It's reported that over 300 million people in China are suffering from near-sightedness. As more children have got eye trouble, their parents hope to cure　 48 　disease by medicine or equipment or by correcting the way children read and sit. 　 49 in fact the care given to one's eyes should start with the exercise on one's feet. Three methods on how to protect are 50　 follows:

Firstly, don't fasten your shoes too tightly. Try wearing loose shoes　 51　 walking bare-footed at home. When traveling, try wearing cloth shoes to make blood circulation (循环) easier.

　 52　 , walking on tiptoes(脚尖) will help improve one's eyesight and prevent near-sightedness. Figures show that few ballet performers are near-sighted.

Thirdly, rope skipping also does good　 53　 one's eyesight. When skipping the rope, one has to react quickly, 　 54 　 excites the brain and the eyes. 　 55　 foot exercises, it's good to pull one's ears. Pulling the ears 20 times is found to be an effective way to reduce the pressure on one's eyes.

　　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

    Water skiing is a sport with many social, economic and health benefits to society. It is unique in that it is a sport where able and disabled persons, and people as young as 5 years and as old as 80 years of age can participate alongside each other. It is a sport that involves more than one person, and is a wonderful family activity that gathers members together for a day of fun at a favorite waterway.

Anyone who has put on water skis can attest to its health benefits ― it is a sport that demands and develops strength, ability and endurance. The sport includes several disciplines(训练) including slalom, tricks, cable, jump, ski racing, knee-board, wake-board, and barefoot, with each of these practiced for either recreational or competitive enjoyment.

Safety Tips For Water-Skiers

Don' t take unnecessary risks while water-skiing. The following tips will help you safely enjoy this thrilling sport:

ALWAYS have an observer in the boat. This is a legal requirement in many states. The boat driver cannot watch the skier and operate the boat safely at the same time.

ALWAYS wear a Coast Guard approved Personal Flotation Device (PFD) designed for water skiing. Ski belts are NOT recommended. Your approved PFD will help keep you a float.

Never ski in rough water. High waves or a choppy sea will prevent the tow boat from maintaining a steady course and speed.

NEVER ski after dark. It is dangerous and illegal. Any boat traveling fast enough to tow a skier is traveling too fast to navigate safely at night.

NEVER water-ski while under the influence of alcohol or drugs. Such activity is extremely dangerous because of the impairment to your judgment and ability to respond. A recent study conducted with expert skiers who were purposely drunk indicated that even their ability to ski was dramatically reduced.

Use hand signals between the skier and observer. Agree before you start what each signal means so there is no confusion at a critical moment.

59．Who can accompany you to go water skiing?

       A．A pupil in a primary school.                   B．A person who is disabled.

       C．A family member.                                 D．All above.

60．Which is wrong according to the text?

       A．Water skiing helps build up one’s strength.

       B．The disciplines mentioned are only for competitions.

       C．Hand signals should be agreed on between skiers.

       D．Rough water makes the tow boat less steady.

61．Which of the following is against law while doing water skiing?

       A．An observer doesn’t watch the skier.             

       B．A skier doesn’t fasten his safe belt.

       C．Go skiing at midnight.                                                         

       D．To go skiing after drinking wine.

62．The propose of writing the article is to ______.

       A．warn people of danger of going skiing 

       B．tell how to enjoy water skiing properly and safely

       C．tell people, both young and old, to learn to go skiing

       D．tell people not go skiing after drinking too much wine