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Tomorrow we are going to plant trees. Now let me tell you how to plant a tree.
A. Dig (挖) a hole large enough for the trees. But the hole should not be too deep (深).
B. Knock (插入) a long, strong stick (木棍) into the earth in the hole.
C. Put the tree in the hole next to the stick.
| A．Put the earth back into the hole again. |
| B．Push it down hard with your foot several times. |
| C．Tie (绑) the tree to the top of the stick. |
A. large B. small C. big
2．The hole should not to be too _________.( )
A. deep B. tall C. short
3．“Put the earth back into the hole again” is the ________ step (步骤). ( )
A. first B. second C. fourth
4．“________” is the last step. ( )
A. Push it down hard with your foot several times.
B. Tie the tree to the top of the stick.
C. Knock a long, strong stick into the earth in the hole.
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
