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  The undersea world is very beautiful. Now more and more people want to dive(潜水)in the water to find the secret there. Scuba diving is a new sport today. It can take you into a wonderful undersea world.

  You will find many strange animals in the sea. Some are as large as a school bus. Many sea animals give out light in the dark and some have sharp teeth.

  During the day, there is enough light. Here, under the sea, everything is blue and green.

  When fish swim nearby, you can catch them with your hands. When you have bottles of air on your back, you can stay in deep water for a long time. However, you can't dive too deep. And you must be very careful when you dive in deep water.

  The deep sea is not an easy place to live in. It's cold, and it's dark, too. The deeper it is, the less sunlight there is. At about 3,000 feet, there is no light at all. It is very dark in the sea. Many fishes have no eyes. Some have big eyes. A few have eyes on one side.

  Besides(除了)the cold and the darkness, deep-sea animals face a third danger-other animals.

  Animals eat! They must find food to eat. Many animals eat plants. However, some animals eat meat. This means these sea animals have two big jobs. They need to find animals as food, and they have to try not to become other animals' meal.

  根据短文选择正确答案

(1) Why do people want to dive in the sea? Because ________.

[  ]

Athey want to catch fish

Bthey want to find the secrets of the undersea world

Cthe sea is deep

(2) In the daytime, when you dive in the sea, you ________.

[  ]

Acan see everything green and blue

Bcan't be in danger

Ccan catch nothing

(3) How many dangers will animals meet in the deep sea?

[  ]

AOne.

BTwo.

CThree.

(4) When you do scuba diving, you can ________.

[  ]

Astay in deep water for a long time

Bdive very, very deep

Clive in deep water easily

(5) Which of the following is WRONG?

[  ]

AAt the depth of 3,000 feet under the sea, all animals can find their way by seeing.

BAt the depth of 3,000 feet under the sea, many animals can find their way by hearing and feeling.

CThe deeper the sea is, the darker and colder it is.

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