Against的详细用法总结
  今天给大家带来Against的用法，我们一起来学习吧，下面就和大家分享，来欣赏一下吧。
  Against的用法
  Against:
  这个词是个介词
  1. “逆着，对着，顶着”
  They were rowing against the current.
  他们逆水划船。
  The ship won’t strike against a rock.
  这首船不会触礁。
  Heat is produced when work is done against friction.
  克服摩擦作攻时，产生热。
  2. “反对，违反”
  This explanation is against the natural laws.
  这个解释是违反自然规律的。
  There is a regulation against smoking in the office.
  办公室禁烟。
  Americans were against the proposal.
  美国人反对这项建议。
  3. “靠着，相对”
  The photo hangs against the wall.
  这张照片挂在墙上。
  Against the post office there stands a hospital.
  邮局对面是一家医院。
  The shop is against the school.
weight的用法搭配
  商店在学校对面。
  4. “对照”
  3 against 2
  3比2
  The trees were black against the morning sky.
  在早晨的天空的映照下，那些树是黑的。
  The school has 100 students this year，as against the 80 last year.
  这所学校今年有100个学生，而去年只有80个学生。
  5.“以防，以备”
  We store up vegetables against the winter.
  我们储备蔬菜以备冬用。
  We must guard against disease.
  我们必须预防疾病。
  Save money against a rainy day
  未雨绸缪
  熟练掌握against的词性与用法
  ①.表示反对关系:
a. I will speak against anything that I know to be wrong.
b. Many of the students are against the plan.
②.(表位置)靠着,顶着,迎着,衬着
a. The piano stood against the wall.
b. He could hear the rain pattering against the windows.
c. The trees were black against the morning sky.
d. He struck her head against the branch of a tree.
③.预防,防备,准备…时用
a. We are all taking medicine against the disease.
b. They bought some warm clothes against the cold winter.
c. We have to save some money against old age.
④.表示对比关系
a. He was elected by a majority of 20 votes against 10.
⑤.词组或固定搭配:
  against one’s will违反自己的意愿; go against违反,不利于
  英语语法|史上最全的英语介词用法归纳总结!
  表示方位的介词：in, to, on

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