班会课上，班主任将3月份的“学习标兵”流动红旗授予了小雯所在的小组。小雯双手接过流动红旗后，向自己小组的所有同学深深地鞠了一躬，她这一鞠躬博得同学们的阵阵掌声。这说明小雯深深懂得（     ） 

    Do you use a calendar to help you organize your life? By listing what you need to do on any special day, you can make sure to keep all for your appointments and not worry whether you've forgotten something. Calendars are also useful for reminding(提醒) people what day a certain holiday is on and what days you might have off from work. Besides, they are used for planning fun things like vacations and outings.

    A calendar is usually divided into twelve parts, and each one stands for m month with all the days laid out in a grid-like (网格状的) form. A block of space usually is for are day, and there is enough space for you to write down what you need to do on that certain day. You probably use all different kinds of calendars. A calendar on your cell phone screen is easy to use, and so is a large paper calendar that hangs on your wall.

    Here is one page of Mary's calendar and it shows her plans in May.

    大雪整整下了一夜。第二天早晨，天放晴了，太阳出来了。推开门一看____嗬____好大的雪啊____山川____河流____树木____房屋____都笼罩上一层白茫茫的白雪____极目远眺，万里江山变成了一个粉装玉砌的世界。看近处，那些落光了叶子的树木上，挂满了毛茸茸亮晶晶的银条儿，那些冬夏常青的松树和柏树上，挂满了蓬松松、沉甸甸的雪球儿。一阵风吹来，树木轻轻地摇晃着，那美丽的银条儿和雪球儿簌簌落落地抖落下来。玉屑似的雪末儿随风飘扬，在清晨的阳光下，幻映出一道道五光十色的彩虹。