专题1.3 Travel journal【学以致用】三、重点句型剖析1. It was my sister who first had the idea to cycle along the entire Mekong River from where it begins to where it ends.首先想到要沿整个湄公河从源头到终点骑车旅行的人是我的姐姐。
【句式分析】强调句型的基本结构：It is/was＋被强调的部分＋that/who＋其他部分。
(1)该句型中被强调部分通常是句子的主语、宾语、状语等，一般不强调谓语动词。
(2)如果被强调部分是表示人的词，用who或whom，也可以用that。
强调其他成分都用that。
①It was Mary who/that I met in the street yesterday.(强调宾语)昨天我在街上遇见的是玛丽。
②It was I that/who met Mary in the street yesterday.(强调主语)昨天是我在街上遇见玛丽的。
③It was in the street that I met Mary yesterday.(强调地点状语)昨天我是在街上遇见的玛丽。
④It was yesterday that I met Mary in the street.(强调时间状语)是昨天我在街上遇见玛丽的。
【归纳拓展】(1)not...until...所在句子的强调结构为：It is/was＋not until...＋that＋句子的其他部分。
例如：It was not until the window was shut that I went downstairs.直到窗户关上我才下楼。
(2)强调时间和地点不能用when或where，只能用that。
语法填空（1）(2015·湖南高考改编)It was when we were returning home________ I realized what a good feeling it was to have helped someone in trouble.【答案】that【解析】考查强调句型。
句意：是在我们要回家的时候我意识到帮助那些需要帮助的人是一种多么美好的感觉。
此处强调时间状语从句when we were returning home。
（2）(2016·天津卷，13改编)You are waiting at a wrong place. It is at the hotel________ the coach picks up tourists.【答案】that2. Although she didn't know the best way of getting to places, she insisted that she organize the trip properly.虽然她对去某些地方的最佳路线并不清楚，她却坚持要自己把这次旅游安排得尽善尽美。
【句式分析】这是一个主从复合句，although引导让步状语从句，that引导宾语从句。
although conj.虽然，尽管（=though）在语义上相当于in spite of the fact that...Although she didn't know the best way of getting to places, she insisted that she organize the trip properly.【归纳拓展】引导让步状语从句的引导词有although, though, as, even if, even though, whether...or..., no matter +疑问词, 疑问词-ever等等。
切记although, though不可与but连用，但可与yet，still等连用。
让步状语从句后置定语修饰the best way宾语从句organize前省略了should（1）although引导让步状语从句时，不能引导倒装句式；though引导让步状语从句时，倒装不到装皆可；as引导让步状语从句时，需倒装，从句的表语和状语或动词原形置于句首，若表语是名词，不可加冠词。
三者使用时句式的差别一定要记清楚。
Girl as she is, she can go alone in the darkness.尽管她是个女孩，她敢一个人走夜路。
（2）when和while也可以引导让步状语从句，意为“虽然”。
While they are my neighbors, I do not know them well.（3）whether...or... 可以引导让步状语从句，意为“不管是......还是......，不论是否......”You'll have to attend the ceremony whether you're free or busy.不管你忙不忙，都要参加这个典礼。
（4）no matter +疑问词, 疑问词-ever也可以引导让步状语从句，意为“不管......；不论......”Whatever you do, do it well.不管你做什么，把它做好。
However hot it is, he won't take off his hat.不管多热，他都不摘下帽子。
（1） , we can take some measures to minimize the losses.A. As earthquakes are difficult to be predictedB. As earthquakes are difficult to predictC. Difficult as earthquakes are to predictedD. Difficult as earthquakes are to predict【答案】D（2）_________ jokes are likely to contribute to a pleasant atmosphere, you’ve got to be careful not to hurt others.A. SinceB. WhileC. IfD. As【答案】B【解析】考查状语从句。
尽管笑话很可能有助于营造一种愉快的气氛，但我们必须小心不要伤害了别人。
根据句意可知选B。
（3）We will have to finish the job, ______.A. difficult it is howeverB. it takes however difficultC. difficult however it isD. however difficult it is【答案】D【解析】考查状语从句。
句意：无论多么困难，我们必须完成这个工作。
however引导让步状语从句，however 是副词，修饰形容词或者副词，接陈述语序。
其结构为：however+adj/adv.+主语+谓语。
故选D。
（4）_______living combines tragedy with splendor, life is beautiful and even tragedies reflect something engaging.A. AlthoughB. Even thoughC. AsD. When【答案】A3. Once she has made up her mind, nothing can change it.她一旦作出决定，任何事情都无法改变。
【句式分析】once在该句中引导条件状语从句，“一旦；一……就；当……的时候”。
We didn't know what we could do once the money had gone.一旦钱花光了，我们就不知怎么办了。
①once作为连接词引导条件状语从句时，后面接现在分词表示与主语是主动关系；接过去分词表示与主语是被动关系。
Once printed, this dictionary will be very popular!一旦出版，这本词典将会非常受欢迎！②在once引导的从句中，要用一般时态代替将来时态。
Once you start, you will never give up.一旦你开始了，就不要放弃。
语法填空(2015·北京高考改编)______ the damage is done, it will take many years for the farmland to recover.【答案】Once【解析】考查连词。
句意：一旦农田遭到了破坏，那么它需要很多年才能恢复。
学%4. Our legs were so heavy and cold that they felt like blocks of ice.我们的腿又沉又冷，感觉就像大冰块。
【句式分析】句中so...that...意为“如此……以至于……”，that引导结果状语从句。
①He walked so fast that I couldn't follow him.他走得太快，我都跟不上了。
②It is so good a film that I like to see it a second time.这部电影如此好，以至于我想再看一遍。
【名师点津】详析so...that与such...that（1）so...that中的so后面跟形容词或副词；such...that中的such后面接名词(或名词短语)。
（2）当that前的名词有表示数量多少的词many，much，few，little等修饰时，只能用so...that。
（3）当that前是单数可数名词且该名词前面有形容词修饰时，可以用so＋adj.＋a/an＋n.或such＋a/an ＋adj.＋n.。
（4）在so...that...结构中，若将so＋adj./adv.置于句首，则其后的主句要用部分倒装。
So cold was the weather that we had to stay at home.天气太冷，我们只好待在家里。
So much did they eat that they could not move for the next hour.他们吃得太多了，一个小时都动弹不得。
单句改错（1）It was so cold weather that we had to stay at home.（2）The case is very heavy that I can't lift it.（3）（2017·全国卷Ⅰ）I was so much nervous that I could hardly tell which direction was left. 【答案】（1）so→such （2）very→so （3）去掉much（2）考查固定句型。