七年级unit7课时3VIP免费

Period3clothesboyMr.apairofshoessalestorepricebuysell50元现价10元原价50元BeanNumbersPresentationteneleventwelvethirteenfourteenfour+teen→16sixteen17seventeen19nineteenfifteeneighteentwentytwen+ty→thirtythir+ty→40forty50fifty60sixtytwenty-onethirty-twosixty-seven1.基数词的表达1)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ahundred，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三十三个鸡蛋基数词表达1--12onetwothreefourfivesixseveneightnineteneleventwelve13--19thirteenfourteenfifteensixteenseventeeneighteennineteen20,30twentythirty20--30twenty-onetwenty-twotwenty-threetwenty-fourtwenty-fivetwenty-sixtwenty-seventwenty-eighttwenty-nine基数词的基本表达法例词1-12的单词拼写需格外注意。onetwothreefourfivesixseveneightnineteneleventwelve13-19在3-9后加后缀-teen构成，单词有两个重音，对于13,15,18要特殊记忆。thirteenfourteenfifteensixteenseventeeneighteennineteen30-90各整十位数都以-ty结尾。twentythirty20-100之间其他各数要在十位和个位之间加连字符构成。twenty-onetwenty-twotwenty-threetwenty-fourtwenty-fivetwenty-sixtwenty-seventwenty-eighttwenty-nine基数词，不难记，找出规律很容易：零至十二形各异，一个一个单独记。如果表示是“十几”，后面要加-teen。Thirteen，fifteen形异需留意，eighteen只有一个t。表示“几十”要加-ty，twenty，thirty是特例。表示数字“几十几”，连字符号别忘记。1aListenandrepeat.10111213141516171819202122232425262728293031Writethenumbersin1anexttothecorrectword.Whichrowsofnumbersareinthewrongplaces?1bten__eleven__twelve__thirteen__fourteen__twenty-five__twenty-six__twenty-seven__twenty-eight__twenty-nine__twenty__twenty-one__twenty-two22twenty-three__twenty-four__fifteen__sixteen__seventeen__eighteen__nineteen__thirty__thirty-one__101112131425262728292021232415161718193031Listenandcirclethenumbersyouhearin1a.1c10111213141516171819202122232425262728293031Listenagain.CirclethethingsinthepicturethatKateandhermomtalkabout.Check(√)thethingKatebuys.1d√1ePairworkHowmuchisthebluesweater?It’s15dollars.Askandanswerquestionsaboutthethingsinthepictureabove.Howmuchis/are…?It’s…/They’re…1.askirt___3.socks___5.shorts__2.asweater___4.trousers____6.shoes__Howmuchdoyouthinkthesethingscost?Matcheachclothingitemwithaprice.Thinking2abafedca.$3c.$30e.$22b.$15d.$20f.$25Readtheadandfillthepricetags.Mr.Cool’sClothesStoreComeandbuyyourclothesatourgreatsale!Wesellallourclothesatverygoodprices.Doyoulikesweaters?Wehaveredandgreensweatersforonly$15!Yellowsweatersareonly$12!Doyouneedtrousers?Forboys,wehaveblacktrousersforonly$22.Andshortsareonly$16!Forgirls,wehaveskirtsinpurpleforonly$20.Howmuchareourjackets?Only$30!Andwehaveblackshoesforonly$28.Socksareonly$2forthreepairs！CometoMr.Cool’sClothesStorenow!2b阅读指导:首先，读短文过程中，可用“___”划出广告中所售的衣物，并用“”圈出该物品的价格。然后，看图片中的物品并注意其颜色，与短文中所描述的物品相对应。最后，将衣物名称与价格一一对应，填入价签中。3.buy用作动词，意为“买”，常用短语为：b...