2012年陜西省高考英語試題及答案解析

1、 2012陜西卷答案解析p12012陜西卷語音知識1 【答案與解析】d。本題考查輔音字母g的發(fā)音，在目標詞中g發(fā)/g/音。四個選項中只有d項與此發(fā)音相同。a項中g不發(fā)音；b和c項中g發(fā)/ d/音。2 【答案與解析】d。本題考察元音字母u的發(fā)音規(guī)則，在目標詞中u發(fā)/ ju:/，而四個選項中選d。a項中發(fā)/；b項中發(fā)/ u:/；c項發(fā)/ /。3 【答案與解析】c。本題考查輔音字母組合ch的發(fā)音。在目標詞中發(fā)/ t/音，四個玄子昂中只有c項與此相同。a項和d項中發(fā)/ k /音；b項中發(fā)/音。4 【答案與解析】b。本題考查元音字母組合ie的發(fā)音。在目標詞中發(fā)/ i:/音，選b。a項中發(fā)/ ai /；c

2、項中發(fā)/ i /；d項中發(fā)/ i /。5 【答案與解析】c。本題考查詞綴-es的發(fā)音。在目標詞中發(fā)/ s /，選c項。a項中發(fā)/z/，在b,d兩項中-es發(fā)/iz/。p22012陜西卷情景對話 6 【答案與解析】f。根據(jù)后文中的could you repair it, please?可以推斷出此情景是在一家修理店，故此處選f。7 【答案與解析】d。由上下文可知本句是問機子的問題所在，故選d。8 【答案與解析】c。根據(jù)后文可知此處意思是：我們先看看機子，選c。9 【答案與解析】g。由后一句可知此處談論修理的時間，故選g。10 【答案與解析】a。根據(jù)前一句可知此處是對征求意見的應答，選a。語法和詞

3、匯知識11 a62012陜西卷【答案與解析】a 考查介詞。所填介詞與系動詞be構(gòu)成固定句型，意思是：反對，選a。be for支持，贊成；be to到達；be with和在一起，都與句意不符。12 a112012陜西卷【答案與解析】b 考查動詞時態(tài)和主謂一致。主語中心詞是the basketball coach，是單數(shù)，根據(jù)shortly after the match可以推斷出題干時態(tài)是一般過去時，故選b。13 a22012陜西卷【答案與解析】d 考查代詞。所填詞做使役動詞make的形式賓語，真正賓語是to go for a walk，選d。14 a152012陜西卷【答案與解析】c 考查定語

4、從句。所填詞前有逗號，是非限制性定語從句，先行詞是整個主句，關系詞在從句中做主語，選c。其余選項與題干不符。15 a92012陜西卷【答案與解析】a 考查非謂語動詞。非謂語動詞短語后有逗號，說明非謂語動詞做題干的狀語，邏輯主語是句子的主語we，非謂語動詞與邏輯主語是主動關系，且其動作與謂語動詞wait的動作同時進行，用動詞v-ing的一般式，選a。16 a172012陜西卷【答案與解析】c 考查交際用語。a項意思是：一點也不麻煩；b項意思是：不用謝；c項意思是：好的，行；沒關系；d項意思是：你永遠說不清楚。所填部分是對im sorry的應答，根據(jù)情景選c。17 a102012陜西卷【答案與解析

5、】b 考查虛擬語氣。根據(jù)主語的謂語動詞可知題干是表示與過去事實相反的虛擬語氣，從句謂語動詞用had done，選b。18 a142012陜西卷【答案與解析】b 考查狀語從句。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。19 a82012陜西卷【答案與解析】d 考查動詞短語辨析。break in打斷； 闖入； 開始工作；break up結(jié)束，散開；分解；break out爆發(fā)；break down崩潰，垮掉；出毛?。粧佸^。題干意思是：他時不時地停下來擦去額頭的汗水，因為空掉出毛病了。選d。20 a132012陜西卷

6、【答案與解析】b 考查名詞性從句。所填詞引導的從句做動詞choose的賓語，引導詞在從句中做主語，意思是：無論哪件，選b。其余選項與句意不符。21 a172012陜西卷【答案與解析】c 考查交際用語。a項意思是：我想是這樣；b項意思是：就是它；c項意思是：你一定在開玩笑；d項意思是：看情況。題干中前一分句意思是：旅行不該超過一小時。而應答句的后一分句意思是：至少兩小時了，根據(jù)情景選c。22 a92012陜西卷【答案與解析】d 考查非謂語動詞。所填詞與前文構(gòu)成固定句型have no choice but to do sth，故選d。23 a102012陜西卷【答案與解析】b 考查情態(tài)動詞。所填情

7、態(tài)動詞與too 構(gòu)成固定句型cant/couldnt too，意思是：再都不為過，選b。24 a112012陜西卷【答案與解析】c 考查動詞時態(tài)。根據(jù)問句中的two oclock和應答句中的by then可知所填詞表示的動作在當時正在進行，用將來進行時，選c。25 a142012陜西卷【答案與解析】a 考查狀語從句。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。b12012陜西卷完形填空【要點綜述】一個陽關明媚的下午，一位小姑娘來到樹林里散步，走著走著她迷路了，途中她到過一個奇怪的小屋，但被所聽到的

8、聲音嚇得跑了出來，她繼續(xù)向前走，直到最后，小姑娘又冷又餓，臥倒在一條小溪邊。這時，小姑娘的家人在到處找她，但他們不知道她的蹤跡，這時，他們家的小狗laddy聞著小姑娘的氣味，幾經(jīng)周折，最終找到了她。26 【答案與解析】a 考查時間狀語從句。句意是：她穿過一大片草地，只是她意識到自己迷路了，即在她意識到自己迷路之前她已經(jīng)走過了一大片草地。選a。27 【答案與解析】a 考查動詞。wonder想知道；forget忘記；remember記得；regret遺憾，后悔。根據(jù)賓語what to do可以推斷出此處選a。28 【答案與解析】d 考查動詞。prefer更喜歡；expect期待，預料；fail沒做

9、到，失?。籨ecide決定。由句意可知此處選d。29 【答案與解析】a 考查狀語從句。由句意可知所填詞引導時間狀語從句，引導詞意思是：當?shù)臅r候，選a。30 【答案與解析】b 考查副詞。carelessly粗心地；cautiously小心地，謹慎地；hopelessly無望地；unwillingly不愿意地。句意是：她打開門，小心地走了進去。選b。31 【答案與解析】c 考查名詞。根據(jù)前文中woods可知此處選c。32 【答案與解析】a 考查名詞。根據(jù)后文中的the little stream可知此處選a。33 【答案與解析】b 考查動詞。句意是: laddy意識到女主人有危險。所填詞意思是：意

10、識到，感覺到，選b。34 【答案與解析】b 考查介詞。根據(jù)freaking the window可以推斷出所填介詞意思是：穿過，選b。35 【答案與解析】d 考查形容詞。句意是：然而，當它低頭聞時，地面上散發(fā)出一種熟悉的氣味。選d。36 【答案與解析】c 考查動詞。miss失去；discover發(fā)現(xiàn)；follow跟隨；ignore忽略。句意是：它跟隨這種氣味，穿過了草地。選c。37 【答案與解析】b 考查副詞。calmly平靜地；loudly大聲地；merrily歡樂地；gently溫柔地。句意是：向空中大聲的吠叫，。選b。38 【答案與解析】a 考查動詞。search尋找；wander徘徊；

11、look看，瞧；travel旅行。由句意可知此處選a。39 【答案與解析】c 考查名詞。根據(jù)前文的提到的名詞house可知此處選c。40 【答案與解析】d 考查名詞。stisfaction 滿意，滿足；disappointment失望；embarrrasement尷尬；delight愉快，高興。所填詞構(gòu)成固定短語，根據(jù)后文可知其意思是：使他高興的是，選d。41 【答案與解析】a 考查動詞。jump跳；climb爬；walk走，步行；fly飛。根據(jù)句意選a。42 【答案與解析】d 考查形容詞。根據(jù)第二自然段最后一句中的fall asleep可知此處選d。43 【答案與解析】d 考查動詞。spot

12、 玷污； 認出，發(fā)現(xiàn)；watch觀看；observe觀察；see看見。由句意可知此處所填詞意思是：看見，選d。44 【答案與解析】c 考查動詞。disturb打擾；comfort使舒適；rescue挽救；scare驚嚇。句意是：laddy，是你救了我。選c。45 【答案與解析】d 考查名詞。pain 痛；shock震驚；sorrow難過，悲傷；relief解脫。句意是：看到他們的女兒得救另外，父母激動地留下了激動的淚水，他們?nèi)玑屩刎摿?。選d。閱讀理解a c32012陜西卷【要點綜述】一項最新的調(diào)查表明：使得一個民族更有凝聚力的因素很多，但最主要是相同的價值取向。46 【答案與解析】b 事實細節(jié)

13、題。根據(jù)第一自然段中的in our latest poll, seven out of 16 countries chose values as the greatest factor bringing a nation together. 選b。47 【答案與解析】a 事實細節(jié)題。由do you speak canadian?中的第一句可知本題選a。48 【答案與解析】d 推理判斷題。根據(jù)圖表可以看出india對于價值取向和語言的意思看到一樣重要，故本題選d。b c22012陜西卷【要點綜述】母親回娘家去照顧外婆了，留下父親照看三個淘氣的小家伙，此時，家里的一切都亂套了49 【答案與解析】c

14、 推理判斷題。根據(jù)第一自然段的第二句可知本題選c。50 【答案與解析】b 事實細節(jié)題。根據(jù)第四自然段的倒數(shù)第二句可知本題選b。51 【答案與解析】c 推理判斷題。通讀全文可知brad打電話給日托所的原因是他照顧不了三個淘氣的小家伙，選c。52 【答案與解析】d 篇章結(jié)構(gòu)題。通讀本文可知本文是按時間順序進行描述的，故選d。c c8 2012陜西卷【要點綜述】眾所周知，攝入過多脂肪，缺乏鍛煉以及長期吸煙會增加患心臟病的風險，但最新的研究表明，另外一項我們平時不注意的東西更使我們患心臟病的風險大大增加，那就是我們所呼吸的空氣。53 【答案與解析】a 主旨大意題。根據(jù)本文主題句第一自然段的最后一句可知

15、本文大意是說明空氣質(zhì)量和心臟病發(fā)病率之間的關系，選a。54 【答案與解析】c 詞義猜測題。modest原意是：謙虛的，溫和的，由此可以推斷出本文中其意思是：相對較低的，選c。55 【答案與解析】d 事實細節(jié)題。根據(jù)最后一句可知本題選d。56 【答案與解析】a 寫作意圖題。本文是一篇說明文，主要意思是說明人們所呼吸的空氣和心臟病的發(fā)病率之間的關系，由此可知作者的寫作目的是告知人們一個事實，故本題選a。d c72012陜西卷【要點綜述】又是一年畢業(yè)季，很多大學畢業(yè)生又要開始為尋找一份可以乃以生存的工作而奔忙了，但是，影響就業(yè)成功的因素很多，其中有一點就是面試時的著裝。57 【答案與解析】c 推理判

16、斷題。根據(jù)第二自然段的首句可知作者的意思是有紋身或戴鼻環(huán)去面試不會被公平的對待，故本題選c。58 【答案與解析】b 推理判斷題。通讀第三自然段可知本文作者的意思是：員工的穿著不再是員工的私人問題，而是影響到公司的聲譽和發(fā)展的大問題。選b。59 【答案與解析】c 主旨大意題。本文大意是關于員工的著裝問題，即員工的外貌問題，故本題選c。60 【答案與解析】b 作者意圖題。根據(jù)本文后兩個自然段可知作者對于員工著奇裝異服的態(tài)度也是否定的，故選b。第二節(jié) p32012陜西卷【要點綜述】本文是一篇說明文，作者就如何在公眾場合作報告提出了一些實用的建議。61 【答案與解析】e。根據(jù)本段最后兩句可知本段大意選

17、e。ks5u62 【答案與解析】c。由本段主題句最后一句可知本段大意是：不要前后矛盾，選c。63 【答案與解析】a。根據(jù)最后一句中的organize可以推斷出本段大意選a。64 【答案與解析】f。通讀本段可知其大意是：不要頻繁使用那些令人感到不安的詞綴或發(fā)音，選f。65 【答案與解析】d。根據(jù)首句中的end一次可以推斷出本段大意選d。單詞拼寫 p42012陜西卷ks5u66. 【答案與解析】pure。修飾名詞，無比較之意，用形容詞原形。67. 【答案與解析】afford。與to構(gòu)成動詞不定時，用動詞原形。68. 【答案與解析】tuesday。意思是星期二，專有名詞，首字母大寫。69. 【答案與

18、解析】serious。修飾名詞expression，無比較之意，用形容詞原形。70. 【答案與解析】progress。做介詞的賓語，是不可數(shù)名詞。71. 【答案與解析】artist。由形容詞local修飾，做動詞allow的賓語，用可數(shù)名詞單數(shù)。72. 【答案與解析】promised。做謂語，根據(jù)從句謂語動詞would come可知用一般過去式，故動詞用過去式。73. 【答案與解析】approach。與to構(gòu)成動詞不定式，用動詞原形。74. 【答案與解析】imagining。與be動詞構(gòu)成進行時態(tài)，故動詞用v-ing形式。75. 【答案與解析】confidently。修飾動詞walk，用副詞，

19、無比較之意，用副詞原形。短文改錯 e12012陜西卷visit-visited【答案與解析】根據(jù)時間狀語last month可知本句時態(tài)是一般過去時，故動詞用過去式。ks5ubut-so/and【答案與解析】前后文是順延或因果關系，故連詞用and或so。to去掉【答案與解析】anywhere是指地點的副詞，其前不用介詞。comfortably-confortable【答案與解析】修飾名詞room，應用形容詞。were-was【答案與解析】what引導的主語從句做主語，其意思是單數(shù)，故系動詞were改為was。ks5ufor with【答案與解析】動詞share常與介詞with構(gòu)成搭配，意思是：

20、和某人分享。taking-taken【答案與解析】非謂語動詞作后置定語，與所修飾詞是被動關系，故用過去分詞。dish-dishes【答案與解析】由several修飾，名詞應用復數(shù)。such great-a【答案與解析】hotel是可數(shù)名詞單數(shù)，第一次提到，前需加不定冠詞。me-mine【答案與解析】雙重所有格的構(gòu)成是of +名詞性物主代詞或名詞所有格。書面表達f12012陜西卷 ks5u【思路點撥】本題是一篇材料作文，也是看圖作文，材料和圖形比較簡單，考生應不難理解寫作要求和寫作目的，但文章首句已經(jīng)給出，要求考生續(xù)寫，這增加了本題的難度和區(qū)分度?？忌攸c要先仔細審題，審題主要包括以下幾個方面：

21、（1）主體時態(tài)；（2）主體人稱；（3）內(nèi)容要點。尤其是對于內(nèi)容要點的把握要準確到位。再者考生需注意盡可能使句子表達形式的多樣，盡量使用一些較復雜的句式結(jié)構(gòu)和較高級的詞匯，以提高書面表達的檔次和可讀性。v ks5u英 語第一部分:英語知識運用（共四節(jié),滿分55分） 第一節(jié) 語音知識(共5小題;每小題1分,滿分5分)從每小題的a、b、c、d四個選項中,找出其劃線部分與所給單詞的劃線部分讀音相同的選項，并在答題卡上將該選項涂黑。1. regarda. design b. gentle c. college d. forget2. refusea. discuss b. rudec. focusd.

22、excuse3. chargea. toothache b. machinec searchd. christian4.fielda. quiet b. piecec. friendd. experience5.tapesa. potatoes b. speechesc. cakesd. bridges第二節(jié) 情景對話(共5小題;每小題1分，滿分5分)根據(jù)對話情景和內(nèi)容，從對話后所給的選項中選出能填人每一空白處的最佳選項，并在 答題卡上將該選項涂黑。選項中有兩個為多余選項。repairman: good afternoon. 6 customer: hello. my mobile phone

23、 isnt working. could you repair, pleaserepairman: 7 customer: it worked well yesterday, but i simply couldnt tum it on this morning.repairman: 8 customer: here you are.repairman: well，i think we，11 be able to fix it. you can pick it up this friday.customer: oh, no. thats too long. 9 i need it as soo

24、n as possible.repairman: 10 what time?customer: let me see. how about wednesday afternoon?repairman: after five oclockcustomer: ok. thank you.a. thats great. b. i beg your pardon?c. let me have a look. d. whats the problem?e. pm sorry to hear that. f. what can i do for you?g. i wonder if you could f

25、ix it earlier. 第三節(jié) 語法和詞匯知識（共15小題；每小題1分，滿分15分）從每小題的、四個選項中，選出可以填入空白處的最佳選項，并填在答題卡上將該選項涂黑。11an agreement seems to be impossible because the majority of the committee members are _ it.a . against b. for c .to d. with12.the basketball coach, as well as his team , _interviewed shortly after the match for t

26、heir outstanding performance.a. were b. was c. is d. are13. no matter where he is, he makes _a rule to go for a walk before breakfast.a. him b this c. that d. it 14. it is the third time that she has won the race, _ has surprised us all.a. that b. wherec.whichd. what15._ in a long queue, we waited f

27、or the store to open to buy a new ipad .a. standing b. to stand c. stoodd. stand16.im sorry for being late. i should have phoned you earlier.-_. ive just arrived.a. thats no trouble b. you are welcomec. thats all rightd. you can never tell17. if may car _more reliable, i would have driven to lhasa i

28、nstead of flying last summer.a. was b. had beenc. should be d. would be18. hot _the night air was, we slept deeply because we were so tired after the long journey.a. althoughb. as c. while d. however19. he had to pause from time to time to wipe the sweat from his forehead, because the air-conditioni

29、ng system _.a. broke in b. broke up c. broke out d. broke down20. as many five courses are provided, and you are free to choose _ suits you best.a whateverb. whichever c. wheneverd. wherever21.the trip shouldnt take more than an hour. _.tt is at least two hours. a. i guess so b. thats itc. you must

30、be joking d. it depeds22.if he takes on this work, he will have no choice but _ an even greater challenge.a. meets b. meeting c. meet d. to meet23.i_ thank you too much for all your help to my son while we were away from home. a. wont b. cant c. can d. will 24.can i call you back at two oclock this

31、afternoon? im sorry, but by then i_ to beijing. how about five?a. fly b. will fly c. will be flying d. am flying 25. all the photographs in this book, _ stated otherwise, date from the 1950s.a. unless b. until c. once d. if第四節(jié) 完形填空（共20小題；每小題1.5分，滿分30分）閱讀下面短文，從短文后各題的a、b、c、d四個選項中，選出適合填入對應空白處的最佳選項，并在答題

32、卡上將該選項涂黑。one sunny afternoon, a seven-year-old girl went for a walk. she crossed a large area of grassland into the woods _26_ she realized that she was lost.sitting on a rock and _27_ what to do, she began crying. after a while. she_28_ to walk along a wide path lined with tall trees and thick bush

33、es. _29_ it was getting dark, she saw a small, dark wooden house. she opened the door and _30_ stepped in. suddenly, she heard a strange noise, and she ran out the door and back to the _31_. cold and tired, she fell asleep near a _32_.the girls parents were out and her dog, laddy, was at home. laddy

34、 _33_ that his mistrees（女主人）was in danger. he jumped _34_ a window, breaking the glass. he looked in the fields. but he couldnt find his mistress anywhere. however, from the ground came a _35_ scent (氣味) as he lowered his head. he _36_ the scent and walked across the grassland. barking _37_ into the

35、 air, the dog _38_ through the woods until he found the _39_ . but the girl was not there, so he headed back to the woods. much to his _40_ , he saw his mistress blue shirt in the distance. he _41_ over some bushes and saw the little stream, where the girl was _42_.when she opened her eyes and 43 he

36、r dog standing beside her, the girl said, “you 44 me, laddy,” and she kissed him several times. seeing their daughter and dog coming back, the parents burst into tears of 45 . that night laddy had a herors supper: a huge meal of steak26. a. before b. sincec. while d. as27. a. wondering b. forgetting

37、c. rememberingd. regretting28. a. preferred b. expected c. failedd. decided29. a. when b. until c. if d. because30. a. carelessly b. cautiously c. hopelesslyd. unwillingly31. a. treesb. bushesc. woods d. grasses32. a. streamb. rockc. treed. house33. a. foundb. sensedc. heard d. smelt34. a. atb. thro

38、ugh c. ind. onto35. a. terrible b. strangec. pleasant d. familiar36. a. missedb. discoveredc. followed d. ignored37. a. calmlyb. loudly c. merrily d. gently38. a. searchedb. wandered c. lookedd. travelled39. a.windowb. girl c. house d. hero40. a. satisfactionb. disappointment c. embarrassment d. del

39、ight41. a. jumped b. climbed c. walked d. flew42. a. awake b. abandoned c. available d. asleep43. a. spotted b. watched c. observed d. saw44. a. disturbed b. comforted c. rescued d. scared45. a. painb. shock c. sorrowd. relief 第二部分：閱讀理解（共兩節(jié)，滿分40分）第一節(jié)（共15小題；毎小題2分，滿分30分）閱讀下列四篇短文，從每小題后所給的a、b、c、d四個選項中，選

40、出最佳選項，并在答題卡上將該選項涂黑。awhat brings a nation together? of the four choices shared values, language, history, and religion, its shared values. in our latest poll (民意調(diào)査), seven out of 16 countries chose values as the greatest factor (因索）bringing a nation together, and six preferred language. both choices

41、scored high in the poll, suggesting that our values and how we express them are closely linked still, history was not forgotten in some countries, particularly in mexico and russia. even canada and the united states chose national histories as the second-most important factor uniting their people. t

42、he biggest surprise? not one country picked religion as its top choice. respect your eldersin most countries, the oldest generation considered values more important to a nation than did those who are under 45 years old.do you speak canadian?language scored lower in canada than in all other countries

43、 polled, perhaps because the country speaks two official languages, french and english.church and statemost people polled do not connect their religious beliefs to their national pride. religion ranked last in 13 countries with france scoring it at 1%, the lowest of all.46. according to the poll, wh

44、at was the most important factor in bringing a nation together? a. language. b. values. c. history. d. religion.47.in which country did language score the lowest in their national pride? a. canada. b. mexico. c. france. d. america.48.according to the charts, shared values and language were considere

45、d equally important in . a. australia b. brazil c. china d. indiabthree boys and a dadbrad closed the door slowly as sue left home to visit her mother. expecting a whole day to relax, he was thinking whether to read the newspaper or watch his favourite tv talk show on his first day off in months. “t

46、his will be like a walk in the park,” hed told his wife. “ill look after the kids, and you can go visit your mom.”things started well, but just after eight oclock, his three little “good kids”mike, randy, and alexcame down the stairs in their night clothes and shouted “breakfast, daddy.” when food h

47、ad not appeared within thirty seconds, randy began using his spoon on alexs head as if it were a drum. alex started to shout loudly in time to the beat（節(jié)拍）. mike chanted “wheres my toast, wheres my toast” in the background. brad realized his newspaper would have to wait for a few seconds.life became

48、 worse after breakfast. mike wore randys underwear on his head. randy locked himself in the bathroom, while alex shouted again because he was going to wet his pants. nobody could find clean socks, although they were before their very eyes. someone named “not me” had spilled a whole glass of orange j

49、uice into the basket of clean clothes. brad knew the talk show had already started.by ten oclock, things were out of control. alex was wondering why the fish in the jar refused his bread and butter. mike was trying to show off his talent by decorating the kitchen wall with his colour pencils. randy,

50、 thankfully, appeared to be reading quietly in the family room，but closer examination showed that he was eating apple jam straight from the bottle with his hands. brad realised that the talk show was over and reading would be impossible.at exactly 11:17, brad called the daycare centre (日托所）.“i sudde

51、nly have to go into work and my wifes away. can i bring the boys over in a few minutes?” the answer was obviously “yes” because brad was smiling.49. when his wife left home. brad expected to .a. go out for a walk in the park b. watch tv talk show with his childrenc. enjoy his first day off work d. r

52、ead the newspaper to his children50. which of the following did randy do? a. drawing on the wall b. eating apple jamc. feeding the fish. d. reading in a room51.why did brad ask the daycare centre for help?a. because he wanted to clean up his house.b. because he suddenly had to go to his officec. bec

53、ause he found it hard to manage his boys home.d. because he had to take his wife back52. this text is developed .a. by space b. by comparison c. by process d. by timeceating too much fatty food, exercising too little and smoking can raise your future risk of heart disease. but there is another facto

54、r that can cause your heart problems more immediately: the air you breathe.previous studies have linked high exposure (暴露）to environmental pollution to an increased risk of heart problem, but two analyses now show that poor air quality can lead to heart attack or stroke (中風）within as little as a few

55、 hours after exposure. in one review of the research, scientists found that people exposed to high levels of pollutants (污染物）were up to 5% more likely to suffer a heart attack within days of exposure than those with lower exposure. a separate study of stroke patients showed that even air that the u. s. environmental protection