外研版（2019）选择性必修第二册Unit 4 Breaking boundaries Section B Using Language教案
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| 名称 | 外研版（2019）选择性必修第二册Unit 4 Breaking boundaries Section B Using Language教案 |  | |
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| 科目 | 英语 | ||
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Unit 4
Section B Using Language
教学设计
科目：英语 课题：Section B Using Language 课时：1课时
教学目标与核心素养：
知识目标：学生掌握it做形式主语的用法和语法意义
能力目标：学生能够掌握本节课的语法并且完成各项练习
情感目标：培养学生学习语法的兴趣
教学重难点
教学重点：能够熟练运用it作形式主语的用法
教学难点：学生完成各项练习，提高合作能力
课前准备：多媒体，黑板，粉笔
教学过程：
一、Pre-class
1. Greeting
Leading-in
教师带领学生复习本节课的单词和短语
学生活动：完成活动1。
Look at the sentences and answer the questions. Sentence (a) and (c) is from the reading passage.
a But it is vital not to take any chances.
b But not to take any chances is vital.
c It is important to remember that Ebola doesn't respect national boundaries.
d To remember that Ebola doesn't respect national boundaries is important.
What does "it" refer to in sentences (a) and (c)
What is the difference between the sentences in each group Why does the author choose to use sentences (a) and (c) instead of (b) and (d)
Suggested answers:
"It" refers to "not to take any chances" in sentence(a) and "to remember that Ebola doesn't respect national boundaries" in sentence (c).
The first sentences in each group use "it" as an empty subject at the beginning of the sentences. The reason why sentences (a) and (c) are chosen is that the sentences are kept balanced and the key information of the sentences is emphasised.
2、 While-class
一.It 做形式主语：由于主语从句过长，为了避免头重脚轻，常常用it做形式主语，而把主语从句放在句末，常用的主要有以下五种句型：
1.It+be+形容词(clear/obvious/true /nature /surprising /good /wonderful /funny /possible /likely /probable /certain /fortunate)+that的主语从句……：意为“做……是……的。”
例如：It was surprising that she passed the difficult exam.真让人惊讶，她居然通过了这次有难度的考试。
（老师有话说：it为形式主语，真正的主语为that引导的从句→that she passed the difficult exam。）
It is clear that he told a lie.很明显，他撒谎了。
（老师有话说：it为形式主语，真正的主语为that引导的从句→that he told a lie.）
2.It+be+过去分词(said/ reported/ believed/ thought/ expected/ announced/ confirmed)+that从句……：意为“据……。”
例如：It's said that they are opposite-sex twins.听说他们是龙凤胎。
（老师有话说：It为该句的形式主语，真正的主语为that引导的从句。句子中的过去分词是said，其原形为say“说”。Opposite-sex twins“龙凤胎”，另外twins为“双胞胎”。）
3. It+be+名词(a pity/no wonder/an honor/a good idea/a fact/ good news)+that从句……：意为“做……是……的。”
4.It不及物动词(短语）(seem/happen/appear/look/occur/turn out)+that从句……
例如：It happened that they were out that day.碰巧那天他们不在家。
（老师有话说：it为形式主语，真正的主语为that引导的从句。be out“外出”）。
5.It+及物动词(worry/shock)+that从句……
例如：It shocks me that he failed in this exam.他没通过考试，震惊到我了。
（老师有话说：从句用的是一般过去时，说明考试失利这件事发生在过去，it后的谓语动词用的是一般现在时，说明我知道这件事情是现在。it为形式主语，真正的主语为that引导的从句。）
二.注意：
1.如果过去分词是suggested/ordered/required/advised/requested/insisted等表示建议、要求、命令等词时，从句应该用虚拟语气，其谓语动词的结构为→（should）+动词原形。
例如：It's suggested that students (should) make their bed by themselves.人们建议孩子应该自己铺床。
（老师有话说：suggested表示建议，所以后面通常接虚拟语气，其中should可以省略。it为该句的形式主语，真正的主语为that引导的从句。）
2.当表语或宾语也为从句时，不能用it做形式主语。
例如：What moved me is that they lost their life in order to save others.让我感动的是他们为了救别人而献出了自己的生命。
（老师有话说：该句中that引导的从句位于系动词is的后面，为表语从句，所以此时不能that做形式主语。what引导的从句为句子真正的主语，且在该句中位于句首。）
That I come here means that he has invited me.我来这里就表明他已经邀请过我了。
（老师有话说：that引导的从句是句子真正的主语，此时不能用it做形式主语。第二个that引导的句子位于谓语动词mean的后面，充当宾语，属于宾语从句，）
完成练习：
I have studied English for six years.It was difficult for me 1.to remember (remember) new words at first.I tried every means, but it was no use 2.reciting (recite) them over and over again.3.It was very kind of you to offer me some suggestions.It is necessary 4.to understand (understand) its meaning in sentences.It is no wonder 5.that your English is good.It 6.is requested (request) that everyone should master proper methods of learning.7.It was a shame I hadn't asked you for help earlier.I will try my best to improve my English.It is hoped 8.that I will pass the TOEFL and have a chance to study abroad.Thanks for your help.I would be grateful if you could give me a reply soon.
三、After-class
学生活动：学生完成活动3。Describe the city using the information provided and it as an empty subject.
not a surprising thing / students see different skin colours in the same class
possible / people hear many different languages and dialects
easy / people find products from all over the world
not difficult / foreigners settle down and find a job
a common thing / people from different countries work in the same company
Suggested answer:
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.
学生活动：学生完成活动4。
小组讨论：Describe one of the cities using it as an empty subject where appropriate. Do online research if necessary.
Toronto
Shanghai
London
Sydney
四、Summary
老师根据课堂内容，总结课上所学语法。
五、完成本节课的课后练习。
2
Section B Using Language
教学设计
科目：英语 课题：Section B Using Language 课时：1课时
教学目标与核心素养：
知识目标：学生掌握it做形式主语的用法和语法意义
能力目标：学生能够掌握本节课的语法并且完成各项练习
情感目标：培养学生学习语法的兴趣
教学重难点
教学重点：能够熟练运用it作形式主语的用法
教学难点：学生完成各项练习，提高合作能力
课前准备：多媒体，黑板，粉笔
教学过程：
一、Pre-class
1. Greeting
Leading-in
教师带领学生复习本节课的单词和短语
学生活动：完成活动1。
Look at the sentences and answer the questions. Sentence (a) and (c) is from the reading passage.
a But it is vital not to take any chances.
b But not to take any chances is vital.
c It is important to remember that Ebola doesn't respect national boundaries.
d To remember that Ebola doesn't respect national boundaries is important.
What does "it" refer to in sentences (a) and (c)
What is the difference between the sentences in each group Why does the author choose to use sentences (a) and (c) instead of (b) and (d)
Suggested answers:
"It" refers to "not to take any chances" in sentence(a) and "to remember that Ebola doesn't respect national boundaries" in sentence (c).
The first sentences in each group use "it" as an empty subject at the beginning of the sentences. The reason why sentences (a) and (c) are chosen is that the sentences are kept balanced and the key information of the sentences is emphasised.
2、 While-class
一.It 做形式主语：由于主语从句过长，为了避免头重脚轻，常常用it做形式主语，而把主语从句放在句末，常用的主要有以下五种句型：
1.It+be+形容词(clear/obvious/true /nature /surprising /good /wonderful /funny /possible /likely /probable /certain /fortunate)+that的主语从句……：意为“做……是……的。”
例如：It was surprising that she passed the difficult exam.真让人惊讶，她居然通过了这次有难度的考试。
（老师有话说：it为形式主语，真正的主语为that引导的从句→that she passed the difficult exam。）
It is clear that he told a lie.很明显，他撒谎了。
（老师有话说：it为形式主语，真正的主语为that引导的从句→that he told a lie.）
2.It+be+过去分词(said/ reported/ believed/ thought/ expected/ announced/ confirmed)+that从句……：意为“据……。”
例如：It's said that they are opposite-sex twins.听说他们是龙凤胎。
（老师有话说：It为该句的形式主语，真正的主语为that引导的从句。句子中的过去分词是said，其原形为say“说”。Opposite-sex twins“龙凤胎”，另外twins为“双胞胎”。）
3. It+be+名词(a pity/no wonder/an honor/a good idea/a fact/ good news)+that从句……：意为“做……是……的。”
4.It不及物动词(短语）(seem/happen/appear/look/occur/turn out)+that从句……
例如：It happened that they were out that day.碰巧那天他们不在家。
（老师有话说：it为形式主语，真正的主语为that引导的从句。be out“外出”）。
5.It+及物动词(worry/shock)+that从句……
例如：It shocks me that he failed in this exam.他没通过考试，震惊到我了。
（老师有话说：从句用的是一般过去时，说明考试失利这件事发生在过去，it后的谓语动词用的是一般现在时，说明我知道这件事情是现在。it为形式主语，真正的主语为that引导的从句。）
二.注意：
1.如果过去分词是suggested/ordered/required/advised/requested/insisted等表示建议、要求、命令等词时，从句应该用虚拟语气，其谓语动词的结构为→（should）+动词原形。
例如：It's suggested that students (should) make their bed by themselves.人们建议孩子应该自己铺床。
（老师有话说：suggested表示建议，所以后面通常接虚拟语气，其中should可以省略。it为该句的形式主语，真正的主语为that引导的从句。）
2.当表语或宾语也为从句时，不能用it做形式主语。
例如：What moved me is that they lost their life in order to save others.让我感动的是他们为了救别人而献出了自己的生命。
（老师有话说：该句中that引导的从句位于系动词is的后面，为表语从句，所以此时不能that做形式主语。what引导的从句为句子真正的主语，且在该句中位于句首。）
That I come here means that he has invited me.我来这里就表明他已经邀请过我了。
（老师有话说：that引导的从句是句子真正的主语，此时不能用it做形式主语。第二个that引导的句子位于谓语动词mean的后面，充当宾语，属于宾语从句，）
完成练习：
I have studied English for six years.It was difficult for me 1.to remember (remember) new words at first.I tried every means, but it was no use 2.reciting (recite) them over and over again.3.It was very kind of you to offer me some suggestions.It is necessary 4.to understand (understand) its meaning in sentences.It is no wonder 5.that your English is good.It 6.is requested (request) that everyone should master proper methods of learning.7.It was a shame I hadn't asked you for help earlier.I will try my best to improve my English.It is hoped 8.that I will pass the TOEFL and have a chance to study abroad.Thanks for your help.I would be grateful if you could give me a reply soon.
三、After-class
学生活动：学生完成活动3。Describe the city using the information provided and it as an empty subject.
not a surprising thing / students see different skin colours in the same class
possible / people hear many different languages and dialects
easy / people find products from all over the world
not difficult / foreigners settle down and find a job
a common thing / people from different countries work in the same company
Suggested answer:
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.
学生活动：学生完成活动4。
小组讨论：Describe one of the cities using it as an empty subject where appropriate. Do online research if necessary.
Toronto
Shanghai
London
Sydney
四、Summary
老师根据课堂内容，总结课上所学语法。
五、完成本节课的课后练习。
2