冠词(a,an,the)的用法

,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,冠词,(,a,an,the,),的用法,相同点：,a,和,an,都是表示数量“一”。,不定冠词,a,，,an,的用法,不同点：,an,用于元音音素开头的单词前。,(,a,e,i,o,u,),（如：,an apple,an egg,an elephant,an insect,an orange,an umbrella,an old man,an island,an hour),a,用于辅音音素开头的单词前。,（如：,a dog,a cat,a pen,a book,a big apple,a small egg ),定冠词,the,的用法,1.,一般用于特指。,2.,第二次出现。,3.,世界上独一无二的。,4.,词组,5.,用在序数词和形容词最高级前。,冠词,(,a,an,the,),的用法,是动词,(be),的用法,be,（原形）,现在时,过去时,is,are,was,were,he is/she is/it is/Tony is,（用在主语是单数的后面）,We are/You are/They are,（用在主语是复数的后面）,am,I am=Im,我是,I was/He was/she was/,it was/Tony was,（用在主语是单数的后面）,We were/They were/You were,（用在主语是复数的后面）,(be,动词）一般疑问句及其回答,Are you?,Yes,I am.,No,I am not.,Yes,we are.,No,we arent.,Is he?,Yes,he is.,No,he isnt.,Is she?,Yes,she is.,No,she isnt.,Is it?,Yes,it is.,No,it isnt.,(be,动词）一般疑问句及其回答,Are you?,Yes,I am.,No,I am not.,Yes,we are.,No,we arent.,Is he?,Yes,he is.,No,he isnt.,she,Yes,she is.,No,she isnt.,it,Yes,it is.,No,it isnt.,Are they?,Yes,they are.,No,they arent.,(be,动词）的否定形式,+not,be,is not=is,nt,are not=are,nt,am not=am not,was not=was,nt,were not=were,nt,助动词,do,的否定形式,+not,can not=cant,could not=couldnt,will not=wont,would not=wouldnt,must not=mustnt,should not=shouldnt,do,do not=dont,does not=doesnt,did not=didnt,情态动词,名词的用法,名词,可数名词,不可数名词,(,没有复数形式，,不能,加,s,）,单数（数量是,1,个）,复数,（数量是,2,个或,2,个以上时，在单词后加,s,或,es,）,液体：,tea/milk/water/juice/cola,肉类：,meat/chicken/pork/,beaf,粉类：,bread/salt/rice/sugar,其他：,glue/paper/tofu/medicine,名词复数的变化,1.,一般在名词后面加,s.,2.,已字母,s.x.ch.sh,或,o,结尾，只在后面加,es,.,例,:bus-buses glass-glasses box-boxes,fox_foxes,watch_watches,beach_beaches,dish_dishes,tomato_tomatoes,potato_potatoes,注意：,photo:photos,radio:radios,piano:pianos,3.,辅音字母加,y,结尾，要把,y,改成,i,再加,es,.,例：,baby balcony hobby family dictionary,city factory library.,注意,:,以元音字母,+y,结尾的名词变复数，不变，直接加,s.(boy,day,key,monkey).,4.,字母,f,或,fe,结尾，则要把,f,或,fe,改成,v,，再加,es,.,例：,knife_knives,leaf_leaves,wolf_wolves,5.,不规则：,man:men woman:women,child,；,children tooth:teeth mouse:mice,6.,单复数形式相同的名词。,people:people sheep:sheep,Chinese:Chinese,some,和,any,的用法,Some,用于,陈述句,、,肯定句,和,祈使句,Any,用于,否定句,和,一般疑问句,如：,1.I have some books.,2.Yes,he has some pens.,3.Would you like some milk?,4.Can I ask you some questions?,Any,用于,否定句,和,一般疑问句,如：,Do you have,any,envelopes?,No,I dont have,any,envelopes.,Are there,any,desks in your classroom?,No,there arent,any,desk in my classroom.,I dont have,any,money,and,I dont have,any,food.,I dont have,any,money,or,food.,I have some money,and,some food.,补充：,or,用于否定句中两者相连。,And,用于肯定句中两者相连。,数量搭配可数名词和不可数名词,many(,许多，大量）：只能和复数可数名词连用。,例：,There are many books on the desk.,much(,许多，大量）,(1),能和不可数名词连用。,There is much,water,in the bottle.,(2),用在比较级前，表示两者相差很大。,The Jupiter is,much,bigger than the Earth.,some(,一些），,any(,一些,)a lot of=lots of,(,大量），可以用在可数名词，也可以用在不可数名词。,