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⑴—What colour is your dress? —It’s white.
⑵This is Jack’s pen. That is my pen.
⑶—Is ice cold?—Yes，it is.
⑷They are pupils of this school. They are in Class One.
⑸It’s a fine day. We can see sun in the sky.
⑹There is an orange on table.
⑺We go to school in morning.
⑻This is Huangpu Park. It’s near Huangpu River.
⑼We like sports. We like playing football best.
⑽They go to Summer Palace on Saturdays.
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
