第13题: [多项选择]You have received a birthday gift from a friend of yours. Write a note to acknowledge the gift and express your thanks. Marks will be awarded for content, organization, grammar and appropriateness. 参考答案:Dear Linda, What a surprise it is to get the birthday gift from you. I’m very happy to have your wishes. And the gift is so pretty, that I really love it. In fact, I’m going to give a birthday party tomorrow evening at home. I’d like you to come. Thank you again for the gift and your good wishes.
Yours,
Jenny
第14题: [单项选择]在变速直线运动中，下列关于速度，位移和加速度的说法中正确的是（） A. 加速度越大，速度一定越大 B. 速度减小时，加速度也一定减小 C. 加速度减小时，速度可能增大 D. 速度减小时，位移也一定减小 参考答案:C 答案解析:加速度表示速度的变化快慢，与速度、速度变化量的大小无关，C对；如果物体做减速运动，虽然速度减小，但位移是增大的，D错；故选C
