高中英语选择性必修三 Unit 1 Art Period 3 Discovering useful structures 课件20202021学年

1、人教版 选择性必修三Period 3 Discovering useful structuresThe infinitive of the verb as the predicativeUnit 1ART1.Enable the Ss to master the usage of the infinitive of the verb as the predicative2.Enable the Ss to use the relevant grammar flexibly and authentically in the real situation.Teaching Goals本单元to d

2、o sth基本用法自我探究。观察课文例句，总结to do sth 的用法。1. Perhaps the best way to understand Western art is to look at the development of Western painting over the centuries.2.During the Middle Ages, the purpose of Western art was to teach people about Christianity.3. In this work, Monets aim was to convey the light

3、and movement in the scene动词不定式在句子中做表语。自我探究基本构成定义定义To do sth 不定式 相当于名词、形容词、副词。充当主语、宾语、定语、表语、宾语补足语、状语。动词不定式作表语1 结构 am/is/are/was/were + 不定式The purpose of education is to develop a fine personality in children. 教育的目的是发展儿童良好的品格。2 功能（1）表示目的The next step is to understand exactly what conveys in the contem

4、porary painting. 下一步要弄清楚这幅当代画所表达的确切内涵。词汇复现 （2）表示事态发展的结果、预期的结果及预言You must speak out，if we are to remain friends. 如果我们还想继续做朋友的话，你就必须把话都说出来。We believe man is to live a better life in the future. 我们相信人类在将来会生活得更好。（3）用于第一人称疑问句，表示征求意见What am I to do if I cant gain entry to the final? 如果不能进入决赛，我该怎么办呢？词汇复现 （

5、4）用于被动语态，相当于should，具有情态意义These books of great value are not to be sold. 这些书很有价值，不应该卖掉。词汇复现 （5）表示“安排、命令、决定、劝告、意愿、禁止”等I am to set out for China next week. 下周我要动身到中国去。（安排） You are to have a face-to-face talk with them. 你应该和他们当面谈一谈。（劝告） Children are not to smoke. 儿童不准吸烟。（禁止） 【学法点拨】 动词不定式作表语的两种特殊用法（1）不定式

6、短语to let，to blame，to seek 等常用主动形式表示被动含义The house is to let. 这栋房子要出租。 Who is to blame for the population decline of the tigers in that area? 谁应该为那个地区老虎数量的下降负责任？词汇复现 The reason for global warming is not far to seek. 全球变暖的原因不难找到。（ 2）当主语部分含有动词 do 的某种形式时，作表语的不定式可省 略to Anything we can do is guarantee it w

7、ill be delivered on time. 我们能做的只是保证按时交货。词汇复现 In the evening the only thing he did was read on the blog. 晚上他做的唯一的事 ，是浏览博客。后接不定式作表语的常见动词连系动词： be seem appear remain get prove grow 等，用来表达将来的动作或者卓明主语的内容。A use of the computer network is to send e-mails.计算机网络的一个用途是发送电子邮件。Mary doesnt seem to like the idea.玛

8、丽似乎不喜欢这个主意。1. Her work is _( look ) after the children.2. My aim is _( go ) to TsingHuaUniversity. 3. She seemed _( think ) about the problem. 4. They appeared _( agree ) with what we said.to lookto goto thinkto agree不定式作表语练习1：5. Suppose you are （be） a journalist for China Daily，do you know what kin

9、ds of jobs they have?6. You are （reward） if you have made a breakthrough. 7.Through my years of school life，Ive learned that if we are_ （make） a difference in life，its of great importance that we should begin with small things. 8.The students trust her very much；as a result， her advice is _（influenc

10、e） their decisions. to be to be rewarded to make to influence 不定式作表语练习2：运用不定式完成句子。The young singers intention of performing the song was _.The best way to do business is _. What the survivors attempted to do was _.to share his love for rock music with his fans.和他的歌迷们分享他对摇滚音乐的热爱。to build trust betwee

11、n you and your client. 建立你和客户之间的信任。建造一座纪念碑纪念那些拯救了他们生命的英雄们。to build a memorial to the heroes who save their lives.不定式作表语练习2运用不定式完成句子。4.The main purpose of art education in schools is _.5. The aim of the two leaders at the conference was _.6. For a humble person, one of the hardest things might be _.t

12、o inspire students to be creative.启发学生有创造力。to achieve permanent peace between their two countries.在两国之间建议永远的和平。批评其他人。to criticize other people.不定式作表语练习2运用不定式完成句子。7. When you are faced with a serious decision, my suggestion is _.8. The mother believes her duty is _._.9. All he wanted after a tiring d

13、ay was _.to listen to your own inner voice.聆听你自己内心的声音。抚养儿子成为一个有高尚思维和大方心胸的人。自己一个人呆着。to be left alone.become a man with a noble mind and a generous heart.to raise her son to 不定式作表语练习3运用不定式自由造句子。1. My biggest ambition is _.2. I think all I have to do is _.3. My latest plan is to _.4.I think one of my biggest challenge might be_.5. I guess the best way to learn English is _.to be admitted into the Qinghua University.to memorize all the new words in this unit.finish my homework carefully.(to) study harder.to read more不定式作后置定语1.He was the first pers