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 A

  a 

  [误] I think it is an useful English dictionary.

  [正] I think it is a useful English dictionary.

  [析] 在不定冠词a与an的用法中要注意的一点是:an用在以元音开头的词之前;而a则用在以辅音开头的词之前。要特别注意的是以u字母打头的单词,如useful,university等,其第一个音标是[j],所以要特别予以注意。

  [误] I need a hour to finish this letter.

  [正] I need an hour to finish this letter.

  [析] 要注意hour和honest的第一个字母不发音。

  [误] My teacher is a unknown man, but he is a very good man.

  [正] My teacher is an unknown man, but he is a very good man.

  [析] 要注意以u打头的单词,它的发音为[]时,单数名词前要用an,如uncle等。

  [误] There is a "f" in the word "football".

  [正] There is an "f" in the word "football".

  [析] 英文字母单独使用时,如其第一个发音是元音时,其前面的不定冠词应该用an而不是a.

  [误] I have a little brother. He is a 8yearold boy.

  [正] I have a little brother. He is an 8yearold boy.

  [析] 要注意这些字母的第一个发音为元音,如eight, eleven等。  

  able 

  [误] This bike is able to be repaired.

  [正] This bike can be repaired.

  [析] be able to 主要表达某事或某人具有某种能力去作某事,应译为"有本领"、"有能力"、"可以"作某事,如:I‘m able to swim across this river. 而can可以用来表示具有接受能力或吸收能力。如:This radio can be repaired here.

  about 

  [误] This class is about to begin just now.

  [正] This class is about to begin.

  [析] 要注意be about to 是"将要"的意思,含有将来时之意,不要与表示过去时的时间状语连用。另外,be about to 一般用作书面语,对应的口语是be going to.

  about on 

  about与on都可以作"关于"讲,但却有所不同,例如:This book is about physics. 应译为"这是一本关于物理学的科普读物。"而:This book is on physics.则应译为"这是一本物理学方面的专著。"

  above 

  [误] The temperature is five degrees over zero.

  [正] The temperature is five degrees above zero.

  [析] 表达"在……上方"时,above与over是可以互换的,如:The sky is above(or over)our heads. 但是要表达在垂直方向上的上方时则应用above不可用over,如:The sun has risen above the horizon.

  [误] There is often thick cloud above the South of China in summer.

  [正] There is often thick cloud over the South of China in summer.

  [析] 当表达覆盖之意时,只可用over而不能用above.

  [误] There is a bridge above the river.

  [正] There is a bridge over the river.

  [析] 用来表达"从……上方越过"时不能用above只能用over,如:The plane flew over the city. 但要注意There is waterfall above the bridge. 则应译为"在桥的上游有一个瀑布。"

  across 

  [误] He ran across the wood.

  [正] He ran through the wood.

  [析] across是指某一动作在一平面内进行,而through则是指该动作在一三维立体空间的运动过程。如:The man came in through the window. He walked across the square.

  across 

  across的主要用法有两个。其一,意为"对面",如:There is a school just across the street. 其二,意为"横过",如:He walked across the street.

  afraid 

  [误] I dont‘t afraid of him.

  [正] I am not afraid of him.

  [析] 要注意"害怕"afraid一词在英语中不是动词,而是形容词,要与be动词连用。

  after 

  [误] Two weeks after he left.

  [正] Two weeks later he left.

  [正] He left after two weeks.

  [析] 要表达"在多少时间之后",英语中有两种表达法,即:用later时,要时间在前,如three hours later; 而用after时要时间在后,如after three hours.

  [误] My father will be back after a few hours.

  [正] My father will be back in a few hours.

  [析] 受中文的影响,这个介词常常被误用。当你要表达在一段时间内某个动作可以完成时,一定要用in,而不能用after,因为after是指在某一时间之后。例如:This work will be done in two days. 即表明在两天内这一工作一定会做完。而如用了after,即表示在两天之后,完成的时间是不确定的。

     

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