小升初一般过去时课件.ppt

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1、第四章动词和时态第五节一般过去时家有学霸曹老师知识梳理一、一般过去时的用法一般过去时表示在过去的某个时间里发生的动作或存在的状态。标志时间词：yesterday,yesterday+时间,last+时间,ago,before,thedaybeforeyesterday,justnow等。二、动词过去式的变化规则1.一般情况下，在动词词尾加ed。如：work—worked，listen—listened2.以不发音的e结尾的动词，在词尾加d。如：live—lived，close—closed3.以辅音字母加y结尾的动词，改y为i，

2、再加ed。如：cry—cried，study—studied4.以重读闭音节结尾，且词尾只有一个辅音字母的动词，双写最后这个辅音字母，再加ed。如：stop—stopped，drop—dropped5.不规则变化(需逐个记忆)。如：am/is—was，are—were，do/does—did，bring—brought，come—came三、一般过去时的句型结构1.肯定句：主语+be动词/动词的过去式+其他.如：Iwatchedamovielastnight.Theywenttotheparklastweekend.2.否定句：

3、(1)主语+be动词+not+其他.如：Tomwasn'tathomeyesterday.(2)主语+didn't+动词原形+其他.如：Bendidn'tcometoschoolyesterday.Wedidn'tgoshoppinglastnight.3.一般疑问句：Be动词/Did+主语+动词原形+其他?如：WereyouinschoollastFriday?Didyourmothercookdinnerlastnight?DidyouwashyourclotheslastSunday?4.特殊疑问句：特殊疑问词+一般疑问句

4、？如：Iwasathomeyesterday.→Wherewereyouyesterday?Iwatchedamovielastnight.→Whatdidyoudolastnight?Theywenttotheparklastweekend.→Wheredidtheygolastweekend?考点精析考点1考查一般过去时的用法【例1】用所给动词的适当形式填空。1.It(be)Mary'sbirthdaylastFriday.2.Weall(have)agoodtimelastnight.解析:本题考查动词的过去式。1,2小题

5、中的时间词lastFriday和lastnight都是过去的时间，故而动词用过去式。答案：1.was2.had【例2】改错。1.Hedidn'thishomeworklastSunday.___________________________________________2.Theywereplayfootballafterschoolyesterday.___________________________________________解析:本题考查一般过去时的动词形式。第1小题是过去式的否定句，此题只有助动词didn't

6、，其后没有原形实义动词，“做作业”词组是dohishomework,故需要在didn't之后加上do;第2小题be动词were在过去式的句子中表达状态，而该句的中心词playfootball是动词词组，故而不需要be动词的参与，直接将动词变成过去式形式就可以了。答案:1.Hedidn'tdohishomeworklastSunday.2.Theyplayedfootballafterschoolyesterday.举一反三1.用am，is，are，was，were填空。(1)Today_____June2nd.Yesterday

7、_______June1st.It_______Children‘sDay.Allthechildren________veryhappy.(2)—________theteachersintheofficejustnow？—No，they_______ontheplayground.Andnow，they_______intheclassroom.I______intheclassroom，too.iswaswaswereWerewereaream2.用所给动词的适当形式填空。（1）Didyou_____(play)thepi

8、anoyesterday?（2）I_____(write)aletterlastnight.（3）Who________(clean)thewindowyesterday?（4）Sarah_____(run)toschoolthismorning.（5）Tom_