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 | The great white sharks (鲨鱼) are famous (有名的). They may grow up to (最多能长到) 6.5 metres long and weigh 3 tons. They usually eat fish and sea lions. They also like to eat many other things. They use their noses to find food. They can swim 69 kilometres in one hour. |
 | The killer whales (虎鲸) are a very dangerous (危险的) whale. Their bodies are black and white. They are around 7-8 metres and about 9 tons (吨). They eat fish, sea birds and other sea animals. They can swim 55 kilometres an hour to chase (追赶) the food. |
 | The blue whales are the biggest animal in the world. They are around 30 metres long and about 200 tons. The blue whales live in the sea, but they are not fish. They move from one place (地点) to another and chase the group of fish. They can swim 50 kilometres in one hour. |
1．Which is the biggest animal in the world? ( )
| A．The blue whales. | B．The killer whales. | C．The great white sharks. |
| A．the blue whales | B．the killer whales | C．the great white sharks |
| A．slower | B．longer | C．shorter |
| A．Sea birds. | B．Fish. | C．Sea lions. |
| A．The blue whales live in the sea and they’re fish. |
| B．The killer whales can swim 69 metres an hour. |
| C．The great white sharks use their noses to find food. |
同类型试题
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
