改正下列词语中的错别字，把正确的依次写在横线上

从新      壮烈毫迈       真挚       闽南

____

如图所示，小明分别沿甲、乙两个光滑滑梯从同一高度由静止下滑到底端，在此过程中（   ）

短文填空先通读下面的短文，然后根据短文内容和所给首字母，在空格内填入一个适当的词，使短文意思完整。
      American people like to say “Thank you” when others help them or say something kind to them. People of many other countries do so, too. It is a very good habit.
      You should say “Thank you” when someone p____  you the salt on the table, when someone walking before you k____  the door open for you, when someone s____  you have done your work well, or you have b____  a nice thing, or your city is very beautiful. “Thank you”is used not only between friends, but also between parents and children, brother and sisters, husbands and wives.
    “Excuse me”is another s____  sentence they use. When you hear someone say so behind you, you know that someone wants to walk p____ you. It is not polite to b____  others while they are talking. If you want to speak to one of them, say “Excuse me” first, and then begin talking. You should also do so when you want to cough(咳嗽) or make any u____  noise before others.

In Switzerland, things like glass and plastic _____ into different groups and then recycled

如图,直线AB分别与两坐标轴交于点A（4,0）.B（0,8）,点C的坐标为（2,0）.

（1）求直线AB的解析式；
（2）在线段AB上有一动点P.
①过点P分别作x,y轴的垂线,垂足分别为点E,F,若矩形OEPF的面积为6,求点P的坐标.
②连结CP,是否存在点P,使$△ACP$与$△AOB$相似,若存在,求出点P的坐标,若不存在,请说明理由.