It is half past twelve. The pupils of Class Two are in the classroom. They are having a break (休息).
Rose is drawing a horse. Henry is helping her. They can draw very well. Frank is playing his drum. It's noisy. Lucy is singing an English song. She is good at singing. She wants to be a singer. Jack is eating some French fries. They are nice. I am reading some books. They’re interesting. But it’s too noisy. So I’m not very happy.
I can see a sign on the wall. It says, “Don’t make a noise in the classroom.” Then I walk to the front of the classroom and say, “Look at the sign. Keep quiet, please.” My classmates look at me and don’t say a word. Oh, how quiet it is!
1.The pupils are having a break in the classroom. (2.Lucy is good at singing. She is a singer. (
3.Jack is reading an interesting book. (
4.There is a sign on the wall. (
5.We can make a noise in the classroom. (
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