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The students are having a good time. It’s a ___ day. They are going on a field trip.
Look! Mike is watching insects. John is ____ pictures of the ants. What is Chen Jie doing? Oh! She is ______ pictures. Look at the lake. The fish are _____.Look at the sky. The birds are_____.
（1）A. windy B. sunny C. cold
（2）A. drawing B. doing C. watching
（3）A .making B. collecting C. taking
（4）A. swimming B. walking C. climbing
（5）A swinging B. fighting C. flying
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
