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Jack had some holidays. He wanted to go to a quiet place by train. He put on his best clothes and took a small bag. He got on the train. The train began to leave. Jack put his head out of the window. The wind blew his hat away. He felt anxious. But soon he calmed down. He quickly took his small bag and threw it out of the window. He said, "there is my name and my address on my bag. Someone will find my hat and bag. And he will send me the bag and the hat.
1．Jack went to a quiet place by train. （______）2．Before he got to the train, the train had left. （______）
3．The wind blew his small bag away. （______）
4．He thought people would send his bag to him. （______）
5．Jack was very clever. （______）
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
