Unit7知识点梳理 人教版英语八年级上册.doc

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1、七年级上册U7知识点梳理1、短语归纳：how much多少钱 seven dollars七美元white bag白色的包 clothes store服装店 at very good prices以很低的价格 for boys对于男孩子skirts in red红色的裙子 twenty-eight dollars 28美元Big Sale!大降价！ twenty yuan二十元2.重点句型：how much is/are?多少钱？Its /Theyre它/它们Ill take it.我买了。in颜色 某种颜色的衣服。What color do you want?你想要什么颜色的？buy sth

2、from sb.从某人那买某物。sell sth to sb.把某物卖给某人。Here you are.给你。3.典句必背：How much is the hat?这顶帽子多少钱？Its five dollars. 5美元。How much are these socks?这双短袜多少钱？Theyre two dollars.两美元。CanIhelp you?我能帮您吗？Yes, please.好的。Here you are.给你。Ill take it.我买了。Thank you.谢谢。 Youre welcome.不用谢。3.重点语法：1.基数词，表示数目或者数量的多少。基数词的表达法：o

3、ne到twelve，拼写和读音没有什么相似之处，无规律可言，应逐一进行记忆。thirteen到nineteen,表示“十几”，在个位数后加后缀-teen，读作/ti:n/。其中要注意thirteen, fifteen和eighteen的拼写。twenty到ninety，表示“几十”，以-ty结尾，但需注意下面几个词的拼写：twenty, thirty, forty, fifty, eighty。2129直到9199,表示“几十几”，用整十位加个位数表示，中间用连字符“-”把十位数与个位数连接起来。21 twenty-one 35 thirty-fiveone hundred意为“一百”，表示一

4、百还可以用a hundred .要表示200900,用“具体数字hundred”。 200 two hundred 900 nine hundred基数词的用法：表示年龄，基数词放在years old之前。He is twenty years old.用来表示人或物的数量，放在名词前。I have three balls.表示顺序、编号等，放在名词之前。Im in Class three.用来计算。 Two and six is eight.2.how much的用法：意为“多少钱”，用以询问物品的价格，后接be动词，其形式要与后面的主语保持一致，即主语是可数名词单数或不可数名词时，用is；若

5、主语是可数名词复数时，则用are.What is the price of主语 ，也是询问物品的价格，常在同义句转化中与how much句型互换，但是要注意，此句型中，无论主语是可数名词单复数还是不可数名词，其be动词都是is。另外，how much与how many的区别：how much与how many都可以用来询问物体的数量，区别在于how much后接不可数名词，而how many后接可数名词复数形式。3.help的用法：help做动词，意为“帮忙，帮助”，常用结构为help sb to do sth帮助某人做某事。help sb with sth.帮助某人做某事。My teache

6、r helps me with my homework我的老师帮我辅导家庭作业。Tom often _ his father (to) clean the garden.汤姆经常帮他爸爸打扫花园。其他用法：help!“救命”help sb with sth帮助某人做某事。练习：Lisa often _ me with my English.丽萨经常帮我学习英语。help oneself (to)“自便，随便（吃/喝）Come on, boys. Help yourselves to some juice.来，孩子们，随便喝些果汁cant help doing sth.“忍不住做”练习：Kate

7、 couldnt help _(cry)when she won the match.凯特赢得了比赛后，忍不住哭了。作名词，意为“帮助”是不可数名词。Tony needs some help.托尼需要一些帮助。4.need的用法：need做实义动词，有人称和数的变化，意为“需要”，后接名词、代词或动词不定式做宾语，注意need doing sth意为“需要被做”是主动形式表示被动的含义。They dont need our help.他们不需要我们帮助。练习：Jims bike is broken.He needs_ _ a new one.吉姆的自行车坏了，他需要买辆新的。need做情态动词

8、时长用于否定句和疑问句中，意为“需要，必要”，后接动词原形，此时need无人称和数的变化，可以直接加not构成否定句，也可直接提到句首变为一般疑问句。You neednt worry about that.你不必为此担心。 Need we finish the work before Saturday?我们有必要周六前完成工作吗？e的用法：做不及物动词时，意为“来，来到”，后接动词不定式做状语，即come to do sth来做某事。come的反义词是go，后接地点名词时，需加介词to；后接地点副词时，则要省略介词to。例：He comes to school early every day.

9、他每天很早来上学。（school是地点名词）练习：Please_here before 10:00.请10点前来这儿。(here是地点副词)6.buy的用法：做及物动词，意为“买，购买”，后接名词或代词做宾语。I want to buy some apples.我想买点苹果。buy后接双宾语，即用于buy sb sth或buy sth for sb结构，意为“给某人买某物”My mother buys me new clothes every year.My mother buys new clothes for me every year. 我妈妈每年给我买新衣服。7.sell的用法：sel

10、l及物动词，意为“出售；销售；卖”固定搭配：sellsb sthsell sth to sb意为“卖某物给某人”They are going to sell me their books.They are going to sell their books to me.他们打算把他们的书卖给我。课堂练习1.-_ are these bananas?-$ 3.99.A、How muchB、How longC、How heavyD、How big2.-_ is the dictionary?-Its $ 22.95.A、How oldB、How longC、How thick D、How much

11、3.- _?-Im looking for a pair of google glasses for my grandson.A、How is it going B、Whos that speakingC、What can I do for you D、What should I do4.-May I use your dictionary? Mine is at home.-_.A、Thanks a lot B、Id love toC、Youre welcomeD、Sure, Here you are5.We have pants _ green and yellow _ $ 30.A、in

12、; forB、in; withC、in; onD、on; for6.选词填空。 Sally wants to go shopping (去购物). She needs a sweater and two _of socks. She asks her good friend Helen to go with her, because she _ some advice (建议). They go to the clothes _ . Sally likes the yellow sweater, but it doesnt _nice on her. The blue one is bette

13、r, so she wants to _it. Dont forget the socks, Helen says. Then she helps Sally select (挑选) some socks. At last, Sally takes the sweater and some socks. She takes a _for Helen, too. Helen is so happy.7.根据汉语提示完成句子1.你要买点什么吗？是的。我想要一件毛衣。-_ _ _ _?-Yes, I want a sweater.2.我们有仅售是美元的书包。We _ red schoolbags _

14、 only￥10.3.对于男孩子来说，你们可以只用三美元就能买到四双袜子。_ boys, you can buy _ _ _ socks for only ￥3.4.这双鞋子很便宜，我买了。The _ _ very cheap. Ill _ them.5.快来买衣服，华星服装店大减价啦！_ and buy your _ at Huaxings great _!6.绿色短裤减价为15元。The green shorts are _ _ _￥15.8.根据对话内容，在空白处填入恰当的句子，使对话完整、通顺。A: I like that shirt.B: The black one? I dont

15、like itA: (1)_?B: Its very nice and the color suits (适合) you.A: (2)_?B: I dont know. I cant find the price tag (价签).A: (3)_?B: OK, but where is the shop assistant (店员)?A: Oh, look That shirt is like (像) the blue one.B: (4)_?A: Yes, it does. Its only $20.B: (5)_A: Yes, Ill buy it.9.翻译(1) _ do you _？I need _ _ _ black shoes for school.“你需要什么？”“我需要为上学买一双黑色的鞋子。”(2)_ girls, we have skirts _ purple _ only $20.对于女生，我们有紫色的短裙，仅卖20美元。