第Ⅰ卷
第二部分阅读理解(共两节，满分40分)
第一节(共15小题:每小题2分，满分30分)
阅读下列短文，从每题所给的四个选项(A. B. C和D)中，选出最佳选项，并在答题卡上将该项涂黑·
A
Dolphins (海豚) are not fish, but warm-blooded animals. They live in groups, and speak to each other in their own language. In this way they are like other animals, such as bees and birds. But dolphins are very different from almost all land animals. Their brain is nearly the same size as our own, and they live a long time --- at least twenty or thirty years.
