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( ) 1.
A. —Nice to meet you! B. —Happy birthday!
—Nice to meet you, too! —Thank you!
( ) 2.
A. —How old are you? B. —How are you?
—I'm seven years old. —I'm fine, thanks.
( ) 3.
A. This is my father. He is a policeman.
B. This is my mother. She is a teacher.
( ) 4.
A. —My head hurts. B. —See you later!
—Let's see a doctor. —Bye!
( ) 5.
A. This is my family. We live in China.
B. This is my family. We live in Canada.
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
