题目

 下列现象中，属于电磁感应现象的是（    ） A.磁场对电流产生力的作用                     B.变化的磁场使闭合电路产生感应电流 C.插入通电螺线管中的软铁棒被磁化             D.电流周围产生磁场 答案：【答案】B 【解析】根据电磁感应现象定义，只有B属于电磁感应现象.完形填空（共15小题;每小题1分，计15分）Do you want to know my family? Let tell you. My is in Huangshan. There people in my family, . My father’s name Wang Dong. He is forty-five years old . He young. He is Chinese teacher, but he English. students think he is a good teacher. He loves me and I love him, . I think he is a good . My mother’s name is Li Ying. She is a worker. She is a very good worker mother. My name is Wang Feng. I’m thirteen. I’m a boy. I in a middle school. The school is my home. Sometimes I go to school . I study hard.1.A. I B. we C. me D. us2.A. house B. home C. study D. work3.A. are three B. is three C. are two D. is two4.A. my father, I and my mother B. my father, my mother and IC. my mother, my father and me D. I, my father and my mother5.A. is B. has C. are D. have6.A. look B. is C. looks D. likes7.A. the B. an C. 不填 D. a8.A. know B. knows C. is knowing D. knowing9.A. Their B. His C. My D. He’s10.A. too B. to C. also D. so11.A. student B. worker C. teacher D. boy12.A. for B. and C. but D. or13.A. work B. lives C. study D. teach14.A. near B. to C. on D. in15.A. by a bike B. by bike C. on bike D. bikes