[畅所欲言,有追分,一次全追]find和find out的区别?例子!in at on 的区别?例子!sale和sell

find就是强调"找"这个动作,find out 强调"找到"这个结果,例如：My book is missing,I find everywhere,but can't find out.(我的书丢了,我到处找,但还是找不到)
in 表示在里面,在内部,in the room 在早晨 在中午 一般用in in the morning in the noon
at 一般是一些固定用法 比如说在家 at home 在几点 at five o'clock 比in 表示的要具体
on 一般表示在某某表面 在桌上 on the desk 还表示在某一天,在星期几,比如 on sunday on 9th of may
sale 是销售 卖的意思 是名词 sell也是卖 但它是动词 而且sell比sale范围广
besides
“除…外,还有…”,指更进一步的拥有,包括所“除”事物在内.
besides:(prep.)除...之外
它这个"除"是包含的
Besides Tom,Mary went boating.
(Tom和Mary都去boating)
Have you got any clothes besides these?除了这些衣服你还有别的吗?
except
except:(prep.)除了...之外
后面的范围比主语的范围小,除去的和非除去的是同类事物,用except
We went boating except Tom
(Tom属于"我们(We)"但不没有went boating,但是Tom和We都是人)
不包括所引事物.常与no,none,nothing等否定词或all,everyone,everything等连用,但不可用于句首.
They all went to the Summer Palace except one.除一人之外他们都去了颐和园.
Hello,this is xx speaking.
（如果明显不是找你的话）Are you looking for someone?
1.如果他要找的人不在：Well,look xx is not here now...but you can leave a message if you want to,then when xx is back I will tell him/her.
情况a) (如果对方愿意留下message) Ok,so what's your name?is that ok if she call this number back?(因为有的人可能用公共电话,所以要确定联系电话)
情况b) (如果你知道你的家人/朋友什么时候回来)I think she/he will be back at xx(时间).Would you like to call back then?
2.(如果你朋友在的话) Yes she/he is here.Hold on,I will let he/she to speak to you.