新课堂人上正文第2课时section grammar focus3c

语法指津基数词的用法1．含义：表示数量的数词叫基数词。如：

one，two，three，sixteen，twenty-one2．拼写规律：⑴1～12的基数词，应分别记忆。如：

four(4)，seven(7)，eleven(11)，twelve(12)⑵13～19表示“十几”的词，以后缀-teen结尾。如：

thirteen(13)，eighteen(18)⑶20～90表示“几十”的词，以后缀-ty结尾。如：

thirty(30)，forty(40)，eighty(80)，ninety(90)⑷21～99表示“几十几”的词，中间用连词符“-”把十位数和个位数连接起来。如：

twenty-six(26)，eighty-two(82)⑸101～999的三位数，百位数和后面的数之间用and连接。hundred(百)，thousand(千)等词一律用单数形式。如：

101：onehundredandone 999：ninehundredandninety-nine⑹1，000以上的整数，从右向左数，每三位中间点“，”，或空格，第一个“，”或空格前为thousand， 第二个“，”或空格前为million(百万)，第三个“，” 或空格前为billion(十亿)。如：

2，567：twothousandfivehundredandsixty-seven 3，018：threethousandandeighteen3．用法：⑴基数词只能修饰可数名词。如：

oneflower1朵花

ninety-ninetrees99棵树⑵任何一个基数词作主语时，谓语动词用单数形式。Ⅰ．根据句意、首字母及汉语提示完成句子。1．—Howm

arethesetrousers? —They’re35dollars．2．Theshoesarenice．I’llt

them．uchake3．Youcanbuytheshirtforeightd

．4．Thewhitetrousersaretoo

(短的)forJim．5．Iwanttobuya

(一双)ofshoes．ollarsshortpairⅡ．用括号内所给单词的适当形式填空。1．—Howmuch

(be)theseshorts? —30yuan．2．Thatyellowjacket

(look)nice．Ireallylikeit．3．Thetrousersaregood．I’lltake

(it)．4．—Iwantacupofmilk．

—Hereyou

(be)．arelooksthemare5．Theskirtistooshort．Iwant

(get)alongone．6．Howmuch

(be)thatbrownsweater?7．Whatcolor

(do)hewant?8．Howmuchare

(that)trousers?togetisdoesthoseⅢ．完成译句。1．你的红色T恤衫多少钱？

isyour

?2．他的绿色短裤20美元。Hisgreen

twentydollars．HowmuchredT-shirtshortsare3．你的鞋子很长，但我的鞋子很短。Your

are

，butmyshoesare

．4．他想要两双短袜。He

two

ofsocks．shoeslongshortwantspairs5．这些短袜很好。我要买下它们。Thesocks

．I’ll

．6．——你有一件蓝色的毛衣吗？

——给你。

—

youhavea

? —

．areverygoodtakethemDobluesweaterHereyouareⅣ．单项选择。()1．Thatsweater

sevendollars．A．isB．amC．areD．beAA()2．—Howmucharethe

? —They’re40yuan．A．shoesB．shortsC．socksD．trousers()3．TheT-shirtisverynice．I’lltake

．A．socksB．thisC．itD．themC()4．—

isyournewskirt? —It’syellow．A．WhereB．WhatC．HowmuchD．WhatcolorD()5．—

? —They’re5dollars．A．HowmanyarethesesocksB．HowmucharethesesocksC．WhatcoloraretheseD．HowmuchisthesesockB()6．—CanIhelpyou? — ．A．ThankyouB．Yes，please．IneedamapC．You’reeD．ExcusemeB()7．—Doyouhaveapencil? —Yes． ．A．ThankyouB．HereisitC．HereyouareD．YouareeC()8．—Arethebluepantssevendollars? —

．Theyareeightdollars．A．Yes，itisB．No，itisn’tC．Yes，theyareD．No，theyaren’tD()9．—Howmuchisthebrownskirt? —

．A．TendollarB．TwentyoneyuanC．Twenty-onedollarsD．TenyuansC()10．—CanIhelpyou? —I’dlike

formydaughters．A．twopairofshoesB．twopairsofshoeC．twopairofshoeD．twopairsofshoesDⅤ．句型转换。1．Thequiltisthirtydollarsforoneandfiftydollarsfortwo．(对画线部分提问)

isthequilt?2．CanIhelpyou？(改为同义句)

canIdo

you?HowmuchWhatfor3．Marywantsaredskirt．(对画线部分提问)

Mary

？4．Bobneedsapairofsportsshoes．(改为否定句)Bob

apairofsportsshoes．5．Hereyouare．(写出答语)

．Whatdoeswantdoesn’tneedThankyouⅥ．阅读理解。

Mariaisabeautiful(漂亮的)girl．Shehaslotsof(许多)niceclothes．Shehasfivesweaters．

Theyareyellow，orange，red，blackandgreen．Theyare80yuaneach(每个)．

Andshehasnineskirts．Butnone(一个也没有)ofthemiswhitebecauseshedoesn’tlikewhite．Eachskirtis79yuan．Shealsohasmanyshoes，T-shirts，hatsandsocks．Mariadoesn’tliketrousers，soshedoesn’thavemanytrousers．()1．Mariahas

greensweater．A．fiveB．nineC．oneD．sixC()2．Mariadoesn’thave

．A．ayellowsweaterB．awhiteskirtC．ahatD．shoesB()3．Threesweatersare

yuan．A．80B．79C．240D．60C()4．Mariahaslotsof

．A．trousersB．T-shirtsC．whiteclothesD．booksB()5．Askirtandasweaterareyuan．A．160B．158C．159D．260CⅦ．补全对话。从方框中选择恰当的词，并用其适当形式填空。A：CanI1you?B：Yes，

2．I3someclothes(服装)．Doyouhavetrousers?A：Yes，wedo．We4blacktrousers，redtrousersandbluetrousers．Doyoulikethem?B：Yes，Ido．Iwanttheblacktrousers．How

5arethey?A：Theyarethirty-one6．B：Doyouhave7?A：Yes，wedo．Thegreenshortsarefifteendollars．B：ButIdon’tlikegreen．Howaboutthoseblueshortsonthetable?Howmucharethey?A：Nineteendollars．Andthoseblacko