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It’s Children’s Day today. The students are all in the classroom. They’re having a party now. Look! Bill is eating a big hamburger. Linda is drinking apple juice. What’s Lucy doing? She’s singing and dancing. Is Sally reading a book? Yes, she is. What about their teachers? Look! They’re smiling to their students. Everybody has a good time today.
1．It’s ___________ today. ( )| A．Children’s Day | B．National Day | C．Teachers’ Day |
| A．singing | B．dancing | C．A and B |
| A．eating a hamburger | B．drinking juice | C．eating a cake |
| A．watching TV | B．smiling | C．singing and dancing |
| A．Jul.1st. | B．Apr.1st. | C．Jun.1st. |
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
