生物圈中的动物必须直接或间接地以消耗____合成的____来维持生活，所以，动物是生物圈中的消费者．

读一读Tom的日记，根据日记内容，选择正确的答案。

June 8, Friday    rainy

    Our school had an English Fun Day today. My classmates and l went to the School Hall to play English games. Some Grade 6 students were helpers and they showed us how to play the games.

    Peter and l were in a spelling(拼写) game. He made many mistakes but I did very well. I got some sweets and we shared(分享) them.

We did not like the matching(配对) game. We had to match some words to pictures. It was not difficult but boring.

    We liked the reading game. I was slow when I read out the sentences. But Peter was very quick. He won the first prize. Miss Wong gave him a photo album. He can put his photos in. We had a good time.

Anna doesn't like playing computer games. Sometimes she does it ____ (simple) to relax.

材料一：战爆发后，日本出兵山东。1917年1月，日本外相召见英国驻日大使时，提出“把德国在山东的权益转让给日本”的请求，英国复函同意。1919年6月，巴黎和会满足了日本这一要求。

——《山东问题的由来及解决》（1914~1922）

材料二：在巴黎和会上，顾维钧代表中国进行强有力地辩驳。他指出：“三千六百万之山东人民，有史以来为中国民族，用中国语言，信奉中国宗教”；“胶州为中国北部之门户，亦为沿岸直达国都之最捷径路”；“以文化言之，山东为孔孟降生、中国文化发祥之圣地”；“中国之不能放弃山东就像基督教之不能去耶路撒冷一样。”

——《顾维钧：雄辩于巴黎和会上》

材料三：在1921年11月召开的华盛顿会议上，英国为了自身利益不再支持日本。《四国条约》签订后，在美英斡旋下，1922年2月中日两国签署《解决山东问题悬案条约》，规定胶州湾租借地由中国收回，胶济铁路由中国赎回。

——《20世纪世界外交资料汇编》

我国进入社会主义初级阶段的标志是（        ）