某同学绘制了下图所示的能量流动图解。下列有关叙述正确的是（　　）

下表为1927年《学灯》编辑部对社会上婚姻观念的抽样调查情况，由表格信息可看出当时婚姻观念（    ）

阅读对话，判断正误。

    Pedro: Hi, Li Lei. When do you start class in the morning?

    Li Mei: Usually at 8 o'clock.

   Pedro: It’s early. In Spain we start class at 9 o'clock.

   Li Mei: When do you usually eat dinner, Pedro?

   Pedro: At 9:30 or 10:00 p.m.

   Li Mei: Wow! That's too late. I always go to bed at 9:30. What do you do on the weekend?

   Pedro: I often play football with my friends. Sometimes I go shopping with my mum.

   Li Mei: Sounds interesting. I usually wash my clothes and clean my room at home.

共建班级集体
材料：进入初中，一切是那么的新鲜，一切又是那么的好奇，新环境、新同学、新集体、新体验，给了我们新的憧憬。为了加强同学们的互相了解，促进同学们之间的友谊，共创优秀班集体，七年级（1）班准备开一次主题班会。假如你是该班同学，请你完成下列任务：