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?