Unit 3 The world meets China 状语从句 状语从句一般分为九种，它们是：时间状语从句；
地点状语从句；
原因状语从句；
条件状语从句；
目的状语从句；
结果状语从句；
方式状语从句；
让步状语从句；
比较状语从句。
一、时间状语从句；
地点状语从句；
原因状语从句；
条件状语从句 [观察例句] 1．We should go where the Party needs us most. 2．The last time she saw James，he was lying in bed. 3．If you see him，give him this note. 4．It will not be long before we meet again. 5．I have written home four times since I came here. 6．Now that everybody is here，let＇s begin our meeting. [归纳用法] 1．引导时间状语从句的有：(1)as ，after，before，directly，immediately，once，since，till，until，when，while，whenever 等连词。(2)as soon as，the moment/minute，every time，each time，next time，the first/last time，any time，by the time，the day/year等短语。
2．引导地点状语从句的有：where，wherever，everywhere，anywhere等连词。
3．引导原因状语从句的有：because，as，since，now that等连词。
4．引导条件状语从句的有：if，unless，as/so long as，in case，on condition that，provided/providing(that)，supposing/suppose(that)等连词。
[名师点津] 1．when，while与as引导的时间状语从句的区别 连词 从句谓语动词 用法 when 延续性动词、非延续性动词 从句的动作和主句的动作可以同时发生，也可以先后发生 while 延续性动词 从句的动作与主句的动作同时发生 as 延续性动词 强调主从句动作相伴发生，可译为“一边……一边……；
随着” 2.before与since的常用句式 连词 词义 常用句式 before 在……之前，还未……就……；
……才……；
趁……，还没来得及…… (1)It will(not)be＋一段时间＋before...“(没有)过……(时间)才(就)……” (2)It was not long before...“不久……就……” (3)It was＋时间段＋before...“过了……(时间)才……” since 自从……以来 It is/has been＋一段时间＋since...(从句用一般过去时) 3.until与till引导时间状语从句的区别 连词 位置 用法 until 可以放在句首 not...until可用于强调句型 till 不可放在句首 一般不用于强调句型 4.because，as，since，now that引导原因状语从句的区别 连词 位置 内涵 语气 能否回答 why 能否 被强调 because 一般放在主句之后 直接因果关系 强 能 能 as 主句前或后 双方都知道的原因 弱 不能 不能 since/now that 通常位于主句前 [即学即练1] 单句语法填空 ①While/When I was reading，he came in. ②You＇ll be late unless you get up earlier. ③The old man asked Lucy to move to another chair because he wanted to sit next to his wife. ④We must camp where we can get water. 二、目的状语从句；
结果状语从句；
方式状语从句；
让步状语从句；
比较状语从句 [观察例句] 1．Although he may be troubled，he always presents a calm smiling face. 2．Mike is such an honest man that we all believe in him. 3．I have changed it as you suggested. 4．I＇ll speak slowly so that you can make sense of what I will say. 5．He runs faster than I(do)． [归纳用法] 1．引导目的状语从句的有：so that，in order that，in case，for fear that等。
2．引导结果状语从句的有：so that，so...that...，such...that...。在非正式语体中，由so...that...，such...that...引导的句子中的that可以省略。
3．引导方式状语从句的有：as，as if/though。
4．引导让步状语从句的有：although，though，as，while，even if/though，whether...or(not)，“no matter＋疑问词”与“疑问词＋ever”。
5．引导比较状语从句的有：as...as，not as/so...as，the same...as，比较级＋than。
[名师点津] 1．although引导让步状语从句时，只能用正常语序；
though引导让步状语从句时，可用正常语序，也可用倒装语序；
as引导让步状语从句时只能用倒装语序，即从句中的表语、状语或动词原形置于句首，若表语是单数名词，前置时要省略冠词。
2．although与though都可以与yet，still，nevertheless连用，但不能和but连用。
3．while引导让步状语从句时，一般置于句首。
4．“疑问词＋ever”还可以引导名词性从句；
“no matter＋疑问词”只能引导让步状语从句。
5．so that与in order that引导目的状语从句时，常与can，could，may，might连用；
in order that 引导的目的状语从句可以置于主句前或后，但so that引导的从句只能置于主句后。
[即学即练2] 单句语法填空 ①While all of them are strong candidates，only one will be chosen for the post. ②And he speaks so slowly and strangely that it takes patience to understand what he is saying. ③They are working on it day and night so that they can finish it ahead of time. ④She is two years older than I. ⑤He behaved as if nothing had happened. Ⅰ.单句语法填空 1．You may use the room as/so long as you clean it up afterwards. 2．He is so smart a boy that I like him very much. 3．After the war，a new school building was put up where there had once been a theatre. 4．Tom is so independent that he never asks his parents＇ opinions unless he wants their support. 5．If we don＇t stop global warming，many animals and plants in the world will be gone. 6．Let＇s not pick these peaches until this weekend so that they get sweet enough to be eaten. 7．Although/Though/While birds use their feathers for flight，some of their feathers are for other purposes. 8.If you don＇t understand something，you may research，study，and talk to other people until you figure it out. 9.Located where the Belt meets the Road，Jiangsu will contribute more to the Belt and Road construction. 10.Over time，when/as the population grew，people began cutting food into small pieces so it would cook more quickly. Ⅱ.短文语法填空 Parents and grandparents are understandably proud of the quick minds and 1.impressive (impress)talents of their little ones.But let me tell you about another quality，perhaps even more important，2.found (find)in a little girl named Skylar. Ever 3.since Skylar learned of Disneyland from TV，she saved her nickels and dimes in a piggy bank in the hope of visiting there someday. 4．When Skylar returned it was Christmas time.She decided to buy presents with her savings，but she also learned from 5.announcements(announcement) on TV about a local homeless shelter called “The Road House”． 6．On Christmas Eve，she and her family drove to the shelter 7.where Skylar presented her Christmas box to a grateful little girl.She was 8. so filled with joy at truly helping someone else that her family decided 9.to make(make)the journey to the homeless shelter an annual tradition. It is that quality，above all these，10.that makes beautiful people.
推荐访问: