外研版（2019）选择性必修 第四册Unit 5 Into the unknown课件(共14张PPT)
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| 名称 | 外研版（2019）选择性必修 第四册Unit 5 Into the unknown课件(共14张PPT) |  | |
| 格式 | pptx | ||
| 文件大小 | 17.3MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 外研版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2024-04-27 19:15:55 | ||
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(共14张PPT)
Unit 5 Into the unknown
Listening
Facing the unknown
1. Grasp some basic facts and the current research situation
about the brain;
2. Ignite the desire to dig out more scientific mysteries and
form the habit of sleeping early.
Read the passage and answer the questions.
What functions of the brain are mentioned in the passage
What is the current research situation concerning the brain
Do you know any other interesting facts about the brain Share them with the class.
7
1. What functions of the brain are mentioned
The brain is the centre of the nervous system and controls most of the body’s activities. The back part of it is involved with our vision and the sides of it are involved in memory, speech and rhythm.
2. What’s the current research situation about the brain
There is still a long way to go before we can completely understand the workings of the brain.
Listen to the interview and choose the topic discussed.
Methods to keep the brain healthy and active.
Sleep-related mysteries.
Ways of improving sleep quality.
Methods of interpreting dreams.
√
8
Listen again and complete the table.
Theories Dr Long’s comments
The brain needs time to 1_____________________. Recent studies prove that our brains
2____________ during sleep.
The brain 3_____________________________ when we’re awake. It needs sleep to 4_____________________. There isn’t 5_____________ to confirm this. It might not be
6 ______________________ for sleep.
rest and do maintenance
makes lots of poisonous chemicals
remove these chemicals
remain active
enough data
the most important reason
9
Theories Dr Long’s comments
7__________________________________________in the brain while we’re awake, and the brain reflects on them and 8 ___________________________ in our dreams. A lot of research has been conducted, but we still can’t prove that
9_____________________________.
Other unanswered questions
Why do we “see” our dreams 10_____________________________________________________________________
Why do some people dream in colour and others don’t
sleep is necessary to this function
use them to form new memories
New connections are formed between
different parts
Now use the information in the former table to give a lecture about sleep-related mysteries to the class. Do further research if necessary.
Individual work: Deliver a speech
Complete the boxes with the expressions from the interview.
Could you tell us something about...
What other reasons could there be for it
It’s because...
...prove that...
Would you tell us more about...
Asking for more information Explaining
Could you tell us something about...
What other reasons could there be for it
Would you tell us more about...
It’s because...
...prove that...
10
Interviewer: Welcome to Science Matters. My guest today is brain scientist Dr Janice Long.
Dr Long, could you tell us something about your research
Janice Long: Of course. One of my research areas is sleep, surrounding which there are still
many mysteries. For example, we spend one third of our lives sleeping, but still
don’t fully understand why we need sleep.
Interviewer: It’s because our brains need time to rest and do maintenance, right
Janice Long: Certainly, that is believed by some researchers. But actually, more recent studies
prove that our brains remain active during sleep.
Interviewer: Really If sleep is not for rest, what other reasons could there be for it
Janice Long: Another theory says we sleep due to the brain making lots of poisonous
chemicals when we’re awake. It can only remove these chemicals when we’re
asleep. But so far, there isn’t enough data to prove it. Personally, I think it might
be one reason for sleep, but not the most important one.
Listening material
Interviewer: I see. So what factor do you believe to be the main cause of sleep
Janice Long: Well, most scientists, including myself, believe that sleep, especially dreams,
can aid learning and help us make memories.
Interviewer: Make memories Would you tell us more about this
Janice Long: You see, while we’re awake, new connections are formed between different
parts of the brain. Sleep gives our brains the opportunity to reflect on those
connections and use them to form new memories in dreams.
Interviewer: That’s fascinating. So, I guess sleep isn’t quite as mysterious anymore
Janice Long: Oh, I wouldn’t say that. Though we’ve conducted a lot of research, we still
can’t prove that sleep is necessary to this function. Hopefully we’ll figure it
out eventually!
Interviewer: Good luck with that! And what other mysteries are there surrounding sleep
Janice Long: Well, there are many unanswered questions: why do we “see” our dreams Why
do some people dream in colour and others don’t The list goes on, and there is
a lot of research still to be done... [fade out]
Students play an different roles and conduct an interview with an archaeologist(考古学家) to uncover the myth why dinosaurs disappeared from the earth by using the words and expressions in this section.
Group Work—Role Play
11
THANKS
Unit 5 Into the unknown
Listening
Facing the unknown
1. Grasp some basic facts and the current research situation
about the brain;
2. Ignite the desire to dig out more scientific mysteries and
form the habit of sleeping early.
Read the passage and answer the questions.
What functions of the brain are mentioned in the passage
What is the current research situation concerning the brain
Do you know any other interesting facts about the brain Share them with the class.
7
1. What functions of the brain are mentioned
The brain is the centre of the nervous system and controls most of the body’s activities. The back part of it is involved with our vision and the sides of it are involved in memory, speech and rhythm.
2. What’s the current research situation about the brain
There is still a long way to go before we can completely understand the workings of the brain.
Listen to the interview and choose the topic discussed.
Methods to keep the brain healthy and active.
Sleep-related mysteries.
Ways of improving sleep quality.
Methods of interpreting dreams.
√
8
Listen again and complete the table.
Theories Dr Long’s comments
The brain needs time to 1_____________________. Recent studies prove that our brains
2____________ during sleep.
The brain 3_____________________________ when we’re awake. It needs sleep to 4_____________________. There isn’t 5_____________ to confirm this. It might not be
6 ______________________ for sleep.
rest and do maintenance
makes lots of poisonous chemicals
remove these chemicals
remain active
enough data
the most important reason
9
Theories Dr Long’s comments
7__________________________________________in the brain while we’re awake, and the brain reflects on them and 8 ___________________________ in our dreams. A lot of research has been conducted, but we still can’t prove that
9_____________________________.
Other unanswered questions
Why do we “see” our dreams 10_____________________________________________________________________
Why do some people dream in colour and others don’t
sleep is necessary to this function
use them to form new memories
New connections are formed between
different parts
Now use the information in the former table to give a lecture about sleep-related mysteries to the class. Do further research if necessary.
Individual work: Deliver a speech
Complete the boxes with the expressions from the interview.
Could you tell us something about...
What other reasons could there be for it
It’s because...
...prove that...
Would you tell us more about...
Asking for more information Explaining
Could you tell us something about...
What other reasons could there be for it
Would you tell us more about...
It’s because...
...prove that...
10
Interviewer: Welcome to Science Matters. My guest today is brain scientist Dr Janice Long.
Dr Long, could you tell us something about your research
Janice Long: Of course. One of my research areas is sleep, surrounding which there are still
many mysteries. For example, we spend one third of our lives sleeping, but still
don’t fully understand why we need sleep.
Interviewer: It’s because our brains need time to rest and do maintenance, right
Janice Long: Certainly, that is believed by some researchers. But actually, more recent studies
prove that our brains remain active during sleep.
Interviewer: Really If sleep is not for rest, what other reasons could there be for it
Janice Long: Another theory says we sleep due to the brain making lots of poisonous
chemicals when we’re awake. It can only remove these chemicals when we’re
asleep. But so far, there isn’t enough data to prove it. Personally, I think it might
be one reason for sleep, but not the most important one.
Listening material
Interviewer: I see. So what factor do you believe to be the main cause of sleep
Janice Long: Well, most scientists, including myself, believe that sleep, especially dreams,
can aid learning and help us make memories.
Interviewer: Make memories Would you tell us more about this
Janice Long: You see, while we’re awake, new connections are formed between different
parts of the brain. Sleep gives our brains the opportunity to reflect on those
connections and use them to form new memories in dreams.
Interviewer: That’s fascinating. So, I guess sleep isn’t quite as mysterious anymore
Janice Long: Oh, I wouldn’t say that. Though we’ve conducted a lot of research, we still
can’t prove that sleep is necessary to this function. Hopefully we’ll figure it
out eventually!
Interviewer: Good luck with that! And what other mysteries are there surrounding sleep
Janice Long: Well, there are many unanswered questions: why do we “see” our dreams Why
do some people dream in colour and others don’t The list goes on, and there is
a lot of research still to be done... [fade out]
Students play an different roles and conduct an interview with an archaeologist(考古学家) to uncover the myth why dinosaurs disappeared from the earth by using the words and expressions in this section.
Group Work—Role Play
11
THANKS