unit16[下学期]
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Unit 16 Scientists at work
The first Period
Warming up and Speaking
Date:2006.4.
Class:Class 5,Senior Grade 1
Teacher: Lu kemao
Teaching Aims :
1. Learn and master the following words:
Experiment gas wheel engine nuclear economy unnecessary comfort
2. Do some speaking to talk about advantages and disadvantages of many science discoveries.
Teaching Important Points:
Improve the students’ speaking ability by discussion,talks and making some dialogues.
Teaching difficult Points:
1. How to finish the task of speaking.
2. How to make dialogues correctly.
Teaching Methods:
1. Warming up to arouse the students’ interest in science experiment.
2. Making simple dialogues to practise the students’speaking ability.
3. Individual,pair work or group work to make every student work in class.
Teaching Procedures:
Step I . Greetings .
Step II . Lead-in
T: Now you learn several subjects at school ,such as , maths , Chinese ,English , physics , chemistry and so on .Which do you like best Why Any volunteers
S1: I like English . My wish is to go abroad some day , so I like English and I want to learn it well .
S2: I like biology . I want to become a scientist to explore the secrets of life .
S3: I like physics . I’m interested in electricity . I want to know more about it and make more use of it to make our life better and better .
S4: …
T: When I was your age , I often did experiments at school . { Teacher writes the word “ experiment “ on the black-board .} Do you know the meaning of the word “ experiment “ “Experiment” means “something that you do to see and study what happens so that you can learn more .” For example :
I hope to find the answer to this problem by experiment .
{write the example on the blackboard .}
Do you often do experiments
S5: Yes . We often do experiments in physics ,chemistry and biology in the labs or in the classroom .
T: Do you do experiments by yourselves or do them with your teachers
S6: Most of the time , we make experiments by ourselves in the labs and we are directed by ourselves in the labs and we are directed by our teachers .In the classroom our teachers often show us some experiments .
Step III . Warming up
T: Ok . You have made many experiments . Can you describe some simple ones in English Now , I ‘ll show you three pictures on the screen . Please look at them carefully and then describe them . While doing this , the questions on the screen can help you . Please prepare this in pairs . { Teacher shows the questions and pictures on the screen . }
Questions : 1 . Describe what you see in each picture . What is it about
2. What are the names of the school subjects in which you study science
3.Give an example of what you learn about for each field of science .
{Students begin to talk about the pictures and teacher goes among them and joins them . A few minutes later , teacher asks three students to describe them before class . } ( 课件)
T : Are you ready
(Ss : Yes )
Who can give us a description of the first picture
S7 : I’ll try . This is an experiment in biology . From
the picture , we can see two covers made of glass . The mouse dies after it’s put into the first cover because of lack of oxygen while the second cover is still living , because there is a plant in it . From this experiment , we know that green plants can produce oxygen .
T : Very good . Now we’ll go on to talk about the other two pictures .
S8, the second picture.
S8: …
Sample writing
In picture 2 ,we can see an experiment of electrification by friction . In the experiment , the ruler after rubbed is put near the small pieces of paper . The pieces of paper are attracted onto the ruler . The experiment shows that electricity can be produced after two objects are rubbed . That’s very easy and interesting .
Picture 3 shows an experiment of the boiling of water in
physics . In the picture , we can see the water in the test tube is turned into steam after heated .Then the steam meets the cold piece of glass and is turned into drops of water again . The experiment suggests that the fome of water can be changed , but it can’t turn into other things .
T : Ok . When you are doing experiments , what should you pay attention to Can you tell me your ideas
S9 : We shouldn’t enter the lab without a teacher . When we are there , listen to the teacher .
S10: We should follow the teacher’s instructions. Don’t touch anything without the teacher’s permission . Some of the instruments are dangerous .
Step IV. Speaking
T: Let’s do some speaking .In this part,there are also a few new words . First Let’s learn them .Look at the screen .
Wheel engine engineer nuclear economy
Unnecessary necessary comfort comfortable
T: (课件)There is a dialogue between two men in this part .They are talking about the advantages and disadvantages of a high-speed Maglev train from Shanghai to Pudong Airport.Now , please read the dialogue quickly and then find out its advantages and disadvantages.
(After a while , teacher asks students to say the advantages and disadvantages . Meanwhile,teacher shows them on the screen.)
Building a high-speed Maglev train
Advantages It is very fast.It has no wheels and no engine.It’s clean.It makes no noise.
Disadvantages It’s much too expensive.It’s a waste of money.
T: Please pay attention to the usages of some phrases.Please look at the screen.
1. In one’s opinion/I think --------- In my opinion,he is clever.
依我看来，我们去看他之前最好先打个电话。
（In my opinion, we’d better phone him before we pay a visit to him.）
依我之见，我们队将会赢得这场比赛。
（In my opinion , our team will win the game.）
3. A waste of money --------Don’t buy an expensive computer,I
thing it’s a waste of money.
买电视机很浪费钱。
(It’s a waste of money to buy a TV set.)
试图说服他听我们的简直是浪费时间和精力。
(It’s a waste of time and engine to try to persuade him to listen to us .)
4. make more / full / good use of-------We should make more use of every minute to study.
5. 如果你想在学习上取得进步，你必须充分利用时间。
(If you want to make progress in your lessons, you must make full use of time.)
我们必须更好地利用电。(We must make good use of electricity.)
T: The work of scientist is often discussed . there are advantages and disadvantages to many science discoveries . Don’t you think so Now , there are four inventions for us to discuss.While you are discussing them,the useful phrases on page 18 can help you.(Students are divided into four groups.Each group talks about one invention.)
Cloning Advantages Help women have babies; help medical research
Disadvantages It is not natural to make people; dangerous;people use it to do strange things.
Nuclearenergy Advantages It is very useful . It is clean and does not pollute the air , so it is often used to make electricity .It is a limitless resource
Disadvantages It will be dangerous to people’s health and bad for the environment if it is released . It is not easy to deal with .
Computers Advantages It is useful in many fields . It is important for science . Many problems can’t be settled without computers . It is faster . It can store much information for us to find out . It is much more convenient for us to work with computers .
Disadvantages We can’t do anything if computers are broken . Some people use it for other things , for example , playing computer games . So it can bring bad effects to people and society .
Spaceflights Advantages Space flights will be interesting and exciting . It is useful for scientific research .
Disadvantages It is too expensive .Most of the people can’t afford the traveling expenses.
Step VI. Summary and Homework
T : Today we’ve talked about some pictures and known how to describe some simple experiments .We’ve also done some speaking practice .Now we know how to discuss the advantages and disadvantages of some inventions . Meanwhile , we’ve learned some useful phrases .After class , remember the phrases and make a dialogue to talk about advantages and disadvantages of some inventions ; make a sentence with each of the phrase ; using the information learnt today . Class is over .
Sample dialogue
A : Today I read a piece of news in the newspaper . It says that another cow has been cloned in our country .
B : Really The technique is very useful . It can save some rare species . Many animals will not die out .
A : Are there any other advantages
B : Yes . It can be used to increase the number of some kind of animal in a shorter period if this technique is widely used . But it is impossible to do so at present in any country . It’s said that some parts of human body can also be cloned .
A : This is useful in medicine. But if humans can be cloned , that will be terrible . The whole society will be confused if it is not used properly .
B : I am sure that scientists will agree on that in the future .
Step VII. The Design of the Writing on the Blackboard
Unit 16 Scientists at workThe First Period experiment n. I hope to find out the answer to this problem by experiment . in one’s opinion In my opinon , he is clever . a waste of money Don’t buy an expensive computer , it’s a waste of money. make more / full / good / use of We should make more use of every minute to study .
The first Period
Warming up and Speaking
Date:2006.4.
Class:Class 5,Senior Grade 1
Teacher: Lu kemao
Teaching Aims :
1. Learn and master the following words:
Experiment gas wheel engine nuclear economy unnecessary comfort
2. Do some speaking to talk about advantages and disadvantages of many science discoveries.
Teaching Important Points:
Improve the students’ speaking ability by discussion,talks and making some dialogues.
Teaching difficult Points:
1. How to finish the task of speaking.
2. How to make dialogues correctly.
Teaching Methods:
1. Warming up to arouse the students’ interest in science experiment.
2. Making simple dialogues to practise the students’speaking ability.
3. Individual,pair work or group work to make every student work in class.
Teaching Procedures:
Step I . Greetings .
Step II . Lead-in
T: Now you learn several subjects at school ,such as , maths , Chinese ,English , physics , chemistry and so on .Which do you like best Why Any volunteers
S1: I like English . My wish is to go abroad some day , so I like English and I want to learn it well .
S2: I like biology . I want to become a scientist to explore the secrets of life .
S3: I like physics . I’m interested in electricity . I want to know more about it and make more use of it to make our life better and better .
S4: …
T: When I was your age , I often did experiments at school . { Teacher writes the word “ experiment “ on the black-board .} Do you know the meaning of the word “ experiment “ “Experiment” means “something that you do to see and study what happens so that you can learn more .” For example :
I hope to find the answer to this problem by experiment .
{write the example on the blackboard .}
Do you often do experiments
S5: Yes . We often do experiments in physics ,chemistry and biology in the labs or in the classroom .
T: Do you do experiments by yourselves or do them with your teachers
S6: Most of the time , we make experiments by ourselves in the labs and we are directed by ourselves in the labs and we are directed by our teachers .In the classroom our teachers often show us some experiments .
Step III . Warming up
T: Ok . You have made many experiments . Can you describe some simple ones in English Now , I ‘ll show you three pictures on the screen . Please look at them carefully and then describe them . While doing this , the questions on the screen can help you . Please prepare this in pairs . { Teacher shows the questions and pictures on the screen . }
Questions : 1 . Describe what you see in each picture . What is it about
2. What are the names of the school subjects in which you study science
3.Give an example of what you learn about for each field of science .
{Students begin to talk about the pictures and teacher goes among them and joins them . A few minutes later , teacher asks three students to describe them before class . } ( 课件)
T : Are you ready
(Ss : Yes )
Who can give us a description of the first picture
S7 : I’ll try . This is an experiment in biology . From
the picture , we can see two covers made of glass . The mouse dies after it’s put into the first cover because of lack of oxygen while the second cover is still living , because there is a plant in it . From this experiment , we know that green plants can produce oxygen .
T : Very good . Now we’ll go on to talk about the other two pictures .
S8, the second picture.
S8: …
Sample writing
In picture 2 ,we can see an experiment of electrification by friction . In the experiment , the ruler after rubbed is put near the small pieces of paper . The pieces of paper are attracted onto the ruler . The experiment shows that electricity can be produced after two objects are rubbed . That’s very easy and interesting .
Picture 3 shows an experiment of the boiling of water in
physics . In the picture , we can see the water in the test tube is turned into steam after heated .Then the steam meets the cold piece of glass and is turned into drops of water again . The experiment suggests that the fome of water can be changed , but it can’t turn into other things .
T : Ok . When you are doing experiments , what should you pay attention to Can you tell me your ideas
S9 : We shouldn’t enter the lab without a teacher . When we are there , listen to the teacher .
S10: We should follow the teacher’s instructions. Don’t touch anything without the teacher’s permission . Some of the instruments are dangerous .
Step IV. Speaking
T: Let’s do some speaking .In this part,there are also a few new words . First Let’s learn them .Look at the screen .
Wheel engine engineer nuclear economy
Unnecessary necessary comfort comfortable
T: (课件)There is a dialogue between two men in this part .They are talking about the advantages and disadvantages of a high-speed Maglev train from Shanghai to Pudong Airport.Now , please read the dialogue quickly and then find out its advantages and disadvantages.
(After a while , teacher asks students to say the advantages and disadvantages . Meanwhile,teacher shows them on the screen.)
Building a high-speed Maglev train
Advantages It is very fast.It has no wheels and no engine.It’s clean.It makes no noise.
Disadvantages It’s much too expensive.It’s a waste of money.
T: Please pay attention to the usages of some phrases.Please look at the screen.
1. In one’s opinion/I think --------- In my opinion,he is clever.
依我看来，我们去看他之前最好先打个电话。
（In my opinion, we’d better phone him before we pay a visit to him.）
依我之见，我们队将会赢得这场比赛。
（In my opinion , our team will win the game.）
3. A waste of money --------Don’t buy an expensive computer,I
thing it’s a waste of money.
买电视机很浪费钱。
(It’s a waste of money to buy a TV set.)
试图说服他听我们的简直是浪费时间和精力。
(It’s a waste of time and engine to try to persuade him to listen to us .)
4. make more / full / good use of-------We should make more use of every minute to study.
5. 如果你想在学习上取得进步，你必须充分利用时间。
(If you want to make progress in your lessons, you must make full use of time.)
我们必须更好地利用电。(We must make good use of electricity.)
T: The work of scientist is often discussed . there are advantages and disadvantages to many science discoveries . Don’t you think so Now , there are four inventions for us to discuss.While you are discussing them,the useful phrases on page 18 can help you.(Students are divided into four groups.Each group talks about one invention.)
Cloning Advantages Help women have babies; help medical research
Disadvantages It is not natural to make people; dangerous;people use it to do strange things.
Nuclearenergy Advantages It is very useful . It is clean and does not pollute the air , so it is often used to make electricity .It is a limitless resource
Disadvantages It will be dangerous to people’s health and bad for the environment if it is released . It is not easy to deal with .
Computers Advantages It is useful in many fields . It is important for science . Many problems can’t be settled without computers . It is faster . It can store much information for us to find out . It is much more convenient for us to work with computers .
Disadvantages We can’t do anything if computers are broken . Some people use it for other things , for example , playing computer games . So it can bring bad effects to people and society .
Spaceflights Advantages Space flights will be interesting and exciting . It is useful for scientific research .
Disadvantages It is too expensive .Most of the people can’t afford the traveling expenses.
Step VI. Summary and Homework
T : Today we’ve talked about some pictures and known how to describe some simple experiments .We’ve also done some speaking practice .Now we know how to discuss the advantages and disadvantages of some inventions . Meanwhile , we’ve learned some useful phrases .After class , remember the phrases and make a dialogue to talk about advantages and disadvantages of some inventions ; make a sentence with each of the phrase ; using the information learnt today . Class is over .
Sample dialogue
A : Today I read a piece of news in the newspaper . It says that another cow has been cloned in our country .
B : Really The technique is very useful . It can save some rare species . Many animals will not die out .
A : Are there any other advantages
B : Yes . It can be used to increase the number of some kind of animal in a shorter period if this technique is widely used . But it is impossible to do so at present in any country . It’s said that some parts of human body can also be cloned .
A : This is useful in medicine. But if humans can be cloned , that will be terrible . The whole society will be confused if it is not used properly .
B : I am sure that scientists will agree on that in the future .
Step VII. The Design of the Writing on the Blackboard
Unit 16 Scientists at workThe First Period experiment n. I hope to find out the answer to this problem by experiment . in one’s opinion In my opinon , he is clever . a waste of money Don’t buy an expensive computer , it’s a waste of money. make more / full / good / use of We should make more use of every minute to study .