单复数变化规则(语法).ppt

可数名词和不可数名词,可数名词Countablenouns,（1）定义：是可以计数的名词。（2）可数名词前可以用a,an限定,表一个（3）可数名词前可以用one,two,three限定。（4）可数名词有复数形式。,GrammarFocus,不可数名词Uncountablenouns,（1）定义：是指不能计数的名词。（2）不可数名词前不可以用a,an限定。（3）不可数名词前不可以用one,two,three限定。（4）不可数名词没有复数形式。,单数名数名词变为复数名词有以下规则：,1、一般情况下在名词后面加-s。pencilpencils,sistersisters,2、以s,x,ch,sh结尾的名词后加-es.watchwatches,boxboxes(盒子)3、以辅音字母加y结尾的名词，先将y改为i，再加-es。familyfamilies,4、字母o来真神奇，有生命来-es，无生命来加-s。顺口溜：黑人(negro-negroes)和英雄(hero-heroes)吃土豆(potato-potatoes)和西红柿(tomatotomatoes)photophotos,5、以f或fe结尾的名词，先将f为v，再加-esknifeknives(小刀)顺口溜：妻子持刀去宰狼，小偷吓得发了慌。躲在架后保己命，半片树叶遮目光。wife(wives)knife(knives)wolf(wolves)thief(thieves),6、不规则变化。顺口溜：大鹅(goose-geese)老鼠(mouse-mice)齐步走，男男(man-men)女女(woman-women)呲呲牙(tooth-teeth)。,7.单复数形式一致：一个中国人(Chinese)和一个日本人(Japanese)骑着一只羊(sheep)和一头鹿(deer)去吃水煮鱼(fish)。,写出下列可数名词的复数形式。mapbananatablechairdeskpenbooksoccerbasketballtomatopotatophotozoodictionaryfamilystrawberrytoyboykeyclasswatchboxknifechiefwifemanwomanchildsheepdeer,Exercise:,mapsbananastableschairsdeskspensbookssoccersbasketballstomatoespotatoesphotoszoosdictionariesfamiliesstrawberriestoysboyskeysclasseswatchesboxeskniveschieveswivesmenwomenchildrensheepdeer,Answers:,1b:Howmanyotherwordscanyouaddtothelist?你在每一栏后还能补充几个单词？,Fruits:pear,strawberry,apple,orange,bananaVegetables:broccoli,tomato,salad，potatoOthers:ice-cream,hamburger,frenchfries,1c:Listenandcirclethefoodyouhearin1a.听录音，在1a中圈出所听到的食物。,salad,eggs,apple,icecream,hamburger,banana,orange,carrots,chicken,rice,1d:Listenagainandfillinthechart.再听一遍录音并填表。,Tom,sally,likes,doesntlike,carro