Turkeys (the birds) are originally from the Americas. The Europeans knew a similar looking and tasting bird, known nowadays as G

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问题    Turkeys (the birds) are originally from the Americas. The Europeans knew a similar looking and tasting bird, known nowadays as Guinea fowl, originally from Africa but introduced through the Ottoman Empire, who was called the turkey-cock or turkey-hen. When the Europeans arrived to the Americas and found the bird we now know as turkey, they called it turkey by association.
   Ben Franklin preferred them to bald eagles. While Ben Franklin never actually endorsed them for the position of national bird (as some believe) , he did praise them as being " a much more respectable bird" in general than the bird of prey bald eagle. He also added, " He is besides, though a little vain & silly, a Bird of Courage, and would not hesitate to attack a Grenadier of the British Guards who should presume to invade his Farm Yard with a red Coat on.
   Wild turkeys feed on the ground, which may have something to do with the myth that they can’t fly. They have to fly, however, because they roost in trees at night. Some accounts say they can soar up to 55 mph for short bursts.
   A gobbler’s droppings usually take the shape of a "J" or sometimes a question mark. A hen leaves droppings that more closely resemble a spiral that is all in one pile.
   Americans particularly love to eat turkey breast meat, so turkeys have been selectively bred over the years to have bigger and bigger breasts. Artificial insemination is a required part of turkey breeding as the modern bird is too heavy and misshapen with its massive breast area to procreate the old-fashioned way.
   Turkeys’ heads actually change colors from red to pink, white, blue, or gray depending on its mood. So you could say that they blush!
   Turkeys have a 270-degree field of vision (360 when they rotate their heads) , can see in color, and see three times more clearly than 20/20.
   Turkeys climb up into trees when it’s time to go to sleep, and throughout the night they keep watch over one another to make sure no predators are lurking. In the morning, they gobble softly to each other as a form of headcount to make sure everyone made it through the night.
   Turkeys do a lot more than gobble. Their loudest sounds can be heard from more than a mile away. Each turkey sounds slightly different than the next; this is how they tell each other apart.
   Turkeys can form a visual map of their territory, remembering tiny details of an area exceeding 1,000 a-cres even after more than a year apart.
   The heaviest turkey ever recorded reportedly clocked in at a whopping 86 pounds. Nearly 50 million turkeys are expected to be eaten on Thanksgiving this year.
Why do turkeys gobble?

选项 A、They gobble to herald the break of day.
B、They gobble to show who is louder.
C、They gobble to see who is not around anymore.
D、Only male ones gobble.

答案C

解析 事实细节题。第八段提到,火鸡在树上睡觉,整晚彼此照看以确保没有潜伏的捕猎者,早上它们像报数一样轻叫,确保每一只都安然度过了夜晚。由此可知[C]项正确。
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