Looking back on my childhood, I believe that naturalists are born and not made. Although we were all brought up in the same way, my brothers and my sisters soon gave up their flowers and insects. Unlike them, I had no ear for music and languages. I was not an early reader and I could not do mental arithmetic (算术).

Before World War I we spent our summer holidays in Hungary. I have only the dim(暗淡的) memory of the house we lived in, of my room and my toys. Nor do I recall clearly the large family of grandparents, aunts, uncles and cousins who gathered next door. But I do have a crystal(水晶)clear memory of the dogs, farm animals, local birds, and above all, insects.

I am a naturalist, nor a scientist. I have a strong love for the natural world and my enthusiasm (热情) has led me into varied investigations (调查). I love discussing my favorite topics and enjoy burning the midnight oil reading about other people’s observations and discoveries. Then something brings these observations together in my mind. This has resulted in my publishing 300 papers and books.

But curiosity(好奇心), a keen (敏锐的)eye, a good memory and enjoyment of the animal and plant world do not make a scientist. A scientist, up to a point, can be made. A naturalist is born. If you can combine the two, you get the best of both worlds.

64.The first paragraph tells us the writer .

A.was interested in flowers and insects in his childhood

B.lost his hearing when he was a child

C.didn’t like his brothers and sisters

D.was born into a naturalist’s family

65.The writer can’t clearly remember his relatives probably because .

A.he didn’t live very long with them

B.the family was very large

C.he was too young when he lived with them

D.he devoted himself to observing nature

66.It can be inferred from the passage that the writer was .

A.a scientist as well as a naturalist

B.not a naturalist but a scientist

C.only a born naturalist

D.first of all a scientist

67.According to the writer, a born naturalist should first of all be .

A.good at maths B.full of enthusiasm

C.knowledgeable D.self-disciplined(自我约束)