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1、2022年高中英語 Unit3 The world online Grammar and usage教案 牛津譯林版選修7 (I)Teaching aims:1. Lead the students to know about some basic information about auxiliary verbs (words used as auxiliary verbs; function of auxiliary verbs);2. Enable the students to summarize usages of mon and important auxiliary verbs;
2、 3. Apply what theyve learned about auxiliary verbs.Teaching procedures: Step 1 Lead-in Q: What are auxiliary verbs?A: Auxiliary verbs are used in forming tenses, moods and voices of other verbs. Theverbs used for this purpose include be, do, have and modals.Step 2 Introduction Point out the auxilia
3、ry verbs.1. He doesnt like English. 2. He is singing. 1. He has got married. 4. He was sent to England. 5. Did you study English before you came here? 6.Do you like college life? 7. Do e to the party tomorrow evening. 8. He did know that.Step 3 Presentation:Auxiliary verbs 1. be（am/is/are/was/were/b
4、een）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. Tips: 1)be作為本動(dòng)詞表示狀態(tài)或客觀存在等意思。2)be +不定詞連用, 表示約定、義務(wù)、命令等未來的動(dòng)作或狀態(tài)。3)be +現(xiàn)在分詞
5、構(gòu)成各種進(jìn)行時(shí)態(tài)。4)be +過去分詞構(gòu)成被動(dòng)語態(tài)。5)be用于have/has/had后構(gòu)成完成時(shí)。2. do（does/did）He didnt find any useful information on the Internet.These errors do not occur as often when people use traditional reference materials.Then, why does he e here? You do know a lot about puters.Never did I see such a strange man. Tip:
6、1)do作為助動(dòng)詞時(shí)的時(shí)態(tài)、人稱和數(shù)的變化有do, does, did三種形式。2)do+主詞+原形動(dòng)詞構(gòu)成疑問句。3)do+not+原形動(dòng)詞構(gòu)成否定句。4)do(+not)+主詞用于附帶問句。 5)do +原形動(dòng)詞用于加強(qiáng)語氣句。6)Never (Only) 等+do+主詞+原形動(dòng)詞用于倒裝句3. have（has/had）I have never seen such a strange man. Can I have my hair cut now? I often have my assistant help me do it.Tip: 1)助動(dòng)詞have+過去分詞構(gòu)成完成時(shí)態(tài)。2)ha
7、ve +受詞+過去分詞表示請或讓別人做某事。 3)have +受詞+原形不定詞表示請或讓某人做某事。4. modals（shall/should/will/would/can/ could/may/might/must/need/dare）(1)Ok, I shall do what you said. You shall give me a cigarette, or I shall tell the boss. Where shall I meet you? (2)You should work harder. You must put on more clothes in case yo
8、u should catch a cold. (3)Will you give me a cigarette? This will be what you need. She will stand there sleeping for hours. Ok, I will do it. (4)Can I help you, sir? I am checking out. Could you give me the bill? Of course we can wait. I cant help thinking of it. (5)Must I go with you? No, you need
9、nt. You mustnt forget your medical card. Oh, it is wet outside. It must have rained yesterday. So it must be slippery outside. Do be careful! You neednt have told me that much.(6)I dare not say it is ugly. How dare you say so? Tip:1)shall用于陳述句，表諾言、決心、警告、強(qiáng)制等; shall用于詢問對方意向。2)should表示義務(wù)，責(zé)任等。3)will用于第二
10、人稱疑問句中,詢問對方意志或請求。will+原形動(dòng)詞用于所有人稱,表意愿。would +原形動(dòng)詞表示過去一段時(shí)間的習(xí)慣。4)can, could在口語中相當(dāng)于may, might,表示許可。can, could 表示能力,相當(dāng)于be able to。can, could表示懷疑、推測,一般用于疑問句或否定句。can,could用于慣用語。cant help或couldnt help+動(dòng)名詞表示忍不住。5)must表示必須、義務(wù)等,強(qiáng)調(diào)主觀因素。 need可以對must引導(dǎo)的一般疑問句作否定回答。 must的否定式表示不準(zhǔn),禁止等意思。 must+have+過去分詞表示對過去情況的推斷。must
11、+原形動(dòng)詞表示對現(xiàn)在情況的推斷。 neednt+have+過去分詞表示過去不必做卻已經(jīng)做了的事。6)dare作為情態(tài)助動(dòng)詞，一般只能用于疑問句或否定句中。3. A phrasal auxiliary verbhave (got) to, had better/would sooner/rather ( than)/cannot (help) but do/be (not) to/be supposed to/ought to/used to/be about to/be able to ）Its getting late. Ive (got) to go now.You dont have t
12、o take off your shoes. Many countries would rather be cautious with this new technology.The tickets had been sold out, so I could not (help) but go back home.The children are supposed to be at school before 8 a.m.I used to love cats but not now, because I was once attacked by a big black cat.He didn
13、t use to smoke when he was younger.Did he use to e as often as he does now?Tip: have to 強(qiáng)調(diào)客觀因素。would rather表示寧愿做某事。could not (help) but只能做某事。are supposed to應(yīng)該做某事。used to 表示過去常常做某事。Step 4 Practice ：Exercises on Page 41 in the textbook.Step 5 Homework (PPT 27)1. Review what we have learned in class.2. Go over the exercises in class. 3. Finish the workbook exercises (P120).
2022年高中英語 Unit3 The world online Grammar and usage教案 牛津譯林版選修7 (I)
