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Mrs Black is a worker in a factory. She does a lot of hard work. She works all day. But now she often forgets thins and doesn’t do her work well. She worries about this a lot. So she goes to see her doctor, Mr brown.
“What’s wrong with you, madam.” says the doctor.
“Oh, doctor, I can’t remember things. I often forget it in half a minute. What can I do? Can you help me?” says Mrs Black.
“When does your trouble begin?” the doctor asks.
“When does what begin? Doctor?” asks Mrs Black.
生词点拨
begin—开始 forget——忘记
remember——记得 trouble——麻烦；困扰
1．Mr Black isn’t a farmer.
2．She does a lot of housework all day.
3．She can only remember things before half a minute.
4．Mr Brown is Mrs Blacks doctor.
5．She forgets things in the doctor’s room again.
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
