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    What part of an elephant's body is used to cool the elephant? A. The tail. B. The trunk. C. The feet. D. The ears. (C) Dolphins Dolphins are mammals, not fish. They are warm blooded like man, and give birth to one baby, called a calf, at a time. At birth, a bottlenose dolphin calf is about 90-130 cms long and will grow to approximately 4 metres, living up to 40 years. They are highly sociable animals, living in groups, called pods, which are fairly fluid, with dolphins from other pods interacting with each other from time to time. Dolphins carry their young inside their womb for about 12 months. The baby is born tail first, and its mother will feed the calf for up to 2 years. However, the calf will stay with its mother for between 3-6 years, during which time it will learn all about feeding techniques, social interaction and group hunting. 【查看更多】

     

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    阅读理解。
          The elephant is the largest animal to walk on Earth. An elephant can carry a load           
    of 1200 pounds. They eat 300 pounds of food a day. An elephant baby can weigh 200
    pounds at birth. Elephants can live up to 70 years.
          Elephants can be trained to carry logs with their trunks, and have been used in the
    forestry industry in Asia for many years.     		                     
          Elephants use their ears as a cooling system. Blood flows through veins in the ears
    and as the elephant flaps his ears, the blood cools and flows through his body to cool
    off other parts.
          There are two kinds of elephants: the African elephant and the Indian elephant.
    African elephants can be identified by the larger ears. The African elephant grows up
    to 10 feet tall and weighs as much as 12,000 pounds.     		                     
         The Indian elephant grows up to 9 feet tall, and weighs up to 8000 pounds. It's easier
    to identify because of its smaller ears. Most circus elephants are Indian elephants.
    Another name for the Indian elephant is the Asian elephant.
    1. How much does a baby elephant weigh at birth?
    [     ]
    A. 70 pounds
    B. 200 pounds
    C. 300 pounds
    D. 1200 pounds
    2. Elephants also use their trunks for:
    [     ]
    A. drinking water
    B. eating
    C. working
    D. all above
    3. An Indian Elephant has ______ than the African Elephant.
    [     ]
    A. a longer tail
    B. a stronger trunk
    C. smaller ears
    D. bigger teeth
    4. What part of an elephant's body is used to cool the elephant?
    [     ]
    A. The tail.
    B. The trunk.
    C. The feet.
    D. The ears.

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