M7U3_Grammar 助动词

1、Grammar and usageAuxiliary verbs(助动词)1）协助主要动词构成谓语动词词组的词叫助动词(Auxiliary Verb)。被协助的动词称作主要动词(Main Verb)。 助动词自身没有词义，不可单独使用。 He doesnt like smoking. 2）助动词协助主要动词完成以下功用，可以用来：）助动词协助主要动词完成以下功用，可以用来： (找出助动词并思考用途找出助动词并思考用途) a.表示时态表示时态 He is singing. He has got married. Your dream will come true. b. 表示语态表示语态 He

2、was sent to England. c. 构成疑问句构成疑问句 Do you like college life? d. 与否定副词与否定副词not合用，构成否定句合用，构成否定句 I dont like him. e. 加强语气，强调谓语动词加强语气，强调谓语动词 He did know that. f. 构成虚拟语气构成虚拟语气 If I lived in London, I would go to London Bridge.2）助动词协助主要动词完成以下功用，可以用来：）助动词协助主要动词完成以下功用，可以用来： (找出助动词并思考用途找出助动词并思考用途) 1. I will

3、be speaking against the Internet.2. Too much information has not been evaluated.（找出句中的所有助动词）（找出句中的所有助动词）Tip: 除情态助动词之外，其他助动词可以除情态助动词之外，其他助动词可以有多个同时出现在谓语中。有多个同时出现在谓语中。will be has not been 一句话是否只能有一个助动词？一句话是否只能有一个助动词？1、助动词be（am, is, are, was, were, being, been）的用法 She is _(V.). 思考：动词可能会以什么形式出现？（1） 进行时态

4、：Be+V-ing She is _(read) a book now.（2）被动语态：Be+V-ed She is _(invite) to attend the meeting.readinginvited（3）be + to do，构成将来时1）表示事先商定、安排或准备要做的事情The students were told that they _ at the school gate at 2:00 the following afternoon. A. met B. will meet C. were to meet D. were met C一般一旦确定，不轻易更改。2）表示“应该“

5、，同should，ought toYou are to be back before 5.You are not to smoke in this room.3） be +to do,不定式做表语,表示主语和表语在概念上是等同的。My dream is to enter a key university. His plan is to clean the room. My wish is to be a doctor. 4）表示可能性）表示可能性 。She was nowhere to be found. Such books are to be found in the library._

6、he _ tomorrow, I would go to meet him at the station. A. Were; to come B. Was; coming C. Did; come D. Would; come A5）用于“if 主+were to do”，表示虚拟假设。助动词助动词have的用法的用法:1) have +过去分词过去分词，构成，构成_。如。如：完成时态完成时态I have studied English for ten years.我已经学英语十年了。我已经学英语十年了。English _ by me for ten years. 2) have + been

7、 +现在分词现在分词，构成，构成_.I have been studying English for ten years. 我我一直一直在学英语，已达十年之久。在学英语，已达十年之久。完成进行时态完成进行时态has been studied 助动词助动词do 的用法的用法:1) 构成否定祈使句。构成否定祈使句。不要这不要这么么紧张紧张。说明说明:构成否定祈使句只用构成否定祈使句只用do,不用不用did和和does。2)放在动词原形前放在动词原形前, 表表_。 我我确确实实喜喜欢欢过过它。它。3）构成一般疑问句）构成一般疑问句你觉得困吗？你觉得困吗？强调强调Dont be so nervous.

8、I did like it.4)代代替刚出现过的动词，避免重复替刚出现过的动词，避免重复He knows how to drive a car, _he?He loves animals as much as I _.doesntdoDo you feel sleepy?情态助动词情态助动词也称情态动词，辅助动词来体现情态助动词也称情态动词，辅助动词来体现情感态度，有情感态度，有must, may, can, should等，与等，与前几类助动词不同，前几类助动词不同，每个情态助动词有自己的不同意义及用途，可自成一体，是高考语，可自成一体，是高考语法的一大重点。法的一大重点。Page 41 E

9、xercise A1. The president is to speak on TV tonight.2. I am going to attend a meeting in a week.3. He was about to go out when it rained.4. Its getting late. I have (got) to go now.5. They are supposed to be at school before 8.6. I used to love cats, until I was attacked by a black cat last week.7. I would sooner walk to t