高一英语:易错知识点名词的单复数形式的误判

2017-02-13 22:19:22 来源:精品学习网

   【典例】—What do you think the( ) should do first?

  —They should learn to take ( )as well as share rights in life.

  A. grown-up; responsibility   B. growns-up; responsibility

  C. grown-ups; responsibilities D. growns-ups; responsibilities

  错因分析:有些考生以为grown是复合名词的中心词,其复数形式应该在grown后面加-s;另一方面认为responsibility是不可数名词,没有复数形式,从而错选B.其实,grown-up没有中心名词,其复数形式应该在up后面加-s;同时根据语境可知,responsibility指义务,该单词作“义务,职责”讲时,可作可数名词或不可数名词,故正确答案选C.

  复合名词的复数形式一般在中心名词后面加-s,如:looker-on → lookers-on, son-in-law → sons-in-law;但是当复合名词没有中心名词时,其复数形式是在最后的词后面加-s,如:grown-up → grown-ups; go-between → go-betweens.

  (责任编辑:康彦林)

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