八年级英语下册 Unit 7 What's the highest mountain in the world（第3课时）(Grammar Focus-4c)同步语法精讲精练课件 （新版）人教新目标版 (2)

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1、Unit 7Whats the highest mountain in the world?,第三课时(Grammar Focus4c)单元同步语法精讲精练,形容词比较级的句型结构 形容词的比较级than比较对象。前后相比较的两个事物一定要属于同类，而且做比较时，一定要避免自身与自身相比。表示一个范围内两事物的比较用“比较级thanany other单数名词”。 eg：He is taller than any other student in his class.他比班上任何一个学生的个子都高。 as.as.意为“与一样”，其否定形式为“not so/as.as.”，意为“不及；不与一样”。

2、它们也是一种表达比较的形式，注意as与as之间要用形容词或副词的原级。,“the比较级，the比较级”表示“越，越”。 eg：The more you read，the more you know.你书读得越多，你知道的就越多。 “比较级and比较级”表示“越来越”。 eg：Our city is more and more beautiful.我们的城市越来越漂亮了。 修饰比较级可用much，a little，even，still，a lot等。 【注意】当比较级后有of the two.之类的短语时，比较级前要加定冠词the。 二者在选择疑问句中，常用句型： Which/When/Whob

3、e形容词比较级，A or B?,形容词最高级的句型结构 “主语bethe形容词最高级in/of范围”表示“在某范围内最”。 “one ofthe形容词最高级可数名词复数”表示“最的之一”。 “the序数词(除了first)形容词最高级可数名词单数”表示“第几(大，长等)”。 eg：The Yellow River is the second longest river in China.黄河是中国的第二长河。,选择疑问句中，常用句型：Which/Who.the形容词最高级，A，B or C? 【注意】形容词最高级前通常要加定冠词the。但前面若有物主代词，指示代词或名词所有格等修饰时，不能用定

4、冠词the。 形容词最高级常与介词in或of引导的短语连用，与in连用意为“在内，”表示“在某范围内”，不一定是同类；与of连用表示“属性”，介词后的名词或代词与句中的主语是同一类人或物，意为“在某一类中”。,一、根据句意，用括号中所给单词的适当形式填空。 1Which is the _(large)，the sun，the earth or the moon? 2My sister is _(good) at playing the piano than me. 3A basketball is much _(big) than a tennis ball. 4Do you know whi

5、ch is _(large) middle school in your city? 5The black shirt is _(cheap) than any other shirt in this store. 6I think keeping healthy is _(important) thing in our lives. 7I think the black box is the _(heavy) of the five. 8There are no manmade objects as _(great) as the Great Wall.,largest,better,big

6、ger,the largest,cheaper,the most important,heaviest,great,二、单项选择。 9Do you know that China is one of _ countries in the world？(黄冈中考) Yes，I do.Its much _ than the US. Aoldest；olderBthe oldest；older Cthe oldest；elder Dthe older；elder 10This camera is too expensive.Id like a _ one.(青岛中考) Acheap Bcheaper

7、 Ccheapest Dmore expensive 11Lisa was still very weak when she left hospital.But after a weeks rest，she felt much _ and went back to school.(南京中考) AgoodBbetter CbadDworse,B,B,B,12The world is becoming _ So it is，because the Internet gets us closer.(营口中考) Abigger and bigger Bsmaller and smaller Csmallest and smallest Dbiggest and biggest 13Of all the flowers in this garden，I think roses are _(葫芦岛中考) Apretty Bprettier Cthe prettier Dthe prettiest,B,D,