训练16 2阅读理解+阅读填空+语法填空(建议用时30分钟)Ⅰ.阅读理解A
How can a creature weighing over 5 tons and normally taking 150 kilograms of food and 120 liters of water per day survive in a desert environment?
In the southwest African country of Namibia,and the Sahara lands of Mali further north,the desert elephant does just that.
Although not regarded as a separate species from the African elephant,the desert cousin differs in many ways.Their bodies are smaller,to absorb less heat,and their feet are larger for easier walking across sandy surfaces.They are taller,to reach higher branches.They have shorter tusks (象牙)g for water in riverbeds.
Desert elephants can travel over 70 kilometers in search for feeding grounds and waterholes,and have a larger group of families.They drink only every 34 days,and can store water in a “bag” at the back of their throat,which is only used when badly needed.Desert elephants are
careful feeders-they seldom root up trees and break fewer branches(粪便) of the female leader of
a group when facing food shortage.During drought they are unlikely to give birth to their young
but with good rains the birthrate will increase greatly.Desert elephants have sand baths(尿液) to make them muddy!ur weak planet,it can only be hoped that other animal species
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