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单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,2016-5-19,#,U,NIT 3,电,E,LECTRI-CITY,What makes the bulbs light?,What makes the toy go?,What moves through the wires?,Say it if you know!,battery,(,电池,),bulb,(,灯泡,),complete circuit,(,闭合回路,),electricity,(,电,),wire,(,导线,),Lesson 1 Circuits,What makes the car run?,The batteries make the car run.,computer,fan,lam,p,Which objects use electricity?Tick,(,),.,pencil,torch,desk,Here is a bulb,a battery and some wires.Can you make the bulb light?,If the bulb lights,the circuit is a complete circuit.Electricity can only go through a complete circuit.A complete circuit has no gaps.,Draw your results.,Compare the two circuits.Tick,(,),or cross(,).,Does the bulb light?,Does it have gaps?,Is it a complete circuit?,Electricity can go through only a complete circuit.,A complete circuit has no gaps.,I made a complete circuit.,I compared circuits.,I saw electricity.,What do you need to make a complete circuit?Draw lines.,Look at this circuit with a buzzer.Is it a complete circuit?,How can you stop the buzzer noise?Talk with your friends.,Workbook,Which are complete circuits?Tick,(,).,
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