八年級英語上Units3-4形容詞和副詞的比較級與最高級

1、形容詞和副詞的形容詞和副詞的 比較級和最高級比較級和最高級8a-Units3-4 bigbiggerLook at the pictures and Look at the pictures and understand understand 看圖并理解Look at the pictures and Look at the pictures and understand understand 看圖并理解bigbiggerbiggestfastLook at the pictures and Look at the pictures and understand understand 看圖并理

2、解fastfasterLook at the pictures and Look at the pictures and understand understand 看圖并理解fastfasterfastestLook at the Look at the pictures pictures and understand and understand 看圖并理解一、形容詞和副詞的原級、比較級、最高級的含義大多數形容詞和副詞有三個等級：原級、比較級和最高級。1.原級，及原形；2.比較級，表示“更”,用于兩者（人或事物）之間的比較；3.最高級，表示“最”，用于三者或者三者以上（人或事物）之間的比較

3、。補充補充1 1：由由“動詞動詞+后綴后綴-ing / -ed ”構成的形構成的形容詞，在詞前加容詞，在詞前加eresting-more interestingmost interesting exciting-more excitingmost exciting bored-more bored most exciting relaxed-more relaxed most relaxed補充補充2 2：由形容詞由形容詞+后綴后綴 -ly 構成的副詞，在該副構成的副詞，在該副詞前加詞前加more most. slowly-more slowlymost slowly

4、happily-more happily most happily differently-more differently most differentlyimportant _ _ easy_ _ wet_ _ happy_ _ careful _ _ thin _ _ good_ _ hot _ _ easily _ _ many_ _ nice _ _ big _ _heavy_ _delicious_ _much_ _給出下列詞的比較級和最高級給出下列詞的比較級和最高級 more importantmost importanteasiereasiestwetterwettesthap

5、pierhappiestmore carefulmost carefulthinnerthinnestbetterbesthotterhottestmore easilymost easilymoremostnicernicestbiggerbiggestheavierheaviestmore deliciousmost deliciousmoremost見英語書見英語書P115形容詞和副詞的比較級和最高級的用法形容詞和副詞的比較級和最高級的用法 及常及常用用句型：句型：（1）前者程度超過后者用）前者程度超過后者用比較級比較級： A+比較級比較級+than+ B He is taller th

6、an she.形容詞的比較級可以有much,a little ，a lot ,even, far 等表示程度的詞來修飾，用以加強語氣。 You look a little thinner than last year. （2）三個或三個以上比較用三個或三個以上比較用最高級最高級： A+ (the) +最高級最高級+of/in+范圍范圍 He is the tallest in his class.More examples:1.He is the youngest of all the children.2.The Changjiang River is the longest river i

7、n China.3.The city is one of the most beautiful cities in the world.4.Lucy is one of the tallest girls in her class.5.Give my best wishes to you.6.He is my best friend.1 He gets up a little_ than I. (early)2 You do the work _ than Tom. (well)3 She is much _ than her brother. (short)4 This picture is

8、 _ than that one .(beautiful)5 Which is _,the sun or the moon? (big)earlierbettershorter more beautifulbigger用所給形容詞或副詞的適當形式填空：用所給形容詞或副詞的適當形式填空： 1. 這個盒子比那個重。這個盒子比那個重。 This box is _ _that one. 2. 你下次一定要做得更好。你下次一定要做得更好。 You must _ _next time. 3.誰想去最遠的那個公園誰想去最遠的那個公園? Who wants to go to _ _ park? 4.你的妹妹看

9、起來比以前要高得多你的妹妹看起來比以前要高得多Your sister looks than before.heavier than do betterthe farthest完成句子：完成句子：much tall四、形容詞或副詞比較級特殊用四、形容詞或副詞比較級特殊用法法1.“比較級+and+比較級”或“more and more + 原級（多音節(jié)或部分雙音節(jié)詞）”意為“越來越.”。 My brother is taller and taller. Our city is becoming more and more beautiful. He is running more and more

10、 slowly.2.“the + 比較級+句子，the +比較級+句子”意為“越.,就越.”. The more you read,the more you know. The more vegetables you eat,the healthier you will be.3.“the +比較級+of the two”表示“兩個中比較.的”。 The blue sweater is the cheaper of the two. 這件藍色的毛衣是兩個中比較便宜的。 The little boy is the taller of the two.4.“比較級+than any other+單

11、數名詞”表示“比任何其他的.都.”. Tom is taller than any other boy in his class. Tom比他們班里其他任何一個男孩都高。 The red ball is bigger than any other ball in the box.5. “Which / Who is +比較級 ，A or B ? ” A和B中哪一個/誰更. Which is bigger ,the sun or the moon? Who is more beautiful , Lily or Lucy?6.表示“大幾歲”、“長幾米”之類的比較級時，用 “數量+比較級+than

12、”。 I am two years older than my brother.This street is 100 meters longer than that one. He is two centimeters taller than me.7 .表示表示“是是的幾倍的幾倍”，用，用“倍數倍數+as+原級原級+as”結構，或者結構，或者“倍數倍數+比較級比較級+than”結結構。構。 eg: This classroom is three times as big as that one. This classroom is twice bigger than that one.形容詞

13、和副詞比較級的用法形容詞和副詞比較級的用法 1.Who runs faster, he or she?2.He runs faster than she.3.He runs much faster than she.4.He becomes healthier and healthier.5.The more you exercise, the healthier you will be.6.She is less healthy than he.1.表示兩者之間的選擇表示兩者之間的選擇, 可用可用“Which/Who + 比較，比較，or?”.3.much/far/a lot, even ,

14、still ,a little/a bit 修飾比較級修飾比較級,表示程度表示程度.Who runs faster, he or she?He runs faster than she.He runs much faster than she.4. “比較級比較級+and+比較級比較級”表示表示“越來越越來越”5. “the+比較級比較級 , the + 比較級比較級”表示表示“ 越越, 越越 ” 6. 表示不及另一方時，用表示不及另一方時，用“l(fā)ess+原級原級+than” (雙音節(jié)和多音節(jié)詞雙音節(jié)和多音節(jié)詞)He becomes healthier and healthier.The mo

15、re you exercise, the healthier you will be.She is less healthy than he.He is healthier than she.Shanghai is becoming more and more modern.1.The new building is higher than the old one.Those apples are bigger than these ones.2.His shirt is more expensive than mine.如果主語是物主代詞如果主語是物主代詞+名詞，那么后面要用名詞，那么后面要

16、用名詞性物主代詞。名詞性物主代詞。比較級必須在同類中進行，即人與人比，比較級必須在同類中進行，即人與人比，物與物比，而且比較結構前后的詞語要對稱，物與物比，而且比較結構前后的詞語要對稱，特別注意在特別注意在than或或 as 之后不要漏掉可能出現(xiàn)之后不要漏掉可能出現(xiàn)的替代詞的替代詞 that ，those, one ,ones. 五、注意五、注意The weather is hotter in Chongqing than that in Guizhou.3.Kate is more beautiful than Lily is. She is five years older than I

17、am. I drink more tea than he (does).than前后句子的時態(tài)相同。通常用前后句子的時態(tài)相同。通常用be動詞動詞情態(tài)動詞情態(tài)動詞can, may, must, could, should和助動和助動詞詞do, does ,did, will，have等來簡答。等來簡答。4.I have more pens than you (do).many,much,little,few等詞必須帶名詞。等詞必須帶名詞。5.The city is one of the most beautiful cities in the world.one of+ the+最高級最高級+復

18、數名詞復數名詞 Which/Who+ 比較級，比較級，A or B? Which/Who+ 最高級，最高級，A ，B or C?6.Who is older, Jim or Tom ? Who is the tallest, Jim , Mike or Tom Which language is _ , English, French or Chinese?A. difficult B. more difficult C. the most difficultC7. Mary is the tallest of all the sisters in the family .在使用形容詞最高級時

19、，一定要把自己包括在使用形容詞最高級時，一定要把自己包括 在比較的范圍內。在比較的范圍內。8.This is the third largest city in China . 當表示當表示“第二，第三第二，第三”等意思時，經常在最高等意思時，經常在最高級的前面加級的前面加second, third,等詞。等詞。 9.Its our largest machine in our factory. 當最高級前有物主代詞修飾時，其前不加當最高級前有物主代詞修飾時，其前不加定冠詞定冠詞the. 六、原級比較六、原級比較 見英語書見英語書P115P115 as.as.意為意為“與與.一樣一樣.”否定：

20、否定：“not as /so.as.”意為意為“不如不如., ”，或或“與與.不一樣不一樣.”, =“l(fā)ess+形容詞形容詞/副詞副詞+than”.但但as/so.as中間用形容詞或副詞的中間用形容詞或副詞的原級原級。1.This room is as big as that one.2.This room is not as/so big as that one.=This room is smaller than that one.=That room is bigger than this one.Follow ups(隨堂練習)1、-Mr Zhou, all of the studen

21、ts in our group, who lives _? -I think Li Lei does. A. fat B. father C. farthest D. farest2、The Changjiang River is _ than any other river in China. A. shorter B. longer C. shortest D. longest3、Bob never dose his homework _ Mary. He makes lots of mistakes. A. so careful B. as carefully as C. carefully as D. as careful as4、_ she