Read the passage carefully, then choose the best answer for each question.
I’VE FOUND THE TITANIC!
As a boy, Robert Ballard liked to read about shipwrecks. He read a lot about the Titanic. "My lifelong dream was to find this great ship," he says.
On August 31, 1985, Ballard's dream came true. He found the wreck of the Titanic. The ship was in two main parts lying four kilometers (2.4 miles) under the sea. Using video cameras and an undersea robot, Ballard looked around the ship. He found many items that told the sad story of the Titanic's end. For example, he found a child's shoes, a reminder of the many deaths that happened that night in 1912.
In 1986, Ballard visited the Titanic again. This time, he reached the ship in a small submarine. A deep-sea robot—a "swimming eyeball"—took photos inside the ship. When other people saw the photos, they wanted to visit the ship, too.
When Ballard returned in 2004, he found the Titanic in very bad condition. Other explorers had taken away about 6,000 items, like clothes, dishes, and shoes. Some even took pieces of the ship. They think these things should be moved to a safer place, but Ballard doesn't agree.
Ballard believes that taking things from the Titanic is like robbing a grave.  Instead, he wants to put lights and cameras on and around the shipwreck. This way, people can see the great shipwreck and remember what happened to it. “As long as she needs protection,''  says Ballard, "the Titanic will always be part of my life."
What does “they” refer to?
A.Robert Ballard and his team
B.other visitors to the Titanic shipwreck
C.people from the Titanic who are still alive
D.pieces of the ship

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Read the passage carefully, then choose the best answer for each question.
TREASURE SHIP
On a beach along the Skeleton Coast, the sand is filled with diamonds. But in April 2008, workers found something very different: a piece of lost history—a shipwreck and its treasure.
The story began when a worker from the nearby diamond mines found a piece of metal on the beach. It was a piece of copper. Soon, they found more copper and many gold coins. The workers then found that these came from the remains of a large ship. The shipwreck was the real treasure.
Archeologists studied the shipwreck. They thought the ship probably came from Portugal about 500 years before. However, it was difficult to find information about it. In 1775, many maps and books about the ships of the time were lost in a fire in Lisbon. "That left a big hole in our history,” says Portuguese archeologist Alexandre Monteiro.
Finally, Monteiro found out that a group of ships left Lisbon for India in 1533. One of them, the Bom Jesus, carried 300 people and a large amount of treasure. The Portuguese sailors planned to use the treasure to buy expensive Indian spices. Archeologists now believe the wreck might be the Bom Jesus. This is because many of the gold coins found were Spanish. Monteiro found an old letter in the Spanish royal archives. The letter said that Spain gave Portugal money for the trip. Two thousand Spanish coins were put on the Bom Jesus. This could explain why so many Spanish coins were found in a Portuguese shipwreck.
So what happened to the ship? The Bom Jesus probably got lost in a storm. Then it smashed into rocks near the coast and sank. There were few human bones found, so the sailors were probably able to get off the ship. But even if they swam onto the beach, they would have found themselves in a strange, distant land. They had no way to get home. They might as well have been on Mars. To this day, no one knows what happened to them.
Which statement is a fact?
A.All the sailors were able to swim to land.
B.There were 2,000 Spanish coins on the Bom Jesus.
C.The ship got lost in a storm and smashed into rocks.
D.The ship came from Portugal about 500 years ago.

Read the passage carefully, then choose the best answer for each question.
AT THE SCENE OF A CRIME
Your phone rings. The police officer says someone broke into a store and took some expensive items. They need you right away. It is your job to study the whole scene for clues that will help catch the thief. You are a crime scene investgator, and the game is on.
Outside the store, you see a broken window, some glass on the street, shoeprints, and marks made by a vehicle's tires. You look at the shoeprints. They're large, so you're likely looking for a man. You photograph the shoe's pattern. This can tell you the type of shoe. You then measure the space between the shoeprints. You now know how long the man's steps were. This gives you an idea of how tall he was.
As you follow the shoeprints over to the tire marks, they get farther away from each other. They lead to the passenger's side of the vehicle. Now you know the man probably didn't work alone. You photograph the tire marks. They can help you find out what type of vehicle it was, and the direction it went in.
On the Case
The most important clues will come from a person's body. The person who broke in left a little of himself behind. In the store, you find some fingerprints. Using a computer, you can compare these prints against millions of others.
In the store, there is a lot more glass. Then you find something else—a hair. You keep this because you know hair contains a person's DNA.  You can compare this with other people's DNA, too. If you find a match for the fingerprint or the DNA, you will know who was in the store.
Will you find the thief? You now have a lot of information, so it's possible. For a crime scene investigator, it’s all in a day's work.
What are the most important clues that the investigator finds?
A.fingerprints and a hair
B.shoeprints and tire marks
C.video from the store’s camera
D.glass and fingerprints

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.
What do you do if your cell phone rings while you are with a group of people? If you are French, you will probably ignore the call. If you are English, you may walk away from the group to answer it. If you are Spanish, you are likely to answer it there in the middle of the group and invite everyone around you to join the conversation. As many travelers have noticed, there are considerable differences from one country to another in the way people use their cell phones. This has been confirmed by a recent study of cell phone use in three European cities-Madrid, London, and Paris.
According to Amparo Lasen, the Spanish sociologist who conducted the study, there were no real surprises for anyone who is familiar with the customs in these cities. Lasen interviewed people and observed their behavior in three different settings: a major train station, a commercial area, and a business district in each city. She found that Londoners use their cell phones the least in public. If they are with others, they prefer to let calls be answered by voice mail (a recorded message) and then they check for messages later. If the English do answer a call on the street, they seem to dislike talking with others around. They tend to move away from a crowded sidewalk and seek out a place where they cannot be heard, such as the far side of a subway entrance or even the edge of a street. They seem to feel that the danger of the traffic is preferable to the risk of having their conversation be overheard. This has led to a behavior that Laser) has called "clustering." At a busy time of day on the streets of London, you may find small crowds of cell phone users grouped together, each one talking into a cell phone. Even when it is raining-as it often is in London-people still prefer not to hold their conversations where others could hear. They talk under their umbrellas or in a doorway.
In Madrid, on the other hand, few people use voice mail because the Spanish dislike talking with machines rather than real voices. If there is no answer, they don't leave a message. They prefer to try again later or wait for a return call. And since the Spanish are not shy about answering their calls in public, the call may come sooner than it would in London or Paris. In fact, in Madrid it is common to hear loud and lively phone conversations on the street, accompanied by shouts, laughter and the waving of hands. In fact, sometimes it happens that a group of friends may be walking down the street together, each talking on their own phone, but smiling and nodding as though it were one large conversation that everyone could hear. Even when they are not using their phones, the Spanish often hold them in their hands as they walk down the steet or put them on the table at a restaurant, so they will not miss any incoming calls. In a movie theater, not only do cell phones occasionally ring, but people sometimes answer them and have brief conversations. In Paris, however, there are stricter rules about how and when to use cell phones. It is not considered polite to use a phone in a restaurant, for instance, though it might be acceptable in the more informal setting of a café. One special custom that has developed in cafés seems unique to Paris. Young women often place their cell phones on the table beside them to signal that they are expecting someone. When the friend arrives, the phone is put away. In fact, the French are generally very disapproving of phone use in public and are quick to express that disapproval, even to strangers.
What is the English's biggest concern when they talk on their mobile phone?
A.Other people may hear their talk. 
B.Traffic may put them in danger.
C.Their life may be in danger.
D.Bad weather may interrupt their talk.