阅读理解。
Big ocean fish have almost been endangered since the start of business fishing in the 1950s. 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 businesses and governments around the world. The magazine
Nature published (发表) 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 (连接) to one boat. If these lines are joined together, they can
reach one hundred kilometers. They hold thousands of sharp metal hooks (钩) to catch fish. Longline fishing
is especially common in the Japanese fishing industry. Records showed that Japanese boats used to catch about
ten fish for every one 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. 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).
根据短文内容完成表格，每空一词。
What is happening to ocean fish?

Items (项目)	Situations	Results
1._____ _____of ocean fish	The number of ocean fish has dropped by 90% in the past fifty years.	The number of fish 2._____ _____. Smaller and smaller.
The size of ocean fish	Big ocean fish have almost been 3._____ since the start of business fishing in the 1950s.	The size of ocean fish is not 4._____ _____ as that in the past.
The way of fishing (捕鱼)	Long-line fishing can be especially had to 5._____ _____.	Business fishing can destroy fish groups a lot faster than in the past.

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