七年級上冊Unit7Howmucharetheseclothes?GrammarFocus語法專項講解和練習語法精講如何詢問價格詢問價格的句型為“Howmuchis/are...?”.1.“Howmuchis...?”常用來詢問單數(shù)名詞或不可數(shù)名詞的價格,對此問句進行回答時常用句型為“It's+價格.”。2.“Howmuchare...?”常用來詢問復數(shù)名詞的價格,對此問句進行回答時常用句型為“They're+價格.”。如:Howmucharetheseshoes?這些鞋子多少錢?Theyare18dollars.它們18美元。詢問物品的價格還可以用句型“What'sthepriceof...?”。使用這一句型時,不管所詢問的物品是單數(shù)還是復數(shù)，be動詞都用is,其答語都用“It's..."基數(shù)詞的記憶規(guī)則及用法1.基數(shù)詞的記憶規(guī)則;(1)0~12這13個數(shù)字獨立成詞,要單獨記憶。它們分別是:zero,one,two,three,four,five,six,seven,eight,nine,ten,eleven,twelve。(2)13~19都是以“個位數(shù)+teen”構成，fourteen,sixteen,seventeen,nineteen為個位數(shù)直接加-teen構成;thirteen,fifteen,eighteen的拼寫需特殊記憶。(3)20~90整十位數(shù)的基數(shù)詞由相應的個位數(shù)后加-ty構成。sixty,seventy,ninety為個位數(shù)直接加-ty構成;twenty，thirty,forty,fifty,eighty的拼寫需特殊記憶。(4)21~99的兩位數(shù)的表達是整十位數(shù)加個位數(shù),中間加上連字符“-”。如:twenty-one,forty-two。(5)100可以寫成ahundred或onehundred.一般hundred不用復數(shù)形式。如:twohundred,threehundred。2.基數(shù)詞的用法:(1)表示年齡,基數(shù)詞放在year(s)old之前。Heistwelveyearsold.他12歲。(2)用來表示人或物的數(shù)量,放在名詞之前。Ihavethreeballs.我有3個球。(3)表示順序、編號等,放在名詞之后。I'minClassFour.我在4班。(4)用來計算。—What'sfortyandtwenty?40加20是多少?—It'ssixty.是60。(5)基數(shù)詞作主語時,謂語動詞用單數(shù)形式。Sixandninetyisninety-six.6加90是96?！窘滩牡渚洹?.“這頂帽子多少錢?”“它5美元。”(P39)—_____________________thehat?—_______fivedollars.2.“這些短襪多少錢?”“它們2美元?！?P39)—_____________________thesesocks?—_______twodollars.語法精練一、用is,are,it's或they're填空。1.—Howmuch_______thatgreenbag?—_______$25.2.—Howmuch_______theseredshoes?—_______$45.3.—Howmuchtheice-cream?—_______$5.4.—Howmuch_______thosebananas?—_______tenyuan.二、按要求完成句子。1.Thesesocksaretwodollars.(對畫線部分提問)_____________________thesesocks?2.Sixty-twoandthirty-eightisonehundred.(對畫線部分提問)______________sixty-twoandthirty-eight?3.Howmuchistherice?(同義句轉換)____________________________therice?4.Howmuchisthiscomputer?(改為復數(shù)句)Howmuch_____________________？三、根據(jù)漢語提示完成下列句子。1.“那件藍色的夾克衫多少錢?”“98元。”—_____________________thatbluejacket?—_______98yuan.2.玲玲的媽媽39歲。Lingling'smotheris_____________________.3.邁克在8班。Mikeisin______________.4.三雙襪子僅5美元。______are______$5_______________________.參考答案：[教材典句]1.Howmuchis;It’s2.Howmuchare;They’re語法精練一、用is,are,it's或they're填空。1.is;It’s2.are;They’re3.is;It’s4.are;They’re二、按要求完成句子。1.Howmuchare2.Whatis3.What’sthepriceof4.arethese