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My name is John. I’m from Canada. I like summer best. It’s very hot and the days are long. So I usually go swimming in the sea. And I can swim very well. In our school, we have a swimming contest. It’s on June 30th. Today is June 22nd. It’s coming. I hope I can win. I have summer vacation in summer, too. I often visit some great places in the world on the vacation. This summer vacation, I want to go to China with my family. And we will visit the Great Wall in Beijing.
1．John is a Canadian boy.2．Summer is John’s favourite season.
3．John can’t swim.
4．The swimming contest is on June 22nd in John’s school.
5．John’s family will visit the Great Wall this summer vacation.
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
