(1)孙中山背出功课。(扩句,至少两处)
(2)那鲜艳的服装,把学校打扮得绚丽多彩。(改为“被”字句)
(3)同学们向在校园里欢唱的小鸟打招呼,向敬爱的老师问好,向高高飘扬的国旗敬礼。(仿写)
(4)孙中山想:这样糊里糊涂地背,没有用。(改成反问句)
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