题目

            第Ⅱ卷  非选择题  (共60分） 第一节：单词拼写（每词1分，满分10分） 1.The professors p_______ at the meeting stated their opinions about the problem. 2.By a strange ______ （巧合）we happened to be traveling on the same train. 3.The three _______ ( 候选人) should hand in their information before the contest. 4.Yesterday the old lady ______ (目击) the car accident and knew there were five killed in it. 5.At the meeting nobody would be the first to give his opinion and it was Sally that broke the s_______. 6.We have _______ (相似的) t一个物体开始静止在O点，先使它向东做匀加速直线运动，经过5s，使它的加速度方向立即改为向西，加速度大小不变；再经过5s，又使它的加速度方向立即改为向东，加速度大小不变…，如此反复，共历时40s，则这段时间内（　　）A．物体时而向东运动，时而向西运动B．物体往复运动最后停在O点C．物体运动时快时慢，一直向东运动D．物体速度一直增大