题目内容

1.The truth(61)thattrees are vital to our life is not a secret.They provide us with food,wood and most(62)importantly(importance),oxygen.Now there is one more thing we can add to this list-blocking out harmful bacteria from water.
The discovery(63)was made(make) by a team consisting of scientists from the Massachusetts Institute of Technology (MIT) and high school students who were seeking a(64)natural(nature) water filter(过滤器)-one that would help communities in developing countries that do not have access to modern water filter systems.
The(65)researchers(research),led by Professor Rohit Karnik,decided to turn to trees for help because they could allow liquid to flow through,while(66)blocking (block) out air bubbles.
They began by cutting 1.5-inch-wide sections of tree bark from the branches of a white pine tree.The people related then tested the wood's filtering ability by pouring water containing red dye particles of different sizes through.(67)Totheir amazement,they found that it was effective in trapping all the articles.(68)Encouraged(encourage),the team conducted(69)anotherexperiment,this time with water(70)thatcontained bacteria.Sure enough,the sapwood held back 99% of the bacteria,allowing only 1% to flow through.

分析 本文讲述了树木在人类生活中的重要作用,它不仅能为人类提供食物,木材,甚至氧气,还能帮助净化人类的用水,这点已经被一所大学的研究者通过实验得到
了证实.

解答 61.that;考查关系代词,这是一个同位语从句,所以用that引导.
62.importantly;考查副词,这里用副词作状语,修饰谓语动词provide.
63.was made;考查被动语态,主语discovery与动词make是被动关系,所以要用被动语态,结合下文时态,用was made.
64.natural;考查形容词,这里用形容词形式natural修饰后面的名词water filter.
65.researchers;考查名词,结合下文语境,句子要用名词researchers(研究者)作句子的主语,因为不止一个研究者,所以用复数.
66.blocking;考查动词,while+doing 是一个省略了""主语+be"的固定结构,表示某一动作进行时另一动作正在发生,所以这里空格处应填blocking.
67.To;考查介词,"to one's+名词"是一个固定结构,"使人…的是".
68.Encouraged;考查分词作状语,现在分词作状语表主动,过去分词作状语表被动;这里句子的主语the team 与动词encourage是被动关系,所以用过去分词作状语.
69.another;考查形容词,根据上下文语境,研究者已经做了一个实验,这里表示"又"做了一次实验,所以用another.
70.that;考查关系代词,这里是关系代词引导定语从句修饰前面的water.

点评 首先要通读全文,了解大意,抓住上下文语境所提供的信息,仔细分析带空格的句子,明确空格所要填的词义,词型和短语搭配给出所要填的正确形式,然后整
体阅读短文,核对答案.

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12.The French word renaissance means rebirth.It was first used in 1855by the historian Jules Michelet in his History of France,then adopted by historians of culture,by art historians,and eventually by music historians,all of whom applied it to European culture during the 150years spanning 1450-1600.The concept of rebirth was appropriate to this period of European history because of the renewed interest in ancient Greek and Roman culture that began in Italy and then spread throughout Europe.Scholars and artists of this period wanted to restore the learning and ideals of the classical civilizations of Greece and Rome.To these scholars this meant a return to human.Fulfillment in life became a desirable goal,and expressing the entire range of human emotions and enjoying the pleasures of the senses were no longer"frowned on".Artists and writers now turned to religious subject matter and sought to make their works understandable and appealing.
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72.The phrase"frowned on"in Para.1is closest in meaning toD.
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B.It had little emotional impact on the audiences.
C.It was too dependent on the art and literature of his time.
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B.The musical Renaissance was too short to give rise to a new musical style.
C.Renaissance musicians adopted the styles of both Greek and Roman musicians.
D.During the Renaissance,music never remained the same for very long.
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A.The number of men and women who have foot problems is similar.  
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A.26.2cm   
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18.Many people say they can not start their day without first having a cup of coffee or tea.People say these drinks help them think clearly and feel more awake.This is because of  caffeine,a kind of matter found in some plants.Caffeine helps to give a jumpstart to the  nervous system.Now a new report says it may also improve long-term memory.
    Michael Yassa is a neurobiology professor at the University of California.He and other  researchers wanted to know if caffeine could improve what they called memory consolidation.They asked a group of individuals to learn something new,then the same people were given caffeine,the active component in coffee,tea and chocolate.
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    Professor Yassa says their answers help to show the effects of caffeine on memory.He  says those who took the caffeine pills had a ten to twelve percent increase in their ability to   remember the objects.The amount of caffeine the researchers used in the study was similar to  one strong cup of coffee.
    Professor Yassa says pills with a little more caffene also increased memory,but resulted  in some participants appearing more nervous.

61.From the passage,we can learn that caffeineD.
A.Can be found in every plant  
B.can improve people's health
C.is contained only in coffee    
D.can help people think clearly
62.What does Paragraph 3 mainly discuss?A
A.How MichaeI Yassa does his research.
B.Why Michael Yassa does the research.
C.What the result of Michael Yassa research is.   
D.How many people participate in the research.
63.Which of the following statements about the experiment is true?D
A.The participants must be addicted to coffee.
B.All the pictures seen on the second day were the same.
C.All the participants must drink coffee on the first day.
D.The participants saw three groups of pictures on the second day.
64.What does this text mainly tell us?C
A.Coffeeis essential for people's work.
B.Caffeine has negative effects on our health.
C.Caffeine may help better long-term memory.
D.Caffeine can lead to difficult sleeping and anxiety.
65.The author wrote the text in order toB.
A.forbid people to drink coffee
B.report a new research of coffee
C.attract readers to drink coffee
D.introduce the procedure of research.

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