2023年初二下册英语冀教版精品讲义第四单元.pdf

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1、优秀教案 欢迎下载 Lesson 25:Lets Do an Experiment Teaching Content:Mastery words and expressions:science,experiment,fill,prove Oral words and expressions:theory,jar,upside,observe,right,side up,upside down Teaching Aims:1.Use the Simple Present Tense.2.Express certainty and uncertainty Teaching Important Po

2、ints:1.Learn to express sequence;2.How to express an experiment.Teaching Difficult Points:Express certainty and uncertainty Teaching Preparation:jar,cardboard,water Teaching Aids:audiotape,flashcards,jar,cardboard,water Type of lesson:new lesson Teaching Procedure:Step1.Teacher brings the jar,cardbo

3、ard and water to the class.Show them to the students and ask what experiments we can do with them.Let the students show them and explain the reasons to the students.Let the students work in groups and discuss the experiments.When one group is doing the experiments,the others can ask the questions.Th

4、e teacher can ask questions,too.Step2.Now let the students open their books and guess what the experiment is.Ask the students to say it in English.Step3.Read the text silently and answers the following questions.1.Whats a theory?2.Whats an experiment for?3.Did Danny read about the experiment?What is

5、 it about?4.Do you think the cardboard can hold the water in the jar?Why?Step4.Read the text carefully and check the answers.Explain some words and expressions to the class.Step5.Listen to the tape and repeat after it line by line.Can the students listening good enough to hear clearly?Step6.Come to“

6、Lets Do It.”Divide the class into two groups.One group thinks the floor will get wet.The others think it wont.Let them discuss in class.Pay attention to telling the reasons.Step7.Homework 1.Review the next lesson.2.Finish off the activity book.Summary:The experiment is the main part of the text.If w

7、e have time,do it in the class.Then ask them to describe what they see.Give a report to the class.If the time in class isnt enough,let the students do the 优秀教案 欢迎下载 experiment after class.Then report the result to the class.The teacher can do the experiment for the students,too.Lesson 26:One Wet Dan

8、ny?Teaching Content:Mastery words and expressions:force Oral words and expressions:swimsuit,observation,turnover Teaching Aims:1.Use the Simple Future Tense to describe the thing that will happen.2.Grasp the knowledge by doing the experiment.Enjoy the experiment and finish it by students themselves.

9、Teaching Important Points:1.Grasp the Simple Future Tense.2.Talk about the experiment process.Teaching Difficult Points:Some words and expressions,such as:talk about,talk to,tell sb.,ask sb.to do sth.Teaching Preparation:jar,cardboard,water,pictures Teaching Aids:audiotape,flashcards,pictures,jar,ca

10、rdboard,water Teaching Procedure:Step1.Review Lesson 25.Let some students talk about the main idea of Lesson 25.The teacher and the students can ask:1.What do we use in the experiment?2.How do you turn the jar full of water upside down?3.What do you cover on the jar?4.Whats your theory?Step2.Do a su

11、rvey:1.How many students have done the experiment?2.Whats the result?3.How many students think Danny is going to get wet?Report it to the class.Step3.Listen to the tape and let some students ask the following questions:1.What are they talking about?2.Who will do the experiment?3.What will happen to

12、the water in the experiment?4.What will keep the water in the jar?5.What will they do after the experiment?Step4.Read the text silently and check the answers.Read it in roles in class in individuals or in groups.Step5.Let some students act the dialogue out in front of the class.Step6.Come to“LETS DO

13、 IT.”步虽然尽管分数的表达法口诀分子基分母序分子分母加优秀教案欢迎下优秀教案 欢迎下载 Do the experiment in groups.Let the students observe the experiment carefully.Then give a report to the class about what it is like.Do anyone get wet in the experiment?Why?Step7.Homework 1.Finish off the activity book.2.Go on the next reading in the stud

14、ent book.Summary:This passage is about the two opinions to the experiment.Why do you think so is the main explanations.Let the students have a brainstorm.The teacher walks around and helps them if it necessary Lesson 26 教案 Class opening For ideas and tips on beginning a class,see“teaching techniques

15、”at the back of this teachers guide.Step 1:Break the class into groups of four to discuss“Think about it”.Step 2:Have the students listen to the reading and see if they can answer this question:Why will Danny dry himself?(He thinks he will get wet in the experiment.)Step3:Play the tape or read the r

16、eadings,pause after every line,and ask the students to repeat(a)in chorus,(b)in small groups,(c)individually.Step4:Ask individual students questions.The students give natural answers.What are they talking about?Who will do the experiment?What will happen to the water in the experiment?What will keep

17、 the water in the jar?What will they do after the experiment?Step5:Divide the class into small groups.Ask each group so act out the reading in any way they choose.They can read aloud what the characters have actually said.They can also talk to one another in their own ways,based upon the text.Step6:

18、Ask one or two groups to perform their drama for the class.Step 7:If you have time,discuss the reading with students.Use as much English as possible.Ask questions to make it easier for students to participate in the discussion.Here is an idea for your discussion:Imagine that you are presenting your

19、presentation?Step8:Come to“lets do it.”Class closing The second reading in the reader The remaining activities in the activity book The next reading in the student book Lesson 27 教案 Class opening 步虽然尽管分数的表达法口诀分子基分母序分子分母加优秀教案欢迎下优秀教案 欢迎下载 For ideas and tips on beginning a class,see“teaching techniques

20、“at the back of this teachers guide.Step1:Divide the class into two groups to get ready for the two experiments.In class,one group does the first experiment and he other group does the second one.Each group will do their experiment for the class.Step2:Let the students listen to the readings and see

21、if they can answer these questions:For the first passage:Whats happening to Danny?Is he getting wet or not?For the second passage:Does everything dissolve in water?Step3:Have the students of Group One read the first reading and have the students of Group Two read the second reading.Step4:Play the ta

22、pe or read the passage.And then ask the students to interpret the picture.Step5:Play the tape or read the readings again,pause after every line,and ask the students to repeat(a)in chorus,(b)in small groups,(c)individually.Step6:Break the students into groups to do the two experiments.As they do it,t

23、hey should describe it in English.Encourage them to use as much English as possible.Step7:Let the students do some comprehension if time permits.Ask individual students questions.The students give natural answers.Step 8:Ask three volunteers to act out the reading.The rest fo the students should list

24、en,watch and respond to Jennys questions.Step9:Have the class rewrite the text in the past tense.Divide the class into twelve groups.Assign one paragraph to each group.Each group should discuss and rewrite one of the twelve paragraphs.Then have a representative from each group read aloud what has be

25、en rewritten.Comment on their work and remember to give praise for good efforts!Step10:Come to“Lets do it.”Class closing The third reading in the reader The remaining activities in the activity book The next reading in the student book Lesson 28教案 Class opening For ideas and tips on beginning a clas

26、s,see“teaching techniques”at the back of this teachers guide.Step1:Check to see if the students have previewed the text as required.Ask two volunteers to perform the dialogue between Danny and Brian by looking at the pictures and speech bubbles.步虽然尽管分数的表达法口诀分子基分母序分子分母加优秀教案欢迎下优秀教案 欢迎下载 Step2:Have the

27、 class read the lyrics aloud as a poem.You may divide the class into two groups.Each group will read one line at a time.Make sure students can read rhythmically with a good sense of the rhymes!Step3:Play the audiotape.Have the class follow in their books.Step 4:Have the students practice singing the

28、 song repeatedly until they sing it well.Step5:Come to“Lets do It.”Class closing The remaining activities in the activity book The next reading in the student book Depending on how much time you have,you may wish to end the class by singing the song“Fill My Plate.”Lesson 29 An Easter Egg Hunt Learni

29、ng aims:1.The new words:basket,hide,hunt,everywhere,Easter,be gone 2.The important sentences:Debbie will have fun looking for them.I cant make eggs.Can you find them?Now my basket is full of eggs.Learning important and difficult points:1.fun have fun doing sth.Its fun to do/doing sth.2.辩析 find,look

30、for,hunt Learning method:Listen,say,read and write.Learning steps:Step 1.The new words Learn the new words one by one.Step 2.Looking and learning Look at the pictures and learn.“How to celebrate Easter?”Check to see if the students have previewed the text.To see if they understand the reading.Ask th

31、e class some questions like this:What is Easter Sunday?What is an Easter egg hunt?What is an Easter Basket?Step 3.Play the tape.Have the class follow the tape.Step 4.Explanation look for=hunt for have fun doing sth.make eggs=lay eggs Step 5.Sum up 1.Master the useful expressions.步虽然尽管分数的表达法口诀分子基分母序分

32、子分母加优秀教案欢迎下优秀教案 欢迎下载 2.Master Easter Day.Lesson 30 Keep the candle Burning!Learning aims:1.Master the new words:match,light,burn,use up,shallow,candleholder,oxygen,one-fifth 2.The important sentences:Fill the dish half full of water.As the candle burns,it uses up oxygen in the air.There is about one

33、-fifth oxygen in the air,so the water rises and fills about one-fifth of the jar.Learning important and difficult points:half 的用法 1.adv.“部分地，一半地”，2.adj.“半个的，一半的”half a year Learning method:Listen,say,read and write.Learning steps:Step 1.Reading Read the new words and write.Step 2.Listening Listen to

34、 the tape and find out the useful expressions and the difficult points.Step 3.Explain and writing 1.as 的用法 (1)asas (2)表方式“像，按照，如同”Run as I do.(3)表时间，当时候，一边一边；She sang as she worked.(4)表原因，因为(5)表让步，“虽然，尽管”2.分数的表达法：口诀：分子基，分母序，分子1，分母加 s e.g.one-fifth;two-thirds Step 4.Doing Master the steps of the expe

35、riment.Then ask the students to do it.Do it as describe.Step 5.Do exercises Step 6.Sum up 1.Master the words and expressions.2.Master the experiment.Step 7.Homework As you do it,describe it in English.Then do your experiment for the class.Lesson 31 Surprise your friends!Learning aims:1.The important

36、 sentences:Do you want to surprise your friends?步虽然尽管分数的表达法口诀分子基分母序分子分母加优秀教案欢迎下优秀教案 欢迎下载 The cardboard will hold the water up!Science is interesting!Learning important and difficult points:1.Surprise sb.to do sth.be surprised at sth to ones surprise surprised 与 surprising 区别 2.辩析：interested 与 intere

37、sting Learning method:Listen,say,read and write.Learning steps:Step 1.Let the students listen to the tape carefully with the following questions.“What did Danny describe in his e-mail?”Step 2.Ask the students to read the text fast and have a discussion about the e-mail in detail.Step 3.Divide the cl

38、ass into groups of four and ask each group to retell the passage with their own words:want to do sth;do an experiment;get ready;full of;cover with;turn over;Lesson 32 Unit Review Vocabulary:1.掌握词汇：science,experiment,fill,prove,force,surprised,examine,discover,explain,enough,liquid,solid,spoon,add,mi

39、x,pour,plate,taste,empty,full,basket,hide,everywhere,match,light,burn,use up 2.认知词汇：theory,jar,upside,observe,swimsuit,observation,conclusion,weird,mud,cornstarch,spoonful,dissolve,press,Easter,hunt,shallow,candleholder,oxygen,one-fifth Sentence pattern:look into,do an experiment,fill/cover with,ups

40、ide down,right side up,the force of the air,get wet,turn over,in front of,on top of,take off,be ready,take away,be surprised,strong enough,a spoonful of,dissolve in,keepdoing,halffull of,be gone,take off Grammar:The Simple Future Tense 一般将来时 shall I shall wear shorts tomorrow.Shall we have any class

41、es tomorrow?will There will be some showers this afternoon.Ill tell them my theory.Will you be free next week?Im sure I wont lose my way.be going to Is Danny going to hide an egg in his mouth?We are going to do a science experiment in class tomorrow.步虽然尽管分数的表达法口诀分子基分母序分子分母加优秀教案欢迎下优秀教案 欢迎下载 Im not going to get wet.Its going to rain.步虽然尽管分数的表达法口诀分子基分母序分子分母加优秀教案欢迎下