题目内容：

    Robert Vallieres hikes for miles, often three times a week, climbing the high mountains, just to get a glimpse of his beloved birds.

Many years ago, as a young engineer in the army, Vallieres was struck in the head in a task in Gulf War, which ended his military career and left him fighting for his life. He was 28 years old and battled stress, survivor’s guilt and PTSD (创伤后应激障碍). “When you’re disabled and you really can’t move too much, you’re wondering if death is nearby.” he said.

Despite his condition, Vallieres still had to be a father to his little boy-a curious child who helped jump start his love for birds.

One day, his three-year-old son noticed a bird and asked his father what kind it was. Vallieres bought a bird identification book and started learning along with his son. He bought some small telescopes and the two began observing birds together near their home in New Hampshire.

Then came another turning point. Vallieres saw an ad in the newspaper for a birding trip in New Hampshire’s White Mountains and signed up.

Now it’s his joy and renewed purpose to track and save the peregrine falcon and the bald eagle-two species nearly wiped out by the chemicals used for killing pests. It’s hard physical work for anyone, which needs patience, keen observation skills and time. But Vallieres is a natural at it, because his military training made him a perfect match, especially in reading maps and navigating.

Vallieres says not only does his volunteering help with physical fitness, but also his mental state. “To find rhythm or purpose in life besides myself,” says Vallieres, “I shouldn’t get stuck on myself but have a way out.”

1.What led to Vallieres leaving the army?

A.Life failure. B.Severe injury.

C.His son. D.Love for birds.

2.How did Vallieres start his new rhythm in life?

A.By climbing mountains often.

B.By buying some small telescopes.

C.By strengthening the military training.

D.By signing up for protecting birds.

3.Why is Vallieres suitable for the volunteer work?

A.For his habit of reading. B.For his experience in army.

C.For his devotion to career. D.For his talent in drawing maps.

4.What can be a suitable title for the text?

A.A Volunteer’s Story of Saving Birds

B.An Inspiring Story of Self-motivation

C.A Soldier’s Story of Healing through Birds

D.A Moving Story Between a Father and His Son