题目

假设你是红星中学高三学生李华。请根据以下四幅图的先后顺序，用英文写一篇周记，记述春节前你跟奶奶学做剪纸的过程。注意：词数不少于60。提示词：剪纸，窗花papercut 答案：On February 6, I wentto visit my grandma. Entering the room, I found her busy making paper cuts.Looking at the calendar, I realized it was just the right date for roomdecoration according to the Chinese tradition. Attracted by the delicate works, I couldn'twait to have a try. With her patient instruction, I learnt the basic steps andskills of making paper cuts. It wasn't long before my creations (2011年山东青岛模拟)如图所示，在水平天花板的A点处固定一根轻杆a，杆与天花板保持垂直．杆的下端有一个轻滑轮O.另一根细线上端固定在该天花板的B点处，细线跨过滑轮O，下端系一个重为G的物体，BO段细线与天花板的夹角为θ＝30°.系统保持静止，不计一切摩擦．下列说法中正确的是(　　)A．细线BO对天花板的拉力大小是B．a杆对滑轮的作用力大小是C．a杆和细线对滑轮的合力大小是GD．a杆对滑轮的作用力大小是G