题目内容

The oceans of the world are s_________ because they contain 3.5% of salt.

salty

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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)．
【小题1】The magazine Nature published the findings．The word“published”here means________．
A．发表B．发现C．研究D．调查
【小题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
【小题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．
【小题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

As many as 10 of the 17 kinds of penguins（企鹅）may be in danger of disappearing. The number of penguins have decreased(减少) by 30% since 1987.
　　Penguins are black and white birds that live in the southern part of the world. They are common in South America，New Zealand，Australia and South Africa. Many live near cold waters. But some live near warm waters in Galapagos Islands. Penguins cannot fly，but they are fine swimmers. Penguins eat fish and krill(磷虾).
　　The warming of the earth is the decrease in penguin populations. The heating of the air has caused ocean waters to become warmer. Higher water temperatures have reduced the supply of fish and krill. Some years later these birds are completely unable to reproduce(繁殖).　 Besides，many adult penguins die of hunger.
　　Widespread(广泛的) fishing，exploration for oil and oil leaks(漏) also make penguins be in danger. Poisonous organisms(生物) in ocean water are another danger. Penguins also have their enemies，including wild dogs，sharks，seals and sea lions.
　　News about penguins is not all bad，however. Several years ago，oil leaking from a ship hurt 40% of the penguins in South Africa. The penguins became covered with oil. But thousands of people helped clean and treat the birds well. Then they returned the penguins to the wild.　 Now these South African penguins are reproducing in higher numbers than before the oil leaking.
【小题1】Penguins ___________.

A．can swim better than flyB．can be found near Oceania (大洋洲)
C．eat fish only冬腊月D．live only in cold waters.
【小题2】Which of the following is NOT the cause of penguin's decrease in numbers?
A．Oil searching.B．Widespread fishing.
C．Human's killing.D．Warming of the oceans.
【小题3】 Why are the penguins in South Africa reproducing in higher numbers than before the oil leaking?
A．Because people removed the ship.
B．Because people sent a lot of penguins to the wild.
C．Because people helped the penguins.
D．Because people treated the penguins well.

Water can be a liquid, a solid or a gas. When it is a solid, it can be as hard as stone. When it is a liquid, it can run through your fingers. When it is a gas, you may not see or feel it.
Water can change from a solid to a liquid or to a gas easily. This is why we always have fresh water. Now let us find out how it does. The heat of the sun turns liquid water into gas from the oceans, seas, rivers and lakes. The heat also turns liquid water into gas from the ground, the plants and the animals. Water in the gas rises and turns into clouds in the air.
When the clouds come near a mountain, they rise high. As the clouds rise, they get cooler. The higher they rise, the cooler they become. Then more and more water gas turn into water drops. In this way, the drops of water in the clouds get bigger and bigger. Then they fall to the earth as rain.
根据短文内容，选择正确答案
【小题1】What is the solid of water?

A．RainB．GasC．StoneD．Ice
【小题2】When the water is a _____, we may not see or feel it.
A．liquidB．soildC．gasD．snow
【小题3】The water in the oceans turns into clouds because _____ 
A．the windB．the heat of the sun
C．the mountainD．the earth
【小题4】According to the passage, it rains most over the_____     
A．seasB．oceansC．mountainsD．farms
【小题5】The higher you go up the mountain, _____you will feel.
A．the coolerB．the hotterC．the heavierD．the bigger

根据中文提示写出单词或词组，使句意完整、正确。
【小题1】Great changes have taken place in China in ______（最近的）years.
【小题2】—How many boys are there in your class?
—Thirty, about sixty_____(百分之)of the students in our class.
【小题3】 —The water in the river is dirty.
—Government has passed_____ (法律) against water pollution.
【小题4】He joined the______(军队) in 2000.
【小题5】“The greenhouse effect”causes the level of the oceans to_____ (上升).

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．发表          B．发现         C．研究        D．调查

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

 

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