“我爱我班，因为她给我带来无限的温暖。她是我温馨的家园，她让我体味到友爱的甘甜。……”良好的班集体能（   ）

①为学生的身心健康发展奠定基础             ②为学生形成良好品质的重要条件

③对个人的发展起着重要的引导作用         ④促进学生追求真、善、美

比较左右两幅图，回答下列问题。

Safety must come first. During the coming summer vacation, some of us may travel to other places. To keep safe during the journey, we should      .  

     ①avoid eating raw(生的)and cold food

     ②obey the local traffic rules

     ③swim in the dangerous area

     ④never stretch our hands out of the window when taking a bus

     ⑤ tell strangers our personal information