英语新目标七年级上册Unit 7知识要点汇总.docx

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1、英语新目标七年级上册Unit 7知识要点汇总Unit 7 How much are these socks?话题：学会询问价格，谈论衣物，提供帮助和感谢别人。语法：数词。1 .通过大量的反复的对话练习，掌握如何询问价格，谈论衣服, 表示感谢。How much is the blue T-shirt?It s 10 dollars. OK, T II take it.Thank you. You re welcome.2 .数词:表示数目多少或顺序多少的词叫数词，数词分为基数词和 序数词。表示数目多少的数词叫基数词；表示顺序的数词叫序数词。1)基数词3 .基数词写法和读法：4 .基数词-一般是单

2、数形式，但下列情况，常用复数：a.与of短语连用，表示概数，不能与具体数目连用；如：scores of people 指许多人；b.在一些表示“一排“或“一组的词组里；如:They arrived in twos and threes.他们三三两两的到达了。c.表示“儿十岁”；d.表示“年代”,用in+the+数词复数；e.在乘法运算的一种表示法里；如：3 x 5 = 15 Three fives is (are) fifteen.2）序数词序数词的缩写形式：first-lst, second-2nd , thirty-first-31st3）数词的用法1 .倍数表示法a.主语+谓语+倍数（或

3、分数）+as + adj.+ as：I have three times as many as you.我有你三倍那么多。b.主语+谓语+倍数（分数）+ the size （amount, length-） of-The earth is 49 times the size of the moon.地球是月球的49倍。c.主语+谓语+倍数（分数）+形容词（副词）比较级+ than:The grain output is 8 percent higher this year than that of last year.今年比去年粮食产量增加8%od.还可以用by+倍数，表示增加多少倍：The

4、production of grain has been increased by four times this year.今年粮食产量增加了4倍。2 .分数表示法构成：基数词代表分子，序数词代表分母。分子大于1时，分子 的基数词用单数，代表分母的序数词用复数。如:1/3 one-third ； 3/37 three and thirty-sevenths单词：点击音频获取本单元单词读音Unit 7重要知识点1 .询问价格1） How much is+单数商品？ It s +钱How much are+复数商品？They re+钱2） What s the price of + 商品？ It

5、 s +钱补充:how many/how much询问数量how many+可数名词，how much +不可数名词你有多少苹果？How many apples do you have?你想要多少水？How much water do you want?2.socks袜子，shoes鞋，pants裤子，trousers裤子等都是成双 成对的物品，一般以复数形式出现，作主语时谓语动词用复数形式。The pants are Tom s.这条裤子是汤姆的。但它们和a pair of （一双、一副或一对）连用作主语时，谓语动 词要与pair在数上一致。The pair of pants is Tom

6、s.这条裤子是汤姆的。3 .英美等西方国家的货币单位像dollar（美元）、cent（美分）、 pound（英镑）、penny（便士）、shilling（先令）等有单复数变化。我国的货 币单位元（yuan）、角（jiao）、分（fen）单复数一样。表示货币等度量衡单位的词在句中作主语时.，谓语动词用单数 形式。100 dollars is quite a lot of money for him.100美元对他来说是相当多的钱。4 .Can I help you?我能帮助你吗?此句是主动提供帮助时的服务用语。它的翻译随着场所的不同而 不同。在饭店;你想吃点什么？在商店:你想买点什么？肯定回答:

7、Yes,please.否定回答:No, thanks. (,)与Can I help you?同义的常用表达还有:What can I do for you?5 .want sth:想要某物；want to do sth:想要做某事I want an apple.我想要个苹果。He wants to play basketball.他想打篮球。6 . Look “看起来;看上去，连系动词，后接形容词作表语。It looks nice.它看起来很漂亮。7 .r II take two pairs,我买两双。8 .Here you are.给你。9 .表示感谢的用语:Thank you / Tha

8、nk you very much / Thanks / Thanks a lot / Many thanks.回答感谢的用语:That s all right/That s OK. / Not at all. /You re welcome.10 .Come and buy your clothes at our great sale!我们在大甩卖，快 来买衣服！.come and do sth来做某事Come and see us.来拜访/看看我们吧。Please come and have dinner with us.请来跟我们吃顿饭吧。.on sale出售;廉价出售The sweate

9、rs are on sale.毛衣在出售。.buy sb. sth. = buy sth. for sb.给某人买某物buy my mother a sweater = buy a sweater for my mother. 给我妈 妈买了件毛衣。sth 若是代词,只能用 buy sth. for sb. buy it for him.11 .at very good prices以合理/优惠的价格We sell all our clothes at very good prices.我们卖的所有服装价格都很优惠。12 .for以的价格（表交换、价格）You can buy socks fo

10、r only 5 dollars each.你可以买到每双只卖5美元的袜子。13 .句型总结：Qo you likeneed +衣服（复数）?We have +衣服（复数）+in +颜色 +for +价格Do you like socks? We have socks in red for two dollars.你需要袜子吗?我们有每双两元的红色袜子。.For boysgirlsmenwomen,you can buy + 衣服（复数）+in + 颜色 +for+价格.For girls,you can buy skirts in red for twenty dollars.女孩可以买到二十美元一条的红色裙子。