be动词一般过去式ppt课件.ppt

be动词的一般过去式Past Simple of“be”,主讲人：王洁石嘴山实验中学,.,Lets start with a story,Once upon a time,there was a girl named Snow White.,.,In her kingdom,many people were familiar with her because she was the most beautiful and lovely girl in the world.,.,One day,she was given a big,red apple and ate it,.,However,today we will focus on the grammar in the story,but not the story itself.,Lets see the sentences in the story:1.Once,there was a girl named Snow White.2.In her kingdom,many people were familiar with her because she was the most beautiful and lovely girl in the world.3.One day,she was given a big,red apple and ate it,Question:Do you notice the word“was&were”?Why do we use“was&were”here?,.,be动词的一般过去式（Past Simple of“be”）,1.be动词表达意义be动词的一般过去时态表示人或物在过去情况或存在的状态。E.g.1.Jim was thirteen last year.2.They were busy yesterday.,.,The things happened in the past.,future,now,past,The Simple Past Tense,A diagram may help to illustrate the problem:,.,Note:在英语中，时间的变化是由动词变化体现出来的,.,They were popular.,One more example:,.,They are popular.,.,2.be动词的变化,Note:am,is的过去式是was,are的过去式是were.,.,3.be动词构成的句式,3.1 肯定句主语+be动词过去式+其他e.g.I am busy.(一般现在时)I was busy.(一般过去时),Note:单数用was，复数用were.,.,3.2 否定句主语+was/were+not+其他e.g.I am not busy.(一般现在时)I wasnt(was not)busy.(一般过去时),.,3.3 一般疑问句Was/Were+主语+其他？e.g.1.Are you busy?(一般现在时)2.Were you busy?(一般过去时),.,15,4.be动词的过去式有四巧,时间状语巧：,形式巧：,否定句结构巧：,疑问句式巧：,表示过去的短语要记牢；,单数was，复数were；,not紧跟was/were；,was/were向前跑（提前）。,.,am,is 过去式 was否定式 was not/wasnt are 过去式 were 否定式 were not/werent,5.1 be动词的一般过去时的用法,5.小结,5.2 be动词的一般过去时的结构,肯定句：主语+谓语动词的过去式+其他否定句：主语+was/were+not+其他一般疑问句：Was/Were+主语+其他？,.,Many Thanks,.,