The world’s biggest Internet search engine, Google, has proven once again to be king of the Web. Users can download “Google Wi-Fi” software and then enjoy free Wi-Fi service available in some US cities since last Tuesday.
Wi-Fi is short for “Wireless Fidelity”(无线上网). It allows laptop computers and personal digital assistants to connect to the Internet at high speed by radio sigal.
A person with a Wi-Fi enabled computer can connect to the Internet when near one of the network’s access points. The place covered by one or several access points is called a hotspot. Google had already set up two “hotspots” in the US city of San Francisco which provide a free Wi-Fe service.
The Wi- Fi technology even allows users to enjoy a free Internet phone service. Some scientists argue that Wi-Fi may replace mobile phone networks.
Wi-Fi is stioo limited to a few cities, where there are “ hotspots”. But its capability(容量) of sending information has already done better than that of the mobile phone network, even that of 3G (Third Generation telecommunication technology). Some scientists have started to call Wi-Fi 4G.
In addition to a high speed Internet connection, Fi-Fi has other advantages compared to mobile phones. We-Fi is global. The same Wi-Fi system works in different countries around the world. Different from using cell phones, you don’t need to change computers to use Internet phones when you go to other places and most importantly, many Internet phones cost you nothing at all.
【小题1】 Wi-Fi is not available in cities without_____.

B

From E-mail to online shopping, you may think you’ve heard everything there to know about the electronic frontier （新领域）．But with hundreds of thousands of Web pages being added weekly, there are plenty of surprises out there．Here are some of the most intriguing （有迷惑力的）．

……

Put your kid on a greeting card．Here is how: simply take some pictures with a regular camera, and then ask the photo service to develop them digitally （数字化）．For a small fee, you’ll receive your photos on a desk．Put that into your computer and, with a few clicks of the mouse, you can view your photos on the screen．With a few more keystrokes, you can attach the photos to email and send them to friends and relatives worldwide．

　　Sign on to one or several greeting card’s Websites （http://www．cardcentral．net/ is an index of more than 1200 electronic card sites） and create an electronic birthday or holiday card．Using your digital photos, you can paste your grandchildren onto the cover．

　　If you don’t want to use your own photos, go to cards．amzon．com to browse （浏览） hundreds of images in over 30 categories…all of which you can attach to an electronic greeting card for free．For a nominal fee（很低的费用）you can choose from a library of 75,000 images at http://www．phontodisc．com/．

　　Call Australia for free．To have a telephone conversation over the Internet, the person you want to talk to no longer needs a computer．Now all you need to talk to someone in Sydney is one computer with speakers, a microphone, a sound card and some software （available at http://www．vocaltec．com/ or Mricrosoft．com）．Typically, you’ll pay a monthly fee （usually under $20） to a service provider, but after that, the calls themselves are local．Sound quality is the same as that of a cell phone．

　　Even if you don’t have a computer, you can still use the Web to reduce your long distance phone costs．Some companies offer a service that lets you use an ordinary phone to call another ordinary phone, but charge only a few cents per minute for US calls, because they send them through the Internet．

　　Today 48 percent of American homes have computers…a figure that is expected to climb to 60 percent by 2003．And by the end of the next decade, Americans will likely be spending more time shopping, banking, investing and learning on the Internet than in the real world．If you can’t do or find something on the Net today, you probably can tomorrow．

60．Over the Internet, you ________．

       A．can hear everything there

       B．will meet with plenty of surprises which come out every week．

       C．will hear the things about the electronic frontier

       D．can find some things are very interesting

61．From the passage we can infer that _________．

       A．fewer people will use the Internet in the following ten years

       B．more people will study in the regular school by the end of the next decade

       C．fewer people will go to the regular school in the following ten years

       D．more money will be needed for a long-distance call by the end of the next decade

62．If you want to attach to photo to your e-mail, you have to ________ it．

       A．digitalize　　  B．take　　　　   C．picture　　　　      D．send

63．Which of the following is NOT true?

       A．A telephone conversation over the Internet can be carried out without computers．

       B．Over the Internet, the receiver of the phone conversation doesn’t need a computer．

       C．The phone conversations over the Internet are much cheaper．

       D．The long-distance calls are local themselves．

C
Holding a cell phone against your ear or storing it in your pocket may be dangerous to your health. This explains a warning that cell phone manufacturers include in the small print that is often ignored when a new phone is purchased. Apple, for example, doesn’t want iPhones to come closer to you than 1.5 centimeters; Research In Motion, BlackBerry’s manufacturer, recommends 2.5 centimeters.
If health issues arise from cell phone use, the possible effects are huge. Voice calls - Americans chat on cell phones 2.26 trillion(万亿)minutes annually - earn $109 billion for the wireless carriers.
Devra Davis, an expert who has worked for the University of Pittsburgh, has published a book about cell phone radiation, “Disconnect.” The book surveys scientific research and concludes the question is not settled.
Brain cancer is a concern that Ms. Davis examines. Over all, there has not been an increase in its incidence since cell phones arrived. But the average masks an increase in brain cancer in the 20-to-29 age group and a drop for the older population.
“Most cancers have multiple causes,” she says, but she points to laboratory research that suggests low-energy radiation could damage cells that could possibly lead to cancer.
Children are more vulnerable to radiation than adults, Ms. Davis and other scientists point out. Radiation that penetrates only five centimeters into the brain of an adult will reach much deeper into the brains of children because their skulls are thinner and their brains contain more absorptive fluid（易吸收的液体）. No studies have yet been completed on cell phone radiation and children, she says.
Henry Lai, a research professor in the bioengineering department at the University of Washington, began laboratory radiation studies in 1980 and found that rats exposed to radiation had damaged DNA in their brains.
Ms. Davis recommends using wired headsets or the phone’s speaker. Children should text rather than call, she said, and pregnant women should keep phones away from the abdomen（腹部）.
【小题1】Why is the warning in the small print?

When looking back at the scary situation that happened to him on Saturday, Patrick Canney said he couldn’t still believe that it was true. It was a situation that could have ended with a tragedy for Patrick, his father and his sister. But it didn’t really happen thanks to Patrick.
That morning, Patrick’s father was driving down busy Interstate 95 in Peabody, Massachusetts. The car started going really slowly, which seized Patrick’s attention. And then he realized that something was wrong. At that point, Patrick found his father was having a seizure （中风）.
“It was really scary,” he said. “It was unlike anything that had ever really happened to me.” But Patrick didn’t act scared. He took control of the situation and got behind the wheel of the SUV. He turned the key off and pulled the car over to the breakdown lane （车道）. He then stopped the SUV, grabbed a cell phone out of his dad’s pocket and called 911 for help.
Patrick’s 9-year-old sister was in the SUV, too. He told his little sister not to worry about it. Then he opened the door and stood right next to the guard rail. Thanks to Patrick’s description of their location during the 911 call, Massachusetts State Police were able to locate the Canneys within minutes -- and get them all to safety.
“A 12-year-old boy’s clear thinking and decisive action actually saved this family from a tragedy,” said state police spokesman David. “That’s Patrick. He is cool and collected. I couldn’t imagine what would be the result if he were panicked （惊慌失措）.”
Patrick’s father was expected to recover fully from the seizure. And thanks to Patrick, all of the Canneys are still alive. “The word hero may be overused in our society,” said David. “But Patrick is surely that -- and then some.”
【小题1】As soon as he found his father had a seizure, Patrick ________.

Each cell in the human body contains about 25,000 to 35,000 genes, which carry information that determines your traits. Traits are characteristics you inherit from your parents; this means your parents pass some of their characteristics on to you through genes. For example, if both of your parents have green eyes, you might inherit the trait of green eyes from them. Or if your mom has freckles, you might inherit that trait and wind up with a freckled face. And genes aren’t just in humans — all animals and plants have genes, too.
Genes hang out all lined up on thread-like things called chromosomes. Chromosomes come in pairs, and there are hundreds, sometimes thousands of genes in one chromosome. The chromosomes and genes are made of DNA, which is short for deoxyribonucleic acid.
Chromosomes are found inside cells, the very small units that make up all living things. A cell is so tiny that you can only see it through the lens of a strong microscope, and there are billions of cells in your body. Most cells have one nucleus. The nucleus, which is sort of egg-shaped, is like the brain of the cell. It tells every part of the cell what to do. How does the nucleus know so much? It contains our chromosomes and genes. Tiny as it is, the nucleus has more information in it than the biggest dictionary you’ve ever seen.
71. What is the best title of this passage?
A. What Is a Gene?                    B. How Do Genes Work?
C. What Does A Gene Consist of?         D. How Do Nucleus Command Cells?
72. What does the underlined word “inherit” probably mean in the first paragraph?
A. carry          B. send        C. obtain           D. pass
73. Which of the following is NOT true according to the passage?
A. The parents pass some characteristics on to their children.
B. All living things receive traits from the old generations.
C. One’s green eyes might be passed on from the parents.
D.A mother’s freckled face might affect her young’s face.
74. From the passage we can know that______________.
A. genes can decide all your characteristics from parents.
B. genes exist inside cells that make up all living things.
C. genes tells every part of the cell what to do .
D. Chromosomes come in pairs containing genes.
75. From the passage we can conclude that ___________.
A. not all cells have one nucleus inside .
B. not all living things are made up of cells.
C. genes aren’t in humans but in animals and plants.
D. DNA is made of chromosomes and genes.