在Amazon rainforest的深处,居住着一种特殊的蝴蝶,它们喝海龟的眼泪。
5.The butterflies drink turtle tears to________.
A.help the turtles get sodium
B.get a mineral from turtle tears
C.rid waste from the turtles' bodies
D.take turtles to the best water source
答案:B 事实细节题。从文中第二段最后一句“But herbivores (食草的) butterflies sometimes struggle to get this extra mineral source.”可知选B。
6.The third paragraph mainly tells us________.
A.what leads to the extremely low levels of sodium in the region
B.why sodium is very important for butterflies in the region
C.what takes away the sodium of the surface of the region
D.why the region is badly short of the mineral dirt
答案:A 主旨大意题。从第三段第一句话可概括本段大意。
7.We can conclude from the passage that________.
A.the butterflies like eating meat for getting salt
B.the turtles like the butterflies drinking their tears
C.turtle tears are the only source of salt for the butterflies
D.the Andes Mountains lies east of the western Amazon rainforest
答案:D 推理判断题。从第三段最后两句话“The region is also cut off from the mineral dirt blown towards the west from the Andes Mountains.”可知D正确,其他三项与文中事实不符。
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