| NSEFC2B Unit 13 单じ毙3(毙蔼英语册毙毙学设计) |
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Teaching Aims: 1.Review Modal Verbs. 2.Do some exercises to review some important words learnt in the last period. Teaching Important Point: Review Modal Verbs. Teaching Difficult Point: How to help the students correctly use the Modal Verbs. Teaching Methods: 1.Review method to help the students remember all the Modal Verbs they have learnt before and use them correctly. 2.Individual work or group work to make every student work in class. Teaching Aids: 1.the multimedia 2.the blackboard Teaching Procedures: 兂Step ⒐ Greetings and Revision (Greet the whole class as usual.) T:Yesterday we learned a passage about water and now who can retell the passage in your own words? S1:Let me try. T:Well done.Thank you for your performance. 兂Step ⒑ Word Study T:Now please turn to Page 21.Look at the first part of Word Study.There are some words learnt in the last period,but the letters of these words are in the wrong order.Now I will give you a few minutes to put the letters in the correct order. (A few minutes later,teacher may ask some students to spell their answers and give the Chinese meaning of each word to all the students.Finally teacher writes the correct words on the blackboard.) 1 otmas atoms 2 tanomu amount 3 sdlio solid 4 oasbrb absorb 5 cgrnetidea centigrade 6 sag gas 7 nhroygde hydrogen 8 yoxgen oxygen 9 assm mass 10 fatol float T:Good work.Next look at the screen and try to complete the following sentences by filling in the blanks with the proper words.The first letter has been given and some words can be used more than once.If you need,you can have a discussion with your partner. (Teacher uses the multimedia to show the following sentences on the screen.) 1.The water molecule is made up of two h_____ atoms and one o_____. 2.Water is a l_____ at room temperature,but it turns into a s_____ when the temperature drops below 0 and into a g_____ when heated above 100. 3.An a_____ is the smallest part of any living or nonliving thing. 4.Places by the sea often have a s_____ climate that is never too hot or too cold,because water can a_____ and release a lot of heat. 5.Soil can a______ water,so it helps keep water from flowing away. 6.Marine scientists study the r_____ between living creatures and their habitat in the ocean. 7.Salt water has a lower f______ point and is heavier than fresh water. (Teacher gives students enough time to prepare and then check their answers.) Suggested answers: 1.hydrogen,oxygen 2.liquid,solid,gas 3.atom 4.steady,absorb 5.absorb 6.relationship 7.freezing 8.float 兂Step ⒒ Grammar T:Up to now we have learnt many modal verbs.Who can tell me what they are? Ss: (Teacher asks some students to write their answers on the blackboard.) Modal Verbs: can/could,may/might,will/would,be able to,must,should,have to,need,shall,ought to,had better. T:Very good.Then do you know how to use them? S2:I know ¨should〃 can be used to give others some advice. S3:I know when I want to borrow a book from my friend,I can use ¨may〃. T:Your answers are very good.There is a conclusion about modal verbs on the screen.Letˇs look at it. (Teacher uses the multimedia to show the conclusion on the screen.) Modal Verbs: Possibility:can/could,may/might Ability:can/could,be able to Requests:can/could,will/would,would like Necessity:must,have to,have got to,need Certainty:must,will,should Permission:can/could,may/might Suggestions:could may/might,shall Advice:should,ought to,had better T:From the chart we can see modal verbs can be classfied into eight groups by their usages.Are you clear about the classification? Ss:Yes. T:OK.Now look at the first part in Grammar.Finish the exercises according to the class fication of modal verbs.If you need,you can discuss with your partner.In addition youˇd better make it clear why you choose ABC,or D.Are you clear about the requirements? Ss:Yes. (Teacher gives students enough time to finish the exercises.Then deals with them with the whole class.) T:Are you ready? Ss:Yes. T:OK.Whoˇd like to tell me the answer to the first one? S4:I think ¨A〃 is right. T:Can you tell us the reason why you choose ¨A〃? S4:Because the speaker wants to express his/her request.Among ABC and D,only A can be used to express request. T:Very good.What about the second one? S5:¨May〃 is right,I think,because the sentence is used to ask for permission. T:Congratulations!Who can answer the third one? S6:The phrase ¨wants to〃 express a state of being necessity.So I think ¨C〃 is right. T:Well done.Itˇs turn to do the fourth one.Who can try? S7:Iˇm not sure,but I want to have a try.Is ¨C〃 right? T:Why did you choose ¨C〃? S8:I think the first sentence expresses some necessity and the second one expresses guess. S9:I donˇt think so.Because ¨must〃 canˇt be used in negative sentences to express guess. S8:Oh,Iˇm sorry.I forgot it.I see,the correct answer is ¨D〃. T:Excellent! (Teacher encourages students to show their opinions about each one,and then teacher gives the correct answers and some necessary explanations.) Suggested answers: 1.A 2.A 3.C 4.D 5.A 6.A 7.A 8.B 9.A T:You have finished the first part successfully.Now letˇs go on with the second part.Do you have confidence to finish it? Ss:Yes.Of course we have. T:OK.This is a letter from Mary to John.Maybe John met some problems,so Mary wants to write a letter to help him.But Mary doesnˇt know how to use the modal verbs correctly.She wants you to help her finish the letter.Before you finish the letter,read it to get the general idea of it first and then answer the questions on the screen. (Teacher uses multimedia to show the questions on the screen.) 1.Can you tell from the letter what Johnˇs problem is? 2.Do you agree on the advice that Mary gives to him?Why?What would be your advice? (Teacher gives students a few minutes to read the letter,and then checks their answers to the questions.) T:Whoˇd like to answer the first question? T:Well done.Do you agree with him? Ss:Yes. T:What about the second one? S11:Iˇd like to answer the question.I donˇt agree to the advice that Mary gives to him.Because if he finds another job,maybe it means that he really stole something at the meat factory.I think he should tell the manager that he didnˇt do it and advise the manager to call in the police to make it clear. S12:In my opinion,heˇd better try to find out who is the real thief to prove that he didnˇt do anything wrong. T:I think your suggestions are all very helpful to John and I hope he can find a good way to deal with the problem.Now you are clear about Johnˇs problem.Itˇs your turn to help Mary finish the letter.Maybe there are more than one answer for some blanks.If you have some difficulties,you can discuss with your partner.Five minutes later,I will check your answers. Suggested answers: can/will/should,may not/might not,must,could/should,might/would,will,might/may/could/would,might,would/could/might,should,will 兂Step ⒓ Summary and Homework T:Today,weˇve reviewed some new words learnt in this unit.In particular,we have reviewed the usages of modal verbs.After class,do more exercises to master them better.Time is up.Thatˇs all for today.See you tomorrow. Ss:See you tomorrow. 兂Step ⒔ The Design of the Writing on the Blackboard Unit 13 The water planet The Third Period Words: atom,amount,solid,absorb,centigrade gas,hydrogen,oxygen,mass,float Modal Verbs:can/could,may/might,will/would,need,must,have to,shall,should,ought to,had better 兂Step ⒕ Record after Teaching |
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