The Peppered Moth, a kind of insect(昆虫), is found in England. It is light brown in colour and likes to settle(栖息) on trees which are also light brown. This makes the moth difficult to be seen and birds are less likely to notice and eat it.
But with the development of industry(工业) , smoke from factories began to reach the trees where the moth settled. It made the trees blacker. Then something very strange took place: in industrial areas, the Peppered Moth began to change colour. It became darker as well. Though the change took several years, some scientists soon notice that newly-born moths were a little darker than usual.
A scientist with the name Kettlewell decided to make a careful study of this phenomenon(现象). He marked some of the light moths and some of the darker ones, and set them free in the woods near Bermingham, an industrial city. Later, he recaptured(重新捕获) as many as the marked moths as possible. The results were as follows.
light moths darker moths
Moths set free 201 601
moths recaptured 34(16%) 206(34%)
Kettlewell's research (研究) was done in the early 1950s. Soon afterwards Britain introduced new laws to reduce smoke and factory pollution.
Can you imagine what would happen to the Peppered Moth as the air became cleaner again?

1.
The Peppered Moth began to change its colour in industrial areas because ______.
1. A.
  it itself liked to
2. B.
  it could be like the colour of its living-place
3. C.
  it had to keep the balance of nature
4. D.
  it was usually dark brown
2.
From the results of Kettlewell's research, we can see that ______.
1. A.
  many more of the light moths were killed or eaten
2. B.
  more than one-fifth of the light moths was not killed
3. C.
  three times as many dark moths were kept safe as light ones
4. D.
  more dark moths were killed in industrial areas
3.
As the air became cleaner, ______.
1. A.
  the number of the light moths became larger
2. B.
  the total number of the light moths remained unchanged
3. C.
  there were more of the darker moths and fewer of the light ones
4. D.
  the darker moths changed into the light ones suddenly

Classified Ads Business Opportunities
WE BUY MACHINE TOOL COMPANY NYC will buy machine tools.
Reply 7832673 MODERN BEAUTIFUL APARTMENT
For sale. Near station.
Call Dora 6041360
WEST COAST FAST FOOD
For sale. Upscale quick food.
Most popular in county.
Only serious inquiries.
Call 3421557 FAMOUS DELI
For sale.
Quick takeover and catch the season.
Owner will train. Very profitable.
Call Rity 2299689
WANT TRUCK BUSINESS
Doing containers.
Import / export, 1 truck or many.
Call 3328725 GOURMET SHOP in the heart of wealthy neighborhood is looking for buyers for this outstanding operation.
Call Greg 5755718
Aunold Bread Clearwater Flamust SELL some financial possession.
Call Walter 5304017 AUTOMOBILE BUSINESS NOW FOR SALE will talk deal if terms are agreeable.
Call Mr Kent 9497221
WANT TO OWN A BEAUTIFUL APARTMENT
Good location and good service
Call Stein 6560232 If you own a small successful business but have no time for yourself, I am an honest woman looking to become a working partner in your business.
Call Mrs Meikle 4783784

1.
If you want to buy an automobile business, you should call______.
1. A.
  3421577
2. B.
  6560232
3. C.
  9497221
4. D.
  3328725
2.
Whom should Dora call?
1. A.
  Mr Kent
2. B.
  Stein
3. C.
  Walter
4. D.
  Mrs Meikle
3.
How many selling ads are there in the chart?
1. A.
  Four
2. B.
  Six
3. C.
  Eight
4. D.
  Ten

Robert Spring, a 19th century forger (伪造签字者), was as good at his profession that he was able to make his living for 15 years by selling false signatures of famous Americans. Spring was born in England in 1813 and arrived in Philadelphia in 1858 to open a bookstore. At first he make some money by selling his small but genuine of early U.S. autographs (亲笔签字). Discovering his ability at copying handwriting, he began imitating signatures of George Washington and Ban Franklin and writing them on the title pages of old books. To make less the chance of detection (发觉), he sent his forgeries (伪造物) to England and Canada for sale and circulation (销售).
Forgers have a hard time selling their products. A forger can't approach a respectable buyer but must deal with people who don't have much knowledge in the field. Forgers have many ways to make their work look real. For example, they buy old books to use the aged paper of the title page, and they can treat paper and ink with chemicals.
In Spring's time, right after the Civil War, Britain was still fond of the Southern states, so Spring invented a respectable maiden lady known as Miss Fanny Jackson, the only daughter of General "Stonewall" Jackson. For several years Miss Fanny's economic problems forced her to sell a great number of letters and manuscripts belonging to her famous father. Spring had to work very hard to satisfy the demand. All this activity did not prevent Spring from dying in poverty, leaving sharp-eye experts the difficult task of separating this forgeries from the originals

1.
Why did Spring sell his autographs in England and Canada?
1. A.
  There was a greater demand there than in America
2. B.
  There was less chance of being detected there
3. C.
  Britain was Spring's birthplace
4. D.
  The price were higher in England and Canada
2.
After the Civil War, there was a great demand in Britain for _______
1. A.
  Southern money
2. B.
  signatures of George Washington and Ben Franklin
3. C.
  Southern manuscripts and letters
4. D.
  Civil War battle plans
3.
Robert Spring spent 15 years _______
1. A.
  running a bookstore in Philadelphia
2. B.
  corresponding with Miss Fanny Jackson
3. C.
  as a forger
4. D.
  as a respectable dealer
4.
According to the passage, forgeries are usually sold to _______
1. A.
  sharp-eyed experts
2. B.
  persons who aren't experts
3. C.
  book dealers
4. D.
  owner of the old books
5.
Who was Miss Fanny Jackson?
1. A.
  The only daughter of General "Stonewall" Jackson
2. B.
  A little-known girl who sold her father's papers to Robert Spring
3. C.
  Robert Spring's daughter
4. D.
  An imaginary person created by Spring

Seeing a volcano erupt is a wonderful experience, and you can really feel the beat by climbing to the summit(山顶) of Pacaya for a close-up view. There are guided tours every day up this highly active volcano from Antigua, giving travelers a chance to see Mother Nature at her most powerful.
Pacaya is an easy drive from Antigua, a beautiful city with many colorful houses along its old streets that are turned into art-works during its Holy Week festival. No matter when you come to Antigua, you won’t miss the Pacaya-tour companies.
But climbing Pacaya is no easy job: it is 2560 metres high, and reaching the summit takes two to three hours of seemingly one-step-forward and two-step-back movements. As you climb, you hear the dull sounds of eruptions high above steaming. Hot remains from recent eruptions begin to line the path as you are near the active summit; the McKenney Cone(火山锥).
Many tours are timed so when you arrive at the cone of the volcano there is plenty of time for sunset and the full contrast between the erupting red lava and the darkening sky. On a good day the view from the summit is extremely exciting. The active mouth boils, sending red lava over its sides, and once in a while shoots hot streams up to 100 metres into the air. There is a strong bad smell in the air even if you take care to be upwind of the cone. As evening turns deeper into the night, the burning lava quietly falls down the side of the volcano. For you, too, it is time to get down

1.
What is the main purpose of this passage?
1. A.
  To attract tourists to Pacaya
2. B.
  To describe the beauty of Pacaya
3. C.
  To introduce guided tours to Pacaya
4. D.
  To explain the power of nature at Pacaya
2.
Antigua is a city ______.
1. A.
  where people can have a close-up view of the volcano
2. B.
  where the daring Pacaya tour starts
3. C.
  that lies on the summit of Pacaya
4. D.
  that is famous for its tour companies
3.
Climbing to the McKenney Cone, people will______.
1. A.
  walk down to the active summit
2. B.
  hear the continuous loud screams from above
3. C.
  make greater efforts than to other summits
4. D.
  see a path lined with remains of earlier eruptions
4.
Many tours are timed for people to______.
1. A.
  get down the mountain in time when night falls
2. B.
  avoid the smell from the upwind direction of the cone
3. C.
  enjoy the fantastic eruption against the darkening sky
4. D.
  appreciate the scenery of the 2560-metre-high mountain
5.
The short passage probably comes from______.
1. A.
  a travel journal
2. B.
  a popular science magazine
3. C.
  A novel
4. D.
  an advertisement

You never see them, but they're with you every time you fly. They record where you are going, how fast you're traveling and whether everything on your airplane is functioning normally. Their ability to withstand almost any disaster makes them seem like something out of a comic book. They're known as the black box.
When planes fall from the sky, as a Yemeni airliner did on its way to Comoros Islands in the India ocean June 30, 2009, the black box is the best bet for identifying what went wrong. So when a French submarine (潜水艇) detected the device's homing signal five days later, the discovery marked a huge step toward determining the cause of a tragedy in which 152 passengers were killed.
In 1958, Australian scientist David Warren developed a flight-memory recorder that would track basic information like altitude and direction. That was the first mode for a black box, which became a requirement on all U.S. commercial flights by 1960. Early models often failed to withstand crashes, however, so in 1965 the device was completely redesigned and moved to the rear of the plane – the area least subject to（易遭受）impact – from its original position in the landing wells (起落架舱). The same year, the Federal Aviation Authority required that the boxes, which were never actually black, be painted orange or yellow to aid visibility.
Modern airplanes have two black boxes: a voice recorder, which tracks pilots' conversations, and a flight-data recorder, which monitors fuel levels, engine noises and other operating functions that help investigators reconstruct the aircraft's final moments. Placed in an insulated (隔绝的) case and surrounded by a quarter-inch-thick panels of stainless steel, the boxes can withstand massive force and temperatures up to 2,000℉. When submerged, they're also able to emit signals from depths of 20,000 ft.
Experts believe the boxes from Air France Flight 447, which crashed near Brazil on June 1, 2009, are in water nearly that deep, but statistics say they're still likely to turn up. In the approximately 20 deep-sea crashes over the past 30 years, only one plane's black boxes were never recovered

1.
What information could be found from the black box on the Yemeni airliner?
1. A.
  Data for analyzing the cause of the crash
2. B.
  The total number of passengers on board
3. C.
  The scene of the crash and extent of the damage
4. D.
  Homing signals sent by the pilot before the crash
2.
Why was the black box redesigned in 1965?
1. A.
  New materials became available by that time
2. B.
  Too much space was needed for its installation
3. C.
  The early models often got damaged in the crash
4. D.
  The early models didn't provide the needed data
3.
Why did the Federal Aviation Authority require the black boxes be painted orange or yellow?
1. A.
  To distinguish them from the colour of the plane
2. B.
  To caution people to handle them with care
3. C.
  To make them easily identifiable
4. D.
  To obey international standards
4.
What do we know about the black boxes from Air France Flight 447?
1. A.
  There is still a good chance of their being recovered
2. B.
  There is an urgent need for them to be reconstructed
3. C.
  They have stopped sending homing signals
4. D.
  They were destroyed somewhere near Brazil

When I first saw the book Alice in Lace, I thought I was going to like it. And as it turned out, I love it! I love books about life and being a kid. And Alice in Lace is just that kind. It’s a humorous book about being thirteen and the problems kids might face. Alice and her friends get a strange assignment from their totally cool teacher, Mr. Everett. It was like playing the game of “Life,” but you had to act it out.
So Pamela is pregnant, Elizabeth buys a car and Alice gets married. Well, of course, Pamela wasn’t really pregnant, but she walked around with a pillow under her shirt to get people’s reactions. Elizabeth didn’t really buy a car, but she went to the car lot and made the sales guy think she was. The whole class got assignments like these! I would love to do something like that for school.
In the book Alice has a lot to think about. “Getting married is hard!” Alice says. She has to plan the ceremony, the honeymoon, find a place to live, pay for furniture and two months’ rent and food. Maybe she and her “husband” could work it out — if they were getting on fine!
Although this book was funny, it really made me think about how problems like these could really mess up your life. Take teenage pregnancy for example. How could you have a baby and stay in school? You couldn’t find a babysitter every day to stay with your kid. A child really consumes your life. I understand what the teacher was trying to do. He was trying to discourage the class from getting into these problems by giving them a glimpse of life. As someone about to become a teenager myself, I can say sometimes a story makes you think about what’s up ahead.
Overall, I would say this book is wonderful. My favorite part of the book is discovering that if I like it, there are seven other Alice books I can check out at my local library. I love this book, and I hope you will too

1.
We can infer from the passage that Pamela, Elizabeth and Alice _______
1. A.
  turn out to be the author’s classmates
2. B.
  are characters in Alice in Lace
3. C.
  get along quite well
4. D.
  become dismissed from school
2.
By saying “getting married is hard” in the paragraph 3, Alice means ______
1. A.
  life isn’t easy as expected
2. B.
  it is hard to deal with her husband
3. C.
  she regrets getting married
4. D.
  it’s fun to get married
3.
Why did Mr. Everett give his students such assignments?
1. A.
  To encourage them to enjoy a meaningful life
2. B.
  To prevent them getting into those troubles at an early age
3. C.
  To make them realize the hardship of life
4. D.
  To teach them how to make a living
4.
The author writes the passage mainly to _____
1. A.
  advise us to buy Alice in Lace
2. B.
  tell us how wonderful Mr. Everett’s idea is
3. C.
  share her inspiration from Alice in Lace
4. D.
  show off her reading ability

XUE Bai, a 21-year-old university student, hopes to volunteer for Beijing's 2008 Olympics. "I want to do something for the Olympics. It is also a kind of learning for me," said the fourth-year student at Beijing Foreign Studies University. Now it is time for Xue to act on her plan. The Beijing Organizing Committee for the Games of the 2008 Olympiad will start to recruit(招募)volunteers on August 28.
The Olympics will need around 70,000 volunteers and the Paralympic Games(残疾人奥运会) will need another 30,000. University students like Xue will make up the majority of the volunteers. But the Olympics also need other volunteers - ordinary citizens and foreigners, for example. Students in Beijing should apply through their universities. Other volunteers may apply online or submit a written application. The online application system and a hotline will be open next Monday. For applicants outside Beijing, the application process begins in December. There is plenty of work for volunteers to do. For example, there will be chances to help publicize the games over the next two years. During the games themselves, volunteers will clean, serve food, marshal(礼仪引导)or offer language help.
The Sydney Olympics in 2000 was the first that placed special emphasis on the role of volunteers. It used more than 45,000 volunteers in different roles. In the 2004 Athens Olympics, around 45,000 volunteers were used. More than 70,000 volunteers will be needed for the Olympic games and Paralympic Games in 2012, the London Olympic Organizing Committee has said

1.
Xue Bai is willing to be a volunteer for the Beijing Olympics for the purpose of______.
1. A.
  watching live Olympic matches
2. B.
  learning more
3. C.
  meeting his favorite sports stars
4. D.
  making money
2.
It is estimated that volunteers for Beijing's 2008 Olympics are mainly ______.
1. A.
  ordinary citizens
2. B.
  foreigners
3. C.
  university students
4. D.
  applicants outside Beijing
3.
Volunteers have played an very important role in Olympics since______.
1. A.
  the 1996 Atlanta Olympics
2. B.
  the 2000 Sydney Olympics
3. C.
  the 2004 Athens Olympics
4. D.
  the 2008 Beijing Olympics
4.
The passage mainly tells us______.
1. A.
  the history of volunteers in Olympics
2. B.
  hat volunteers will do in the 2008 Olympics
3. C.
  who can apply to be volunteers for Beijing Olympics
4. D.
  volunteers for the 2008 Olympics are wanted

Multitasking
People who multitask all the time may be the worst at doing two things at once, a new research suggests. The findings, based on performances and self-evaluation by about 275 college students, indicate that many people multitask not out of a desire to increase productivity, but because they are easily distracted (分心) and can’t focus on one activity. And “those people turn out to be the worst at handling different things,” said David Sanbonmatsu, a psychologist at the University of Utah.
Sanbonmatsu and his colleagues gave the students a set of tests and asked them to report how often they multitasked, how good they thought they were at it, and how sensation-seeking (寻求刺激) or imperative (冲动) they were. They then evaluated the participants’ multitasking ability with a tricky mental task that required the students to do simple mathematical calculations while remembering a set of letters.
Not surprisingly, the scientists said, most people thought they were better than average at multitasking, and those who thought they were better at it were more likely to report using a cellphone while driving or viewing multiple kinds of media at once. But those who frequently deal with many things at the same time were found to perform the worst at the actual multitasking test. They also were more likely to admit to sensation-seeking and impulsive behavior, which connects with how easily people get bored and distracted.
“People multitask not because it’s going to lead to greater productivity, but because they’re distractible, and they get sucked into things that are not as important.” Sanbonmatsu said.
Adam Gazzaley, a researcher at the University of California, San Francisco, who was not a member of the research group, said one limitation of the study was that it couldn’t find out whether people who start out less focused toward multitasking or whether people’s recognizing and understanding abilities change as a result of multitasking.
The findings do suggest, however, why the sensation-seeker who multitask the most may enjoy risky distracted driving. “People who are multitasking are generally less sensitive to risky situations.” said Paul Atchley, another researcher not in the group. “This may partly explain why people go in for these situations even though they’re dangerous.”

1.
The research led by Sanbonmatsu indicates that people who multitask______.
1. A.
  seek high productivity constantly
2. B.
  prefer handling different things when getting bored
3. C.
  are more focused when doing many things at a time
4. D.
  have the poorest results in doing various things at the same time
2.
When Sanbonmatsu and his colleagues conducted their research, they______.
1. A.
  assessed the multitasking ability of the students
2. B.
  evaluated the academic achievements of the students
3. C.
  analyzed the effects of the participants’ tricky mental tasks
4. D.
  measured the changes of the students’ understanding ability
3.
According to Sanbonmatsu, people multitask because of their______.
1. A.
  limited power in calculation
2. B.
  interests in doing things differently
3. C.
  inability to concentrate on one task
4. D.
  impulsive desire to try new things
4.
From the last paragraph, we can learn that multitaskers usually______.
1. A.
  drive very skillfully
2. B.
  go in for different tasks
3. C.
  fail to react quickly to potential dangers
4. D.
  refuse to explain the reasons for their behavior

Here are some of the world’s most impressive subways
The Tokyo Metro and Toei Lines Features: The Tokyo Metro and Toei lines that compose Tokyo’s massive(庞大的)subway system carry almost 8 million people each day, making it the busiest system in the world. The system is famous for its oshiya— literally, “pusher”— who pushes passengers into crowded subway cars so the doors can close. And you think your commute (上下班路程) is hell.
The Moscow Metro Features: The Moscow Metro has some of the most beautiful stations in the world. The best of them were built during the Stalinist era and feature chandeliers(枝形吊灯), marble moldings and elaborate murals(精美的壁画). With more than 7 million riders a day, keeping all that marble clean has got to be a burden.
The Hong Kong MTR Features: The Hong Kong MTR has the distinction of being one of the few subway systems in the world that actually turns a profit. It’s privately owned and uses real estate development along its tracks to increase income and ridership. It also introduced “Octopus cards” that allow people to not only pay their fares electronically, but buy stuff at convenience stores, supermarkets, restaurants and even parking meters. It’s estimated that 95 % of all adults in Hong Kong own an Octopus card.
Shanghai Metro Features: Shanghai is the third city in China to build a metro system, and it has become the country’s largest in the 12 years since it opened．Shanghai Metro has 142 miles of track and plans to add another 180 miles within five years. By that .point, it would be three times larger than Chicago “L”. The system carries about 2.18 million people a day.
The London Metro Features: Londoners call their subway the Underground, even though 55 percent of it lies above ground. No matter when you’ve got the oldest mass-transit system in the world, you can call it anything you like．Trains started in1863 and they’ve been running ever since. Some 3 million people ride each day, every one of them remembering to “Mind the gap”.

1.
Which one can provide the riders some wonderful decorations at the stations?
1. A.
  The Tokyo Metro and Toei Lines
2. B.
  The Moscow Metro
3. C.
  The London Metro
4. D.
  The Hong Kong MTR
2.
________ is done with the purpose of making money．
1. A.
  The Tokyo Metro and Toei Lines
2. B.
  The Moscow Metro
3. C.
  The London Metro
4. D.
  The Hong Kong MTR
3.
We can learn from the passage that Shanghai Metro____________．
1. A.
  carries the most people each day
2. B.
  is the world’s largest
3. C.
  may be larger than the Chicago “L” in the future
4. D.
  is the busiest in the world
4.
What do we know about the Hong Kong MTR?
1. A.
  It is not owned by state
2. B.
  It has become the country’s largest subway since it opened
3. C.
  It carries the most people every day
4. D.
  It is the busiest system in the world

Ways to Deal with the Problem of Energy
There are different ways in which people try to deal with the problem of energy.One way is the greater production of common energy sources,such as coal,oil and gas.The trouble with these sources,however,is that they are not renewable.
Another way is energy conservation(节能),which means using energy more efficiently.In some very cold countries people build special houses to save energy.They place materials between the inside and the outside of the walls of the house to keep the cold out and warmth in.The house is heated by the lights,the body heat of the people and the other equipment in it.
Finally,renewable energy sources are used even though they are often expensive to develop.One form of these is geothermal energy.In certain parts of the world the temperature of the earth increases thirty degrees centigrate with each kilometer down.At six kilometers,therefore,it rises to nearly 200degrees.To get the heat,water is pumped down into the rocks and back up to the surface.Heat from the earth is already used in certain countries

1.
The writer tells about “the special houses”because they______
1. A.
  show the excellent skills of the builders
2. B.
  serve as an example of the energy conservation
3. C.
  are heated by different sources of energy
4. D.
  are warmer than other types of energy
2.
The underlaned words”geothermal energy”in the third paragraph mean____
1. A.
  renewable source
2. B.
  underground source
3. C.
  heat inside the earth
4. D.
  temperature of the earth
3.
At a place where the surface temperature is 15degrees centigrade,how deep do you have to dig so as to get a temperature of 75 degrees centigrade?
1. A.
  One km
2. B.
  Two km
3. C.
  Three km
4. D.
  Four km

0 10289 10297 10303 10307 10313 10315 10319 10325 10327 10333 10339 10343 10345 10349 10355 10357 10363 10367 10369 10373 10375 10379 10381 10383 10384 10385 10387 10388 10389 10391 10393 10397 10399 10403 10405 10409 10415 10417 10423 10427 10429 10433 10439 10445 10447 10453 10457 10459 10465 10469 10475 10483 151629

	light moths	darker moths
Moths set free	201	601
moths recaptured	34(16%)	206(34%)

WE BUY MACHINE TOOL COMPANY NYC will buy machine tools. Reply 7832673	MODERN BEAUTIFUL APARTMENT For sale. Near station. Call Dora 6041360
WEST COAST FAST FOOD For sale. Upscale quick food. Most popular in county. Only serious inquiries. Call 3421557	FAMOUS DELI For sale. Quick takeover and catch the season. Owner will train. Very profitable. Call Rity 2299689
WANT TRUCK BUSINESS Doing containers. Import / export, 1 truck or many. Call 3328725	GOURMET SHOP in the heart of wealthy neighborhood is looking for buyers for this outstanding operation. Call Greg 5755718
Aunold Bread Clearwater Flamust SELL some financial possession. Call Walter 5304017	AUTOMOBILE BUSINESS NOW FOR SALE will talk deal if terms are agreeable. Call Mr Kent 9497221
WANT TO OWN A BEAUTIFUL APARTMENT Good location and good service Call Stein 6560232	If you own a small successful business but have no time for yourself, I am an honest woman looking to become a working partner in your business. Call Mrs Meikle 4783784

The Tokyo Metro and Toei Lines	Features: The Tokyo Metro and Toei lines that compose Tokyo’s massive(庞大的)subway system carry almost 8 million people each day, making it the busiest system in the world. The system is famous for its oshiya— literally, “pusher”— who pushes passengers into crowded subway cars so the doors can close. And you think your commute (上下班路程) is hell.
The Moscow Metro	Features: The Moscow Metro has some of the most beautiful stations in the world. The best of them were built during the Stalinist era and feature chandeliers(枝形吊灯), marble moldings and elaborate murals(精美的壁画). With more than 7 million riders a day, keeping all that marble clean has got to be a burden.
The Hong Kong MTR	Features: The Hong Kong MTR has the distinction of being one of the few subway systems in the world that actually turns a profit. It’s privately owned and uses real estate development along its tracks to increase income and ridership. It also introduced “Octopus cards” that allow people to not only pay their fares electronically, but buy stuff at convenience stores, supermarkets, restaurants and even parking meters. It’s estimated that 95 % of all adults in Hong Kong own an Octopus card.
Shanghai Metro	Features: Shanghai is the third city in China to build a metro system, and it has become the country’s largest in the 12 years since it opened．Shanghai Metro has 142 miles of track and plans to add another 180 miles within five years. By that .point, it would be three times larger than Chicago “L”. The system carries about 2.18 million people a day.
The London Metro	Features: Londoners call their subway the Underground, even though 55 percent of it lies above ground. No matter when you’ve got the oldest mass-transit system in the world, you can call it anything you like．Trains started in1863 and they’ve been running ever since. Some 3 million people ride each day, every one of them remembering to “Mind the gap”.

The Peppered Moth began to change its colour in industrial areas because ______.

From the results of Kettlewell's research, we can see that ______.

As the air became cleaner, ______.

If you want to buy an automobile business, you should call______.

Whom should Dora call?

How many selling ads are there in the chart?

Why did Spring sell his autographs in England and Canada?

After the Civil War, there was a great demand in Britain for _______

Robert Spring spent 15 years _______

According to the passage, forgeries are usually sold to _______

Who was Miss Fanny Jackson?

What is the main purpose of this passage?

Antigua is a city ______.

Climbing to the McKenney Cone, people will______.

Many tours are timed for people to______.

The short passage probably comes from______.

What information could be found from the black box on the Yemeni airliner?

Why was the black box redesigned in 1965?

Why did the Federal Aviation Authority require the black boxes be painted orange or yellow?

What do we know about the black boxes from Air France Flight 447?

We can infer from the passage that Pamela, Elizabeth and Alice _______

By saying “getting married is hard” in the paragraph 3, Alice means ______

Why did Mr. Everett give his students such assignments?

The author writes the passage mainly to _____

Xue Bai is willing to be a volunteer for the Beijing Olympics for the purpose of______.

It is estimated that volunteers for Beijing's 2008 Olympics are mainly ______.

Volunteers have played an very important role in Olympics since______.

The passage mainly tells us______.

The research led by Sanbonmatsu indicates that people who multitask______.

When Sanbonmatsu and his colleagues conducted their research, they______.

According to Sanbonmatsu, people multitask because of their______.

From the last paragraph, we can learn that multitaskers usually______.

Which one can provide the riders some wonderful decorations at the stations?

________ is done with the purpose of making money．

We can learn from the passage that Shanghai Metro____________．

What do we know about the Hong Kong MTR?

The writer tells about “the special houses”because they______

The underlaned words”geothermal energy”in the third paragraph mean____

At a place where the surface temperature is 15degrees centigrade,how deep do you have to dig so as to get a temperature of 75 degrees centigrade?

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