1、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 notIs - w
2、as wasnt =was notAre - 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-
3、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
4、 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-too
5、k （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,However, there are some exceptions:,Some verbs have the same present form and past form.,Some verbs are irregular and we have to be careful!,Sometimes the past for
6、m of a verb istotally different from its present form:,Practice,ate,went,did,had,met,made,give,rode,saw,take,came,had,fed,found,was,ate,came,swam,caught,Hint words:,When we see the following words, we have to use the past tense.,Practice,1 He _ (go) to school by bus yesterday.2 Grandma _ (have) lunc
7、h with her friends last night.3 I _ (meet) some friends last week.4 We _ (eat) fast food last Sunday.,went,had,met,ate,Practice,I went to the beach.,They _ a picnic.,had,I _ dim sum at a restaurant.,What did you do yesterday?,eat dim sum,ate,I _ the newspaper.,read,She _.,went shopping,I _.,made the bed,We _.,What did you do last summer?,swim in the swimming pool,swam in the swimming pool,
