八年级英语下册《Unit 7 What’s the highest mountainin the world》（第5课时）课件 .ppt

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1、 Unit 7 Whats the highest mountain in the world？(3a-self check)学习目标v1、能听说读写单词：vwhale,oil,protection,huge.v2、能正确运用形容词和副词的比较级和最高级。higherhighestmore dangerousmost dangerouslongerlongestmore popularmost popularbodyBeijingmy wishcrowdedstronger形容词和副词的比较级和最高级形容词和副词的比较级和最高级1.大多数形容词有三个级。大多数形容词有三个级。1)原级原级:常用

2、结构常用结构as.as.像像.一样一样 Zhang Hong is as tall as Tom.张红和汤姆一样高。张红和汤姆一样高。2)比较级比较级(用于用于两者之间的比较两者之间的比较)常用结构：常用结构：形容词比较级形容词比较级than.He is taller than I.他比我高。他比我高。Grammar 3)最高级最高级(用于用于三者或三者以上的比较三者或三者以上的比较)，常用结构常用结构:the+形容词的最高级形容词的最高级of/in.He is the tallest of the three.他是这三个人中最高的。他是这三个人中最高的。He is the funniest

3、in his class.他是他们班最有趣的。他是他们班最有趣的。2.形容词、副词比较级和最高形容词、副词比较级和最高规则变化规则变化和和不规则变化不规则变化。a)规则变化规则变化 1)一般情况下，一般情况下，单音节或双音节的形容词单音节或双音节的形容词（或（或副词副词）比较级比较级er，最高级最高级est 如：如：clevercleverercleverest fewfewerfewest smallsmallersmallest等。等。2)以以e结尾的词结尾的词，比较级比较级r，最高级最高级st 即可。即可。如：如：nicenicernicest cutecutercutest large

4、largerlargest 3)以以辅音字母辅音字母y结尾的结尾的变变y为为ier或或est 如如:easyeasiereasiest happyhappierhappiest 再如：再如：early,busy,heavy,dirty,lazy也也如此。如此。4)双写最后一个辅音字母双写最后一个辅音字母er 或或 est的词的词,同学要用心去记。同学要用心去记。1.fatfatterfattest 2.thinthinnerthinnest 3.hothotterhottest 4.redredderreddest 5.wetwetterwettest 6.bigbiggerbiggest 5

5、)多音节和部分双音节的词多音节和部分双音节的词需要在形容词需要在形容词原级前原级前more构成构成比较级比较级，the most构构成成最高级最高级。如：。如：beautiful more beautiful the most beautiful 又如又如:delicious,popular,important,interesting,expensive,creative双音节双音节的词如的词如:careful more careful the most careful useful more useful the most useful少数单音节词少数单音节词也是这样，如：也是这样，如：pl

6、eased more pleased the most pleased tiredmore tired the most tired b)不规则变化：不规则变化：good better best well better best badworse worst many,much more most far farther farthest (距离远距离远)far further furthest (程度深程度深)old elder eldest (长幼长幼)old older oldest (年龄年龄)课堂小结v形容词和副词的比较级和最高级当堂检测：当堂检测：1.My brother is _

7、 more outgoing than me.A.many B.little C.much2.October 12th was one of _ days in 2005.Shenzhou-VI was launched(发射）发射）successfully.A.exciting B.more exciting C.the most exciting3.Which city is _,Beijing,Shanghai or Fuzhou?A.beautiful B.more beautiful C.the most beautiful4._ children there are in a fa

8、mily,_ their life will be.A.The less,the better B.Fewer,richer C.The fewer,the better5.Mobile phones are very popular now and they are _ than before.A.cheap B.cheaper C.the cheapest6.In our city,its _ in July,but its even _ in August.A.hotter,hottest B.hot,hot C.hot,hotter7.Of the two skirts,the pin

9、k one is _.A.the nicest B.the nicer C.nicer8.Jacks handwriting is as _ as Mikes.A.good B.better C.best9.We can do the work better with _ money and _ people.A.little,few B.less,fewer C.fewer,less10.Jim is the tallest student in our class and Tom is the second _ one.A.tall B.taller C.tallest课后作业v练习册第五课时(43页）