电大英语I七讲课件.pptxVIP

电 大 英 语(I) (第 七 讲) UNIT TEN UNIT ELEVEN I. Grammatical Structures; II. New Words and Expressions; III. Language Points and Difficult Sentences; XI. Functional Practice; UNIT TEN V. Some Exercises. 2 一般过去时 ( The Past Simple Tense ) 倒装句 ( So + be / do + 主语 ) 3 用法：表示在过去某个时间发生的动作或存在的状态，也表示 过去经常或反复发生的动作。常与yesterday, last year, in 1965, a moment ago等表示过去的时间状语连用。 e.g. I got up atfive yesterday, but I didn’t get up so early this morning. Did he watch TV last night? I was in Grade One last year. 构成：动词用 过去式 否定、疑问句的构成： 若句中有 be动词或情态动词，则在其后加 not 或将其调至主语 前。若句中只有行为动词，则要用助动词 did 来帮忙。 4 一般过去时 1、一般情况下，加 -ed。 ask -- asked help -- helped watch -- watched 2、结尾是“e”的词，加 -d。 dance -- danced love -- loved live -- lived 3、重读闭音节词，且末尾只有一个辅音字母的，先双写 这个辅音字母，再加 -ed。 stop -- stopped drop -- dropped beg -- begged 4、以辅音字母加 y 结尾的词，改y 为 i，再加 -ed。 carry -- carried study -- studied hurry -- hurried 规则动词过去式的构成 1、在清辅音后，读清辅音 / t / 。 worked / kt / helped / pt / passed / st / washed / t / watched / t t / 2、在浊辅音和元音后，读浊辅音 / d / 。 played / eid / carried / id / answered / d / lived / vd / used / zd / called / ld / 3、在 / t, d / 音后面, 读 / id / 。 wanted / tid / needed / did / 过去式加 -ed 的读音 keep -- kept sleep -- slept sweep -- swept tell -- told sell -- sold begin -- began sing -- sang sit -- sat swim -- swam ring -- rang give -- gave bring -- brought buy -- bought think -- thought teach -- taught catch -- caught come -- came become -- became grow -- grew know -- knew throw -- threw blow -- blew write -- wrote drive -- drove ride -- rode get -- got forget -- forgot lend -- lent send -- sent spend -- spent say -- said */sed/ pay -- paid stand -- stood understand -- understood put -- put read -- rea7d* Grammar am, is -- was are -- were do -- did go -- went have -- had see -- saw can -- could may -- might dig -- dug eat -- ate find -- found make -