高中英语选修七Unit1 Living well Period 3教案

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高中英语选修七Unit1 Living well Period 3教案

Period 3 Grammar 设计者 邵宁宁 Teaching aims   ‎ ‎1.Students will be able to recognize the infinitives and know the exact meanings of them.‎ ‎2.Students will be able to use these structures correctly.‎ Teaching procedures   ‎ Step 1 Revision Ask several students to retell Marty's story.Show Marty's mini biography on the PowerPoint.‎ My mini biography Name Marty Fielding Status High school student Health Developed a muscle disease at the age of 10,very weak,cannot do things like normal people Interests and Hobbies ‎ ‎·Enjoying writing and computer programming ‎·Going to the movies and football matches with friends ‎·Spending a lot of time with my pets—two rabbits,a parrot,a tank full of fish and a tortoise Ambition To work for a firm that develops computer software Motto Live one day at a time Step 2 Discovering useful structures ‎1.基本概念 不定式是动词的一种非谓语形式,没有人称和数的变化,而且不能单独用作谓语,但仍旧有动词的特点,即可有自己的宾语和状语,构成不定式短语,使用频率较高。是一个考试经常考查的语法点。‎ ‎2.基本形式 主动形式 被动形式 一般式 to do to be done ‎ 完成式 to have done to have been done 进行式 to be doing ‎/‎ 完成进行式 to have been doing ‎/‎ 否定形式 ‎ not to do ‎ not to be done 疑问词+不定式 wh- to do wh- to be done 复合结构 sb.to do/for sb.to do ‎/‎ ‎  3.句法功能 不定式具有名词、形容词、副词的特征,在句中可以充当主语、表语、宾语、定语、状语和补足语,还可以有自己的逻辑主语,即for sb.to do sth.。‎ It is good to_help_others.(subject)‎ It is my ambition to_make_sure_that_the_disabled_people_in_our_neighbourhood_have_‎ access_to_all_public_buildings.(subject)‎ My ambition is_to_work_in the computer industry when I grow up.(predicative)‎ I don't have time to_sit_around feeling sorry for myself.(attributive)‎ I am the only student in my class to_have_a_pet_snake.(attributive)‎ A big company has decided to_buy_it_from_me.(object)‎ My fellow students have begun to_accept_me_for_who_I_am.(object)‎ I have had to work hard_to_live_a_normal_life.(adverbial)‎ Some days I am too tired to_get_out_of_bed.(adverbial)‎ We must call on local government_to_give_financial_assistance_to_disabled_people. (object complement)‎ ‎4.不定式的时态与语态 根据需要,不定式可以有一般式(to do),完成式(to have done),完成进行式(to have been doing),进行式(to be doing)等时态形式以及被动形式to be done和to have been done。‎ He didn't allow us to go home early.‎ 他不允许我们早回家。‎ He seemed to have seen the film.‎ 他好像看过这部电影。‎ She is said to have been living in the city for six years.‎ 据说她住在该城市六年了。‎ The boy pretended to be reading when his mother came in.‎ 当他母亲进来的时候,小男孩假装在读书。‎ He is said to have studied abroad a few years ago.‎ 据说他几年前在国外学习过。‎ The book is said to have been translated into many languages.‎ 据说此书已被译成了多种语言。‎ ‎[注意]‎ ‎1.The following verbs are usually followed by the infinitive.‎ afford,agree,appear,arrange,ask,attempt,care,choose,claim,come,consent,dare,decide,demand,deserve,determine,elect,endeavor,expect,fail,get,guarantee,hate,help,hesitate,hope,hurry,intend,learn,long,manage,mean,need,offer,plan,prepare,pretend,promise,refuse,say,seem,tend,threaten,want,wish For example:‎ I can't afford to_go to the pub.‎ He agreed to_practice_more.‎ You should learn to_express_yourself.‎ They managed_to_fix_the_problem.‎ ‎2.Explanation of the gerund and the infinitive Some words can be followed by either the infinitive or the -ing form.Please pay attention when there is no difference in meaning and when there is difference.‎ ‎(1)The gerund and the infinitive (no difference in meaning)‎ We use the gerund or the infinitive after the following verbs:‎ begin He began talking. ‎ He began to talk.‎ continue They continue smoking.‎ They continue to smoke.‎ hate Do you hate working on Saturdays?‎ Do you hate to work on Saturdays?‎ like I like swimming.‎ I like to swim.‎ love She loves painting. ‎ She loves to paint.‎ prefer Pat prefers walking home.‎ Pat prefers to walk home.‎ start They start singing.‎ They start to sing.‎ ‎  We use the gerund or the infinitive after the following verbs.There are two possible structures after these verbs.Gerund:verb+-ing ‎ Infinitive:verb+person+to-infinitive advise They advise walking_to town.‎ They advise us_to_walk to town.‎ allow They do not allow smoking here.‎ They do not allow_us_to_smoke_here.‎ encourage They encourage_doing_the test.‎ They encourage us_to_do_the test.‎ permit They do not permit smoking here.‎ They do not permit us_to_smoke here.‎ ‎  We use the following structures after the word recommend:‎ recommend They recommend walking_to town.‎ They recommend that_we_(should)_walk_to_town.‎ ‎  (2)Some verbs or verb phrases have different meanings when used with the gerund or the infinitive.‎ GERUND INFINITIVE forget He'll never forget spending_so much money on his first computer. 他永远不会忘记在第一台电脑上花费了这么多钱。‎ Don't forget to_spend money on the tickets. ‎ 不要忘记用钱去买票。‎ go on Go on reading the text.‎ 继续读这篇文章。(继续做同一件事)‎ Go on to_read_the text.‎ 继续读这篇文章。(继续做另一件事)‎ mean You have forgotten your homework again.That means phoning_your mother.‎ 你又忘记做家庭作业了,这意味着我要打电话给你妈妈。‎ I meant to_phone your mother,but my mobile didn't work.‎ 我本打算打电话给你妈妈,但是我的手机坏了。‎ remember I remember switching_off the lights when I went on holiday.‎ 我记得我去度假时把灯都关掉了。‎ Remember to_switch_off the lights when you go on holiday. ‎ 当你去度假时,记得把灯关掉。‎ stop Stop reading_the text.‎ 停止读这篇文章。‎ Stop to_read_the text.‎ 停下来读这篇文章。‎ try Why don't you try running_after the dog?‎ 你为什么不尝试跟着狗跑呢?‎ I tried to_run after the dog,but I...‎ 我竭尽全力跟着狗跑,但是……‎ Step 3 Drilling Ask students to do Exercise 2 on Page 5 and check with their partners then check together.‎ Keys:to have kept you waiting;to have forgotten;to have finished;‎ Ask students to do Exercise 3 and share their past experience in a group.‎ Keys:to have spent;To free;to see;to treat;to help pass;to abolish Step 4 Using the infinitive Ask students to translate the following sentences into English and pay attention to the use of the infinitive.‎ ‎1.我忘了让你去社区服务中心了。‎ ‎2.在检查机器之前关掉电源是很重要的。‎ ‎3.我不知道哪儿能找到这种纽扣。‎ ‎4.幸运的是,我们没有更多的活儿要做。‎ ‎5.海伦很高兴到过中国20多个省、市。‎ ‎6.她事业有成,现在最大的愿望就是结婚生子。‎ Suggested answers:‎ ‎1.I forgot to ask you to go to the community service center.‎ ‎2.It's very important to turn off the electricity before you check the machine.‎ ‎3.I don't know where to find such a kind of button.‎ ‎4.Luckily,we don't have much more work to do.‎ ‎5.Helen is very pleased to have travelled in more than 20 provinces and cities in China.‎ ‎6.She has been very successful in her work,and now her greatest wish is to get married and have some children.‎ Step 5 Homework Finish off Exercises 2 and 3 on P49.‎
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