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Birds live in trees. Squirrels live in trees. But do you know that some frogs live in trees, too? The tree frog is hard to find. This frog can change colors. On green leaves, it stays green. On a brown branch, it turns brown. Some tree frogs can change from green to gold or blue.
Tree frogs have legs and wide feet. They have sticky (黏性的) pads (肉趾) at the ends of their toes. These sticky toe pads keep (阻止) the tree frogs from falling.
Tree frogs have different colors and markings on their skin. Their eyes are different, too. Some have green eyes, some gray. Some frog's eyes are gold, and some are bright red.
The sounds they make in spring and summer are different, too. One frog makes sound like a dog barking. Another frog makes a loud noise like snore. There is even a frog that whistles!
1．Which animals live in trees? ( )| A．Cats | B．Dogs | C．Rabbits | D．Tree frogs |
| A．heads | B．hands | C．legs | D．toes |
| A．Because they live in trees. | B．Because they can change colors. |
| C．Because their eyes are different. | D．Because they can make different sounds. |
| A．hands | B．legs | C．bodies | D．toe pads |
| A．spring | B．summer | C．autumn | D．winter |
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
