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1. Peter exercises for half an hour every day.（对划线部分提问）
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2. Mother spends about 30 minutes cooking dinner for us.（改为同义句）
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3. I sleep for more than 8 hours every night. (对划线部分提问)
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4. I think I need lots of energy every day. (改为否定句)
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5. What about a kilo of meat? (用two替换a改成复数句)
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6. I’d like to eat some hamburgers. (改为一般疑问句)
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7. I can see four pictures on the wall. (对划线部分提问)
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8. I’d like two kilos of fish. (对划线部分提问)
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9. You need to take more exercise. (改为同义句)
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10. Simon doesn’t sleep more than ten hours every night. (改为同义句)
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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
