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There is a meeting in a big hall(礼堂). It is about music. Many people are sitting there. John is the speaker. He is making a speech(演讲). At first, about 200 people are there and listening to him. He is very talkative(健谈的). But little by little(渐渐地), some people go away(离开). After 15 minutes, just a few people are there. After 30 minutes, just one man is sitting there and listening to John. When John finishes his speech, he runs to the man and says happily,“Thank you for listening to me. Thanks a lot.”
“Oh, I am the next speaker,” says the man.
1．There is a concert(音乐会) in a big hall.2．At first, there are about 200 people listening to John’s speech.
3．After 15 minutes, there is only one man listening to John.
4．The man doesn’t leave because he likes John’s speech.
5．Maybe John is not a good speaker.
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
