Unit3 语法讲解及练习 人教版英语八年级上册.docx

1、八年级上册unit3语法知识讲堂形容词、副词的比较级 比较级用于两者(人或事物)的比较，突出其中一个。在上下文明确的情况下，比较级也可单独使用。 【例句】Tom is taller than Jack.汤姆比杰克高。 【例句】Kates room is nice and her mothers room is nicer. 凯特的房间很漂亮，她母亲的房间更漂亮。 【例句】This box is bigger than that one. 这个箱子比那个箱子大。 【例句】The first question is very difficult. But the second one is mor

2、e difficult. 第一个问题很难，但第二个问题更难。2.比较级的构成(1)单音节词和部分双音节词比较级的变化规则:一般在词尾加-er。【例句】talltaller 【例句】youngyounger【例句】longlonger 【例句】hardharder以字母e结尾的词,在词尾加-r。【例句】finefiner 【例句】whitewhiter 【例句】latelater重读闭音节词词尾只有一个辅音字母时，应先双写该辅音字母，通加-er。【例句】bigbigger 【例句】thinthinner以辅音字母加y结尾的双音节词，先把y变为i，再加-er。【例句】easyeasier 【例句】

3、heavyheavier 【例句】earlyearlier(2)多音节词和部分双音节词的比较级直接在词前加more。【例句】usefulmore useful 【例句】beautifulmore beautiful【例句】comfortablymore comfortably(3)某些形容词或副词的比较级变化是不规则的。【例句】good wellbetter 【例句】bad/badlyworse【例句】many/ muchmore 【例句】littleless 【例句】farfarther/ further3.比较级前的修饰语为了加强语气，说明程度，可在比较级前加much, a lot, a

4、little等。【例句】Our room is much bigger than theirs.我们的房间比他们的大多了。【例句】I feel a lot better now.现在我感觉好多了。【例句】He is a little shorter than me.他比我矮一点儿。4.比较级的特殊句式(1)as.as.表示“和一样”为同级比较的句型。【例句】Jenny draws as well as Danny.珍妮和丹尼画得一样好。(2)“比较级+and+比较级”表示“越来越”。【例句】He is getting taller and taller.他变得越来越高。【例句】These fl

5、owers are more and more beautiful. 这些花越来越漂亮。(3)“the+比较级. ,the+比较级.表示“越，就越”【例句】The more careful you are, the fewer mistakes youll make.你越认真，你犯的错误就越少。(4)当两者比较只出现一方，且含有of the two或often twins等结构时，比较级前要加the,意为“两者中较的一个”。 【例句】Look at the two boys. My brother is the taller of the two.看那两个男孩。我弟弟是两个中较高的那个。1.H

6、ow are you today?Im feeling much (bad) than yesterday.2.The (deep) you are in understanding, the better youll be in your work.3.The actress is in her forties. I thought she was much (young)!4.Sandy can sing as (good) as Wendy.5.Im as tall as my cousin although hes than me.A.old B.older C.oldest D.yo

7、ung6.He landed at the same place once again in the long jump. I dont think he can jump a little .A.far B.farther C.farthest7.How are you feeling today, boy?Im feeling much , thanks.A.good B.well C.better D.best8.Air pollution has become than ever before. We must do something to stop it.A.serious B.more serious C.most serious D.the most serious9.I think Chinese is than any other subject.A.easy B.easier C.easiest D.easily10.Our school is bigger than .A.theirs B.their C.them D.they答案1.worse 2.deeper 3.younger 4.well 5-10:BBCBBA