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1、1/6Section Grammar条件状语从句和让步状语从句语 境 自 主 领 悟先观察原句If you say the word “communication”， most people think of words and sentences.In case there is a fire，what will you do first？You wont arrive there on time unless you take a plane.Even if you were busy，you should take care of your family.Clever as he is，
2、he doesnt make great efforts in his lesson.However much I tried，I couldnt work the question out.He keeps taking physical training in winter no matter how cold it is.Although/Though she works very hard，yet (still) she makes very slow progress.后自主感悟1.句中，黑体部分引导条件状语从句；句中，黑体部分引导让步状语从句。2.由句可知，在条件状语从句中，主句用
3、将来时，从句用一般现在时代替一般将来时。3.句中 although/though 引导让步状语从句不与 but 连用，但可以与 yet 或 still 连用。4.由句可知，as 引导让步状语从句且置于句首时，从句用倒装语序。5.句中，however 和 no matter how 都引导让步状语从句，两者可以换用。一、条件状语从句2/61条件状语从句的引导词引导条件状语从句的词/短语有：if (假设，如果)，unless (除非)，so/as long as (只要)，suppose/supposing (that)(倘若，假设); only if (只有才)，provided/providi
4、ng (that)(如果)，on condition that (条件是)，in case (如果，万一)，when (如果；既然，考虑到)。If Tom passes the examination，his father is going to buy him a bicycle.如果汤姆考试及格，他父亲将会给他买一辆自行车。You may watch TV as long as you finish your homework.只要你做完作业，你就可以看电视。Suppose/Supposing the plane does not arrive on time，what shall I d
5、o?假定飞机不能准时到，我该怎么办？How can they learn anything when they spend all their spare time watching television？既然他们把所有空闲的时间都用来看电视了，还能学到什么东西呢？Only if you take an active part in physical activity will you be able to keep fit and stay healthy.只有积极参加体育锻炼，你才能保持身体健康。2主将从现条件状语从句如果主句表示将来的时间，从句用一般现在时代替一般将来时。I wont w
6、ait for him unless he calls me.除非他给我打电话，否则我不会等他。即时训练 1 单句语法填空It is so cold that you cant go outside unless fully covered in thick clothes.I believe you will have a wonderful time here once you get to know everyone else.I told him he would succeed only if he tried hard.二、让步状语从句让步状语从句常由以下从属连词引导：though
7、/although (尽管，虽然)，as，even if/even though (即使)，疑问词3/6ever/no matter疑问词(不管，无论)等。1though，although; even if，even though“虽然，尽管” 。though，although 这两者意思大致相同，一般可互换，都可与yet，still，nevertheless 连用，但不能与 but 连用。Although the job takes a significant amount of time，most students agree that the experience is worth it
8、.虽然这份工作要花大量的时间，但大多数学生都同意这次经历是值得的。Even though the forest park is far away，a lot of tourists visit it every year.尽管森林公园很远，每年仍有很多游客前去游览。2as，though“虽然但是，尽管” 。as 引导的让步状语从句必须以部分倒装的形式出现，被倒装的部分可以是表语、状语或动词原形，though 有时也用于这样的结构中，但 although 不可以这样用。Tired as/though he was，he continued working in the field.Though/
9、Although he was tired，he continued working in the field.尽管他很累，他还继续在田里工作。3whether .or .表示“不论是否；不管是还是”之意。I have decided to take the job offer，whether it is good or bad.无论好坏，我已经决定接受这份工作邀请。4 “no matter疑问词”或“疑问词ever”的含义为“不管都” ，它们引导的让步状语从句可以互换。However/No matter how hard you try，it is difficult to lose wei
10、ght without cutting down the amount you eat.无论你多么努力，如果不减少饮食量，那么减肥是很难做到的。Whichever/No matter which country you travel to，you should obey the law of the land.不论你到哪个国家去旅行，你都应该遵守这个国家的法律。No matter what/Whatever I do，I will try my best to do it well.无论我做什么，我都会尽力做好。名师点津 “no matter疑问词”结构只能引导让步状语从句，而“疑问词ever
11、”还4/6可以引导名词性从句。Whatever(No matter what) you say，I wont believe you.(whatever 引导让步状语从句)Ill eat whatever(no matter what) you give me.(whatever 引导宾语从句)5有时 while 也可以引导让步状语从句，但一般要位于句首。While some people are motivated by a need for success，others are motivated by a fear of failure.尽管有人被成功的需求所激励，但也有人被失败的恐惧所
12、激发。While the students came from different countries，they got along quite well in the summer camp.尽管学生们来自不同的国家，他们在夏令营相处得非常好。即时训练 2 单句改错Although my uncle is old，but he looks very strong and healthy.去掉 butChild although he was，he knew what was the right thing to do.althoughas/thoughHow busy we are，its
13、necessary for us students to spare some time to do exercise.HowHowever三、状语从句的省略在时间、条件、让步等状语从句中，当从句主语与主句主语一致或从句主语是 it，从句的谓语部分含有 be 动词时，可以将从句中的主语与 be 动词一起省略。If (it is) possible，this machine can be changed for a new one.如果可能的话，这台机器会换成一台新的。While (she was) listening to the radio，she fell asleep.她在听收音机时睡着
14、了。Though(it is) not very big，the restaurant is popular in our area.尽管不是很大，但这家餐馆在我们这个地区很受欢迎。即时训练 3 单句语法填空Video games can be a poor influence if left (leave) in the wrong hands.5/6He picked up a wallet while walking (walk) home.Although built(build) ten years ago，the house still looks new.单句语法填空1He wi
15、ll not leave unless it is fine tomorrow.2If it rains(rain) tomorrow, we will have the PE lesson in the classroom.3One can always manage to do more things, no matter how full ones schedule is in life.4Provided/Providing that there is money on you, you may buy whatever you like.5Try as/though he might
16、, he couldnt get the door open.6No matter which dictionary you want to buy，Ill pay for it.7Film has a much shorter history，especially when compared(compare) to such art forms as music and painting.8There are so many cars that you should be careful while crossing (cross) the road.9Whether it is right
17、 or wrong，his opinion should be paid attention to.10Lessons can be learned to face the future，though/although history cannot be changed.单句改错1If I was only a child when I studied in that classroom，I will never forget it.IfAlthough/Though2Although I was quite unwilling to say “Goodbye” to my father, b
18、ut he had to leave for my hometown in the evening. 去掉 but3Parents today do their best to leave possessions for their kids, if they are rich or poor. ifwhether4The notice says who you are, you must show your tickets to enter the exhibition. whowhoever5If you want to come here, and you can take the bu
19、s from the sixth station. 去6/6掉 and6Unless asking to speak, you should remain silent at the meeting. askingasked7Unless I have a large amount of money, I would travel to the world with my family. UnlessIf8Hot although the night air was, we slept because we were so tired after the long journey. althoughthough/as9What difficulty you may face, we will always fight along with you. WhatWhatever10Supposed you fail a second time, dont get disappointed. SupposedSuppose/Supposing