初中英语人教新目标 (Go for it) 版八年级下册Section A课文配套课件ppt
展开Unit 7What's the highest muntainin the wrld?
教学目标
1.掌握用adj.和adv.的比较级和最高级的用法2.学会用adj.和adv.的最高级来描述个人喜好
Sectin A 3 Grammar fcus—— 4c
Liu Xiang is taller than Zhu Jielun .
Zhu Jielun is tall .
Ya Ming is the tallest f them.
Grammar fcus
— What’s the highest muntain in the wrld?— Qmlangma.— Hw high is Qmlangma?— It’s 8,844.43 meters high. It’s higher than any ther muntain.
— Which is the deepest salt lake in the wrld?— The Caspian Sea is the deepest f all the salt lakes.— Did yu knw that China is ne f the ldest cuntries in the wrld?— Yes, I did. It’s much lder than the US.
大多数形容词有三个级。 1. 原级:(文中或句中的第一者)Structure : as ... as... 与..….一样 e.g. Tm is tall. Tim is as tall as Tm. 2. 比较级 (用于两者之间的比较):Structure:形容词比较级+ than ... e.g. This bx is bigger than that ne.
形容词和副词的比较级和最高级
3. 最高级(用于三者或三者以上的比较):Structure: the + 形容词的最高级+f / in /amng... e.g. Tm is the heaviest in ur class. He is the mst ppular in ur schl.
规则变化 1) 一般情况下,单音节或双音节的形容词/副词比较级+er, 最高级+est。如:clever — cleverer — cleverest few — fewer — fewest small — smaller — smallest 等。
形容词、副词的比较级和最高级规则变化和不规则变化
2) 以e结尾的词,比较级+r,最高级+st 即可。 如:nice — nicer — nicest cute — cuter — cutest large — larger — largest 3) 以辅音字母+y结尾的变y为i+er或est 如: easy — easier — easiest happy — happier — happiest 再如:early, busy, heavy, dirty, lazy 也如此。
4) 重读闭音节,单辅音结尾的,双写这个辅音字母+er 或 est的词:① fat — fatter — fattest ② thin — thinner — thinnest ③ ht — htter — httest ④ red — redder — reddest ⑤ wet — wetter — wettest ⑥ big — bigger — biggest
5) 多音节和部分双音节的词需要在形容词原级前+mre 构成比较级,+the mst 构成最高级。如: beautiful - mre beautiful - the mst beautiful 又如: delicius, ppular, imprtant, interesting, expensive, creative双音节的词如: careful - mre careful - the mst careful useful - mre useful - the mst useful
少数单音节词也是这样,如:
pleased — mre pleased — the mst pleased tired — mre tired — the mst tired b) 不规则变化:gd — better — best well — better — best bad /badly— wrse — wrst many/much — mre — mst
far — farther —farthest (距离远) far — further — furthest (程度深) ld — elder — eldest (长幼) ld — lder — ldest (年龄)
三者或三者以上相比,表示最高程度时,用“the + 最高级”的结构表示。这种句式一般常有表示比较范围的介词短语。例如:Zhang Hua is the tallest f the three.He wrks (the) hardest in his class.
3. 表示“最高程度”的形容词,如 excellent,extreme极端的,非常的,perfect等,没有最高级,也不能用比较级。4. 形容词最高级修饰作表语或介词宾语的名词、代词时,被修饰的词往往省略。e.g. He is the tallest (by) in his class.5. 作状语的副词最高级前可以不加定冠词。e.g. Of all the bys he came (the) earliest.
比较级的判断① 比较级修饰问题 a little, a bit, even, far,much, a lt, 等可修饰比较级。
e.g. Tm is a little taller than Jim. This bk is much mre interesting than that ne.
② 同级比较()e.g. The weather in Beijing is clder than that in Xi’an. Our schl is bigger than yurs.③ the + 比较级e.g. Lucy is the fatter f the tw girls.
④ “a/an + 比较级” 表示“又一,再一”e.g. Lily has a dll, but she wants a bigger ne.⑤ 隐性比较(没有than的情况)e.g. Wh runs faster, Lucy r Lily? Yu’d better cme earlier next time. He wrked hard last term, but he wrks even harder this term.
⑥ 越来越 比较级 + and + 比较级b. the + 比较级 + 句子,the + 比较级 + 句子e.g. It’s getting clder and clder. The mre yu exercise, the better yu are.
2. 最高级考点说明:形容词的最高级前必须加the;副词的最高级前省略the。① 范围问题 in f amnge.g. Tm is the tallest student in the class. Spring is the best seasn f the year.
② “之一”问题e.g. Beijing is ne f the biggest cities in the wrld.③ “the + 序数词 + 最高级”e.g. I think he is the secnd tallest by in his class.
④f all在所有的当中 He is the tallest f all. Of all the girl in her class, she is the best.就相当于 She is the best f all girls in her class.
3. 比较级和最高级的转换e.g. Tm is the tallest student in the class.= Tm is taller than any ther student in the class.= Tm is taller than all the ther students in the class.= N ther students are taller than Tm.
总结:① any ther + 名词单数 the ther + 名词复数 ② 否定 + 比较级 = 最高级 比较级 + 极限 = 最高级
1. She is ________ than ________. A. busier / us B. busier / we C. mre busy / us D. mre busy / we 2. Jane is ________ than Betty. A. less taller B. less tallest C. less tall D. nt as tall 3. China is ________ cuntry in the wrld. A. the third largest B. the largest third C. the third large D. a third largest
4. — Which is ____ seasn in Beijing? — I think it’s autumn. A. gd B. better C. best D. the best 5. — Which is ____, the sun, the mn r the earth? — The mn is. small B. smaller C. smallest D. the smallest
6. I study English as ____ as my brther. A. hard B. harder C. hardest 7. Which is ____, a bicycle r a cmputer? A. expensive B. mre expensive C. the mst expensive 8. The Yellw River is ne f ______ rivers in China. A. lng B. lnger C. the lngest
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. _______________________________ .
Tw restaurants:_______ and _________1. _______ ____2._______ ____Tw supermarket:_______ and_______ 1.______ _____2._______ ____
Write five questins using cmparisns. Then ask yur partner yur questins.
1. _________________________________2. What is the biggest park in ur twn ? 3. _________________________________4. _________________________________5. _________________________________
What is the highest building in ur city?
Summary 1.复习了形容词和副词的三大级别 2.学习了一些重点单词,短语和句型。 3.学习了形容词和副词的比较级和最高级的用法
1. T memrize the imprtant phrases and sentences. 2. Write a cmpsitin The mst in ur hme twn (at least 10 sentences)
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