:2019年中考英语题型组合选练（外研版共10套）

2019年中考英语选练（2）（阅读理解）
 (限时:30分钟)
 
A　
话题    体裁    词数    难度    建议用时
动物保护    说明文    109    ★★    5分钟
RIVER DOLPHIN RUNNING OUT OF TIME
The Yangtze dolphin is the only kind of dolphin that lives in freshwater all its life. Scientists say that the finless freshwater dolphin that has lived in the Yangtze River for over 20 million years, will die out in 15 years. It’s in danger of disappearing forever.
Dangers:
■Dredging(挖掘) of their habitat
■Heavy boat traffic in the Yangtze River
■Insecticide(杀虫剂) and mercury(汞)
 
 
1. How long has the Yangtze dolphin lived in the Yangtze River?
A. For 20 million years.              B. For less than 20 million years.
C. For more than 20 million years.      D. F