Unit 4  Save The Trees知識點整理

unit 4  save the trees知識點整理
 

1. save  vt. 拯救；解救
   eg. let’s do something to save the animals in danger.
      the police saved the child from the fire.
【拓展】save    “節省、儲蓄”   eg. save money     save time
【變形】safe    adj.       safety  n.
2.discuss    vt    “討論” 后接名詞（短語）或wh-從句及wh-短語           discussion  n.  
  eg. we discussed the problem.
      we will discuss who should do it.
      we will discuss what to teach next term.
3.  leaf   n.  “樹葉”    復數：leaves
4. fight for...  “為……而戰”                fight過去式：fought
   fight against  “與……作斗爭”
  eg. he is fighting against his sickness.     they fight for freedom.
5. provide sb. with sth. = provide sth. for sb.  提供給某人……， 為某人提供……
supply sb. with sth.=supply sth  to sb.
offer sb. sth. =offer sth. to sb.
    eg. sheep provide us with wool. = sheep provide wool for us.
6.in many ways “在許多方面”
【短語】 by the way 順便說一下      in a way 在某種程度上   
              in the way of sb. 妨礙某人  on the way to...在去……的途中        in this way  用這種方法
7. keep    “使維持（某種狀態）”
  keep+名詞+形容詞              eg. the noise kept him awake.
  keep+名詞+副詞/介詞短語       eg. don’t keep the boy outside/ in the room.
  keep +名詞+doing              eg. she kept me waiting for half an hour.
keep in touch with與---保持聯系；      keep back忍住（眼淚）；扣下，隱瞞
keep sth in mind=remember
9.take in...  “接受……， 吸收……”
  eg. the kind man would like to take in the poor boy.
      fish take in oxygen through their gills.   魚用腮吸氧氣
10. breathe[i:]    v.        breath[e]   n.