Zheng He, a Ming dynasty explorer,       illness on his way back to China from Africa in 1433.

A. lived on               

B. tried out              

C. died of

行为训练：

（1）当父母生病时，

你会：________________________________________________                                              _   

（2）当你的好朋友上课不认真听课，做作业又抄袭别人的时候，

你会：___________ _                                                                                                                      

（3）当你在老师的帮助下，学习成绩有了很大提高时，

你会：___________________                                                                                                         

（4）当你被老师在同学面前公开批评时，

你会：_________________________________                                                                              

（5）当你在学校帮老师批改作业回家晚了，急性子的妈妈没有了解清楚以为你贪玩，劈头盖脸就对你一顿训斥，

你会：____________________________________                                                                      _