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Birds in cities are damaging their health by trying to sing above the noise of urban life.
New research shows that male birds are trying to compete against traffic and city sounds.They are now singing louder and at higher frequencies,which could harm their vocal cords.Some birds are choosing to sing at night instead of dudng the day.This makes them more open to attack and also creates stress and exhanstion.
“The difference between urban and rural birdsong is becoming so big that the two groups could now be unable to communicate.This could lead to inbreeding and a weak gene pool.”said Dr Sue Anne Zollinger of the University of St Andrews.
According to Zollingar,a bird group with a small geae pool might adapt less quickly to new diseases and could be wiped out.
A study of the dawn chorus found that birds in Berlin sang up to 14 decibels(分貝)louder than those in the forest.The birds sang loudest on weekday momings.
“By trying to sing over the sound of the city,birds are rising vocal injury,”said Zollinger.“All this puts the sarne strain on a bird’s vocal cords as when  ahuman need to shout to be heard—except the birds are doing it all day,every day,”she said.
“Singing under such pressure means birds have less control over the sound they produce. Their songs may lose quality and become more rough—sounding.”said Zollinger.This could make them appear less attractive to female birds.
Mark Constantine,author of The Sound Approach to Birding,said:“Birdsong is important for our quality of life and has been proved to reduce our blood pressure.When we live in the centre of large,urban areas,we get stressed and it's extremely good to have birdsong around us.The impact on humans of birdsong is massive.It harms us,as well as the birds,if their songs become louder and simpler
53.Some birds in cities now choose to sing at night time because_______.
A.they want to attract more birds of opposite sex
B.they are more likely to be discovered by their family
C.they can’t adapt to the loud noises during the daytime
D.they have to frighten their enemy away
54.According to the passage,urban and rural birds might not be able to_______.
A.recognize each other
B  communicate with each other
C  live with each other
D.compete against each other
55.It requires greatest efforts for birds in cities to sing o_______.
A.Monday nights            B.Wednesday afternoons
C.Saturday Evenings         D.Friday momings
56.According to Dr Sue Anne Zollinger,birds singing louder might eventually lead to_______.
A.the harm done to man’s health
B  the dying out of a species
C.the serious damage to the bird’s vocal cords
D.the decrease ofthe birth rate ofa bird group
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科目:高中英語 來源:不詳 題型:完形填空

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科目:高中英語 來源:不詳 題型:完形填空

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Section D
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(E)
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科目:高中英語 來源:不詳 題型:完形填空

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科目:高中英語 來源:不詳 題型:閱讀理解

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科目:高中英語 來源:不詳 題型:閱讀理解

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The Festival of Cultures (August 11 – 14)
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Tickets August 11 - 13
Adults            $3
Ages 13 – 18       $2
Ages 6 – 12        $ 1
Ages 6 and under    Free
      
Tickets August 14
Adults            $3
Ages 13 – 18       $2
Ages 12 and under  Free
 
87. Which of the following are from Mexico?
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A. To advertise for the World Marketplace.
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科目:高中英語 來源:不詳 題型:閱讀理解

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Last month ,studenrs from 103 universities in 88 coontries took part in international computer programming contest. The Battle of the Brain took place in Harbin, China. Three---person terms from each school had hours to solve eleven real world problems.
Jerry Cain coached the team from Standford University in Palo Alto,California. He says the problems involved, among other things, paperweights, robots, castles and lakes.
JERRY CAIN: “One of the programming problems was trying to figure out how to break an chocolate bar into a certain number of pieces of a certain number of sizes and to do it as quickly as possible. And that’s probably the simplest of all them.”
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68. It can be inferred that__________.
A .the contest is increasingly unpopular with the universities
B..the contest this year was not easy for the participants
C. most of the American universities took part in this contest
D. whether to win or not has nothing to do with the participants’ future
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A. Every team consisted of five members.
B. The participants from Shanghai Jiaotong University in China performed best.
C. Except American, there are sixty---seven countries taking part.
D. Finally Stanford’s team came fourth in the contest
70. The underline word in the text can be best replaced by_________.
A. promoted    B. fired   C. given a salary increase  D.employ
71. The purpose of this passage is to__________.
A.provide some information on how to enter for the contest
B.call on university students to take part in the contest
C.introduce the international computer programming contest. held this year
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科目:高中英語 來源:不詳 題型:閱讀理解

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A.more people will be poorer                    
B.more people will be out of jobs
C.more people will suffer from mental problems    
D.more people will commit suicide
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A.more rich people would commit suicide
B.the financial crisis might especially influence developing or underdeveloped countries
C.the current market meltdown could worsen feelings of despair
D.hundreds of millions of people in the world were already affected by mental problems
69.It is implied that ________.  
A.far more work should be done to help those who are mentally ill
B.it will be surprising to see more people commit suicide
C.a mental disorder is a chronic disease
D.many more adults commit suicide worldwide than people of other ages
70.The best title for the passage is _________.  
A.Consequences of Global Financial Crisis.
B.Mental Disorders Resulting From Global Financial Crisis.
C.Suicides as a Result of Market Meltdown.
D.Chronic Mental Disorders.

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