化学反应进行的快慢常用“化学反应速率”这一物理量来描述，关于化学反应速率的理解正确的是（　　）

          2016年12月31日，你所在的班级高一（18）班在教室举办了迎新晚会，在晚会上，全班同学与老师同台表演（唱歌、跳舞、演小品、变魔术等），假定你是校英语报的记者，请按下列要求用英语写一则100～120词的新闻报道。（1）时间、地点 、人物、活动；（2）师生们的反应；（3）简短的评论；（4）注意：报道的标题、开头和记者姓名已给出。

参考词汇：

    小品：witty skits．

    变魔术：play magic tricks．

Class 18 Celebrated the New Year

       On the afternoon of 31st, December, the party to celebrate the New Year was held in the classroom of ……

……

By Robert, School Newspaper．

Helen is 15 years old, and Joan is 15, too. So Helen is ____ Joan.

听短文，写出所缺部分。

    Hi! My name is Linda! I'm a middle school student. It was____lastSunday．After breakfast, my grandparents went for a walk in the park with their dog．They liked the____air there．My father____with his friend．My mother had to____．What about my brother? He read a book about____in his room．I practiced the piano in the living room．