C
A light emitting diode （发光二极管）, or L．E．D．, is a device that shines when electricity passes through it．But it works differently than traditional kinds of light bulbs．Light emitting diodes use less energy and last much longer than bulbs with a filament （灯丝） inside．L．E．                               D．’s are also cooler to the touch, and shine a lot brighter than they used to．  
Red L．E．D．’s have long been used as signal lights on electronic equipment．But now light emitting diodes also come in blue and other colors．Colored L．E．D．’s are used to show images on everything from wireless phones to huge video signs．And white L．E．D．’s are being used increasingly to replace traditional lighting systems．  
But all these require electricity．In poor countries, people often burn fuel to produce light．But the smoke can make people sick．So an electrical engineering professor from Canada started a project to produce L．E．       D．lighting systems for the developing world．These lights are powered by batteries that can be recharged with energy from the sun．The batteries can also be charged through other ways, such as wind power and water power．
Professor David Irvine-Halliday tells the story of how he got the idea．In 1997, while climbing in the Annapurna mountains in Nepal, he saw a small school．All the children were outside．He looked through a window and saw that inside the school was dark．The school had a sign that read: "We have no teachers．If you want to stay and teach for a few days, we would be very pleased．" Professor Irvine-Halliday says that experience had a big effect on him．Back at the University of Calgary, he was on the Internet one day．He saw a company in Japan selling bright white L．E．                           D．’s．So he built a light with some．This is how he began the Light Up the World Foundation．
48．Compared with traditional kinds of light bulbs, L．E．D．’S________．
A．waste a lot of energy                    B．need shorter time to make
C．shine much brighter                 D．are warmer to touch
49．According to the passage, we know that L．E．D．’s________．
A．will replace all the lights            B．will be more and more popular
C．will be only colored ones               D．will be only used in developing countries
50．According to the passage, we can infer that the purpose of the Light Up the World Foundation is to________．
A．develop L．E．D．lighting system for the developing world                   
B．sell bright white L．E．D．’s
C．collect money for developing countries                                        
D．earn money by selling L．E．D．’s

从A、B、C、D四个选项中，找出其音标与所给单词的读音相同的选项。

dusk

A. [d??sk]            B. [dusk]         C. [djusk]            D. [desk]    

latter 

       A. ['leit??]          B. ['l??t??]          C. ['lɑ:t??]            D. ['let??]      

attitude

       A. ['??titju:d]        B. [??ti'tju:d]       C. ['??titju:d]        D. ['??titu:d]  

nation

       A. ['nai????n]           B. ['ni????n]        C. ['neis??n]           D. ['nei????n] 

disaster

       A. [di'zeist??]          B. ['disist??]           C. [di'zɑ:st??]       D. [de'sɑ:st??] 

Ben Olsen had great careers as professional players. His story tells a lot about the past, present and future of professional soccer in America.

Ben Olsen was an important part of D.C. United's early success. He was the top new player, or rookie of the year, in 1998. His young professional career reached a high point the next season. D.C. United won the M.L.S. Cup, the league championship（锦标赛）, on the strength（力量） of a Most Valuable Player performance by Olsen. He scored one of two goals for his team in the win against the Los Angeles Galaxy.

Ben Olsen looks back on his score in that championship as his most memorable. "I'd lost a lot of championships before that year, so that was a special game." said Ben Olsen.

Like many top American soccer players, Olsen played overseas. He joined the club Nottingham Forest in Britain. He says different leagues have different styles of play. "Some teams are very fast and athletic. Some teams are a little bit more low pressure on the ball and more skillful players. England has always been known to be a fast and physical league."

Olsen was also a part of the United States World Cup team of 2006. He says playing for his country was something he will never forget. 

Ben Olsen has had five operations for severe ankle（脚踝） injuries. Still, he had one of his best years in 2007. He scored seven goals including a "hat trick"-- three in one game.

Ben Olsen celebrates his third goal in one game against the New York Red Bull in June of 2007

He was recognized for his outstanding play with an M.L.S. Best Eleven award. He accepted the award in a wheelchair after a minor operation became major ankle surgery（外科手术）. Ben Olsen retired after the 2009 season. Today he is an assistant coach with D.C. United.

1.When did Ben Olsen begin to win championship?

A． In 1998          B．Next season        C．In 1999           D．In 2006

2.What does the underlined word ‘rookie’ mean in this sentence?

A．Success           B．New player        C．professional career  D．championship

3.According to the passage, which of the following is true?

A．Ben Olsen has a deep love for his country

B．Ben Olsen scored three goals in 1999

C．Top American soccer players never played oversea

D．He scored ten goals in 2007

4.What do you think is the best title for the passage?

A. Ben Olsen—the best soccer player

B. Ben Olsen’s professional career

C. Ben Olsen and D.C. United

D. An introduction to Ben Olsen

C

A light emitting diode （发光二极管）, or L．E．D．, is a device that shines when electricity passes through it．But it works differently than traditional kinds of light bulbs．Light emitting diodes use less energy and last much longer than bulbs with a filament （灯丝） inside．L．E．                               D．’s are also cooler to the touch, and shine a lot brighter than they used to．  

Red L．E．D．’s have long been used as signal lights on electronic equipment．But now light emitting diodes also come in blue and other colors．Colored L．E．D．’s are used to show images on everything from wireless phones to huge video signs．And white L．E．D．’s are being used increasingly to replace traditional lighting systems．  

But all these require electricity．In poor countries, people often burn fuel to produce light．But the smoke can make people sick．So an electrical engineering professor from Canada started a project to produce L．E．       D．lighting systems for the developing world．These lights are powered by batteries that can be recharged with energy from the sun．The batteries can also be charged through other ways, such as wind power and water power．

Professor David Irvine-Halliday tells the story of how he got the idea．In 1997, while climbing in the Annapurna mountains in Nepal, he saw a small school．All the children were outside．He looked through a window and saw that inside the school was dark．The school had a sign that read: "We have no teachers．If you want to stay and teach for a few days, we would be very pleased．" Professor Irvine-Halliday says that experience had a big effect on him．Back at the University of Calgary, he was on the Internet one day．He saw a company in Japan selling bright white L．E．                           D．’s．So he built a light with some．This is how he began the Light Up the World Foundation．

48．Compared with traditional kinds of light bulbs, L．E．D．’S________．

A．waste a lot of energy                    B．need shorter time to make

C．shine much brighter                 D．are warmer to touch

49．According to the passage, we know that L．E．D．’s________．

A．will replace all the lights            B．will be more and more popular

C．will be only colored ones               D．will be only used in developing countries

50．According to the passage, we can infer that the purpose of the Light Up the World Foundation is to________．

A．develop L．E．D．lighting system for the developing world                   

B．sell bright white L．E．D．’s

C．collect money for developing countries                                        

D．earn money by selling L．E．D．’s

Ben Olsen had great careers as professional players. His story tells a lot about the past, present and future of professional soccer in America.
Ben Olsen was an important part of D.C. United's early success. He was the top new player, or rookie of the year, in 1998. His young professional career reached a high point the next season. D.C. United won the M.L.S. Cup, the league championship（锦标赛）, on the strength（力量） of a Most Valuable Player performance by Olsen. He scored one of two goals for his team in the win against the Los Angeles Galaxy.
Ben Olsen looks back on his score in that championship as his most memorable. "I'd lost a lot of championships before that year, so that was a special game." said Ben Olsen.
Like many top American soccer players, Olsen played overseas. He joined the club Nottingham Forest in Britain. He says different leagues have different styles of play. "Some teams are very fast and athletic. Some teams are a little bit more low pressure on the ball and more skillful players. England has always been known to be a fast and physical league."
Olsen was also a part of the United States World Cup team of 2006. He says playing for his country was something he will never forget. 
Ben Olsen has had five operations for severe ankle（脚踝） injuries. Still, he had one of his best years in 2007. He scored seven goals including a "hat trick"-- three in one game.
Ben Olsen celebrates his third goal in one game against the New York Red Bull in June of 2007
He was recognized for his outstanding play with an M.L.S. Best Eleven award. He accepted the award in a wheelchair after a minor operation became major ankle surgery（外科手术）. Ben Olsen retired after the 2009 season. Today he is an assistant coach with D.C. United.
【小题1】When did Ben Olsen begin to win championship?