be动词一般过去式-课件.ppt

1、be动词一般过去式-PPT课件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 itLets see the sentences in the story:1.Once,there

2、 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 itQuestion:Do you notice the word“was&were”?Why do we use“was&were”here?1.be动词表达意义be动词的一般过去时态表示人或物在。E.g.1.J

3、im was thirteen last year.2.They were busy yesterday.The things happened in the past.futurenowpastThe Simple Past TenseA 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.be动词现在：am,is,are将来：will be 进行：being过去：was,wereNote:.e.g.e.g.15 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 5.2 be动词的一般过去时的结构1.肯定句：主语+谓语动词的过去式+其他2.否定句：主语+was/were+not+其他3.一般疑问句：Was/Were+主语+其他？