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| A. Go swimming together! B. Can you cook? C. Share our books! D. Goal! Goal! Goal! E. Let’s move our body! |
1．Do you like yummy food? Do you want to cook? Join us! We meet every Tuesday afternoon at two o’clock in the dining hall. Write an email to cooking@urfriend. com.
2．What is your hobby? Do you like playing football? Join us! See you on the playground! Write an email to jack@urfriend. com.
3．What do you do on Saturday afternoon? I like swimming. Do you want to go swimming with me? Call Jim at 87754433.
4．There is a dancing party at 7:00 p.m. on Friday. Come and join us at the dancing room. Write an email to sally@urfriend. com.
5．Do you like reading? Bring your favourite books on Sunday afternoon. Let’s read together. Call Mary at 87393098.
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
