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A．He will be too weak.B．He will be clever.C．He will be stupid.D．He will be crazy.
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It's unusual, if not unprecedented, for a newspaper to advise its readers to put their newspapers down. But in the case of readers who ride commuter trains, buses or Metro rail, that is indeed our advice. Put the newspaper down from time to time, look around, and if you see a package, gym bag or backpack that doesn't appear to belong to anyone, ask your fellow travelers whether it belongs to them.
That is the most important piece of advice that Metro has offered the public since the bomb blasts that destroyed commuter trains in Madrid last week. Other steps have been taken as well. Metro says, for example, that it has beefed up the presence of uniformed officers, some with bomb-detecting dogs and some with sensors that can detect radiological material. Less obvious, but equally important, are measures that have been in place for some time, including sensors that can detect nuclear and chemical material, along with plainclothes security officers and frequent contacts between Metro staff and the FBI.
Nevertheless, it's not practical to screen all passengers entering the Metro system or any other underground or commuter train system in the country. Nor is it realistic to assume that police officers and dogs will be visible in every station or on every train. For that reason, Metro's request—made over its public address system the past few days and repeated by its spokesmen—that its customers should remain vigilant is not to be taken lightly. Metro officials say, in Pact, that they'd prefer to have their time wasted occasionally than feel they could have prevented a tragedy and failed to do so. Customers should take their word for it.
The Madrid bombings should also serve as a reminder that civil defense throughout the city and the country is still taken far too lightly. Political leaders don't talk about it as much as they should, because they don't like to acknowledge that they cannot promise protection from attack. Many people are still not better prepared, mentally or otherwise, than they were three years ago, and many businesses still don't have an emergency plan. So once you've finished your newspaper, ask yourself some questions. Are there supplies in your house to last a couple of days？ Are there emergency telephone numbers pinned to your refrigerator？ Do you own a battery-powered radio, which could help you get information if you need it？ Small amount of effort made now could pay off down the road in the event of another terrorist tragedy.
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The article demonstrates what will happen in the Information Marketplace through the discoveries.
The Third Revolution in modem human history will come in 2020.
Section B
Directions: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A, B, C and D.
听力原文： Most people picture sharks as huge, powerful, frightening predators, ready at any moments to use their sharp teeth to attack careless swimmers without provocation. But, people may have some wrong ideas on the conception of sharks.
First, there are 350 species of shark, and not all of them are large. They range in size from the dwarf shark, which can be only 6 inches long and can be held in the palm of the hand, to the whale shark, which can be more than 55 feet long.
Second, the different species of shark vary tremendously in the number and type of teeth. A shark can have from one to seven sets of teeth at the same time, and some types of shark can have several hundred teeth in each jaw. It is true that the fierce and predatory species do possess extremely sharp and brutal teeth used to rip their prey apart: many other types of shark, however, have teeth more adapted to grabbing and holding than to cutting and slashing.
Finally, not all sharks are predatory animals ready to strike out at humans. In fact, only 12 of the 350 species of shark have been known to attack humans, and a shark needs to be provoked in order to attack. The types of shark that have the worst record with humans are the tiger shark, the bull shark, and the great white shark. However, for most species of shark, even some of the largest types, there are no known instances of attacks on humans.
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