题目

第二节 短文写作（满分25分）     2010年以来，我国相继发生了几起校园暴力事件，使国人为之震惊，震惊之余，大家都陷入了沉思：我们该如何加强校园安全呢？请你以How to improve school safety为题，写一篇120词左右的短文。 参考词汇：校园campus 保安security guard 答案：书面表达 How to improve the school safety School safety is a matter of great importance. Greaat efforts should be made by the school to make sure the campus is safe. Firstly, nobody should be allowed to enter the school without permission. The school guard should check everyone entering the school strictly. Besides, the school security guards should walk around the campus from time to tim（本小题满分12分）已知向量，且满足． （1）求函数的最大值及其对应的值； （2）若，求的值．