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1、Chapter 4Chapter 4 Numbers : Everyones Language Teaching AnalysisContents:revise giving orders or instructions, strustions and statements about numbersKnowledge have got: Four kinds of imperative sentences How to calculate numbers. Teaching aimsKnowledge:to get to know instructions and statements ab
2、out numbersAbility :to get to know how to calculate numbersMorality: a.to improve their ability of calculating numbers. b.to let Ss know we cant live without numbers. We should know about numbers and use them correctly in our life.The key and difficult pointsThe key points : to get to know how to us
3、e instructions and statements about numbers.Methods: let Ss talk about the key words several times and make sentences with them.The key and difficult points The difficult points:the special imperative sentences about the word “let”Eg: 1.let sb(not) do sth. 2.let us finish the homework, will you? 3.l
4、ets finish the homework, shall we?Methods: 1.talk about the imperative sentences. 2.look at some examples. 3.do some exercises.Analysis of students Most of the students can not learn and express English well.They want to get some pleasure from studying English.So we shoud revise the words and knowle
5、dge that we learned before. Do more exercises to let Ss to remember them . Its happy for them to use words and language they had learnt .Teachers should pay more attention to most of the Ss.Try to make them remember the new words and language in class by making the class more interesting . For examp
6、le: play some games.Teaching Steps Step 1: Revision Review the imperative sentences.1.Talk about and revise the imperative sentences, give some examples at the same time .2. Do some exercises and check them in class.*Purpose: To revise giving orders or instructions Let Ss use the imperative sentence
7、s freely.祈使句概述：祈使句表示要求，命令，劝告，建议，号召，祝愿或叮嘱。构成祈使句的主语一般是第二人称you,但往往省略。构成：1）动词原形位于句首。 e.g. Sit down. Be quiet. Look here! Go away! 2)祈使句的否定式在动词原形前加do not 或dont,即结构为：Dont +动词原形。 e.g. DO not sit down. Dont run.3) Please 用在祈使句中使其变得更有礼貌，更客气，也更委婉些。Please 可放在句首（尤其是否定句）；也可放在句尾，但要用逗号隔开。 e.g. Please stand up. Sta
8、nd up, please. Please dont make a noise.4) 可在句首加称呼语。 e.g. Jane，(please) dont shout. May， (please) be quiet.Let 引导的祈使句。 1）Let sb. (not）do sth.e.g. Let me try, please. Let everyone do his best. 2) Lets+动词原形, 包括说话者在内。反意疑问句用shall we?e.g. Lets go. Lets do it ourselves. 3) Let us+动词原形,不包括说话者在内。反意疑问句用will/
9、wont you?e.g. Let us finish the homework first ,will you？ 在肯定的祈使句句首加do, always,never来加强语气。 e.g. Do take care !一定（务必）要小心。 Always remember what I said. 1.-Call me when you get home.-OK,_. A.I must B.I can C. I will D.I may2.Jim,_ me a hand.A.gives B.is giving C.give D. will give3.Let me_ on duty today
10、. A.am B./ C.be D. do4.lets _our time.A.not wasteB. no wastingC.not to wasteD.no waste5.-_higher,and you will see the house.-OK.A.If you stand B.To stand C.When you stand D.Stand6._forget to write to me when you _get there next Wednesday.A.Dont; will B.Please; will C.Please;/ D.Dont;/7.Please_do it.
11、A. he B. he let C.let him D.him8._come in , please.A.Will B.Do C.Wont D. Did9._careful.A.Be do B. Do be C.Not D.Not do10._let anyone open the door.A.Dont B.Will C. Not D.No11._.She is only a child.A.Let her not doing such a thingB.Let her not to do such a thingC. Not Let her do such a thingD. Dont l
12、et her do such a thingTeaching Steps Step 2: Play a piece of beautiful song . Tell Ss all of us know three languages ,his own language,the international languages of music and numbers . After listening to the music ,We will learn how to use numbers today .*Purpose: Let Ss come into what we will lear
13、n today Teaching StepsStep 3 :Play a game : at first, I do some actions and Ss speak out some words . then I say some words, all of the Ss do some actions.Purpose:Revise the words we learnt yesterday . They are very important for us ,because we need to use them to make sentences. In this way ,Ss wil
14、l not feel boring .Teaching Steps Step 4Learn some new words :Look at the front and speak out the words .Purpose:To let Ss learn the words better by showing the pictures and talk about sth about numbers.2390a decimal number0.8234Teaching Steps Step 5Solve some problems about numbers. Explain how to
15、say these problems about numbers . Use some pictures for some examples.Purpose: The part is the most important in this lesson, so we use some interesting pictures to make better teaching effect.A + BAdd A and B, and we get C.If we add A and/to B, we get C.A added to B equals C.A plus/and B equals C.
16、Add A and BA + B =CA - BIf we subtract B from A, we get C.Subtract B from A, and we get C.B subtracted /taken from A equals C.A minus B equals/is C.Subtract B from AA B = CA BMultiply A by B, and we get C.If we multiply A by B, we get C.A multiplied by B is C.A times B is c.Multiply A by BA B = CA B
17、Divide A by B, and we get C.If we divide A by B, we get C.A divided by B equals C.Divide A by BA B = CTeaching Steps Step 6Do some exercises about numbers :Do Exercise B1 on Page 53. The main aim is to get the language right ,not the arithmetic .1. Work in pairs . S1 tells S2 do the following sums u
18、se sentences in table 1.S2 listens to S1s instructions and responds.2.Check the answers together.Purpose : to motivate Ss to talk about the calculating of numbers in English .HomeworkMake eight problems about numbers .With plus ,add and ;subtract from , minus ;multiply by , multiplied by ;divide by
19、, divided by .Purpose : To practise writing the problems about numbers.Blackboard Design Words and phrases :add and plus subtract from minus multiply by multiplied by divide by divided by Sentences 3 + 5 = 8Add 3 and 5 equals 83 plus 5 equals 89 - 6 = 3 subtract 6 from 9 equals 3 9 minus 6 equals 312 2 = 24multiply 12 by 2 equals 2412 multiplied by 2 equals 2415 5 = 3divide 15 by 5 equals 3 15 divided by 5 equals 3 Thank you for your coming
