题目

全国中小学安全教育平台”和物理学科都强调了安全用电。下列做法符合’安全用电要求的是:A. 选用插座时,所有家用电器都使用两孔插座B. 更换灯泡时,不需断开电源开关C. 有人触电时,首先切断电源D. 家用电器电线绝缘皮破损了仍继续使用 答案:【答案】C【解析】A. 选用插座时,有金属外壳的家用电器应使用三孔插座,故A错误;B. 更换灯泡时,应断开电源开关,以防触电,故B错误;C. 有人触电时,首先切断电源,故C正确;D. 家用电器电线绝缘皮破损了不能继续使用,否则容易发生触电,故D错误。故选C.句型转换(10分,每空1分) 1.I also go to the cinema. (改为否定句) I __________ go to the cinema, ___________. 2.He is going to take care of his grandma. (改为同义句) He is going to _________ _________ his grandma. 3.He will come to ShangHai  in a month. (就划线部分提问) ________  _________ will he come to ShangHai 4.she has been to the Summer Palace before. (变反意疑问句) she has been to the summer Palace before, _______ _______? 5. Can you tell me how I can get to the station? (改为同义句) Can you tell me  _______  _______get to the station?
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