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It is raining today. Alice is making a card in her study now. Her grandpa often does some exercise, but he is reading in his study now. Her father often plays football, but he is watching TV in the living room now. Her mother often does some washing, but she is cooking in the kitchen now. Tomorrow is her mother’s birthday. She can sing songs for her mother. She loves her family.
1．It is sunny today. （2．Alice is making a cake in the kitchen. （
3．Her grandpa is reading in his study now. （
4．Her father is playing football now. （
5．Her mother is cooking in the kitchen now. （
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
