half的用法! 英语
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【答案】 half 意为“一半”,复数形式是halves.用法有以下几点,
1.half可直接修饰名词,这个名词既可以是复数,也可以是单数.例如:
Half the apples are bad.这些苹果中有一半是坏的.
Half the apple is bad.这个苹果一半是坏的.
2.half of后跟名词时,这个名词前应有the,this,my等限定词修饰,这时of也可省略.例如:
Half (of) the people are from England.这些人中有一半是英国人.
Half (of) the students in that school are from the countryside.那个学校有一半学生来自农村.
3.half of后也可接代词,这时of不能省略.例如:
Half of them enjoyed the party last night.他们中有一半人喜欢昨晚的晚会.
Only half of them came last Sunday.上星期天他们中只有一半人来了.
4.在谈论距离、长度和数量时,要用half,一般不用half of.例如:
His old house is half a mile down the road.他的旧居在沿着这条路往下走半英里的地方.
Mr Smith drank half a bottle of whisky last night.史密斯先生昨晚喝了半瓶威士忌酒.
5.half也可用作副词.例如:
I half agree with you.我不完全同意你的意见.
This meal is only half-cooked.这顿饭做得只有半熟.
注意:①“half + 名词”或“half of + 名词”作主语时,谓语动词的单、复数形式由所接名词的单、复数形式来决定,名词是中心词.例如:
Half (of) the oranges are bad.一半的桔子坏了.
Half (of) the car was damaged.那辆车有一半被损坏了.
②“……个半……”可表达为“数词 + 名词 + and a half”或“数词 + and a half + 名词(复数)”.例如:
三个半月 three months and a half / three and a half months