1. (2017八下·东莞期中) 先通读下面短文，掌握其大意，然后从各小题所给的A、B、C、D四个选项中，选出一个最佳答案。

    Elephants are the largest living animals on land. More than 5001 kinds of elephants were found on the earth over the last 55 million years. Only  2   kinds are still alive today: the African elephant and the Asian (or Indian) elephant. These elephants can only be found in  3   places. However, the older kinds lived in cold places a long time  4 . An example is the mammoth (猛犸象) — the largest hairy elephant.

    The mammoth was the largest living elephant, which was about seven tons. 5  the elephants today, mammoths had black or dark brown hairs 6 their bodies. All the mammoths had tusks (长牙).

    Scientists found most of the extinct (灭绝的) animals by 7  the fossils,  8  their bones and teeth that could be found. However, mammoths are quite different. During the Ice Age, mammoths died and were covered  9 in the ice. The ice kept them very well. So scientists could find the  10  body of the mammoth.