英语人教版（2024）Unit 7 What’s the highest mountain in the world? Section A背景图课件ppt

这是一份英语人教版（2024）Unit 7 What’s the highest mountain in the world? Section A背景图课件ppt，共42页。PPT课件主要包含了学习目标，taller，tallest，longer，longest，nicer，nicest，heavier，heaviest，bigger等内容，欢迎下载使用。
Presentatin
词汇: cean, the Pacific Ocean；
鼓励学生仔细观察并善于发现总结规律。
通过本节课学习,提高同学们对于保护濒危野生动物的意识。
复习并掌握形容词和副词三个等级原级；比较级和最高级的用法；
Hw much d yu knw abut the scenery?
N muntain in the wrld is ____________ Qmlangma.
It is 8848.86 meters _____.
lt is ____________ muntain in the wrld.
It is ______ than any ther muntain in the wrld.
the highest
N desert in the wrld is ____________ the Sahara.
It is 9600000 square kilmeters ___________.
lt is _____________ desert in the wrld.
It is ______ than any ther desert in the wrld.
the largest
as large as
N river in the wrld is _____________ the Nile.
It is 6,671 kilmeters ______.
lt is ____________ river in the wrld.
It is ______ than any ther river in the wrld.
N salt lake in the wrld is _____________ the Caspian Sea.
It is 1025 meters _____.
lt is ______________ salt lake in the wrld.
It is ________ than any ther salt lake in the wrld.
the deepest
Grammar
Grammar Fcus
What did yu find ut?
如何询问和表达物体的长度、宽度、高度、深度等。
如何询问物体的长度、宽度、高度、深度等？
句型： Hw + lng (wide, high, deep, big, heavy…)+谓语+主语+其他？
Hw wide is the mirrr? 那面镜子有多宽？
如何表达物体的长度、宽度、高度、深度等呢？
It's 8,844.43 meters high.
______+______+___________(lng, high, wide, deep…)构成的;
物体的长、宽、高、深的表达法： 基数词+度量词（meters，kilmeters, square kilmeters）+形容词（lng, wide, high, deep等）。当基数词大于1时，度量词用复数形式。
e.g. The basketball player is 2 meters tall. The river is abut 2 meters wide/deep. The muntain is abut 2 thusand meters high.
1．The Yangtze River is abut 6,397 kilmetres ________.A．tallB．highC．lngD．wide2．The new bridge in ur village is _________.A．666 meter high B．666 high metersC．666 lng meters D．666 meters lng3．—What’s the ________ f the building? —It’s 236 metres ________.A．high; highB．height; heightC．high; heightD．height; high4．这张桌子有5米长。The desk is .5．这块岩石长5米，宽2米。The rck is and 2 meters wide.
five meters lng
5 meters lng
Find the cmparatives and superlatives.
此句型用比较级表达最高级含义
形容词和副词的原级,比较级,最高级
没有比较含义,“……”
两者间比较,“更……”
三者及三者以上比较,“最……”
注意：某些形容词和副词只用原级，如：perfect，excellent，dead等。
一、形容词、副词比较级和最高级变化规则
①直接加 -er 或 -est
tall—_____—______ lng—______—______
②以不发音的字母e结尾的单词直接加 -r 或 -st
③以“辅音字母+y” 结尾,把y变为i,再加 -er 或- est
nice—______—______
heavy—________—________
④辅元辅，且重读双写辅音字母再加 -er或 -est
⑤部分双音节词和多音节词 比较级：mre+多音节形容词副词原级 最高级：mst+多音节形容词副词原级
big—_______—_______
slwly—___________—___________beautiful—______________—______________
mre beautiful
mst beautiful
巧记：大big红red胖fat瘦thin湿wet热ht悲sad
二、形容词、副词的比较级和最高级的不规则变化
Lucy desn't study ______ ______ ____ Lily.露西不如莉莉学习努力。Eric is ____ ____ ____ Jerry.埃里克和杰里一样高。
三、形容词和副词的原级的用法
当两者进行比较时，若比较双方在某方面程度相同，常用“as+原级+as”型结构，否定形式为“nt as/s+原级+as”。
常用于修饰原级的单词或短语：very、t、quite、s等
1．This rm is as ________ as that ne.A．bigger B．lnger C．clearly D．clean2．Daniel is ________ his brther. They are bth 1.76 meters tall.A．taller than B．as tall asC．s tall as3．—This film is ________ that ne. —I agree, s I like bth f them.A．as interesting as B．nt as interesting asC．mre interesting than D．less interesting than4．—Our classrm is ______ clean ______ yesterday.—Srry, I’ll clean it right away.A．as; as B．s; as C．nt s; as5．—Mum, culd yu buy me a car like this?—Certainly, we can buy _______ ne like this, but _______ this.A．a wrse, as gd as B．a better, better thanC．mre imprtant, nt as gd as D．a cheaper, as gd as
Our hmetwn is becming ______ and ______ _________.我们的家乡变得越来越美了。
四、形容词和副词的比较级的用法
（1）“A+谓语动词+比较级+than+B”表示“A比B更……”。
The Himalayas are _______ ______ the Alps.
（2）“比较级+and+比较级”表示“越来越……”；多音节词和部分双音节词用“mre and mre+原级”。
It's getting _______ and _______.天气变得越来越冷了。
（6）常用于修饰比较级的单词或短语：a little、a lt、a bit、much、even、far等
（3）“The+比较级..., the+比较级...”意为“越……，就越……”。
___________ he gets, ____ ________ he is.他越忙碌，就越高兴。
（4）“Which/Wh（+f the tw...）+谓语动词单数形式+比较级， A r B?”意为“两者中哪一个/谁更……”。
Which f the tw mvies is mre interesting, this ne r that ne? 两部电影中哪一部更有趣，这一部还是那一部？
（5）“the+比较级+f the tw...”意为“两者中更……的”。
He is the thinner f the tw bys. 他是两个男孩中更瘦的一个。
1．Our cuntry is getting ________ . Many freigners wuld like t visit it.A．mre beautiful and mre beautifulB．mre beautiful and beautifulC．mre and mre beautiful D．beautiful and beautiful2．—The dctr tells me nt t eat t much junk fd, but I find it hard.—The dctr is right.________ junk fd yu eat, ________ yu will be.A．The mre; the healthier B．The mst; the healthiestC．The less; the healthier D．The least; the healthiest3．—Which is ________ f the twins, Lucy r Lily? —It’s hard t say. Bth f them are gd at their lessns.A．the clevererB．cleverer C．cleverest D．the cleverest4．—What d yu think f the nvel The Three-bdy Prblem?—I’ve never read ________ ne befre. It is full f imaginatin（想象力）.A．the best B．the wrstC．a wrse D．a better5．This bk is ________ interesting, but that ne is ________ mre interesting.A．far; very B．far; muchC．pretty; veryD．pretty; much
She runs fastest in ur class. 她在我们班里跑得最快。Tm is ____ ______ ______________ f us all. 汤姆是我们当中工作最努力的。
hard-wrking
五、形容词和副词的最高级的用法
（1）“（the+）最高级+f/amng/in...”意为“（三者及以上）最……的”；形容词最高级前加the,副词最高级前可不加。
【注意】 介词f/amng后接同句子的主语属于同一个概念范畴的名词或代词；而介词in后常接表示组织、团体之类的集体名词。
（2）“Which/Wh+谓语动词+（the+）最高级， A,B r C?” 意为“三者中哪一个/谁最……”。
Which is ____ ________, the sun, the earth r the mn?太阳、地球和月球，这三者中哪一个最大？
the biggest
（3）“ne f the+形容词最高级+复数可数名词”意为“最……的……之一”。
One f ____ ______ __________ languages is English.最重要的语言之一是英语。
the mst imprtant
（4）“the+序数词+形容词最高级+单数可数名词”意为“第几最……”。
The Yellw River is ____ ________ ________ river in China.黄河是中国的第二长河。
the secnd lngest
1．Qmlangma is the _________ muntain in the wrld.A．highB．higher C．mre higherD．highest2．Lndn is ne f the ________ famus ________ in the wrld.A．/; cityB．mst; citiesC．mre; citiesD．mst; city
3．—Hainan is a very large island. —Yes, it’s the secnd ________ island in China.A．large B．larger C．largestD．the larger4．Which city has ________ ppulatin, Beijing, Wuhan r Shanghai?A．larger B．the largestC．mreD．the mst5．Of all the perfrmers, I think he is the ________ ne.A．success B．mst successfulC．mre successful D．successful6．—Wh runs _________? Jim, Tm r Sam? —Tm des, f curse.A．fast B．faster C．mst fast D．fastest7．—Tm, I hear that Bb runs ________ in yur class. Is that true? —N. In fact, he desn’t run as ________ as Jhn.A．fastest; faster B．fastest; fastC．faster; fastest D．faster; fast
（2）“比较级+than any ther+名词单数形式”或“比较级+than the ther+可数名词复数形式”可与“（the+）最高级+f/amng/in...转换”。
The mvie is the mst interesting f all.这部电影是所有电影中最有趣的。=The mvie is mre interesting than _____ ______ mvie.=The mvie is mre interesting than ____ ______ mvies.
any ther
the ther
六、原级、比较级与最高级之间的转换
（1）结构和最高级的转换
N cean in the wrld is as big as the Pacific Ocean. 太平洋是世界上最大的海洋。=The Pacific Ocean is ____ ________ cean in the wrld.
the biggest
1．He is nt as tall as Mike.(改为同义句)Mike is him.2．This is the highest muntain in the cuntry. (改为同义句)N muntain is this ne in the cuntry. 3．This river is lnger than the ther rivers in the cuntry.（改为同义句）This river is in the cuntry.4．Nbdy else is cleverer than Daniel in his class. (同义句改写)Daniel is student in his class.5．It is the mst beautiful city in China.（改为同义句）It is than in China.
taller than
as high as
the cleverest
mre beautiful any ther city
Fill in the blanks with the crrect frms f the wrds in the bx.
1. The Amazn River is ne f the rivers in the wrld. It’s a little _______than the Yangtze River.2. Qmlangma is 8,844.43 meters _____. It’s ne f the mst ________ places fr serius muntain climbers. 3. N cean in the wrld is as _____ as the Pacific Ocean.4. Althugh Japan is _______ than Canada, it is _______ smaller.
bigmuchppularlngldhigh
Write tw cmparisns abut tw tpics. Write true facts.
rivers: ________________ and ______________________________________________________________________________________________________________________________________________________________
the Yangtze River
the Amazn River
The Amazn is lnger than the Yangtze, but the Yangtze is the lngest river in China.
The Yangtze River is almst as lng as the Amazn River.
Tw cities: and
The ppulatin f Jinan is nt___ _____ _____ that f Beijing.The ppulatin f Beijing is ______ ______than that f Jinan,
as large as
much large
Tw cities: ________________ and _______________________________________________________________________________________________________________________________________________________________
Shanghai Sydney
Shanghai is nt as big as Sydney.
Sydney is much bigger than Shanghai. Sydney is almst 2 times as big as Shanghai.
Area:12368 sq km
Area:6340 sq km
Write five questins abut Chengdu using cmparisns. Then discuss yur questins in grups.
1. _________________________________2. _________________________________3. _________________________________4. _________________________________5. _________________________________
What is the highest building in Chengdu??
What is the largest single buiding in Chengdu?
Which is the busiest rad in Chengdu?
What is the mst ppular street in Chengdu?
What is the mst delicius fd in Chengdu?
Exercises
1. My brther has ____ bks than I. A. much B. mre C. many D. mst 2. The mre yu smile, the _____ yu will feel. A. happy B. happier C. happily D. mre happily3. I knw yu are shrter than yur brthers，but yu run _________. A. mre faster B. fastest C. mre fast D. fast 4. Mr Smith thught the Century Park was the secnd _____ in Shanghai. A. large B. larger C. largest D. very large5. I think English is as ____ as maths.   A. imprtant   B. mre imprtant   C. mst imprtant   D. imprtanter
1. China is _______ (large) than any ther cuntry in Asia.2. Our city is becming mre and mre _________ (beautiful).3. The _____ (much) we d fr the ld peple, the _______ (happy) we’ll be.4. My brther is the ______ (tall) f the tw bys in the picture.5. Her bedrm is twice _________ (big) than mine.6. Mrs. Smith lks much __________ (yung) with her new hairstyle.7. China is ne f __________________(ancient) cuntries in the wrld.8. The Yellw River is the secnd ________ (lng) river in China.
二、用括号中所给单词的适当形式填空
the mst ancient
二、根据汉语意思完成句子,每空一词。登陆火星比我们想象中要难得多，但我们做到了Landing n Mars was　 　 　 　 　　　　　than we imagined, but we made it. 2. 袁隆平是最伟大的科学家之一，他对世界做出了重要的贡献。Yuan Lngping, ne f 　　 　　　　 　　　　　, made imprtant cntributins t the wrld. 3. 我认为四月是泰国最热的月份。I believe that April is 　　 　　　　 　　　　in Thailand. 4. 汤姆是我们班年龄第二大的学生。Tm is　　 　　　　 　　　　student in ur class. 5. 这栋房子的起居室比其他任何房间都大。The living rm is bigger　　　 　　　 　　　rm in this huse.
much mre difficult
the　greatest　scientists
the　httest　 mnth
than　any　 ther
the　secnd　 ldest
1. D the exercises in students’ bk.2. Read and recite the wrds and phrases in Sectin A (GF-4c).3. Preview the passage in Sectin B 1a-1d.