八年級英語下冊 Unit 7 What's the highest mountain in the world（第3課時(shí)）(Grammar Focus-4c)同步語法精講精練課件 （新版）人教新目標(biāo)版 (2)

Unit 7Whats the highest mountain in the world?,第三課時(shí)(Grammar Focus4c)單元同步語法精講精練,形容詞比較級的句型結(jié)構(gòu) 形容詞的比較級than比較對象。前后相比較的兩個(gè)事物一定要屬于同類，而且做比較時(shí)，一定要避免自身與自身相比。表示一個(gè)范圍內(nèi)兩事物的比較用“比較級thanany other單數(shù)名詞”。 eg：He is taller than any other student in his class.他比班上任何一個(gè)學(xué)生的個(gè)子都高。 as.as.意為“與一樣”，其否定形式為“not so/as.as.”，意為“不及；不與一樣”。它們也是一種表達(dá)比較的形式，注意as與as之間要用形容詞或副詞的原級。,“the比較級，the比較級”表示“越，越”。 eg：The more you read，the more you know.你書讀得越多，你知道的就越多。 “比較級and比較級”表示“越來越”。 eg：Our city is more and more beautiful.我們的城市越來越漂亮了。 修飾比較級可用much，a little，even，still，a lot等。 【注意】當(dāng)比較級后有of the two.之類的短語時(shí)，比較級前要加定冠詞the。 二者在選擇疑問句中，常用句型： Which/When/Whobe形容詞比較級，A or B?,形容詞最高級的句型結(jié)構(gòu) “主語bethe形容詞最高級in/of范圍”表示“在某范圍內(nèi)最”。 “one ofthe形容詞最高級可數(shù)名詞復(fù)數(shù)”表示“最的之一”。 “the序數(shù)詞(除了first)形容詞最高級可數(shù)名詞單數(shù)”表示“第幾(大，長等)”。 eg：The Yellow River is the second longest river in China.黃河是中國的第二長河。,選擇疑問句中，常用句型：Which/Who.the形容詞最高級，A，B or C? 【注意】形容詞最高級前通常要加定冠詞the。但前面若有物主代詞，指示代詞或名詞所有格等修飾時(shí)，不能用定冠詞the。 形容詞最高級常與介詞in或of引導(dǎo)的短語連用，與in連用意為“在內(nèi)，”表示“在某范圍內(nèi)”，不一定是同類；與of連用表示“屬性”，介詞后的名詞或代詞與句中的主語是同一類人或物，意為“在某一類中”。,一、根據(jù)句意，用括號中所給單詞的適當(dāng)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 which 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,bigger,the largest,cheaper,the most important,heaviest,great,二、單項(xiàng)選擇。 9Do you know that China is one of _ countries in the world？(黃岡中考) 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.(青島中考) Acheap Bcheaper 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.(營口中考) Abigger and bigger Bsmaller and smaller Csmallest and smallest Dbiggest and biggest 13Of all the flowers in this garden，I think roses are _(葫蘆島中考) Apretty Bprettier Cthe prettier Dthe prettiest,B,D,