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《Grammar and usage(1)： Auxiliary verbs》精品教案优质课下载
学习过程
StepI 【独立自学】
1. 助动词定义：助动词（Auxiliary Verb）一般没有独立的实际意义，不能单独作谓语，必须和其他实义动词一起构成谓语，表示时态、语气和语态等。常见的助动词有 be, do, have ，情态动词和助动词短语。
请判断下列句子中是否含有助动词。
1). The kid doesn't like swimming. ___________
2). The student does sports every day. ___________
3). He has a lot of homework to do today. ____________
4). He has finished his homework. ____________
5). The story is scary. ____________
6). I am speaking against the Internet. ____________
Task1【观察思考】朗读下列句子，注意be动词的用法。
1). I am studying in NO.4 middle school now.
2). We are crossing the Garden Bridge now.
3). Is he reading the book now?
4). Aspirin was invented in 1897.
5). The students were not studying when the teacher came into the classroom.
【归纳总结】
be作为助动词时, 有_____, _____, ______, _____, ______五种形式；主要用于构成进行时和被动语态。
Task2【观察思考】朗读下列句子，注意do的用法。
1). He didn’t find any useful information on the Internet.
2). Do you often use the Internet to talk to your friends?
3). He does know a lot about the Internet.
【归纳总结】
do作为助动词时, 主要用于否定句、疑问句和强调谓语动词，随时态、人称和数的变化有______, _______, _______ 三种形式。
Task3【观察思考】朗读下列句子，注意have的用法。