人教版（2019）选择性必修 第二册Unit 1 Science and Scientists Discover Useful Structures课件(共30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 Discover Useful Structures课件(共30张PPT) |  | |
| 格式 | pptx | ||
| 文件大小 | 3.5MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 人教版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2025-03-05 09:54:23 | ||
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(共30张PPT)
Unit 1 Science and Scientists
Discover useful structures
Learning objectives
In this class, you will
1. identify and summarize the form of the predicative
clause;
2. get to know the meaning of the predicative clause;
3. use the predicative clause to talk about science and scientists.
Review
Review
What kind of person is John Snow
John Snow is smart.
John Snow is determined.
John Snow is committed.
…
1. John Snow is determined.
2. One theory was that bad air caused the disease.
predicative (表语)
predicative clause (表语从句)
SP 主(系)表
SP 主(系)表
Warm up
It seems that science is all around us.
Understanding science and pushing the boundaries of
science is what makes me satisfied.
Find and underline the predicative clauses.
Linking verbs
状态类：be 动词, seem, appear, keep, remain, stay …
感官类：look, smell, taste, sound, feel …
变化类：become, get, turn, grow, fall, come, go …
Summary 1
Activity 1: Underline all the predicative clauses in the reading passage.
Para. 2
In general, doctors in those days had two contradictory theories … One theory was that bad air caused the disease. Another was that cholera was caused by an infection from germs in food or water. …
……空气污染引发霍乱。
……食物或饮用水中的细菌感染导致霍乱。
Activity 1: Underline all the predicative clauses in the reading passage.
Para. 3
… What is more, in another part of London, a woman and her daughter had died of cholera after moving away from Broad Street. It seemed that the woman liked the water from the pump so much that she had it delivered to her house every day.
该女士似乎非常喜欢从水泵抽上来的水，每天都让人从那里打水运到家里来。
Activity 1: Underline all the predicative clauses in the reading passage.
Para. 4
The truth was that the water from the Broad Street pump had been infected by waste. Moreover, Snow was later able to show a link between other cases of cholera and the different water companies in London. …
……宽街水泵抽上来的水被废弃物污染了。
Activity 2: Answer the following questions using the information from the reading passage as well as the predicative clauses.
Example
What was it that John Snow showed to the world
What John Snow showed to the world was
__________________________.
how cholera could be overcome
how 意思为“如何”，在表语从句中充当状语
Activity 2: Answer the following questions using the information from the reading passage as well as the predicative clauses.
1. What was Snow’s discovery in two particular streets in
London
Snow’s discovery in two particular streets in London was
_____________________________________________
_____________________________________________
that the cholera outbreak was so severe that more than 500 people died in ten days.
that 无意义，在表语从句中不充当成分, 起连接作用，不能省略
Activity 2: Answer the following questions using the information from the reading passage as well as the predicative clauses.
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 outbreak of cholera had caused over
500 deaths within ten days.
why 意思为“……的原因”，
在表语从句中充当状语
Activity 2: Answer the following questions using the information from the reading passage as well as the predicative clauses.
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.
where 意思为“……的地点”，
在表语从句中充当状语
Activity 2: Answer the following questions using the information from the reading passage as well as the predicative clauses.
4. What was the finding that Snow announced
Snow’s finding was
____________________________________
that the pump water carried cholera germs.
that 无意义，在表语从句中不充当成分, 起连接作用，不能省略
1. What John Snow showed to the world was how cholera could
be overcome.
2. The exact places Snow marked on the map were where all
those who died had lived.
3. Snow’s finding was that the pump water carried cholera germs.
Summary 2
引导词在表语从句 中充当的成分 引导词 备注
主语 who, what, which …
根据
句意
选择
宾语 whom, who, what, which … 表语 whom, who, what, which 定语 whose, what, which 状语 when, where, why, how 不充当成分 that, whether, as if, as though, because Activity 3: Complete David’s lines (A-E), using the words in the box.
as if that what who when
how why whose which whether
A Absolutely. You may not believe it, but that was _____
happened at the initial stage of our group’s research on
developing a vaccine for malaria.
what
B Yes, it is. And it seemed _____ all the theories were useful,
but the fact was _____ we couldn’t persuade one another
that one theory was better than another.
C Exactly. The problem was not about ________ all our
theories were equally good, but in deciding
________________ theory to depend upon.
as if
that
whether
which/what/whose
as if that what who when
how why whose which whether
D We realised that what we cared about was not _________
aspect we needed to develop a theory in, but rather _____
we can reduce the cost of a vaccine without reducing its
effect!
E You’re right. At last, we became focused on the key issue,
which was _______ we had to carry out the research in the
first place.
which/what
how
why
as if that what who when
how why whose which whether
Activity 3 : Put David’s lines in the correct order and practise the conversation.
Maria: This mix of theory and data is one of the key
characteristics of what we call science.
David: ________________________________________
A
(Absolutely. You may not believe it, but that was what happened at the initial stage of our group’s research on developing a vaccine for malaria.)
Activity 3 : Put David’s lines in the correct order and practise the conversation.
Maria: With your theoretical framework
David: ________________________________________
C
(Exactly. The problem was not about whether all our theories were equally good, but in deciding which/what/whose theory to depend upon.)
Activity 3 : Put David’s lines in the correct order and practise the conversation.
Maria: Deciding on a theory is definitely of critical
importance.
David: ________________________________________
B
(Yes, it is. And it seemed as if all the theories were useful, but the fact was that we couldn’t persuade one another that one theory was better than another.)
Activity 3 : Put David’s lines in the correct order and practise the conversation.
Maria: This was when you should have calmed down and
got down to doing some solid work.
David: ________________________________________
E
(You’re right. At last, we became focused on the key issue, which was why we had to carry out the research in the first place.)
Activity 3 : Put David’s lines in the correct order and practise the conversation.
Maria: So what happened in the end
David: ________________________________________
D
(We realised that what we cared about was not which/what aspect we needed to develop a theory in, but rather how we can reduce the cost of a vaccine without reducing its effect!)
Activity 4 : Fill in each blank with a word
or expression that introduces a predicative clause. (page 10)
Activity 4 : Fill in each blank with a word
or expression that introduces a predicative clause. (page 10)
What is the passage about
It is about science and scientist.
Science is simply _______ you can do. And doing science makes you a scientist! So, what do scientists do Actually, what matters is not only _______ they observe in the world around them and what questions they ask, but also _______ they use evidence or data to answer the questions. They identify useful data and take new measurements. Some of the key issues that scientists face are _______ calculations
what
how
what
what
they do and _______ they analyse their data to draw conclusions about the questions they ask. The final issue, which many believe to be the most important, is _______ they need to communicate their results. This is _______ they want everyone to benefit from their work! It seems _______ science is all around us. You see, by doing science, scientists get a better understanding of the world around them and share that understanding with the whole world.
how
why
because
that
Homework
1. Finish Activity 1 on page 62.
2. Finish Activity 2 on page 62.
Unit 1 Science and Scientists
Discover useful structures
Learning objectives
In this class, you will
1. identify and summarize the form of the predicative
clause;
2. get to know the meaning of the predicative clause;
3. use the predicative clause to talk about science and scientists.
Review
Review
What kind of person is John Snow
John Snow is smart.
John Snow is determined.
John Snow is committed.
…
1. John Snow is determined.
2. One theory was that bad air caused the disease.
predicative (表语)
predicative clause (表语从句)
SP 主(系)表
SP 主(系)表
Warm up
It seems that science is all around us.
Understanding science and pushing the boundaries of
science is what makes me satisfied.
Find and underline the predicative clauses.
Linking verbs
状态类：be 动词, seem, appear, keep, remain, stay …
感官类：look, smell, taste, sound, feel …
变化类：become, get, turn, grow, fall, come, go …
Summary 1
Activity 1: Underline all the predicative clauses in the reading passage.
Para. 2
In general, doctors in those days had two contradictory theories … One theory was that bad air caused the disease. Another was that cholera was caused by an infection from germs in food or water. …
……空气污染引发霍乱。
……食物或饮用水中的细菌感染导致霍乱。
Activity 1: Underline all the predicative clauses in the reading passage.
Para. 3
… What is more, in another part of London, a woman and her daughter had died of cholera after moving away from Broad Street. It seemed that the woman liked the water from the pump so much that she had it delivered to her house every day.
该女士似乎非常喜欢从水泵抽上来的水，每天都让人从那里打水运到家里来。
Activity 1: Underline all the predicative clauses in the reading passage.
Para. 4
The truth was that the water from the Broad Street pump had been infected by waste. Moreover, Snow was later able to show a link between other cases of cholera and the different water companies in London. …
……宽街水泵抽上来的水被废弃物污染了。
Activity 2: Answer the following questions using the information from the reading passage as well as the predicative clauses.
Example
What was it that John Snow showed to the world
What John Snow showed to the world was
__________________________.
how cholera could be overcome
how 意思为“如何”，在表语从句中充当状语
Activity 2: Answer the following questions using the information from the reading passage as well as the predicative clauses.
1. What was Snow’s discovery in two particular streets in
London
Snow’s discovery in two particular streets in London was
_____________________________________________
_____________________________________________
that the cholera outbreak was so severe that more than 500 people died in ten days.
that 无意义，在表语从句中不充当成分, 起连接作用，不能省略
Activity 2: Answer the following questions using the information from the reading passage as well as the predicative clauses.
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 outbreak of cholera had caused over
500 deaths within ten days.
why 意思为“……的原因”，
在表语从句中充当状语
Activity 2: Answer the following questions using the information from the reading passage as well as the predicative clauses.
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.
where 意思为“……的地点”，
在表语从句中充当状语
Activity 2: Answer the following questions using the information from the reading passage as well as the predicative clauses.
4. What was the finding that Snow announced
Snow’s finding was
____________________________________
that the pump water carried cholera germs.
that 无意义，在表语从句中不充当成分, 起连接作用，不能省略
1. What John Snow showed to the world was how cholera could
be overcome.
2. The exact places Snow marked on the map were where all
those who died had lived.
3. Snow’s finding was that the pump water carried cholera germs.
Summary 2
引导词在表语从句 中充当的成分 引导词 备注
主语 who, what, which …
根据
句意
选择
宾语 whom, who, what, which … 表语 whom, who, what, which 定语 whose, what, which 状语 when, where, why, how 不充当成分 that, whether, as if, as though, because Activity 3: Complete David’s lines (A-E), using the words in the box.
as if that what who when
how why whose which whether
A Absolutely. You may not believe it, but that was _____
happened at the initial stage of our group’s research on
developing a vaccine for malaria.
what
B Yes, it is. And it seemed _____ all the theories were useful,
but the fact was _____ we couldn’t persuade one another
that one theory was better than another.
C Exactly. The problem was not about ________ all our
theories were equally good, but in deciding
________________ theory to depend upon.
as if
that
whether
which/what/whose
as if that what who when
how why whose which whether
D We realised that what we cared about was not _________
aspect we needed to develop a theory in, but rather _____
we can reduce the cost of a vaccine without reducing its
effect!
E You’re right. At last, we became focused on the key issue,
which was _______ we had to carry out the research in the
first place.
which/what
how
why
as if that what who when
how why whose which whether
Activity 3 : Put David’s lines in the correct order and practise the conversation.
Maria: This mix of theory and data is one of the key
characteristics of what we call science.
David: ________________________________________
A
(Absolutely. You may not believe it, but that was what happened at the initial stage of our group’s research on developing a vaccine for malaria.)
Activity 3 : Put David’s lines in the correct order and practise the conversation.
Maria: With your theoretical framework
David: ________________________________________
C
(Exactly. The problem was not about whether all our theories were equally good, but in deciding which/what/whose theory to depend upon.)
Activity 3 : Put David’s lines in the correct order and practise the conversation.
Maria: Deciding on a theory is definitely of critical
importance.
David: ________________________________________
B
(Yes, it is. And it seemed as if all the theories were useful, but the fact was that we couldn’t persuade one another that one theory was better than another.)
Activity 3 : Put David’s lines in the correct order and practise the conversation.
Maria: This was when you should have calmed down and
got down to doing some solid work.
David: ________________________________________
E
(You’re right. At last, we became focused on the key issue, which was why we had to carry out the research in the first place.)
Activity 3 : Put David’s lines in the correct order and practise the conversation.
Maria: So what happened in the end
David: ________________________________________
D
(We realised that what we cared about was not which/what aspect we needed to develop a theory in, but rather how we can reduce the cost of a vaccine without reducing its effect!)
Activity 4 : Fill in each blank with a word
or expression that introduces a predicative clause. (page 10)
Activity 4 : Fill in each blank with a word
or expression that introduces a predicative clause. (page 10)
What is the passage about
It is about science and scientist.
Science is simply _______ you can do. And doing science makes you a scientist! So, what do scientists do Actually, what matters is not only _______ they observe in the world around them and what questions they ask, but also _______ they use evidence or data to answer the questions. They identify useful data and take new measurements. Some of the key issues that scientists face are _______ calculations
what
how
what
what
they do and _______ they analyse their data to draw conclusions about the questions they ask. The final issue, which many believe to be the most important, is _______ they need to communicate their results. This is _______ they want everyone to benefit from their work! It seems _______ science is all around us. You see, by doing science, scientists get a better understanding of the world around them and share that understanding with the whole world.
how
why
because
that
Homework
1. Finish Activity 1 on page 62.
2. Finish Activity 2 on page 62.