通过100个单词掌握英语语法(二十)for

[介词]
(1)表示收到东西的那个人: This package is for you.
(2)表示用途或原因:What is this cupboard for ? Thanks for the flowers.
(3)表示目的地或距离: The bus leaves for the city centre. We walked for miles.
(4)表示一段时间： How long have you been waiting for ? ~Not long.For about five minutes.

语法结构
1 for | + 名词短语
  This book is for students of English.
  The green bin is for glass.
  They left for the beach half an hour ago.
  表示接受者、用途、原因和目的地。
 
1a for| + 名词短语(一段时间)     
     We stayed there for a couple of nights.
     表示一段时间。
2  for | + ing
   You can also use a compass for telling the time.
   This little bell was for summonging the servants.
   表示某物的用途

   2a  动词| ( + 名词短语) | + for | + -ing
    I don't blame you for losing your temper.
    Forgive me for not paying attention.
    She apologised for losing the book.
    表示做某事或说某事的原因。

3  for | + 名词短语 | + 带to的不定式
   I'm waiting for Doug to phone.
   They arranged for the neighbour to collect the mail.
   表示别人做某事.

   3a it | + is/was等 | + 形容词 | + for |  + 名词短语 | + 带to的不定式
      It was difficult for me to understand his accent.
      It's not normal for the shops to be closed.
      描述某人做某事或某种情况的难易度、可能性、价值等.
   3b 名词短语 | + for | + 名词短语 | + 带to的不定式
      There's no need for you to wait.
      Is there any reason for us to stay?
      表示人们做事的理由或机会  

搭配
   后接for 构成短语动词的动词有: account for (= give a reason for),arrange for, ask for,
   bargain for ,care for,fall for,long for(=want very much),look ofr,plan for,prepare for,
   provide for(= look after financially),settle for(=agree to have )和wait for.
  
      There were extra expenses I hadn't bargained for.
      It's an old trick but I fall for it every time.
  
   后面经常接for的名词有: time,room,space,need,desire,hope,chance,opportunity,
   reason,purpose,case,argument,plan,arrangement,search,cure和use.
  
   后面经常接for的形容词有: good,bad,suitable,ready,famous,responsible,sorry.thankful,useful和late
  
   常用于语法结构3a中的形容词有:right,wrong,hard,difficult,easy,dangerous,common,normal,usual,unusual,
   important,necessary,possible和impossible.
  
固定短语
   for ages = for a long time 很长一段时间
   I've known Jo for ages：since we were at school together,in fact.
  
   for now/for the time being 目前
   You can share books for the time being,until new ones arrive.
   建议把某事当作权宜之计。
  
   'what for '= why ?为什么
   Put you shoes on.~What for? ~ We're going for a walk.
  
   if it weren't for / if it hadn't been for ...要不是...
   if it hadn't been for Tom,I would never have got that job.
   表示多亏了某人或某事.
  
   be all for = approve of 赞同
   I'm all for a bit of fun,but this is ridiculous.
  
   for all
   for one thing
   but for
   for a start
   as for