《高考英语备考之状语从句找准突破口专啃硬骨头.docx》由会员分享,可在线阅读,更多相关《高考英语备考之状语从句找准突破口专啃硬骨头.docx(4页珍藏版)》请在taowenge.com淘文阁网|工程机械CAD图纸|机械工程制图|CAD装配图下载|SolidWorks_CaTia_CAD_UG_PROE_设计图分享下载上搜索。
1、高考英语备考:找准突破口,专啃硬骨头高考对状语从句的考查逐步由单选题过渡到语法填空题、短文改错题及书面表达题。考生掌握状语从句的用法,不仅有助于理解句子、篇章,在书面表达中更高级地表达语义,而且对于高阶英语学习有重要的意义。一、时间状语从句1.when,while,as的用法(1)when从句的谓语动词可以是持续性动作,也可以是短暂性动作。When the craftsman came into the classroom, we gave him a warm welcome. 当名匠走进教室时,我们报以热烈的掌声。(2)while从句的动作必须是延续性的,它用作并列连词时,意为“然而,却”
2、,表示转折、对比关系。I sat beside a table, explaining every step of the process while making tea. 我坐在桌旁,一边沏茶,一边解释沏茶的每一步骤。(3)as从句的动作是延续性动作,强调主句、从句的动作同时进行,有“渐进变化”之意,意为“随着;一边一边”。_the average age of the population increases, there are more and more old people to care for.A. Unless B. Until C. As D. While【答案】C【解析】
3、 本题考查as引导的时间状语从句。句意:随着人口平均年龄的增加,越来越多的老人需要照顾。unless除非;until直到;as因为,正如,随着;while虽然,然而,当时。根据语境,选C项。2.until的用法(1)用于肯定句,表示主句的动作持续到从句的动作开始为止。If you dont understand something, you may research, study, and talk to other people you figure it out.A. because B. though C. until D. since【答案】C【解析】本题考查until引导的时间状语从
4、句。句意:如果你无法理解某个东西,你可以研究、学习并和他人探讨,直到你搞清为止。根据句意“直到你搞清为止”可知用until。(2)用于否定句,表示主句的动作在从句的动作发生后才开始。We were told that we should follow the main road until we reached the central railway station. 直到我们到达中心火车站,才有人告诉我们应该沿着主路向前走。3.before的用法before意为“在之前;没来得及就;不到就”,多用于完成时。A dozen ideas were considered the chief arc
5、hitect decided on the design of the building.A. because B. before C. whether D. unless【答案】B【解析】本题考查before引导的时间状语从句。句意:首席建筑师在决定该建筑的设计之前,考虑了十二个点子。before在此意为“在之前”,符合語境和题意。4.since的用法since意为“自以来”,从句用一般过去时,主句用现在完成时。Two weeks have passed since you came to our school for the exchange program, which we all h
6、ave benefited from. 自从你来到我们学校参加交换生计划以来,两周已经过去了,我们也由此受益匪浅。5.重要句型(1)It is/has been+时间段+since-clause。若since从句的谓语动词是非延续性动词,则表示从句中的动作延续了××时间;若since从句的谓语动词是延续性动词,则表示从句中的动作已结束××时间了。It is five years since I smoked. 我戒烟已有五年的时间了。It has been just a week since we arrived in Beijing. 我们到达北京刚好
7、一周。(2)It +be/will be +一段时间+before -clause。若主句的be用了was 或 wasnt, 意为“过/没过多久某人干了某事”;若主句中的be 用了will/wont be ,则意为“过/没过多久就会发生某事”,从句用一般现在时表示将来。It was three years before he designed the supermarket.在他设计出超市的图纸前已经过去三年。It will be ten years before they complete the great railway.他们将用十年的时间把这条大铁路建成。(3)It is/was +具体时间+ when-clause. 该句型意为“当某事发生时,时间是在”。