专八

单选题听音频,回答下列问题:
The news is mainly about______.

A.the moon is a big.Sand trap
B.water may be plentiful in the:interior of the moon
C.collision made the moon so hot:
D.scientists can identify elements present in the moon

参考答案:B进入在线模考

听前预测
根据题干中出现的a trace of watet in moon rocks可以判断新闻报道了月球上可能存在水的消息。
新闻摘要
新闻报道了月球内部可能含有丰富的水资源。人类踏上月球时,发现月球表面没有任何水,而且从月球上带回来的岩石中,都没有检测出任何水,所以之前人们都认为月球上没有水资源。但是最近科学家们
发现,月球表面的岩石中含有丰富的氢氧根。可能是月球在碰撞中表面温度太高,导致水里边的氢元素蒸发,只留下了氢氧根。
试题解析
B。本题的出题点在新闻末尾的主旨句处。新闻提到,科学家研究的结果表明,月球内部可能含有大量的水。整则新闻都是在探讨月球上是否存在水资源。首先通过人类登月时的情景来说明,起初人们认为月球上并没有水,其次通过一些科学家对月球上岩石的检测结果说明,月球上可能存在水资源。故选B。

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1 Why didn't man find a trace of water in moon rocks?

A.Because there is no water in the moon.
B.Because the moon is a big sand trap.
C.Because the rocks that were brought to the earth is dry.
D.Because volatile elements in water have burned away.

2听音频,回答下列问题:
Which of the following statements about the flood is TRUE?

A.Twenty-two people have been killed in the flood.
B.In the deadliest incident,fourteen people were killed.
C.Dozens of people have been left stranded in factories.
D.There were no police officers hurt in the rescuing work.

3根据以下资料,回答题:
  The period of adolescence,i.e.,the person between childhood and adulthood,may be long or short,depending  on social expectations and on society's definition as to what constitutes maturity and adulthood.In primitive  societies adolescence i’s frequently a relatively short period of time,while in industrial societies with pattems of orolonged education coupled with laws against child labor,the period of adolescence is much longer and may include most of the second decade of one’s life.Furthermore,the length of the adolescent period and the definition of adulthood status may change in a given society as social and economic conditions change.Examples of this type of change ale the disappearance of the frontier in the latter part of the nineteenth century in the United States,and more universally,the industrialization of an agricultural society.
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The length of adolescence is decided by all of the following.EXCEPT________.

A.the definition of maturity and adulthood
B.change in social and economic conditions
C.industrialization of the society
D.development of science and technology