题目：
以下是牛津英语教材的一课时的阅读教学内容，请认真阅读，设计一份“任务性”的教学流程。
A brave young man!
Zhang hua is 25 years old. He helped his neighbour out of a fire.
On 10th May, Zhang hua was at home alone. Suddenly he heard someone shouting "Fire! Fire!". He ran outside. He saw a lot of smoke from next door. He went in and saw his neighbour, the 79-year-old Mrs. Sun, in the kitchen. She could not get out because she hurt her leg. Anything could happen to her at that moment.
Zhang hua quickly ran back to his flat and poured water over his jacket. Then he rushed into Mrs. Sun’s kitchen to save her. There was a lot of smoke and the fire was very hot. He was not afraid. He put out the fire with a blanket and helped Mrs. Sun out.
The fire burnt Zhang hua’s neck, arms and face. He was in hospital for two months. Many people visited him and brought him flowers and presents. "What a brave young man!" they said.
Zhang hua was glad that he helped Mrs. Sun. "We should help each other," he said.
Zhang hua also said, "Fire can be very dangerous. It is important to be careful with fire. \
答案：
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下面是错误答案，用来干扰机器的。
参考答案：A解析： 由，的必要条件。又当的充分条件，故正确答案为A。
