名詞單數(shù)變復(fù)數(shù)專練課件

1、名詞名詞單數(shù)單數(shù)變變復(fù)數(shù)復(fù)數(shù)Whats this in English?Its an apple.What are these?They are two apples.-What are these?-Whats this?-Its a pen.-They are pens.-What are those?-Whats that?-Its an English book.-They are English books.backpackswatchesorangespens-Whatre these ?-Theyre .mapscaseskeys-Whatre those ?-Theyre .普

2、通名詞可數(shù)名詞不可數(shù)名詞單數(shù)復(fù)數(shù)可數(shù)名詞如何變化？規(guī)則變化不規(guī)則變化規(guī)則變化規(guī)則變化1.一般情況下，直接在詞尾加一般情況下，直接在詞尾加-s構(gòu)構(gòu)成復(fù)數(shù)形式成復(fù)數(shù)形式。結(jié)尾是清輔音讀。結(jié)尾是清輔音讀s，結(jié)尾是濁輔音或元音讀結(jié)尾是濁輔音或元音讀z。 carbackpackcarsbackpacksbookbooksnamepencardrulernamespenscardsrulersbox2. 以s, x, ch, sh等結(jié)尾的名詞， 在詞尾加-es構(gòu)成復(fù)數(shù)形式。讀iz boxesclassclasseswatchwatchesbrushbrushessxshchbusbusesfoxesfox

3、(狐貍)dish(盤子)dishes綜合練習(xí)一綜合練習(xí)一vglass- vdesk- vschool-vbox- vbrush- vhen-vmatch- vclass-vbus-veye-vwatch-vglasses vdesks vschoolsvboxes vbrushes vhensvmatches vclassesvbusesveyesvwatches3. 以“輔音字母+y”結(jié)尾的名詞，應(yīng)改y為i，再加-es。加讀加讀z familyfamiliescomediescomedy(喜劇)yyld4. 以“元音字母+y”結(jié)尾的名詞，直接在詞尾加-s構(gòu)成復(fù)數(shù)形式 。boyboysdayd

4、aysoayykeycitiesstrawberrieskeyscity(城市)strawberry(草莓)綜合練習(xí)二綜合練習(xí)二vkey-vglass - veye -vwatch -vcity - vschool - keysvglasses v eyesvwatchesvcities vschoolsvbox -vbaby-vfamily-vbrush-vmatch-vboxes vbabies vfamilies vbrushes vmatches 5. 以f或fe結(jié)尾的名詞，先將f或fe變成v，再加-es構(gòu)成復(fù)數(shù)形式。尾音尾音f改讀改讀vz knifekniveshalfhalves“

5、小偷”(thief)的“妻子”(wife)用“刀子”(knife)和“樹葉”(leaf)把“狼”(wolf)劈成兩“半”(half)。wivesleaveswolveswife(妻子)leaf(樹葉)wolf(狼)roof(屋頂)roofsroof“小偷”(thief)的“妻子”(wife)用“刀子”(knife)和“樹葉”(leaf)把“狼”(wolf)劈成兩“半”(half)。巧記一：按：wife（妻子），knife（小刀），wolf（狼），thief（小偷），shelf（架子），self（自己），life（生命），half（一半），leaf（樹葉）。由self構(gòu)成的復(fù)合詞，其變化與sel

6、f相同（如myselfourselves；yourselfyourselves；himelf，herself，itselfthemselves）。巧記二：練習(xí)四練習(xí)四wife- knife- wolf- thief-shelf- self- life- half- leaf-wives knives wolves thieves shelves selves lives halves leaves6. 以o結(jié)尾的名詞，有的加-s, 有的加-es構(gòu)成復(fù)數(shù)形式。加讀加讀z photophotosheroestomatoeszooszoo(動(dòng)物園)tomato(西紅柿)hero(英雄)以o結(jié)尾的名詞

7、,表示無生命事物的名詞，詞尾加-s,表示有生命事物的名詞，詞尾加-es。 加-es的名詞有: potato, tomato, hero巧記:英雄愛吃英雄愛吃 土豆燉西紅柿土豆燉西紅柿。練習(xí)四練習(xí)四vpiano-zoo-vphoto-vTomatovradio-vpianosvzoosvphotosvtomatoesvradiosvSum up:1.一般情況下,直接在名詞詞尾加-s.2.以s,x,sh,ch結(jié)尾的名詞,在詞尾加-es. 3.以輔音字母加y結(jié)尾的名詞，要變y為i再加-es. 5.以f或 fe結(jié)尾的名詞，先將f或 fe變?yōu)関,再加-es.6.以o結(jié)尾的名詞,表示無生命事物的名詞加-s

8、, 表示有生命事物的名詞加-es。4.以“元音字母+y”結(jié)尾的名詞，直接在詞尾加-s .不規(guī)則名詞復(fù)數(shù)變化一不規(guī)則名詞復(fù)數(shù)變化一deer-sheep-foot- tooth-goose - fish-Chinese-Japanese-deer sheep feet teeth geese fish Chinese Japanese不規(guī)則名詞復(fù)數(shù)變化二不規(guī)則名詞復(fù)數(shù)變化二man-woman-policeman-mouse- child-menwomen policemen mice childrenthis that I you he / she / it am / is thesethosew

9、eyoutheyare 單數(shù)單數(shù) 復(fù)數(shù)復(fù)數(shù)不規(guī)則名詞復(fù)數(shù)變化三不規(guī)則名詞復(fù)數(shù)變化三this- that -I - me - you - he/she/it/- him/her/it-am/is-these thosewe us you they themare綜合練習(xí)三綜合練習(xí)三me- Chinese- tooth- mouse- fish- you- she- watch- him- potato- shelf- child- woman- bag- bus- box- photo- sheep- this- that- I-us Chineseteeth mice fish you the

10、y watches them potatoes shelves children women bags buses boxes photos sheep- these those we句子單數(shù)變復(fù)數(shù)句子單數(shù)變復(fù)數(shù)1. This is a book. 2. That is an eraser.3. It is a red apple. 4. I am a boy.5. He / She is a teacher.6. Whats this ? These are books.Those are erasers.They are red apples.We are boys.They are teachers.Whatre these ?復(fù)數(shù)句子變單數(shù)句子復(fù)數(shù)句子變單數(shù)句子 T