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1、如有侵权,请联系网站删除,仅供学习与交流人教版 七年级上册 英语知识点 全 第七单元 unit 7 知识点【精品文档】第 5 页Unit 7谈论物品的价格教学重、难点1、会用英语谈论物品颜色、价格及对服装的好恶。 2、掌握购物时的礼貌用语。1、 重点词汇: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、 短语归纳:1. how much
2、多少钱 2. seven dollars 7美元 3. white bag 白色的包4. clothes store 服装店 5. at very good price 以很低的价格 6. for boys 对于男孩子7. shirts in red 红色的裙子 8. twenty-eight dollars 28美元 9. Big Sale!大降价10. twenty yuan 20元 11. a pair of black shoes 一双黑色的鞋子 3、How much is this T-shirt? how much 通常用来对价格进行提问,意为“多少钱”。常构成句式“How muc
3、h is/are+物品?”,回答用“Its /Theyre+价格”。/ 直接用价格来回答。How much is your sweater? / How much are these trousers?Its 123 dollars./123 dollars. / Theyre 130 yuan.】对价格进行询问时,还可用:Whats the price of ?使用这一句型时,无论被询问的商品是单数还是复数,be动词都用is,不能用are;其答语为Its.价格是Whats the price of the book? Whats the price of these books?Its fi
4、ve yuan . Its ten yuan .】辨析how much和how many表示“多少”,都是对名词的数量进行提问,两者区别如下:how much后接不可数名词,用于提问不可数名词的数量或价格句式:How much + 不可数名词 + 一般疑问句?how many后接可数名词复数,用于提问可数名词的数量句式:How many + 可数名词复数 + 一般疑问句?4、像socks, shoes, trousers, glasses, shorts,等都是成双成对的物品,一般以复数的形式出现。1) 这类名词作主语时,谓语动词一般用复数形式。e.g. How much are these
5、shorts? / How much are these socks? 这双短袜多少钱?2) 若表示“一双,一副,一条”时则要用a pair of,但谓语动词用单数形式。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等词修饰)5、dollar 可数名词,“美元”,其符号为$,其复数形式为dollars。中国的货币单位是元,其符号为¥,为不可数名词。1) 表价格时,用单词则放在数字之后,用符号则放在数字之前。e.g. 20 dolla
6、rs =$20 .(货币符号没有复数形式)2) 所有的钱数同时间、距离一样,无论多少,在句中作主语时,谓语动词都用单数形式。e.g. 5,000 dollars is quite a lot of money for me.Five weeks is quite a long time.五周是相当长的一段时间。6、Can I help you? 我能帮您吗? =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
7、/ No, thanks. Im just looking around. / Just a look.这一句主要是英语国家里,服务员招呼客户的常用语,以表示客气和礼貌,而不说“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) 当实义动词时, need + n. / prep. /to do sth. 】构成否定句和疑问
8、句时需借助助动词do/does.e.g. I need a hat./ Does your mother need any help? 2) 当情态动词时,need + v原。】变否定句时要在need 后加not,变疑问句时,要把need提到主语前。e.g. You neednt do it again. / Need he do his homework first?8、How about this one?one,代词,此处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 均指上文出现过的名词
9、,但其用法不同。one指代“同名异物”,即指代与前面事物同属一类的事物,并不是指同一个事物。如果指代同类事物中的一些,要用onesit指代“同名同物”,即指代上文出现过的同一事物 e.g. This apple is small. Please give me this one. 这个苹果小,请给我一个大的。 These books are mine. Those ones are lilys. 这些书是我的,那些(书)是莉莉的。 Wheres my pen ? I cant find it.9、look 1)系动词,“看上去,看起来”,+ adj.e.g. You look very hea
10、lthy. / The teacher looks very happy.2)作不及物动词,“看”,加宾语时要与at连用,即 look at.e.g. Look! Here comes the bus. / Look at the picture, please.10、Ill take it. 我买了。 此句是选好的商品并决定购买时的常用语。如果选定的物品是单数时,说“Ill take it.”;如果选定的物品是复数时,应说“Ill take them.”。1) Ill = I will, will是助动词,表“将要”,用于表示将来发生的动作。2) Take “买”,相当于buy/get/ha
11、ve。在口语中,买东西常用take.e.g. The coat is very cheap. Ill take it.11、Here you are.给你 是把某物递给对方时的常说的一句话。当你购物或借东西时,也常用这句,表示“给你”。 不同情景意义不尽相同。当你乘车到站时,这句话意为“你到站了”。当寻物时,若是自己发现的常说“Here it is.”或“Here they are.”,意为“找到了”。 May I use your dictionary? Mine is at home. _.A. Thanks a lot. B. Id love to C. Youre welcome D.
12、 Sure. Here you are.12、clothes n.“衣服”,统指(身上的)各种服装,包括上衣,裤子等。1)它不能直接与数词连用,但可以用these, those,some等词来修饰。2)clothes 本身是复数形式,作主语时,谓语动词总用复数形式。但如果用量词suit来修饰,谓语动词应和suit在单复数形式上保持一致。e.g. This suit of clothes is Jims. / Those suits of clothes are on sale now.13、store 可数名词,“商店”,同义词为stop,store往往指百货商店。 还可做动词,“储存,储备“
13、,e.g. You need to store food.14、buy 及物动词,“买”,反义词为sell(卖)buy sb. sth.=buy sth. for sb.给某人卖某物e.g. I want to buy my father some presents.=I want to buy some presents for my father.15、sell 及物动词,“出售,销售”,Sell sb. sth.=sell sth.to sb.卖某物给某人e.g. They will sell me their books.=They will sell their books to m
14、e .他们将要把他们的书卖给我。16、sale n.“出售,销售”,其动词形式sell e.g. The sale of his old house will make him sad.at great sale 在大减价期间 e.g. Come and buy your clothes at our great sale.on sale (正在)出售,减价销售=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.价格出售 e.g. The hat is on sal
15、e for 8 dollars.17、.at very good prices 以很低(合理)的价格出售。 1)at 以.的价格 price n. “价格、价钱“与介词of 常构成短语:the price of.“.的价格” 2)询问价格且句中有price时,疑问句通常用what ,不用how much; 3)表示价格“高低”时,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 +具体价钱 表示某物卖多少钱e.g. These trousers are for seven
16、ty yuan . / for only 28 dallars19、in + 颜色 表“穿颜色的”e.g. The girl in red is my younger sister.那个穿红色的女孩是我的妹妹。in + 表衣服的名词,表示“穿着”e.g. The woman in a yellow coat is Lucys mother./ The woman is in a purple sweater.20、数词可用来表示年龄,数量,顺序,编号,时间等.】基数词的表达法:1)1-12,无规律,one,two,three, four, five, six, seven, eight ,ni
17、ne, ten, eleven , twelve;2)13-19,表示“十几”,在个位数后加后缀-teen,读作/ti:n/。其中应注意thirteen,fifteen和eighteen的拼写。thirteen,fourteen,fifteen,sixteen,seventeen,eighteen,nineteen,3)20-90的整十数词,都以-ty结尾; twenty,thirty,forty,fifty,sixty,seventy,eighty,ninety;4)21-99的非整十数词表达为:整十数词 + 连字符 + 个位数词 21 twenty-one 23 twenty-three 35 thirty-five 56 fifty-six5)100用one hungred/ a hundred 表示,要表示200-900,用“具体数字 + hundred”。200 two hundred 900 nine hundred