题目

句型转换。【1】I am better now.(一般疑问句)______ _____ better now?【2】My homework is at home.(对划线部分提问)_____ _______ _______ homework?【3】I was in bed yesterday.(对划线部分提问)______ ______ _______ yesterday?【4】He can talk.(否定句)He _____ ______talk.【5】Give me your homework。(同义句)______ ______ ______ _______ _______. 答案：【答案】【1】 Are you 【2】 Where is your 【3】 Where were you 【4】 can not 【5】 Give your homework to me. 【解析】略在平直公路上，汽车以15m/s的速度做匀速直线运动，从某时刻开始刹车，在阻力作用下，汽车以2m/s2的加速度做匀减速直线运动，则刹车后10s内汽车的位移大小为（ ）A．50mB．56.25mC．75mD．150m