【文章內容簡介】 列句子中填入than,as ,of table is as big _____ that red book is bigger _______ the blue is the best student _______ the lesson is more interesting ________ that apple is the largest _________ all the apples.第二篇：2018八年級上冊英語語法《形容詞的比較級和最高級》形容詞的比較級和最高級一、比較級的定義：大多數(shù)的形容詞都有三個級別：原級、比較級、最高級。其中比較級表示“更……”，用于兩者之間的比較，用來說明“前者比后者更……”，比較級前面一般用much, even, a little修飾，其中even, much 只能修飾比較級。二、比較級的構成：（1）規(guī)則變化：①單音節(jié)和部分雙音節(jié)的形容詞一般在詞尾加er Eg: calmcalmer talltaller smartsmarter ②以字母e結尾的直接在詞尾加rEg: nicenicer finefiner largelarger ③以“輔音+y 結尾的詞，變y為 i，再加er”Eg: earlyearlier happyhappier busybusier ④以重讀閉音節(jié)的單個輔音字母結尾的詞，雙寫輔音字母，再加erEg: bigbigger thinthinner hothotter ⑤多音節(jié)或部分雙音節(jié)的形容詞在原級前面加moreEg: popularmore popular importantmore important（2）不規(guī)則變化：少數(shù)形容詞的比較級變化是不規(guī)則的：good→better→best well→better→bestbad→worse→worstill→worse→worst old→older/elder→oldest/eldest many/much→more→most little→less→least far →further/farther→ furthest/farthest三、比較級的用法:(一)當兩個人或事物（A和B）進行比較時，我們需要用到形容詞（副詞）的原級或者比較級1．表達“A和B一樣”，用as…as的結構。公式: A+be動詞+as+形容詞原級+as…+B。A+實義動詞+as+副詞原級+as…+BEg:I am as tall as 。He runs as fast as 。2．表達“A不如B”用not as…as的結構。公式: A+be動詞的否定形式+as+形容詞原級+as…+B。A+助詞的否定形式+動詞+as+形容詞原級+as…+B Eg:I am not as tall as 。He doesn’t run as fast as 。3．表達“A大于B”用“比較級+than”的結構。公式: A+be動詞+形容詞比較級+than+B…。A+實義動詞+副詞比較級+than+B… Eg：I am taller than 。He runs faster than 。(二)關于形容詞、副詞比較級的更多用法1．比較級前面可以加上表示“優(yōu)劣程度”的詞或短語，是“更…”，“…得…”。常見much, a little, even, a lot, a great deal等。Eg：He is much taller than 。I jump a little higher than 。想一想，這些詞能修飾形容詞或副詞的原級嗎？,表示具體“大多少”，“小多少”，“長多少”，“短多少”等。Eg：I am two years older than 。This building is 20 meters higher than that ．“比較級+and+比較級”表示“越來越……”。It is getting warmer and warmer．天氣越來越暖和。He is running faster and faster．他跑得越來越快。0ur country is being more and more beautiful．我們祖國越來越美了。4．“the more…，the more…”表示“越……，就越……”，The more，the 。The more careful you are,the fewer mistakes you will ，犯錯就越少。5．“the more…of the two…”表示“兩個當中較。的一個”The taller of the two boys is my 、當三個或三個以上的人或事物進行比較時，我們需要用到形容詞（副詞）的最高級1．表達“…是…中最…的”,用“the+形容詞（副詞）的最高級”的結構。后面可以加上表示范圍的介詞短語或從句。公式：主語+be動詞+the +形容詞最高級+（名詞）+表示范圍的介詞短語或從句主語+實義動詞+（the）+形容詞最高級+表示范圍的介詞短語或從句Eg:He is the tallest(student)in our jumps the highest of the three is the best book that I have ever ．表示“最…的…中一個”，用“one of +the +最高級+復數(shù)名詞”的結構來表達。Eg：He is one of the best students in our 。This is one of the most beautiful flowers in the 。注意：(一)形容詞的最高級前面有定冠詞the , 而副詞的最高級前面定冠詞the可以省略。但在形容詞最高級前有物 1主代詞時，不能要定冠詞the.（二）常見的用來表示范圍的介詞有in, of, among五、運用形容詞、副詞比較級應當注意的問題：(一)、按語法規(guī)則，than后面的人稱代詞應當用主格，但口語當中有時會用賓格代替主格。Eg：He is more careful than I(me).(二)、只有同類的事物才能比較Eg：Her bag is bigger than Her bag is bigger than weather of Kunming is much better than that of weather of Kunming is much better than :(1)形容詞最高級前通常必須用定冠詞 the，副詞最高級前可不用。例句: The Sahara is the biggest desert in the world.(2)形容詞most前面沒有the，不表示最高級的含義，只表示“非?！薄t is a most important problem.=It is a very important 、形容詞、副詞的比較級和最高級的用法1.“A + be +形容詞比較級 + than + B” 意思為“A比B更……”。如:This tree is taller than that 。注意: ① 在含有連詞than的比較級中，前后的比較對象必須是同一范疇，即同類事物之間的比較。②be+...year(s)older thanI am two years older than him2.“比較級 + and + 比較級”或“more and more +原級”表示“越來越……”如:It is getting warmer and warmer when spring ，天氣變得越來越暖和了。The wind bees heavier and 。Our town is being more and more 。，如果有兩者供選擇，前面的形容詞要用比較級形式。如:Who is taller,Tim or Tom? 誰更高，Tim還是Tom? 4.“the +比較級……, the+比較級”，表示“越……越……”。The more money you make, the more you ，花得越多。The sooner，the 。: ①.A is …times the size /height/length/width of :The new building is three times the height of the old 。(新樓是舊樓的四倍高)②.A is …times as big /high/long/wide/large as :Asia is four times as large as 。(亞洲比歐洲大三倍)③.A is …times larger /higher/longer/wider than :Our school is twice bigger than 。、副詞的最高級形式主要用來表示三者或三者以上人或事物的比較，表示“最……”的意思。句子中有表示范圍的詞或短語。如:of the three, in our class等等。如:Of the three, he is the most is the tallest in our .“否定詞語+比較級”，“否定詞語+ so… as”結構表示最高級含義。Nothing is so easy as this.=Nothing is easier than this.=This is the easiest : 比較級+than+any other+單數(shù)名詞Mike is the tallest in his istallerthan any other student in his class 1)可修飾比較級的詞a bit, a little, much, a lot, even 注意: 使用最高級要注意將主語包括在比較范圍內。(錯)Tom is the tallest of his three brothers.(對)Tom is the tallest of the three )下列詞可修飾最高級:by far(非常,遠遠超過,遠比), far, much, mostly, almost。This hat is nearly / almost the : ，用于形容詞最高級前，以加強語氣(完全地，真正地)This is the very 。Africa is the second largest 。(錯)He is more cleverer than his brother.(對)He is more clever than his brother.(對)He is cleverer than his brothe。(錯)China is larger that any country in Asia.(對)China is larger than any other country in ，遵循前后一致的原則。The population of Shanghai is larger than that of is easier to make a plan than to carry it ，后有名詞的時候，前面才有可能有名詞。比較:Which is larger, Canada or Australia? Which is the larger country, Canada or Australia?She is taller than her two is the taller of the two 用所給詞的正確形式填空： ran __________ than all the ran ___________ of all.(fast) played as __________ as played ___________of all.(well) waited ____________ than she usually did.(long) walked ___________ than the walked ___________ of all.(far) friend came ____________ than Pual and Mike.(late) the three boys he works ____________.(hard) left school __________ in his class yesterday.(late) swims as __________ as I do.(badly) did ___________ in the 100metre race, Jim or Tim?(badly) Li Ming and Li Hong sang __________, but I sang ___________ of all.(badly) is as ___________ as is _________ than is __________ of all.(fat) Li found _____________ mushrooms than I did.(many) elephant is ____________ than any other animals.(big) is ____________ than animals.(much clever) Two is a bit ____________ than Lesson One.(easy)’m ___________ boy under the sun.(happy) is ____________ than yesterday.(hot) elephant is ___________ than a is __________