UNIT 9 HUMAN BIOLOGY LESSON 1To Clone or Not to Clone课件2-高中英语北师大版（2019）选择性必修第三册（共34张PPT）
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| 名称 | UNIT 9 HUMAN BIOLOGY LESSON 1To Clone or Not to Clone课件2-高中英语北师大版（2019）选择性必修第三册（共34张PPT） |  | |
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| 资源类型 | 教案 | ||
| 版本资源 | 北师大版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2025-04-03 22:11:32 | ||
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(共34张PPT)
LESSON 1 TO CLONE OR NOT TO CLONE
UNIT 9 HUMAN BIOLOGY
LEARNING OBJECTIVES
To read and talk about cloning;
To notice and discuss how a writer organises writing;
To analyse a writer's intentions and opinions;
To compare personal opinions with the ideas of others;
To read for specific information to understand words in context;
To recall and summarise information;
To learn and practise using verbs in the perfect tense.
KEY POINTS AND DIFFICULT POINTS
To answer the comprehension questions;
To understand and discuss cloning;
To analyse a writer's intentions and opinions;
To learn words and expressions in context;
To struggle with complicated sentence structures;
To think critically and express opinions freely.
LEADING IN
What do you know about the perfect
He had been mentioning your name to me.
As soon as we got to the station, the train had left.
The experiment has been done successfully.
We have been seeing quite a lot of each other recently.
By the end of last month, we had reviewed four books.
He has been saying that for years.
George has met that gentleman on several occasions.
I had been looking for it for days before I found it.
FOCUS ON LANGUAGE: THE PERFECT
Identify the tense of the sentences and write the number in the correct columns.
1. Natural cloning has been going on for generations.
2. Gardeners have been using a form of cloning when they take a cutting from a plant ...
3. For years, there had been attempts to clone animals.
4. Cloning primates has proved to be "much harder" than cloning other species.
5. Dr. Sun Qiang said they had been wholly devoted to the research ...
6. Dr. Sun Qiang said they had been taking care of more than 1,000 monkeys 24 hours a day, 7 days a week ...
FOCUS ON LANGUAGE: THE PERFECT
Identify the tense of the sentences and write the number in the correct columns.
Present perfect Present perfect continuous Past perfect Past perfect
continuous
4
1, 2
3, 5
6
have / has done
have / has been doing
had done
had been doing
FOCUS ON LANGUAGE: THE PERFECT
Complete the passage with the proper form of the words in brackets.
On Thursday, the Institute of Neuroscience announced it 1. _____________ (clone) two monkeys using non-reproductive cells. It is reported that researchers all around the world 2. __________________________ (conduct) tests on animals, such as mice and dogs, for many years but couldn’t find a way to clone monkeys. The news of the successful cloning 3.
had cloned
have been conducting
FOCUS ON LANGUAGE: THE PERFECT
Complete the passage with the proper form of the words in brackets.
_________________ (attract) attention from around the world. However, cloning primates 4. _____________________ (also raise) ethical concerns. For example, some people 5. ___________________________ (discuss) issues concerning how clones will be treated in society.
has attracted
have also raised
have been discussing
GRAMMAR
完成时
一、现在完成时
1. 构成：have/has + 过去分词
2. 用法：
（1）过去的动作或状态持续到现在已经完成，对现在造成的影响。常用的时间状语有：lately；recently；so far；by now； up to/till now；in the last/past few days/years等
GRAMMAR
完成时
一、现在完成时
Progress has been so far very good and we are sure that the work will be finished on time.
到目前为止，工作进展得很顺利，我们确信工作一定会按时完成。
The journalist has written 50 reports in the past two years.
这位记者在过去两年里写了50 篇报道。
GRAMMAR
完成时
一、现在完成时
（2）从过去开始一直持续到现在的动作或状态，可能还会继续进行下去。常用的时间状语有：since+时间点；for+时间段。
His first novel has received good reviews since it came out last month.
他的第一部小说自上个月出版以来获得了好评。
The librarian has worked in this library for nearly twenty years.
这位图书管理员在这个图书馆工作了将近二十年。
GRAMMAR
完成时
一、现在完成时
（3）瞬间动词可以用于现在完成时，但在肯定句中不能与表示一段时间的状语连用。在否定句中，瞬间动词可以与表示一段时间的状语连用。常用的瞬间动词有：go，come，arrive，leave，begin， borrow，buy，die，fall，stop，start，kill，close，graduate，join，finish，lose 等。
GRAMMAR
完成时
一、现在完成时
（3）若瞬间动词要接表示一段时间的状语，需要做一些相应的变换，如：buy → have 买；borrow→ keep 借；finish → be over 结束；leave→ be away 离开；close → be closed 关闭；open→ be open 打开；come/ go/ become → be 来/去/变得；成为
fall asleep → be asleep 睡觉；fall ill → be ill 生病
put on → have/ wear 穿；marry→ be married 结婚
join the army → be a soldier/be in the army 参军
GRAMMAR
完成时
一、现在完成时
（3）若瞬间动词要接表示一段时间的状语，需要做一些相应的变换。
“他已经参军三年了”可以用以下方式表达：
He joined the army three years ago.
It is/has been three years since he joined the army.
He has been a soldier for three years.
He has been in the army for three years.
GRAMMAR
完成时
二、过去完成时
1. 构成：had+ 过去分词
2. 用法：
（1）在过去某一时间或过去某一事件之前已经发生并完成的 动作，即“过去的过去”。
When I hurried to the station to see the specialist off, the train had already left.
当我匆忙赶到车站为专家送行时，火车已经开走了。
GRAMMAR
完成时
二、过去完成时
（2）表示一个动作或状态从过去某一时间之前已经开始，一直持续到过去这一时刻，并也可能继续下去。常用的时间状语有：by then；by the time；by that time；before；by the end of；until then；by the time + 一般过去时的从句等。
GRAMMAR
完成时
二、过去完成时
The worker had worked in the workshop for three hours before his machine broke down.
机器损坏之前这个工人已经在车间里工作了三个小时。
By the time Jack returned home from England, his son had graduated from college.
杰克从英国回到家时，他的儿子已大学毕业。
GRAMMAR
完成时
二、过去完成时
（3）intend，mean，hope，want，plan，suppose，expect，think 等动词的过去完成时，可表示过去未曾实现的愿望或想法等。
I had intended to visit you yesterday, but I had an unexpected visitor.
我本来打算昨天去看你的，但来了一个不速之客。（实际上没去）
GRAMMAR
完成时
三、现在完成进行时
1. 构成：have/has been + 现在分词
2. 用法：
（1）现在完成进行时有时所表示的动作并不是一直在不停地进行，而是在断断续续地重复。
I have been ringing you several times in two days.
这两天内我给你打过几次电话。
GRAMMAR
完成时
三、现在完成进行时
（2）表示从过去某一时刻开始，一直持续到现在的动作。这一动作可能刚完成，也可能仍在进行。常用的时间状语有：all this morning；this month；recently；these few days；all night；since等。
The librarian has been working in the library every night over the last three months.
在过去的三个月里，那位图书管理员每天晚上都在图书馆工作。
GRAMMAR
完成时
四、过去完成进行时
1. 构成：had been + 现在分词
2. 用法：
（1）表示过去的过去反复进行的动作。
He had been mentioning your name to me.
他过去多次向我提到你的名字。
GRAMMAR
完成时
四、过去完成进行时
（2）动作从过去的过去开始一直延续到过去某个时间点。在过去某个时间点时，这个动作可能刚刚停止，也可能仍然在进行。
They had only been waiting for the bus a few minutes when it came.
他们只等了几分钟公共汽车就来了。
LANGUAGE POINTS
1. Another example of natural cloning is identical twins...
identical adj. 完全相同的，非常相似的
搭配: be identical to/ with 与……完全相同
be identical in 在……方面极其相似
a row of identical houses 完全一样的一排房子
Her dress is almost identical to mine.
她的连衣裙和我的几乎一模一样。
The sisters were identical in appearance and character.
这对姐妹在相貌和性格上极其相似。
LANGUAGE POINTS
2. This could help save research time, reduce the number of animals required for testing, produce more accurate results, and lead to more eective treatments.
accurate adj. 准确的，精确的
搭配: be accurate in 在……方面准确
to be accurate 精确地说
Broadcast news was accurate and reliable but deadly dull.
新闻广播准确、可靠，但极其枯燥。
Journalists are not always accurate in what they write.
新闻工作者的报道并非总是准确的。
LANGUAGE POINTS
3. While some people believe it is crucial for scientic advancement...
crucial adj. 至关重要的，关键性的
搭配: be crucial to/for... 对……至关重要
be crucial that... ……是至关重要的
Talent, diligence and whole devotion are all crucial to career success.
才能、勤奋和全身心投入对于事业的成功都是至关重要的。
Young people play a crucial role in working for peace.
年轻人在争取和平的事业中发挥着至关重要的作用。
LANGUAGE POINTS
4. They believe it is bound to lead to cloning of other species...
bound adj. 很有可能，肯定会
搭配: be bound to do 一定会，必定会；有义务做，有责任做
be bound for 前往……的
If you keep on working hard like this, chances are bound to favour you.
如果你继续这么努力工作的话，机会一定会垂青你的。
I am bound to say your absence from the meeting is unwise.
我必须告诉你，你缺席会议是不明智的。
LANGUAGE POINTS
5. How it is used, whether it is a blessing or a curse to mankind, depends on mankind and not on the instrument.
whether...or... 不管……还是……引导让步状语从句，强调任意选择，此时不能把whether 替换为if。
Whether you are a farmer or a specialist, you both should obey the rules.
无论你是农民还是专家，你都应该遵守规则。
Whether they’ll have a picnic or not depends on the weather.
他们是否去野餐要看天气。
LANGUAGE POINTS
6. They were the first-ever primates...to have been cloned!
动词不定式作定语 当被修饰词前有序数词（first，second 等）、最高级或 the next，the only，the very 等修饰时，常用不定式作定语。
The journalist was the first person to get to the scene where the accident happened.
那位记者是第一个到达事故现场的人。
He is the only one to get a bachelor’s degree in his family.
他是家中唯一取得学士学位的人。
She was the first woman to be appointed to the board.
她是第一位被任命进入董事会的女性。
LANGUAGE POINTS
7. Researchers insist that the science of cloning should be further explored and advanced.
insist 后接 that 从句，表示“坚持，坚决要求”时，从句用虚拟语 气，即从句谓语用“should + 动词原形”，should 可以省略。
Our English teacher insists that we (should) speak English in and out of class.
英语老师坚持要我们在课堂内外都讲英语。
He insists that students (should) do some exercise for at least half an hour every day.
他要求学生们每天至少锻炼半小时。
PRACTICE
1. To my great joy, I got a chance to take a photo with Andy after the concert, which I ________________________________ (look forward to) for years.
2. China ____________ (see) a sharp increase in the number of aged people over the past decade.
3. Housing prices ________________________ (increase) since a few years ago. Therefore, it’s time that the central government took some measures to bring them under control.
had been looking forward to
has seen
have been increasing
PRACTICE
4. When my parents first came to the city, they often went to neighbors for a talk, just as they _____________ (do) in the countryside.
5. Good Heavens! You are here, Mary! Your parents told me this morning that they were worried about you and they ______________________ (expect) you back the whole night.
6. When I entered the step-classroom, the lecture _____________ (begin) and the people were listening attentively.
had done
had been expecting
had begun
PRACTICE
7. In the last few years, China _________________ (make) great achievements in environmental protection.
8. I ______________________ (write) a book recently describing my response to the ecological dilemma we’re now in.
9. The teacher said it was the first time that little John _________________ so attentively.
10. Over the last two years the park __________________ (receive) 650 monkeys from a breeding farm that shut down.
has made
have been writing
had listened
has received
SUMMARY
Read and talk about cloning;
Notice and discuss how a writer organises writing;
Analyse a writer's intentions and opinions;
Compare personal opinions with the ideas of others;
Read for general understanding and specific information;
Understand and learn words and expressions in context;
Learn and practice using verbs in the perfect tense.
Thank you
LESSON 1 TO CLONE OR NOT TO CLONE
UNIT 9 HUMAN BIOLOGY
LEARNING OBJECTIVES
To read and talk about cloning;
To notice and discuss how a writer organises writing;
To analyse a writer's intentions and opinions;
To compare personal opinions with the ideas of others;
To read for specific information to understand words in context;
To recall and summarise information;
To learn and practise using verbs in the perfect tense.
KEY POINTS AND DIFFICULT POINTS
To answer the comprehension questions;
To understand and discuss cloning;
To analyse a writer's intentions and opinions;
To learn words and expressions in context;
To struggle with complicated sentence structures;
To think critically and express opinions freely.
LEADING IN
What do you know about the perfect
He had been mentioning your name to me.
As soon as we got to the station, the train had left.
The experiment has been done successfully.
We have been seeing quite a lot of each other recently.
By the end of last month, we had reviewed four books.
He has been saying that for years.
George has met that gentleman on several occasions.
I had been looking for it for days before I found it.
FOCUS ON LANGUAGE: THE PERFECT
Identify the tense of the sentences and write the number in the correct columns.
1. Natural cloning has been going on for generations.
2. Gardeners have been using a form of cloning when they take a cutting from a plant ...
3. For years, there had been attempts to clone animals.
4. Cloning primates has proved to be "much harder" than cloning other species.
5. Dr. Sun Qiang said they had been wholly devoted to the research ...
6. Dr. Sun Qiang said they had been taking care of more than 1,000 monkeys 24 hours a day, 7 days a week ...
FOCUS ON LANGUAGE: THE PERFECT
Identify the tense of the sentences and write the number in the correct columns.
Present perfect Present perfect continuous Past perfect Past perfect
continuous
4
1, 2
3, 5
6
have / has done
have / has been doing
had done
had been doing
FOCUS ON LANGUAGE: THE PERFECT
Complete the passage with the proper form of the words in brackets.
On Thursday, the Institute of Neuroscience announced it 1. _____________ (clone) two monkeys using non-reproductive cells. It is reported that researchers all around the world 2. __________________________ (conduct) tests on animals, such as mice and dogs, for many years but couldn’t find a way to clone monkeys. The news of the successful cloning 3.
had cloned
have been conducting
FOCUS ON LANGUAGE: THE PERFECT
Complete the passage with the proper form of the words in brackets.
_________________ (attract) attention from around the world. However, cloning primates 4. _____________________ (also raise) ethical concerns. For example, some people 5. ___________________________ (discuss) issues concerning how clones will be treated in society.
has attracted
have also raised
have been discussing
GRAMMAR
完成时
一、现在完成时
1. 构成：have/has + 过去分词
2. 用法：
（1）过去的动作或状态持续到现在已经完成，对现在造成的影响。常用的时间状语有：lately；recently；so far；by now； up to/till now；in the last/past few days/years等
GRAMMAR
完成时
一、现在完成时
Progress has been so far very good and we are sure that the work will be finished on time.
到目前为止，工作进展得很顺利，我们确信工作一定会按时完成。
The journalist has written 50 reports in the past two years.
这位记者在过去两年里写了50 篇报道。
GRAMMAR
完成时
一、现在完成时
（2）从过去开始一直持续到现在的动作或状态，可能还会继续进行下去。常用的时间状语有：since+时间点；for+时间段。
His first novel has received good reviews since it came out last month.
他的第一部小说自上个月出版以来获得了好评。
The librarian has worked in this library for nearly twenty years.
这位图书管理员在这个图书馆工作了将近二十年。
GRAMMAR
完成时
一、现在完成时
（3）瞬间动词可以用于现在完成时，但在肯定句中不能与表示一段时间的状语连用。在否定句中，瞬间动词可以与表示一段时间的状语连用。常用的瞬间动词有：go，come，arrive，leave，begin， borrow，buy，die，fall，stop，start，kill，close，graduate，join，finish，lose 等。
GRAMMAR
完成时
一、现在完成时
（3）若瞬间动词要接表示一段时间的状语，需要做一些相应的变换，如：buy → have 买；borrow→ keep 借；finish → be over 结束；leave→ be away 离开；close → be closed 关闭；open→ be open 打开；come/ go/ become → be 来/去/变得；成为
fall asleep → be asleep 睡觉；fall ill → be ill 生病
put on → have/ wear 穿；marry→ be married 结婚
join the army → be a soldier/be in the army 参军
GRAMMAR
完成时
一、现在完成时
（3）若瞬间动词要接表示一段时间的状语，需要做一些相应的变换。
“他已经参军三年了”可以用以下方式表达：
He joined the army three years ago.
It is/has been three years since he joined the army.
He has been a soldier for three years.
He has been in the army for three years.
GRAMMAR
完成时
二、过去完成时
1. 构成：had+ 过去分词
2. 用法：
（1）在过去某一时间或过去某一事件之前已经发生并完成的 动作，即“过去的过去”。
When I hurried to the station to see the specialist off, the train had already left.
当我匆忙赶到车站为专家送行时，火车已经开走了。
GRAMMAR
完成时
二、过去完成时
（2）表示一个动作或状态从过去某一时间之前已经开始，一直持续到过去这一时刻，并也可能继续下去。常用的时间状语有：by then；by the time；by that time；before；by the end of；until then；by the time + 一般过去时的从句等。
GRAMMAR
完成时
二、过去完成时
The worker had worked in the workshop for three hours before his machine broke down.
机器损坏之前这个工人已经在车间里工作了三个小时。
By the time Jack returned home from England, his son had graduated from college.
杰克从英国回到家时，他的儿子已大学毕业。
GRAMMAR
完成时
二、过去完成时
（3）intend，mean，hope，want，plan，suppose，expect，think 等动词的过去完成时，可表示过去未曾实现的愿望或想法等。
I had intended to visit you yesterday, but I had an unexpected visitor.
我本来打算昨天去看你的，但来了一个不速之客。（实际上没去）
GRAMMAR
完成时
三、现在完成进行时
1. 构成：have/has been + 现在分词
2. 用法：
（1）现在完成进行时有时所表示的动作并不是一直在不停地进行，而是在断断续续地重复。
I have been ringing you several times in two days.
这两天内我给你打过几次电话。
GRAMMAR
完成时
三、现在完成进行时
（2）表示从过去某一时刻开始，一直持续到现在的动作。这一动作可能刚完成，也可能仍在进行。常用的时间状语有：all this morning；this month；recently；these few days；all night；since等。
The librarian has been working in the library every night over the last three months.
在过去的三个月里，那位图书管理员每天晚上都在图书馆工作。
GRAMMAR
完成时
四、过去完成进行时
1. 构成：had been + 现在分词
2. 用法：
（1）表示过去的过去反复进行的动作。
He had been mentioning your name to me.
他过去多次向我提到你的名字。
GRAMMAR
完成时
四、过去完成进行时
（2）动作从过去的过去开始一直延续到过去某个时间点。在过去某个时间点时，这个动作可能刚刚停止，也可能仍然在进行。
They had only been waiting for the bus a few minutes when it came.
他们只等了几分钟公共汽车就来了。
LANGUAGE POINTS
1. Another example of natural cloning is identical twins...
identical adj. 完全相同的，非常相似的
搭配: be identical to/ with 与……完全相同
be identical in 在……方面极其相似
a row of identical houses 完全一样的一排房子
Her dress is almost identical to mine.
她的连衣裙和我的几乎一模一样。
The sisters were identical in appearance and character.
这对姐妹在相貌和性格上极其相似。
LANGUAGE POINTS
2. This could help save research time, reduce the number of animals required for testing, produce more accurate results, and lead to more eective treatments.
accurate adj. 准确的，精确的
搭配: be accurate in 在……方面准确
to be accurate 精确地说
Broadcast news was accurate and reliable but deadly dull.
新闻广播准确、可靠，但极其枯燥。
Journalists are not always accurate in what they write.
新闻工作者的报道并非总是准确的。
LANGUAGE POINTS
3. While some people believe it is crucial for scientic advancement...
crucial adj. 至关重要的，关键性的
搭配: be crucial to/for... 对……至关重要
be crucial that... ……是至关重要的
Talent, diligence and whole devotion are all crucial to career success.
才能、勤奋和全身心投入对于事业的成功都是至关重要的。
Young people play a crucial role in working for peace.
年轻人在争取和平的事业中发挥着至关重要的作用。
LANGUAGE POINTS
4. They believe it is bound to lead to cloning of other species...
bound adj. 很有可能，肯定会
搭配: be bound to do 一定会，必定会；有义务做，有责任做
be bound for 前往……的
If you keep on working hard like this, chances are bound to favour you.
如果你继续这么努力工作的话，机会一定会垂青你的。
I am bound to say your absence from the meeting is unwise.
我必须告诉你，你缺席会议是不明智的。
LANGUAGE POINTS
5. How it is used, whether it is a blessing or a curse to mankind, depends on mankind and not on the instrument.
whether...or... 不管……还是……引导让步状语从句，强调任意选择，此时不能把whether 替换为if。
Whether you are a farmer or a specialist, you both should obey the rules.
无论你是农民还是专家，你都应该遵守规则。
Whether they’ll have a picnic or not depends on the weather.
他们是否去野餐要看天气。
LANGUAGE POINTS
6. They were the first-ever primates...to have been cloned!
动词不定式作定语 当被修饰词前有序数词（first，second 等）、最高级或 the next，the only，the very 等修饰时，常用不定式作定语。
The journalist was the first person to get to the scene where the accident happened.
那位记者是第一个到达事故现场的人。
He is the only one to get a bachelor’s degree in his family.
他是家中唯一取得学士学位的人。
She was the first woman to be appointed to the board.
她是第一位被任命进入董事会的女性。
LANGUAGE POINTS
7. Researchers insist that the science of cloning should be further explored and advanced.
insist 后接 that 从句，表示“坚持，坚决要求”时，从句用虚拟语 气，即从句谓语用“should + 动词原形”，should 可以省略。
Our English teacher insists that we (should) speak English in and out of class.
英语老师坚持要我们在课堂内外都讲英语。
He insists that students (should) do some exercise for at least half an hour every day.
他要求学生们每天至少锻炼半小时。
PRACTICE
1. To my great joy, I got a chance to take a photo with Andy after the concert, which I ________________________________ (look forward to) for years.
2. China ____________ (see) a sharp increase in the number of aged people over the past decade.
3. Housing prices ________________________ (increase) since a few years ago. Therefore, it’s time that the central government took some measures to bring them under control.
had been looking forward to
has seen
have been increasing
PRACTICE
4. When my parents first came to the city, they often went to neighbors for a talk, just as they _____________ (do) in the countryside.
5. Good Heavens! You are here, Mary! Your parents told me this morning that they were worried about you and they ______________________ (expect) you back the whole night.
6. When I entered the step-classroom, the lecture _____________ (begin) and the people were listening attentively.
had done
had been expecting
had begun
PRACTICE
7. In the last few years, China _________________ (make) great achievements in environmental protection.
8. I ______________________ (write) a book recently describing my response to the ecological dilemma we’re now in.
9. The teacher said it was the first time that little John _________________ so attentively.
10. Over the last two years the park __________________ (receive) 650 monkeys from a breeding farm that shut down.
has made
have been writing
had listened
has received
SUMMARY
Read and talk about cloning;
Notice and discuss how a writer organises writing;
Analyse a writer's intentions and opinions;
Compare personal opinions with the ideas of others;
Read for general understanding and specific information;
Understand and learn words and expressions in context;
Learn and practice using verbs in the perfect tense.
Thank you