第10题: [单项选择]Although originally a German innovation, kindergarten got its real start in the United States as a movement to provide an improved learning environment for children. A. an easy B. a playful C. an open D. a better 参考答案:D 答案解析:[解析] improved是improve的过去分词，在句中起形容词作用，“改进了的、更好的”，与better意思相近；easy：容易的；playful：顽皮的、闹着玩的；open：公开的、开着的。
第25题: [单项选择]Sadly, the Giant Panda is one of the many species now in danger of A. migration B. extinction C. destruction D. extraction 参考答案:B 答案解析:[译文]可惜的是，大能猫是目前濒临灭绝的物种之一。
[题解]名词辨义：migration“移民，迁移”；extinction“灭绝，消灭”，与句意相符；destruction“破坏，毁灭，消灭”；e
