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Where can people find the tallest redwood trees? [br] [originaltext]M: Have you
Where can people find the tallest redwood trees? [br] [originaltext]M: Have you
游客
2024-09-19
34
管理
问题
Where can people find the tallest redwood trees? [br]
M: Have you ever visited a redwood forest? I recently had a chance to go to Muirwoods National Monument north of San Francisco.
W: I’ve never seen one. I really can’t imagine how big they are.
M: The coastal redwoods are the tallest living things. Some are more man three hundred and fifty feet high. But none of the trees at Muirwoods are that high. You have to go farther north in California to see the tallest trees.
W: You said that Muirwoods is near San Francisco? I guess it must be quite a tourist attraction.
M: Yes, it’s less than an hour’s drive away, so it’s easy to go to.
W: I’ve heard that many redwood trees are thousands of years old.
M: The oldest documented age for a coastal redwood is more than a thousand years. The trees at Muirwoods are 400 to 800 years old.
W: Why have they survived so long?
M: They have remarkable resistance to forest fires. Their tough, thick bark protects the trees during a fire. The coastal redwoods also like a damp, foggy climate.
W: Since Muirwoods is near foggy San Francisco, it must be ideal for the trees’ survival. I can’t wait to go and see them.
选项
A、The optimum climate.
B、Absence of natural enemies.
C、Coastal isolation.
D、Their bark’s protection against forest fire.
答案
D
解析
细节题。对话谈到红杉对森林火灾有很强的防御能力。它的坚硬的、厚厚的树皮在火灾中可以保护它。所以红杉寿命长的原因是它的树皮可以抵御火灾,即选项D。
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