Europe’s deadly outbreak of a rare form of E. coli bacteria (大肠杆菌) has brought new attention to food safety issues. One of the problems when people get sick from food is that the simplest question is often difficult or even impossible to answer. Just what did the people eat that made them sick?

Of course, one way to avoid these medical mysteries is to keep dangerous organisms out of the food supply. This is easier said than done, but scientists keep looking for new ways.

Scientists in the United States have developed an experimental system that uses a high-tech optical scanner. The system is designed to identify the presence of contaminants(致污物) like soil or animal waste on fresh produce. These can be sources of E. coli. E. coli bacteria naturally live in the intestines(肠) of humans and many animals. Most kinds of E. coli are harmless but some can make people sick.

The new scanner can also show damage and imperfections that might make the produce unappealing to shoppers.

Scientists designed the system at a Department of Agriculture research center in Beltsville, Maryland. Moon Kim of the Agricultural Research Service led the team.

MOON KIM: “We were requested, we were asked, to develop a method to detect contamination in produce. So we started with the apple as the model sample.”

The scanner uses a high-speed camera placed over the conveyer belt that moves the produce along. As the apples move along the belt, the scanner captures images of each piece of fruit.

Moon Kim says the team hopes the system will be available before long.

MOON KIM: “We are targeting for development in commercial plants for the next several years.”

The scanner can direct a sorting machine to separate the bad apples from the good ones. The system is currently able to show the surface of only half the apple as it speeds by. The inventers hope to improve the process so it can show the whole surface.

1.What is the main topic of the text?

A．Bacteria.          B．A high-tech scanner. C．A camera          D．Food safety.

2.E. coli bacteria ______.

A．broke out all over the world               B．comes from soil or animal waste

C．is extremely harmful to health              D．does not cause illness

3.The high-tech scanner ______.

A．can help to sort out different fruits

B．make the produce appeal to shoppers

C．can only capture images of the whole apple

D．can identify the presence of contaminants

4.What can be inferred from the text?

A．The scanner needs to be improved.

B．The scanner will be available in the next several years.

C．Moon Kim is unwilling to develop the scanner.

D．The scanner is connected to a sorting machine.

Ibrahim became disabled after contracting polio (小儿麻痹症) when he was three years old. At first his parents, like many other parents of disabled children in Niger, did not want to send him to school. They were worried he would be laughed at by his classmates.  

    Despite his disability, and his parents’ doubts, Ibrahim was determined to go to school. “When I was eight,” Ibrahim says, “other kids of my age were going to school while I stayed at home. I did not like that. So, I pestered (缠着) my parents until they finally let me go to school.”

   Ibrahim’s parents sent him to a private school nearby. Although the journey to and from school was a short one, it still wasn’t easy for Ibrahim. He had to use his hands to help him move along, protecting them with plastic slippers. But at least he was getting an education.

    However, after only a year in school, Ibrahim’s education was interrupted when his parents separated. His mother did not have the means to continue paying for his tuition.

    In 2007, Ibrahim received some money to be fitted with a leg brace (支架), corrective shoes and his first pair of crutches (拐杖). Now that he was more mobile than before, the most important thing for him was to find a way to go back to school. 

    “I wanted to start school again last October,” Ibrahim says. “After my mother told me she could not afford it, I went to visit some of my relatives for support. And I collected 5,000 francs CFA (US $8) to pay my tuition for half a year. I will find the rest of the money somehow.”

    Ibrahim attends a school in which he is the only disabled student. According to his teacher, he is among the top five students in a class of 55.

1. Why did Ibrahim’s parents prefer Ibrahim to stay at home? 

A. There was a lot of housework for him to do.  

B. They had no money to pay for his tuition.

C. There were not enough schools in the country.  

D. They were afraid the students would make fun of him.

2. How did Ibrahim go to school before his parents separated? 

A. He went to school on his wheelchair.

B. He went to school on his parents’ bicycle.   

C. He walked to school with the support of his hands.

D. He walked to school using a pair of crutches.

3.Ibrahim’s education was interrupted because of his _____.

A. parents’ doubts     B. lack of tuition     C. physical disability    D. terrible mood 

4.The best title for the passage might be _____.

A. A long way to go             B. Determined to learn

C. The only disabled student        D. I did not like that

Europe’s deadly outbreak of a rare form of E. coli bacteria (大肠杆菌) has brought new attention to food safety issues. One of the problems when people get sick from food is that the simplest question is often difficult or even impossible to answer. Just what did the people eat that made them sick?

Of course, one way to avoid these medical mysteries is to keep dangerous organisms out of the food supply. This is easier said than done, but scientists keep looking for new ways.

Scientists in the United States have developed an experimental system that uses a high-tech optical scanner. The system is designed to identify the presence of contaminants(致污物) like soil or animal waste on fresh produce. These can be sources of E. coli. E. coli bacteria naturally live in the intestines(肠) of humans and many animals. Most kinds of E. coli are harmless but some can make people sick.

The new scanner can also show damage and imperfections that might make the produce unappealing to shoppers.

Scientists designed the system at a Department of Agriculture research center in Beltsville, Maryland. Moon Kim of the Agricultural Research Service led the team.

MOON KIM: “We were requested, we were asked, to develop a method to detect contamination in produce. So we started with the apple as the model sample.”

The scanner uses a high-speed camera placed over the conveyer belt that moves the produce along. As the apples move along the belt, the scanner captures images of each piece of fruit.

Moon Kim says the team hopes the system will be available before long.

MOON KIM: “We are targeting for development in commercial plants for the next several years.”

The scanner can direct a sorting machine to separate the bad apples from the good ones. The system is currently able to show the surface of only half the apple as it speeds by. The inventers hope to improve the process so it can show the whole surface.

1.What is the main topic of the text?

A. Bacteria.????????????? B. A high-tech scanner.????????????? ? C. A camera????????????? D. Food safety.

2.E. coli bacteria ______.

A. broke out all over the world????????????? ????????????? ????????????? ? B. comes from soil or animal waste

C. is extremely harmful to health????????????? ????????????? ????????????? ? D. does not cause illness

3.The high-tech scanner ______.

A. can help to sort out different fruits

B. make the produce appeal to shoppers

C. can only capture images of the whole apple

D. can identify the presence of contaminants

4.What can be inferred from the text?

A. The scanner needs to be improved.

B. The scanner will be available in the next several years.

C. Moon Kim is unwilling to develop the scanner.

D. The scanner is connected to a sorting machine.

Our plan was to drive into Cambridge, catch the 7:34 train to Liverpool Street Station, then to separate and meet again for lunch．We should have arrived at Liverpool at 9:19, but due to a typical London fog, the train had to move along so slowly that it wasn’t until 10:30 that it got there．In spite of our late arrival, Joan, my wife’s sister, decided that she would go to see the Crown Jewels in the Tower of London while we went shopping．It was only after her sister had disappeared into the fog that my wife realized that we hadn’t decided where we should meet for lunch．Since I had our three tickets for the concert in my pocket, this was indeed a problem．There seemed to be nothing we could do except taking a taxi to the Tower of London, and try to find her there．Needless to say, we didn’t find her.
It was now one o’clock, and the concert began at 2:30．“Perhaps she will think of waiting outside the concert hall,” suggested my wife hopefully．By this time the fog was so thick that road traffic had to stop, and the only way to get there was by underground railway．Hand in hand we felt our way along the road to where we thought the nearest station should be．An hour later we were still trying to find it．Just as I was about to lose my temper completely when we met a blind man tapping his way confidently through the fog．With his help we found Tower Hill tube station just fifty yards down the road.
By now it was far too late even to try to get to the concert hall before the performance began at 2:30, so we decided to return to Cambridge．It took seven long hours instead of the usual two to make that journey．Nor were we able to get any food and drink on the train．Tired and hungry we finally reached home at ten, opening the door to the sound of the telephone bell．It was Joan; she had seen the Crown Jewels, had managed to get another ticket for concert, and had had a wonderful dinner at a restaurant near the hotel where she decided to stay for the night．Now she was ringing to discover whether we had had an equally successful day.
1．Why was Joan separated from her sister and her brother-in-law?
A．they could not see each other because of the fog.
B．Joan had not seen Crown Jewels.
C．They planned to do different things until lunch time.
D．The writer didn’t want to go to the concert.
2．What did the writer plan to do in the afternoon?
A．Go to the concert.                      B．See the Crown Jewels.
C．Return to Cambridge.                    D．Go shopping.
3．The reason why they didn’t all meet for lunch was that _______.
A．They lost their way in the fog
B．they forgot to make necessary arrangement
C．they waited at different places and didn’t meet each other
D．the couple couldn’t find the underground station
4．It’s quite clear that for Joan the trip to London had been ________.
A．spilt by the fog                      B．quite tiring  
C．rather disappointing               D．very enjoyable

When you arrive at the Shanghai Expo site, the first thing you will see is a huge red building in the ancient Chinese dougong(斗拱) architectural(建筑的) style. Built according to the concept of “Oriental Crown”, the China Pavilion(展厅) is the largest national pavilion at the Expo.

Themed “Search of the East”, the pavilion is divided into three sections. Footprint of the East on the top floor shows the change of Chinese cities; a Journey of Wisdom on the second floor, China’s four great inventions—the compass, paper, printing and gunpowder are displayed; and Blossoming(盛开的) City on the ground floor shows the scenery of future cities.

Take a lift, and you’ll be taken to the 8,500-square-meter top floor. There, in a film by Lu Chuan, you’ll see how Chinese cities have changed, especially over the past 30 years. The 10-minute movie is shown in a 600-seat theater.

The painting Along the River During Qingming Festival, is considered a national treasure. It describes life in Bianjing, which is today’s Kaifeng in Henan province. More than 1,000 years ago, it was the largest city in the world. Multimedia technology makes more than 1,500 characters of the painting walk and move along a 100-meter-long wall.

Four families are chosen from Zhejiang province to show their daily lives. Films of the families and furniture from the households are exhibited. At the pavilion, you’ll get insight into the daily lives of these families at different periods. The designers believe these will mirror the great changes Zhejiang has seen since China’s reform and opening-up policy in the late 1970s.

Which of the following statements is TRUE according to the article?

   A. Visitors can see the China Pavilion built in a modern style.

   B. The theme of the China Pavilion is “Oriental Crown”.

   C. Visitors can get to the top floor of the China Pavilion by lift.

   D. The China Pavilion is designed by famous film director Lu Chuan.

If a visitor wants to enjoy the scenery of future cities, he will go to ______.

   A. the top floor       B. the second floor   C. the ground floor    D. a 600-seat theater

The painting Along the River During Qingming Festival in the China Pavilion is attractive and special because ______.

A. it shows what life was like in Beijing, the capital of China.   

B. it shows the development of Chinese cities.     

C. it describes what happened in history.      

D. Visitors can see more than 1,500 characters of the painting walking along a 100-meter-long wall with the help of multimedia technology.

What’s the main idea of the article?

   A. A brief introduction to the China Pavilion.  B. The theme of the China Pavilion.        

   C. The films of the China Pavilion.          D. The structure of the China Pavilion.