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名词变复数规则及专项练习名词变复数规则变化及发音：1、绝大多数的可数名词在词尾加上s；eg：book→books；desk→desks；pen→pens；car→carss遇t读浊辅音[ts]，遇d读清辅音[dz]eg：friend→friends;cat→cats;2.、以s、x、ch、sh结尾的单词，在该词末尾加上-es；读音规则：读[iz]；eg：bus→buses;box→boxes;watch→watchches;dish→dishes3、以辅音字母+y结尾的名词，要把y变为i，再加-es；读音规则：读[z]。eg：fly→flies;baby→babies;元音字母加y结尾的单词直接加s；toy→toys；boy→boys；4、以-f或-fe结尾的名词，要将-f或-fe变为-v，再加es；读音规则：读[vz]；eg：knife→knives；leaf→leaves（树叶）；5、以-o结尾的名词有生命的加-es，无生命的加-s；读音规则：读[z]。有生命：tomato→tomatoes西红柿;potato→potatoes土豆;hero→heroes无生命：radio→radios收音机photo→photos照片名词变复数不规则变化：1.单词内部发生变化：口诀“oo常常变ee，男人女人a变e”eg：foot→feet脚；tooth→teeth牙齿；man→men男人；woman→women女人；2.单复数相同：“羊鱼小鹿无变化，单数复数是一家”eg：sheep→sheep绵羊；fish→fish鱼；deer→deer鹿；3.不规则变化：child→children孩子；mouse→mice老鼠；German→Germans德国人；4“某国人”的复数有三种类型：口诀“中日不变，英法变，其它S加后边”（1）Chinese,Japanese单数复数同形，不需加s；（2）Englishman,Frenchman,Dutchman复数要把man变为men；（3）其他各国人以–an,-ian收尾的均直接加s。如：Americans,Australians澳大利亚人,Germans德国人一、写出下列名词的复数形式1、orange2、class3、box4、bus5、piano6、child7、shelf8、bed9、baby10、family11、toy12、foot13、Japanese14、radio15、photo16、sheep17、tomato18、watch19、woman20、knife二．写出下列各词的复数形式amishesheitthisthatIyou三.将下列句子改为复数句子:1.Heisababy.____________________________2.It’sabigbox.__________________________________3.Thispictureisnice.____________________________________4.Sheisabeautifulwoman._______________________________5.I’magoodchild.___________________________________6.That’sanicewatch._________________________________四.将下列句子改为单数句子：1.Theseareredcoats.________________________________________2.Who’retheboys?They’remystudents.____________________________3.They’rewomenworkershere._____________________________________4.Aretheyplayingbasketballnow?Yes,theyare____________________5.Whatarethey?Theyarebuses.________________________________6.Thosearebeautifulflowers._____________________________________7.Wehavemanyoldpictures.__________________________________be动词用法歌：我用am,你用are，is连接他，她，它。单数名词用is，复数名词全用are。变疑问，往前提，句末问号莫丢弃。变否定，更容易，be后not莫忘记。疑问否定任你变，句首大写莫迟疑。一．（文中填上恰当be动词）。I______agirl.Myname_______Mary.I______inClass2,Grade7.I______12yearsold.Here______myfamilyphoto.Look!These______myparentsandthose_______mygrandparents.Thisboy______mybrother.He________15yearsoldnow.That______mycat,Mimi.It______verylovely.二、在下面的题目中填上恰当的Be动词。1.I________fromAustralia.2.She_______astudent.3.JaneandTom_________myfriends.4.Myparents_______verybusyeveryday.5.I_______atschool.6.He________atschool.7.We________students.8.They________fromChina.9.YangLing________elevenyearsold.10.Where________yourfriends?11.Howold__________youlastyear?12.Whichdog________yours?13.Tenandtwo________twelve.一、用am,is,are填空1)I_____astudent.2)You____adoctor.3)____shefromJinan?4)_____youAmerican?5)It_____acar.6)They____cars7)____yourmotherinChina?8)_____yourfriendsinNewYork?9)What____hername?10)These_____buses.11)Those_____oranges.12)Where_____hermother?13)Howold_____yourteacher?14)Whatclass_____youin?1.I______aboy.______youaboy?No,I_____not.2.Thegirl______Jack’ssister.3.Thedog_______tallandfat.4.Themanwithbigeyes_______ateacher.5.______yourbrotherintheclassroom?6.Where_____yourmother?She______athome.7.How_______yourfather?8.MikeandLiuTao______atschool.9.Whosedress______this?10.Whosesocks______they?11.That______myredskirt.12.Who______I?13.Thejeans______onthedesk.14.Here______ajacketforyou.15.Here______someshirtsforyou.16.Theblackgloves______forSuYang.17.Thispairofgloves______forYangLing....模仿Eg.Thatisabook.否定句：Thatisnotabook.疑问句：Isthatabook？回答：Yes,itis./No,itisn’t.1.Thisisacoat.否定句：______________________________________________________疑问句：______________________________________________________回答：______________________________________________________2.Iamastudent.否定句：______________________________________________________疑问句：______________________________________________________回答：______________________________________________________3.Youareastar.否定句：______________________________________________________疑问句：______________________________________________________回答：______________________________________________________4.Theseareapples否定句：______________________________________________________疑问句：______________________________________________________回答：______________________________________________________5．SheisinClassFour,GradeSeven.否定句：______________________________________________________疑问句：______________________________________________________回答：______________________________________________________