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A teacher can be any age(年龄). Just as Mary. She was only ten years old, when she started teaching.
How did many get her job? It wasn’t easy. Mary wanted to help children who cannot hear. But the school had never(从来没有)had such a young helper(助手). Could Many do it?
First, Mary learned to sign(打手语). Soon it was easy for her to talk to the children. So the school let her help. Now, Mary visits the school almost(几乎)every day. The children love their young teacher. She is their friend.
（ ）1. Mary wanted to help children who can’t see.（ ）2. She learned to write for teaching the children.
（ ）3. Singing is a good way of talking with your hands.
（ ）4. The children love their young teacher.
（ ）5. Mary is a kind girl.
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
