外研版（2019）必修第二册 Unit4Stage and screen Using language知识点课件（16张ppt)
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| 名称 | 外研版（2019）必修第二册 Unit4Stage and screen Using language知识点课件（16张ppt) |  | |
| 格式 | pptx | ||
| 文件大小 | 493.4KB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 外研版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2023-02-27 14:25:04 | ||
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(共16张PPT)
Unit 4 Using language
It as an empty subject
it 充当形式主语，可以替代以下三种情况 :
1. 主语从句 （subject clause）
2. 动词不定式 （infinitive）
3. 动名词 （gerund）
要 点 突 破
（1） “It + be + 形容词 + that从句”，可用于此句型的形容词有wonderful、important、true、clear、obvious、surprising、certain、necessary、essential等。需要注意的是，如果形容词是important、essential等词的时候，从句常用 “should + 动词原形”的形式，should可以省略。
一、It做形式主语替代主语从句
①可以确定的是他会出席会议。
________________________he will be present at the conference.
②很重要的是，我们要三思后再做决定。
_____________________ we should think twice before we decide.
It is certain that
It is essential that
（2） “It + be + 名词（短语）+ that从句”，可用于此句型的名词有a pity、an honour、a good thing、a surprise、a fact等
一、It做形式主语替代主语从句
①很遗憾你错过了昨天的精彩比赛。
______________________you missed the wonderful match yesterday.
②很荣幸，我能被邀请在开幕式上发言。
_____________________ I'm invited to speak at the conference.
It is a pity that
It is an honour that
（3） “It + be + 过去分词+ that从句”，可用于此句型的过去分词有believed、hoped、reported、said、shown、announced、expected等；
一、It做形式主语替代主语从句
①据报道，他因为反抗政府行为而被逮捕入狱。
_________________he was arrested because of anti-government behaviours.
②人们长期以来相信滋补食物对健康有益。
_____________________ for along time that tonic food contributes to health.
It is reported that
It has been believed
（1） It is kind/brave/honest/foolish of sb to do sth.不定式的逻辑主语是由of引出的，句中形容词表示主语的特征、品质等；
二、It做形式主语替代不定式
①医生们挽救感染冠状病毒的病人真是很勇敢。
_________________________to save patients infected with conoravirus.
②你多向老师寻求帮助是明智的。
____________________to turn to the doctors for help.
It is brave of the doctors
It is wise of you
（2） It is necessary/vital/important for sb to do sth.不定式的逻辑主语是由for引出的，句中形容词通常表示重要性、紧迫性、频繁程度等情况；
二、It做形式主语替代不定式
对于这些城市内的动物适应很重要。
It is important for the animal in the city to adapt.
（2） “It + be + 名词或形容词 + 动名词”句式中，这类中的名词和形容词常常是no good、no use、useless、a waste of time、senseless等；
三、It做形式主语替代动名词
①和Shylock争论是没有用的。
It is no use/useless arguing with Shylock.
②抱怨仅仅是浪费时间。
It is simply a waste of time complaining.
将下列句子改写成带it的句子
1．To give up smoking is not easy.
→______________________________________________________
2．That her hair was turning grey worried her a lot.
→______________________________________________________
3．That she should have married a farmer is surprising.
→______________________________________________________
4．Debating about it is useless.
→______________________________________________________
5．When and where to hold the match hasn't been decided.
→______________________________________________________
答案
1.It is not easy to give up smoking.
2.It worried her a lot that her hair was turning grey.
3.It is surprising that she should have married a farmer.
4.It is useless debating about it.
5.It hasn't been decided when and where to hold the match.
6．To keep order in an important football match is a hard job for the police.
→______________________________________________________
7．Two thirds of the students are said to have passed the exam in our class.
→______________________________________________________
8．A fire is reported to have broken out this morning.
→______________________________________________________
9．They seemed to be quarrelling about something.
→______________________________________________________
10．I happened to be away on business when he came to visit me.
→______________________________________________________
答案
6.It is a hard job for the police to keep order in an important football match.
7.It is said that two thirds of the students passed the exam in our class.
8.It is reported that a fire broke out this morning.
9.It seemed that they were quarrelling about something.
10.It happened that I was away on business when he came to visit me.
完成句子
1．________________________ what you do.
对我来说你做什么没关系。
2．________________ lying in the sun in winter.
冬季里躺在阳光下真是令人愉悦。
3．________________ he once worked in a factory.
据说他曾经在一家工厂工作。
4．________________ persuading him again.
再劝他也没有任何用处。
It doesn't matter to me
It is fun
It is said that
It is useless
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.
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.
Thanks a lot.
Unit 4 Using language
It as an empty subject
it 充当形式主语，可以替代以下三种情况 :
1. 主语从句 （subject clause）
2. 动词不定式 （infinitive）
3. 动名词 （gerund）
要 点 突 破
（1） “It + be + 形容词 + that从句”，可用于此句型的形容词有wonderful、important、true、clear、obvious、surprising、certain、necessary、essential等。需要注意的是，如果形容词是important、essential等词的时候，从句常用 “should + 动词原形”的形式，should可以省略。
一、It做形式主语替代主语从句
①可以确定的是他会出席会议。
________________________he will be present at the conference.
②很重要的是，我们要三思后再做决定。
_____________________ we should think twice before we decide.
It is certain that
It is essential that
（2） “It + be + 名词（短语）+ that从句”，可用于此句型的名词有a pity、an honour、a good thing、a surprise、a fact等
一、It做形式主语替代主语从句
①很遗憾你错过了昨天的精彩比赛。
______________________you missed the wonderful match yesterday.
②很荣幸，我能被邀请在开幕式上发言。
_____________________ I'm invited to speak at the conference.
It is a pity that
It is an honour that
（3） “It + be + 过去分词+ that从句”，可用于此句型的过去分词有believed、hoped、reported、said、shown、announced、expected等；
一、It做形式主语替代主语从句
①据报道，他因为反抗政府行为而被逮捕入狱。
_________________he was arrested because of anti-government behaviours.
②人们长期以来相信滋补食物对健康有益。
_____________________ for along time that tonic food contributes to health.
It is reported that
It has been believed
（1） It is kind/brave/honest/foolish of sb to do sth.不定式的逻辑主语是由of引出的，句中形容词表示主语的特征、品质等；
二、It做形式主语替代不定式
①医生们挽救感染冠状病毒的病人真是很勇敢。
_________________________to save patients infected with conoravirus.
②你多向老师寻求帮助是明智的。
____________________to turn to the doctors for help.
It is brave of the doctors
It is wise of you
（2） It is necessary/vital/important for sb to do sth.不定式的逻辑主语是由for引出的，句中形容词通常表示重要性、紧迫性、频繁程度等情况；
二、It做形式主语替代不定式
对于这些城市内的动物适应很重要。
It is important for the animal in the city to adapt.
（2） “It + be + 名词或形容词 + 动名词”句式中，这类中的名词和形容词常常是no good、no use、useless、a waste of time、senseless等；
三、It做形式主语替代动名词
①和Shylock争论是没有用的。
It is no use/useless arguing with Shylock.
②抱怨仅仅是浪费时间。
It is simply a waste of time complaining.
将下列句子改写成带it的句子
1．To give up smoking is not easy.
→______________________________________________________
2．That her hair was turning grey worried her a lot.
→______________________________________________________
3．That she should have married a farmer is surprising.
→______________________________________________________
4．Debating about it is useless.
→______________________________________________________
5．When and where to hold the match hasn't been decided.
→______________________________________________________
答案
1.It is not easy to give up smoking.
2.It worried her a lot that her hair was turning grey.
3.It is surprising that she should have married a farmer.
4.It is useless debating about it.
5.It hasn't been decided when and where to hold the match.
6．To keep order in an important football match is a hard job for the police.
→______________________________________________________
7．Two thirds of the students are said to have passed the exam in our class.
→______________________________________________________
8．A fire is reported to have broken out this morning.
→______________________________________________________
9．They seemed to be quarrelling about something.
→______________________________________________________
10．I happened to be away on business when he came to visit me.
→______________________________________________________
答案
6.It is a hard job for the police to keep order in an important football match.
7.It is said that two thirds of the students passed the exam in our class.
8.It is reported that a fire broke out this morning.
9.It seemed that they were quarrelling about something.
10.It happened that I was away on business when he came to visit me.
完成句子
1．________________________ what you do.
对我来说你做什么没关系。
2．________________ lying in the sun in winter.
冬季里躺在阳光下真是令人愉悦。
3．________________ he once worked in a factory.
据说他曾经在一家工厂工作。
4．________________ persuading him again.
再劝他也没有任何用处。
It doesn't matter to me
It is fun
It is said that
It is useless
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.
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.
Thanks a lot.