初中英语人教版七年级下册unit 7 SectionB.ppt

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1、Unit7Howmucharethesesocks?SectionBPeriodOneReviewWordsandexpressionsReadthewordsandexpressionsloudly.teneleventwelvethirteenfourteenfifteeneighteentwentythirty十十一十二十三十四十五十八二十三十WordsandexpressionsObjectivesTolearnthewordsofnumbersTolistentofindoutthethingsthatKateandhermomtalkabout1aListen

2、andrepeat.1bWritethenumbersin1anexttothecorrectwordbelow.Whichrowsofnumbersareinthewrongplaces?1cListenandcirclethenumbersyouhearin1a.onetwothreefourfivesixseveneightnineteneleventwelvethirteenfourteenfifteensixteenseventeeneighteennineteentwentythirtyfortyfiftysixtyseventyeightyninetytwe

3、nty-one…twenty-ninethirty-one…thirty-nineforty-one…forty-ninefifty-one…fifty-ninesixty-one…sixty-nineseventy-one…seventy-nineeighty-one…eighty-nineninety-one…ninety-ninehundredLearnthesenumbersandfindouttherules:数字小结：two----twelve----twentythree---thirteen---thirtyfour---fourteen---fortyf

4、ive---fifteen---fiftysix---sixteen---sixtyseven---seventeen---seventyeight---eighteen---eightynine---nineteen---ninetyone----ten---onehundred1:1---12:(记住每个单词)2:13---19:-teen(thir-,fif-,eigh-)3:20---90:-ty(twen-,thir-,for-,fif-,eigh-)4:21---99:十位__个位5:100---900:_______hundred6:101---999:__

5、_____hundredand__个位十位____个位小结:1.基数词的表达one到twelve，拼写和读音无规律可言，只能逐一记忆。2)thirteen到nineteen，表示“十几”，在个位数后加后缀-teen，其中要注意thirteen,fifteen和eighteen的拼写。3)twenty到ninety，表示“几十”，以ty结尾，但需注意twenty,thirty,forty,fifty,eighty的拼写。4)21~29直到91~99，表示“几十几”,用整十位数加个位表示,中间用连字符“-”把十位和个位连接起来。5)onehundred意为“一百”，也可说ah

6、undred，hundred可加具体数字，如ninehundred(900)。2.基数词的用法：基数词只能修饰可数名词，要注意数词和名词在数上要保持一致。如：onestudent一名学生twoboys两名男孩twentyapples二十个苹果thirty-threeeggs三十三个鸡蛋一、填表格，记数字。101115tenthirteentwelve201830sixteennineteen262839twenty-onethirty-fiveeleven13fifteen12twenty16eighteen19thirtytwenty-six21twenty-eight

7、35thirty-nineExercises二、做数学题，学英语。1.twenty-six-twelve-nine=_______2.sixteen＋eight＋eleven=_________3.eighteen-seven＋fifteen=___________4.thirteen＋fourteen-twenty-five=_____5.twenty-nine-thirteen-ten=_________6.thirty-nine-twenty-five=_________7.twelve＋thirteen-fifteen