题目内容
（请给出正确答案）
The word "carcass" (Line 2, Para. 3) most probably means"______"
A．vegetables preserved for future use
B．the dead body of an animal ready to be cut into meat
C．expensive food that consumers can hardly afford
D．meat canned for future consumption
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更多“The word "carcass" （Line 2, Pa…”相关的问题
A．the difference in breakage frequencies could have been the result of damage to the fossile remains in the La Brea pits
B．the fossils in other Pleistocene sites could have higher breakage frequencies than do the fossils in the La Brea pits
C．Pleistocene carnivore species probably behaved very similarly to one another with respect to consumption of carcass
D．all Pleistocene carnivores species differed behaviorally from present-day carnivore species.
E．predator desities during the Pleistocene era were extremely high
A.it was man’s first real invention
B.all transportation depends on it
C.every machine depends on it
D.both B and C
PART C
Directions: You will hear three dialogues or monologues. Before listening to each one, you will have 5 seconds to read each of the questions which accompany it. While listening, answer each question by choosing A, B, C or D. After listening, you will have 10 seconds to check your answer to each question. You will hear each piece ONLY ONCE.
听力原文： Man's first real invention, and one of the most important inventions in history, was the wheel. All transportation and every machine in the world depends on it.
The wheel is the simplest yet perhaps the most remarkable of all inventions, because there are no wheels in nature - no living thing was ever created with wheels. How, then, did man come to invent the wheel？
Perhaps some early hunters found that they could roll the carcass of a heavy animal through the forest on logs more easily than they could carry it. However, the logs themselves weighed a lot.
It must have taken a great prehistoric thinker to imagine two thin slices of log connected at their centers by a strong stick. This would roll along just as the logs did, yet be much lighter and easier to handle. Thus the wheel and axle came into being, and with them the first carts.
Why is the wheel important？
A．Because the wheel was man's first invention.
B．Because all transportation depends on the wheel.
C．Because every machine depends on the wheel.
D．Both B and C
A.1
B.txt ,图片，Word。
C.txt ,图片，Word。
D.txt ,图片，Word。
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