Unit7基础词法用法语法知识点汇总 语法练习人教版英语七年级上册

1、人教版七年级上册unit7基础词法用法语法知识点素材短语：_l. how much 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shirts in red 红色的裙子 8. twenty-eight dollars 28 美元 9. on sale !（正在）出售 10. twenty yuan 20 元 11. a pair of black shoes 一双黑色的鞋子 12. for sale 待售语法：how much通

2、常用来对价格进行提问，意为“多少钱。常构成句式"how much is/are+物品?,回答用"s /the/re+价格。/直接用价格来回 答。how much is your sweater?how much are these trousers?it's 123 dollars./123 dollars. /they're 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it怎.价格是what's the price o

3、f the book?what's the price of these books?it's five yuan .it,s ten yuan .need用法1）当实义动词时，need + n. / prep, /to do sth.构成否定句和疑问句时需借助助动词do/does.i need a hat.does your mother need any help?2）当情态动词时，need + v.原形。变否定句时要在need后加not,变疑问句时，要把need提到主语 前。you needn't do it again.need he do his homewo

4、rk first?buy用法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i want to buy my father some presents.i want to buy some presents for my father.sale n/z出售，销售”，其动词形式sellthe sale of his old house will make him sad.at great sale在大减价期间come and buy your clothes at our great sale.on sale （ie

5、在）出售,减价销售=at a salethe books are on sale。for sale 待售，the house is for sale.on sale for以.价格出售the hat is on sale for 8 dollars.price的介词搭配at a good price./at good prices.以优惠的价格。at a high price.at a low price.1）at .price以的价格price n.“价格、价钱”与介词of常构成短语:the price of.z/. 的价格2）询问价格且句中有price时，疑问句通常用what ,不用how

6、 much3）表示价格“高低时，常用high和low,不用expensive或cheap。i buy it at a very good price,3 yuan.基数词的表达法1）1-12,无规律，one, two, three, four, five, six, seven, eight ,nine, ten, eleven , twelve;2）1319,表示"十几，在个位数后加后缀-teen,读/ti:n/o其中应注意thirteen, fifteen和eighteen的拼写。thirteen, fourteen, fifteen, sixteen, seventeen, e

7、ighteen, nineteen3）2090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 hundred/ a hundred 表示,要表示 200900, 用“具体数字 + hundred”。200 two hundred 900 nine hundred练习：用适当的介词填空1. they h

8、ave lots of ballsvery good prices in the ir store.2. the shorts are only y5two pairs.3. boys and girls,we have lots of hamburgers and ice-cream.4. he wants two pairssocks.5. the computers and tv aresale.根据句意及汉语提示完成单词1.1 like these（裤子）.they look nice.2.111（买下）this t-shirt.3. mary's（裙子）looks very

9、nice.4. do you like these blue（短裤）？5. how much are these black(包)？用方框中适当的单词或短语填空t-shirt,small,shorts,how much,need1. do youbags for school?2. what are these?they are blue.3. is this your, jane?yes,it is.4. is the big red hat?15 dollars.5. this jacket is too big for my daughter.do you have any ones?用括号中所给单词的适当形式填空l.this green sweater(look) nice on you.2.1 need(buy)a new t-shirt