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Let’s go to the flea (跳蚤) market!
I’m Leo. There are a lot of things on sale at the flea market! Let’s go and see! ※This is John’s green scarf. It’s only two yuan. ※Whose sunglasses are those? They’re Mike’s. They’re three yuan. ※Wait! Is this Sarah’s blue hat? I love it so much! How much is it? Four yuan! I have five yuan. I’ll take it. ※ How about my one yuan? I can buy Amy’s book! Now I have a hat and a book! What a fun day! |
1．( )
| A．2 | B．3 | C．4 |
A． | B． | C． |
A． | B． | C． |
| A．in the street | B．in the supermarket | C．on the playground |
| A．We don’t know | B．Yes, he does | C．No, he doesn’t. |
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
