Unit 4 Breaking boundaries Using language--高中英语外研版选择性必修第二册.pptx
UNIT 4Breaking boundaries-Using language1.Students could learn some words and phrases.2.Students could undestand the main usage of this grammar.3.Students could write some a passage by using this grammar.Learning Aims:What is your understanding of this grammar？Share you ideas with othersit 做形式主语It as an empty subject Before learning,please try to write some sentences by using this grammar-“It as an empty subject”.Brainstorming:Before learning this grammar,what grammars come to your mind?1.subject2.the usage of it3.Try to write your opinions in your notebook!It as an empty subjectAnswer the questions.aBut it is vital not to take any chances.bBut not to take any chances is vital.cIt is important to remember that Ebola doesnt respect national boundaries.dTo remember that Ebola doesnt respect national boundaries is important.1What does“it”refer to in sentences(a)and(c)?“not to take any chances”“to remember that.boundaries”Answer the questions.aBut it is vital not to take any chances.bBut not to take any chances is vital.cIt is important to remember that Ebola doesnt respect national boundaries.dTo remember that Ebola doesnt respect national boundaries is important.What is the difference between the two groups?The first sentences in each group use“it”as an empty subject and the other sentence are notAnswer the questions.aBut it is vital not to take any chances.bBut not to take any chances is vital.cIt is important to remember that Ebola doesnt respect national boundaries.dTo remember that Ebola doesnt respect national boundaries is important.Why does the author choose to use sentences(a)and(c)?These sentences are balanced and the information is clear.当不定式（短语）、动名词（短语）或从句在某个句子中作主语时，为保持句子结构前后平衡，避免头重脚轻，因此常用it作形式主语置于句首，而将真正的主语放在句尾。此时it只起先行引导作用，本身无词义。e.g.It is wrong to tell a lie.(说谎是错误的。)It为to tell a lie的形式主语It is no use arguing about it.(争吵是没用的。)It为arguing about it的形式主语It 作形式主语的常见句型：It+be+形容词+to do sth./doing/that.e.g.It is very important to learn a foreign language.(学一门外语非常重要。)It is useless crying over the spilt milk.(覆水难收。)It+be+名词词组+doing/that.e.g.It is no good telling lies.(撒谎没好处。)It is a pity that you didnt go to see the film yesterday.(你昨天没看成那部电影真遗憾。)考试重点：It+be+过去分词+that.该句型常见动词有：say,hope,think,suppose,expect,report,know,believe,decide,etc.e.g.It is said that they have invented a new type of computer.(据说他们发明了一种新型电脑。)According to the“2017 Hollywood Diversity Report”,to get roles in American film and television is no longer quite so difficult for women and minorities.This is another small but important advance against gender and racial discrimination.Rewrite the underlined parts using it as an empty subjectit is no longer quite so difficult for women and minorities to get roles in American film and televisionRewrite the underlined parts using it as an empty subjectit is now a more realistic hope for minority actors to become a leading actor in HollywoodThe report analysed 200 films released in 2015 and 1,206 TV shows from 2014 to 2015,and discovered that to become a leading actor in Hollywood is now a more realistic hope for minority actors.Rewrite the underlined parts using it as an empty subjectit is more common than before for women to write and direct Hollywood films In more good news,to write and direct Hollywood films is more common than before for women.Rewrite the underlined parts using it as an empty subjectit is seen as acceptable by film studios to cast white actors as Asian charactersThe bad news is that there is still a long way to go.Leading roles are more likely to be given to white actors.Asian American actors,in particular,still face problems.Even now,to cast white actors as Asian characters is seen as acceptable by film studios.Nowadays,people all over the world are becoming more and more connected,as if the world were getting smaller as if we were living in a“global village”.Technology is largely responsible for bringing people together.Channels of communication,such as the mobile phone and the Internet,have made it possible to speak instantly with someone on the other side of the planet,enabling us to form close connections with people of completely different cultures.The television,meanwhile,is a window on the world,giving us quick and easy access to other cultures and lifestyles.Take notes quickly！重点词汇largely 主要地;在很大程度上;多半responsible for 是的原由;为负责such as 例如;等;mobile phone 移动电话;手机meanwhile 同时;a window on the world 世界之窗;easy access 容易进入Cultural exchange helps us to be more inclusive and to overcome culture shock.But inclusiveness doesnt mean that our cultures will merge into one another.Rather,its about countries and people making a joint effort to come together to create a more harmonious and understanding world,so that we can all enjoy the mutual benefits.Take notes quickly！重点词汇Cultural exchange 文化交流;文化交换inclusive 包含全部费用;culture shock 文化冲击，文化休克inclusiveness 包容性;merge into 合并到;汇合；并入joint effort 共同的努力harmonious 友好和睦的;so that 因此;以便What phenomenon does the passage describe?“global village”as related to the promotion of technological and cultural exchange.What effect does technology have on cultural exchange?your opinionshave a closer relationship shared futureharmonious Try to think about othersQuestionTalk with others.Write your ideas.1.2.3.Thank you!
