not Are --- Were werent =were not I was eight last year. 名词 I was happy yesterday. 形容词 I was at home last night. 介词短语 Regular verbs （规则动词）vsIrregular verbs（不规则动词） More about the past tense Regular verbs 直接加ed. Play---played (玩） cook---cooked （做饭）wash---washed(洗） 改y 为I 加ed. Try---tried （尝试） study--- studied （学习） 以e 结尾直接加d arrive---arrived （到达） dance---danced .（跳舞） 一个元音加一个辅音重读双写加ed shop---shopped （购物） plan--- planned.（计划） Irregular verbs 不变：let ---let（让） put---put（放） cut---cut ( 剪切） D变t : lend--- lent ( 借出） send---sent ( 发送） spend---spent(度过） build---built ( 建造） I 变o : drive---drove ( 开车） write--- wrote (写）ride--- rode (骑车） I 变a : begin---began ( 开始） drink---drank （ 喝水） swim ---swam (游泳） sing---sang (唱歌） 变aught . Teach---taught （ 教书）catch---caught (抓住） 变ought buy---bought (买） bring---brought （带来） Irregular verbs do --- did （做） eat---eat （吃） go---went （去） have---had （有） Meet---met （见到） run---ran （跑） give---gave （给） come---came （来） find---found （找到） take---took （拿） drink---drank （喝水） see---saw （看见） If a verb ends with the letter y, we have to change it into ied in its past form. cry try carry tidy cried tried carried tidied However, there are some exceptions: play stay played stayed Some verbs have the same present form and past form. cut put read cut put read Some verbs are irregular and we have to be careful! go eat find Sometimes the past form of a verb is totally different from its present form: went ate found Practice Present form Past form eat go do have meet ate went did had met Present form Past form make gave ride see took come made give rode saw t