At the weekend, my families are always very busy. My father often reads books. My mother does some housework. And sometimes she goes shopping. I usually do my homework. I sometimes watch TV. We have a happy family. We often visit my grandparents. We want to have a picnic this Sunday. What about your weekend? And what do you want to do this Sunday? Can you tell me?
1.My families are always very busy at the weekend. (2.My father often reads newspapers. (
3.My mother goes shopping, and sometimes she does some housework. (
4.I usually watch TV. (
5.We often visit my grandparents. (
6.We want to have a picnic this Sunday. (
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