1.
![](http://static.xuejinqu.com/qimg/bdb/bdbe09fa22085ac5ef88cea3b148edc2.png)
It is Saturday morning. My father is _________ the car. I am _________ him. My mother is ___________ ___________ in the kitchen. Helen is ________ the living room. She is _________ the floor. Where is Tim? What is he doing now? Tim is in his __________ .He is ____________. Ben’s dog is sleeping too.
2.
![](http://static.xuejinqu.com/qimg/04e/04e94b1dc1b4705d74a33f5bb0b8d72d.png)
In the afternoon, my cousin Jim comes. What are we doing now?My mother is __________. She is __________ ___________ . Helen and I are ________ _________. Helen is ___________ the dishes. I am ________ the table.
3.
![](http://static.xuejinqu.com/qimg/6db/6db63858fe72071dd1a76bf899656b1e.png)
What are Tim and Jim doing? They are ________ __________ in the living room. They’re ________ ________ too!
![](http://static.xuejinqu.com/images/y-prise.png)
同类型试题
![](http://static.xuejinqu.com/images/medal.png)
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
![](http://static.xuejinqu.com/images/avatar.png)
![](http://static.xuejinqu.com/images/avatar.png)
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
![](http://static.xuejinqu.com/images/avatar.png)
![](http://static.xuejinqu.com/images/avatar.png)