Look closely at ,your hands-are they clean? It doesn't matter how many times you was  your hands. They're still crowded with microbes, which are also called "germs" or "bacteria". Microbes are everywhere. But don't worry-most microbes don't harm you. and many actually help you stay alive.
Now,  scientists say the microbes that live on our hands could be used in a surprising way: fighting crime.
When police visit the scene of a crime, they often look for fingerprints to try to identifythe criminal.  But according to a recent study, investigators could even use microbes to help break a criminal case.
Every person has his or her own set of microbes that live on their hands, according to scientists at,the University of:Colorado. That means the mix of different kinds of microbes on everybody's hand is unique-much like one's fingerprint.
The scientists wanted to know whether this microbe mix could be used as a new kind of fingerprint-especially in a crime scene where fingerprints might be hard to find.  And policemen use forensics such as studying fingerprints to identify the criminal.
"Microbe fingerprints are harder to hide," said Noah Fierer, one of the scientists.
"You can't sterilize(为……杀菌) a surface just by wiping it off. "
His team compared the bacteria on the hands of 273 people with the bacteria found on each person's computer keyboard. For the study, the keyboards had been used only by the people who were being tested. The study showed that the mix of microbes from each per- son's hands matched the mix of microbes on that person's keyboard. The scientists were easily able to tell the 273 people apart-just by looking at their keyboards.
But there are a lot more than 273 criminals. Other scientists wonder whetherthe microbe fingerprint can really be that useful. 
Fierer agrees that scientists have a lot more work to do before the microbe fingerprint will be a useful tool．
【小题1】According to the passage,  microbes on people's hands_____

“I never expected that I would be so busy. Why can’t there be 25 hours in a day?” complained Liu Ran in Hong Kong as mid – term exams were going on.
The 18 – year – old girl was Shandong Province’s top scorer in this year’s college entrance examination. After graduating from Tai’ an No. 1 High School, she chose the Chinese University of Hong Kong, although two famous universities in mainland promised her a place.
“I want to experience a more international school and social life in Hong Kong. I’m majoring in（主修）journalism, so Hong Kong will surly help widen my horizons,” Liu said.
It is two months since Liu first set foot on Hong Kong. She missed home a lot at the beginning, because of the food and language problems.
“The canteen offers mostly Western or Guangdong food, but it’s convenient to cook for ourselves in our dormitory if we like. People speak Cantonese and almost all classes are in English,” Liu explained.
Her English and Cantonese are now both improving, but she still needs more time to adapt to the new environment.
“I’m happy that I made the right decision to study here. With a mix of the Eastern and Western cultures, there is so much to discover and learn,” she said.
Liu has 18 credit hours of classes every week and 23 non – credit hours every other week. She has signed up for four associations including the Chinese Language Debating Team and the drama club. Essays, book reports and presentations also take plenty of time to prepare.
【小题1】What would be the best title for the text?

A．to see more of an international school and social life

B．in order to enrich her experiences

C．because it is more famous than any university in mainland

D．Both A and B

“I never expected that I would be so busy. Why can’t there be 25 hours in a day?” complained Liu Ran in Hong Kong as mid – term exams were going on.

The 18 – year – old girl was Shandong Province’s top scorer in this year’s college entrance examination. After graduating from Tai’ an No. 1 High School, she chose the Chinese University of Hong Kong, although two famous universities in mainland promised her a place.

“I want to experience a more international school and social life in Hong Kong. I’m majoring in（主修）journalism, so Hong Kong will surly help widen my horizons,” Liu said.

It is two months since Liu first set foot on Hong Kong. She missed home a lot at the beginning, because of the food and language problems.

“The canteen offers mostly Western or Guangdong food, but it’s convenient to cook for ourselves in our dormitory if we like. People speak Cantonese and almost all classes are in English,” Liu explained.

Her English and Cantonese are now both improving, but she still needs more time to adapt to the new environment.

“I’m happy that I made the right decision to study here. With a mix of the Eastern and Western cultures, there is so much to discover and learn,” she said.

Liu has 18 credit hours of classes every week and 23 non – credit hours every other week. She has signed up for four associations including the Chinese Language Debating Team and the drama club. Essays, book reports and presentations also take plenty of time to prepare.

What would be the best title for the text?

 A．Hong Kong dreams       B．Looking for a job in Hong Kong

C．Social life in Hong Kong D．the Chinese University of Hong Kong

Liu Ran chose the Chinese University of Hong Kong          .

A．to see more of an international school and social life

B．in order to enrich her experiences

C．because it is more famous than any university in mainland

D．Both A and B

Which of the following statement is NOT true?

A．She is improving her English and Cantonese.

B．She is allowed to cook in the dormitory.

C．She is too busy to join in activities outside class.

D．She hasn’t adapted herself to the new environment.

From the passage we can infer that she was          with her school life.

A．satisfied           B．unhappy

C．bored                  D．disappointed

This morning, a Virgin Atantin 747 Jumbo Jet became the first commercial airplane to fly on biofuel. The short flight from London to Amsterdam used a blend of 20% babassu(棕榈) oil mixed with 80% conventional jet fuel.
What was really exciting about the flight was the fact that the engine did not have to be altered in any way for the biofuel to work While this is a great initial step in trying to reduce CO₂(carbon-dioxide)emissions(排放)from airplanes. there are a lot of hurdles (障碍)that still need to be overcome.
First and foremost, unlike the normal fuel used to run airplanes (known as Jet A),biofuel freezes at high altitudes. Also, Jet‘A’fuel burns consistently (at the same pace),which means it provides a safe and reliable fuel for long flights--engineers are not sure if biofuel will be able to do the same.
The biggest hurdle to a full biofuel switch is our ability to be able to grow enough crops that can be converted to biofuel. There are two concerns that scientists have in this matter – the first is that the land to grow the extra crops will come from clearing more of our forests and the second is that since it competes with what we eat, the price of food will go up.
However, Richard Branson of Virgin Airlines, envisions that if biofuel starts to replace oil on a greater basis, it will be manufactured from algae（藻类）produced in sewage treatment plants, not from food sources.
Birgin Airlines is not the only one trying to look for alternative fuel sources. Earlier this year, an Airbus A380 used another alternative fuel－a man-made mix of gas-to-liquid, in one of its four engines. The flight was tested by Rolls Royce (manufacturer of jet engines), in partnership with Shell (an oil company). Rolls Royce is also working with Air New Zealand on a similar project.
While a complete switch to alternative fuel may take years, it is very encouraging to see airlines, oil companies and airplane manufacturers all coming together to try to make it happen!
【小题1】．Why does Virgin Airlines try to replace normal fuel with biofuel?

阅读下面的短文，请根据短文后的要求答题（请注意问题后的字数要求）。

One thing Britain is famous for is pubs, and no trip to the UK would be complete without a visit to one of the thousands of pubs across the country.

Pubs play an important part in the social structure of the country. They are places where all ages and social classes mix to talk, do business, or just spend a couple of quiet hours before heading home in the evening.

There are many different types of beer available in pubs. Traditional British beer is called bitter, or ale, and is usually served at room temperature. As a result, the British are famous for their ‘warm beer’! If you prefer a cold beer, ask for lager. This beer is a light yellow in colour whereas bitter is usually a darker brown. All beers are served as pints (500 ml) or halves (250ml). To order, you need to ask for a pint or half, and then name the beer. So, you could say “                 .”

Wine, red or white, is normally available in all pubs, as are spirits such as whisky, gin or vodka.

It is not, however, necessary to drink alcohol. Non-alcoholic drinks are called soft drinks. You can have juice, lemonade or cola, among others.

If you visit a pub in a group, it is important to pay for your ‘round’. This means that you buy a drink for everyone in your group. Not buying your round is a big social mistake! Remember that you need to order and pay for your drinks at the bar.

So, follow these tips if you want to get the most out of visiting a pub, and, “cheers!”

What is the best title of the passage? ? (Please answer within 10 words.)

Which sentence in the passage can be replaced by the following one?

If you don’t buy a drink for everyone in your group, you are socially wrong.

Please fill in the blank in the third paragraph with proper words or phrases to complete the sentence. (Please answer within 10 words.)

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If you are in a pub, what would you like to drink? Why? (Please answer within 30 words.)

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Translate the underlined sentence in the first paragraph into Chinese.

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