新概念英语第一册Lesson 17-18 练习题

新概念英语第一册Lesson17-18练习题各位学习者，大家好。经过对Lesson17和Lesson18的学习，我们对名词的复数形式、以及如何询问和描述人物的职业有了初步的认识。这两课的核心在于掌握名词单复数的变化规则，特别是一些常见的不规则变化，并能运用相关的句型进行简单的交流。为了更好地检验大家的学习效果，以下设计了一些练习题，希望能帮助大家巩固所学，查漏补缺。一、复习要点回顾在开始练习之前，让我们简要回顾一下这两课的关键知识点：1.名词复数(PluralNouns):*规则变化：大部分名词变复数时在词尾加`-s`，如`book->books`。*以`-s`,`-x`,`-ch`,`-sh`结尾的名词加`-es`，如`bus->buses`,`box->boxes`。*不规则变化：如`man->men`,`woman->women`,`policeman->policemen`,`policewoman->policewomen`,`child->children`(虽然本课可能未重点涉及，但需留意)。*一些职业名词本身已包含复数含义或常用复数形式，如`people`(人们)。3.关键句型:*`Thisis.../Thatis...`(单数)*`Theseare.../Thoseare...`(复数)*`Arethese/those...?`(一般疑问句)*`Whataretheirjobs?Theyare...`二、练习题设计Exercise1:写出下列名词的复数形式(Writethepluralformofthefollowingnouns)请认真思考每个名词的复数变化规则，尤其注意不规则变化。1.man->__________2.woman->__________3.employee->__________4.assistant->__________5.engineer->__________6.policeman->__________7.policewoman->__________8.taxidriver->__________(提示：只需将主体名词变复数)10.postman->__________11.nurse->__________12.mechanic->__________Exercise2:根据图片或提示选择正确的职业名称(Choosethecorrectjobtitleaccordingtothepictureorhint)(说明：此处虽无图片，但请根据日常认知或课文内容选择。)1.Heworksinahospitalandhelpsdoctors.Heisa__________.a)nurseb)mechanicc)milkman2.Shefliesplanes.Sheisan__________.b)officeassistanta)engineersb)salesrepsc)policemen4.Hefixescars.Heisa__________.a)postmanb)mechanicc)policemana)housewifeb)nurseExercise3:用适当的代词(this/that/these/those)和be动词(is/are)填空(Fillintheblankswithappropriatepronounsand'be'verbs)1.__________isanemployee.2.__________areengineers.3.__________isanewoffice.4.__________aremybooks.5.—Who__________thatwoman?—She__________apolicewoman.6.—What__________these?—They__________apples.Exercise4:将下列单数句改为复数句或将复数句改为单数句(Changethefollowingsentencesfromsingulartopluralorpluraltosingular)1.Thisisapoliceman.->__________are__________.2.Thatisanurse.->__________are__________.3.Theseareengineers.->__________isan__________.4.Thosearesalesreps.->__________isa__________.5.Thisisahard-workingemployee.->__________arehard-working__________.Readthefollowingshortpassageandanswerthequestions.Thisisouroffice.Therearemanyemployeeshere.Look!ThatmanisMr.Smith.Heisanengineer.Thesewomenareofficeassistants.Theyareveryhard-working.Thosemenovertherearesalesreps.Theyarebusy.Questions:1.Wherearetheemployees?2.WhatisMr.Smith'sjob?3.Aretheofficeassistantshard-working?4.Whoarethesalesreps?三、答案与解析Exercise1:1.men(不规则变化)2.women(不规则变化)3.employees(规则变化，直接加-s)4.assistants(规则变化，直接加-s)5.engineers(规则变化，直接加-s)6.policemen(不规则变化)7.policewomen(不规则变化)8.taxidrivers(主体名词driver加-s)10.postmen(不规则变化)11.nurses(规则变化，直接加-s)12.mechanics(规则变化，直接加-s)Exercise2:1.a)nurse(护士在医院协助医生)3.b)salesreps(销售代表sellproducts)4.b)mechanic(机修工修理汽车)Exercise3:1.This/That(指代单数可数名词)is2.These/Those(指代复数可数名词)are3.This/That(指代单数可数名词)is4.These/Those(指代复数可数名词)are5.is,is(thatwoman是单数)6.are,are(these指代复数)Exercise4:1.These/Those,policemen(this的复数是these/those,policeman的复数是policemen)2.These/Those,nurses(that的复数是these/those,nurse的复数是nurses)3.This/That,engineer(these的单数是this/that,engineers的单数是engineer)4.This/That,salesrep(those的单数是this/that,salesreps的单数是salesrep)5.These/Those,employees(this的复数是these/those,employee的复数是employees)Exercise5:1.Theyareintheoffice./Intheiroffice.(从"Thisisouroffice.Therearemanyemployeeshere."可知)2.Heisanengineer.(直接陈述"Heisanengineer.")3.Yes,theyare.(原文"Theyareveryhard-working.")4.Theyarethosemenoverthere./Thosemenoverthere.(原文"Thosemenoverthereare