阅读理解

　　Men have traveled ever since they first appeared on the earth.

　　Long ago, they did not travel for pleasure but to find new places where their cattle could feed, or to keep away from their enemies, or to find more favourable climate(气候). They traveled on foot. Their journey were long, tiring, and often dangerous. They protected themselves with simple weapons, such as wooden sticks or stone clubs, and by lighting fires at night and, above all, by keeping together.

　　Very soon they discovered easier ways of traveling. They rode on the backs of their tame animals; they made boats out of tree trunks so as to travel across water.

　　Later they travelled, not for necessity, but for the job and excitement of seeing and experience new things. This is still the main reason why we travel today.

　　Travelling, of course, has now become a highly organized business. There are cars and splendid roads, express trains, huge ships and jet planes, all of which make travelling comfortable and safe.

1．It was ________ for men to travel in times long past.

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2．Which of the following most probably made men's journeys dangerous many, many years ago?

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A．They had to climb many mountains and cross many rivers.

B．They had to drive their enemies away from their new places.

C．There were no cars, no roads, no trains and no ships.

D．There were many wild animals on their way to new places.

3．It is learned from the passage that travelling exactly means ________.

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A．moving from place to place for living

B．wandering around for pleasure

C．going from one place to another or to several places

D．an organized club, which helps people make a journey to other places.

4．For what do most people travel today?

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A．They travel for pleasure.

B．They are eager to do business in some other places.

C．They are trying to discover some new things.

D．They want to experience feelings of an exciting riding or flight.

　　Long ago, dogs and horses were tamed to become man's helpers on land． Today some people believe that dolphins may become man's helpers in the sea．

　　Proof that a dolphin can be trained to assist man appeared in 1965． The U．S． Navy used the services of a seven-foot dolphin, Tuffy．

　　Tuffy worked with divers at the Navy's Man-in-the-Sea station off the coast of California． He acted as messenger to a ten-man team whose underwater home was Sealab II, 205 feet deep． Wearing a plastic harness, Tuffy carried letters in a waterproof tube． He also carried tools for the undersea workers． Tuffy learned to answer calls for help． Pretending to be lost, an aquanaut would sound a buzzer． Another aquanaut would fasten one end of a line to Tuffy's harness ．Tuffy would speed to the rescue．

　　More and more, it seems likely that old tales of dolphins' willingness to help man are closer to truth than to fiction．

1．The land animals dolphins are compared to are______．

A．oxen and horses　　 B．dogs and cats

C．dogs and horses　　 D．None of the above

2．The name of the trained dolphin was_______．

A． Toughy B． Tuffy C． Tufty D．None of the above

3．The services of the dolphin were used by the_______．

A．Government of California　　　　B． U．S． Army

C． U．S． Navy D． Scripps Institution of Oceanography

4．The article does not say that______．

A．the station was named Sealab II　　 B． the station's depth was 205 feet

C．ten men were in the underwater team D． the men spent fifteen days at the station

5．For all his chores, the dolphin______．

A．wore a plastic harness　　B．carried a waterproof tube

C．carried a line D．carried tools

6．The signal for the dolphin's rescue chore was a______．

A． shout B． bell　　 C． buzzer D． whistle

7．The purpose of the line the dolphin took was to______．

A．save the aquanaut from drowning　　 B．lead the aquanaut back to the others

C．help the aquanaut to guide the dolphin D．carry a light to the aquanaut

8．The author suggests that this modern example makes old tales about dolphins seem______．

A．more truth than fiction　　 B． more fiction than truth

C．half truth and half fiction　　D． entirely fiction