约4690字。

　　Unit9 When was it invented?导学案
　　第一课时1a-Grammar Focus
　　一、词汇目标：
　　1、invent v.发明，创造，invent- invented –invented- inventing n. inventor 发明者，发明家， invention 发明，
　　eg: helpful inventions 有用的
　　Edison was one of the greatest ______________, he had 1093 ___________  in his life. Light ___________________ by him.
　　3、operate v.①操作，作业， operate the machine ,操作机器；battery-operated  adj.电池供电的，eg: a battery-operated tennis racket,一个电池供电的网球拍；②做手术：operate on sb  =have an operation on sb,给某人做手术；operator手术员，操作员
　　4、slipper n.拖鞋， a pair of slippers,一双拖鞋；electric slippers电动拖鞋；battery-operated slippers,电池供电的拖鞋；
　　5、heat v.加热， heat the milk ,加热奶牛奶；heated adj.受热的，heated scoop 加热的勺子。
　　二、短语目标：
　　1、 be used  for sth/doing sth =be used to do sth. 被用来做……
　　as… 当。。。用
　　by sb 被某人用
　　get/be used to sth/ doing sth 习惯于……
　　used to do sth 过去常常干某事
　　2、be made
　　From +材料     由。。。制造
　　in sp     （产地）        在。。。制造
　　by sb     （生产者）      被。。。人制造
　　up of+成员、成分          由。。。组成
　　into+产品                 被制成。。。
　　【巩固练习】
　　1、Personal computers      _____    in 1976.（invent）
　　2、Light bulb are used for          in the dark.（see）
　　3、It’s   __ for scooping really cold ice cream.（use）
　　4、I need four     ___ __  （battery） for my radio.
　　5，The sick boy____________ to the hospital by the police yesterday.（take）
　　6, They often clean their classroom after school.
　　Their classroom _____ often ______ after school.
　　7, I must repair the TV now.
　　The TV must _____  _______ now.
　　8, Chelsea Lanmon invented this kind of scoop.
　　This kind of scoop _____ ____ ______ Chelsea Lanmon.
　　9.When did you buy your motorbike?
　　When ______ your motorbike _______?
　　10,I saw him go into the library just now.
　　He _____ _____ _____ go into the library just now.