What doomed the Titanic is well known, at least in outline. On a moonless night of April 15, 1912, the ship hit an iceberg in the North Atlantic ,with 1,500 lives lost.

A century later many people presented new theories to explain the real reason for the disaster. Now two new studies argue that rare states of nature played major roles in the disaster.

The first says Earth’s nearness to the Moon and the Sun — a proximity not matched in more than 1,000 years — resulted in record tides that help explain why the Titanic met with so much ice, including the fatal iceberg.

Recently, a team of researchers found an apparent explanation in the heavens. They discovered that Earth had come unusually close to the Sun and Moon that winter, enhancing their gravitational pulls on the ocean and producing record tides. The rare orbits took place between December 1911 and February 1912 — about two months before the disaster came about. The researchers suggest that the high tides refloated masses of icebergs traditionally stuck along the coastlines of Labrador and Newfoundland and sent them adrift into the North Atlantic shipping lanes.

And a second, put forward by a Titanic historian from Britain, contends that the icy waters created ideal conditions for an unusual type of mirage(海市蜃楼) that hid icebergs from lookouts whose duty was to watch carefully for  danger ahead and confused a nearby ship as to the liner’s identity, delaying rescue efforts for hours.

Most people know mirages as natural phenomena caused when hot air near the Earth’s surface bends light rays upward. In a desert, the effect prompts lost travelers to mistake patches of blue sky for pools of water. But another kind of mirage occurs when cold air bends light rays downward. In that case, observers can see objects and settings far over the horizon. The images often undergo quick distortions — not unlike the wavy reflections in a funhouse mirror.

Now, scholars of the Titanic are debating these new theories. Some have different opinions on it. Over all, though, many experts are applauding the fresh perspectives.  (words:353)

1.The underlined word "It" in the title probably refers to _______.

A．the Titanic         B．the record tide     C．the cause of the disaster   D．an unusual mirage

2.According to Theory First, what was the right chain of causes leading to the Titanic’s disaster?

① record tides’ forming and icebergs’ being refloated

② icebergs’ being drifted into the North Atlantic shipping lanes

③the Earth’s strange closing to the Sun and the Moon

④increasing of the gravitational force on the ocean

A．①→②→③→④    B．③→④→①→②    C．④→③→②→①    D．②→③→④→①

3.According to Theory Second, the disaster happened to the Titanic mainly because______.

A．the freezing weather made the watcher not be able to watch clear

B．the mirage on the sea attracted the watcher and made him forget his work

C．the high tides drove the icebergs float so fast that the watcher didn’t respond to them

D．the mirage made the watcher not find icebergs and a nearby ship delay rescuing

4.What is the chief function of the sixth paragraph?

A．to infer the possibility of the mirage appearing

B．to explain to the readers the ways of the mirage forming

C．to summarize the various kinds of the mirage

D．to analyze the conditions of the mirage arising

5.This passage is organized generally in the pattern of________.

A．comparison and contrast                  B．time and events

C．conclusion and proof                    D．definition and classification（分类)）

Explorer Robert Ballard searched the sunken ship---the Titanic for more than 20 years and also, with his cameras, he _____ the hole along the side of the ship which had caused it to fill with water and sink.

A. could find                                                             B. managed finding       

C. succeeded to find                                              D. was able to find

In James Cameron’s fantasy films, such as Avatar and The Abyss, the unexplored is decorated in color and filled with alien danger. But on his dive to the deepest place on Earth, which took place on a Sunday last month, reality proved far different: white, deserted, and dull.
“I felt like I literally had gone to another planet and come back,” Cameron said after returning from the cold, dark place in the western Pacific Ocean, nearly 7 miles (11km) below the surface. “It was a very fantastic day.” Cameron is the first person to explore the deepest valley in the ocean since two men made a 20-minute trip there in 1960.
He spent about three hours gliding through the icy darkness, brightened only by lights on the one-man sub(潜水艇). This deepest section of the Mariana Trench is so untouched that at first it appeared dull. But there’s something strangely interesting about the first pieces of video that Cameron shot — a sense of aloneness.
“It’s really the sense of isolation, realizing how tiny you are down in this big, black and unexplored place,” the Titanic director said. The wordless minute-long video, released by sponsor National Geographic, shows Cameron’s sub gliding across what he calls “the very soft, almost gelatinous(胶状的) flat plain.”
To Cameron, the main thing was to appreciate being there. “There had to be a moment where I just stopped, and took it in, and said, ‘This is where I am; I’m at the bottom of the ocean, the deepest place on Earth. What does that mean?’” Cameron told reporters during a conference call. The trip was only about half as long as planned because Cameron’s battery ran low. He said he would return and film it in 3D for later viewing.
“I see this as the beginning,” Cameron said. “It’s not a one-time deal and then moving on. This is the beginning of opening up this new frontier.”
【小题1】Why did Cameron dive to the deepest place on Earth?

Sailing Through History
A group of 1,309 passengers boarded the MS Balmoral on Sunday, in Southampton, England, on a voyage to retrace the path of the Titanic. The Titanic was the biggest ship in the world when it sailed on its ill-fated maiden voyage in 1912. Of the 2,227 passengers and crew aboard, more than 1,500 died. The ship, which was headed to New York City, carried the rich and famous on its first voyage. It also carried immigrants, who were seeking a better life in America.
Relatives of people who sailed on the Titanic, historians, authors and people fascinated by the story of the unsinkable ship, are on the Balmoral. They want to remember the doomed ship and those who died on her first and last voyage. The historic liner had set sail on April 10, 1912, from Southampton. Late at night on April 14, she hit an iceberg. In the early morning hours of April 15, the Titanic sank.
The Balmoral is following Titanic’s original route from Southampton. First, the modern-day cruise liner docked in the port of Cherbourg, France, where the Titanic had picked up more passengers. On Monday afternoon, the Balmoral stops in Cobh, Ireland, the Titanic’s last port of call before sailing to New York.
Balmoral will then cruise the North Atlantic Ocean to the location where Titanic hit an iceberg that ripped the ship’s hull(外壳). On Sunday, April 15, at 2:20 a.m.—the time the Titanic went down—passengers and crew will hold a memorial service. The next two days will be spent in Halifax, Canada, where many victims of the sinking are buried. Then, the Balmoral will reach its final destination in New York City, where Titanic was supposed to dock—but never did.
Until today, several teams of divers have explored the site. They have recovered some items such as dishes and silverware and put them on public display. And more trips are planned to the wreckage in the future. The Titanic and its passengers and crew have been remembered in books, movies and TV programs. But there’s a much more important contribution that Titanic gave us. After she sank, lawmakers and shipbuilders made ships safer. It took a terrible tragedy to make ship travel safer for all.
【小题1】How many passengers in Titanic survived at last?

    He was the baby with no name. Found and taken from the north Atlantic 6 days after the sinking of the Titanic in 1912, his tiny body so moved the salvage (救援) workers that they called him “our baby.” In their home port of Halifax, Nova Scotia, people collected money for a headstone in front of the baby's grave (墓), carved with the words: “To the memory of an unknown child.” He has rested there ever since.

    But history has a way of uncovering its secrets. On Nov. 5, this year, three members of a family from Finland arrived at Halifax and laid fresh flowers at the grave. “This is our baby,” says Magda Schleifer, 68, a banker. She grew up hearing stories about a great-aunt named Maria Panula,42, who had sailed on the Titanic for America to be reunited with her husband. According to the information Mrs. Schleifer had gathered, Panula gave up her seat on a lifeboat to search for her five children -- including a 13-month-old boy named Eino from whom she had become separated during the final minutes of the crossing. "We thought they were all lost in the sea," says Schleifer.

    Now, using teeth and bone pieces taken from the baby's grave, scientists have compared the

DNA from the Unknown Child with those collected from members of five families who lost relatives on the Titanic and never recovered the bodies. The result of the test points only to one possible person: young Eino. Now, the family sees: no need for a new grave. "He belongs to the people of Halifax," says Schleifer. "They've taken care of him for 90 years."

                                            Adapted from People, November 25, 2002

56. The baby travelled on the Titanic with his___________.

   A. mother             B. parents            C. aunt                   D. relatives

57. What is probably the boy's last name?

   A. Schleiferi          B. Eino.            C. Magda.               D. Panula.

58. Some members of the family went to Halifax and put flowers at the child's grave on Nov. 5__.

      A.  1912             B. 1954              C. 2002                 D. 2004

59. This text is mainly about  how______________.

   A. the unknown baby's body was taken from the north Atlantic

   B. the unknown baby was buried in Halifax, Nova Scotia

   C. people found out who the unknown baby was

   D. people took care of the unknown baby for 90 years