人教版 七年級(jí)上冊(cè) 英語(yǔ)知識(shí)點(diǎn) 全 第七單元 unit 7 知識(shí)點(diǎn).doc

人教版 七年級(jí)上冊(cè) 英語(yǔ)知識(shí)點(diǎn) 全 第七單元 unit 7 知識(shí)點(diǎn)教學(xué)重、難點(diǎn)1、會(huì)用英語(yǔ)談?wù)撐锲奉伾?、價(jià)格及對(duì)服裝的好惡。 2、掌握購(gòu)物時(shí)的禮貌用語(yǔ)。1、 重點(diǎn)詞匯：much,sock,T-shirt,shorts,sweater,trousers,shoe,skirt,dollar,big,small,short,long,woman,need,look,pair,take, ten-thirty, price, buy, sale, sell, clothes.2、 短語(yǔ)歸納：1. how much 多少錢(qián) 2. seven dollars 7美元 3. white bag 白色的包4. clothes store 服裝店 5. at very good price 以很低的價(jià)格 6. for boys 對(duì)于男孩子7. shirts in red 紅色的裙子 8. twenty-eight dollars 28美元 9. Big Sale！大降價(jià)10. twenty yuan 20元 11. a pair of black shoes 一雙黑色的鞋子 3、How much is this T-shirt? how much 通常用來(lái)對(duì)價(jià)格進(jìn)行提問(wèn),意為“多少錢(qián)”。常構(gòu)成句式“How much is/are+物品?”,回答用“Its /Theyre+價(jià)格”。/ 直接用價(jià)格來(lái)回答。How much is your sweater? / How much are these trousers?Its 123 dollars./123 dollars. / Theyre 130 yuan.】對(duì)價(jià)格進(jìn)行詢問(wèn)時(shí),還可用：Whats the price of ?使用這一句型時(shí),無(wú)論被詢問(wèn)的商品是單數(shù)還是復(fù)數(shù),be動(dòng)詞都用is,不能用are；其答語(yǔ)為Its.價(jià)格是Whats the price of the book? Whats the price of these books?Its five yuan . Its ten yuan .】辨析how much和how many表示“多少”,都是對(duì)名詞的數(shù)量進(jìn)行提問(wèn),兩者區(qū)別如下:how much后接不可數(shù)名詞,用于提問(wèn)不可數(shù)名詞的數(shù)量或價(jià)格句式：How much + 不可數(shù)名詞 + 一般疑問(wèn)句？how many后接可數(shù)名詞復(fù)數(shù),用于提問(wèn)可數(shù)名詞的數(shù)量句式：How many + 可數(shù)名詞復(fù)數(shù) + 一般疑問(wèn)句?4、像socks, shoes, trousers, glasses, shorts,等都是成雙成對(duì)的物品,一般以復(fù)數(shù)的形式出現(xiàn)。1） 這類(lèi)名詞作主語(yǔ)時(shí),謂語(yǔ)動(dòng)詞一般用復(fù)數(shù)形式。e.g. How much are these shorts? / How much are these socks? 這雙短襪多少錢(qián)？2) 若表示“一雙,一副,一條”時(shí)則要用a pair of,但謂語(yǔ)動(dòng)詞用單數(shù)形式。e.g. The pair of trousers is 98 yuan. a pair of / two pairs of socks/shorts (也可以用some, many, these, those等詞修飾)5、dollar 可數(shù)名詞,“美元”,其符號(hào)為$,其復(fù)數(shù)形式為dollars。中國(guó)的貨幣單位是元,其符號(hào)為￥,為不可數(shù)名詞。1） 表價(jià)格時(shí),用單詞則放在數(shù)字之后,用符號(hào)則放在數(shù)字之前。e.g. 20 dollars =$20 .(貨幣符號(hào)沒(méi)有復(fù)數(shù)形式)2） 所有的錢(qián)數(shù)同時(shí)間、距離一樣,無(wú)論多少,在句中作主語(yǔ)時(shí),謂語(yǔ)動(dòng)詞都用單數(shù)形式。e.g. 5,000 dollars is quite a lot of money for me.Five weeks is quite a long time.五周是相當(dāng)長(zhǎng)的一段時(shí)間。6、Can I help you? 我能幫您嗎？ =May I help you ? / What can I do for you? / Is there anything I can do for you?Thank you,I want / Yes,please. Id like / No, thanks. Im just looking around. / Just a look.這一句主要是英語(yǔ)國(guó)家里,服務(wù)員招呼客戶的常用語(yǔ),以表示客氣和禮貌,而不說(shuō)“What do you want?”。Can I help you?_.I want to buy some T-shorts for my children.A. Yes, please. B. No, thanks. C. It doesnt matter D. Of course I can 7、need “需要”1） 當(dāng)實(shí)義動(dòng)詞時(shí), need + n. / prep. /to do sth. 】構(gòu)成否定句和疑問(wèn)句時(shí)需借助助動(dòng)詞do/does.e.g. I need a hat./ Does your mother need any help？ 2） 當(dāng)情態(tài)動(dòng)詞時(shí),need + v原。】變否定句時(shí)要在need 后加not,變疑問(wèn)句時(shí),要把need提到主語(yǔ)前。e.g. You neednt do it again. / Need he do his homework first?8、How about this one？one,代詞,此處用于指代上文提到的sweaters中的一件。 e.g. I have some apples. Do you want one？ 】one 和it 均指上文出現(xiàn)過(guò)的名詞,但其用法不同。 one指代“同名異物”,即指代與前面事物同屬一類(lèi)的事物,并不是指同一個(gè)事物。如果指代同類(lèi)事物中的一些,要用onesit指代“同名同物”,即指代上文出現(xiàn)過(guò)的同一事物 e.g. This apple is small. Please give me this one. 這個(gè)蘋(píng)果小,請(qǐng)給我一個(gè)大的。 These books are mine. Those ones are lilys. 這些書(shū)是我的,那些（書(shū)）是莉莉的。 Wheres my pen ? I cant find it.9、look 1)系動(dòng)詞,“看上去,看起來(lái)”,+ adj.e.g. You look very healthy. / The teacher looks very happy.2)作不及物動(dòng)詞,“看”,加賓語(yǔ)時(shí)要與at連用,即 look at.picture, please.10、Ill take it. 我買(mǎi)了。 此句是選好的商品并決定購(gòu)買(mǎi)時(shí)的常用語(yǔ)。如果選定的物品是單數(shù)時(shí),說(shuō)“Ill take it.”；如果選定的物品是復(fù)數(shù)時(shí),應(yīng)說(shuō)“Ill take them.”。1） Ill = I will, will是助動(dòng)詞,表“將要”,用于表示將來(lái)發(fā)生的動(dòng)作。2） Take “買(mǎi)”,相當(dāng)于buy/get/have。在口語(yǔ)中,買(mǎi)東西常用take.e.g. The coat is very cheap. Ill take it.11、Here you are.給你 是把某物遞給對(duì)方時(shí)的常說(shuō)的一句話。當(dāng)你購(gòu)物或借東西時(shí),也常用這句,表示“給你”。 不同情景意義不盡相同。當(dāng)你乘車(chē)到站時(shí),這句話意為“你到站了”。當(dāng)尋物時(shí),若是自己發(fā)現(xiàn)的常說(shuō)“Here it is.”或“Here they are.”,意為“找到了”。 May I use your dictionary? Mine is at home. _.A. Thanks a lot. B. Id love to C. You12、clothes n.“衣服”,統(tǒng)指（身上的）各種服裝,包括上衣,褲子等。1）它不能直接與數(shù)詞連用,但可以用these, those,some等詞來(lái)修飾。2）clothes 本身是復(fù)數(shù)形式,作主語(yǔ)時(shí),謂語(yǔ)動(dòng)詞總用復(fù)數(shù)形式。但如果用量詞suit來(lái)修飾,謂語(yǔ)動(dòng)詞應(yīng)和suit在單復(fù)數(shù)形式上保持一致。e.g. This suit of clothes is Jims. / Those suits of clothes are on sale now.13、store 可數(shù)名詞,“商店”,同義詞為stop,store往往指百貨商店。 還可做動(dòng)詞,“儲(chǔ)存,儲(chǔ)備“,e.g. You need to store food.14、buy 及物動(dòng)詞,“買(mǎi)”,反義詞為sell（賣(mài)）buy sb. sth.=buy sth. for sb.給某人賣(mài)某物e.g. I want to buy my father some presents.=I want to buy some presents for my father.15、sell 及物動(dòng)詞,“出售,銷(xiāo)售”,Sell sb. sth.=sell sth.to sb.賣(mài)某物給某人e.g. They will sell me their books.=They will sell their books to me .他們將要把他們的書(shū)賣(mài)給我。16、sale n.“出售,銷(xiāo)售”,其動(dòng)詞形式sell e.g. The sale of his old house will make him sad.at great sale 在大減價(jià)期間on sale (正在)出售,減價(jià)銷(xiāo)售=at a sale e.g.The books are on sale。for sale 待售, e.g. The house is for sale.on sale for 以.價(jià)格出售 e.g. The hat is on sale for 8 dollars.17、.at very good prices 以很低（合理）的價(jià)格出售。 1）at 以.的價(jià)格 price n. “價(jià)格、價(jià)錢(qián)“與介詞of 常構(gòu)成短語(yǔ)：the price of.“.的價(jià)格” 2）詢問(wèn)價(jià)格且句中有price時(shí),疑問(wèn)句通常用what ,不用how much； 3)表示價(jià)格“高低”時(shí),常用high和low,不用expensive 或 cheap。 e.g. I buy it at a very good price,3 yuan .18、for only +具體價(jià)錢(qián) 表示某物賣(mài)多少錢(qián)e.g. These trousers are for seventy yuan . / for only 28 dallars19、in + 顏色 表“穿顏色的”e.g. The girl in red is my younger sister.那個(gè)穿紅色的女孩是我的妹妹。in + 表衣服的名詞,表示“穿著”e.g. The woman in a yellow coat is Lucys mother./ The woman is in a purple sweater.20、數(shù)詞可用來(lái)表示年齡,數(shù)量,順序,編號(hào),時(shí)間等.】基數(shù)詞的表達(dá)法：1）1-12,無(wú)規(guī)律,one,two,three, four, five, six, seven, eight ,nine, ten, eleven , twelve;2)13-19,表示“十幾”,在個(gè)位數(shù)后加后綴-teen,讀作/ti:n/。其中應(yīng)注意thirteen,fifteen和eighteen的拼寫(xiě)。thirteen,fourteen,fifteen,sixteen,seventeen,eighteen,nineteen,3）20-90的整十?dāng)?shù)詞,都