Lake Titicaca, in the Andes mountain chain in South America, is the highest lake in the world． And for hundreds of years the boats called balsas were the highest boats in the world．

　　The balsas are made by the Aymara Indians who fish in waters more than two miles (about 12,700 feet) above sea level． The Indians wrap totora reeds into cigar-shaped bundles and lash the bundles together． The air trapped between the reeds makes a newly made balsa almost unsinkable． The fisherman may stand near the narrower, higher end of this craft as he poles it along;he may sit in the small hollow amidships as he paddles． With a favorable wind, a reed mat fastened to upright poles near the bow, or front, acts as a sail．

　　Though steamboats now sail these high waters, the balsas still have one great merit． If they are damaged, materials for repairing or replacing them are right at hand．

1．Lake Titicaca is in the____________．

A．Himalayas of Asia　　 B．Rocky Mountains of North America

C．Alpine chain in Europe D．Andes of South America

2．The lake's height above sea level is__________．

A．ten thousand feet　　　　B．over two miles

C．thirteen thousand feet　　D．over three miles

3．The reed used by the Aymara Indians is the__________．

A． bamboo B． papyrus C． sugarcane D． totora

4．The bundles of reeds lashed together for the boat are_________．

A．cigar-shaped B．pencil-shaped C．plank-shaped D．None of the above

5．With air trapped between the reeds, the craft is likely to be_________．

A． light B． strong C．easy to pilot D．hard to manage

6．The craft may be propelled by use of________．

A． a pole B． a paddle C． the wind D． All of the above

7．The story suggests that materials for repairing a steamboat________．

A．a(chǎn)re easily obtained　　 B． have to be brought in from elsewhere

C．a(chǎn)re needed more frequently than for reed boats D． are transported by plane

8．A reed boat cannot be repaired when________．

A．a(chǎn) rock cuts into one bundle of reeds　　 B． the lashing around a bundle breaks

C．the bundles of reeds become water soaked D． the sail is torn

The man from the west stopped and drew back his arm. "You’re not Jimmy Wells," he said in a quick and angry way, "Twenty years is a long time, but not long enough to change a man’ nose from a Roman to pug." "It sometimes changes a good man into a bad one,” said the tall man, "you’ve been under arrest for ten minutes. Silky Bob. Chicago thinks you may have dropped over our way and phones us she wants to have a word with you. Going quietly, are you? That’s sensible. Now before we go to the station here’s a note I was asked to hand you. You may read it here at the window. It’s from Patrolman Wells.?" The man from the West opened the little piece of paper handed him. His hand was steady when he began to read, but it trembled a little by the time he finished. The note was rather short. Bob: I was at the right place on time. When you struck the match to light your cigar I saw it was the face wanted in Chicago. Somehow I couldn’t do it myself, so I went around and got a plain clothes man (便衣) to do the job.

52． The man from the West must have broken the law _____.

A. in Chicago                 B. in New York

C. in his hometown        D. somewhere else

53. The man from the West recognized the tall man not to be the one he had been waiting for because the tall man ____.

A. had a different accent from his

B. had a different nose from his friend’s

C. was his another old friend

D. said "Chicago wants to talk with you?"

54. The two men may have walked _____.

A. for ten minutes               B. arm in arm

C. face to face                    D. both A and B

55. We can suppose Jim _____.

A. was afraid of the man from the West

B. got another man to help him when necessary

C. had an appointment with Bob 20 years ago

The man from the west stopped and drew back his arm. “You’re not Jimmy Wells,” he said in a quick and angry way, “Twenty years is a long time, but not long enough to change a man’s nose from a Roman to pug.”“It sometimes changes a good man into a bad one,” said the tall man, “you’ve been under arrest for ten minutes. Silky Bob. Chicago thinks you may have dropped over our way and phones us she wants to have a word with you. Going quietly, are you? That’s sensible. Now before we go to the station, here’s a note I was asked to hand you. You may read it here at the window. It’s from Patrolman Wells.?”The man from the West opened the little piece of paper handed him. His hand was steady when he began to read, but it trembled a little by the time he finished. The note was rather short. Bob: I was at the right place on time. When you struck the match to light your cigar I saw it was the face wanted in Chicago. Somehow I couldn’t do it myself, so I went around and got a plain clothes man (便衣) to do the job.

The man from the West must have broken the law _____.

A. in Chicago    B. in New York    C. in his hometown    D. somewhere else

The man from the West recognized the tall man not to be the one he had been waiting for because the tall man ____.

A. had a different accent from his       B. had a different nose from his friend’s

C. was his another old friend           D. said "Chicago wants to talk with you.?"

The two men may have walked _____.

A. for ten minutes    B. arm in arm     C. face to face       D. both A and B

We can suppose Jim _____.

A. was afraid of the man from the West

B. got another man to help him when necessary

C. had an appointment with Bob 20 years ago

D. had something else to do and couldn’t come himself