课件20张PPT。111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111 Unit 2 School in CanadaJJ 六年级上册 Lesson 10 How Many Are There?Can you find the differences?1. Pencils and chairsMr. Wood: Can you find the differences?
Jenny: These words have no s. This is one pencil. This is a chair. 1. Pencils and chairs
Liming: These words have an s. These are many pencils.These are many chairs.difference / d?fr?ns/ n. 差异；不同知识点 1讲解There are many differences between the two trees.这两棵树之间有许多不同之处。例句：复数：differences拓展different（adj.）不同的word / w??d/ n. 单词；字；话语【四会】知识点 2讲解I know the three words.我认识这三个单词。例句：复数：words短语：a word list单词表?in a word总而言之形近词：world（n.）世界? work（n./v.）工作名词单数变复数的规则（一）知识点 3名词一般分为可数名词和不可数名词。可以用数量来计算的单词叫可数名词。可数名词有单数和复数两种形式，表示一个用单数，表示两个及两个以上用复数。
cup — cups杯子 car — cars小汽车 pear — pears梨
(1) s 在清辅音后读 /s/，如：
? book — books /b?ks/书? ?cup — cups /k?ps/杯子讲解(2) s 在浊辅音和元音后读 /z/，如：
? bed — beds /bedz/ 床 hour — hours / a??(r)z/ 小时
(3) 其他，如：
? house — houses / ha?z?z/ 房子?
? horse — horses / h??s?z/ 马讲解2. Boxes and buses
Jenny: These words have no s. This is a box. This is a bus. These are many boxes. These are three buses. 名词单数变复数的规则（二） 以“sh，ch，s，x”结尾的名词变复数时，一般直接在词尾加 es，读成/?z/。如：
dish — dishes / d???z/ 盘子?
watch — watches / w?t??z/ 手表
bus — buses / b?s?z/ 公共汽车?
box — boxes / b?ks?z/ 盒子讲解知识点 43. Tomatoes, potatoes and photos
Jenny: Do you see an s or an es in these words? Yes! These are many tomatoes.These are many photos.This is a tomato. This is a photo. This is a potato. These are many potatoes.名词单数变复数的规则（三）以辅音字母加 o 结尾的名词变复数，一般在词尾加 es，读为 /z/。photo 是一个例外，其复数形式是 photos。如：
tomato — tomatoes /t? mɑ?t??z/ 西红柿
potato — potatoes /p? te?t??z/ 土豆
以元音字母加 o 结尾的名词变复数，一般在词尾加 s。如：
radio — radios / re?di??z/ 收音机
zoo — zoos /zu?z/ 动物园讲解知识点 54. Men, women and children
Jenny: Do you see an s or an es in these words? No! These men are young.These children are playing.This man is old. This child is walking. This woman is dancing. These women are singing.名词单数变复数的不规则变化知识点 6上文中出现的 men，women 和 children 属于不规则的名词复数变化形式。在英语学习过程中，还有一些类似的情况，我们一起来看看！讲解讲解一些以 man，woman 结尾的词，变复数形式时与man 和 woman 单数变复数的变化形式相同。如：policeman — policemen 警察讲解单数变复数，规则要记住，
一般加 s，特殊有几处：
s 结尾， es 不离后，
末尾字母 o，大多加 s，
两人有两菜， ? es 不离口，
词尾 f、fe， ? s 前有 v 和 e；
没有规则词，必须单独记。一、单项选择。
（1）—What vegetables do you like?
—I like ________.
A. potatos B. tomatos C. tomatoes
（2）These are many ________ on the table.
A. photos B. photo C. photoes
（3）My grandpa wants to buy three ________ .
A. radioes B. radios C. radioCAB二、用所给词的适当形式填空。
（1）These ________（cat）are very lovely.
（2）She has three _________ （card）for her mum.
（3）Five _________（boy）are reading books.
（4）I see some _________（woman）walking happily on
the square.
（5）How many _________（man）are there?catscardsboyswomenmen 本节课我们学习了以下知识，请同学们一定加强巩固，以便能和同学们进行灵活交流哦！重点词汇：find, difference
重点句式：Can you find the differences?
This is one pencil.
These are many pencils. Thank you!
