According to the author, a born naturalist should first of all be______.
A．full of enthusiasm
B．full of ambition
C．knowledgeable
D．self-disciplined
听材料，回答94题
The author can't remember his relatives clearly because______.
A．he was fully occupied with observing nature
B．he was too young when he lived with them
C．he didn't live very long with them .
D．the family was extremely large
听材料，回答93题
The first paragraph tells us that the author______.
A．was born to a naturalist's family
B．didn't like his brothers and sisters
C．lost his hearing when he was a child
D．was interested in flowers and insects in his childhood
