1、Discovering useful structuresBy the end of this period,you will be able to1.identify the usage of infinitives as predicative.2.summarize the different forms of infinitive.3.apply infinitives correctly in the real situation.01Lead inWhats your dream?How to achieve your dream?02Observe and analyze 1.M
2、y dream is to be an artist.2.My aim is to become an artist.3.The best way to achieve my dream is to make efforts.Predictive(表语）1.The purpose of setting a dream is to offer a guide to the future.2.When Im faced with difficulties,my teachers suggestion is to keep going.3.What I intend to do next is to
3、 improve my ability to appreciate art.4.I believe that my dream is to come true!5.My duty is to finish all my work.目的目的建议建议计划计划预期预期责任责任The meaning of infinitives as predictivepurposesuggestionplandutyexpectationShe pretended to be sleeping when her mother came in.My biggest ambition is to be admitte
4、d into Central Academy of Fine Arts.This painting is not to be sold.Its said that they are not to attend the art exhibition this weekend.1.She pretended to be sleeping when her mother came in.2.My biggest ambition is to be admitted into Central Academy of Fine Arts.3.Its said that they are not to at
5、tend the art exhibition this weekend.4.This painting is not to be sold.主动语态主动语态被动语态被动语态 一般式一般式 to doto be done 进行式进行式to be doing 否定式否定式not to donot to be done动词不定式作表语动词不定式作表语1 结构结构 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 功能功能（1）表示
6、目的 The next step is to understand exactly what conveys in the contemporary 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
7、 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（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 ar
8、e not to smoke.儿童不准吸烟。（禁止）【学法点拨学法点拨】动词不定式作表语的两种特殊用法（1）不定式短语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
9、时，作表语的不定式可省 略to Anything we can do is guarantee it will 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
10、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.玛丽似乎不喜欢这个主意。03Practise When I was 13,my only purpose was _(become)t h e s t a r o n o u r football team.The first thing I do every morning is _ _ _ _ _ _ _(t a k e)exercise.A permanent peace is _(achieve)at the conference.It is typical of a
11、 humble person _(criticize)other people.to becometo taketo be achievednot to criticize1.Her work is _(look)after the children.2.My aim is _(go)to Tsing Hua University.3.She seemed _(think)about the problem.4.They appeared _(agree)with what we said.5.Suppose you are _(be)a journalist for China Daily,
12、do youknow what kinds of jobs they have?6.The students trust her very much;as a result,her advice is_（influence）their decisions.to lookto goto thinkto agreeto beto influence1.1.这位年轻的歌手想通过这首歌曲和他的歌迷们分享他对摇滚音乐的热爱。这位年轻的歌手想通过这首歌曲和他的歌迷们分享他对摇滚音乐的热爱。The young singers intention of performing the song was _.2.
13、2.做生意最好的方式是建立你和客户之间的信任。做生意最好的方式是建立你和客户之间的信任。The best way to do business is _.3.3.这些幸存者打算建造一座纪念碑纪念那些拯救了他们生命的英雄们。这些幸存者打算建造一座纪念碑纪念那些拯救了他们生命的英雄们。What the survivors attempted to do was _.4.4.教育的主要目的是启发学生有创造力。教育的主要目的是启发学生有创造力。The main purpose of art education in schools is _.to share his love for rock mus
14、ic with his fansto build trust between you and your client to build a memorial to the heroes who save their livesto inspire students to be creativeWork in pairs to make conversations using the following questions and sentences.1.Whats your biggest dream/ambition in life?2.How are you going to make y
15、our dream come true?How are you going to achieve your goal?3.Do you have any plans?4.What might be difficult for you?5.How are you going to deal with?My biggest dream/ambition in life is toI think all I have to do is My plan is to I think one of the hardest things might beI guess the best way to isO
16、rganize the information and write a speech about dream.I Have a Dream Hello,everyone!Today Im glad to be here to share with you my dream.My biggest dream in life is to _.People might wonder why I had such a special dream.Well its because _.I really want to realise this dream.I think all I have to do
17、 is _.To realise my goal,my plan is to _.To be honest,I do understand it is never easy to pursue a dream.One of the hardest thing might be _.However,nothing is impossible to a willing heart.Difficult as it is,I guess the best way to _ is _.I am proud of my dream,and I will definitely fight for it!Th
18、ank you for listening.I Have a Dream Hello,everyone!Today Im glad to be here to share my dream with you.My biggest dream in life is to become an English teacher.People might wonder why I had such a special dream.Well,its because that I want to devote myself to the cause of spreading Chinese traditio
19、nal culture to the world.I really want to realise this dream.I think all I have to do is to keep learning and keep going.To realise my dream,my plan is to have a good master of English at first.And then I intend to go aborad to further my study after I graduate from high school.To be honest,I do und
20、erstand it is never easy to pursue a dream.One of the hardest things might be to overcome the challenges I will meet.However,nothing is impossible to a willing heart.Difficult as it is,I guess the best way to achieve my dream is to pay endless efforts and never give up.I am proud of my dream,and I will definitely fight for it!Thank you for listening.Sample04Summarizeto do 不定式不定式一、一、Form二、二、Meaning主动语态主动语态被动语态被动语态purpose 一般式一般式 to doto be doneplan 进行式进行式to be doingsuggestion 否定式否定式not to donot to be doneexpectationduty
