译林牛津Book7_U3_Grammarandusage.ppt

牛津高中英语 (模块七 ·高二下学期) 板块：教学设计—课件 Unit 3 Grammar and usage Auxiliary verb Unit 3 课件描述： 学生将学会： 1）什么是助动词（用于协助主要动词构成谓语动词词组的词，自身没有词义，不可单独使用）。 2）助动词的功能（a. 表示时态；b. 表示语态；c. 构成疑问句；d. 与否定副词not合用，构成否定 句；e. 加强语气 ）。 3）最常用的助动词（be, do, have and modals (shall, will, should, would) ）。 Auxiliary verbs are used in forming tenses, moods and voices of other verbs. The verbs used for this purpose include be, do, have and modals. What are auxiliary verbs? 1. He like English. 2. He singing. 3. He married. 4. He sent to England. 5. you like college life? 6. you study English last year? 7. come to the party tomorrow evening. 8. He know that. doesn’t Auxiliary verbs is has got was Do Did Do did be（am/is/are/was/were/been） do（does/did） have（has/had ） modals（shall/should/will/would/can/ could/may/might/must/need/dare ） A phrasal auxiliary verb（have (got) to, had better/would sooner/rather ( … than)/cannot (help) but/be (not) to/be supposed to/ought to/used to/be about to/be able to） Auxiliary verbs Auxiliary verbs The small animals are kept in the cages. He is giving a lecture. The Internet has too much information that has not been evaluated for accuracy. Your house is bigger and nicer than mine. I am to go abroad on business tomorrow. 1. be（am/is/are/was/were/been） Auxiliary verbs Tip: be作为本动词表示状态或客观存在等意思。 be +不定词连用, 表示约定、义务、命令等未来的动作或状态。 be +现在分词构成各种进行时态。 be +过去分词构成被动语态。 be用于have/has/had后构成完成时。 1. be（am/is/are/was/were/been） Auxiliary verbs He didn’t find any useful information on the Internet. These kinds of errors do not occur as often when people use traditional reference materials. Then, why does he come here? You do know a lot about computers. Never did I see such a strange man. 2. do（does/did） Auxiliary verbs Tip: do作为助动词时的时态、人称和数的变化有do, does, did三种形式。 do+主词+原形动词构成疑问句。 do+not+原形动词构成否定句。 do (+not)+主词用于附带问句。 do +原形动词用于加强语气句。 Never (Only) 等+do+主词+原形动词用于倒装句。 2. do（does/di