暑假連接三升四語(yǔ)法提優(yōu)2·名詞的復(fù)數(shù)學(xué)問(wèn)精講英語(yǔ)中的可數(shù)名詞有單數(shù)和復(fù)數(shù)之分,復(fù)數(shù)形式的變化規(guī)章如下:一、可數(shù)名詞復(fù)數(shù)的規(guī)章變化1.一般狀況下直接在名詞詞尾加"s"。如:cat→cats,friend→friends。2.以"s、x、ch、sh"結(jié)尾的可數(shù)名詞,應(yīng)當(dāng)在詞尾加"es"。如:bus→buses,box→boxes,watch→watches,brush→brushes。3.以"輔音字母+y"結(jié)尾的可數(shù)名詞,應(yīng)當(dāng)先變"y"為"i"再加"es"。如:library→libraries,baby→babies。4.以"o"結(jié)尾的可數(shù)名詞,有生命的名詞加"es",無(wú)生命的名詞加"s"。如:tomato→tomatoes,photo→photos。5.以"f"或"fe"結(jié)尾的可數(shù)名詞,多數(shù)狀況下應(yīng)當(dāng)變"f"或"fe"為"ves"。如:knife→knives。二、可數(shù)名詞復(fù)數(shù)的不規(guī)章變化1.單復(fù)數(shù)同形。如:sheep→sheep,deer→deer,Chinese→Chinese,Japanese→Japanese,Swiss→Swiss。2.其他形式的不規(guī)章變化。如:man→men,woman→women,child→children。3.以man和woman修飾名詞構(gòu)成的合成詞變復(fù)數(shù)時(shí),兩個(gè)詞都要變化。如:womandoctor→womendoctors。三、s在名詞詞尾的讀音規(guī)章1.在/p/、/t/、/k/、/f/等清輔音后讀作/s/,如:cups,hats,cakes,roofs。2.在/s/、/z/、/?/、/t?/等音素后讀作/?z/,如:glasses,faces,roses。3.在其他狀況下讀作/z/,如:days,cities,knives。4.th在詞尾原本應(yīng)當(dāng)讀作/θ/,加s后則多數(shù)讀作/ǒz/。如:mouth→mouths,path→paths;但是也有不變化的狀況,如:month→months;ninth→ninths;youth→youths。

進(jìn)階訓(xùn)練一、推斷下列每組單詞畫線部分的讀音是（T）否（F）相同。（）1.A.robotsB.thisC.books（）2.A.birdsB.blackboardsC.beds（）3.A.rulersB.rubbersC.parrots（）4.A.cowsB.applesC.pears（）5.A.boysB.cousinsC.chairs二、依據(jù)句意及圖片提示完成句子。1.Look!Wehavethree__________.2.These____________aretooheavy.Wecan'tcarrythem.3.A:Whoarethey?B:They'remyaunt's__________.4.A:Whatwouldyoulike?B:I'dlikesome_________.三、單項(xiàng)選擇。（）1.Look!There_________onthewall.Theyareverybeautiful.A.isapictureB.aresomepictureC.aresomepictures（）2.There_______some_______intheriver.A.is;fishB.are;fishsC.are;fishes（）3.The_____________areinthelibrary.A.teachersB.teacher'sC.teacheres（）4.Ihavetwotoy_______.A.bussB.busesC.bus（）5.Therearefifty__________inourschool.A.womenteacherB.womanteachersC.womenteachers四、用所給內(nèi)容的正確形式填空。1.Icanseefive___________（crayon）.2.Lookatthese____________（man）.3.Iseesome____________（child）.4.A:Aretheseyour_________________（pencilcase）?B:Yes,theyare.5.Therearethree___________________（library）inourschool.五、依據(jù)上下文,用所給詞的適當(dāng)形式填空。I'mLiuTao.Iama______________（boy）.I'mten.Ihavetwo___________（friend）,GaoShanandYangLing.GaoShanisnine.YangLingiseleven.Ihavetwelve__________（crayon）,four___________（pencil）,five__________