深圳八年级英语上册《Unit 3 Computers Grammar》教学教案.ppt

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1、Period3GrammarModule2ScienceandtechnologyOxfordEnglishUnit3ComputersWillcomputersmakeourlivesbetter?Revisionandintroduction1Completethearticle.Thefirstcomputerswere_________thancars,butnowtheyarebecoming________and_________.Computerscancalculateata_________speedthanwecan.

2、Computersarenot_________thanhumanbeings,buttheymaybeabletodoa_________jobthanus.Inthepast,computerswere_______expensive,butnowtheyaremuch________.cheaperclevererfastersmallerbiggermoreGrammarAThecomparativeofadjectives2Whenwecomparetwopeopleorthings,wecanusethecomparative

3、ofadjectives.betterbetterHowdoweformthecomparativeofadjectives?-ermorethanThefirstcomputerswere_________thancars,butnowtheyarebecoming________and_________.Computerscancalculateata_________speedthanwecan.Computersarenot_________thanhumanbeings,buttheymaybeabletodoa________

4、_jobthanus.Inthepast,computerswere_______expensive,butnowtheyaremuch________.cheaperclevererfastersmallerbiggermorebetterbetterThesmalldogrunsfast.Thehorseruns______thanthesmalldog.fastfasterfastestTheleopardruns__________.fasterthefastestThecowis______thanthesheep.Theele

5、phantis__________ofall.heavyheavierheaviestThesheepisheavy.heaviertheheaviestJimisstrong.LiLeiis.Tomis.strongerthestrongestExerciseThebluecarisnice.Theredcaristhebluecar.(红车比蓝车好看）Thecolourfulcarisofall.（彩色车最好看）nicerthanthenicestHowdoyouliketheseChristmastrees?123ThefirstC

6、hristmastreeisbeautiful.Thesecondoneis____________thanthefirstone.Thethirdoneis________________ofthethree.morebeautifulthemostbeautiful￥500.00￥1000.00￥1500.00Thegreenbagisexpensive.Thewhiteoneis_______________thanthegreenone.Thepurplebagis_________________oneofallthebags.

7、moreexpensivethemostexpensive形容词和副词比较级和最高级的规则变化：形容词或副词原级比较级the+最高级talltallerthetallestnicenicerthenicestearlyearliertheearliest规则变化一般在词尾加-er或-estshortertheshortest以字母e结尾的单词后加-r或-stfinerthefinestheaviertheheaviest以“辅音字母+y”变y为i,再加-er或-estshortfineheavybiggerbigthinhotthethi

8、nnestthinnerthebiggesthotterthehottest以辅+元+辅结尾的，双写尾字母，再加-er/-est长的形容词–多音节或少数双音节形容词，在词前more/moste