C.not only
D.instead
解析:句意为:重要的是树林的保护,而不是栽了多少树。此处用rather than表示“而不是”的意思。
答案:B
10.In the ________ society,human beings had to eat whatever they could find,whether it was raw or cooked food.
A.permanent
B.primitive
C.ancient
D.original
解析:permanent“永久的;永恒的”,primitive“原始的;落后的”,ancient“古代的”,original“最初的”;primitive society“原始社会”。
答案:B
Ⅴ.阅读理解
Imagine if spiderman came down from the ceiling to save Yao Ming or Shaquille O’Neal every time they injured their ligaments(韧带)on court.Though this idea will have to remain a daydream,spider silk may really be able to cure their wounds,scientists say.
Though to be the strongest natural fibre on the planet,spider silk could be used to rebuild injured ligaments.Randolph Lewis at the University of Wyoming in Laramie has been working on the idea.
Spider silk has interested scientists for centuries.An ancient European folk story at least 2,000 years old tells of the possible medical value of spider webs.It said they could help in fighting infections,stopping bleeding and healing wounds.
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