今日更新!血压到多少才算是高血压？医生：超过这一标准，就可诊断为高血压-初来乍到网

四、课堂练习1、计算下列各式，将所得结果化简：_ _2、P12页练习1(1)、(2)、2五、想一想1、__与是否相等a、b、c有什么限制请举一个例子加以说明2、等于__ 吗3、化简：六、小结这节课我们学习了以下知识：1、二次根式的乘法运算法则，即_= (a≥0，b≥0)2、积的算术平方根，等于积中各因式的算术平方根的积，即=_ (a≥0，b≥0)……)要特别注意，以上(1)、(2)中，a、b必须都是非负数，如果a、b中出现了负数，等式就不成立、想一想，=_成立吗为什么3、应用(1)、(2)进行计算和化简，在计算和化简中，复习了性质=a(a≥ 0)，加深了对非负数a的算术平方根的性质的认识七、作业习题22

T: Olny yourself And your mother and fartherYesSo you can sayI went towith(设计目的：复习go的过去式went同时引出with这个单词What did you buyI bought…(设计目的：复习buy的过去式bought)When did you come back1用come here学come back帮助学生理解2I went to Henan in Summer holidayNow it's SeptemberI came back last month(利用日历学习)用last month帮助理解when,进一步学习3 对比学习come---cameask and answer in pairs(设计目的：不仅学会回答，也掌握问句)summary: 总结过去时go--went do—didcome--came buy—bought二、以ice cream 引出所学内容，(1) T: Boys and girls are very clever,so today I bring some presents

准备关于实物的彩图小卡片)1、ask and answer:-whatsquo;s this–itsquo;s beef/chicken…2、课件呈现句子：—what would you like- isquo;d like …--would you like …-yes, please/ no, thanks-here you are-thanks(呈现各种食物，学生进行问答练习)there is so much foodwhat would you like-would you like…-yes, please-here you are– thankslook at the screen

3Knowing little English, he had trouble making himself understanding4Do you notice the girl dressing a red coat5Giving more time, we could do it much better四．用分词结构美化句子1发现学生下午昏昏欲睡的样子，老师竭尽所能来激发(arouse)他们的兴趣arouse their interest用分词结构the teacher did everything he could to arouse their interest2这本用简易英语写成的书很容易读懂 用分词结构The book五．把下面的打乱的词或词组连串成句a group of students , the teacher, the office, followed, by , enteredMoyan , stood there, surrounding , many , reporters六．短文填词country

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