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Hello, I’m Li Ming. Welcome to my new school. It’s very beautiful, but it was very small three years ago. Now it’s much bigger than before. There is a new garden. There are many flowers and trees in it. Look at our playground. We often play sports there after school, but we didn’t have one before. This is our computer room. There was no computer room in our old school. Look! The students are having a music class now. Some students are playing the pipa, some students are playing the piano. How happy they are!
1．Li Ming’s new school is very beautiful.2．They had a playground before.
3．There is a computer room in his school now.
4．The students are having a PE class now.
5．The students are very happy.
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
