Ottersareanimalsthatlivenearandaroundwater.Therearemany...

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問題詳情：

Otters are animals that live near and around water. There are many different kinds of otters. Some live near rivers, and some in the sea. Otters live on every continent（大洲）except for Australia and Antarctica.

Otters are long and slim animals with four short legs. They usually stay on all four legs, but they can stand up as well. They are excellent swimmers and spend a lot of time in water，lively and energetic. Some kinds of otters live in groups, while others are almost always alone.

They have a thick fur coat that keeps them warm even in freezing(極冷的) water. Their fur is often brown at the top, and lighter on the bottom of the otter. They eat meat and hunt for fish and small animals, so they have sharp claws(利爪) and teeth to catch prey（獵物）.

Otters must eat a lot of meat to live, so they spend 3 to 5 hours per day fishing and hunting. They can die of hunger more quickly than most animals. They eat fish, crayfish, crabs and frogs. They will also eat any small animals and birds they can catch. Much of their food is found in water. They dive in rivers, lakes and streams until they can find an animal to eat. Once they catch it, they bring it to the top of the water. If the animal has a hard outer part, Otters can use a rock as a tool to break open it.

( ) 1. Otters are animals that stay .

A. in Australia and Antarctica B. mainly on the land

C. only in the sea D. near and around water

( ) 2. Why do otters have a thick fur coat?

A. To keep them warm in freezing water. B. To swim fast in the water.

C. To fight with their enemies. D. To play in water for a long time.

( ) 3. What kind of food do otters like to live mainly on?

A. Birds and insects. B. Freshwater and sea plants.

C. Fish, crayfish, crabs and frogs. D. Small animals on land.

( ) 4. Every day, an otter has to spend 3 to 5 hours .

A. swimming and playing B. fishing and hunting

C. cleaning its fur D. living together in a group