1、请在此输入您副标题第1页一、助动词一、助动词 在英语中,助动词本身没有意义,只是帮助实义动词完成一些语法功效,如组成否定句、疑问句、简略答语等。助动词主要有be,do,have等。第2页二二.助动词助动词dodo基本使用方法基本使用方法do有四种形式:原形do 现在式第三人称单数does 过去式did 分词donedo基本使用方法:组成否定句 组成普通疑问句及回答 组成特殊疑问句第3页1.1.原形原形必定式:do否定式:do not缩略否定式:dontI/we/you/they do.第4页Examples:I like this red hat.我喜欢这顶红色帽子。否定句:我不喜欢这顶红色帽
2、子。I dont like this red hat.普通疑问句及回答:你喜欢这顶红色帽子吗?是,我喜欢。不,我不喜欢。Do you like this red hat?Yes,I do./No,I dont.特殊疑问句:你喜欢哪一顶帽子?Which hat do you like?第5页 Lily and I want to go to Beijing.莉莉和我想去北京。否定句:Lily and I dont want to go to Beijing.莉莉和我不想去北京。普通疑问句及回答:Do Lily and you want to go to Beijing?Yes,we do.No,
3、we dont.莉莉和你想去北京吗?是,我们想去。不,我们不想去。特殊疑问句:Where doLily and you want to go?莉莉和你想去哪儿?第6页练习、我不喜欢狗。dont like dogs.、你喜欢什么颜色?What color do you like?、你有词典吗?是,我有。Do you have a dictionary?Yes,I do.第7页2.2.现在式第三人称单数现在式第三人称单数使用方法:does用在第三人称单数做主语,且时态为普通现在时句子中。注意:当does出现时,句子中用动词原形。必定式:does否定式:does not缩略否定式:doesnt第8页
4、Examples:She likes that red dress.否定句:She doesnt like that red dress.普通疑问句及回答:Does she like that red dress?Yes,she does./No,she doesnt.特殊疑问句:Which dress does she like?第9页3.3.过去式过去式必定式:did否定式:did not缩略否定式:didnt使用方法:did用在时态为普通过去时句子中,用于全部些人称。注意:当did出现时,句子中用动词原形。第10页ExamplesExamples:They wanted to go to Beijing.否定句:They didnt want to go to Beijing.普通疑问句及回答:Did they want to go to Beijing?Yes,they did./No,they didnt.特殊疑问句:Where did they want to go?第11页