Big ocean(海洋)fish have almost disappeared from the world since the start of business fishing in the 1950’s．The scientists found that the number of large fish has dropped by 90 percent in the past fifty years．The study took ten years．The researchers collected records from fishing business and governments around the world．The magazine Nature published the findings．

    The scientists say the common way called longline fishing is especially harmful to large fish．This way includes many fishing lines that are connected to one boat．If these lines are joined together，they can reach one hundred kilometers．They hold thousands of sharp metal hooks to catch fish．Longline fishing is especially common in the Japanese fishing industry．Records show that Japanese boats used to catch about ten fish for every hundred hooks．The study says longline fishing boats now might catch one fish per hundred hooks．

    The scientists say business fishing can destroy groups of fish much faster than in the past．The study suggests that large fish can disappear almost completely from new fishing areas within ten to fifteen years．Ocean life system could be destroyed．

    It’s not the only worry that the number of large fish is becoming smaller and smaller．What’s worse．they are smaller in size than their ancestors(祖先)．

1.The magazine Nature published the findings．The word“published”here means________．

    A．發(fā)表          B．發(fā)現(xiàn)         C．研究        D．調(diào)查

2.The number of big ocean fish has become smaller because_________．

    A．the oceans are polluted

    B．the ways of fishing go into practice

    C．the scientists pay little attention to them

    D．Japanese fishing boats catch one fish per hundred hooks

3.What do you think of the business fishing?

    A．It should be encouraged．

    B．It can balance ocean life system．

    C．It needn’t be cared about．

    D．It may bring harm to ocean fish．

4.Which of the following can be the best title for the passage?

    A．Longline fishing

    B．Japanese fishing industry

    C．Modem fishing ways

D．Worrying situation of big ocean fish

 

【答案】

 

1.A

2.B

3.D

4.D

【解析】略

 

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What’s worse, they are smaller in size than their ancestors(祖先).

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