课外活动时，小明和小华均在操场上沿直线进行跑步训练．在某次训练中，他们通过的路程和时间的关系如图所示，则下列说法中正确的是（   ）

    Mike eats breakfast five times a week . He doesn't eat breakfast on Saturday and Sunday . He washes the dishes twice a week . He washes them on Saturday and Sunday . He waters the plants four times a week . He doesn't water them on Monday , Wednesday and Friday . He always sets the table . He sets the table from Sunday to Saturday . He washes his dog once a week . He washes it only on Saturday . He goes swimming twelve times a month . He swims on Monday , Wednesday and Friday . But he never cleans his room .

阅读下列材料，回答问题：
材料一：“外争主权内除国贼”、“废除二十一条”、“拒绝在和约上签字”
材料二：“6月5日上海日商纱厂的中国工人首先罢工……接着，机器、纺纱、印刷、公共交通、码头、船坞等行业的工人相继罢工。”
（1）材料一的口号出自哪一运动？这场运动的导火线是什么？这次运动爆发于什么时候？由哪个阶级发起？
（2）从材料二分析上述运动6月以后发生了什么变化？
（3）此事件对中国产生了什么影响？