仁爱版七年级英语上册-Unit-1-Topic-3-Section-C-课件(共25张PPT).ppt

2023/6/11仁爱版七年级英语上册仁爱版七年级英语上册 Unit 1 Topic 3 Section C 课件课件(共共25张张PPT)学习目标：学习目标：英语名词的基本知识、考点。学习重点：学习重点：总结可数名词单数变复数的变化规则。学习难点：学习难点：不规则名词复数。a和和an的区别的区别1.a 用在以辅音音素开头的单词前。用在以辅音音素开头的单词前。例如：例如：a book，a desk2.an 用在以元音音素开头的单词前。用在以元音音素开头的单词前。例如：例如：an egg，an applea/an被称作不定冠词，用在单数可数名词前，表达某一被称作不定冠词，用在单数可数名词前，表达某一个人或事物中的一个，相当于汉语的个人或事物中的一个，相当于汉语的“一一”，但不强调数但不强调数目概念。目概念。a/an用法的区别：用法的区别：a book a pencilan orangean egga map自主学习：自主学习：请选择请选择a或或an或不填（用或不填（用/表示）表示）a pen a bag an apple a big apple a banana an orange /oranges an orange pen What are these in English?Theyre apples.What are those in English?They are books.What are these/those in English?Theyre.pencilsappleserasersboxesfour bookseight applesfour busesseven boxesLook and learn.Whats this/that?Its What are these/those?Theyre a book two books an orangefive orangesan eraser three erasersa bus six busesa ruler four rulersa box seven boxes可数名词复数变形规则：可数名词复数变形规则：(1)在一般情况下直接在词尾加在一般情况下直接在词尾加-s;例如例如:deskdesks penpens pencilpencils carcars appleapples teacherteachers(2)以以-s,-x,-ch,-sh 结尾的单词在词结尾的单词在词尾加尾加-es;例如例如:boxboxes(盒子）盒子）busbuses（公共汽车）（公共汽车）watchwatches(手表）手表）classclasses(班级）班级）(3)以以“辅音字母辅音字母+y”结尾，变结尾，变y为为i,再加再加-es，如：如：family-families（家庭）（家庭）strawberry-strawberries（草莓）（草莓）(4)以以“f或或fe”结尾，变结尾，变f或或fe为为v,再加再加-es，如：如：knife-knives(5)以以o结尾的名词加结尾的名词加es 的有：的有：如：如：zoozoos photophotos1.名词：表示人或事物的名称。名词：表示人或事物的名称。2.掌握可数名词的单数和复数形式。掌握可数名词的单数和复数形式。3.不规则名词复数。不规则名词复数。4.不可数名词不可数名词合作探究：写出下列各词的复数 watch watches child children photo photos diary diaries day days foot feet book books dress dresses tooth teeth sheep sheep box boxes strawberry strawberries man men woman women 随堂精练：随堂精练：请用所给名词的适当形式填空：请用所给名词的适当形式填空：1.I have two knives(knife)2.There are many boxes here.(box)3.There are many buses on the road.(bus)4.A few boys are drawing on the wall.(boy)5.The children are playing football now.(child)随堂精练：随堂精练：请用所给名词的适当形式填空：请用所给名词的适当形式填空：6.Look at those children.(child)7.I can see a policeman standing near the door.(policeman)8.Do you want some potatoes for dinner?(potato)9.He has two boxes.One is blue,the other is yellow.(box)10.Two families live in this building.(family)能力提升：能力提升：1)请写出下列词的复数形式请写出下列词的复数形式,没有复数形式的没有复数形式的请划出请划出/。city cities zoo zoos country countries tooth teeth mouse mice boy boys car cars tree trees horse horses bus buses fox foxes baby babies family families country countries photo photos piano pianos knife knives man men woman women child children foot feet watch watches diary diaries day days book books dress dresses sheep sheep tea /box boxes strawberry strawberriespaper/juice/water/milk/rice/deer deer2)填入所给名词的正确形式填入所给名词的正确形式1.Please take two photos for me.(photo)2.I like the red tomatoes.(tomato)3.Would you please clean your teeth now?(tooth)4.Do you want some milk?(milk)5.There are ten women teachers in our school.(woman teacher)3）选择正确的词形）选择正确的词形 1.There are 36(boys,boies)in my class.2.Look at those(sheeps,sheep).3.I dont want(a,an)old cup.4.Give me that(box,boxes),please.