Module 9Unit 3课件 2022-2023学年外研版八年级英语上册.pptx（纯ppt,可能不含音视频素材）

1、Module 9 PopulationUnit 3Language in use.C O N T E N T S课堂导入课文呈现知识讲解课堂小结课堂导入Language practice Thats a huge number.The small local school in Parkville closed down five years ago,and getting to the nearest school in Arnwick takes her an hour by bus.It said the worlds population was about 7.8 billion i

2、n2020.Parkville was near Arnwick,a city with a population of 10,000,000.课文呈现 Mina is（1）_ eighteenyearold girl.She has got（2）_ brother and（3）_ sister.Mina is（4）_ oldest child in（5）_ family.She lives in（6）_ very big city.She has（7）_ job in（8）_ hotel.She hopes that one day she will have（9）_ chance to g

3、o to（10）_ college.Complete the passage with a,an or the where necessary.an a a the the a a a a/Complete the sentences with the correct form of the words in the box.few good much small1 We believe the schools in Arnwick are very good,and we are working to make them even.2 Their flat is too large for

4、two people.They want to find a _ one.better small 3 Anna always talks about her ideas.I think she needs to listen.4 There are a lot of parks in this city.I think there are parks in a lot of other cities.more fewerfew good much small7.Complete the passage with the words in the box.Our world is facing

5、 many problems.Two of the biggest are increasing population and pollution.The（1）of the world is increasing quickly.Why is this happening？countrysidepollutionpopulation spacetrafficpopulation Because more babies are born every year and people also live longer.Many people are leaving the（2）to work in

6、the cities,but there is not enough（3）for so many people.Another huge problem for the world is（4）_.There is so much（5）on the roads that in some cities the air is heavily polluted.We should work harder to protect our world.countryside space pollution traffic countrysidepollutionpopulation spacetraffic

7、World population and waterAround the world With more and more people in the world,more and more water is used.In fact,water use is growing more than twice as fast as the worlds population!As a result,getting good,clean water is becoming a problem in many places.A lot of water is polluted and in many

8、 areas people have to walk a long way to get clean water for daily use.More than 3.4 million people die each year from drinking and washing with polluted water.So lets do everything we can to stop the pollution and save water.冠词冠词定冠词的基本用法定冠词的基本用法(1)表示上文提到过的人或事物表示上文提到过的人或事物e.g.I have a book,and the b

9、ook is written by Mo Yan.我有一本书，这本书是莫言写的。(2)用于说话人和听话人都知道的人或物用于说话人和听话人都知道的人或物e.g.Do you know the boy under the tree?你认识那个在树下的男孩吗？(3)用于指世界上独一无二的事物用于指世界上独一无二的事物e.g.the earth 地 球，the sun 太 阳，the moon 月亮(4)用于表示方位的名词前面用于表示方位的名词前面e.g.in the front of 在 前面，in the east 在东方，on the left 在左边(5)用于序数词或形容词最高级前用于序数词或

10、形容词最高级前e.g.He is the first student to get to the school.他是第一个到达学校的学生。He is the tallest student in his class.他是班里最高的学生。(6)用于普通名词构成的专有名词前用于普通名词构成的专有名词前e.g.the Great Wall 长城(7)用于形容词前，表示一类人或物用于形容词前，表示一类人或物e.g.We should help the old.我们应该帮助老人。(8)用于江河、海洋、海峡、山脉、群岛、建筑物等名词前用于江河、海洋、海峡、山脉、群岛、建筑物等名词前e.g.the Yell

11、ow River 黄河，the Pacific Ocean 太平洋(9)用于姓氏复数形式前，表示用于姓氏复数形式前，表示“一家人一家人”或或“夫妇两人夫妇两人”e.g.The Greens are having dinner.格林一家人正在吃晚饭。(10)用于乐器类名词前用于乐器类名词前e.g.I like playing the piano.我喜欢弹钢琴。(11)in+the+年份复数形式，表示年份复数形式，表示“在多少世纪多少年代在多少世纪多少年代”e.g.This story happened in the 1920s.这个故事发生在 20 世纪 20 年代。(12)用在一些固定短语中用

12、在一些固定短语中e.g.in the morning 在 早晨；in the end 最后；by the way 顺便提一下；at the same time 同时不定冠词的基本用法不定冠词的基本用法(1)泛指人或事物的某一种类泛指人或事物的某一种类e.g.A plane is a machine that can fly.飞机是一种可以飞行的机器。I want to be a teacher.我想成为一名教师。(2)指某一人或事物，但不具体说明指某一人或事物，但不具体说明e.g.He is a teacher in our school.他是我们学校的一名老师。(3)用于一些表示重量、长度、

13、时间等的单位名词前，表示用于一些表示重量、长度、时间等的单位名词前，表示“每一每一”e.g.I go shopping once a week.我一周去购物一次。(4)表数量，相当于表数量，相当于 one，但语气较弱，或表示任何一个，但语气较弱，或表示任何一个e.g.My father bought me a new bike.我爸爸给我买了一辆新自行车。(5)使抽象名词具体化使抽象名词具体化e.g.She is a beauty.她是个美女。(6)在一些固定搭配中在一些固定搭配中e.g.a little 一点；a few 一些；have a look 看一看；have a good time

14、 玩得开心小贴士：小贴士：可数名词单数前用可数名词单数前用 a 还是还是 an,根据读音，而不是字母根据读音，而不是字母。a 用在以用在以辅音音素辅音音素开头的单词前，如开头的单词前，如 a city,a university;an 用在以用在以元音音素元音音素开头的单词前，如开头的单词前，如 an honest boy。零冠词的基本用法零冠词的基本用法(1)表示泛指、种类的复数名词之前表示泛指、种类的复数名词之前e.g.I like animals.我喜欢动物。(2)不含普通名词的专有名词前不含普通名词的专有名词前e.g.Lily is from America.Lily来自美国。(3)名词

15、前有指示代词、物主代词、或名词所有格修饰时名词前有指示代词、物主代词、或名词所有格修饰时e.g.This is my pen.这是我的钢笔。知识讲解(4)季节、月份、星期等名词前一般不用冠词季节、月份、星期等名词前一般不用冠词e.g.I usually go camping in spring.春天我通常去野营。(5)称呼用语前不用冠词称呼用语前不用冠词e.g.Whats the matter,Mom?怎么了，妈妈？(6)一日三餐前不用冠词一日三餐前不用冠词e.g.He didnt have breakfast this morning.他今天早上没吃早餐。(7)球类运动和棋类的名词前不用冠词

16、球类运动和棋类的名词前不用冠词e.g.My father likes playing chess.我父亲喜欢下棋。(8)在一些成对出现的词语前不用冠词在一些成对出现的词语前不用冠词e.g.I like eating fruit and vegetables.我喜欢吃水果和蔬菜。(9)一些名词前不加冠词表示有特定的意义一些名词前不加冠词表示有特定的意义e.g.go to school 去上学，go to the school 去那所学校，go to hospital 去医院看病，go to the hospital 去那所医院(不一定看病)类似的有 bed,table,class,univers

17、ity 等。数词数词基数词表达法基数词表达法范围特点 例词1 12无规律one,two,three,four,five,six,seven,eight,nine,ten,eleven,twelve13 19以-teen结尾thirteen,fourteen,fif-teen,sixteen,seventeen,eighteen,nineteen范围特点 例词20 90之间的整十数以-ty 结尾twenty,thirty,forty,fifty,sixty,seventy,eighty,ninety21 99之间的两位数(整十位除外)十位与个位之间要加连字符“-”twenty-five,nine

18、ty-nine101 999百位和十位之间通常用 and 连接one hundred and eleven范围特点 例词千以上从后向前每三三位加 一 个 逗 号，第 一 个 逗 号 读thousand，第 二个读 million，第三 个 读 billion，然后一节一节读four thousand two hundred and fifty-five(4,255)序数词表达法序数词表达法范围特点 例词1、2、3 无规律 first,second,third4 19 一般在基数词后加-thfourth,fifth,eighth,ninth,twelfth,nineteenth20 90整十数把

19、基数词后的-y变成-i，再加-ethtwentieth,ninetieth21 及 其后 的 两位数个位数用序数 词，十位数用基数词21st:twenty-first,65th:sixty-fifth巧记英语序数词基变序，有规律；一二三，单独记；八减 t，九去 e，ve 要用 f 替；整十基数变序数，ty 先改 ti，eth 最后加上去；要是遇到两位数，十位基数个位序。序数词前出现不定冠词时，表示序数词前出现不定冠词时，表示“又一，再一又一，再一”的意思。的意思。e.g.I have tried it three times.Can I try a fourth time?我已经试了三次。我可

20、以再试第四次吗？分数表达法巧记分数表达法巧记1/4:a fourth/one fourth/a quarter/one quarter3/4:three quarters/three fourths Mina is an eighteen-year-old girl.eighteen-year-old 十八岁的十八岁的e.g.He is ten years old.他十岁了。He is a tenyearold boy.他是一个十岁的男孩。a threeweek holiday 一个为期三周的假期“数词名词形容词数词名词形容词”中形容词通常为中形容词通常为longlong，widewide，t

21、alltall，oldold，deep deep 等。等。词与词之间有连字符词与词之间有连字符“-”，名词要用单数名词要用单数形式。形式。.we are working to make them even better.even/ivn/adv.还，甚至更还，甚至更e.g.You know even less about it than I do.你对此事的了解甚至还不如我。It is cold there even in summer.那儿即使夏天也是寒冷的。放在比较级前，用来表示程度，加强比较。放在比较级前，用来表示程度，加强比较。even even 作副词，作副词，还可意为还可意为“甚至

22、，连，即使甚至，连，即使”，用于强调出乎意料。，用于强调出乎意料。There is so much traffic on the roads that in some cities the air is heavily polluted.so.that.如此如此以至于以至于 so+many/much/few/little+so+many/much/few/little+名词名词+that.+that.so+adj./adv.+that.so+adj./adv.+that.so+adj.+a/an+so+adj.+a/an+可数名词单数可数名词单数+that.+that.e.g.There wa

23、s so much snow on the road that the cars couldnt move fast.路上雪太多，汽车难以跑快。He runs so fast that we cant catch up with him.他跑得太快，我们赶不上他。It is so heavy a box that I cant lift it.这个箱子太重了，我提不起来。As a result,getting good,clean water is becoming a problem in many places.as a result 意为意为“结果，因此结果，因此”，为固定短语，其后通常

24、用逗，为固定短语，其后通常用逗号与后面的句子隔开。号与后面的句子隔开。as a result of as a result of 意为意为“因为，由于因为，由于”，为介词短语，后接，为介词短语，后接名词、代词和动词的名词、代词和动词的-ing-ing 形式，相当于形式，相当于because ofbecause of。e.g.All singers kept together.As a result,their performance was very successful.所有的歌手协调一致，结果他们的演出非常成功。He was late as a result of the heavy sn

25、ow.由于大雪他迟到了。More than 3.4 million people die each year from drinking and washing with polluted water.die from 死于死于e.g.The old man died of cancer.这位老人死于癌症。Many people died from the earthquake.许多人死于那场地震。不同的死因不同的死因 die of die of 多指死于内部疾病等自身原因多指死于内部疾病等自身原因 die fromdie from多指死于外因，多指死于外因，主要指事故等方面的外部原因主要指事故等方面的外部原因课堂小结 本节课主要复习巩固了单元内所学词汇；掌握大本节课主要复习巩固了单元内所学词汇；掌握大额数字的读法和写法额数字的读法和写法,及冠词的用法。及冠词的用法。