名词单复数变化规则及练习题
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英语可数名词变复数的规则(附练习及答案)1、一般情况加s2、以s, sh, ch, x结尾加es,读/iz/。
3、以辅音字母+y结尾,变y为i再加es,读/iz/。
4、以辅音字母+o结尾的,有生命加es;无生命加s。
5、以f,fe结尾,去f,fe变ves。
一. 名词单数变复数的规则变化1. 一般在名词词尾加"-s"(清辅音后读/s/,浊辅音和元音后读/z/)map—maps地图bird—birds鸟orange—oranges 桔子bike—bikes自行车2. 以s, x, ch, sh结尾的名词加"-es"(读/iz/)box—boxes盒子class—classes班级watch—watches手表dish-dishes盘,碟子,餐具3. 辅音字母+o结尾的名词后面加"-es"(中小学阶段不多,单独记忆)tomato—tomatoes西红柿potato—potatoes土豆hero—heroes英雄negro—negroes黑人辅音字母+o结尾的名词后面加"-s"(一般为外来词或者缩写词)photo—photos相片kilo—kilos千克元音字母+o结尾的名词后面加"s" radio—radios收音机zoo—zoos动物园4. 以辅音字母加y结尾的名词,变y为i加"-es " baby—babies婴儿family—families家庭party—parties聚会以元音字母加y结尾的名词直接加"-s" boy—boys男孩toy—toys 玩具5. 以fe或f结尾的名词,把fe或f变为v加"-es"(读/vz/,数量不多,单独记忆)knife—knives小刀wife—wives妻子leaf—leaves树叶直接加-sroof—roofs房顶proof—proofs证据chief—chiefs首领两种都可以handkechief手绢—handkerchiefs / handkerchieves二. 名词单数变复数的不规则变化1. child—children 孩子foot—feet 脚tooth—teeth 牙齿mouse—mice 老鼠man—men 男人woman—women 女人注意:与man 和woman构成的合成词,其复数形式也是-men 和-women,例如:an Englishman—two Englishmen 但German不是合成词,故复数形式为Germans;Bowman是姓,其复数是the Bowmans(鲍曼一家)。
小学英语可数名词变复数形式的规则1一般情况,在词尾加-s.desk---desks 书桌girl---girls 女孩boy---boys 男孩pen---pens 钢笔2以-s,-x,-ch,-sh结尾的词,在词尾加--esbus---buses 公共汽车box--boxes箱子brush--brushes 刷子watch--watches 手表3以辅音字母加-y结尾的词,变y为i,加-es baby-babies 婴儿family--families家庭4以-f或-fe结尾的词,变f或fe为v,再加-esknife---knives刀leaf---leaves树叶5以辅音字母加-o结尾的词,有生命的,在词尾加-es;tomato---tomatoes西红柿potato--potatoes马铃薯没有生命的,在词尾加-sphoto---photos 照片6可数名词变为复数形式的不规则变化如下:foot---feet脚mouse---mice老鼠goose---geese鹅child---children孩子ox---oxen公牛m a n---m e n男人wom a n---wom e n女人Chinese--Chinese中国人deer---deer鹿fish---fish鱼sheep---sheep绵羊<一>、写出下列名词的复数形式1、orange oranges2、class classes3、text texts4、monkey monkeys5、piano pianoes5、child 7.shelf8、bed 9、country10.Family 11、toy 12、foot 13、Japanese 14、radio 15、photo 16、army 17、tomato 18、fox 19、woman 20、knife 22、sheep1)、选择填空1、There on the wall .They are very beautiful.A.are photoesB. are photosC. is a photoD. is photos2. This kind of car made in Shanghai.A. is B .are C .were D .has3. There are four and two in the group.A. Japanese, Germen B Japaneses, GermenC. Japanese,GermanD.Japanese, Germans4. That’a art book.A. anB. aC. the D are5. The boys have got already.A. two breadB. two breadsC. two pieces of breadD. two piece of bread6. The old man wants .A. six boxes of applesB. six boxes of appleC. six box of applesD. six boxs of apples7. There some in the river.A. is ,fishB. are, fishsC. is, fishsD. are ,fish8. There two in the box.A. is watchB. are watchesC. are watchD. is watches9. We should clean twice a day.A .our tooth B. our toothsC.teethD.our teeth10.The _____ meeting room is near the reading room.A.teacherB.teacher’sC.teachers’D.teachers11. In Britain _____ are all painted red.A.letter boxesB.letters boxesC.letter boxD.letters box2)选择填空1.They come from different ______A. countryB. countriesC. a countryD. countrys2.How many ______ do you see in the picture?A. tomatosB. tomatoesC. tomatoD. the tomato3. They are______.A . woman teachers B. women teachersB.women teacher D. woman teacher4. Would you like _______ ,please?A. two glass of waterB. two glasses of waterC.C. two glass of watersD.two glasses of waters5.Most of ______ live in _______.A.Germans, GermanB. German, GermenB.Germen, Germany D. Germans, Germany6.There are some ______ in these _______.A.knifes pencil-boxesB.knives pencils-boxC.knives pencil-boxD.knives pencils-boxes7. ______ like ______ by air.A. Greens, travellingB. The Green, travelingC. The Greens, travelD. The Greens, traveling8.I wonder why ______ are interested in action films (武打片).A.the peopleB. peopleB.peoples D. the peoples9.There is no ______ in the plate.A.applesB. orangesC. riceD. eggs3).填入所给名词的正确形式1.I have two_____ (knife)2.There are many _____ here. (box)3.There are many _____ on the road. (bus)4.A few _____ are drawing on the wall. (boy)5.The _____ are playing football now. (child) 4)写出下列名词的复数形式。
英语名词单数变复数的规则一、绝大多数的可数名词的复数形式,是在该词末尾加上后辍-s。
读音变化:结尾是清辅音读[s],结尾是浊辅音或元音读[z]。
例:friend→friends; cat→cats; style→styles; sport→sports; piece→pieces二、凡是以s、z、x、ch、sh结尾的词,在该词末尾加上后辍-es构成复数。
读音变化:统一加读[iz]。
例:bus→buses; quiz→quizzes; fox→foxes; match→matches; flash→flashes三、以辅音字母+y结尾的名词,将y改变为i,再加-es。
读音变化:加读[z]。
例:candy→candies; daisy→daisies; fairy→fairies; lady→ladies; story→stories四、以-o结尾的名词,如果不是外来词或缩写,就加-es,否则加-s构成复数。
读音变化:加读[z]。
例:tomato→tomatoes; potato→potatoes; torpedo→torpedoes; bingo→bingoes反例:silo→silos; piano→pianos(外来词); photo→photos; macro→macros(缩写词)五、以-f或-fe结尾的名词,多为将-f或-fe改变为-ves,但有例外。
读音变化:尾音[f]改读[vz]。
例:knife→knives; life→lives; leaf→leaves; staff→staves; scarf→scarves反例:roof→roofs六、以-us结尾的名词(多为外来词),通常将-us改变为-i构成复数。
读音变化:尾音[Es]改读[ai],其中[kEs]要改读为[sai],[gEs]要改读为[dVai]。
例:fungus→fungi; abacus→abaci; focus→foci; cactus→cacti; cestus→cesti七、以-is结尾的名词,通常将-is改变为-es。
名词单复数变化规则及练习题可数名词单复数变化练习题 1口语班本周讲解以下语法点: Name: Class: 可数名词的复数形式变化规则:1.一般情况名词后直接加-s.读[z]或读[s]Eg:cat-cats ant-ants2.以s/x/ch/sh 结尾的单词加es.读[iz]Eg:bus-buses fox-foxes3.以辅音字母y结尾的,将y变i加es.Eg:candy-candies story-stories 4.以o结尾的单词,末尾加es,有生命的加-es,无生命的加-s.读[z]Eg:tomato-tomatoes(有生命的) soil-soils(无生命的)5..以f或fe结尾的名词,多将f或fe去掉变成ves.读[vz]Eg:leaf-leaves life-lives6.以ce,se,ze,d,ge等结尾的名词,加-s.读[z]Eg:case-cases orange-oranges不规则名词变化,就需要特殊记忆,等孩子们把上面内容掌握后,再开始继续往下延伸。
可数名词的复数形式练习题一.将下列名词变为复数形式。
map-- boy-- girl-- orange-- bus-- friend--fox-- box-- baby-- fly-- apple-- egg--二(将下列单数变为复数句型或复数变成单数句型。
1.This is a book.__________________2.That is anorange.___________________ 可数名词单复数变化练习题 1可数名词单复数变化练习题 23.What is this,________________4.Those are girls._________________5.These are watermelon.__________________6.Is that a map?________________________7.They are toys.________________________8.The purse is beautiful.______________________9.That is a nice cartoons.________________________ 10.Look!There isa library._______________________可数名词的复数形式变化规则默写:_______________________________________________1.___________________ ___________________________2.___________________________________________ ___3.______________________________________________4.___________________ ___________________________5.___________________________________________ ___6.______________________________________________可数名词单复数变化练习题 2可数名词单复数变化练习题 3请各位爸爸妈妈检查孩子名词单数变复数的变化规则:您的孩子是否已背诵过:A 是 B否 C懒,说了才去做 D 压根没背现在我们学习的内容是与学校考试内容相匹配,通过家长的点评,Angela了解到,有的家长辅导起来也比较困难,所以,一定要按照我的要求去完成,不懂就问,当大多数的孩子都理解了的时候,你也应该做好督促工作~请对孩子以上练习题做以点评(掌握与否、是否需要Angela多加强)____________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ _______________________可数名词单复数变化练习题 3。
英语名词单复数变化规则、代词及其练习⼀、名词1、名词的分类:可数名词和不可数名词。
例:可数不可数teacher hairbook a glass of waterpeople ricefamily happinessclothes a piece of paper2、可数名词的单复数变化规则:(1)⼀般情况下,直接加-s。
例:cake —cakes bag —bags face —faces(2)以s,x,sh,ch结尾的词,加-es。
例:bus —buses watch —watches(3)以辅⾳字母加y结尾的词,改y为i再加-es。
例:baby —babies country —countries family —families(4)部分以f或者fe结尾的词,改f或fe为v,再加-es。
例:knife —knives half —halves(5)以o结尾的词,有⽣命的加-es,⽆⽣命的加-s。
例:zoo —zoos photo —photostomato —tomatoes potato —potatoes(6)不规则变化。
例:man —men woman —women foot —feet child —children mouse —micesheep —sheep Chinese —Chinese⼆、⼈称代词和物主代词1、⼈称代词⼈称格数单数复数主格宾格主格宾格第⼀⼈称I me we us 第⼆⼈称you you you you第三⼈称he himthey them she herit it2、物主代词类别⼈称数单数复数第⼀⼈称第⼆⼈称第三⼈称第⼀⼈称第⼆⼈称第三⼈称我的你的他的她的我们的你们的他(她,它)们的my your his her our your their 形容词性物主代词mine yours his hers ours yours theirs 名词性物主代词练习:1.There ______ on the wall. They are very beautiful.A.are photoesB.are photosC.is a photoD.is photos2.This kind of car _____ made in Shanghai.A.isB.areC.wereD.has3.The _____ of the house were covered with ______.A.roofs; leafsB.roofs; leavesC.rooves; leavesD.rooves; leaves4.That is ____ photo.A.a actress'sB.an actress'sC.a actress'D.an actress'5.The boys have got ______ already.A.two breadC.two pieces of breadD.two piece of bread6.There _____ some ______ in the wood.A.is; deerB.are; deersC.is; deersD.are;deer7.We should clean ______ twice a day.A.our toothB.our toothsC.teethD.our teeth8.Mrs. Jenny gave us ______ on how to learn English well.A.some advicesB.many advicesC.some adviceD.an advice9.—Thanks for giving me ______ I wanted.—Y ou are welcome.A.the informationB.an informationC.the informations/doc/fa13787625.htmlrmation10.Our teacher asked us to be strict with _______ in English study.A.oursB.ourC.ourselvesD.oneselves11._____ work is heavy, but _____ is heavier than ______.A.Our; their; ourB. Our; theirs; oursC. Ours; theirs; ourD. Our; their; ours12.______ is a close friend of ______ aunt's.B. Her; mineC. She; myD. Hers;my13.Jack, good boy! Please pass _____ the glasses. I want to read the newspaper.A.youB.meC.himD.her14.—I can't find my pen. Can you lend me _____?—Sorry, I'm using it myself.A.youB.yourC.yourselfD.yours。
名词单复数练习及答案一、名词单数变复数规则练习在英语中,将名词从单数变成复数通常需要根据不同的规则进行变化。
以下是一些常见的名词单数变复数的规则:1. 一般在名词末尾加s例:book → books2. 以s, x, ch, sh结尾的名词,在末尾加es例:bus → buses3. 以辅音字母+y结尾的名词,将y变成i,再加es例:baby → babies4. 以辅音字母+o结尾的名词,在末尾加es例:potato → potatoes5. 以辅音字母+f或fe结尾的名词,将f或fe变成v,再加es例:leaf → leaves现在,请你根据以上规则将下面的名词单数变成复数形式:1. cat2. house3. toy5. brush二、名词复数变单数规则练习除了将名词从单数变成复数外,有时候也需要将名词从复数变成单数。
以下是一些常见的名词复数变单数的规则:1. 一般在名词末尾去掉s例:dogs → dog2. 以s, x, ch, sh结尾的名词,去掉es例:watches → watch3. 以辅音字母+y结尾的名词,将y变成i,再去掉es例:butterflies → butterfly4. 以辅音字母+o结尾的名词,去掉es例:potatoes → potato5. 以辅音字母+f或fe结尾的名词,将f或fe变成v,再去掉es例:leaves → leaf现在,请你根据以上规则将下面的名词复数变成单数形式:1. books2. houses4. boxes5. brushes三、名词单复数变化答案以下是名词单复数的答案:一、名词单数变复数规则练习答案1. cats2. houses3. toys4. boxes5. brushes二、名词复数变单数规则练习答案1. book2. house3. toy4. box5. brush通过以上练习,希望你能更加熟练地掌握名词单复数的变化规则,提高你的英语写作能力。
可数名词单数变复数规则及练习(含答案)名词可以分为可数名词与不可数名词,其中可数名词具有单复数的形式;而不可数名词没有可数名词复数变化规则如下:1.一般情况下,直接加-s,如:book-books, bag-bags, cat-cats, bed-beds 2.以s. x. sh. ch结尾,加-es,如:bus-buses, box-boxes, watch-watches3.以“辅音字母+y”结尾,变y为i, 再加-es,如:family-families, strawberry-strawberries4.以“f或fe”结尾,变f或fe为v, 再加-es,如:knife-knives5.以o结尾,有生命的加es, 无生命的加s. 如:potato-potatoes. zoo-zoos 6.不规则名词复数:man-men, woman-women, policeman-policemen, policewoman-policewomen, mouse-micechild-children, foot-feet,. tooth-teeth, fish-fish, sheep-sheep people-people, Chinese-Chinese, Japanese-Japanese,当people后加上s时即peoples表示“民族”例如There are 56 peoples in China.以下词为常为不可数名词,他们的复数形式就是他们本身。
water(水) milk(牛奶) tea(茶) rice(米饭) orange(橙汁)juice(果汁)bread (面包)不可数名词的数量关系可借助量词表示,如。
a cup of tea two cups of tea名词复数练习题1).填入所给名词的正确形式1. I have two_____ (knife)2. There are many _____ here. (box)3. There are many _____ on the road. (bus)4. A few ____boys_ are drawing on the wall. (boy)5. The _childen____ are playing football now. (child)2)选择填空1. They come from different ______A. countryB. countriesC. a countryD. countrys2. How many ______ do you see in the picture?A. tomatosB. tomatoesC. tomatoD. the tomato3. There are some ______ in these _______.…pencil-boxes …pencils-box…pencil-box …pencils-boxes4. There is no ______ in the plate.A. applesB. orangesC. riceD. eggs5. _______ are good for our health.A. TomatosB. TomatoesC. Tomato6. I like to eat cake with ______.A. cherriesB. cherry7. ______ and ______ are not friends.A. Foxs…wolfs wolfs …wolves8. Do you want to drink much ?milk9. This is room. It’s very big.and Lucy’s’s and Lucy’s’s and Lucy10. Do you want some for supper?A、a potatoB、potatoesC、potatos11. In autumn,you can see a lot of on the ground.A、leafB、leafsC、leaves12. My sister has two . One is old,the other is new.A、a watchB、watchsC、watcheson the wall .They are very beautiful.A. are photoesB. are photosC. is a photoD. is photos14. That’a art book.A. anB. aC. the D are15. There two in the box.A. is watchB. are watchesC. are watchD. is watches 3)请用括号中名词的复数形式填空1. Look at those _______. (child)2. I can see a __________ standing near the door. (policeman)3. Do you want some ________ for dinner? (potato)4. In autumn, you can see a lot of _______ on the ground.(leaf) 5. He has two is blue , the other is yellow.( box)6. Two ________ live in this building .( family )4)选择正确的词形1. How many (radioes, radios) can you see?2. There are 36 (boys, boies) in my class.3. Look at those (sheeps, sheep).4.I don’t want (a, an) old cup.5. Give me that (box, boxes), please.5)将以下单复数句进行转换1.This is a knife.___________________________________2.That is a tomato.___________________________________3.That child is very good.___________________________________4 .These are mice.___________________________________5.Those are children.___________________________________答案1.knives boxes buses boys children2.BBDCB ACBAB CCBAB3.Children policeman potatoes leaves boxes families4.Radios boys sheep an5.These are knives.Those are tomatoes.Those children are very good.This is rice.That is child.。
名词单复数变化(一)可数名词单复数规则变化一、理论知识:1.一般情况下,名词变复数直接加____________如: book ______ _______ car _______ _______ chair _______ _____friend ______ ______ desk ______ _____ girl ______ ______2.以___________、___________、___________、___________ 结尾的名词加_es 变成复数如: bus ________ ________ watch ________ ________brush ________ ________ box ________ ________bush ________ ________ fox ________ ________3.以f或fe 结尾的名词, 变复数为, 变__________为__________ 再加__________如:wife ______ ______ shelf ______ _______ wolf ______ ______leaf ________ ________ life ________ ________口诀: 小偷的妻子一生中只注意架子上的小刀, 树叶和自己的半匹狼thief wife life shelf knife, leaf, self half wolf 4.以“辅音字母+y”结尾的, 名词, 变复数为: ________________________________如: factory ________ ________ country ________ ________city ________ ________ story ________ ________5.以“原音字母+y”结尾的名词, 变复数为: ________________________________如: boy _______ ______ day ______ ______ toy ______ ______6.以字母“o”结尾的名词, 一般情况下变复数加________________如: photo ______ ______ zoo ______ ______ radio ______ ______7.有些以“o”结尾的名词, 变复数加________________如: potato _______ _______ tomato ________ ________ hero ________ ________Negro ________ ________ echo ________ ________(二)可数名词的不规则变化一、理论知识1.变单词本身字母如:foot ________ ________ tooth ________ ________ goose ________ ________ man ________ ________ woman ________ ________ mouse ________ ________ child ________ ________ ox ________ ________2.单复数同行sheep ________ ________ deer ________ ________ fish ________ ________ Chinese________ ________ Japanese ________ ________ Swiss ________ ________ 口诀: 中国人, 日本人还有瑞士人都喜欢吃羊, 鹿, 鱼Chinese Japanese Swiss sheep deer fish4.国人的变化(1) 中、日不变Chinese___________ ___________ Japanese___________ ___________(2) 英、法a 变eEnglishman ___________ ___________ Frenchman ___________ ___________ (3) 其他一律加sGerman ___________ ___________ American ___________ ___________Australian ___________ ___________ Canadian ___________ ___________ (口诀: 中日不变, 英法变, 其他一律加s)5.以下单词是集体名词, 本身就只有复数的形式people 人们glasses 眼镜clothes 衣服police 警察trousers 裤子scissors 剪刀family 家人thanks 感谢compass 圆规shoes 鞋子socks 袜子写出下列名词的复数形式, 并写出各词的汉语意思watch ______ ______boy______ ______shoe______ ______student ______ ______ girl ______ ______ leg ______ ______ cup ______ ______ train ______ ______ shelf ______ ______ fox ______ ______ brush ______ ______ class ______ ______ map ______ ______ roof ______ ______ tool ______ ______ tree ______ ______ potato ______ ______ piano ______ ______ holiday ______ ______ Negro ______ ______ chief ______ ______ mouth ______ ______ piece ______ ______ year ______ ______ way ______ ______ body ______ ______ banana ______ ______ watch ______ ______ factory ______ ______ library ______ ______ chair ______ ______ tomato ______ ______ brush ______ ______ monkey ______ ______ dress ______ ______ match ______ ______ orange ______ ______ wife ______ ______ belief ______ ______ party ______ ______ Chinese ______ ______ hero ______ ______ park ______ ______ railway ______ ______ word ______ ______ reef ______ ______ Frenchman ______ ______ sheep ______ ______ tooth ______ ______ photo ______ ______ university ______ ______ brief ______ ______ glass ______ ______ teacher ______ ______ hand ______ ______ foot ______ ______ mouse ______ ______ shirt ______ ______ apple ______ ______ deer ______ ______German ______ ______ Englishman ______ ______ fish ______ ______ Negro ______ ______ family ______ ______ skirt ______ ______ piano ______ ______ month ______ ______ serf ______ ______ giraffe ______ ______ radio ______ ______ chimney ______ ______ train ______ ______ station ______ ______ house ______ ______ classroom ______ ______ office ______ ______ monkey ______ ______ baby ______ ______ leaf ______ ______ kite ______ ______ knife ______ ______ proof ______ ______ reef ______ ______ story ______ ______ thief ______ ______ brother ______ ______名词单复数变化练习用所给词的适当形式填空1.My parents are all ___________ (teacher).2.The desk has four ___________ (leg).3.There are many ___________ (sheep) on the hill.4.A dog has four ___________ (foot).5.There are twelve ___________ (month) in a year and seven ___________ (day) in a week.6.How many ___________ (tomato) are there in the fridge?7.There are three ___________ (apple) and two ___________ (egg) on the plate.8.These black ___________ (mouse) look terrible.9.There are four ___________ (person) in my family.10.We are ___________ (Chinese).They are ___________ (American).11.The little boy has four ___________ (tooth).12.Lily and Lucy are ___________ (Japanese).13.Why do you bring two ___________ (knife) with you?14.Jim and Mary are from different ___________ (country), they are four ___________ (class) from Monday to Friday.15.There are many ___________ (tree) on either side of the street.16.There are fifty ___________ (state) in the USA.17.Can you another two ___________ (cake)?18.How many ___________ (family) are there in the village?19.Seven ___________ (student) are taking ___________ (photo) over there.20.I have four ___________ (watch).21.The ___________ (German) are going to Paris.22.These ___________ (child) are ___________ (Englishman).23.Shanghai is one of the biggest ___________ (city) in China.24.The ___________ (leaf) turn yellow in autumn.25.There are four ___________ (season) in a year and three ___________ (month) in a season.26.There are thirty ___________ (boy) and twenty ___________ (girl) in the class.27.I have one _________ (mouth), two ________ (eye), and two _________ (foot).28.The ___________ (policeman) are in the station.29.We took many ___________ (photo) in the park.30.There are not many ___________ (fish) in the river.31.I want to be a ___________ (scientist) in the future.32.We have many ___________ (book) on the desk.33.This pair of ___________ (glass) is too small for me.34.Please give my best ___________ (wish) for your parents.35.These ___________ (photo) are old.36.Those ___________ (child) are lovely.37.The ___________ (hero) are ___________ (German).38.There are two ___________ (factory) near my home and two thirds of the workers are ___________ (Chinese).39.The ten ___________ (question) are hard to work out.40.There are twenty-four ___________ (hour) in a day.41.The two ___________ (man) are ___________ (Englishman).42.There are many ___________ (sheep) and ___________ (deer) on the grass.43.Here are three ___________ (goose).There are many ___________ (ox).44.I am thirsty.Please give me four ___________ (glass) of drink.45.There are a lot of ___________ (bus) in the street.46.My parents have two ___________ (child).47.The old man’s sisters are ___________ (Australian).48.The little girl has two ___________ (pen).49.I received two ___________ (letter) yesterday.50.They have many ___________ (child), but none of them likes to wash ___________ (dish).51.Six of them are ___________ (worker), but Mr.Liu and Mr.Li are ___________ (postman).52.How many ___________ (radio) are there in the room?53.This passage has four ___________ (part).54.The two ___________ (boy) are my ___________ (friend).55.These ___________ (student) are our ___________ (classmate).最好的friend 朋友from 来自question 问题补充词汇:bestbig 大的small 小的police 警察fifty 五十Monday 星期一Friday 星期五side 边either 两者之一letter 信knife 小刀twelve 十二person 人future 将来scientist 科学家work out 算出lovely 可爱的postman 邮递员part 部分radio 收音机classmate 同学parents 父母亲bring 带来station 车站factory 工厂leg 腿different 不同的leaf 树叶third 第三hill 小山country 国家yellow 黄色的grass 草地these 这些cake 蛋糕autumn 秋天thirsty 渴的those 那些state 州season 季节receive 收到fridge 冰箱village 村庄thirty 三十yesterday 昨天。
名词单复数变化规则练习在英语学习中,名词的单复数变化是一个重要的语法知识点。
掌握好名词单复数的变化规则,对于正确使用英语、准确表达意思至关重要。
下面我们就来详细地学习和练习一下名词单复数的变化规则。
一、一般规则1、大多数名词在词尾直接加“s”比如:book books,pen pens,car cars 。
这是最常见也最容易理解的一种变化方式。
2、以“s”“x”“ch”“sh”结尾的名词,在词尾加“es”例如:bus buses,box boxes,watch watches,brush brushes 。
需要注意的是,这种变化是为了保持读音的顺畅。
3、以“辅音字母+y”结尾的名词,把“y”变为“i”,再加“es”像:city cities,baby babies,factory factories 。
但如果“y”前是元音字母,则直接加“s”,如:boy boys,day days 。
4、以“f”或“fe”结尾的名词,把“f”或“fe”变为“v”,再加“es”常见的有:leaf leaves,knife knives,wife wives 。
不过也有一些例外,如:roof roofs 。
二、不规则变化1、单复数同形有些名词的单复数形式是相同的,比如:sheep sheep,deer deer,fish fish (表示鱼的种类时复数为 fishes )。
2、改变元音字母例如:man men,woman women,foot feet,tooth teeth 。
3、其他特殊变化child children,mouse mice 。
三、练习题目为了更好地掌握名词单复数的变化规则,我们来做一些练习题。
(一)写出下列名词的复数形式1、 bag ______2、 class ______3、 glass ______4、 fox ______5、 dish ______6、 baby ______7、 city ______8、 story ______9、 leaf ______10、 knife ______(二)用所给名词的正确形式填空1、 There are five ______ (box) on the table2、 The ______ (man) are working hard3、 I have two ______ (watch)4、 How many ______ (child) are there in the room?5、 She has three ______ (foot)四、答案解析(一)1、 bags2、 classes3、 glasses4、 foxes5、 dishes6、 babies7、 cities8、 stories9、 leaves10、 knives(二)1、 boxes2、 men3、 watches4、 children5、 feet通过以上的学习和练习,相信大家对名词单复数的变化规则有了更深入的理解和掌握。
可数名词单数变复数规则及练习(含答案)欧阳学文名词可以分为可数名词与不可数名词,其中可数名词具有单复数的形式;而不可数名词没有可数名词复数变化规则如下:1.一般情况下,直接加s,如:bookbooks, bagbags, catcats, bedbeds2.以s. x. sh. ch结尾,加es,如:busbuses, boxboxes, watchwatches3.以“辅音字母+y”结尾,变y为i, 再加es,如:familyfamilies, strawberrystrawberries4.以“f或fe”结尾,变f或fe为v, 再加es,如:knifeknives5. 以o结尾,有生命的加es, 无生命的加s. 如:potatopotatoes. zoozoos6.不规则名词复数:manmen, womanwomen, policemanpolicemen, policewomanpolicewomen, mousemicechildchildren, footfeet,. toothteeth, fishfish, sheepsheep peoplepeople, ChineseChinese, JapaneseJapanese,当people后加上s时即peoples表示“民族”例如There are 56 peoples in China.以下词为常为不可数名词,他们的复数形式就是他们本身。
water(水) milk(牛奶) tea(茶) rice(米饭) orange(橙汁)juice (果汁)bread(面包)不可数名词的数量关系可借助量词表示,如。
a cup of tea two cups of tea名词复数练习题1).填入所给名词的正确形式1. I have two_____ (knife)2. There are many _____ here. (box)3. There are many _____ on the road. (bus)4. A few ____boys_ are drawing on the wall. (boy)5. The _childen____ are playing football now. (child) 2)选择填空1. They come from different ______A. countryB. countriesC. a countryD. countrys2. How many ______ do you see in the picture?A. tomatosB. tomatoesC. tomatoD. the tomato3. There are some ______ in these _______.A.knifes…pencilboxesB.knives…pencilsboxC.knive s…pencilboxD.knives…pencilsboxes4. There is no ______ in the plate.A. applesB. orangesC. riceD. eggs5. _______ are good for our health.A. TomatosB. TomatoesC. Tomato6. I like to eat cake with ______.A. cherriesB. cherryC.cherrys7. ______ and ______ are not friends.A. Foxs…wolfsB.Foxes wolfsC.Foxes…wolves8. Do you want to drink much ?A.a milkkks9. This is room. It’s very big.A.Lily and Lucy’sB.Lily’s and Lucy’sC.Lily’s and Lucy10. Do you want some for supper?A、a potatoB、potatoesC、potatos11. In autumn,you can see a lot of on the ground.A、leafB、leafsC、leaves12. My sister has two . One is old,the other is new.A、a watchB、watchsC、watches13.There on the wall .They are very beautiful.A. are photoesB. are photosC. is a photoD. is photos14. That’a art book.A. anB. aC. the D are15. There two in the box.A. is watchB. are watchesC. are watchD. is watches3)请用括号中名词的复数形式填空1. Look at those _______. (child)2. I can see a __________ standing near the door. (policeman) 3. Do you want some ________ for dinner? (potato)4. In autumn, you can see a lot of _______ on the ground.(leaf) 5. He has two _______.One is blue , the other is yellow.( box) 6. Two ________ live in this building .( family )4)选择正确的词形1. How many (radioes, radios) can you see?2. There are 36 (boys, boies) in my class.3. Look at those (sheeps, sheep).4.I don’t want (a, an) old cup.5. Give me that (box, boxes), please.5)将以下单复数句进行转换1.This is a knife.___________________________________ 2.That is a tomato.___________________________________ 3.That child is very good.___________________________________4 .These are mice.___________________________________ 5.Those are children.___________________________________答案1.knives boxes buses boys children2.BBDCB ACBAB CCBAB3.Children policeman potatoes leaves boxes families4.Radios boys sheep an5.These are knives.Those are tomatoes.Those children are very good.This is rice.That is child.。
可数名词单数变复数规则及练习(含答案)名词可以分为可数名词与不可数名词,其中可数名词具有单复数的形式;而不可数名词没有可数名词复数变化规则如下:1.一般情况下,直接加-s ,如:book-books, bag-bags, cat-cats, bed-beds2.以s. x. sh. ch 结尾,加-es ,如:bus-buses, box-boxes, watch-watches3•以“辅音字母+y”结尾,变y为i,再加-es,如:family-families, strawberry-strawberries4. 以“f或fe ”结尾,变f或fe为v,再加-es,如:knife-knives5. 以o 结尾,有生命的加es, 无生命的加s. 如:potato-potatoes. zoo-zoos6. 不规则名词复数:man-men, woman-women, policeman-policemen, policewoman-policewomen, mouse-micechild-children, foot-feet,. tooth-teeth, fish-fish, sheep-sheeppeople-people, Chinese-Chinese, Japanese-Japanese, 当people 后加上s 时即peoples 表示“民族”例如There are 56 peoples in China.以下词为常为不可数名词,他们的复数形式就是他们本身。
water(水)milk(牛奶)tea(茶)rice(米饭)orange (橙汁)juice (果汁)bread (面包)不可数名词的数量关系可借助量词表示,如。
a cup of tea two cups of tea名词复数练习题1) . 填入所给名词的正确形式1. I have two ____ (knife)2. There are many ____ here. (box)3. There are many ____ on the road. (bus)4. A few boys_ are draw ing on the wall. (boy)5. The _childen _____ are playi ng football now. (child)2) 选择填空1. They come from differe nt ____A. countryB. coun triesC. a countryD. coun trys2. How many _____ do you see in the picture?A. tomatosB. tomatoesC. tomatoD. the tomato3. There are some _____ in these ______ .A.knifes …pencil -boxesB.knives …pencils -boxC.knives …pencil -boxD.knives …pencils -boxes4. There is no _____ in the plate.A. applesB. oran gesC. riceD. eggs5. _______ are good for our health.A. TomatosB. TomatoesC. Tomato6. I like to eat cake with7. ______ a nd ______ a re not frien ds.A. Foxs …wolfsB.Foxes wolfsC.Foxes…wolves8. Do you want to drink muchA. cherriesB. cherryC.cherrysA.a milkkks9. This is room. It ' s very bigA. Lily and Lucy ' s Lucy'sB. Lily ' s andC. Lily ' s and Lucy10. Do you want some for supper?on the wall .They are very beautiful.3)请用括号中名词的复数形式填空1. How many (radioes, radios) can you see?2. There are 36 (boys, boies) in my class.3. Look at those (sheeps, sheep).4. I don ' t want (a, an) old cup.5. Give me that (box, boxes), please.5)将以下单复数句进行转换A. are photoesB. are photosC. is a photoD. is photos 14. That ' a art book.A. anB. aC. theD are 15. There two in the box.A. is watchB. are watchesC. are watchD. is watches A a potato B 、potatoes C 、potatos11. In autu mn ,you can see a lot ofon the ground. A 、leaf B leafs C 、leaves12. Mysister has two .Oneis old , theother is new. A 、a watch B 、watchs C 、watches13.There Look at those .(child)2. I can see a sta nding n ear the door. (policema n)3. Do you want some for dinner? (potato)4. In autu mn, you can see a lot of on the groun d.(leaf)5. He has two .One is blue , the other is yellow.( box)6. Two live in this building .( family )4) 选择正确的词形1.This is a knife.2.That is a tomato.3.That child is very good.4 .These are mice.5.Those are children.答案1. knives boxes buses boys children2. BBDCB ACBAB CCBAB3. Children policeman potatoes leaves boxesfamilies4. Radios boys sheep an5. These are knives.Those are tomatoes.Those children are very good.This is rice.That is child.。
可数名词单数变复数规则及练习(含答案)名词可以分为可数名词与不可数名词,其中可数名词具有单复数的形式;而不可数名词没有可数名词复数变化规则如下:1.一般情况下,直接加-s,如:book-books, bag-bags, cat-cats, bed-beds 2.以s. x. sh. ch结尾,加-es,如:bus-buses, box-boxes, watch-watches3.以“辅音字母+y”结尾,变y为i, 再加-es,如:family-families, strawberry-strawberries4.以“f或fe”结尾,变f或fe为v, 再加-es,如:knife-knives5.以o结尾,有生命的加es, 无生命的加s. 如:potato-potatoes. zoo-zoos 6.不规则名词复数:man-men, woman-women, policeman-policemen, policewoman-policewomen, mouse-micechild-children, foot-feet,. tooth-teeth, fish-fish, sheep-sheep people-people, Chinese-Chinese, Japanese-Japanese,当people后加上s时即peoples表示“民族”例如There are 56 peoples in China.以下词为常为不可数名词,他们的复数形式就是他们本身。
water(水) milk(牛奶) tea(茶) rice(米饭) orange(橙汁)juice(果汁)bread (面包)不可数名词的数量关系可借助量词表示,如。
a cup of tea two cups of tea名词复数练习题1).填入所给名词的正确形式1. I have two_____ (knife)2. There are many _____ here. (box)3. There are many _____ on the road. (bus)4. A few ____boys_ are drawing on the wall. (boy)5. The _childen____ are playing football now. (child)2)选择填空1. They come from different ______A. countryB. countriesC. a countryD. countrys2. How many ______ do you see in the picture?A. tomatosB. tomatoesC. tomatoD. the tomato3. There are some ______ in these _______.A.knifes…pencil-boxesB.knives…pencils-boxC.knives…pencil-boxD.knives…pencils-boxes4. There is no ______ in the plate.A. applesB. orangesC. riceD. eggs5. _______ are good for our health.A. TomatosB. TomatoesC. Tomato6. I like to eat cake with ______.A. cherriesB. cherryC.cherrys7. ______ and ______ are not friends.A. Foxs…wolfsB.Foxes wolfsC.Foxes…wolves8. Do you want to drink much ?A.a milkkks9. This is room. It’s very big.A.Lily and Lucy’sB.Lily’s andLucy’s C.Lily’s and Lucy10. Do you want some for supper?A、a potatoB、potatoesC、potatos11. In autumn,you can see a lot of on the ground.A、leafB、leafsC、leaves12. My sister has two . One is old,the other is new.A、a watchB、watchsC、watches13.There on the wall .They are very beautiful.A. are photoesB. are photosC. is a photoD. is photos14. That’a art book.A. anB. aC. the D are15. There two in the box.A. is watchB. are watchesC. are watchD. is watches 3)请用括号中名词的复数形式填空1. Look at those _______. (child)2. I can see a __________ standing near the door. (policeman)3. Do you want some ________ for dinner? (potato)4. In autumn, you can see a lot of _______ on the ground.(leaf) 5. He has two _______.One is blue , the other is yellow.( box)6. Two ________ live in this building .( family )4)选择正确的词形1. How many (radioes, radios) can you see?2. There are 36 (boys, boies) in my class.3. Look at those (sheeps, sheep).4.I don’t want (a, an) old cup.5. Give me that (box, boxes), please.5)将以下单复数句进行转换1.This is a knife.___________________________________2.That is a tomato.___________________________________3.That child is very good.___________________________________4 .These are mice.___________________________________5.Those are children.___________________________________答案1.knives boxes buses boys children2.BBDCB ACBAB CCBAB3.Children policeman potatoes leaves boxes families4.Radios boys sheep an5.These are knives.Those are tomatoes.Those children are very good.This is rice.That is child.。
可数名词和不可数名词复数变化规则英语中的名词指的是一种抽象的或者具体的事物,它有可数和不可数之分。
所谓可数名词指的就是在数量上可以计数,可以数出数量的事物;所谓不可数名词是指不能以数目来计算,不可以分成个体的概念、状态、品质、感情或表示物质材料的东西。
一、可数名词在它之前可以加上冠词a/an (以元音字母a,e,i,o,u开头的字母前冠词用an)。
而不可数名词前面是不可以直接加冠词的。
可数名词复数变化规律如下:a. 一般情况下,直接力卩-s,女口:book-books, bag-bags, cat-cats, bed-beds ;读音:清辅音后读[s],浊辅音和元音后读[z]。
b .以s,x,ch,sh 结尾,力卩-es,女口:bus-buses, box-boxes, brush-brushes, watch-watches ; 读音:[iz]。
c.以辅音字母+y”结尾,变y为i,再加-es,女口:family-families, baby-babies 婴儿;读音:[z]。
以元音字母+y”结尾,直接力卩-s,女口:mon key-monkeys,toy-toys ; 读音:[s]。
d .以“或fe ”结尾,变f 或fe 为v,再加-es,女口:knife-knives, leaf—leaves 树叶;读音:[z]。
e .以“ o结尾的词,分两种情况1)有生命的力卩-es 读音:[z]女口:mango-mangoes ,tomato-tomatoes ,hero-heroes 2)无生命的加-s 读音:[z]女口:photo-photos ,radio-radiosf. 以ce,se,ze,de,ge 结尾,力卩-s,女口:exercise-exercises,读音:[z]。
g. 不规则名词:小老鼠爬灯台,偷油吃下不来。
男人当警察,保护妇女跟儿童;英国人的牙咬了法国人的脚;养了一头日本羊,送给了中国人;养了一头鹿跟鹅,卖给了瑞士人man-men, woma n-wome n, policema n-policeme n, policewoman-policewome n,goose---geese 鹅,mouse(老鼠)-mice, child-children, foot-feet, tooth-teeth, ox-oxen(公牛)h. 除此之外,还有一部分名词单复数同形,女口:fish 鱼,deer鹿,sheep绵羊,news新闻,goods 商品,fish,people 人,human 人类i. 有一些名词则只有复数形式:trousers裤子,pants裤子,shorts短裤glasses眼镜,compasses 圆规,scales 天平,pliers 钳子,clips 剪子j. 某国人”的复数有三种类型:(1)Ch in ese, Japa nese, Swiss 三国人单数复数同形,不需加s ;(2)Englishman, Frenchman, Dutchman 复数要把man 变为men ;注意:German的复数是Germa ns,它的man不是词根,而是由Germa ny演变过来的。
一、名词定义(Nouns)是词性,实词的一种,是指待人、物、事、时、地、情感、概念等实体或抽象事物的词。
名词可以独立成句。
二、名词分类(一)名词根据内容可分为专有名词(Proper Noum)和普通名词(Common Noun)。
(二)名词根据结构可分为单一名词和合成名词,合成名词由两个或两个以上的单一名词构成。
(三)名词分为可数名词(Countable Noum)和不可数名词(Uncountable Noum)。
(一)专有名词与普通名词1)专有名词主要指人名、地名、机构名等一些特定对象的专有名称,多为单故意义.且首字母要大写。
如:人名:Tom,Brown,Einstein称呼、头衍:Mom,Uncle,Mr.Smith,President Roosevelt,Queen Elizabeth地名:Asia,Europe,New York,London,the Alps,the Yellow River月份、星期、节日:July,Monday,Christmas,Thanksgiving(注意:春夏秋冬不是专有名词)。
书籍、报刊、电影、诗歌:Pride and Prejudice,Newsweek,Time,Avatar宗教、哲学:Christianity,Islam,Buddhism,Confucianism,Taoism国家、民族、语言:Chian,Chinese,England,Englishman,English,the United state of American,Amrican English机构、会议、活动:the United Nations(联合国),the European Union(欧盟).the World Expo(世博会).the World Cup(世界杯)公司、品牌:Microsoft,googIe,Nokia,Safeguard(舒肤仕)2)普通名词分为个体名词(Individual Noum)、集体名词(Collective Noum)、物质名词(MassNoum)和抽象名词(Abstract Noum)。
名词的复数知识点:英语中的可数名词有单数和复数之分,复数形式的变化规则如下:一、可数名词复数的规则变化。
1.一般情况下直接在名词词尾加“s”。
如: cat →cats, friend →friends。
2.以“s、x、ch、sh”结尾的可数名词,应该在词尾加“es”。
如: bus →buses, box →boxes, watch →watches, brush →brushes。
3.以“辅音字母+ y”结尾的可数名词,应该先变“y”为“i”再加“es”。
如:library →libraries, baby →babies。
4.以“o”结尾的可数名词,有生命的名词加“es”,无生命的名词加“s”。
如:tomato →tomatoes, photo →photos。
5.以“f”或“fe”结尾的可数名词,多数情况下应该变“f”或“fe”为“ves”。
如:knife →knives。
二、可数名词复数的不规则变化。
1.单复数同形。
如: sheep →sheep, deer →deer, Japanese →Japanese, Swiss →Swiss。
2.其他形式的不规则变化。
如:man →men, woman →women, child →children。
3.以 man 和 woman 修饰名词构成的合成词变复数时,两个词都要变化。
如: woman doctor →women doctors。
三、s 在名词词尾的读音规则。
1.在/p/、/t/、/k/、/f/等清辅音后读作/s/,如: cups, hats, cakes, roofs。
2.在/s/、/z/、/ ʃ /、/ tʃ /等音素后读作/ɪz/,如: glasses, faces, roses。
3.在其他情况下读作/z/,如:days, cities, knives。
4.th在词尾原本应该读作/θ/,加 s后则多数读作/ǒz/。
如: mouth→ mouths, path →paths;但是也有不变化的情况,如: month→months;ninth→ninths; youth →youths。
名词单复数变化及练习题名词的单复数名词 (Nouns)是词性的⼀种,也是实词的⼀种,是指待⼈、物、事、时、地、情感、概念等实体或抽象事物的词。
专有名词和普通名词1.专有名词表⽰具体的⼈,事物,地点,团体或机构的专有名称(第⼀个字母要⼤写)China 中国Asia 亚洲Beijing北京the People’s Republic of China中华⼈民共和国专有名词如果是含有普通名词的短语,则必须使⽤定冠词the。
如:the Great Wall(长城)姓⽒名如果采⽤复数形式,则表⽰该姓⽒⼀家⼈(复数含义),如:the Greens( 格林⼀家⼈)。
2.普通名词:表⽰某些⼈,某类事物,某种物质或抽象概念的名称。
(例如:teacher ⽼师tea 茶 reform 改⾰)普通名词⼜可进⼀步分为四类1. 个体名词(Individual Nouns):表⽰单个的⼈和事物。
(car 汽车 room 房间 fan 风扇 picture 照⽚)2. 集体名词(Collective Nouns): 表⽰⼀群⼈或⼀些事物的名称。
( people ⼈们 family 家庭 army 军队 government政府 group 集团 )3. 物质名词(Material Nouns):表⽰物质或不具备确定形状和⼤⼩的个体的物质。
( fire ⽕ steel 钢 air 空⽓ water ⽔ milk⽜奶 )4. 抽象名词(Abstract Nouns):表⽰动作,状态,品质或其他抽象概念。
( labour 劳动 health 健康 life ⽣活 friendship友情 patience耐⼒ )分类⼆名词⼜可分为可数名词(Countable Nouns)和不可数名词(Uncountable Nouns)不可数名词:不可数名词是指不能以数⽬来计算,不可以分成个体的概念、状态、品质、感情或表⽰物质材料的东西;它⼀般没有复数形式,只有单数形式,它的前⾯不能⽤不定冠词a / an。
名词单数变复数规则规则变化1)一般情况下加-s如book--books(书)desk--desks(书桌)2)以s ,x ,ch , sh结尾加-es如box--boxes(盒子)bus--buses(公共汽车)brush--brushes watch--watches注意①以th 结尾加-s, month--months②stomach--stomachs3)以辅音字母+结尾,变y为i再加- es。
如city--cities(城市) country--countries(国家)baby-babies婴儿family--families家庭注意以元音+y,直接加s。
如:day--days(天),boy--boys(男孩)4)以f或fe结尾,复数变f或fe 为v再加-es如knife-knives(书) , half-halves(一半) leaf---leaves树叶(thief ,wife ,life ,shelf ,knife ,leaf ,self ,half ,wolf)注意①有少数词后直接加s,如roof-roofs (屋顶)5)以o结尾分2类(1)o结尾的加-es如tomato-tomatoes(西红杮) potato-potatoes(土豆) hero-heroes(英雄)(2) o结尾名词的加-s如piano-pianos (钢琴), zoo-zoos(动物园)photo-photos (照片), kangaroo-kangaroos(袋鼠)kilo-kilos(千克)注意zero 两种方式都可:zero-zeros或zeroes(零)不规则变化1) 元音字母发变化。
如man--men(男人) ,woman--women(妇女)tooth--teeth(牙齿) ,foot--feet(脚)mouse--mice(老鼠) ,policeman--policemen(警察)policewoman--policewomen(女警察)2) 词尾发生变化。
Name: Class:
可数名词的复数形式变化规则:
1.一般情况名词后直接加-s.读[z]或读[s]
Eg:cat-cats ant-ants
2.以s/x/ch/sh 结尾的单词加es.读[iz]
Eg:bus-buses fox-foxes
3.以辅音字母y结尾的,将y变i加es.
Eg:candy-candies story-stories
4.以o结尾的单词,末尾加es,有生命的加-es,无生命的加-s.读[z]
Eg:tomato-tomatoes(有生命的)soil-soils(无生命的)
5..以f或fe结尾的名词,多将f或fe去掉变成ves.读[vz]
Eg:leaf-leaves life-lives
6.以ce,se,ze,d,ge等结尾的名词,加-s.读[z]
Eg:case-cases orange-oranges
不规则名词变化,就需要特殊记忆,等孩子们把上面内容掌握后,再开始继续往下延伸。
可数名词的复数形式练习题
一.将下列名词变为复数形式。
map-- boy-- girl-- orange-- bus-- friend-- fox-- box-- baby-- fly-- apple-- egg--
二.将下列单数变为复数句型或复数变成单数句型。
1.This is a book.__________________
2.That is an orange.___________________
3.What is this?________________
4.Those are girls._________________
5.These are watermelon.__________________
6.Is that a map?________________________
7.They are toys.________________________
8.The purse is beautiful.______________________
9.That is a nice cartoons.________________________
10.Look!There is a library._______________________
可数名词的复数形式变化规则默写:
_______________________________________________1.______________ ________________________________2._____________________________ _________________3.____________________________________________ __4.______________________________________________5.___________ ___________________________________6.__________________________ ____________________
请各位爸爸妈妈检查孩子名词单数变复数的变化规则:
您的孩子是否已背诵过:A 是B否C懒,说了才去做D 压根没背现在我们学习的内容是与学校考试内容相匹配,通过家长的点评,Angela了解到,有的家长辅导起来也比较困难,所以,一定要按照我的要求去完成,不懂就问,当大多数的孩子都理解了的时候,你也应该做好督促工作!请对孩子以上练习题做以点评(掌握与否、是否需要Angela 多加强)
______________________________________________________________ ______________________________________________________________ ______________________________________________________________ _________________________________________________。