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．According to the passage, microbes on people's hands_____
| A．do more harm than good | B．are easy to get rid of |
| C．are almost the same | D．might help find crimes |
The underlined word "forensics" in Paragraph 5 probably refers to________.
| A．the scientific test used by police |
| B．a new kind of fingerprint |
| C．a kind of bacteria'in people's hands |
| D．a kind of newly invented keyboard |
What did Fierer's team find through the study?
| A．They found the criminal among the 237 people. |
| B．They could tell who had used which computer. |
| C．Computer keyboards couldn't keep people's microbe fingerprints. |
| D．People's characters could be identified by the keyboards they used. |
We can learn from the passage that ______.
| A．your microbes may give you away |
| B．scientists will come to a clear conclusion soon |
| C．many scientists think microbe fingerprints useless |
| D．the microbe fingerprint has been used in many cases |
The main idea of the passage is about_____.
| A．the importance of fingerprints | B．how to clean our hands |
| C．the usefulness of microbes | D．different germs on our hands |
One of my fondest memories as a child is going by the river and sitting idly on the bank. There I would enjoy the peace and quiet, watch the water rush downstream and listen to the singing of birds and the rustling of leaves in the trees. I would also watch the bamboo trees bend under pressure from the wind and watch them return gracefully to their original position after the wind had died down.
When I think about the bamboo trees’ ability to bounce back or return to its original position, the word “resilience” comes to my mind. When used in reference to a person, this word means the ability to readily recover from shock, depression or any other negative situation that stretches the limits of a person’s emotions.
Have you ever felt like you are about to lose control of your emotions? Have you ever felt like you are at your breaking point? Thankfully, you have survived the experience to live to talk about it.
During the experience you probably felt a mix of emotions that threatened your health. You felt emotionally tired, mentally exhausted and you most likely bored unpleasant physical symptoms.
Life is a mixture of good times and bad times, happy moments and unhappy moments. The next time you are experiencing one of those bad times or unhappy moments that take you close to your breaking point, bend, but don’t break. Try your best not to let the situation get the best of you.
A measure of hope will take you through the unpleasant moments. Will hope for a better tomorrow or a better situation, things may not be as bad as they seem to be. The unpleasant moment may be easier to deal with if the end result is worth having.
If the situation gets tough and you are at your breaking point, show resilience. Like the bamboo trees, bend, but don’t break!What does the underlined word “resilience” mean in Paragraph 2?
| A．The ability to overcome any difficulty. |
| B．The quality of hoping for a better tomorrow. |
| C．The quality of being brave at the breaking point. |
| D．The ability to recover easily and quickly from unpleasant or damaging events. |
Which of the following can be inferred from the passage?
| A．Life is like a bamboo tree that never breaks. |
| B．Whatever difficulties we may meet with in our life, we can bend, but can never break. |
| C．Life is a mixture of good times and bad times, happy moments and unhappy moments. |
| D．If you get over your breaking point, you can survive to live longer and more happily than others. |
According to the passage, which of the following is NOT true?
| A．The author was an idle child when he was living near the river. |
| B．We should try our best not to let our bad times get the best of us. |
| C．Our being likely to lose control of our emotions is common in our life. |
| D．We should always believe things may not be as bad as they seem to be. |
Which of the following would be the best title of the passage?
| A．Bend, but don’t break. |
| B．My wonderful childhood. |
| C．The bamboo trees. |
| D．Love the bamboo trees and your life. |
That cold January night, I was growing sick of my life in San Francisco. There I was, walking home at one in the morning after a tiring practice at the theatre. With opening night only a week away, I was still learning my lines(台词). I was having trouble dealing with my part-time job at the bank and my acting at night at the same time. As I walked, I thought seriously about giving up both acting and San Francisco. City life had become too much for me.
As I walked down empty streets under tall buildings, I felt very small and cold. I began running, both to keep warm and to keep away from any possible robbers (抢劫犯). Very few people were still out except a few sad-looking homeless people under blankets.
About a block from my apartment, I heard a sound behind me. I turned quickly, half expecting to see someone with a knife or a gun. The street was empty. All I saw was a shining streetlight. Still, the noise had made me nervous, so I started to run faster. Not until I reached my apartment building and unlocked the door did I realize what the noise had been. It had been my wallet falling to the sidewalk.
Suddenly I wasn’t cold or tired anymore. I ran out of the door and back to where I’d heard the noise. Although I searched the sidewalk anxiously for fifteen minutes, my wallet was nowhere to be found.
Just as I was about to give up the search, I heard the garbage truck (垃圾车) pull up to the sidewalk next to me. When a voice called from the inside, “ Alisa Camacho ?” I thought I was dreaming. How could this man know my name? The door opened, and out jumped a small red-haired man with an amused look in his eye. “Is this what you’re looking for?” he asked, holding up a small square shape.
It was nearly 3 A.M. by the time I got into bed. I wouldn’t get much sleep that night, but I had gotten my wallet back. I also had gotten back some enjoyment of city life. I realized that the city couldn’t be a bad place as long as people were willing to help each other.How did the writer feel when she was walking home after work?
| A．Cold and sick. |
| B．Fortunate and helpful. |
| C．Satisfied and cheerful. |
| D．Disappointed and helpless. |
On her way home the writer _______.
| A．lost her wallet unknowingly |
| B．was stopped by a garbage truck driver |
| C．was robbed of her wallet by an armed man |
| D．found some homeless people following her |
In the fifth paragraph, why did the writer say she was dreaming?
| A．Someone offered to take her back home. |
| B．A red-haired man came to see her. |
| C．She heard someone call her name. |
| D．Her wallet was found in a garbage truck. |
From the text, we can infer that the writer _________.
| A．would stop working at night |
| B．would stay on in San Francisco |
| C．would make friends with cleaners |
| D．would give up her job at the bank. |
Pango was a village in India. The people were poor. However, they were not unhappy. After all, their forefathers had lived in the same way for centuries.
Then one day, some visitors from the city arrived. They told the villagers there were some people elsewhere who liked to eat frog’s legs. However, they did not have enough frogs of their own, and so they wanted to buy frogs from other places.
This seemed like money for nothing. There were millions of frogs in the fields around, and they were no use to the villagers. All they had to do was catch them. Agreement was reached, and the children were sent into the fields to catch frogs. Every week a truck arrived to collect the catch and hand over the money. For the first time, the people were able to dream of a better future. But the dream didn’t last long.
The change was hardly noticed at first, but it seemed as if the crops were not doing so well. More worrying was that the children fell ill more often, and, there seemed to be more insects around lately.
The villagers decided that they couldn’t just wait to see the crops failing and the children getting weak. They would have to use the money earned to buy pesticides (杀虫剂）and medicines. Soon there was no money left.
Then the people realized what was happening. It was the frog. They hadn’t been useless. They had been doing an important job—eating insects. Now with so many frogs killed, the insects were increasing more rapidly. They were damaging the crops and spreading diseases.
Now, the people are still poor. But in the evenings they sit in the village square and listen to sounds of insects and frogs. These sounds of the night now have a much deeper meaning.From Paragraph 1 we learn that the villagers ________.
| A．worked very hard for centuries |
| B．dreamed of having a better life |
| C．were poor but somewhat content |
| D．lived a different life from their forefathers |
Why did the villagers agree to sell frogs?
| A．The frogs were easy money. |
| B．They needed money to buy visitors. |
| C．They wanted to please the visitors. |
| D．The frogs made too much noise. |
What might be the cause of the children’s sickness?
| A．The crops didn’t do well. |
| B．There were too many insects. |
| C．The visitors brought in diseases. |
| D．The pesticides were overused. |
What can we infer from the last sentence of the text?
| A．Happiness comes from peaceful life in the country. |
| B．Health is more important than money. |
| C．The harmony between man and nature is important. |
| D．Good old days will never be forgotten. |
The physical education office of Peking University announced on Aug 27 that the university would build a golf course near Weiming Lake. Golf would thus become an elective course for Peking University's students in the near future.
Peking University's eastern sports ground will be rebuilt into two soccer fields and one golf course. The latter will be designed as 90 meters long and 40 meters wide, occupying only a quarter of the whole sports ground.
The director of the physical education office revealed that a student would make only one stroke on the ground, and one class session would hold no more than 30 students.
Some teachers suspect such an activity will be a waste of university's limited land resources, but the director thinks otherwise, for the place can also be used for such sports as javelin or discus throw.
It is reported that currently Peking University is still discussing about fees to be charged for the after-class use of the golf links.What is the best heading of the news?
| A．Golf in Peking University |
| B．One Golf Course to be Built in Peking University |
| C．Peking University to Teach Students Golf |
| D．Come to Peking University to Play Golf |
What does the underlined word “suspect” mean in the sentence?
| A．think | B．praise | C．hate | D．add |
We can learn from the news that _______.
| A．all the teachers support the building of the Golf course |
| B．the fees for the after-class use of the golf links has been set |
| C．students of Peking University must attend the golf course |
| D．there are only 30 students in one Golf class period |
A
Fun day
To celebrate the Year of the Snake
Organized by Lam Tin Youth Centre and Kwun Tong High school
Date：2 February 2013
Time：10 am – 5 pm
Place：Kwn Tong Playground
Fee: $ 20 (buy three get one free)
Programmes：drama, lion dance, magic show and ballet performance
Highlights: 1) enter the lucky draw to win a digital camera
2) learn to make festival food
John us on the Fun day! 
All are welcome!
Note:
★Ticket are available at the General Office of Lam Tin Youth Centre.
★For those who would like to be a volunteer, please contact Miss Olivia Wong one week before
the activity.What you have just read is a .
| A．note | B．report | C．schedule | D．poster |
What is going to take place on 2 February, 2013?
| A．A big event to welcome a Chinese new year. |
| B．A social gathering to raise money for wildlife. |
| C．A party for close friends to meet and have fun. |
| D．A meeting of Kwun Tong High School students. |
How much do you have to pay in total if four of you go together?
| A．$ 20. | B．$ 40 | C．$ 60. | D．$ 80. |
Which of the following statements is true?
| A．Tickets are sold in Kwun Tong High School. |
| B．It’s unnecessary to take soft drinks with you. |
| C．Free digital cameras are provided for everybody. |
| D．Festival food will be served without extra charge. |