资源描述
Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,Free powerpoint template:,*,冠词a和an的用法,冠词,a,和,an,a/an,在英语中被称为,不定冠词,。它们表示,一,（个，只，本，件，块，片,），在意义上,没有,区别。,用,a/an,时，我们必须记住两条基本原则：,a/an,有,不确定,的意义。（即所说,的人、动物或东西对听者或读者来说,可能是不知道的）如：,I am,a,girl.,A,dog has four legs.,a/an,只能用于,单数可数名词,之前。,2,Free powerpoint template:,在英语中，,液状,、,气状物体、肉类、粉类,等很多都属于,不可数名词,，前面不能够带有,不定冠词（,a an),。,例如,cola,可乐，,milk,牛奶，,water,水和,gas,汽油，等等。,例如：,a book,（一本书），,an eraser,（一块橡皮）,3,Free powerpoint template:,此外还需注意,a,和,an,的发音：,n,用于,元音,（以,元音字母,a,，,e,，,i,，,o,，,u,开头的词大多都是）之前。,an,a,（在平时讲话中发,音），用于,辅音,（不是辅,音字母）之前；,4,Free powerpoint template:,专项训练,I,：用,a,an,填空。,1.-Whats this in English?-Its _ bus.,2.Whats that in English?-Its _ pen.,3.Is this _ apple?,-No,its _ egg.,4.It is _ cake.,5.Is that _ pencil?,-No,its _ eraser.,6.Thats _ English car.,7.It is _ phone.,8.Whats that in English?-Its _ car.,9.I am _ teacher.,10.This is _ old desk.,an,an,an,an,an,5,Free powerpoint template:,the,的用法,1,，一般用于特指：,The,girl is my sister.,那个,女孩是我的妹妹。,2,，第二次出现（上文提过的人或事）：,There is,a book,on the desk.,T,he book,is mine.(,桌子上有一本书，,那本书,是我的。）,3,，世界上独一无二的：,T,he moon,（月亮）,the earth,（地球）,the sun,（太阳）,the Great Wall,（长城）,6,Free powerpoint template:,4,，词组,：,on,the,desk in,the,classroom,water,the,plants clean,the,room,等等,5,、用于序数词和形容词的最高级前：,January is,the first,month of the year.,February is,the second,month of the year.,Jenny is,the oldest,girl in the class.,I am,the youngest,in my family.,7,Free powerpoint template:,练习：,1,，,Tom wants to b,e,scientist(,科学家）,。,He wants to go to,moon.,2 Jenny has,uncle and,cousin.,3,I have,eraser.,E,raser is in my bag.,4,boy is Toms brother.,5,The bird was here,hour ago.,a,the,an,a,an,The,The,an,8,Free powerpoint template:,
展开阅读全文