New archaeological discovers suggest that trade between Europe and Asia along the Silk
Road probably began in some form many countries earlier than once thought. The findings, coupled with a widening range of scientific and historical research, could add a fascinating new
page to the epic of the Silk Road.
The latest and most surprising discovery is pieces of silk found in the hair of an Egyptian mummy from about 1000 BC, long before regular traffic on the Silk Road and at least one thousand years before silk was previously thought to be used in Egypt. Other research may extend human activity along this route back even further, perhaps a million years to the migration of human ancestors into eastern Asia.
The official origin of East-West commerce along the road is usually placed in the late 2nd century BC when an agent of the Chinese Emperor Wu-di returned from a dangerous secret mission（使命）across the desert into the remote high country of Central Asia. The agent, Zhang Qian, travelled as far as Afghanistan and brought back knowledge of even more distant lands such as Persia, Syria and a place known as Lijien, perhaps Rome. Historians have called this one of the most important journeys in ancient times. His journey opened the way for what have been thought to be the first indirect contacts between the ancient world’s two superpowers, China and Rome. Chinese silk, first traded to central Asian tribes for war horses and to the Parthians of old Persia in exchange for acrobats and ostrich eggs, was soon finding its way through a network of merchants to the luxury markets of Rome.
But the new discoveries show that Chinese silk was apparently present in the West long before the Han emperor started organized trade over the Silk Road. The research could change thinking about the early history of world trade and provide insights into the mystery of just how and when Europe and the Mediterranean lands first became aware of the glorious culture at the other end of Eurasia.
小題1:The word “coupled” in the first paragraph could best be replaced by ______.
A．producedB．contributedC．doubledD．combined
小題2:The silk thread found in the hair of an Egyptian mummy suggests that ______.
A．Egyptians had probably travelled to China to buy silk
B．trade along the Silk Road began earlier than once thought
C．historical research often achieves fascinating results
D．new light can now be thrown on ancient trading practices
小題3: Until recently most historians believed that trade along the Silk Road _______.
A．originated in the 2nd century BC
B．extended human migration into eastern Asia
C．began a million years ago
D．primarily benefited the Egyptians
小題4:Historians have always considered Zhang Qian’s mission important because they believe ______.
A．be brought back knowledge of Rome to the emperor B．be discovered the Silk Road
C．be helped establish East-West trade D．be travelled as far as Afghanistan

小題1:D
小題2:B
小題3:A
小題4:C

小題1:詞義猜測。上一句提到了新的考古發(fā)現(xiàn)，由此可以推斷這些新的發(fā)現(xiàn)“連同”大范圍的科學(xué)和歷史研究。
小題2:推理判斷。結(jié)合第一段第一句話的內(nèi)容以及第二段第一句的內(nèi)容可知答案。
小題3:細(xì)節(jié)理解。結(jié)合第三段的內(nèi)容可知答案。
小題4:推理判斷。根據(jù)第三段后半部分中的內(nèi)容可推測歷史學(xué)家認(rèn)為張賽出使西式幫助建立了東西的貿(mào)易往來。
練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目：高中英語 來源：不詳 題型：閱讀理解

Since we are social beings，the quality of our lives depends in large measure on our interpersonal relationships.One strength of the human conditions is our possibility to give and receive support from one another under stressful (有壓力的) conditions.Social support consists of the exchange of resources among people based on their interpersonal ties.Those of us with strong support systems appear better able to deal with major life changes and daily problems.People with strong social ties live longer and have better health than those without such ties.Studies over types of illnesses，from depression to heart disease，show that the presence of social support helps people defend themselves against illness，and the absence of such support makes poor health more likely.
Social support cushions stress in a number of ways.First，friends，relatives and co­workers may let us know that they value us.Our self­respect is strengthened when we feel accepted by others in spite of our faults and difficulties.Second，other people often provide us with informational support.They help us to define and understand our problems and find solutions to them.Third，we typically find social companionship supportive.Taking part in free­time activities with others helps us to meet our social needs while at the same time distracting (轉(zhuǎn)移注意力) us from our worries and troubles.Finally，other people may give us instrumental support—money aid，material resources，and needed services—that reduces stress by helping us resolve and deal with our problems.
小題1:Interpersonal relationships are important because they can________.
A．deal with life changes
B．smooth away daily problems
C．make people live more easily
D．cure types of illnesses
小題2:The researches show that people’s physical and mental health________.
A．has much to do with the amount of support they get from others
B．lies in the social medical care systems which support them
C．depends on their ability to deal with daily worries and troubles
D．is related to their courage for dealing with major life changes.
小題3:Which of the following is closest in meaning to the underlined word “cushions”？
A．takes place of　　　　B．makes up of
C．lessens the effect of　D．gets rid of
小題4:Helping a sick neighbor with some repair work in spare time is an example of________.
A．instrumental support
B．informational support
C．social companionship
D．the strengthening of self­respect
小題5:What is the subject discussed in the text?
A．Effects of stressful conditions.
B．Kinds of social support.
C．Ways to deal with stress.
D．Interpersonal relationships.

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

Even with little exposure to cultural standards of beauty, “infants treat attractive faces as  distinctive regardless of the sex, age a nd race of the stimulus(刺激物) faces,”  write psychologist Judith H.Langlois and her colleagues in the January DEVELOPMENTAL PSYCHOLOGY.
In their experiment, 5 healthy 6-month-old infants from middle-class families viewed slides showing eight pairs of white male faces and eight pairs of white female faces. Each pair, displayed for 10 seconds, consisted of one attractive and one unattractive face, as previously judged by a group of male and female college students. An experimenter viewed the young participants on a video monitor and recorded the direction and duration of each infant’s gaze.
The 35 boys and 25 girls looked longer at both male and female faces judged as attractive, the researchers found.
Their second study of 6-month-old involved 15 boys and 25 girls, mostly white, who saw eight pairs of slides showing an attractive and an unattractive black female, as previously judged by both white and black college students.  Again, the babies looked much longer at attractive faces.  
Finally, 19 boys and 20 girls, all 6 months old and almost all of them white, viewed eight pairs of slides showing the faces of 3-month-old boys and girls previously rated as attractive or unattractive by college students. Attractive baby faces drew signficantly longer looks, the psychologists report.
Further studies must explore whether infants take attractive faces as “best examples” of a face, the investigators claim Langlois and a coworker recently reported that attractive faces may possess features that approximate the mathematical average of all faces in particular population.
1.What was found in the first study?
A.Male infants looked longer only at female ones.
B.Females looked more attractive than males.
C.Sixty 6?month?old babies looked longer at the attractive faces, male or female.
D.White female faces drew more attention  than those of black ones.
2.In the last paragraph, the writer implies that .      
A.Langlois and her partners will stop their experiments they accomplished a lot
B.Langlois and her partners will focus on the other fields of infants
C.Langlois and her partners have achieved success in studying the infants’ mind
D.Langlois and her partners have found a more interesting field
3.What can be inferred from the passage?
A.All babies, white or black, tend to share with the college students the preference for attractive faces.
B.White babies prefer white faces to black ones.      
C.Babies tend to get interested in the attractive faces of the opposite sex.
D.Beauty has something to do with a person’s age, race and sex
4.The title that best expresses the main idea is .     
A.Psychology of Infants   B.Beauty in Variety   C.Beauty and Race   D.Beauty in Infants

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

The volcano is one of the most surprising frightening things of nature. Maybe you have seen pic­tures of these " fireworks " of nature. Sometimes when a volcano erupts, a very large wall of melted rock moves down the side of a mountain. It looks like a " river of fire". Sometimes volcanoes ex­plode, throwing the melted rock and ashes high into the air. But where does this melted rock come from?
The earth is made up of many layers (層). The top layer that we see is called the crust. Under the crust are many layers of hard rock. But far, far beneath the crust the rock is so hot that it is soft. In some places it even melts. The melted rock is called magma. Sometimes the magma breaks out to the surface through cracks (裂縫) in the crust. These cracks are volcanoes.
Most people think of mountains when they think of volcanoes. But not every mountain is a volca­no. A volcano is simply the opening in the earth from which the magma escapes. The hot magma, or lava as it is called, cools and builds up on the surface of the earth. Over thousands of years, this pile of cooled lava can grow to be very, very big. For example, the highest mountain in Africa, Kilimanja­ro, is a volcano. It rises more than 16,000 feet above the ground around it.
8. The underlined word "erupts" means ______.
A. moves down   B. breaks away    C. builds up       D. suddenly throws out lava
9. Which words in the passage have the same meaning as "melted rock"?
A. volcano and crust                B. crust and hard rock
C. magma and lava                D. volcano and magma
10. Which is the correct order of the layers of the earth (beginning with the top layer)?
A. crust — hard rock — magma — soft rock
B. crust — hard rock — soft rock — magma
C. agma — soft rock — hard rock — crust
D. volcano — cracks — magma — crust
11. The best title of the passage should be______.
A. The Volcano        B. Kilimanjaro Volcano   C. The Mountains   D. The Melted Rock

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

Federal regulators Wednesday approved a plan to create a nationwide emergency alert (警報(bào)) system using text messages delivered to cell phones.
Text messages have exploded in popularity in recent years, particularly among young people. The wireless industry’s trade association, CTIA, estimates (估計(jì)) more than 48 billions text messages are sent each month.
The plan comes from the Warning Alter and Response Network Act, a 2006 federal law that requires improvement to the nation’s emergency alter system. The act tasked the Federal Communications Commission (FCC) with coming up with new ways to alter the public about emergencies.
“The ability to deliver accurate and timely warning and alters through cell phone and other mobile services is an important next step in our efforts to help ensure that the American public has the information they need to take action to protect themselves and their families before, and during, disasters and other emergencies,” FCC Chairman Kevin Martin said following approval of the plan.
Participation in the alter system by carriers — telecommunication companies — is voluntary, but it has received solid support from the wireless industry.
The program would be optional for cell phone users. They also may not be charged for receiving alters.
There would be three types of messages, according to the rules.
The first would be a national alter from the president, likely involving  a terrorists attack or natural disaster. The second would involve “approaching threats,” which could include natural disasters like hurricanes or storms or even university shootings. The third would be reserved for child abduction (綁架)emergencies, or so-called Amber Alerts.
The service could be in place by 2010.
61. What is the purpose of the approval plan?
A. To warn people of emergencies via message.
B. To popularize the use of cell phone.
C. To estimate the monthly number of messages.
D. To promote the wireless industry.
62. The improvement to the present system is in the charge of ______.
A. CTLA.   B. the Warning Alert and Response Network
C. FCC    D. federal regulators
63. The carriers’ participation in the system is determined by _______.
A. the US federal government  B. mobile phone users
C. the carriers themselves       D. the law of the United States
64. Which of the following is true of cell phone users?
They must accept the alert service. 
B. They may enjoy the alert service for free.
C. They must send the alerts to others.
D. They may choose the types of messages.
65. An alert message will NOT be sent if __________.
A. a child loses his way         B. a university shooting happens
C. a natural disaster happens   D, a terrorist attack occurs
66. Which of the following would be the best title for the test?
A. Cell Phone Alerts Protecting Students
B. Cell Phone Alerts by Wireless Industry
C. Cell Phone Alerts Natural Disasters
D. Cell Phone Alerts Coming Soon

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解


Sometimes, the simplest ideas are the best. For example, to absorb heat from the sun to heat water, you need large, flat, black surfaces. One way to do that is to build those surfaces specially, on the roofs of buildings. But why go to all that trouble when cities are full of black surfaces already, in the form of asphalt (柏油) roads?
Ten years ago, this thought came into the mind of Arian de Bondt, a Dutch engineer. He finally persuaded his boss to follow it up. The result is that their building is now heated in winter and cooled in summer by a system that relies on the surface of the road outside.
The heat-collector is a system of connected water pipes. Most of them ran from one side of the street to the other, just under the asphalt road. Some, however, dive deep into the ground.
When the street surface gets hot in summer, water pumped through the pipes picks up this heat and takes it underground through one of the diving pipes. At a depth of 100 metres lies a natural aquifer (蓄水層) into which several heat exchangers (交換器) have been built. The hot water from the street runs through these exchangers, warning the ground-water, before returning to the surface through another pipe. The aquifer is thus used as a heat store.
In winter, the working system is changed slightly. Water is pumped through the heat exchangers to pick up the heat stored during summer. This water goes into the building and is used to warm the place up. After performing that task, it is pumped under the asphalt and its remaining heat keeps the road free of snow and ice.
小題1:Which of the following is true according to the first two paragraphs?  
A．Arian de Bondt got his idea from his boss.
B．Large, flat, black surfaces need to be built in cities.
C．The Dutch engineer’s system has been widely used.
D．Heat can also be collected from asphalt roads.
小題2:For what purpose are the diving pipes used?  
A．To absorb heat from the sun.B．To store heat for future use.
C．To turn solar energy into heat energy.D．To carry heat down below the surface.
小題3:From the last paragraph we can learn that __ 
A．some pipes have to be re-arranged in winter
B．the system can do more than warming up the building
C．the exchangers will pick up heat from the street surface
D．less heat may be collected in winter than in summer
小題4:What is most likely to be discussed in the paragraph that follows?  
A．What we shall do if the system goes wrong.
B．What we shall do if there are no asphalt roads.
C．How the system cools the building in summer.
D．How the system collects heat in spring and autumn

查看答案和解析>>

科目：高中英語 來源：不詳 題型：完形填空

閱讀下面短文，從短文后各題所給的四個(gè)選項(xiàng)（A、B、C和D）中，選出可以填入空白處的最佳選項(xiàng)，并在答題卡上將該項(xiàng)涂黑。
In the United States there was an unusual tale telling of the daughter of a mechanic （技工）. One day while walking along the bank of a lake, the girl  36   to see 20 eggs laid by a wild goose. After some time the girl   37   the mother would not return to her eggs and she   38   to take them home. There she carefully   39   the eggs in the heat of a lamp. Several days   40   the eggs broke and the baby geese came into the   41  .
Geese are known to take the first living thing they see as their mother.   42  , to these young geese, the girl was their mother.
As they   43  , the girl was able to   44   her birds to run across the grass, but she could not teach them to   45  . The girl became increasingly worried about this, both when   46   and in her dreams. Later, she had an   47  : She would pilot a plane to guide them in   48  . She asked her father for a plane and he assembled（組裝）a small aircraft for her.
Caring about   49   safety, the father decided to pilot the plane himself. However, the birds did not   50   or follow him, and   51   slept in the grass.
One day, the girl   52   into the plane, started it and soon left the   53  . Seeing their mother take to the air, the birds   54   flapped（拍打）their wings and   55  . She flew the plane freely in the sky, her young birds following.
小題1:
A．managedB．a(chǎn)ttemptedC．happenedD．supposed
小題2:
A．realizedB．expectedC．imaginedD．a(chǎn)dmitted
小題3:
A．helpedB．decidedC．a(chǎn)ffordedD．meant
小題4:
A．placedB．protectedC．treatedD．examined
小題5:
A．a(chǎn)goB．outC．laterD．long
小題6:
A．familyB．lakeC．homeD．world
小題7:
A．ButB．AlsoC．ThusD．Still
小題8:
A．increasedB．improvedC．roseD．grew
小題9:
A．a(chǎn)skB．leadC．wantD．a(chǎn)llow
小題10:
A．flyB．raceC．swimD．sing
小題11:
A．a(chǎn)sleepB．a(chǎn)wayC．a(chǎn)roundD．a(chǎn)wake
小題12:
A．ideaB．opinionC．explanationD．excuse
小題13:
A．skyB．heavenC．flightD．plane
小題14:
A．hisB．herC．theirD．its
小題15:
A．respectB．rememberC．recognizeD．receive
小題16:
A．soB．insteadC．hardlyD．too
小題17:
A．climbedB．lookedC．reachedD．fell
小題18:
A．houseB．floorC．waterD．ground
小題19:
A．secretlyB．disappointedlyC．patientlyD．eagerly
小題20:
A．looked awayB．set outC．went byD．turned back

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

Against the supposition than forest fires in Alaska, Canada and Siberia warm the climate, scientists have discovered that cooling may occur in areas where burnt trees allow more snow to mirror more sunlight into space.
This finding suggests that taking steps to prevent northern forest to limit the release of greenhouse gases may warm the climate in northern regions. Usually large fires destroyed forests in these areas over the past decade. Scientists predict that with climate warming, fires may occur more frequently over next several centuries as result of a longer fire season. Sunlight taken in by the earth tends to cause warming, while heat mirrored back into space tends to cause cooling.
This is the first study to analyze all aspects of how northern fires influence climate. Earlier studies by other scientists have suggested that fire in northern regions speed up climate warming because greenhouse gases from burning trees and plants are released into the atmosphere and thus trap heat.
Scientists found that right after the fire, large amounts of greenhouse gases entered the atmosphere and caused warming. Ozone（臭氧）levels increased, and ash from the fire fell on far-off sea ice, darkening the surface and causing more radiation from the sun to be taken in. The following spring, however, the land within the area of the fire was brighter than before the fire, because fewer trees covered the ground. Snow on the ground mirrored more sunlight back into space, leading to cooling.
“We need to find out all possible ways to reduce the growth of greenhouse gases in the atmosphere.” Scientists tracked the change in amount of radiation entering and leaving the climate system as a result of the fire, and found a measurement closely related to the global air temperature. Typically, fire in northern regions occurs in the same area every 80 to 150 years. Scientists, however, found that when fire occurs more frequently, more radiation is lost from the earth and cooling results. Specifically, they determined when fire returns 20 years earlier than predicated, 0.5 watts per square meter of area burned are soaked up by the earth from greenhouse gases, but 0.9 watts per square meter will be sent back into space. The net effect is cooling. Watts are used to measure the rate at which energy is gained or lost from the earth.
46. According to the new findings, taking steps to prevent northern forest fires may _______.
A. result in a warming climate
B. cause the forest fires to occur more frequently
C. lead to a longer fire season
D. protect the forests and the environment there
47. The following are all the immediate effects after a forest fire EXCEPT _________.
A. large amounts of greenhouse gases enter the atmosphere
B. the levels of ozone which is a type of oxygen increase
C. snow on the ground mirrors more sunlight back into space
D. ashes from the fire fall on the ice surface and take in more radiation from the sun
48. Earlier studies about northern forest fires _________.
A. analyze all aspects of how northern fires influence climate
B. indicate that forest fires will pollute the atmosphere
C. suggest that people should take measures to protect environment
D. suggest that the fires will speed up climate warming
49. The underlined phrase “soak up” in the last paragraph most probably means ________.
A. released                B. absorbed               C. created                 D. distributed
50. From the passage we can draw a conclusion that forest fires in Alaska, Canada and Siberia may __________.
A. warm the climate as the supposition goes
B. allow more snow to reflect more sunlight into space and thus cool the climate
C. destroy large areas of forests and pollute the far-off sea ice
D. help to gain more energy rather than release more energy

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

When did you last visit a shopping mall? In many places, the answer would be “l(fā)ast weekend.” Some people go even more often. Why? For one thing, malls offer goods and services that people need all in one place: food, clothing, things for their houses, entertainment, even medical services. So, are malls one of the highlights of modern civilization? Environmental activists would say No! They would go even further and say that consumer behavior is causing a huge environmental disaster. They cause consumers of ignorance of the side effect of their shopping—urban sprawl (擴(kuò)大) .
Social scientists agree that patterns of development have changed the landscape a great deal in the last half century. Before 1950, most people lived in towns or cities and either walked to work or took public transportation. Only very wealthy people had automobiles. Farmers lived in rural areas or isolated villages and came into town only when they needed things they couldn’t produce themselves. If you gazed at the landscape you would see towns surrounded by countryside. Then a massive change occurred.
Automobiles became affordable and people were quick to adopt them. Now ambitious workers could live in the suburbs, the areas just outside cities, which started to grow rapidly. As long as there was lots of cheap land in the suburbs, no one paid much attention to the usage of that land. Malls, fast food restaurants, cinemas, and car dealerships spread out in large, flat buildings. These one–storey buildings and their parking lot took up a great deal space. Well– meaning farmers thought they were better off selling their land than growing crops. In ignorance, no one realized that once the land was built up in urban sprawl, the good farming land would be ruined forever. There was no way to preserve it.
Only in recent years have people come to mourn the old way of life as they have developed insight into the problems. Now people realize that urban sprawl has come with serious environmental problems. The negative aspects of sprawl include air and water pollution, loss of agricultural land, traffic jams, and the death of businesses in the old town centers. Many scholars think the time has come to analyze the problems better so we can develop appropriate policies to control further sprawl. Some think the best way to do is to educate citizens about their priceless environment.
小題1:What is mainly discussed in the passage?
A．Weekend FunB．Urban SprawlC．New AutomobilesD．Isolated Villages
小題2:What does the underlined word “They” refer to in the first paragraph?
A．ScientistsB．Activists.C．Farmers.D．Malls
小題3:Who do environmental activists blame for environmental problems?
A．Endangered animals.B．Shopping mall owners.
C．Unthinking shoppers.D．Ambitious farmers.
小題4:What do scholars think should be done about urban sprawl?
A．Understand the situations better.B．Follow customary policies.
C．Start school in shopping malls.D．Charge polluters a lot of money.
小題5:What is the scholars’ attitude toward urban sprawl?
A．Respectful.B．Negative.C．Positive.D．Doubtful.

查看答案和解析>>

同步練習(xí)冊(cè)答案