十年高考高考英語真題分項詳解 專題12 英語句法 狀語從句（含解析）-人教高三全冊英語試題

十年（20102020）高考英語真題分項詳解12英語句法狀語從句1.(2010福建)The girl had hardly rung the bell the door was opened suddenly, and her friend rushed out to greet her.A. before B. until C. as D. since【答案】A【解析】根據 “rung the bell” 和 “the door was opened “的發(fā)生先后, 可以得出答案。句子的含義是：女孩還沒來得及按門鈴, 門就突然打開了。她的朋友們一擁而上去歡迎她。2.(2010上海) our manage objects to Toms joining the club, we shall accept him as a member. A. Until B. Unless C. If D. After【答案】B【解析】此句意思是 “除非我們經理反對tom加入俱樂部, 不然我們都應接受他成為其中一員。”3.(2010安徽)The engineers are so busy that they have zero time for outdoor sports activities, _they have the interest. A. wherever B. whenever C. even if D. as if【答案】C【解析】句意為 “工程師們非常繁忙, 即使（even if）有戶外體育活動的興趣也沒有時間去做?！?.(2010安徽)Just use this room for the time being, and well offer you a larger one _it becomes availableA. as soon as B. unless C. as far as D. until【答案】A【解析】句意為 “僅暫時使用此房間, 它一（as soon as）可以正常使用, 我們就提供你一個大點的?！?.(2010江西) Our holiday cost a lot of money. Did it? Well, that doesnt matter_ you enjoyed yourselves.A as long as B unless C as soon as D though【答案】A【解析】as long as只要 unless 除非否則 as soon as 一就 though雖然, 后一句為只要你玩的開心, 花多少錢就不重要。6.(2010全國卷I)Mary made coffee _ her guests were finishing their meal .A. so that B. although C. while D. as if【答案】C 【解析】句意：Mary做咖啡當她的客人們將要結束用餐的時候。根據選項此題考查連詞的用法。so that譯為 “以便”表示目的, although譯為 “盡管, 雖然”, as if譯為 “好像”, while譯為 “當.的時候”, 因此while符合句意, 選擇C。7.(2010全國卷I)The little boy wont go to sleep _ his mother tells him a story.A. or B. unless C. but D. whether【答案】B【解析】句意：這個小男孩兒不會睡覺除非他的媽媽給他講故事。根據選項此題考查連詞的用法。or譯為 “或者”表示選擇, unless譯為 “除非”表示條件, but譯為 “但是”表示轉折, whether譯為 “是否”, 根據句意選擇B。8.(2010遼寧)The old man asked Lucy to move to another chair _ he wanted to sit next to his wife.A.although B.unless C.because D.if【答案】C【解析】句意：這位老人叫露絲挪到另一把椅子上因為他想跟他妻子挨著坐?？崭袂昂髢蓚€句子在邏輯意義上存在原因關系, 所以用because引導原因狀語從句。Although引導讓步狀語從句, unless和if引導條件狀語從句。9.(2010北京) they decide which college to go to, students should research the admission procedures. A. As B. While C. Until D. Once【答案】D【解析】此題重在句意的判斷。 “一旦學生們決定了去哪所大學讀書, 他們就得研究下辦理入學的手續(xù)?！盇. As當；因為.B. while做連詞強調一件事發(fā)生時另外一個動作正在進行；C. Until直到.D. Once一旦。因此選D10. (2010湖南)Tim is in good shape physically he doesnt get much exercise. A. if B. even though C. unless D. as long as【答案】B【解析】句意為：“盡管Tim不經常鍛煉, 但他身材很好。”前后是讓步轉折關系, 故選B項。11.(2010山東)The school rules state that no child shall be allowed out of the school during the day, _ accompanied by an adult.A. once B. when C. if D. unless【答案】D【解析】句意應為“學校規(guī)章規(guī)定：除非有成年人陪同, 否則孩子們在校期間不能出學校?！北硎?“除非”用unless。該句式構成了 “連詞+過去分詞”結構。12.(2010上海) you may have, you should gather your courage to face the challenge.A. However a serious problem B. What a serious problemC. However serious a problem D. What serious a problem【答案】C【解析】根據句意 “無論你有多么嚴重的問題, 你都應該鼓起勇氣面對挑戰(zhàn)”, 而however表讓步時其順序應是：however + 形容詞 + 主語 + 謂語。however做連接副詞, 相當于no matter how,后接形容詞或副詞, 意為 “無論、不管” , 引導讓步狀語從句, 其序為 “however+形容詞、副詞+主語+謂語”。13.(2010四川)Because of the heavy traffic, it was already time for lunch break she got to her office. A. since B. that C. when D. until 【答案】C【解析】句意為： “因為交通阻塞, 當她到達辦公室時已經是午休的時間了?！? 故此處應為when引導的時間狀語從句, 故正確答案為C。14.(2010陜西) John thinks it wont be long he is ready for his new job. A. when B. after C. before D. since【答案】C【解析】所填詞引導狀語從句, 構成It（will）be+時間段+狀語從句, 意思是：過多久才將., 選C。15.(2010重慶)Today, we will begin _we stopped yesterday so that no point will be left out.A. when B. where C. how D. what【答案】B【解析】今天, 為了不遺漏要點, 我們從昨天結束的地方開始。where 引導地點狀語從句。16. (2011全國卷I)Try_ she might, Sue couldnt get the door open.A. if B. when C. sine D. as【答案】D【解析】題目前半句說，她試過；后半句說Sue不能打開門，明顯前后兩句意思相反。As表示雖然，盡管。 17.(2011全國卷II)It was a nice meal, _a little expensive. A. though B. whether C. as D. since【答案】A【解析】句意：那頓飯真美味，盡管有點貴。Though”盡管”，引導讓步狀語從句，該句使用了省略形式，補全為“though it was a little expensive”注意as也可以表示“盡管”，但as作此意時必須使用倒裝結構。18. (2011北京)_ volleyball is her main focus, shes also great at basketball. A. SinceB. OnceC. UnlessD. While【答案】D【解析】句意為：雖然排球是她的主要項目，但她還擅長籃球。while“雖然，盡管”，引導讓步狀語從句。Since“自從”once“一旦”unless“除非”均不合題意。19.(2011上海)If a lot of people say a film is not good, I wont bother to see it, or Ill wait _ it comes out on DVD.A. whetherB. afterC. thoughD. until【答案】D【解析】句意為：如果眾人都說一部電影不好，我不會急著去看，或者會等到結果出來。20.(2011上海)The police officers in our city work hard _ the rest of us can live a safe life.A. in caseB. as ifC. in order thatD. only if【答案】C【解析】句意為：為了讓我們大家過上平安的日子，我市警察工作非常賣力。21.(2011江西)Please call my secretary to arrange a meeting this afternoon, or _ it is convenient to you. A. wheneverB. howeverC. whicheverD. wherever【答案】A【解析】whenever無論何時，however然而 whichever任何一個 wherever 無論哪里。請打電話給我的秘書安排今天下午的會議，或者在任何你方便的    。關系副詞在后句中充當狀語，根據語境可知是指時間，選A。22.(2011浙江)One Friday, we were packing to leave for a weekend away _my daughter heard cries for help.A. afterB. whileC. sinceD. when【答案】D【解析】語義表示我們正在收拾行李，這時我的女兒聽到求救的呼喊。Be doing when表示“正在做某事，這時(突然)”是常見結構，故選D項。23.(2011福建)It was April 29, 2001 _ Prince William and Kate Middleton walked into the palace hall of the wedding ceremony.A. that B. when C. since D. before【答案】B【解析】句意為：2001年4月29日，威廉王子和凱特步入了婚姻的殿堂。24.(2011四川)Frank insisted that he was not asleep _ I had great difficulty in waking him up. A. whether B. although C. or D. so【答案】B【解析】句意為：盡管我很費力才將他叫醒，但Frank堅持說他沒有睡著。Although引導讓步狀語從句。25.(2011四川)As it reported, it is 100 years _Qinghua University was founded. A. when B. before C. after D. since【答案】D【解析】“It is + 時間段 +since + 從句（謂語為一般過去時）”為固定句型，故答案選D。句意為：“正如所報道的那樣，自從清華大學建校以來已有100年時間了?！?6.(2011遼寧)No matter how _ , it is not necessarily lifeless. A. a desert may be dry B. dry a desert may be C. may a desert be dry D. dry may a desert be【答案】B【解析】句意為：無論沙漠多么的干燥，都不肯能沒有生命。How+adj.+陳述語序。27.(2011遼寧)He had no sooner finished his speech _ the students started cheering.A. since B. as C. when D. than【答案】D【解析】句意為：他剛一結束演講，同學們就歡呼起來。固定句式no soonerthan.。28.(2011陜西)The new stadium being built for the next Asian Games will be _the present one. A. as three times big as B. three times as big asC. as big as three times D. as big three times as【答案】B【解析】試題分析：考查倍數表達法。倍數表達法：倍數+as+ adj+名詞 as+其他。注意：倍數永遠都要放在最前面。句意：為了亞運會建設的這做新的體育館將是現在的這座的三倍大。根據句意說明B正確。29.(2011天津)_ regular exercise is very important, its never a good idea to exercise too close to bedtime.A. It B. As C. Although D. Unless【答案】C【解析】although“盡管”; As “如”; Unless “除非”。句意為：盡管有規(guī)律的運動很重要，但是在睡前運動不是一個好主意。30.(2011陜西)_all of them are strong candidates, only one will be chosen for the post. A. Since B. While C. If D. As【答案】B【解析】While的意思是“雖然，盡管”，相當于though或although。這句話的意思是：雖然他們都是強有力的候選人，但只有一個人被選中擔任這個職務。 31.(2011山東)He had his camera ready _ he saw something that would make a good picture.A. even if B. if only C. in case D. so that【答案】C【解析】句意“他準備好了相機以防看到可以拍攝的景物?！眎n case 為“以防；以免”even if為“即使”if only 為“如果”,so that “為了，以便”。32.(2011重慶)To show our respect, we usually have to take our gloves off _ we are to shake hands with.A. whichever B. whenever C. whoever D. wherever【答案】C【解析】句意為“我們不論是跟誰握手的時候，我們常常將手套取下，以示尊敬?！眘hake hands with sb.表示“與某人握手”，本句中的with后缺少賓語，結合句意選C項，whoever在句中引導讓步狀語從句。33.(2011湖南)Jack wasnt saying anything, but the teacher smiled at him _he had done something very clever. A .as if B. in case C. while D. though【答案】A【解析】根據句意，空格處需要填入"好像，仿佛"。故選A。句意：Jack什么也沒說，但老師向他笑了笑，好像他做了件聰明的事情一樣。34.(2011天津)_ regular exercise is very important, its never a good idea to exercise too close to bedtime.A. It B. As C. Although D. Unless【答案】C【解析】although“盡管”; As “如”; Unless “除非”。句意為：盡管有規(guī)律的運動很重要，但是在睡前運動不是一個好主意。35.(2012江蘇9) Thank God you're safe!I stepped back, justto avoid the racing car.A. in timeB. in caseC. in needD. in vain【答案】A【解析】in time意為“及時”，in case意為“萬一，假使”；in need意為“需要”；in vain意為“徒勞，無濟于事”。句意為：謝天謝地，你是安全的！我走回去，正好避免賽車。符合題意。36. (2012湖北)The furniture, with its modern style and bright colors, suits modern houses and their gardens, but looks _ in the garden of a traditional home A. out of questionB. out of orderC. out of sightD. out of place【答案】D 【解析】句意為：這套家具款式新潮，色澤明麗，與新式房屋和花園配套，但看起來與傳統(tǒng)的房子和花園不相稱。D項意為“與不相稱”，符合句意。A項意為“毫無疑問”，B項意為“次序顛倒”，C項意為“看不見”，都與句意不符。 37.(2012重慶Coach, can I continue with the training? Sorry, you cant _you havent recovered from the knee injury.A. until B. before C. to consider D. unless【答案】 C【解析】短語語境表示“抱歉，你不能繼續(xù)訓練因為你膝蓋受的傷還沒有恢復?！庇纱丝芍瞻滋幒竺鏋樵驙钫Z從句，C選項符合題意。因此，正確答案為C選項。 38.(2012山東)A number of high buildings have arisen _ there was nothing a year ago but ruins. A. whenB. whereC. before D. until 【答案】B【解析】此處是where引導地點狀語從句，表示“在地方”。 句意：很多高樓在一年前還是廢墟的地方矗立起來了。39. (2012山東)He smiled politely _ Mary apologized for her drunken friends. A. asB. if C. unlessD. though【答案】A【解析】此處是as引導這個時間狀語從句，這里smile和apologize同時進行，as意為：當的時候。句意：當瑪麗為她喝醉了朋友道歉時，他禮貌地微笑著。40. (2012福建)It is hard for the Greek government to get over the present difficulties_ gets more financial support from the European Union.A. If B. unless C. because D. since【答案】B【解析】根據句意可知“除非有來自歐洲聯盟的更多的經濟支持，否則希臘政府很難克服目前的困難”，只能選擇unless“除非”才能使句意完整?？疾闋钫Z從句的連詞題事實上非常簡單，只要找到句中的關鍵詞，然后從句意上去排除就行了，本題關鍵詞是hard和more financial support。41. (2012江西)You can borrow my car you promise not to drive too fast.A.unless B.even ifC.in caseD.as lone as【答案】D【解析】句意為只要你保證不開得太快，你就可以把我的車借走。A.unless除非，B.even if即使，C.in case以防萬一，D.as long as只要。選D。42.(2012遼寧)Leave your key with your neighbor you lock yourself out one day. A. as long as B. even though C. in case D. as if 【答案】C【解析】A項意為“只要”；B項意為“盡管”；C項意為“以防”；D項意為“好像”。根據句意：把你的鑰匙留給你的鄰居，以防你把自己鎖在外面了。所以選C項。43. (2012四川)If you happen to get lost in the wild, youd better stay _ you are and wait for help.A. why B. where C. who D. what【答案】B 【解析】where引導的地點狀語表明主句動作發(fā)生的地點，即：你最好呆在你現在所在的地方。故選B。44.(2012陜西)Hot _the night air was, we slept deeply because we were so tired after the long journey.A. althoughB. as C. while D. however【答案】B 【解析】hot是做從句的表語，提前說明從句時倒裝，即as引導的讓步狀語從句中，要將從句中的表語，狀語，或動詞原形提到as之前，故選B。45.(2012陜西)All the photographs in this book, _ stated otherwise, date from the 1950s.A. unless B. until C. once D. if【答案】A 【解析】題干意思是：除過被標明的以外，書中其余所有的圖片都可以追溯到20世紀50年代。所填詞表條件，從句用了省略句，引導詞意思是：除非，如果不，選A。46.(2012北京)Look at those clouds!Dont worry. _ it rains, well still have a great time.A. Even if B.As though C. In case D. If only【答案】A【解析】even if 即便，as though似乎，in case 以防，if only要是多好。47.(2012全國卷II)I had hardly got to the office _ my wife phoned me to go back home at once.A. when B. than C. until D. after【答案】A【解析】此題較易。只要辨認出固定句型hardly. . .when . . .問題即刻解決。句意：我剛到辦公室，我妻子就給我打電話讓我立刻回家。 48.(2012全國卷I) I don't believe we've met before, I must say you do look familiar.A. therefore B. althoughC. since D. unless【答案】B【解析】句意：盡管我一定說你確實看起來熟悉，但我相信我們以前沒見過面。根據句意只有although符合題意。49. (2013安徽)Its much easier to make friends _ you have similar interests.A. unlessB. whenC. even thoughD. so that【答案】B【解析】本題可以把四個選項分別放到空處，其中只有選項B能使語意通順，為正確答案；其他三個選項的意思分別是“除非”，“即使”，“以便”，都不合乎句意，排除。50. (2013北京)I took my driving license with me on holiday, _ I wanted to hire a car.A. in case B. even if C. ever sinceD. if only【答案】A【解析】本題的解題關鍵是弄清“我?guī)я{照”跟“租車之間”之間的邏輯關系，這樣正確答案就很容易鎖定了。句意為度假時我?guī)Я笋{照，以防我要租車。 51.(2013江蘇)In the global economy, a new drug for cancer, _ it is discovered, will create many economic possibilities around the world.A. whateverB. whoeverC. whereverD. whichever【答案】C【解析】在狀語從句_ it is discovered中，不缺少任何主要成分，所以引導詞只能在從句中作狀語，只可以選擇副詞性質的，所以答案很明顯，選C。52.(2013遼寧)One can always manage to do more things, no matter_ full ones schedule is in life.A. how B. what C. when D. where【答案】A【解析】讓步狀語從句中，no matter how=however。根據how+adj./adv.的原則，本題中full是形容詞，所以選擇A。53.(2013湖南)You must learn to consult your feelings and your reason _ you reach any decision.A. althoughB. beforeC. becauseD. unless【答案】B【解析】解題思路：理清邏輯關系。對比reach any decision 和consult your feelings and your reason關系，不難看出，兼顧好情感與理智在前，做任何決定在后。54.(2013江西)She says that shell have to close the shop _ business improves.A. ifB. unlessC. afterD. when【答案】B.【解析】A.如果；B.如果不；除非；C.在之后；D.當時候。句意為她說如果生意沒有好轉的話，她將不得不關掉這個商店。55.(2013陜西)I have heard a lot of good things about you _ I came back from abroad.A. untilB. since C. whenD. before【答案】A【解析】現在完成時態(tài)的其中一個用法是表示一個動作“從過去的某個時候發(fā)生，一直延續(xù)到現在”，從本句中的主句是現在完成時，從句是一般過去時來看，整個句子表達的正是這樣的一個動作，故連詞用since；如果用until或者before，則主句表示的動作都是發(fā)生在從句之前，都應該用過去完成時，排除B，C；如果用when，則主句應該用一般過去時，排除D。56. (2013上海)They promised to develop a software package by the end of this year, _ they might have.A. however difficultB. how difficultC. whatever difficultyD. what difficulty【答案】C【解析】題干的意思是：“他們承諾，無論可能有什么困難，到今年底都要開發(fā)出一個軟件包”。本題是一個主從復合句，由句意“無論”可知是讓步狀語從句，從而排除選項B，D。從句中的關鍵詞是實義動詞have，用還原法，可知是短語have difficulty，所以從句為whatever difficulty they might have。如果選B，則從句要改為：however difficult it might be。57.(2013上海)I cannot hear the professor clearly as there is too much noise _ I am sitting.A. beforeB. untilC. unlessD. where【答案】D【解析】本題四個選項都為常見狀語從句引導詞，A. before引導時間狀語從句，“在之前”；B. until引導時間狀語從句，“直到為止”；C. unless引導條件狀語從句，“除非，如果不”；D. where引導地點狀語從句，“在的地方”。58.(2013四川)He is so busy. He cannot afford enough time with his son _ he wants to.A. even ifB. as ifC. becauseD. before【答案】A【解析】句子的前段說他不能騰出時間，后段說他想，前后之間明顯是讓步關系，“即使想，也不能”，故正確答案是even if。其他三個選項的意思分別是好像，因為，在之前，均不合句意，排除。59.(2013新課標I)Theres no way of knowing why one man makes an important discovery _ another man, also intelligent, fails.A. sinceB: ifC. asD. while【答案】D【解析】四個選項都可以作從屬連詞使用，引導狀語從句。since引導時間狀語從句，意思是“自以來”；引導原因狀語從句，意思是“既然；因為”。if引導條件狀語從句，意思是“如果”。as 引導時間、原因、方式、比較等狀語從句，意思是“當的時候；隨著；因為；像；和”等。while引導時間狀語從句，意思是“當的時候”。此外，while還可作并列連詞，表示轉折和對比，意思是“然而”，顯然符合句意的是選項D。60.(2013天津) _ small, the company has about 1,000 buyers in over 30 countries.A. AsB. IfC. AlthoughD. Once【答案】C【解析】although做連詞意為“盡管，雖然”，符合前后的讓步的邏輯關系；實際上，本句省略了主語和系動詞it is。61.(2013重慶)_we have enough evidence, we can't win the case.A. OnceB. As long asC. UnlessD. Since【答案】C【解析】“我們有足夠的證據”和“我們不能贏得這個案子”之間的關系有可能是兩種：（1）讓步關系；（2）否定前面的意思。四個選項中，沒有表讓步關系的although/though,，那么答案就應該是否定前面的意思，用unless，“如果我們沒有，我們就不能”；其他三個連詞明顯與句意不符，排除。62.(2014安徽)The meaning of the word “nice” changed a few times _ it finally came to include the sense “pleasant”.A.before B.afterC.since D.while【答案】A【解析】根據finally可知，從句謂語動詞的動作后于主句的謂語動詞的動作而發(fā)生，據此可排除B和C，while引導時間狀語從句時，表示主句和從句謂語動詞的動作同時發(fā)生。句意：“nice”一詞的含義變化了數次，直到最后它才包括了“pleasant”的含義。故選A。63.(2014北京)_ the forest park is far away, a lot of tourists visit it every year.A.As B.WhenC.Even though D.In case【答案】C【解析】句意：即使(盡管)那個森林公園很遠，每年還是有很多人去參觀。even though 意為“即使，盡管”，引導讓步狀語從句；in case引導目的狀語從句。故選C。64.(2014湖南)You will never gain success_you are fully devoted to your work.A. when B. becauseC. after D. unless【答案】D【解析】句意：如果你不是全身心地投入到工作中去，你永遠不可能獲得成功。此處unless相當于if not，表示含有否定意義的條件。65.(2014江蘇)Lessons can be learned to face the future, _ history cannot be changed.A.though B.As C.since D.unless【答案】A【解析】句意：盡管歷史不可能被改變，但是我們可以吸取教訓來迎接未來。根據語境可知此處用though引導讓步狀語從句，故A項正確。66.(2014江西)It was the middle of the night _ my father woke me up and told me to watch the football game.A. that B. as C. which D. when 【答案】D【解析】句意：當我父親叫醒我，告訴我看球賽的時候是半夜。when在此引導時間狀語從句。此題易誤選A項，原因是把此句看成了強調句型，要注意分析句子成分。67.(2014陜西)The young couple, who returned my lost wallet, left _ I could ask for their names.A. while B. before C. after D. since【答案】B【解析】句意：那對歸還了我錢包的年輕夫妻在我詢問他們的姓名之前已經離開了。所填詞引導時間狀語從句，意思是“在之前”，故選B。68.(2014四川)I'll be out for some time. _ anything important happens, call me up immediately.A. In case B. As if C. Even though D. Now that【答案】A【解析】in case萬一，以防；as if好像；even though即使；now that既然，由于。句意：我要出去一會兒。萬一發(fā)生了什么重要的事情，馬上給我打電話。根據句意可知選A項。69.(2014天津)_ you start eating in a healthier way, weight control will become much easier.A. Unless B. Although C. Before D. Once【答案】D【解析】unless 如果不，除非，引導條件狀語從句；although雖然，盡管，引導讓步狀語從句；before 以前，引導時間狀語從句；once一旦，引導時間狀語從句。句意：一旦你開始用健康的方式吃飯，體重控制將會變得容易多了。70.(2014浙江)Cathy had quit her job when her son was born _ she could stay home and raise her family.A.now that B.as if C.only if D.so that【答案】D【解析】句意：凱西在她兒子出生的時候就辭去了工作，這樣她就能在家里照顧家人了。根據句意知，此處是so that引導的目的狀語從句，同時由從句中的could也可以推斷出應該選so that。now that既然；as if似乎；only if只要。71.(2014重慶)Half an hour later, Lucy still couldn't get a taxi _ the bus had dropped her.A. until B. when C. although D. where【答案】D【解析】主句“Lucy couldn't get a taxi”和從句“the bus had dropped her.”均需要地點狀語。故選D。72.(2015湖南)Video games can be a poor influence if _ in the wrong hands.A. to leaveB. leaving C. leaveD. left【答案】D【解析】試題分析:用作狀語的從句叫狀語從句。狀語從句可置于句首、句末或句中，-般來說，狀語從句都比較完整。但是，在-一些狀語從句中存在的省略問題，可以歸納為以下兩點:1.when,while,if as if althoughthough as,until, once,whether,unless,where等引導的從句中,如果其謂語為be ,而主語與主句的主語相同時,則從句的主語和be可省略。有時從句的主語為in時，也可省略it或從句中的有關成分。2.than,as,no matter whatwho等后面成分的省略。句意:如果電子游戲落入一個錯誤的人手中就能夠產生一個不良影響。73. (2015北京)You wont find paper cutting difficult _you keep practicing it.A. even if B. as long as C .as if D. ever since【答案】B【解析】試題分析：句意：只要你不斷練習，你不會覺得剪紙很難。A. even though即使，雖然;B. as long as只要；C. as if猶如，好像；D. ever since自從。結合句意，故選B。74.(2015北京) _the damage is done, it will take many years for the farmland to recover.A. Until B. Unless C. Once D. Although【答案】C【解析】試題分析:句意:一旦農田被毀壞，將需要許多年的時間才能得以恢復。A unti1 譯為到.為止，直到.才，.以前; B. unless譯為如果不，除非; C. once譯為一旦，一 經. :便; D. although譯為雖然，然而，盡管。結合句意，故選C75.(2015重慶)If you miss this chance, it may be years _ you get another one.A.as B. before C. since D. after【答案】B 【解析】試題分析： As 因為了 before之前；since由于；after之后； 句意：如果你錯過這次機會，可能要等一的才會再有。It be 時間段 before .表示要。多么才會。，故選B項。 76.(2015浙江) a single world can change the meaning of a sentence, a single sentence can change the meaning of a paragraph.A. Just as B. Even though C. Until D. Unless【答案】A【解析】試題分析：句意：正如一個單詞可以改變句子的意思那樣，一個句子也能夠改變一個段落的意思。A意為正如， B意為盡管，用于讓步狀語從句， C意為直到， D意為除非。分析逗號前后表達所使用的結構句式是相同的：world 對應 sentence, a sentence 對應 paragraph. 這正好是一種對應，也就是正如的關系，此外，如果把BCD選項代入進去翻譯，可以發(fā)現這種翻譯是不正確的。所以答案是選A。77.(2015天津) We need to get to the root of the problem_ we can solve it.A. whileB. afterC. beforeD. as【答案】C【解析】試題分析：句意：在我們解決問題之前，我們需要找到問題的根源。A. while當時候，而；B. after在之后； C. before 在之前；D. as正如。根據句意可知選C。78.(2015四川)There is only one more day to go your favorite mu