#/4六、單復數(shù)同形的單數(shù)復數(shù)詞義單數(shù)復數(shù)詞義deerdeer鹿sheepsheep綿羊fishfish魚ChineseChinese中國人JapaneseJapanese日本人worksworks工廠七、單詞中有oo的，變oo為ee單數(shù)復數(shù)詞義單數(shù)復數(shù)詞義footfeet腳toothteeth牙齒goosegeese鵝八、以輔音字母y結尾的，變y為ies單數(shù)復數(shù)詞義單數(shù)復數(shù)詞義storystories故事bodybodies身體countrycountries國家librarylibraries圖書館familyfamilies家庭citycities城市九、以元音字母加y結尾的名詞，直接加s單數(shù)復數(shù)詞義單數(shù)復數(shù)詞義boyboys男孩keykeys鑰匙toytoys玩具十、其他特殊的名詞復數(shù)形式單數(shù)復數(shù)詞義單數(shù)復數(shù)詞義childchildren孩子oxoxen牛mousemice老鼠louselice虱子Iwe我俄們youyou你/你們he,she,itthey他她它/他們thisthese這個/這些thatthose那個/那些二、單數(shù)句變復數(shù)句把單數(shù)的句子成復數(shù)的句子很簡單：變法是把能變成復數(shù)的詞變成復數(shù)，但a或an要把去掉。特殊疑問詞、形容詞、國家及地點通常不變。1、人稱代詞由單數(shù)變復數(shù)：主格Iweyouyouhe/she/itthey賓格meusyouyouhim/her/itthem例1Sheisagirl.例2Ilikeher.Welikethem.2、指示代詞由單數(shù)變復數(shù)：單數(shù)this that復數(shù) these those例1Thisisabook.Theseare（some）books.例2Isthatapen？Arethose（any）pens？3、物主代詞由單數(shù)變復數(shù)：1、名詞性物主代詞：mineours，yoursyours，his/hers/itstheirs2、形容詞性物主代詞：myour,youryour,his/her/itstheir例1 Thebookismine. Thebooksareours.例2 Thisisherpen. Thesearetheirpens.4、一般情況下,形容詞性物主代詞在單數(shù)句變復數(shù)句時不變。例1Thisismybook.Thesearemybooks.5、當句中形容詞性物主代詞與句中的主語一致時,形容詞性物主代詞應隨主語人稱的變化而變化,仍要保持一致。例1Helikeshisbike.Theyliketheirbikes.6、連系動詞由單數(shù)變復數(shù)：is/amare例1Iamateacher.Weare（some）eachers.7、a/an表示一個，只能用在單數(shù)名詞前，當單數(shù)句變復數(shù)句時，一定要把a/an去掉，或改為some/any。例1Thisisabook.Theseare（some）books.例2Isthatapen？Arethose（any）pens？8、當名詞作定語或在介詞短語中作介詞賓語充當除賓語以外的其它成分時，該名詞不變。例1Heisaboystudent.Theyare(some)boystudents.(man和woman)除夕卜。例2Sheisawomanworker.Theyare(some)womenworkers.9、單數(shù)句變?yōu)閺蛿?shù)句時，句式不能改變，即單數(shù)句是疑問句時，變?yōu)閺蛿?shù)句時，仍然是疑問句。例1What’sthis？ Whatarethese？例2Shelikeshisbike.Theyliketheirbikes.把下列句子變成復數(shù)Ihaveacar.HeisanAmericanboy.Itisacar.Thisisaneraser.Thatisabackpsck6,I'manEnglishteather7,It'sanewshirt.8,He'saboy.9,She'sasinger.10,What'sthisinEnglish?11、Isthatapen？12、Ilikeher.