问题 解答题

小明的爸爸是一名出租车司机,一天下午小明的爸爸以某超市为出发点,在东西方向的公路上运营,记向东为正,向西为负,以先后次序记录如下:(单位km)

+9,-3,-5,+4,-8,+6,-3,-2,-4,+10

(1)将最后一名乘客送到目的地时,出租车离出发点有多远?在它的什么方向?

(2)若每千米收费为2.5元,小明爸爸这个下午的营业额是多少元?

答案

(1)+9+(-3)+(-5)+(+4)+(-8)+(+6)+(-3)+(-2)+(-4)+(+10)

=9-3-5+4-8+6-3-2-4+10

=4,

所以出租车离出发点有4千米远,在正东方向;

(2)(9+3+5+4+8+6+3+2+4+10)×2.5=145,

即小明爸爸这个下午的营业额是多145元.

材料分析题

青春是美好的,令人神往,令人怦然心动!青春也是短暂的,她对每个人自由一次,最终也如梦似烟,一丝一缕地散去而不再飘回,青春的意义和价值在于有所追求,并为之奋斗过。 青春是美丽的,但美丽的标准绝不是漂亮的服饰,时髦的打扮和所谓的潇洒浪漫。有理想、有道德、有知识、有修养是美丽青春不可能缺少的内容。

(1)从材料中你体会到青春是怎样的?

                                                                                                                                                              

                                                                                                                                                              

                                                                                                                                                              

(2)谈谈你要怎样珍惜青春,开采青春的价值。

                                                                                                                                                              

                                                                                                                                                              

                                                                                                                                                               

选择题