完形填空。 "Let's go," Grandmother Smith said
题型：完形填空
问题：
| 完形填空。 | |||
| "Let's go," Grandmother Smith said to Josh. She put two fishing poles and an old 1 box in the truck. "If we're late, 2 will stop biting (咬). It's best to go fishing in the morning, 3 they have had breakfast!" She started the truck. On the way, Josh 4 the white box at his feet. It was full of lures (鱼饵), which looked like little toys. Josh wanted to touch them, but Grandmother her head. On arriving at the like, Grandmother 5 the poles and a picnic basket, and Josh carried the box. They walked to the fishing area. "I'll be happy when you 6 your first fish!" Grandmother said. She spread out a tablecloth and sat on it. She opened the basket and pulled 7 a box of cookies. Josh took a cookie and ate it 8 his grandmother worked on his pole. Very soon, Grandmother handed the pole to him. "When fish are hungry, they will bite 9 anything. I used to catch fish with bread, but now I like to use 10 . Would you like to pick one out?" | |||
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37°的固定斜面上，对物体施以平行于斜面向上的拉力F，当作用时间为t1=1s时撤去拉力，物体运动的部分
图象如图乙所示，g=10m/s2，求：