高一英語：易錯(cuò)知識(shí)點(diǎn)名詞的單復(fù)數(shù)形式的誤判

 　　【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

　　錯(cuò)因分析：有些考生以為grown是復(fù)合名詞的中心詞，其復(fù)數(shù)形式應(yīng)該在grown后面加-s;另一方面認(rèn)為responsibility是不可數(shù)名詞，沒有復(fù)數(shù)形式，從而錯(cuò)選B.其實(shí)，grown-up沒有中心名詞，其復(fù)數(shù)形式應(yīng)該在up后面加-s;同時(shí)根據(jù)語境可知，responsibility指義務(wù)，該單詞作“義務(wù)，職責(zé)”講時(shí)，可作可數(shù)名詞或不可數(shù)名詞，故正確答案選C.

　　復(fù)合名詞的復(fù)數(shù)形式一般在中心名詞后面加-s，如：looker-on → lookers-on， son-in-law → sons-in-law;但是當(dāng)復(fù)合名詞沒有中心名詞時(shí)，其復(fù)數(shù)形式是在最后的詞后面加-s，如：grown-up → grown-ups; go-between → go-betweens.

　　(責(zé)任編輯：康彥林)

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