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1．It was my first time to travel by plane. I was so excited. My parents and I were at the airport. The airport was so big and busy. There were lots of people.
2．First, we checked in our bags at the check-in counter. The lady helped us.
3．After that, we went through security (通过安检) . We walked through the scanner.
4．Then we were on the plane. My seat number was 16A. The lady helped us find our seats.
5．My seat was by the window. I could see through the window. How great!
6．Finally, the plane took off smoothly (平稳地) . It was so exciting!
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
