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¡¡¡¡9 A young man is being hailed a hero tonight after rescuing two children.

¡¡¡¡A reported B proved C praised D caught

¡¡¡¡10 I wanted to ask her out but was scared that she might refuse.

¡¡¡¡A anxious B sure C sad D afraid

¡¡¡¡11 At that time, we did not fully grasp the significance of what had happened.

¡¡¡¡A give B attach C lose D understand

¡¡¡¡12 Anderson left the table, remarking that he had some work to do.

¡¡¡¡A doubting  Bsaying  C thinking D knowing

¡¡¡¡13 He asserted that nuclear power was a safe and non-polluting energy source.

¡¡¡¡A maintained B recommended C considered D acknowledged

¡¡¡¡14 The study also notes a steady decline in the number of college students taking science courses.

¡¡¡¡A relative B general C continuous D sharp

¡¡¡¡15 She always finds fault with everything.

¡¡¡¡A criticizes B simplifies C evaluates D examines

¡¡¡¡µÚ2²¿·Ö£ºÔĶÁÅжÏ(µÚ16¡«22Ì⣬ÿÌâ1·Ö£¬¹²7·Ö)

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¡¡¡¡Earth Rocks On

¡¡¡¡Most of the time, the ground feels solid beneath our feet. That's comforting. But it's also misleading because there's actually a lot going on underground. Masses of land (called plates) slip, slide, and bump against each other, slowly changing the shape of continents and oceans over millions and billions of years.

¡¡¡¡Scientists know that Earth formed about 4.5 billion years ago. They also know that our planet was hot at first. As it cooled, its outermost layer, called the crust, eventually formed moving plates. Exactly when this shift happened, however, is an open question.

¡¡¡¡Now, an international group of researchers has an answer. They've found new evidence suggesting that Earth's crust (µØ¿Ç) started shifting at least 3.8 billion years ago. The new estimate is 1.3 billion years earlier than previous ones.

¡¡¡¡Not long before 3.8 billion years ago, lots of asteroids (СÐÐÐÇ) were pummeling Earth, keeping its crust in a hot, molten state. After the hard crust formed, much of it sank at various times into the planet's hot insides. There, it melted before returning to the surface as lava.

¡¡¡¡In some places, however, the crust never sank. One of the oldest such places is in Greenland, in an area called the Isua supracrustal(ÉϵؿÇ) belt. The rocky crust there is between 3.7 and 3.8 billion years old. The belt was once part of the seafloor, but now it is exposed to air.

¡¡¡¡The researchers recently look at the Isua supracrustal belt. They noticed long, parallel cracks in the rock that have been filled in with a type of volcanic rock.

¡¡¡¡To explain this structure, the scientists propose that tension in the crust caused the seafloor to crack open long ago. Hot, liquid rock, called magma(ÑÒ½¬), flowed up slowly from deep inside Earth to fill the cracks. Finally, the area cooled, forming what we see today.

¡¡¡¡That explanation, plus chemical clues inside the rock, suggests that the Isua supracrustal belt was once part of a plate under the ocean, beginning around 3.8 billion years ago.

¡¡¡¡16 The ground beneath our feet is indeed still.

¡¡¡¡A Right B Wrong C Not mentioned

¡¡¡¡17 The shape of lands and oceans are slowly changed with the movements of plates.

¡¡¡¡A Right B Wrong C Not mentioned

¡¡¡¡18 Earth cooled down shortly after it was formed.

¡¡¡¡A Right B Wrong C Not mentioned

¡¡¡¡19 Scientists once estimated that Earth's crust started shifting three billion years ago.

¡¡¡¡A Right B Wrong C Not mentioned

¡¡¡¡20.It took a long time for the melted crust to become hard.

¡¡¡¡A Right B Wrong C Not mentioned

¡¡¡¡21.The formation of the Isua supracrustal belt is thought to have started about 3.8 billion years ago.

¡¡¡¡A Right B Wrong C Not mentioned

¡¡¡¡22. The lsua supracrustal belt is now a popular holiday resort.

¡¡¡¡A Right B Wrong C Not mentioned

¡¡¡¡µÚ3²¿·Ö£º¸ÅÀ¨´óÒâÓëÍê³É¾ä×Ó(µÚ23¡«30Ì⣬ÿÌâ1·Ö£¬¹²8·Ö)

¡¡¡¡ÏÂÃæµÄ¶ÌÎĺóÓÐ2Ïî²âÊÔÈÎÎñ£º(1)µÚ23¡«26ÌâÒªÇó´ÓËù¸øµÄ6¸öÑ¡ÏîÖÐΪµÚ2-5¶Îÿ¶ÎÑ¡Ôñ1¸ö×î¼Ñ±êÌ⣻(2)µÚ27¡«30ÌâÒªÇó´ÓËù¸øµÄ6¸öÑ¡ÏîÖÐΪÿ¸ö¾ä×ÓÈ·¶¨1¸ö×î¼ÑÑ¡Ïî¡£

¡¡¡¡The IPad

¡¡¡¡1 The IPad is a tablet computer (ƽ°åµçÄÔ) designed and developed by Apple. It is particularly marketed as a platform for audio and visual media such as books, periodicals (ÆÚ¿¯), movies, music, and games, as well as web content. At about 1.5 pounds (680 grams), its size and weight are between those of most contemporary smartphones and laptop computers. Apple released the IPad in April 2010, and sold 3 million of the devices in 80 days.

¡¡¡¡2 The IPad runs the same operating system as IPod Touch and IPhone. It can run its own applications as well as ones developed for IPhone. Without modification, it will only run programs approved by Apple and distributed via its online store.

¡¡¡¡3 Like IPhone and iPod Touch, the IPad is controlled by a multitouch display-a break from most previous tablet computers, which uses a pressure-triggered stylus (´¥¿Ø±Ê). The IPad uses a Wi-Fi data connection to browse (ä¯ÀÀ) the Internet, load and stream media, and install software. Some models also have a 3G wireless data connection which can connect to GSM 3G data networks. The devices is managed and synchronized (ͬ²½) by ITunes on a personal computer via USB cable.

¡¡¡¡4 An IPad has different features and applications one can use to execute different and interesting things. There are lots of IPad applications that the owner can use to enhance the way they communicate. Some of these are how to use social networking sites and other online options. One of the most common uses is for e-mail services. IPand applications like Markdown Mail allow the adoption of specific and particular options. They enable the owner to personalize their email accounts.

¡¡¡¡5 While the IPad is mostly used by consumers it also has been taken up by business users. Some companies are adopting IPads in their business offices by distributing or making available IPads to employees. Examples of uses in the workplace include lawyers responding to clients, medical professionals accessing health records during patient exams, and managers approving employee requests. A survey by Frost & Sullivan shows that IPad usage in workplaces is linked to the goals of increased employees productivity, reduced paperwork, and increased revenue.

¡¡¡¡23¡¢ Paragraph 2

¡¡¡¡24¡¢ Paragraph 3

¡¡¡¡25¡¢ Paragraph 4

¡¡¡¡26¡¢ Paragraph 5

¡¡¡¡A  Business usage

¡¡¡¡B Differences from IPhone

¡¡¡¡C Operating system

¡¡¡¡D Online stores

¡¡¡¡E Features and applications

¡¡¡¡F Display and data connection

¡¡¡¡27 In April 2010 the IPad developed by Apple was .

¡¡¡¡28 The IPad will only run programs approved by Apple if not .

¡¡¡¡29 IPad applications enable the owner's email accounts to be .

¡¡¡¡30 IPad usage in offices enables employee productivity to be .

¡¡¡¡A browsed

¡¡¡¡B increased

¡¡¡¡C released

¡¡¡¡D modified

¡¡¡¡E distributed

¡¡¡¡F personalized

¡¡¡¡µÚ4²¿·Ö£ºÔĶÁÀí½â£¨µÚ31¡«45Ì⣬ÿÌâ3·Ö£¬¹²45·Ö£©

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¡¡¡¡µÚһƪ Cell Phones: Hang Up or Keep Talking?

¡¡¡¡Millions of people are using cell phones today. In many places it is actually considered unusual not to use one. In many countries, cell phones are very popular with young people. They find that the phones are more than a means of communication—having a mobile phone shows that they are cool and connected.

¡¡¡¡The explosions around the world in mobile phone use make some health professional worried. Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones. In England, there has been a serious debate about this issue. Mobile phone companies are worried about the negative publicity of such ideas. They say that there is no proof that mobile phones are bad for your health.

¡¡¡¡On the other hand, why do some medical studies show changes in the brain cells of some people who use mobile phones? Signs of change in the issues of the brain and head can be detected with modern scanning (ɨÃè) equipment. In one case, a traveling salesman had to retire at a young age because of serious memory loss. He couldn't remember even simple tasks. He would often forget the name of his own son. This man used to talk on his mobile phone for about six hours a day, every day of his working week, for a couple of years. His family doctor blamed his mobile phone use, but his employer's doctor didn't agree.

¡¡¡¡What is it that makes mobile phones potentially harmful? The answer is radiation. High-tech machines can detect very small amounts of radiation from mobile phones. Mobile phone companies agree that there is some radiation, but they say the amount is too small to worry about.

¡¡¡¡As the discussion about their safety continues, it appears that it's best to use mobile phones less often. Use your regular phone if you want to talk for a long time. Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient, especially in emergencies. In the future, mobile phones may have a warning label that says they are bad for your health. So for now, it's wise not to use your mobile phone too often

¡¡¡¡31 People buy cell phones for the following reasons EXCEPT that

¡¡¡¡A they're popular

¡¡¡¡B they're cheap

¡¡¡¡C they're useful

¡¡¡¡D they're convenient

¡¡¡¡32 The world "detected" in paragraph 3 could be best replaced by

¡¡¡¡A cured

¡¡¡¡B removed

¡¡¡¡C discovered

¡¡¡¡D caused

¡¡¡¡33 The salesman retired young because

¡¡¡¡A he disliked using mobile phones

¡¡¡¡B he was tired of talking on his mobile phone

¡¡¡¡C he couldn't remember simple tasks

¡¡¡¡D his employer's doctor persuaded him to

¡¡¡¡34 On the safety issue of mobile phones, the manufacturing companies

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