在探究性小组实验中，小勇同学取来一小块片状石灰石，放在酒精喷灯火焰上灼烧，维持红热状态3min～5min后，再冷却至室温。
⑴请你写出上述过程中可能发生的反应的化学方程式：____ 。
⑵请你设计一个简单的实验来证明你对最后得到的产物的判断：
①有如下猜想：（A）产物中已经形成生灰石；（B）产物中仍然含有石灰石。你的猜想是：____ （填“A”或“B”）。
②验证步骤：取适量产物放入烧杯中，先加入足量蒸馏水并充分搅拌，然后再____ 看到____ 。
③结论：证明你的猜想（填“正确”或“错误”）____  。
④你验证猜想的依据是（用化学方程式回答）：____ 。

用所给单词的适当形式填空, 未提供单词的根据上下文填入适当的词。

Once upon a time, a big lion lived in a zoo. One day, he ____ (be) very hungry. When Bill, the keeper, gave____his dinner, he ate it up quickly. Quite by mistake he ate up the keeper too. ____it was time for lunch, Bill did not show up. The other keepers sat down to eat, still wondering ____ young Bill was not there. ____ (sudden) there came a loud sound from the Lion House. They went ____ (see) what was the matter. There they saw the big lion ____ (lie) on the ground. He looked____ (big) than before. The keepers looked at one another and all of them said at once, “Of course! The big lion has eaten poor Bill.” They got two ____ (bottle) of medicine quickly, and then they made the big lion sleep for ____operation (手术). They cut up the front of his belly (肚子).Bill jumped out from it, looking quite all right.

比一比，再组词。

地____  ____   过____  ____    让____  ____

池____  ____   对____  ____   认____  ____