In movies，we often see the most popular teens dominate their peers on a mission.We know these stereotypes (陈规旧习) all too well and assume they are just that-blown up generalizations.But movies aside，is there some underlying truth that being popular makes teens more aggressive?
Published in the February issue of the journal American Sociological Review，one study followed approximately 3，700 students in 8th，9th and 10th grades for one school year and found that popular adolescents were more likely to act aggressively to climb the social hierarchy (等级制度) among their peers.This trend was apparent in both sexes.
Although popular teens were more likely to act aggressively，the researchers found an exception：adolescents in the top and the bottom parts of the social hierarchy displayed the least aggression toward others.
Robert Faris，a sociologist at the University of California，Davis，and coauthor of the study，says this may be because teens at the bottom of the totem pole (等级) don’t have the social power to pay off (成功) being aggressive，while kids at the top have no need to assert (维护) themselves.
“If an adolescent at the top of the social hierarchy were to act aggressively toward his or her peers，such action could signal insecurity or weakness rather than cement (巩固) the student’s position...”Faris says in a UC Davis Press Release.Simply put，the most popular kids have an easier time maintaining their statuses by being nice.
In the study，aggression was defined as any activity intended to “harm or cause pain” in another person.“Whether aggression is actually successful in promoting students to the top of the social ranks is still unclear，”the authors said.
【解题导语】 研究发现，受欢迎的青少年往往会支配别人，在行为上表现得更富有攻击性。
What does the passage mainly tell us?
A.What causes teens to be aggressive?
B.Popular teens are more aggressive.
C.Aggression helps teens be popular.
D.What kind of teens can be popular?
解析：选B。主旨大意题。根据第二段内容以及全文叙述可知，本文主要告诉我们：受欢迎的青少年往往更富有攻击性。
Teens at the bottom of the totem pole are not aggressive probably because________.
A.they can’t succeed by being aggressive
B.they can succeed by being nice
C.they needn’t be aggressive
D.they are well treated by others
解析：选A。细节理解题。从文章第四段内容可知，处于社会底层的孩子没有能力通过表现攻击性来获得社会地位。
According to Faris，if a boy at the top of the social hierarchy is aggressive to others，it shows that________.
A.he is no longer popular with others
B.he is really weak inside
C.he can’t keep his position
D.he wants to show his power
解析：选B。细节理解题。从文章倒数第二段内容可知，最受欢迎的孩子如果表现出攻击性，这是他们内心没有安全感和心虚的表现。
We can infer from the fifth paragraph that the most popular kids________.
A.tend to be more aggressive
B.don’t dominate other teens in a group
C.have more difficulty in maintaining their status
D.don’t have to be aggressive to keep their status
解析：选D。推理判断题。从文章倒数第二段可知，最受欢迎的孩子靠展示自己好的一面就可以维持其社会地位，没必要表现出攻击性。
B
“Choo, Choo!” Here comes the Chunnel train.Get aboard if you want to learn more about this underground transportation system.This is an unusual form of transportation，because it is a tunnel that trains travel through and not an actual form of transportation.
The Chunnel is actually the English nickname for the Channel Tunnel.In French, it is called Le tunnel sous la Manche.It is a rail tunnel beneath the English Channel at the Straits of Dover.It connects Cheriton in Kent，England with Sangatte in northern France.It is the second longest rail tunnel in the world.
Did you know that the British and the French had a race while they were building the Chunnel?The race was to see who could get to the middle of the tunnel first.The British won by a little bit.It took 15，000 workers over seven years to dig the tunnel.The tunnel was finished in 1994.
The completed Chunnel cost about $ 21 billion.But it all paid off，because it became very popular，very quick.Millions of people use it.Now it is getting even more popular.
There are three complete tunnels in the Chunnel.The two outside ones are the passenger trains.The small inner one is a guidance train.The guidance train is not used for transportation.Each track is exactly parallel to each other.
There are four different train systems in the Chunnel.The Eurostar is a high speed passenger service that connects London，Paris，Brussels，and Lille.The Eurotunnel shuttle is a rail ferry service.These shuttles carry cars and vans.These are railcars that allow drivers to drive their vehicles on and off.There are also two Eurotunnel goods service trains.
Now you know more about the Chunnel.Everybody off，this is the last stop.
【解题导语】 英吉利海峡隧道，又称海峡隧道或欧洲隧道。它的规模之大，耗时之长，费用之巨，设计之巧，让世人叹为观止。
The Channel Tunnel links________with________.
A.London;Paris B.Cheriton;Sangatte
C.Lille;Brussels D.Dover;Kent
解析：选B。细节理解题。根据第二段倒数第二句中的内容可知英吉利海峡隧道连接的是英国的Cheriton和法国的Sangatte。
Which of the following shows the structure of the tunnels in the Chunnel?
解析：选A。细节理解题。根据第五段中的“three complete tunnels;two outside ones;The small inner one”可判断A项是隧道的构造图。
The Eurotunnel shuttle is intended to carry________.
A.passengers
B.drivers and their vehicles
C.goods
D.staff members of the Chunnel
解析：选B。细节理解题。根据倒数第二段第三句、第四句和第五句中的内容可知这种隧道用来运载司机和车辆。
The text can most probably be________.
A.found in a guidebook
B.read in a magazine
C.broadcast on a train
D.heard in a railway station
解析：选C。推理判断题。结合第一段第二句中的内容以及最后一段中的内容可推断本文是列车上的广播内容。
In movies，we often see the most popular teens dominate their peers on a mission.We know these stereotypes (陈规旧习) all too well and assume they are just that-blown up generalizations.But movies aside，is there some underlying truth that being popular makes teens more aggressive?
Published in the February issue of the journal American Sociological Review，one study followed approximately 3，700 students in 8th，9th and 10th grades for one school year and found that popular adolescents were more likely to act aggressively to climb the social hierarchy (等级制度) among their peers.This trend was apparent in both sexes.
Although popular teens were more likely to act aggressively，the researchers found an exception：adolescents in the top and the bottom parts of the social hierarchy displayed the least aggression toward others.
Robert Faris，a sociologist at the University of California，Davis，and coauthor of the study，says this may be because teens at the bottom of the totem pole (等级) don’t have the social power to pay off (成功) being aggressive，while kids at the top have no need to assert (维护) themselves.
“If an adolescent at the top of the social hierarchy were to act aggressively toward his or her peers，such action could signal insecurity or weakness rather than cement (巩固) the student’s position...”Faris says in a UC Davis Press Release.Simply put，the most popular kids have an easier time maintaining their statuses by being nice.
In the study，aggression was defined as any activity intended to “harm or cause pain” in another person.“Whether aggression is actually successful in promoting students to the top of the social ranks is still unclear，”the authors said.
【解题导语】 研究发现，受欢迎的青少年往往会支配别人，在行为上表现得更富有攻击性。
What does the passage mainly tell us?
A.What causes teens to be aggressive?
B.Popular teens are more aggressive.
C.Aggression helps teens be popular.
D.What kind of teens can be popular?
解析：选B。主旨大意题。根据第二段内容以及全文叙述可知，本文主要告诉我们：受欢迎的青少年往往更富有攻击性。
Teens at the bottom of the totem pole are not aggressive probably because________.
A.they can’t succeed by being aggressive
B.they can succeed by being nice
C.they needn’t be aggressive
D.they are well treated by others
解析：选A。细节理解题。从文章第四段内容可知，处于社会底层的孩子没有能力通过表现攻击性来获得社会地位。
According to Faris，if a boy at the top of the social hierarchy is aggressive to others，it shows that________.
A.he is no longer popular with others
B.he is really weak inside
C.he can’t keep his position
D.he wants to show his power
解析：选B。细节理解题。从文章倒数第二段内容可知，最受欢迎的孩子如果表现出攻击性，这是他们内心没有安全感和心虚的表现。
We can infer from the fifth paragraph that the most popular kids________.
A.tend to be more aggressive
B.don’t dominate other teens in a group
C.have more difficulty in maintaining their status
D.don’t have to be aggressive to keep their status
解析：选D。推理判断题。从文章倒数第二段可知，最受欢迎的孩子靠展示自己好的一面就可以维持其社会地位，没必要表现出攻击性。
B
“Choo, Choo!” Here comes the Chunnel train.Get aboard if you want to learn more about this underground transportation system.This is an unusual form of transportation，because it is a tunnel that trains travel through and not an actual form of transportation.
The Chunnel is actually the English nickname for the Channel Tunnel.In French, it is called Le tunnel sous la Manche.It is a rail tunnel beneath the English Channel at the Straits of Dover.It connects Cheriton in Kent，England with Sangatte in northern France.It is the second longest rail tunnel in the world.
Did you know that the British and the French had a race while they were building the Chunnel?The race was to see who could get to the middle of the tunnel first.The British won by a little bit.It took 15，000 workers over seven years to dig the tunnel.The tunnel was finished in 1994.
The completed Chunnel cost about $ 21 billion.But it all paid off，because it became very popular，very quick.Millions of people use it.Now it is getting even more popular.
There are three complete tunnels in the Chunnel.The two outside ones are the passenger trains.The small inner one is a guidance train.The guidance train is not used for transportation.Each track is exactly parallel to each other.
There are four different train systems in the Chunnel.The Eurostar is a high speed passenger service that connects London，Paris，Brussels，and Lille.The Eurotunnel shuttle is a rail ferry service.These shuttles carry cars and vans.These are railcars that allow drivers to drive their vehicles on and off.There are also two Eurotunnel goods service trains.
Now you know more about the Chunnel.Everybody off，this is the last stop.
【解题导语】 英吉利海峡隧道，又称海峡隧道或欧洲隧道。它的规模之大，耗时之长，费用之巨，设计之巧，让世人叹为观止。
The Channel Tunnel links________with________.
A.London;Paris B.Cheriton;Sangatte
C.Lille;Brussels D.Dover;Kent
解析：选B。细节理解题。根据第二段倒数第二句中的内容可知英吉利海峡隧道连接的是英国的Cheriton和法国的Sangatte。
Which of the following shows the structure of the tunnels in the Chunnel?
解析：选A。细节理解题。根据第五段中的“three complete tunnels;two outside ones;The small inner one”可判断A项是隧道的构造图。
The Eurotunnel shuttle is intended to carry________.
A.passengers
B.drivers and their vehicles
C.goods
D.staff members of the Chunnel
解析：选B。细节理解题。根据倒数第二段第三句、第四句和第五句中的内容可知这种隧道用来运载司机和车辆。
The text can most probably be________.
A.found in a guidebook
B.read in a magazine
C.broadcast on a train
D.heard in a railway station
解析：选C。推理判断题。结合第一段第二句中的内容以及最后一段中的内容可推断本文是列车上的广播内容。
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