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1.Today is Sunday. Mimi, Micky and their classmates are going on a social studies trip. They are very happy. (
2.Do you know the Pacific Ocean. There is a big island of litter. These waste things become an island on the water. (
3.Micky feels hungry. He eats a banana. Then he throws the banana skin on the ground. (
4.There are many bins on the street. Do you know recycling bins? We can put newspapers, glass bottles and old books in the recycling bins. (
5.She is very angry with Kitty. Kitty’s ace is red. He feels sorry. (
6.We should obey the rules. We shouldn’t litter everywhere. Now let’s begin. (
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