人教版七年级英语上册 Unit 7 How much are these socks 知识点

Unit7Howmucharethesesocks？一.含有实义动词用法的做题规律1.I→am→amnot→V原→do→don't2.He/she/it/this/that/人名/名单/形物代+名单→is→isnot→V单→does→doesn't3.We/you/they/these/those/名复/形物代+名复→are→arenot→V原→do→don'tdo/don't/does/doesn't引导句子后都用V原形；二.英语中常见询问物品价格用语:1.Howmuchis+the/this/that+单数名词物品/it?...多少钱？It's+基数词+货币单位.2.Howmuchare+the/these/those+复数名词物品/they?…多少钱？They're+基数词+货币单位.3.What'sthepriceof...?=Howmuchis/are....?/What'sthepriceof...?It's+基数词+货币单位.三.用法1.CanIhelpyou？/WhatcanIdoforyou？/MayIhelpyou？Yes,please./No,thanks.2.I'lltakeit./I'lltakethem.3.Hereyouare.4.buysb.sth.=buysth.forsb.给某人买某物buysth.from...从...购买某物5.sellsb.sth.=sellsth.tosb.把某物卖给某人6.atagreatsale相当于onsale，意为“减价出售”。7.辨析forsale与onsaleforsale表示“待售；供出售”onsale表示“出售、减价出售”8.介词for用来表示物品的价格：价格+for+具体物品;Eg：30dollarsforshirt.9.atverygoodprices以很优惠的价格atalow/highprice以低价/高价10.thepriceof...的价格；thepriceof+其它；作主语时,谓语动词用单数；Eg：Thepriceofthiscarisveryhigh.11.expensive/cheap/high/low的区别1)expensive描述物品贵；2)cheap描述物品便宜；3)high表示价格高；4)low表示价格低；12.hundred,thousand,million(百万),billion(亿)等词，与具体数字连用时，用单数形式，其后不加s和of；当前面没有具体数字时,s和of都加上；Eg:threehundredmenteachersEg:hundredsofwomenteachers13.辨析：clothes与clothingclothes指衣服、服装，作主语时，谓语动词用复数；clothing指衣服，尤其是某种类型的服装，不可数，作主语时，谓语动词用单数；clothes指衣服、服装，作主语时，谓语动词用复数；不能直接与数词连；但可以用these/those/some等词语修饰，表示一套衣服用“asuitofclothes”，谓语动词的单复数由suit的单复数决定；拓展：和asuitof用法相同的还有：asetof；apairof；14.表示货币等度量单位作主语时，谓语动词用单数；Eg:100dollarsisquitealotofforhim.15.trousers,socks,shorts,shoes等物品常常成双成对出现，它们作主语时，谓语动词常用复数形式。16.needtodosth.主语多为人；needdoingsth.主语多为物；17.look用做系动词，意为“看上去”，