锋面性质不同，产生的天气现象也不相同，读下列两锋面图，完成下列各题。

阅读理解

     There are some very good things about open education. This way of teaching allows students to develop their own interests in many subjects. It has open classrooms, open environment, open courses, open attitudes (态度), and open resources(资源).It helps students get a happy school life.

    Open education allows students to be responsible for their own education. Some students do badly in a traditional classroom. The open classroom may allow them to enjoy learning. Some students will be happier in an open education school. They will not worry about grades or rules.

    But many students will not do well in an open classroom. For some students, there are too few rules. These students will do little in school. They will not make good use of open education.

    Because open education is so different from traditional education, these students may have a problem getting used to making so many choices.

    For many students, it is significant to have some rules in the classroom. They worry about the rules even when there are no rules. Even a few rules will help this kind of students. The last point about open education is that some traditional teachers do not like it. Many teachers do not believe in open education. Teachers who want to have an open classroom may have many problems at their schools.

一位伟人要求自己的孩子一定要做家务，包括打扫地板、收拾玩具柜等，而“工资”只有一元钱，这个“工资”就是她们的零花钱。这位伟人的“育儿经”启示我们              

下列关于地球大小的数据，错误的是（　　）

阅读下面材料，回答后面问题。
材料一：八大的路线是正确的。但是……没有能够在实践中坚持下去。八大以后，我们取得了社会主义建设的许多成就，同时也遭到了严重挫折。
（1）材料中提到我国社会主义建设遭到“严重挫折”， 这主要是因为党中央错误地发动了哪两场运动？遭到“严重挫折”的根本原因是什么？
材料二：改革开放三十多年来……社会主义中国的面貌……发生了历史性变化……从农村到城市、从经济领域到其他各个领域，全面改革的进程势不可挡地展开了。
（2）材料中的“历史性变化”的起点是什么？在农村的改革实行的是什么政策？
材料三：1998年中央提出要抓紧研究和实施“走出去”的开放战略，积极开拓国际市场和利用国外资源，以利增加我国经济发展动力和后劲。……2001年中国加入世界贸易组织，充分展示了中国顺应经济全球化潮流、主动参与国际竞争与合作的积极姿态。
——摘编自《国际商报》
（3）据材料回答我国政府为实施“走出去”的开放战略采取了什么重要举措？与此相适应，我国经济体制出现了什么重大变化？
（4）我国的社会主义建设既有成功的经验，也有失误的教训，你从中得到怎样的认识？