人教版（2019）选择性必修第二册 unit 1 Science and Scientists Discovering Useful Structures课件(共12张PPT)
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| 名称 | 人教版（2019）选择性必修第二册 unit 1 Science and Scientists Discovering Useful Structures课件(共12张PPT) |  | |
| 格式 | pptx | ||
| 文件大小 | 2.3MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 人教版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2023-06-13 15:06:53 | ||
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(共12张PPT)
Science and Scientists
Discovering Useful Structures
Unit 1
Noun clause: predicative clause
Underline all the examples in the reading passage where noun clauses are used as the predicative. Then state their functions.
that引导的从句在句中作表语
1. One theory was that bad air caused the disease.
2. Another was that cholera was caused by an infection from germs in food or water.
3. The truth was that the water from the Broad Street pump had been infected by waste.
Lead-in
Answer the following questions using the information from the reading passage as well as the predicative clauses.
What was it that John Snow showed to the world
What John Snow showed to the world was how cholera could be overcome.
1. What was Snow’s discovery in two particular streets in London
Snow’s discovery in two particular streets in London was that in two particular streets the cholera was so severe that more than 500 people died in ten days.
2.What was Snow determined to find out during the 1854 outbreak of cholera in London
What Snow was determined to find out was why the 1854 outbreak of cholera in London could have caused over 500 deaths in ten days.
3.What were the exact places Snow marked on the map
The exact places Snow marked on the map were where all those who died had lived.
4.What was the finding that Snow announced
Snow’s finding was that the pump water carried cholera germs.
在主从复合句中充当表语的从句，叫作表语从句。它常位于系动词之后，用来说明主语是什么或怎么样，一般用陈述句语序。
Learn predicative clauses
表语从句的连接词
连词：that, whether（不能用if）, because
连接代词：who, whoever, what, whatever, which
连接副词：when, where, how, why
The fact is that the earth is round.
事实是地球是圆的。
What I want to know is whether she will win the prize.
我想知道她能否获奖。
The question is who is in charge of turning off the lights.
问题是谁负责关灯。
The key is how we can solve the problem.
关键是我们如何解决问题。
连接词的用法
1. that与what引导表语从句:
that只起连接作用，在表语从句中不充当任何成分,无意义, 不可省略；
what 既起连接作用, 又在表语从句中作主语, 宾语, 表语。
The trouble is that she has lost his address.
This is what I want to tell you.
2. whether是否，引导表语从句，常与or not 连用，不可用if代替。
My question is whether we can meet again in ten years.
表语从句固定句式
The fact is that... 事实是……
His suggestion is that… 他的建议是……
The truth is that… 真相是……
My view/opinion is that… 我的看法是……
The chance is that…/Chances are that…可能……
The reason why…is that… 某人做……的原因是……
What is well-known is that… 众所周知……
完成句子
1. My question is ________________________________.
我的问题是我们能否按时完成那项任务。
2. _______________ we may be caught in heavy traffic in the rush hours.
在交通高峰时间，我们可能会遇到交通阻塞。
whether we can finish the task on time
The chance is that
Homework
Go over what we have learnt.
Finish the Exercises in this unit on workbook.
THANK YOU
Science and Scientists
Discovering Useful Structures
Unit 1
Noun clause: predicative clause
Underline all the examples in the reading passage where noun clauses are used as the predicative. Then state their functions.
that引导的从句在句中作表语
1. One theory was that bad air caused the disease.
2. Another was that cholera was caused by an infection from germs in food or water.
3. The truth was that the water from the Broad Street pump had been infected by waste.
Lead-in
Answer the following questions using the information from the reading passage as well as the predicative clauses.
What was it that John Snow showed to the world
What John Snow showed to the world was how cholera could be overcome.
1. What was Snow’s discovery in two particular streets in London
Snow’s discovery in two particular streets in London was that in two particular streets the cholera was so severe that more than 500 people died in ten days.
2.What was Snow determined to find out during the 1854 outbreak of cholera in London
What Snow was determined to find out was why the 1854 outbreak of cholera in London could have caused over 500 deaths in ten days.
3.What were the exact places Snow marked on the map
The exact places Snow marked on the map were where all those who died had lived.
4.What was the finding that Snow announced
Snow’s finding was that the pump water carried cholera germs.
在主从复合句中充当表语的从句，叫作表语从句。它常位于系动词之后，用来说明主语是什么或怎么样，一般用陈述句语序。
Learn predicative clauses
表语从句的连接词
连词：that, whether（不能用if）, because
连接代词：who, whoever, what, whatever, which
连接副词：when, where, how, why
The fact is that the earth is round.
事实是地球是圆的。
What I want to know is whether she will win the prize.
我想知道她能否获奖。
The question is who is in charge of turning off the lights.
问题是谁负责关灯。
The key is how we can solve the problem.
关键是我们如何解决问题。
连接词的用法
1. that与what引导表语从句:
that只起连接作用，在表语从句中不充当任何成分,无意义, 不可省略；
what 既起连接作用, 又在表语从句中作主语, 宾语, 表语。
The trouble is that she has lost his address.
This is what I want to tell you.
2. whether是否，引导表语从句，常与or not 连用，不可用if代替。
My question is whether we can meet again in ten years.
表语从句固定句式
The fact is that... 事实是……
His suggestion is that… 他的建议是……
The truth is that… 真相是……
My view/opinion is that… 我的看法是……
The chance is that…/Chances are that…可能……
The reason why…is that… 某人做……的原因是……
What is well-known is that… 众所周知……
完成句子
1. My question is ________________________________.
我的问题是我们能否按时完成那项任务。
2. _______________ we may be caught in heavy traffic in the rush hours.
在交通高峰时间，我们可能会遇到交通阻塞。
whether we can finish the task on time
The chance is that
Homework
Go over what we have learnt.
Finish the Exercises in this unit on workbook.
THANK YOU