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泛指,不定冠词用在首次提到的或不限定的单数可数名词前表示泛指,特指,(1),用在上文提到的人或物前表示特指,(2),用在被限制性修饰语加以限定的人或物前表特指,(3),用在表示双方所默认的特定的人或物的名词前表特指,表示类指或某类中的,“,任何一个,”,。,A,virus is a very small living thing that causes disease.,表示泛指,“,某个,”,。当说话人第一次提及某人或某物时通常用不定冠词;或由不定冠词构成的名词词组往往带有不确定的含义,相当于,a certain,;或专有名词前加不定冠词,表示具有某种特性的人或物、某一位不认识的人或某个不确定的时间。,I have,a,question to ask you.,In,a,sense what you said is true.,All of,a,sudden,she burst into tears.,Experts think that the recently discovered painting may be,a,Picasso.,表示量指。不定冠词表示,“,一,”,这个数量,但数的概念没有,one,强烈。,Suddenly they heard,a,loud voice.,表示,“,每,”,,相当于,each,every,per,,用在表示价格、速度、比率等词前。,Prices start at,13.95,a,yard for printed cotton.,用在某些物质名词或抽象名词前,使之具体化。表示,“,一种,的人或事,”,。,He suddenly appeared on a rainy night,which was,a,great surprise to us.,不定冠词用于序数词前,表示,“,再一,又一,”,。,Live a good,honorable,life.Then,when you get older and think back,youll get to enjoy it,a,second time.,表示特指的人或物,或者双方都知道的或心中都明确的人或物,或者指上文已经提到过的人或,事物。,Take your time its just a short distance from here to,the,restaurant.,用在世界上独一无二的事物前。,The,earth goes around,the,sun.,用在序数词或形容词、副词的最高级前。,Is this,the,first time that you have visited,Qingdao,?,用在表示姓氏的复数名词之前,表示一家人或夫妻俩;或用于形容词或分词前,表示某一类人,或物。,The explosion saw people rush to help,the,injured.,用在世纪前或用在逢十的年代前,后者表示,“,在某世纪几十,年代,”,。,Its said that corn was grown a lot in Tibet in,the,17th century.,谢 谢 观 看,
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