这两种形式的题目总是做错,比如313选 C,342 看成是cause 的宾语也不错啊,请教大家对这种题是怎样思考的?
313. Found throughout Central and South America, sloths hang from trees by long rubbery limbs and sleep fifteen hours a day, moving infrequently enough that two species of algae grow on its coat and between its toes. (D)
(A) sloths hang from trees by long rubbery limbs and sleep fifteen hours a day, moving infrequently enough (B) sloths hang from trees by long rubbery limbs, they sleep fifteen hours a day, and with such infrequent movements (C) sloths use their long rubbery limbs to hang from trees, sleep fifteen hours a day, and move so infrequently (D) the sloth hangs from trees by its long rubbery limbs, sleeping fifteen hours a day and moving so infrequently(D) (E) the sloth hangs from trees by its long rubbery limbs, sleeps fifteen hours a day, and it moves infrequently enough (D)
342. If industrial pollution continues to deplete the ozone layer, the resulting increase in ultraviolet radiation will endanger human health, causing a rise in the incidence of skin cancer and eye disease, and perhaps even threatening global ecological systems. (B) (A) and perhaps even threatening (B) and may even threaten (C) and even a possible threat to (D) as well as possibly threatening(B) (E) as well as a possible threat to
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