初中英语人教新目标 (Go for it) 版八年级下册Section A评优课ppt课件

这是一份初中英语人教新目标 (Go for it) 版八年级下册Section A评优课ppt课件，文件包含Unit7WhatsthehighestmountainintheworldSectionA4a4c课件29张ppt、Unit7WhatsthehighestmountainintheworldSectionA4a-4c教案docx、Unit7WhatsthehighestmountainintheworldSectionA4a4c练习doc、长江mp4等4份课件配套教学资源，其中PPT共36页， 欢迎下载使用。

Learning bjects（学习目标）
By the end f the class, yu will be able t:1. Learn the fllwing key wrd and phrase: cean, the Pacific Ocean2. Use cmparatives and superlatives f adjectives and adverbs.3. Learn t use big numbers t describe facts.
The YangtzeRiver is abut 6,300 kilmeters lng.
Watch a vide and answer hw lng is the Yangtze River?
黄河长5,464千米。
The Yellw River is 5,464 kilmeters lng.
长城大约有8,850千米长。
The Great Wall is abut 8,850 kilmeters lng.
珠穆朗玛峰高8,844.43米
Qmlangma is 8,844.43 meters high
What can yu get frm the abve sentences? Try t translate the sentences belw:
1. 那个篮球运动员有两米高。2. 那条河只有两米深/宽。3. 这棵树有两米高。4. 那条河长约两千米。
The basketball player is tw meters tall.
The river is nly tw meters deep/wide.
The tree is tw meters tall.
The river is abut tw kilmeters lng.
Presentatin
1.长度、宽度、高度、深度的表示法:
*长度、宽度、高度、深度的表示法，有一个专门的结构：“基数词+单位词+形容词”
2. 除了以上的表示方法，有时也可用“基数词+单位词+in+长宽高深度等的名词”来表示。… in length 长度 … in width 宽度… in height 高度 … in depth 深度 若表示重量，可以用 … in weight
1.这座山大概两千米高。The muntain is abut tw thusand meters high.2.那面镜子有两米长。The mirrr is ________________.
4. 这个箱子重9公斤。 The bx is 9 kils.= The bx is 9 kils in weight.5. 那座桥有三米高。 The bridge is 3 meters in height.
3. 教室有25英尺长，20英尺宽。
The classrm was 25 feet in length and 20 feet in width.
tw meters lng
Grammar fcus
—世界上最高的山峰是哪个？ — 珠穆朗玛峰。 — What’s __________ muntain in the wrld — Qmlangma.
Fill in the blanks accrding t Grammar Fcus.
the highest
2. —珠穆朗玛峰有多高 —它有8844.43米高。 —它比别的山都高。 — Hw high is Qmlangma?— It’s 8844.43 meters high. It’s _____________________ muntain.
higher than any ther
3. —世界上最深的咸水湖是哪个？ —里海是世界上最深的咸水湖。 — Which is ____________ salt lake in the wrld? — The Caspian Sea is ______________________________.
the deepest
the deepest f all the salt lakes
4. —你知道中国是世界上最古老的国家之一吗？ —我知道。中国比美国古老。 — Did yu knw that China is _________________________ in the wrld? — Yes, I did. It’s much lder than the US.
ne f the ldest cuntries
Grammar Fcus
Circle the cmparisn parts.
形容词与副词的比较级和最高级
一、概述： 英语中的形容词和副词常用三种形式来表达事物的等级差别，即原级、比较级和最高级。原级：没有比较含义，“……”；比较级：两者间比较，“更……”；最高级：三者及三者以上比较，“最……”。
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”结尾的重读闭音节词，把y 变为i，再加 -er 或- est
nice—______—______
heavy—________—________
二、比较级和最高级的构成
④以一个辅音字母结尾的重读闭音节 双写该辅音字母再加 -er或 -est
⑤部分双音节词和多音节词 分别在原级前加mre构成比较级和mst构成最高级
big—_______—_______
slwly—___________—___________beautiful—______________—______________
mre beautiful
mst beautiful
1. 两者间的比较：A＋谓语动词＋比较级＋than＋B A比B更……
Lily is shrter than her sister.
2. 同一范围内的比较：A+谓语动词+比较级+than any ther +B（可数名词单数）= A+谓语动词+比较级 +than the ther +B（可数名词复数），表示最高级的 含义。 A比其他任何一个B都……
翻译句子，并写出同义句。
我父亲是我们家最高的。
My father is the tallest ne in my family.My father is taller than any ther member in my family.My father is taller than the ther members in my family.
3. the＋比较级，the＋比较级，表示一方的程度随着另 一方的变化而变化。越……，越……
The mre careful yu are, the fewer mistakes yu’ll make.
4. 比较级＋and＋比较级/ mre and mre＋形容词/副 词原级。越来越……
It’s getting warmer and warmer in spring.
5. 主语＋谓语动词＋the＋比较级＋f the tw…，是特 指的情况。 两者之间较……的那个
Mary is the taller f the tw girls.
6. Wh/Which＋谓语动词＋比较级，A r B?表示两 者之间进行比较 谁/哪一个更……，A还是B？
Which is better, the blue ne r the red ne?
①比较的对象必须一致，为避免重复，常用that或 thse代替前面的名词。②在上文意思明确的情况下，可以单独使用“a/an+比 较级+ne”，意为“又一/再一更……的”。③比较级前可用much, a lt, a little, a bit, even, far等修 饰，用来加强语气或表示程度。
1. the＋最高级＋in/f… ……中最……
Greenland is the biggest island in the wrld.
2. ne f＋the＋形容词最高级＋可数名词复数 最……的……之一
Fishing is ne f the mst ppular activities amng the middle-aged men like my uncles.
3. the+序数词+形容词最高级+可数名词单数+in/f… ……在……中是第几……的……
Jack is the secnd tallest by in his class.
4. Which/Wh＋谓语动词(＋the)＋最高级，A, B r C? 在A、B、C中，哪一个/谁最……？
Which city is the mst beautiful, Beijing, Shanghai r Fuzhu?
Can yu read these large numbers?
tw thusand six hundred and seventy-fur
1. 从数字右端向左数，每三位数加一个逗号；
2. 第一个逗号前的数为thusand（千）；
3. 读的时候通常在hundred后加and。
eighteen millin, three hundred and fifty-seven thusand, and eighty-nine
2. 第一个逗号前的数为thusand（千）；第二个逗号前的数为millin（百万）；第三个逗号前的数为 billin（十亿）
3. 读的时候通常在hundred后加and，如果百位数为0，则在thusand后加and。
1. 英语没有“万”这个单位，要表示“万”须 借用 thusand，如“一万”用“十个千 （ten thusand）” 表示，“十万”用“百个千 （ne hundred thusand）”表示。2. 在hundred后通常加上连词and。若读数中百位 数为0，则在thusand后加and。
five thusand, seven hundred and sixty-fur
eighty-eight thusand, six hundred and frty-nine
tw hundred and sixty-five thusand, fur hundred and sixty-eight
nineteen millin, three hundred and fifty-seven thusand, and ninety-five
Fill in the blanks with the crrect frms f the wrds in the bx.
big much ppular lng ld high
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.
Write tw cmparisns abut tw tpics. Write true facts.
Tw rivers: _________________ and _____________________________________________________________________________________________________________________________________________________________
The Yangtze River is almst as lng as the Amazn River.The Amazn is lnger than the Yangtze, but the Yangtze River is the lngest river in China.
the Yangtze River
the Amazn River
Tw cities: __________ and ___________1. _______________________________2. __________________________________ __________________________________
Tw animals: ________ and ________1. _______________________________2. _______________________________ _______________________________
Kuala Lumpur
Kuala Lumpur is as mdern as Singapre.
Singapre is bigger than Kuala Lumpur and has a larger ppulatin than Kuala Lumpur.
A dg is bigger than a mnkey.
A mnkey is smaller than a dg, but it climbs a tree faster than a dg.
Write five questins using cmparisns. Then ask yur partner yur questins.
1. _________________________________________2. _________________________________________3. _________________________________________4. _________________________________________5. _________________________________________
What is the highest building in ur city?
What is the busiest subway statin in ur city?
What is the largest shpping mall in ur city?
Which is the biggest park in ur city?
Which is the lngest rad in ur city?
1. She is ________ than ________. A. busier / us B. busier / we C. mre busy / us D. mre busy / we 2. China is ________ cuntry in the wrld. A. the third largest B. the largest third C. the third large D. a third largest3. — Which is ____ seasn in Beijing? — I think it’s autumn. A. gd B. better C. best D. the best
4. — Which is ____, the sun, the mn r the earth? — The mn. small B. smaller C. smallest D. the smallest5. I study English as ____ as my brther. hard B. harder C. hardest6. Which is ____, a bicycle r a cmputer? A. expensive B. mre expensive C. the mst expensive
Ⅱ.根据短文内容及括号内所给单词的提示填空。 Mrs. Black has three sns. They’re Mike, Dave and Jeff. Mike is eleven years ld. He’s (1)___________(yung) f the three children. He lks as (2)_________(tall) as his brther Dave. But he is a little (3)_________(heavy) than Dave. Mike and Dave bth like running. Dave is thinner than Mike, s he runs much (4) __________ (quickly) than Mike. The tw bys als like ne f (5)____________________(dangerus) sprts, muntain climbing. Every weekend they g
the yungest
mre quickly
the mst dangerus
muntain climbing. Sure, every time Dave gets t the tp f the muntain (6)_________(early) than Mike.Jeff is the ldest and (7)______________(serius) child f the three children. He hardly ever talks but I think he des things (8)____________ (carefully) than any ther student in ur class. In every test he always des best but I d (9)_________ (badly). Jeff always tries his best t help me. Jeff is (10)_________________ (wnderful) by that I’ve met s far. I like him. And I’m prud (骄傲的) t be his friend.
the mst serius
mre carefully
the mst wnderful