第 16 至 20 題為題組
Crocodiles live in swamps or on river banks and catch their prey in the water. They have flattened bodies and
tails, short legs, and powerful jaws. Small crocodiles 16 fish and small aquatic animals; larger ones also catch
land mammals and birds that approach the water. Members of some large species sometimes attack and eat humans.
Crocodiles in America are specifically called American crocodiles, with tough, scaly skin. They are
gray-green or olive-green with long, slender snouts, which distinguish them from their cousin, the alligator.
Also 17 the alligator, the fourth tooth on the bottom jaw of the American crocodile will be shown when its
mouth is closed. American crocodiles inhabit saltwater habitats so they are typically found in coastal wetlands,
coves, and canals. Decidedly 18 aggressive than the infamous Nile and Australian crocodiles, American
crocodiles are shy, reclusive and seldom seen by people. Today, loss of habitat to human development, illegal
killing and roadkill are the greatest 19 faced by American crocodiles. 20 , as sea level rises due to
climate change, a portion of crocodiles’ coastal wetland habitat may face destruction. It is predictable that the
number of American crocodiles will decrease if this situation gets worse.
【題組】17. (A) familiar to (B) similar to (C) different from (D) based on
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