2018年秋七年级英语上册 Unit 3 Body Parts and Feelings语法聚焦三课件 (新版)冀教版.ppt

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1、Unit 3 Body Parts and Feelings,单元语法聚焦三 名词复数 treetrees(树) (2)以s, x, sh, ch等结尾的名词,通常在词尾加es。例如: busbuses(公共汽车); boxboxes(盒子); dishdishes(盘子),(3)以y 结尾的名词,其复数构成要分两种情况:以“辅音字母y”结尾的名词,将y变为i,再加es;以“元音字母y”结尾的名词,直接在词尾加s。例如: citycities(城市); boyboys(男孩); keykeys(钥匙),单元语法聚焦三,(4)以o结尾的名词,有些在词尾加s,有些在词尾加es。例如: pianop

2、ianos(钢琴); tomatotomatoes(西红柿) 注意:初中英语中,以o结尾的名词词尾后加s构成复数名词的有 zoo(动物园),photo(照片),piano (钢琴);词尾加es的有tomato(西红柿),potato(土豆),hero(英雄)。,单元语法聚焦三,(5)以f 或fe 结尾的名词,一般将f或fe改为ves。例如: knifeknives(小刀); thiefthieves(贼); lifelives(生命); wifewives(妻子) 注意:初中英语中,这类名词主要有wife(妻子),life(生命),knife(小刀),leaf(树叶),thief(贼),hal

3、f(一半),self(自己),wolf(狼);它们的复数形式均是将词尾的f或fe变为ves。另外,也有以f结尾的名词直接加s构成复数(如:roof roofs 屋顶),但这在初中英语中很少见。,单元语法聚焦三,2单数与复数同形的名词 初中英语中,单数和复数同形的名词主要有sheep(绵羊),fish(鱼),deer(鹿),Chinese(中国人),Japanese(日本人),Swiss(瑞士人)等。 注意:fish 有时也用 fishes,这样的复数形式尤其表示种类。,单元语法聚焦三,3不规则名词的复数 有些名词单数变复数时,没有一定的规则。例如: manmen(男人);womanwomen(

4、女人); childchildren(孩子);toothteeth(牙齿); footfeet(脚); mousemice(老鼠),单元语法聚焦三,注意:一些以man, woman 结尾的合成词,构成复数时与 man, woman 的变化形式相同。例如: policemanpolicemen (警察); policewomanpolicewomen (女)警察,单元语法聚焦三,但是 human(人),German(德国人)不是合成词,其复数不能仿照 man 的变化规律,而是按规则变化,即 humans, Germans。 另外,当man和woman用于名词前作定语时,若其后被修饰的名词为复数,

5、则man和woman也要用复数。例如: man nursemen nurses(男护士) woman doctorwomen doctors(女医生),单元语法聚焦三,4有些名词只有复数形式 初中阶段常见的此类名词有clothes(衣服); glasses(眼镜); scissors(剪刀); pants(裤子); trousers(裤子)等。,单元语法聚焦三,教材典句,1. He has three black hairs. 他有3根黑色的头发。 2. I have short black hair. 我留着黑色短发。 3. He has green eyes. 他长着绿色的眼睛。,单元语法

6、聚焦三,二、实义动词have的用法,通过观察教材上的这三个句子,我们可以看出,表示“某人拥有某物”时,我们通常会用到动词have。 关于它的用法,你了解多少呢?,语法探究,单元语法聚焦三,通过表格可以看出:have用作实义动词时,一般表示“有”,它的第三人称单数形式是has。 1. 一般来说,主语是第三人称单数形式时,谓语动词用has;主语是其他人称时,谓语动词用have。例如: He has two names. 他有两个名字。 I have an elder brother. 我有一个哥哥。,单元语法聚焦三,2. 变一般疑问句时,通常借助助动词do或does。主语是第三人称单数时,借助于助

7、动词does,句中 has还原为have;主语是其他人称时,借助于助动词do,即“Do/Does主语have?” 例如: Does she have any pencils? 她有铅笔吗? Do you have brothers?你有兄弟吗?,单元语法聚焦三,3. 变否定句时,一般在have前加dont,在has前加doesnt,此时has还原为have,即“主语dont/doesnthave”。例如: They dont have children.他们没有孩子。 She doesnt have any pencils. 她没有铅笔。,单元语法聚焦三,记忆口诀 实义动词have的用法 动词

8、have表示“有”,位置就在主语后。 “三单”主语用has,其他人称用have。 一般疑问两法变:一是把它提句前,二是把do/does来添。 否定句子也一样,就看not怎么放。,单元语法聚焦三,实战演练,.把下列名词变成复数形式 1book _ 2 dress _ 3story _ 4 potato _ 5radio _ 6 leaf _ 7glass _ 8 dish _,单元语法聚焦三,books,dresses,stories,potatoes,radios,leaves,glasses,dishes,.用have或has填空 1I _ many good friends. 2Tom _

9、 big blue eyes. 3My classroom _ eight windows. 4The boy in blue pants _ long legs. 5Jenny and Danny_ two black pens.,单元语法聚焦三,have,has,has,has,have,. 用所给词的适当形式填空 1I have two _(knife) 2The _ (student) look sad. Whats wrong with them? 3There are many _(bus) on the road. 4A few _(boy) are drawing on the

10、 wall. 5The _(child) are playing football now.,单元语法聚焦三,knives,students,buses,boys,children,. 单项填空 ()1. They come from different _ Acountry Bcountries Ca country Dcountrys ()2. How many _ does a dog have? Sorry, I have no idea. Lets search(搜索) on the Internet(网络) Atooth Bteeth Ctooths Dtoothes,B,B,单元

11、语法聚焦三,()3.There are two _ and three _ on the table. Aapple; banana Bapples; banana Capples; bananas Dapple; bananas ()4.Most of _ live in _ AChinese; Chinese BChina; China CChinese; China DChina; Chinese,C,C,单元语法聚焦三,()5. The robot can make _ for us. They are delicious. Aapple Bglasses Cnoodles Drice

12、s ()6. My mother_ five white hairs. Ahave Bhas Cam Ddoesnt ()7. My friend_ big ears. Aare Bis Chas Dhave ()8. Tom and I_ a football. Ahave Bhas Care Dam,C,B,单元语法聚焦三,C,A,()9. Does it_ small ears? Ahave Bhas Cis Dare ()10.Do they have nice clothes? _ AYes, they have BYes, they do CNo, they do DNo, the

13、y have,A,B,单元语法聚焦三,()11. How many _ can you see in the picture? Two. Adog Bchild Csheeps Dsheep ()12. Are all the students from _ in your class? No,there are only 3 _ in our class. The others are from other countries. AGermany; GermenBGermany; Germans CGerman; GermansDGerman; Germany,D,B,单元语法聚焦三,()1

14、3. Im a little hungry now. I only drank(喝) some _ before I came to school. Abread BmilkCbanana Dnoodle ()14. Health is important(重要的) to us teenagers(青少年),so we should eat more vegetables such as _ to keep healthy. Atomatoes and potatoesBtomatos and potatos Ctomatos and potatoes Dtomatoes and potato

15、s,B,A,单元语法聚焦三,.按要求完成下列各题,每空一词 1The girl has a big hat.(改为否定句) The girl _ _ a big hat. 2Tom and Jim have red shirts.(改为一般疑问句,并作肯定回答) _ Tom and Jim _ red shirts? _, _ _,单元语法聚焦三,doesnt have,Do,have,Yes,they do,3Tom has a beautiful classroom.(用they代替Tom 改写句子) _ _ a beautiful classroom. 4He has short black hair.(改为一般疑问句,并作否定回答) _ he _ short black hair? _, _ _ 5My teachers have a good office(对画线部分提问) _ _ your teachers _?,单元语法聚焦三,They have,Does,have,No,he doesnt,What do,have,

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