听力题

单选题 The tallest trees can be found________.

A、 in Muir Woods
B、 Near Los Angeles
C、 in San Francisco
D、 Along the northern California coast

【正确答案】 D

【答案解析】

单选题 Many tourists visit Muir woods rather than other redwood forests________.

A、 because it has no admission fee
B、 because it is near San Francisco
C、 because it has a good view of the coast
D、 because it can be seen in one hour

【正确答案】 B

【答案解析】

单选题 The oldest documented age for a redwood tree is approximately________.

A、 350 years
B、 400 years
C、 800 years
D、 2,000 years

【正确答案】 D

【答案解析】

单选题 ________has contributed most to the redwoods survival.

A、 Absence of natural enemies
B、 Resistant bark and damp climate
C、 Coastal isolation
D、 Cool weather and daily fog

【正确答案】 D

【答案解析】