1、Section_Grammar_条件状语从句和让步状语从句语法图解探究发现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 unlessyou take a plane.Even if you were busy, you should take care of your family.Clever as he is, he doesn
2、t 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 howcold it is.Although/Though she works very hard, yet (still) she makes very slow progress.我的发现(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，主句用将来时，从句
3、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1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/providing
4、 (that)(如果), on condition that (条件是), in case (如果，万一), when (如果；既然，考虑到)。IfTom 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 asyou 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
5、do?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 ifyou 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。Unless one is fully prepared, outdoor sports ca
6、n sometimes mean injuries.要是没有充分准备的话，户外运动有时会意味着受伤。2主将从现条件状语从句如果表示将来的时间，用一般现在时代替一般将来时。I wont wait for him unless he calls me.除非他给我打电话，否则我不会等他。即时演练1(1)完成句子(2015北京高考改编)You wont find paper cutting difficult as_long_as_you_keep_practicing_it (只要你不断地练习)(2015北京高考改编)Once_the_damage_is_done (一旦农田被毁坏), it wil
7、l take many years for the farmland to recover.(2014湖南高考改编)You will never gain success unless_you_are_fully_devoted_to_your_work (除非你全身心地投入到工作中去)(2014四川高考改编)Ill be out for some time. In_case_anything_important_happens (万一发生了什么重要的事情), call me up immediately.(2)单句语法填空(2015江苏高考改编)It is so cold that you
8、cant go outside unless fully covered in thick clothes.(2015陕西高考改编)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.Ill let you have the book on condition that you return it to me next week.(2014大纲卷改编)Unless some extra
9、money is_found (find), the theatre will close.3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 exposed to very loud music every day, young people may risk going deaf.如果年轻人每天都处于嘈杂的音乐的影响中，他们很可能有变聋的危险。If (it is) possible, this machine can be changed for a new one.如果可能的
10、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了。4祈使句and/or陈述句“祈使句and/or/or else/otherwise陈述句”句型中，祈使句在意义上实际上相当于条件状语从句。Give me all your money, and Ill let you go.If you give me all your money, I will let you go.给我你所有的钱，我就放你走。Run fast, oryoull be late for school.If you
11、dont run fast, youll be late for school.快点跑，要不然你就上学迟到了。即时演练2(1)单句语法填空(2015湖南高考改编)Video games can be a poor influence if left (leave) in the wrong hands.He wont go there unless invited (invite)He picked up a wallet while walking (walk) home.(2014大纲卷改编)Call me tomorrow and Ill let you know the lab res
12、ult.Hurry up or we will be late.(2)同义句转换If you work harder, you will succeed in your studies.Work_harder_and you will succeed in your studies.If you dont be careful, you will fall into the water.Be careful, or/or_else/otherwise you will fall into the water.二、让步状语从句让步状语从句常由以下从属连词引导：though/although (尽
13、管，虽然), as, even if/even though (即使), 疑问词ever/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。 (2015湖南高考)Although the job takes a significant amount of time, most students agree that the experience is worth it
14、.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 thoughthe forest park is far away, a lot of tourists visit it every year.(2014北京高考改编)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间或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 fiel
15、d.Though/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 t
16、o lose weight without cutting down the amount you eat.无论你多么努力，如果不减少饮食，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，你都得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
17、句，而“疑问词ever”还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.(2016江苏高考改编)尽
18、管有人被成功的需求所激励，但也有人被失败的恐惧所激发。While the students came from different countries, they got along quite well in the summer camp.(2015福建高考改编)尽管学生们来自不同的国家，他们在夏令营相处得非常好。即时演练3(1)完成句子(2016浙江高考改编)While_online_shopping_has_changed_our_life (虽然网上购物改变了我们的生活), not all of its effects have been positive.(2016北京高考改编)M
19、y grandfather still plays tennis now and then, even_though_hes_in_his_nineties (尽管我爷爷已经九十多岁了)Young_as/though_she_is (尽管年轻), she has travelled to many countries to put on shows.(as倒装)Whichever/No_matter_which_road_you_take (无论你走哪一条路), it will lead you to the station.Youll have to attend the ceremony
20、whether_youre_free_or_busy (不管你有空没空)(2015安徽高考改编)Though_scientists_have_learned_a_lot_about_the_universe (尽管科学家对宇宙已经了解了很多), there is much we still dont know.(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.althoug
21、has/though.单句语法填空1He will not leave unless it is fine tomorrow.2If you ring the doorbell when visiting our home, you will_be_greeted (greet) by our dog.3Every time he comes (come) to visit me, he will buy me some books.4Work hard and you will succeed sooner or later.5Assuming (assume) that we cant g
22、et the necessary equipment, we will have to give up the experiment.6No matter which dictionary you want to buy, Ill pay for it.7Film has a much shorter history, especially when compared to such art forms as music and painting.8There are so many cars that you should be careful while crossing (cross)
23、the road.9Whether it is right or wrong, his opinion should be paid attention to.10(2014江苏高考改编)Lessons can be learned to face the future, though/although history cannot be changed.单句写作1(2015全国卷书面表达)If_you_are_able_to_come_with_us,_please let us know and well wait for you at the school gate at 9 in th
24、e morning.如果你能和我们一起去，请告诉我们，我们会早上9点在校门口等你。2(2015天津高考满分作文)If_you_come_to_our_school,_you are likely to meet some difficult problems in your life.如果你来我们学校，你可能会在生活当中遇到一些困难。3(2014四川高考标准范文)Though_some_of_the_questions_seem_unfamiliar_to_me,_they are easy to answer.虽然这些问题对我来说看起来不是很熟悉，但是他们很容易回答。4(2014重庆高考标准
25、范文)However_far_away_we_are,_we feel close to each other.不论我们相隔有多远，我们彼此都感到很近。5(2014湖南高考标准范文)If_you_stop_walking,_the microfan can work immediately to dry your feet. 如果你要停下脚步，你鞋内的微型风扇就会立即工作使你的脚变干。6(2014重庆高考满分作文)If_we_spend_too_much_time_on_phones,_we will lose the communication skills we need in the f
26、uture.如果我们在手机上花费过多的时间，我们就会失去将来我们需要的交流技能。.短文改错On the first day when I went to high school, I felt exciting. After 9 years study, I felt I was so closely to university. During the first year, I made many friends. I got to know all of my classmates. Because the school work was tough, I shared happiness
27、 and sorrow for my friends. When second year came, I was arranged to other class. I was worried that no one could talk to me, but I made new friends quickly. Now it was the last year of my high school life, and Im determined to study harder and make a greater progress. High school life is challenged for me, but I wont give out.答案：第一句：excitingexcited第二句：closelyclose第五句：BecauseThough/Although; forwith第六句：When后加the; otheranother第八句：wasis; 去掉a第九句：challengedchallenging; outin
