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1、Unit 5 When was it invented?,Section A (Tuesday) Tian Jiabing Middle School Mary,Learning aims（学习目标） 1. learn the first ten words of unit 9. 2. Students can read the words correctly. 3. Learn to use the use of the words and finish the exercises.,invent v. 发明，创造, Edison invented the light bulb.,The t
2、elephone was invented by Bell in 1896.,invent 没有的东西被创造出来。,区别：discover 原来已存在的东西被找到。,Who was the telephone invented by?,拓展：inventor n. 发明家 invention n.发明,calculator,He is calculating a math problem with a calculator.,v.计算,n.计算器,be used for（要求学生造句）,be used for sth/doing sth =be used to do sth. 被用于,get/
3、be used to doing sth 习惯做 It is used for cleaning the classroom/It is used to clean the classroom.,used to do 过去经常做某事 He used to be shy ,but now he is outgoing.,be used as 把用作 English is used as a second language,used sth to do 用做 We use the machine to do something,scoop v. 用勺舀 n. 勺子，球形勺，长柄勺,原文重现： Sc
4、oop really cold ice cream with a scoop,adjustable adj.可调的 （要求学生造句）,原文重现：shoes with adjustable heels （后跟）,operate v.操作，操控，运作 ,原文重现：battery-operated slippers,I dont know how to operate this machine.,operate on sb./sth.(for sth.)给某人做手术，开刀,The doctor is going to operate on her this morning.,拓展：operation
5、 n.手术，运作，操作operator n. 操作员，接线员,heat v. 加热 n. 热度，温暖,heated adj. eg. heated ice cream scoop 勺子 （heat v.加热）,Exercises: Who _(invent) the light bulb. When_ the telephone _(invent) by Bell? The machine was his _(invent) Its _(use) for _(scoop) really ice cream. We often _(use) machine _(wash) clothes. He _(use) to sleep after supper, but now he _(use) to _(walk) The doctor _(operate) on the patient this weekend. “Hold on , please.” The _(operate) said. Could you show me how to _ this new recorder? A. operate B. listen C. look D. learn,Thank you!,