Unit 4 Breaking Boundaries Using language 课件-2025-2026学年高中英语外研版（2019）选择性必修第二册

该高中英语课件围绕“Breaking boundaries”主题，聚焦it作形式主语用法，结合跨文化交流与地球村主题展开。课堂从词汇短语学习切入，通过观察句子归纳语法规则，经翻译、改写练习巩固，再通过描述城市、听力活动应用，构建从基础到实践的学习支架。 其亮点在于融合语言能力与文化意识培养，通过多样化练习（如翻译句子、改写表达）提升语言运用，结合地球村主题活动（如北京多元文化描述、听力中食物与语言融合现象）培养跨文化认知。采用讲练结合与情境应用，助力学生提升思维品质，教师使用可高效覆盖语法与文化教学，促进学生综合素养发展。

Unit 4 Breaking boundaries Using language p41-43 Learning objectives By the end of this period,you will be able to use it as an empty subject (it作形式主语） correctly; understand the global village; express interests and phenomena; perceive (感知）intercultural (cross-culture) communication. Read and speak out 1. realistic adj. 2. minority n. 3. cast v&n. 4. inclusive adj. 5. joint adj. 6. harmonious adj. 7. mutual adj 8. rewarding adj. 能实现的 少数派 角色 ；选角 包容的、 联合的 共同的 和谐的 融洽的 共有的 共同的 值得 做的 有意义的 Write out the words or phrases 地理界线 冒险 战友 使......处于危险中 在......帮助下 处理(难题) 悲惨的景象 防止可怕的疾病 为某人换班 尽管困难重重 更不用说 弥补其它不太幸运的案例 和平与繁荣的共享的未来 geography boundaries take any chances comrades in arms put... at risk with the assistance of tackle the problem tragic scenes combat the terrible disease relieve sb./step into one's shoes against all odds not to mention compensate for other less fortunate cases a shared future of peace and prosperity It as an empty subject it作形式主语 Observe the sentences and decide what it refers to: 1.But it vital not to take any chances. 2. ...I felt it was my duty as a doctor to go there and offer my help. 3.It is important to remember that Ebola doesn’t respect national boundaries. 4.It’s so surprising to have colleagues like Wilton, Maisy and Alfonso,... 5. ..., it is absolutely essential for us all to collabotate to create a global community.... 一、 it代替不定式短语 1.常用于下列句型中: It+be+形容词+(for/of sb.) to do sth. It+be+名词+to do sth. It takes sb.some time to do sth. 做……花了某人……时间 It’s up to sb. to do sth. 做……是某人的职责或义务 It is everyone’s duty to obey the law. It is difficult for a foreigner to learn Chinese. it作形式主语时没有具体的意义,只是帮助把真正的主语移到句子后面去,使句子显得平衡一些。it作形式主语时,可以代替三种形式:不定式、动词-ing形式和主语从句。 二、 it代替动词-ing短语 动词-ing形式作主语用后置形式的情况远不及不定式那么普遍,常限于 no good,no use,useless, a waste of 等词的后面。 It is no good/use having a car if you can’t drive. It is a waste of time watching TV. 三、it代替主语从句 这个主语从句可以用连词that引导,也可以用连接代词或连接副词引导。 It was clear that they had no desire for peace. It is doubtful whether she will be able to come. [常见句型] 1.It is a pity/a shame/a fact/an honour/good news/no wonder/ a wonder...that... It was a pity that the engineer couldn’t come. It is a wonder that he continues to gamble though he always loses! It is a shame that the rain spoiled our picnic. 2. It is+形容词(strange/natural/surprising/obvious/true/fortunate/wonderful/funny/ possible/impossible/likely/unlikely/clear/unusual/certain/important...) that... It is certain that he will win. It is important that we should learn from each other and help each other. 3. It happened/turned out/suddenly struck me/occurred to me...that... It happened that I wasn’t there that day. 4. It+be+过去分词(said/reported/announced/decided/expected/hoped/known/believed...)that... It is hoped that the number of deer will greatly increase very soon. It is reported that more than twenty people were dead in that bus accident. 【温馨提示】在It is suggested/required/desired/ordered/proposed...that...的主语从句 中用虚拟语气:(should)+动词原形 It is requested that he give a performance at the party. It is ordered that the radio be sent there at once. 5. It doesn’t matter+连接代词或副词…… It doesn’t matter whether he comes or not. It won’t make much difference whether you go today or tomorrow. Practice :用it作形式主语翻译句子 1.真奇怪,竟然没有人想要去那里。 It is strange that no one wants to go there. 2.很难说将需要多少钱。 It’s hard to say how much money is needed. 3.地球围着太阳转是常识。 It is common knowledge that the earth moves around the sun. 4.这样做是错误的。 It is a mistake to do it in this way. 5.做完那项工作需要艰苦劳动。 It needed hard work to finish the job. 6.他一个人去不可能。 It is impossible for him to go alone. 7.你这样说太好了。 It is kind of you to say so. 8.向他解释没有用。 It is no use explaining it to him. Activity 2 It is no longer quite so difficult for women and minorities to get roles in American film and television. It is now a more realistic hope for minority actors to become a leading actor in Hollywood. It is more common than before for women to write and direct Hollywood films. It is seen as acceptable by film studios to cast white actors as Asian characters. Rewrite the underlined parts using it as an empty subject. Activity 3 Beijing today is multicultural. It is not a surprising thing for students to see different skin colours in the same class. It is possible for people to hear many different languages and dialects. It is easy for people to find products from all over the world. It is not difficult for foreigners to settle down and find a job. It is a common thing for people from different countries to work in the same company. Describe the city using the information provided and it as an empty subject. The global village Activity 5 What phenomenon does the passage describe? What effect does technology have on cultural exchange? 1 It describes the phenomenon of the “global village” . 2 Technology enables us to form close connections with people of completely different cultures and gives us quick and easy access to other cultures and lifestyles. To 责编：此处建议用完整的配图，将图片和文字拆开呈现。老师们可忽略此建议。谢谢！ 16 Activity 6 culture shock form close connections with a joint effort mutual benefits bring people together window on the world be more inclusive Complete the letter with the correct form of the expressions in Activity 5 phrases 选(演员）... 当 cast...as ... 定居 settle down 是...原因 对...负责 be responsible for 使......能够 enable sb to do... 形成密切的联系 form close connections 世界的窗口 a window on the world 克服文化冲突 overcome culture shock 彼此融合 merge into one another 共同努力做... make a joint effort to do 享受互惠互利 enjoy the mutual benefits 引起某人的共鸣 strike a chord with sb 1. Nowadays, people all over the world are becoming more and more connedted, as if the world ___________________（变得越来越小）--as if we ______________(live) in a “global village”. 2. Channels of communication have made ___ possible to speak instantly with someone on the other side of the planet,_______ (enable) us to form close connections with people... 3.The television, meanwhile, is a window on the world, ______(give)us quick and easy access to other cultures and lifestyles. were getting smaller were living it enabling giving Activity 7 More and more foreign words and expressions are entering the English language, especially those about food. Chinese food is popular in the UK, and many Chinese words and expressions are entering English dictionaries as a result. Intercultural communication is increasing, and people all over the world have a better understanding of each other. World sports are bringing people together in the same way that food is. Listen to the conversation and choose the main idea. Activity 8 regional words are making it wonton the food we now find in shops and restaurants all kinds of food a lot of other restaurants Italian, French and Japanese restaurants use chopsticks connecting people people in Britain eating Chinese food pizza while watching the same game Now talk about more examples of each phenomenon. Listen again and complete the table. Activity 9 Really? That’s interesting. Is it really? It is really amazing… I also find it interesting to see…. No wonder it isn’t a surprise to see…. It is not unusual to find… Complete the boxes with the expressions from the conversation. Assignments $