11.What is the significance of the new study according to this article?
A.It might inspire aircraft companies to think of ways to improve efficiency.
B.It has proved that the “V” formation can improve efficiency in many fields.
C.It has led scientists to discover that birds’ heart rates go down when they fly in a “V”.
D.It shows that the best formation of jet fighters in battles should be a “V” formation.
答案:A
解析:推理判断题。最后一段说该研究能让飞机在飞行的过程中模仿鸟类的编队方式,以节省燃料,提高效能,因此选A项。
12.The underlined word “imitate” in the last paragraph most probably means “ ”.
A.use B.copy
C.change D.learn
答案:B
解析:词义猜测题。该词所在语境表示 “飞机飞行时模仿鸟类的编队方式,以达到节能的效果”,因此这里imitate意为 “模仿”。
D
(2017·安徽马鞍山第一次质检)
“iPhone 5”,the tallest thing to happen to iPhone since iPhone
We don’t want to change your phone,we want to make you say,“Wow,that is a bigger change than I expected”.“iPhone 5” is a result of that desire to surprise.
It’s been completely redesigned.For the first time ever,we’ve increased the size of display (显示) by making the screen taller but not wider.
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