C What has led to there being no very old wood carvings in West Africa?___ ___
A. the nature of the climate there
B. Western collectors' desire for such carvings
C. the fact that other materials were used previously
D. destruction of the carvings because of religion
E. problems caused by insects
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D Which of these ways of looking at an institution's curriculum is outlined in the text?___ ___ ___
A. observing what happens during lessons
B. evaluating the materials used
C. analysing the content of tests
D. considering what is taken into account when preparing the curriculum
E. comparing this curriculum with other choices that could have been made
F. reviewing actual learning compared to curriculum goals
G. assessing the effectiveness of teacher preparation for lessons
According to the article, why did many people think that crop circles were created by alien spaceships?___
A. The circles looked like they had been made from above and had no way in or out.
B. The observers in 1979 reported seeing a UFO land and make a crop circle.
C. The plants and soil inside a crop circle contained chemicals not found on Earth.
D. They were in unusual shapes and contained alien symbols.
Why does the author mention “a hoax”?___
A. because one of the locals admitted playing a trick on his neighbors
B. because most people think that crop circles are evil
C. because police investigators thought crop circles were made by humans as a joke
D. because crop circles are probably made by secret government aircraft
According to this reading, which of these activities does the author oppose?___
A. marijuana possession
B. surveillance
C. property seizures
D. civil libertarians
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