题目内容

8.-Can you explain _____China's football team failed again in the attempt for the World Cup?
-I am sorry,but this is the last time.We will behave ourselves.(  )
A.why is it thatB.why it is thatC.how it is thatD.how is it that

分析 -你能解释一下究竟是什么原因让中国足球队在征战世界杯的道路上再一次失败?-对不起,这是最后一次了.我们会好好表现的.

解答 答案:B句意询问的是原因,不能用how来构成;句中it is…that…对why Chinese football team failed again in the attempt for the World Cup中的原因状语why进行强调;why Chinese football team failed again in the attempt for the World Cup作explain的宾语,是一个宾语从句,why起连接作用,后面的句子要用陈述句语序.故选B.

点评 强调句型是特殊句式之一.构成方式是:it is+被强调部分+that/who+剩下部分.可以对主语,宾语,状语进行强调,强调时,只需把被强调部分放到it is后即可,其它部分不变.这也是判断强调句型的一种有效方法.

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A  Chinese-US research team reports its results today following studies on a fossil skull found in south China's Cuangxi Zhuang Autonomous Region in 2001.
The six fossils unearthed in Jinyin Cave are dated between 2.4 and 2 million years ago,according to the report in Proceedings of the National Academy of Sciences,an influential US journal.
Jin Changzhu,of the chinese Academy of Sciences (CAS) and lead author of the paper,said the smaller fossil skull indicates the giant pandas were about a third smaller than today's pandas.
Researchers knew the panda reached its maximum size about 500,000 years ago,when it peaked,and then gradually became smaller.
Jin,a paleontologist (古生物学者) at the Institute of Vertebrate paleontology and Paleoanthropology (古人类学) attached to the CAS,said the size variation was a basic rule of evolution.
"A species tends to grow bigger when it reaches the peak of its population,but becomes smaller when numbers decline,"he said.
The dental remains of the skull,which is the oldest giant panda skull ever found,are similar to today's pandas,indicating the type of teeth that could munch (津津有味地嚼)mountains of bamboo.A panda can eat up to 40kg of bamboo per day.
Paleoanthropologist Russell Ciochon,the US co-author at the University of lowa,said the panda's focus on bamboo could have helped it survive all these years.
"Once an animal begins to rely on a common and stable food source,such as bamboo,it tends to evolve a larger body size,"he said."As individuals of the evolving species grow bigger,they have a better chance not to be eaten by predators (肉食动物) due to their larger body size."
33.According to the research of the CAS,there were most pandas in the worldC.
A.2 million years ago
B.between 2.4 and 2 million years ago
C.500,000 years ago
D.Nowadays
34.The underlined word"variation"in para 6 meansB.
A.fall           B.change       C.increase       D.decrease
35.From the passage,we can learnB.
A.pandas began to eat bamboo 2 million years ago
B.a species tends to grow smaller when numbers decline
C.the giant pandas were about a third the size of today's pandas
D.pandas'bamboo has played an important role in its development.
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B.Businessmen.
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