一般过去式复习课件.ppt

Did you ever see a lassie? 一般过去时表示过去某个时间里发生的动作或状态；在一般过去时态中动词通常用动词的过去式形式来表示，而动词的过去式是在动词原形的基础上变化的。动词的过去式可分为规则动词和不规则动词。 动词+ed的变化规则 1)直接加ed, 如:play---played 2) 以e结尾的,直接加d，如： dance— danced 3) 以“辅音字母+y”结尾的,改y为i,再加-ed，如：study-studied 4)不规则变化： take—took see—saw read—read do--did, go--went, eat-ate, sing-sang….. 动词过去式发音规则 　规则动词词尾加-ed有三种读音： 　　1. 在清辅音后读作[t]。如：asked, helped, watched, stopped 　　2. 在浊辅音和元音后读作[d]。如：enjoyed, studied, moved, called 　　3. 在t / d后读作[id]。如：wanted, needed do see get read eat take sing go saw went took read ate sang did got play clean stop watch wash dance study played cleaned stopped watched washed danced studied bought buy swim swam 过去时的时间标志 yesterday（昨天）, last week（上周）, last month（上个月）, last year（去年）, two months ago（两个月前）, the day before yesterday（前天），in 1990 (在1990年), in those days （在那些日子里）等表示过去的时间状语。 如： 　　I was born in 1990. (我出生在1990年)。 　　When did you go to the park? （你是什么时候去的公 园）。 　　I went to the park last week. （我是上周去的公园） Does she do her homework? Did she do her homework yesterday? Did ……+动词(原形)? Yes,…did. / No, …didn’t. 如: Did you play football yesterday? 1) Did you________ the room?（打扫） 2) Did they go to the park last Monday?(作肯定和否定回答） 过去时的一般疑问句 助动词（do/does----did) Yes, they did. / No, they didn’t. 1. Was …? Yes,…was. / No, …wasn’t. Was the weather rainy yesterday? 2) Was Lucy bored? be动词（am/is---was; are—were) Yes, it was./ No, it wasn’t. Yes, she was./ No, she wasn’t. 2. Were …? Yes,…were. / No, …weren’t. 如: Were you at home yesterday? Yes, I was. / No, I wasn’t. Were the boys happy yesterday? Were you a student three years ago? Yes, they were./ No, they weren’t. Yes, I was. / No, I wasn’t. 1.Lily visit her grandparents last summer holiday. 2.They were teachers five years ago. 3.He ate some good food last weekend. 下面都是过去时的肯定句，想一想你能够将他们准确的转换为否定句吗? 1.Lily visited her grandparents last summer holiday. Lily didn’t visit her grandparents last summer holiday. 2.They w