(1)我们很快就学会了新的技术。(改为“被”字句、“把”字句)
(2)浓墨似的乌云一下子遮黑了半边天。(改为“被”字句、“把”字句)
(3)生活在八十年代的青年人是多么幸福啊!(改为陈述句)
(4)青少年不能没有理想。(改为反问句)
(5)你们可以小点声说话吗? (改为祈使句)
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