搜索
Collection
It is a snowy day. Little Tom can’t go outside. He goes into the kitchen. Mom is at the table. She has got a large album and some cards. “What are those, Mom?” asks Tom. “They’re postcards,” says Mom. “Collecting postcards is my hobby.”
Tom walks into the sitting-room. Dad is at the desk. “What are those, Dad?” asks Tom. “This is my stamp collection.” says Dad. “I want to collect something, too.” Tom thinks as he goes to his room. He has got some picture books and some balls. But Tom doesn’t like them. He opens his box. There are lots of model planes in it. Tom feels very happy. “Wow! Now I can collect model planes.”
1．It is _________ outside. ( )| A．rainy | B．windy | C．snowy |
| A．cards | B．balls | C．storybooks |
| A．Collecting postcards | B．Collecting stamps | C．Reading books |
| A．some picture books | B．some balls | C．both A and B |
| A．picture books | B．toy cars | C．model planes |
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
