.
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
練習(xí)冊系列答案
相關(guān)習(xí)題

科目:高中英語 來源:不詳 題型:完形填空

My parents operated a small restaurant in Seattle. It was open twenty-four hours a day, six days a week. And my first real job,when I was six years old,was小題1:the diners’ shoes. My father had done it when he was young,so he taught me小題2:to do it efficiently,telling me to    小題3:to Re-shine the shoes if the customer wasn’t小題4:.
Working in the restaurant was a cause of great小題5:because I was also working for the good of the family. But my father小題6:that I had to meet certain standards to be part of the team. I小題7:to be punctual,hard-working,and polite to the小題8:.
I was小題9:paid for the work I did at the restaurant. One day I made the mistake of advising Dad that he小題10:give me $10 a week. He said,“OK. How about you paying me for three meals a day you have here? And小題11:the times you bring in your friends for free soft drinks?” He小題12:I owed him about $40 a week.
I remember returning to Seattle after being小題13:in the US Army for about two years. I had just been promoted to Captain at that time. And full of pride,I walked into my parents’ restaurant,but the小題14:thing Dad said was,“How about your小題15:up tonight?” I couldn’t小題16:my ears! I am an officer in the Army! But it didn’t 小題17:as far as Dad was concerned,I was just 小題18:member of the team. I reached for the mop. Working for Dad has taught me the devotion to a小題19:is above all. It has nothing to do with小題20: that team is involved in a family restaurant or the US Army.
小題21:A.cleaning                            shining                 C.removing     D.keeping
小題22:A.why  what                    C.when                  D.how
小題23:A.offer refuse                   C.love                    D.learn
小題24:A.interested annoyed       C.relaxed                D.satisfied
小題25:A.fun         pride               C.trouble                D.effort
小題26:A.got it right kept it a rule C.made it clear        D.took it for granted
小題27:A.had                 tended       C.hated               D.managed
小題28:A.family       workers  C.customers          D.friends
小題29:A.never        always     C.seldom              D.ever
小題30:A.must        should    C.might                D.could
小題31:A.a(chǎn)t                    before      C.a(chǎn)round             D.for
小題32:A.worked out   found out     C.put out    D.thought out
小題33:A.a(chǎn)lone        away       C.outside            D.off
小題34:A.usual        last          C.next                D.first
小題35:A.washing      taking    C.cleaning         D.moving
小題36:A.ignore        follow   C.believe           D.understand
小題37:A.happen       care          C.go                 D.matter
小題38:A.no                    other         C.some            D.a(chǎn)nother
小題39:A.team         family    C.leader           D.restaurant
小題40:A.why         whether    C.when           D.how

查看答案和解析>>

科目:高中英語 來源:不詳 題型:完形填空

.
Section D
Directions: Read the passage carefully.  Then answer the questions or complete the statements in the fewest possible words.
(E)
In many corners of the world, mass malnutrition is a deadly threat to people’s life.  It is plainly defined as a state of insufficiency of food for the population, where the majority of the people do not obtain enough food calories (卡路里) to meet the lowest needs for support of physical work and for maintenance of health.  Compared with wars or natural disasters like earthquake or flood, mass malnutrition is rather an unnoticeable health killer, which escapes enough public attention.
In Latin America, as in other places, the frightening protein-shortage disease kwashiorkor has been said to take toll of thousands of children, greatly affecting the area’s child population and leaves many more children in terribly poor health.  The reason for the problem might lie in the traditional diets in the area which are not balanced in nutrition.  Here people keep their eating pattern year after year without the knowledge of what these eating habits are doing to themselves and to future generations.
In these poor areas, in stead of thoroughly altering the local people’s long-term habits, the best way might be to find food substitutes which could meet nutritional needs.  Mixtures of vegetable proteins, like soybeans and peanuts could provide cheap and useful protein where meat, eggs and milk are not within economic reach of large groups in population.
Efforts could also be made to increase the agricultural productivity in some areas, where mass production of vegetable protein crops could bring life-saving nutrition to local people.  Being used wrongly, large areas of land now are devoted to luxurious entertainment constructions, such as golf course or riding field, which are targeted at a small number of rich people.  But isn’t a large area of productive planting land more acceptable and down-to-earth a choice to these countries suffering from mass malnutrition right now?
(Note: Answer the questions or complete the statements in NO MORE THAN 10  WORDS)
81. What is mass malnutrition?
___________________________________________________________________________
82. What does the underlined word “take toll of” probably mean?
___________________________________________________________________________
83. People can most effectively solve the mass malnutrition problem in some developing areas by ___________________________________________________________________________
84. It would be wise to use large areas of planting land for____________________________
___________________________________________________________________________

查看答案和解析>>

科目:高中英語 來源:不詳 題型:完形填空

.
第二節(jié)語法填空(共10小題;每小題1.5分,滿分15分)
閱讀下面短文,按照句子結(jié)構(gòu)的語法性和上下文連貫的要求,在空格處填入一個適當(dāng)?shù)脑~或使用括號中詞語的正確形式填空,并將答案填寫在答題卡標(biāo)號為31~40的相應(yīng)位置上。
It is interesting to visit another country, but there are sometimes problems    31    we don’t know the language very well. It may be difficult to talk with the people there. We may not know    32    to use the telephone in the country we    33   (visit). We may not know how to buy the things we need.
In a strange country we might not know where to eat    34    what to order in a restaurant. It is not easy to decide how much to tip waiters or taxi drivers. When we need help, we might not know how to ask for help. It is not    35    (please) to have an experience like that.
Mr. Day was a teacher at a school in a big city    36    the north of England. He usually went to France or Germany for a few weeks during his summer holidays, and he spoke French and German quite well.
37    one year Mr. Day said to one of his friends, “I’m going to have    38    holiday in Athens. But I don’t speak Greek, so I’ll go to evening classes and have Greek lessons for a month before I go.”
He studied very hard for a month, and then his holidays began and he went to Greece.
When he came back a few weeks later, his friend said to him, “Did you have    39    trouble with your Greek when you were in Athens, Dick?”
“No, I didn’t have any trouble with    40   ,” answered Mr. Day. “But the Greeks did!”

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

As prices and building costs keep rising, the “do-it-yourself” (DIY) trend in the U.S. continues to grow.
“We needed furniture for our living room,” says John Ross, “and we just didn’t have enough money to buy it. So we decided to try making a few tables and chairs.” John got married six months ago, and like many young people these days, they are struggling to make a home at a time when the cost of living is very high. The Rosses took a 2-week course for $280 at a night school. Now they build all their furniture and make repairs around the house.
Jim Hatfield has three boys and his wife died. He has a full-time job at home as well as in a shoe making factory. Last month, he received a car repair bill for $420. “I was deeply upset about it. Now I’ve finished a car repair course. I should be able to fix the car by myself.”
John and Jim are not unusual people. Most families in the country are doing everything they can to save money so they can fight the high cost of living. If you want to become a “do-it-yourselfer”, you can go to DIY classes. And for those who don’t have time to take a course, there are books that tell you how you can do things yourself.
小題1:We can learn from the text that many newly married people ________.
A.find it hard to pay for what they need
B.have to learn to make their own furniture
C.take DIY courses run by the government
D.seldom go to a department store to buy things
小題2:John and his wife went to evening classes to learn how to ________.
A.run a DIY shopB.make or repair things
C.save time and moneyD.improve the quality of life
小題3:When the writer says that Jim has a full-time job at home, he means Jim ________.
A.keeps house and looks after his childrenB.does his own car and home repairs
C.does extra work at nightD.makes shoes in his home
小題4:Jim Hatfield decided to become a do-it-yourselfer when ________.
A.he had to raise the children all by himselfB.the car repair class was not helpful
C.he could not possibly do two jobsD.his car repairs cost too much
小題5:What would be the best title for the text?
A.the Joy of DIYB.You Can Do It Too!
C.Welcome to Our DIY Course!D.Ross and Hatfield: Believers in DIY

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

.
The Festival of Cultures (August 11 – 14)
City Park
The Festival of Cultures is an annual event to celebrate the wide range of cultures found in our great state. People representing 40 cultural groups will share their traditions and customs. Here are just a few of the festival’s many activities.
Crafts (手工): See the fine art of basket weaving from Vietnam and Zimbabwe. Watch the delicate art of making paper umbrellas from Thailand and the decorative craft of paperl picado, or paper cutting, from Mexico. All craft demonstrations provide a firsthand view of how things are made. You will appreciate the process involved in making these products.
Music and Dance: Experience musical instruments that you have never heard before. Listening to the music of a sho from Japan, a bull-roarer from Australia, a sitar from India, and a chakay from Tailand. You will also be entertained by folk dances from around the world, such as the troika from Russia and the mayim from Israel. From 1:00 P.M. to 3:00 P.M. on August 14, special folk-dancing classes for children will be offered. Children ranging in age from 6 – 8 can learn the kinderpolka from Germany. Children ranging in age from 9 – 12 can learn the raspa from Mexico.
Storytelling: Listen for hours as professional storytellers charm you with interesting tales. Fables, folktales, and ballads from various countries will be told. By popular demand, Gwendolyn Washington, a famous African American storyteller, is back.
Food: Enjoy irresistible foods from other countries, such as gyros from Greece, seafood paella from Spain,
crepes from France, and tandoori chicken from India. These tasty dishes will be difficult to pass up.
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?
A. The paper cutting and troika.    B. The kinderpolka and sitar.
C. The paperl picado and the raspo.      D. The mayim mayim and the gyros.
88. A family with two children at the age of 8 and 16 are going to the festival on August 12. How much money will they pay for the festival?
A. $5.     B. $6.     C. $8.     D. $9.
89. What do we know about the festival?
A. Children will have a chance to learn different folk-dancing.
B. Storyteller Gwendolyn is invited to the festival for the first time.
C. People will be offered opportunities to play musical instruments.
D. Visitors can make paper umbrellas from their first- hand experience.
90. What’s the purpose of writing this passage?
A. To advertise for the World Marketplace.
B. To introduce a wide range of cultural traditions.
C. To explain the great significance of popularizing the festival.
D. To persuade readers to attend the festival held in the City Park.

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

.
COPENHAGEN—The world is gathered in Copenhagen for the U.N. climate summit, but Denmark’s bicycle-friendly capital has also given its name to a movement of cities trying to find a kinder way to commute(往返上下班).
Nearly 40 percent of Copenhagen’s population cycle to work or school on ubiquitous(無處不在的) paved cycle paths. Many residents take to their bikes year-round, braving rain and snow through the winter in a city where the bicycles outnumber the people.
Amsterdam and Beijing too are known for their bicycles, but the Danish capital is where urban planners from around the world have been looking for ways to get their people out of cars and up onto bikes, an effort known as Copenhagenisation.
Klaus Bondam, Copenhagen’s technical and environmental chief, calls himself a “mega cyclist” and says the bike’s popularity stems partly from high taxes on cars which meant working-class Danes could not afford to drive in the 1930s and 40s. “Today you’ll meet everybody on the bicycle lanes --- women and men, rich and poor, old and young,” Bondam said.
The local government has during the last three years invested more than 250 million crowns ($49.42 million) in bicycle lanes and to make the traffic safer for bicyclists. Today around a third of the population drive cars to work or study, another third take public transport, while 37 percent cycle -- a figure the city aims to boost to 50 percent by 2015.
There are many benefits when citizens choose bicycles over cars: pollution and noise decline, public health improves, and more people on bikes or walking creates a sense of safety in the city. Fewer parked cars leaves more space for playgrounds, parks, shopping areas and other useful public places.
54.According to the first paragraph, Copenhagen is better known as __________.
A.a(chǎn) city without cars               B.a(chǎn) bicycle-friendly city
C.Denmark’s capital                D.the U.N. climate summit
55.We can learn from the second and the third paragraph, _________.
A.there is no path for cars during rainy and snowy days
B.citizens are limited to have only one bike for each person
C.two-thirds of people in Copenhagen cycle to work or school
D.city planners try their best to encourage more citizens to ride bikes
56.Bikes are popular in Copenhagen partly because __________.
A.the citizens are unable to afford to buy a car
B.the rich tend to keep fit by cycling to work
C.young people regard cycling a fashion to follow
D.high taxes were paid for cars in the 1930s and 40s
57.Which of the following is NOT the benefit of cycling?
A.Saving time on the road.             B.Declining pollution and noise.
C.Improving public health.             D.Creating safety in the city.

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

.
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.”
The students first listed the problems in order of difficulty and then they wrote the needed software systems. They designed ways to test their solutions. And they wrote the needed software systems , Even the winning team from Shanghai Jiaotong University in China was not able to solved all the problems within the given time limit. Stanford’s team solved five problems and finished in fourteenth place. Standford was one of twenty---one America universities that took part in the conest this year. The conest began in 1970 at Texa A and M University. The first final competition was held in 1977 at the Association for Computer Machinery Computer Science Conference. It developed and grew as more and more schools took part in local and area contests.
Contest spokenman Doug Heintzman says the world champions receive prizes and scholarships. They are also guaranteed an offer of employment or practice period with IBM. “We’re had past world champions that IBM has given a post to in our Zurich research Iaboratory and they are now working on some of the Ieading edge materials in science and physics. So this competition is an opportunity to be recognized and to be recruited by some of the top  technology and firms around the world “
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
69. Which of the following is true about contest?
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
D.inform the readers of the result of the contest

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

.
The global financial crisis is likely to cause increased mental health problems and even suicides(自殺)as people struggle to deal with poverty and unemployment, the World Health Organization warned Thursday.
Hundreds of millions of people worldwide are already affected by mental problems such as depression and bipolar disorders (帶狂躁的抑郁癥) and the current market meltdown (崩潰) could worsen feelings of despair among people who can't stand such illnesses.
The United Nations agency said the impact could be especially marked for those living in low and middle income countries where access to treatment is often limited.
“We should not be surprised at the turbulence (動蕩) and likely consequences of the current financial crisis. Now we are seeing a huge gap in taking care of people in great need,” WHO director general Margaret Chan told at a meeting of mental health experts.
“It should not come as a surprise that we continue to see more stresses, suicides and mental disorders,” Chan warned.
Benedetto Saraceno, director of WHO's mental health, said mental health disorders affected one in four people at some point in their lives.
Mental and neurological disorders are often chronic (慢性的) and disabling, he said. Nearly 1 million people commit suicide worldwide every year, a large proportion (比例) of them are young adults.
Asked about the financial crisis, Saraceno said, “Poverty can be the consequence of such events, the debts, despair and sense of loss that may reach middle and lower classes. Even the poor can be affected by this crisis.”
“There is a clear evidence that suicide is linked to financial disasters. I am not talking about the millionaire's jumping out of the window but about poor people,” he said. The global crisis could be expected to affect the “stability(穩(wěn)定)of communities and families”, according to Saraceno.
67.According to the passage, the chief result of the worldwide financial crisis is that  ________ . 
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
68.The United Nations agency worried that________. 
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(chǎn) 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.

查看答案和解析>>

同步練習(xí)冊答案