2024届高三英语一轮复习一词多义+as+解析+课件.pptx

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1、as用法解析用法解析词性词性as作连词 conj.因为；依照；当时；随着；虽然01010203as作介词 prep.当作；以的身份；如同as作副词 adv.同样地；和一样的0203lMy father came home as my mother was cooking dinner.当我妈正在做晚餐的时候，我爸到家了。当我妈正在做晚餐的时候，我爸到家了。lAs a little girl I began to learn dancing.注意：该句注意：该句as后省略了后省略了I was,因为主从因为主从句主语人称一致，理解为：句主语人称一致，理解为：“当我还是个当我还是个小女孩的时候小女孩

2、的时候”，而不是，而不是“作为一个小女作为一个小女孩孩”。单个单个as作连词，作连词，时间状语从句时间状语从句,as:当当.时时原因状语原因状语从句，从句，as:因为因为lAs this historical site is of great importance,we will excavate it carefully.因为这个历史遗迹意义重大，我们将会非常小心地挖掘它。因为这个历史遗迹意义重大，我们将会非常小心地挖掘它。让步状语从句，让步状语从句，as:尽管尽管/虽然虽然lChild as she is,she knows something of computer programmin

3、g.尽管她还是个小孩子，但她却了解一些电脑编程的东西。尽管她还是个小孩子，但她却了解一些电脑编程的东西。比较状语比较状语从句，从句，as(副词副词).as(连词连词):正如正如.一样一样l【此用法中，从句常省略与【此用法中，从句常省略与主句相同的成分】主句相同的成分】His car is as fast as my car(is).l他的车跟我的车一样快。他的车跟我的车一样快。The old town still looks as it did during the Qing Dynasty.（四省语（四省语法填空）法填空）这个老城镇看起来和清代这个老城镇看起来和清代时一样。时一样。方式状语从

4、方式状语从句，句，as:按按照，根据；照，根据；如同，像如同，像lWe must operate as the instruction tells us.l我们必须按照说明书告诉我们的那样去操作。我们必须按照说明书告诉我们的那样去操作。lThe letter reads as(what)follows.l【此处【此处what一般情况下都会省略。】这封信一般情况下都会省略。】这封信的恶原文如下。的恶原文如下。lAir is to man as water is to fish.l空气于人，如同水之于鱼。空气于人，如同水之于鱼。（6）表语）表语从句，从句，as:像像.那样那样lThings are

5、 not always as they seem to be.l事情并不总像表面看起来那样。事情并不总像表面看起来那样。7.插入句，插入句，as:正如正如.那样那样lThe experience,as I see it,is the most valuable thing in your life.l照我看来，这段经历是你人生中最宝贵的照我看来，这段经历是你人生中最宝贵的东西。东西。9）“as作副词+介词短语”这种结构前后多半有逗号，可译为“如.;像.”:I heard the whir,as from a car.我听到了好像汽车的呼呼声我听到了好像汽车的呼呼声 8）“as作介词作介词+过去

6、分词短语过去分词短语”，一般构成定语、状语、宾语，一般构成定语、状语、宾语补语、主语补语、或有省略成分的从句补语、主语补语、或有省略成分的从句He hopes we will be able to carry out everything as planned.他希望我们能按计划行事。（状语）他希望我们能按计划行事。（状语）判断as的含义(选必B3 U4课本原文)how could I become as selfish and bad-tempered as Thomas.We watched as Shackleton and the boat sailed away from Elenp

7、hant Island.Food was also a problem,as we did not find any vegetables or fruit on the island.We had to be careful not to go outside too often,as the changing temperatures could make us ill.It was almost as dangerous to become too hot from wearing too many clothes as to become too cold from wearing t

8、oo few.as 的短语的短语 1as a matter of fact 事实上，其实2As a matter of fact,mathematics finds its application in every science.3事实上，数学在各门科学中都有它的用处。2.as a result 结果，终于，因此4She studied hard.As a result,she made fast progress in the studies.5她学习用功，因此她在学习方面进步很快。3.as a result（或 consequence）of.6作为结果，由于 7As a result o

9、f(或As a consequence of,/In consequence of,/Consequent upon)its rise in temperature,the gas expands.8由于温度上升，气体就膨胀。4as a rule 1.作为一个常规，通常，习以为常作为一个常规，通常，习以为常2.As a rule,we keep records on all the experiments so that we may have enough data.3.我们通常总是对所有的实验都作记录，以便得到足够的资料。我们通常总是对所有的实验都作记录，以便得到足够的资料。5as a w

10、hole 作为一个整体（来看）作为一个整体（来看）1.We should analyse the problem as a whole.2.我们应把这个问题作为一个整体来分析。我们应把这个问题作为一个整体来分析。(状语状语)3.He is to be responsible for the work as a whole.4.他将要负责整个工作。他将要负责整个工作。(定语定语)6as above如上It has been explained as above.这件事已在上面解释过了。7as against 与.对照，与.对比There are more than three hundred s

11、tudents in her class this year,as against only 80 last year.今年她的班里有三百多名学生，而去年只有八十名。8“as+形容词（或副词）+as+形容词（或副词）”又.又.This method is as simple as practical.这种方法又实用又简单。9as.as any（或anybody）不弱于任何的.，史无前例的.He is as great a scientist as any.他是一位少有的大科学家。10as.as anything 非常地无可比拟地.The work is as easy as anything.

12、这项工作特别容易.11as.as possible 尽可能地We should study as hard as possible.我们应当尽可能地努力学习。nas before 依旧He gave the same answer as before（或as ever）.他依旧作了相同的答复.（原义：他给了与以前相同的答复.）nas compared with 和.相比Our price is attractive as compared with that in the international market.与国际市场相比，我们的价格是有吸引力的。nas early as.早在.As early as 1986，he suggested that plan.早在 1986 年他就提出了那个计划。（1986前不能用in。）