阅读材料，回答问题

【世界格局】

世界格局是指相对稳定的国际关系结构。20世纪，世界格局经历了多次大变动，对人类社会的发展产生了重要影响。请回答：

材料一：斯大林说：“在第一次世界大战以后，战胜国，主要是英国、法国和美国建立了一种新的国际关系制度，即战后和平制度。”

材料二：所谓“冷战”，是指20世纪40年代中后期至90年代初，以美苏两个超级大国以及分别以它们为首的两大集团之间在政治、经济、军事、外交、意识形态、文化乃至科学技术等一切方面的既非战争又非和平的对峙与竞争状态。——徐蓝《美国大战略与对外政策调整》

    English class is always full of fun. It's a tradition to put on an English play at the end of the year. Yesterday our English teacher gave us copies of the play.

    "Choose a character in the play whom you'd like to be," she told us. "This afternoon you will learn a few lines (台词) of this part for homework. Then tomorrow you can say those lines in front of the class. I'll decide who plays each part."

    I wanted to have one of the biggest parts in the play, so I chose the part of the king. He has a lot of lines to say. I learnt them by heart.

    This morning in our English class we had to say our lines. I acted the part of the king. When l was saying my lines, I put a lot of expressions into my acting. I thought I acted really well.

    Many of the students in my class couldn't act at all. They couldn't even read without making lots of mistakes. I was sure that l would get a big part in the play.

    However, the teacher gave me the part of a soldier. He has only one line. It is, "Yes, sir!"

    I was very disappointed. At the end of the lesson I went up to her and asked her why I had such a small part.

    "You put too many expressions in your acting," she said. "Good acting is not big acting. It is acting the audience can believe in." I think I know what she means.

As time _________,we know each other better.

某同学在学习“近代西方民主政治的确立与发展”这一专题时，制作了下面的学习卡片，请指出以下内容共有几处错误(   )