外研版（2019） 选择性必修第一册 Unit 5 Revealing Nature Using language 课件(共25张PPT)
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| 名称 | 外研版（2019） 选择性必修第一册 Unit 5 Revealing Nature Using language 课件(共25张PPT) |  | |
| 格式 | pptx | ||
| 文件大小 | 1.8MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 外研版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2023-02-24 20:59:05 | ||
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(共25张PPT)
新外研版选择性必修
Book 1
Using language P53
Unit 5 Revealing nature
Lead-in
根据50页课文内容填空
1.It was a young man who ____ _____(leave) medical school without completing his degree.
2.What’s more, he _____recently ________(receive) a letter from his father predicting that...
3.After Darwin ______ ________(spend) some time in South America, his room on the ship was crowed with samples of the plants and animals he _____ ____________(collect).
had left
had
received
had spent
had collected
Lead-in
根据50页课文内容填空
4.At that time, people believed that all species _____ _________(appear) on Earth at the same time, and ______not __________(change) since.
5.Darwin suspected that the finches ________ ______________(evolve) from a common ancestor, which ______ ___________(arrive) on the islands a long time before.
6.Many people refused to believe that living things, including humans, _______ _________
(evolve) from lower forms of life.
had appeared
had changed
had
evolved
had arrived
had evolved
Presentation
Read and answer:
a Darwin suspected that the finches had evolved
from a common ancestor,...
b Many people refused to believe that living things,
including humans, had evolved from lower
forms of life.
1 In sentence (a), which action happened
first, “suspected” or “evolved from a
common ancestor”
“Evolved from a common ancestor.”
2. In sentence (b), which action happened first,
“refused to believe” or “evolved from lower
forms of life”
“Evolved from lower forms of life.”
Presentation
Read and answer:
a Darwin suspected that the finches had evolved
from a common ancestor,...
b Many people refused to believe that living things,
including humans, had evolved from lower
forms of life.
3. What does the structure had done indicate
It indicates the action happened before a
certain past action.
Summary
Past Perfect
过去完成时
A. 基本结构：助动词 had + 过去分词
When I got to the station, the train had
left.
助动词had
过去分词
Summary
Past Perfect
过去完成时
肯定结构：主语+____ _______
否定结构：主语+_____ ____ _______
被动结构：主语+_____ _____ _______
had done
had not done
had been done
B. 基本用法：
①表示在过去的某一时间或某一动作之前
完成的动作或存在的状态。即“过去的
过去”。例：
Before I could say “thank you”, he had run away.
我还没来得及说谢谢，他就跑开了。
B. 基本用法：
表示从过去某一时间开始，一直延续到过去的另一个时间的动作，常用的时间状语有by then, by the end of +过去时间点, by +过去时间点, by the time, before +过去时间点。例：
By the end of last term, we had learnt 2,000 English words.
到上学期期末为止，我们已经学习了2000个英语单词了
B. 基本用法：
表示愿望、打算等动词，如hope, want, expect, think, mean, suppose, intend, plan等后接从句时，一般用过去完成时表示本打算实现而未实现的愿望和计划。
例：
我原打算今年去度假，可是我走不开。
I had hoped to take a holiday this year but I was not able to get away.
B. 基本用法：
在句型hardly/scarcely...when和no sooner...than中，主句用过去完成时，从句用一般过去时，表示“一……就……”。例：
No sooner had he sat down than the telephone rang.
他一坐下，电话铃就响了。
我刚离开就开始下雨了。
Hardly had I left when it began to rain.
B. 基本用法：
5.在句型This/That/It was the first/second...time that 主语+had done 中，表示“这是......第几次做......”。
Eg: It was the second time that she had seen the film.
这是她第二次看这部电影。
B. 基本用法：
6. 在虚拟语气中常用过去完成时，常见于If only...(要是...就好了）, I wish...句式中，表达过去未实现的愿望或假设。
Eg: If only you had told me that you had a spare ticket for the show.
要是你告诉我， 你有多余的演出票就好了.
Eg: I wish I had studied hard in the middle school.
我多希望我在初中时努力学习了.
Eg: I would have caught the first bus if I had got up earlier.
如果我早点起来，就能赶上早班车了。
随堂随练
1.He said that he ________ (see) you before.
2.By yesterday they ___________ (work) for
six days.
3.When I came to Guangzhou, he ________(be)
there for a long time.
4.By the middle of last month we ________ (live) in Beijing for five years.
5.When she got home her children _______ (sleep).
6.Before they arrived here the film ____already ______ (start).
had seen
had worked
had been
had slept
had lived
had
started
用所给词的适当形式填空。
随堂随练
7. I ____________(intend) to meet him at the airport, but I had an important meeting to attend.
8. Mr Smith_________(die) yesterday. He had
been a good friend of mine.
9. No sooner had he arrived than he _______(go)
away again.
10. It was the third time that he ___________(be)
out of work.
11. He entered the room, __________(turn) on
the light and read an evening paper.
12. If only I ___________________(buy) the
book. There is none in the bookshop.
had intended
died
went
turned
had been
had bought
用所给词的适当形式填空。
Practise what you have learnt.
By the end of last year, he____________ (collect) more than 100 foreign records.
He once_______ (work) as a lecturer, but now he is a manager.
John and Jane __________h(know) each other for a long time before their marriage.
He said that great changes_________ h(take) place in his hometown since 1990.
had collected
worked
had known
had taken
Practise what you have learnt.
He ____l(leave) school three years ago.
I_________ (live) in Beijing for one year.
His brother_________ (be) the conductor of the orchestra for many years.
This was the second time that the musician__________ (tour) Europe.
left
have lived
has been
had toured
Complete the paragraphs with the information from the given sentences.
1 a Natural disasters led to food shortages in the 1960s.
b Yuan Longping began to do research on hybrid rice.
c Yuan Longping developed a better type of rice.
Yuan Longping 1__________ to do research on hybrid rice because natural disasters 2_____________ food shortages in the 1960s. In the end, he 3_____________ a better type of rice.
began
had led to
developed
had made
Complete the paragraphs with the information from the given sentences.
2 a Gregor Mendel chose to study pea plants because their characteristics were easy to control.
b Gregor Mendel made important discoveries about genetics.
c Gregor Mendel died in 1884.
Gregor Mendel 4_______________ study pea plants because their characteristics were easy to control. By the time of his death in 1884, he 5____________ important discoveries about genetics.
chose to
Practice
Complete the paragraphs with the information from the given sentences.
Practice
1. began
2. had led to
3. developed
4. chose to
5. had made
Yuan Long ping was born in Beijing in 1930. After he graduated from university in the early 1950s, he dedicated himself to the research of agriculture.
Yuan had the idea to create a new breed of rice in the 1960s. Since then, he has worked tirelessly to research and develop better rice breed.
In 1973 he and his collaborators managed to cultivate a hybrid rice species that was superior to many others. This species produced 20 per cent more rice per plant than the commonly grown varieties. For his achievements and contributions, Yuan is known as the “father of hybrid rice” and was awarded the Medal of the Republic in 2019.
Gregor Mendel(1822-1884) was an influential botanist. Mendel worked out the basic principles of heredity by experimenting with plants. In 1866, he published his findings, showing how invisible “factors”(now known as genes) are responsible for predictable visible traits.
As a result of his work, he became known as the “father of modern genetics”.
Complete the online encyclopaedia entry with the correct form of the words in the box.
Compete decline eat
Live introduce arrive
had lived
eaten
had introduced
competed
declined
arrived
Lonesome George was the last Pinta Island tortoise. He died in 2012. After George`s death, the Pinta Island tortoise was declared extinct.
The extinction of the Pinta Island tortoise blamed on humans. Before humans 1_________ on the island, the species 2_______________ in isolation and 3_____________ the plants that naturally grew there. George was discovered many years after their arrival, and by then humans 4_______________ new species that 5________________ for the food the tortoises ate. After goats in particular had been brought to the island, the Pinta Island tortoise population 6__________. Eventually, only George remained.
Act out a role-play about George using the information in Activity 3.
Use the past perfect tense where appropriate.
Work in pairs:
the keeper of Lonesome George
the reporter
Thank you!
新外研版选择性必修
Book 1
Using language P53
Unit 5 Revealing nature
Lead-in
根据50页课文内容填空
1.It was a young man who ____ _____(leave) medical school without completing his degree.
2.What’s more, he _____recently ________(receive) a letter from his father predicting that...
3.After Darwin ______ ________(spend) some time in South America, his room on the ship was crowed with samples of the plants and animals he _____ ____________(collect).
had left
had
received
had spent
had collected
Lead-in
根据50页课文内容填空
4.At that time, people believed that all species _____ _________(appear) on Earth at the same time, and ______not __________(change) since.
5.Darwin suspected that the finches ________ ______________(evolve) from a common ancestor, which ______ ___________(arrive) on the islands a long time before.
6.Many people refused to believe that living things, including humans, _______ _________
(evolve) from lower forms of life.
had appeared
had changed
had
evolved
had arrived
had evolved
Presentation
Read and answer:
a Darwin suspected that the finches had evolved
from a common ancestor,...
b Many people refused to believe that living things,
including humans, had evolved from lower
forms of life.
1 In sentence (a), which action happened
first, “suspected” or “evolved from a
common ancestor”
“Evolved from a common ancestor.”
2. In sentence (b), which action happened first,
“refused to believe” or “evolved from lower
forms of life”
“Evolved from lower forms of life.”
Presentation
Read and answer:
a Darwin suspected that the finches had evolved
from a common ancestor,...
b Many people refused to believe that living things,
including humans, had evolved from lower
forms of life.
3. What does the structure had done indicate
It indicates the action happened before a
certain past action.
Summary
Past Perfect
过去完成时
A. 基本结构：助动词 had + 过去分词
When I got to the station, the train had
left.
助动词had
过去分词
Summary
Past Perfect
过去完成时
肯定结构：主语+____ _______
否定结构：主语+_____ ____ _______
被动结构：主语+_____ _____ _______
had done
had not done
had been done
B. 基本用法：
①表示在过去的某一时间或某一动作之前
完成的动作或存在的状态。即“过去的
过去”。例：
Before I could say “thank you”, he had run away.
我还没来得及说谢谢，他就跑开了。
B. 基本用法：
表示从过去某一时间开始，一直延续到过去的另一个时间的动作，常用的时间状语有by then, by the end of +过去时间点, by +过去时间点, by the time, before +过去时间点。例：
By the end of last term, we had learnt 2,000 English words.
到上学期期末为止，我们已经学习了2000个英语单词了
B. 基本用法：
表示愿望、打算等动词，如hope, want, expect, think, mean, suppose, intend, plan等后接从句时，一般用过去完成时表示本打算实现而未实现的愿望和计划。
例：
我原打算今年去度假，可是我走不开。
I had hoped to take a holiday this year but I was not able to get away.
B. 基本用法：
在句型hardly/scarcely...when和no sooner...than中，主句用过去完成时，从句用一般过去时，表示“一……就……”。例：
No sooner had he sat down than the telephone rang.
他一坐下，电话铃就响了。
我刚离开就开始下雨了。
Hardly had I left when it began to rain.
B. 基本用法：
5.在句型This/That/It was the first/second...time that 主语+had done 中，表示“这是......第几次做......”。
Eg: It was the second time that she had seen the film.
这是她第二次看这部电影。
B. 基本用法：
6. 在虚拟语气中常用过去完成时，常见于If only...(要是...就好了）, I wish...句式中，表达过去未实现的愿望或假设。
Eg: If only you had told me that you had a spare ticket for the show.
要是你告诉我， 你有多余的演出票就好了.
Eg: I wish I had studied hard in the middle school.
我多希望我在初中时努力学习了.
Eg: I would have caught the first bus if I had got up earlier.
如果我早点起来，就能赶上早班车了。
随堂随练
1.He said that he ________ (see) you before.
2.By yesterday they ___________ (work) for
six days.
3.When I came to Guangzhou, he ________(be)
there for a long time.
4.By the middle of last month we ________ (live) in Beijing for five years.
5.When she got home her children _______ (sleep).
6.Before they arrived here the film ____already ______ (start).
had seen
had worked
had been
had slept
had lived
had
started
用所给词的适当形式填空。
随堂随练
7. I ____________(intend) to meet him at the airport, but I had an important meeting to attend.
8. Mr Smith_________(die) yesterday. He had
been a good friend of mine.
9. No sooner had he arrived than he _______(go)
away again.
10. It was the third time that he ___________(be)
out of work.
11. He entered the room, __________(turn) on
the light and read an evening paper.
12. If only I ___________________(buy) the
book. There is none in the bookshop.
had intended
died
went
turned
had been
had bought
用所给词的适当形式填空。
Practise what you have learnt.
By the end of last year, he____________ (collect) more than 100 foreign records.
He once_______ (work) as a lecturer, but now he is a manager.
John and Jane __________h(know) each other for a long time before their marriage.
He said that great changes_________ h(take) place in his hometown since 1990.
had collected
worked
had known
had taken
Practise what you have learnt.
He ____l(leave) school three years ago.
I_________ (live) in Beijing for one year.
His brother_________ (be) the conductor of the orchestra for many years.
This was the second time that the musician__________ (tour) Europe.
left
have lived
has been
had toured
Complete the paragraphs with the information from the given sentences.
1 a Natural disasters led to food shortages in the 1960s.
b Yuan Longping began to do research on hybrid rice.
c Yuan Longping developed a better type of rice.
Yuan Longping 1__________ to do research on hybrid rice because natural disasters 2_____________ food shortages in the 1960s. In the end, he 3_____________ a better type of rice.
began
had led to
developed
had made
Complete the paragraphs with the information from the given sentences.
2 a Gregor Mendel chose to study pea plants because their characteristics were easy to control.
b Gregor Mendel made important discoveries about genetics.
c Gregor Mendel died in 1884.
Gregor Mendel 4_______________ study pea plants because their characteristics were easy to control. By the time of his death in 1884, he 5____________ important discoveries about genetics.
chose to
Practice
Complete the paragraphs with the information from the given sentences.
Practice
1. began
2. had led to
3. developed
4. chose to
5. had made
Yuan Long ping was born in Beijing in 1930. After he graduated from university in the early 1950s, he dedicated himself to the research of agriculture.
Yuan had the idea to create a new breed of rice in the 1960s. Since then, he has worked tirelessly to research and develop better rice breed.
In 1973 he and his collaborators managed to cultivate a hybrid rice species that was superior to many others. This species produced 20 per cent more rice per plant than the commonly grown varieties. For his achievements and contributions, Yuan is known as the “father of hybrid rice” and was awarded the Medal of the Republic in 2019.
Gregor Mendel(1822-1884) was an influential botanist. Mendel worked out the basic principles of heredity by experimenting with plants. In 1866, he published his findings, showing how invisible “factors”(now known as genes) are responsible for predictable visible traits.
As a result of his work, he became known as the “father of modern genetics”.
Complete the online encyclopaedia entry with the correct form of the words in the box.
Compete decline eat
Live introduce arrive
had lived
eaten
had introduced
competed
declined
arrived
Lonesome George was the last Pinta Island tortoise. He died in 2012. After George`s death, the Pinta Island tortoise was declared extinct.
The extinction of the Pinta Island tortoise blamed on humans. Before humans 1_________ on the island, the species 2_______________ in isolation and 3_____________ the plants that naturally grew there. George was discovered many years after their arrival, and by then humans 4_______________ new species that 5________________ for the food the tortoises ate. After goats in particular had been brought to the island, the Pinta Island tortoise population 6__________. Eventually, only George remained.
Act out a role-play about George using the information in Activity 3.
Use the past perfect tense where appropriate.
Work in pairs:
the keeper of Lonesome George
the reporter
Thank you!