单选题
What was the young man doing when he heard someone shouting for help?
A. He was riding his bicycle across the bridge.
B. He was walking near the river.
C. He was swimming in the river.
【正确答案】
A
【答案解析】[解析] 17-20
A twelve-year-old boy was saved in a river by a young man, whose name is still unknown. Yesterday morning the young man was riding across the bridge on his bicycle when he heard someone calling "Help!" in the river. He quickly got off his bicycle and found a boy was in danger in the river. He jumped into the river immediately and carried the boy to the bank. He laid the boy on his back and a doctor passing by gave him a mouth-to-mouth breathing. When the boy came back to life, the people around found the young man had left. He didn't tell what his name was and where he worked. It is said that he is a tall thin man and about 20 years old.
[解析] 题目问男士听到呼救的时候正在做什么?从材料中我们可以明确地听到相关的信息：the young man was riding across the bridge on his bicycle when he heard someone calling “Help!” in the river，答案很明显选A，他正在骑车通过一座桥。
单选题
How was the boy when he was carried onto the bank?
A. He might have stopped breathing.
B. He lay down on the ground with fear.
C. He went away without saying anything.
【正确答案】
A
【答案解析】[解析] 这个男孩被救上来的时候情况如何?材料中讲到医生给男孩进行了人工呼吸，(gave him a mouth-to-mouth breathing)，可以看出当时男孩几乎停止了呼吸，答案选A。
单选题
What do we know about the young man?
A. He is a stranger in the city.
B. He is not so good at swimming.
C. He is a tall thin young man.
【正确答案】
C
【答案解析】[解析] 对于这位救人的小伙子的描述，材料的最后提到he is a tall thin man and about 20 years old，所以答案是C。
单选题
Which of the following is true according to what you hear?
A. A doctor helped give First Aid to the boy.
B. The people around carried the boy to hospital.
C. The boy left immediately after he came back to life.