It’s easy to see how the sawfish got its name. These frightful creatures can grow to be more than 6 meters long. Their bodies are flat and winged, like underwater airplanes. And their noses are shaped like chainsaws.
Sawfish are food hunters of the sea. When a sawfish is hungry, it waves its sharp-toothed snout（口鼻部）through a group of fish. Then, it lifts its nose and uses its mouth to draw the injured victims.
Hardy（适应力强的）population of sawfish thrived in warm waters along coastlines around the world for thousands of years. Over the past 200 years, however, human actions have severely endangered sawfish. Threats include fishing nets that trap the huge animals, often by mistake.
Some people collect sawfish’s snouts as prizes: One snout recently sold for nearly $ 1,600 online. In some Asian cultures, the toothy snouts are used in ceremonies to drive evil and disease away. And sawfish are also delicious. A growing demand in Asia for the fish’s fins for a pricey soup has contributed to the fish’s loves. Compared with other fish, sawfish give birth late in life and at slow rates, which makes it hard for them to recover from overfishing.
New efforts now aim to restore sawfish population. Beginning next month, an international agreement will provide protection for all seven of the world’s sawfish species. Scientists are hoping that it’s not too late to save the sawfish.
Until 1998, “this fish had never been formally studied in the United States,” says Tonya Wiley of the Mote Marine Laboratory in Sarasota, Fla. “We didn’t know such basic things as where they live, what habitat they use, how often they breed, how many young they have — even what age sawfish are when they begin breeding.”
Through historical studies and field research, scientists have become aware of how much the fish’s numbers have decreased. Today, there may be 90 percent fewer sawfish than there used to be. Wiley estimates that only 3,000 to 6,000 sawfish remain in US waters.
Sawfish

A man once said how useless it was to put advertisements in the newspapers. "Last week," said he, "my umbrella was stolen from a London church. As it was a present, I spent twice its worth in advertising, but didn't get it back."

"How did you write your advertisement?" asked one of the listeners, a merchant.

"Here it is," said the man, taking out of his pocket a slip（纸条） cut from a newspaper. The other man took it and read, "Lost from the City Church last Sunday evening, a black silk umbrella. The gentleman who finds it will receive ten shillings（先令） on leaving it at No.10 Broad Street."

　　"Now," said the merchant, "I often advertise, and find that it pays me well. But the way in which an advertisement is expressed is of extreme importance. Let us try for your umbrella again, and if it fails, I'll buy you a new one."

　　The merchant then took a slip of paper out of his pocket and wrote: "If the man who was seen to take an umbrella from the City Church last Sunday evening doesn't wish to get into trouble, he will return the umbrella to No. 10 Broad Street. He is well known."

　　This appeared in the paper, and on the following morning, the man was astonished when he opened the front door. In the doorway lay at least twelve umbrellas of all sizes and colours that had been thrown in, and his own was among the number. Many of them had notes fastened（系牢） to them saying that they had been taken by mistake, and begging the loser not to say anything about the matter.

66. who would receive ten shillings according to the first advertisement ?

A. Anyone who found the thief

B. Anyone who gave a message to the loser of the umbrella

C. Anyone who left the umbrella in the City Church                         

D. Anyone who left the umbrella at No. 10 Broad Street

67.What was the result of the first advertisement __________?

A. the man got his umbrella back        B. the man wasted some money advertising

C. nobody found the missing umbrella    D. the umbrella was found somewhere near the church

68.The businessman suggested that the man should______.

A. buy a new umbrella      B. go on looking for his umbrella

C. report to the police       D. write another advertisement

69. What did the businessman mean by saying “if it fails, I will buy you a new one.?” _________.

A. he was quite sure of his success         B. he was not sure if he could get the umbrella back     

C. he did not know what to do            D. he was rich enough to afford a new umbrella

70 The writer of this story mainly wants to tell us __________.

A. a useless advertisement               B. how the man lost and found his umbrella

C. how to make a helpful advertisement.    D. what the businessman did for the umbrella owner

Columbus’s discovery of the “New World” took place _______.

A．on purpose        B．by accident        C．by design          D．by mistake

A man once said how useless it was to put advertisements in the newspapers. "Last week," said he, "my umbrella was stolen from a London church. As it was a present, 1 spent twice its worth in advertising, but didn't get it back."

   "How did you write your advertisement?" asked one of the listeners, a merchant.

   "Here it is," said the man, taking out of his pocket a slip cut from a newspaper. The other man took it and read, "Lost from the City Church last Sunday evening a black silk umbrella. The gentleman who finds it will receive ten shillings on leaving it at No l0 Broad Street."

   "Now," said the merchant, "I often advertise, and find that it pays me well. But the way in which an advertisement is expressed is of extreme importance. Let us try your umbrella again, and if it fails, I will buy you a new one."

    The merchant then took a slip of paper out of his pocket and wrote: "If the man who was seen to take an umbrella from the City Church last Sunday evening doesn't wish to get into trouble, he will return the umbrella to No. 10 Broad Street. He is well-known."

This appeared in the paper, and on the following morning, the man was astonished when he opened the front door. In the doorway lay at least twelve umbrellas of all sizes and colors that had been thrown in and his own was among them. Many of them had notes fastened to them saying that they had been taken by mistake, and begging the loser not to say anything about the matter.

This is a story about_______.

   A. how a man lost and found his umbrella   

B. how to make an effective advertisement

   C. how to find lost things                    

D. how to put an advertisement in the newspaper

"If it fails, I will buy you a new one "suggested that______.

   A. he was rich enough to afford an umbrella          B. he was quite sure of his success

C. he was not sure he would get the umbrella back            D. he was ready to help others

The result of the first advertisement was that______.

   A. the man got his umbrella back    B. the man wasted some money advertising

   C. the man found his umbrella D. someone found his umbrella

According to the first advertisement, anyone who_____ would receive ten shillings.

   A. left the umbrella in the City Church   B. found the umbrella at No. I 0 Broad Street

   C. gave the message to the man          D. left the umbrella at No. 10 Broad Street