下列实验现象描述正确的是

A．铁丝在氧气中燃烧，火星四射，且有黑色固体生成

B．铝丝在空气中加热，生成黑色固体

C．木炭在氧气中燃烧，生成黑色固体

D．将CO₂通入紫色石蕊溶液中，溶液变为红色

根据句中所给汉语，完成下列句子。（每空一词，每空0.5分，共10分）

小题1:一旦吉姆下定决心，我们中没有人能说服他。

Once Jim                                 , none of us can persuade him.

小题2:看起来似乎三分之一的游客死于酒店里的这场大火。

                      one third of the visitors were killed in the big fire in the hotel.

小题3:汤姆一听到他得了癌症，感觉自己好像已经被判了死刑。

After knowing that he’d got cancer, Tom felt as if he had                         .

小题4:听到她儿子上台执政的消息，她突然大哭了起来。

On hearing that her son came               , the woman               tears.

小题5:三分之二的村民在地震中遇难或受伤。

Two-thirds of the villagers                                 during the earthquake last night.