上海市致遠高級中學2020-2021學年高二下學期5月階段評估英語試題含解析

1、致遠高中2020學年第二學期5月階段評估高二英語LListening ComprehensionSection A Short ConversationsDirections:】!！ Section Agyou will hear ten short conversations between two speakers.At the end of each conversation, a question will be asked about what was said. The conversations and the questions will be spoken only once

2、.After you hear a conversation and the question about it,read the four possible answers on your paper,and decide which one is the best answer to the question you have heard.A.5115.B.6:15.C.7:15.D.8:15.A.There is no need to review the letter agam.She hasnt got any tune to go over the letter.C.Ifs vei

3、y miportaiit to leain the letter by heaits.D.The man should spare some time to revise the letter.A.He missed the Super Bowl.C.He disliked the Super Bowl.A.She lost her money.C.She asked for a uew textbook.B.He watched die Super BowlD.He would see the Super Bowl agam.B.She bought a wrong book.D.She f

4、ound die last edition of the book.5.A.She eiyoyed the movie very much.B.The mail should have told her about the movie.C.The mail didnt know what the movie was about.D.She didnt sleep well last night because of tlie movie.A.A holiday.B.Luck.A.Go on smoking.C.Cairy on with exercise.A.Boss and shop ass

5、istantC.Internewer and interviewee.A.Stay up late toiught.C. Listen more carefiilly in class.C.Woik. D.Health conditions.B.Talk witli the doctor.D.Have a physical examination.B.House agent and client.D.Manager and customer.B.Get more sleep at night.D.Impiove her grades giaduallylO.A.The man only fil

6、led his tank half fiill B.The car is breaking down on the wav. JJC.The mail cant read the mstiumentD.The car has run out of gasoline.Section BDirections: In Section B,you will hear two short passages and one longer conversation.and you will be asked several questions on each of the passages and the

7、conversation.The passages and the conversation will be read twice,but the questions will be spoken only once.VVhen you hear a question,read the four possible answers on your paper and decide which one would be the best answer to the question you have heard.Questions 11 through 13 are based on the fo

8、llowing passage,ll.A.They are not as serious as expected. B.They are often ignored by the public.C.They liave been generally accepted.A.Dog owners used to go dieie.C.Children used to play there.A.Allowing the plaiitmg of trees.C.Building nests fbr buds.D.They have been dealt with properlyB. People u

9、sed to leave lubbish tlieicD. Residents used to suffer from it.B.Protecting it from visitors.D.Lettmg it go wild.Questions 14 through 16 are based on the following passageB.A radio programme.A.The National Museum.C. Artis tic events.D. Interviews with artists.A.The exlubits are made by student artis

10、ts. JBit is mtended fbr fiiial-yeai ait students.C.K is held m a famous museum in London.D.The exlubits aie made from lecycled materials. J.A.There are 200 exlubits m total.B.It remauis open until 7:30 every night.C.Theie is no entrance fee fbi student visitors.D.It shows the application of teclmolo

11、gy in art.Questions 17 through 20 are based on the following conversation.17.Alt was difficult to get used to the instructions.B.She had contacted the TV company earlier.C.Slie had long been looknig fbnvaid to it.D. Her previous experience was usehil.IS.A.She knew that Maddy had talent.BShe saw that

12、 Maddy liked an audience.C.She wanted Maddy to practice more.D.She woudeied whethei Maddy loved it.19.A.Seemg herself on TV.B.Going to shops alone.C.Readmg about herself.D.Being recognised by tlie public.20.A.You should tiy and ignore it.B.Ydu should accept its drawbacksC.Ydu should eiijoy it while

13、it lasts.D.Ydu should ucasuic it as it may disappeai.LGrammar and VocabularySection ADirections:After reading the passage below,fill in the blanks to make tlie passage coherent and graiimiatically correct.For the blanks with a given word,fill in each blank with the proper form of tlie given word;fbi

14、 the other blanks.use one word that best fits each blank.Be Careful on the InternetPaients of boys at a Sydney private school liave been urged to monitor then sons* use of social networkuig websitejvith a waiiuiig any mistakes made in teenage years could be peimaiiently recoided on the Internet and

15、catch up with them later in life.The headmastei,Timothy Wnght.wrote to parents on Thursday,2 (explam)tliat younger boys were toommianire to fully understand the possible consequences of disclosmg private information on social networkuig sites. Wb now know that those parts of the brain 3 deal with de

16、cision-niaking are still developmg in a man in his 20s.lie said. (But mistakes4 (conimit)at fifteen may be still accessible to ail employer ten yeais later.Modem teclmology means that a careless word, an ill-willed comment or an inappropriate photograph, are on permanent record and freely available

17、to 5 has access. Stupidities that 6 (forget) immediately before now last, spread and damage in ways unknown before tlus decade.Dr Wright said tliatwords spoken in the playground could be more easily forgotten, tliose capturedon the Liternet 01 on mobile phone text messages could have far more lastin

18、g and more huitfiil consequences.He urged parents to set ground mles tor use of mobile phones and the Internet and in particular to set boundaries on taking and sending ullages that 8 be used to bully(新凌)others. Parents who are payuig for the hitemetsendee have an unquestionable right 9(insist) they

19、 aie a fiiend on social networkuig websites.I wouldcertainly insist on this 10 at least the end of 16 if not later.rhe wrote.【答案】Lthatexplanungthat#whichcommittedwhoever 6. were forgottenthough#althougli#xvlulemay 9. to insist10.【解析】【分析】本文是說明文。文章講述了悉尼一所私立學校的男孩的父母被敦促監(jiān)控兒子使用社交網(wǎng)站的情況。 校長認為十幾歲時犯的任何錯誤都可以永久

20、記錄在互聯(lián)網(wǎng)上，井在以后的生活中最終嘗到苦果，并分析了 原因。【1題詳解】考查名詞性從句。句意：悉尼一所私立學校的男孩的父母被敦促監(jiān)控兒子使用社交網(wǎng)站的情況，并警告說, 十幾歲時犯的任何錯誤可以永久記錄在互聯(lián)網(wǎng)上，并在以后的生活中最終嘗到苦果。分析句子可知，4anv mistakes made in teenage years could be permanently lecorded on the Iiiteinet and catch up with them later in life. 0 為同位語從句，解釋說明a warning,從句句意完整，成分齊全，連詞d向引導同位語從句，無詞義

21、，不作 成分，僅起引導作用，故填that?！?題詳解】考查非謂語動詞。句意：校長蒂莫西賴特周四寫信給家長，解釋說，年幼的男孩太不成熟，無法完全理解 在社交網(wǎng)站上披露私人信息可能造成的后果。分析句子可知，句子謂語動詞是wrote,故explain用非謂語 動詞形式作狀語，expkrni 9邏輯主語The headmastet是主動關系，用現(xiàn)在分詞，故填explaining?！?題詳解】考查定語從句。句意：我們現(xiàn)在知道，對于一個20多歲的男性，大腦中處理決策的那些部分仍在發(fā)展中。 分析句子可知，空格處引導定語從句，修飾pans,從句中缺少主語，指物，用關系代詞that或者which,故 填 tha

22、t winch o【4題詳解】考代非謂語動詞。句意：但是十五歲犯的錯誤十年后雇主可能仍然可以知道。分析句子可知，句子謂語動 詞是may be accessible,故commit用非謂語動詞形式作定語，commit與mistakes是被動關系，故用過去分 詞作定語，故填committed。【5題詳解】考查賓語從句。句意：現(xiàn)代技術意味著，一句粗心的話、一個惡意的評論或一張不恰當?shù)恼掌急挥谰糜?錄下來，任何可以訪問的人都可以免費使用。分析句子可知，空格處引導賓語從句，作介詞t。的賓語，根 據(jù)句意，whoever “無論誰”符合句意，引導賓語從句，從句中作主語，故填whoever【6題詳解】考查動

23、詞時態(tài)語態(tài)。句意：以前馬上被遺忘的愚蠢現(xiàn)在以一種十年前未知的方式持續(xù)，傳播并且破壞。分 析句子可知,that引導定語從句，修飾stupidities,由時間副詞befbre可知,用一般過去時,that在從句中作 主語，指代先行詞sapidities,是或數(shù),與謂語動詞forget是被動關系，故填were forgotten?！?題詳解】考查連聞。句意：賴特博士說，盡管在操場上說的話可能更容易被遺忘，那些在互聯(lián)網(wǎng)或手機上捕捉到的 短信可能會產(chǎn)生更持久、更傷人的后果。that引導賓語從句，從句中是兩個句子，故空格處是連詞，根據(jù)句 意，用though或者althougli以及while引導的讓步狀語

24、從句符合語境。故填though although/while?！?題詳解】考杳情態(tài)動詞：句意：他敦促父母們?yōu)槭謾C和互聯(lián)網(wǎng)的使用制定基本規(guī)則，特別是為拍攝和發(fā)送圖片設置 界限，那些可能會被用來武凌其他人。分析句子可知，that引導定語從句，修飾先行詞images,從句中that 作主語，指代images, images與use是被動關系，故be used是被動語態(tài)，根據(jù)句意，空格處用情態(tài)動詞may 表示M能性，故填may?！?題詳解】考查不定式c句意：為互聯(lián)網(wǎng)服務付費的父母亳無疑問有權堅持認為在社交網(wǎng)站上他們是朋友。right to do sth. “做某事的權利，口ght后接不定式作定語，結合

25、句意，故填touisist?！?0題詳解】考查介詞。句意：我當然堅持這一點直到至少16歲末，如果不是更晚。根據(jù)上文提到的“mteenageyeais” 和“ten years Het.”可推斷，此處說的是直到16歲末或者更晚這些上網(wǎng)記錄會對青少年造成不好的結果之 前，作者會堅持這一點。until或者till符合句意，故填untiLuntil。Section BDirections:Complete the fbllowmg sentences by usmg the propel form of the words or expressions given in the frame.Each

26、one can only be used once.A. capable B. effectiveness C. employingD.exposureE.famouslyF. joiningG lunitation H. minimal I.precisely J.iecogmzing KwortliwhileClean Air ActThe air in modem homes and offices is pretty clean,but not as clean as it might be.Often it contains small amounts of volatile（揮發(fā)性

27、的）,poisonous,oigamc compouiids.Long-teim=ll= to these is a bad tluiig.so clearing them out of the air people breathe is widely accepted as 2Findmg an effective way to do so has proved difficult.But Stuart Strand Long Zhang and Ryan Routsong, of tlie Umveisity of Washington,in Seattlejlnnk they have

28、succeeded,As they report in Envuomnental Science and Teclinology. thea method mvolves 13 a gene from a rabbit into a popular mdoor plant nicknamed DeviFs vinea type of ivy hat is so called because it is 14 difficult to kill.The idea of 15 plants to de- pollute the atmospheie inside bmldmgs has been

29、aiound for decades-but has met with only qualified success. One expemnent involvmg uiunodified spider plants.fbr example,showed that they arc indeed 16 of removing fbmialdliyde （甲 醛）fiom die au.Theis that to make much ofa difference in a space as large as a house would requue turning most of the roo

30、ms mto spider-plant forests.Di Strand, Dr Zhang and Mi Routsong thus sought sometlung suitably transgeiuc （轉基 因 的）,but tliat does not flower mdoois. The plant they settled on was Devils vine,8because of its touglmess.With the help ofa bactenumjhey were able to ferry the rabbit version of the gene in

31、to the plants chromosomes（染色 體）.and thus to,engineer a type of Devils vine able to produce an aH-cleaning substance. To test the 9 of their idea, the researchers put their modified ivy to work mside greeiiliouses filled with air containmg high levels of harmful substaiices.The plants peiibnned wellj

32、educing the haimfiil substances in au to _20_.【答案】11.D 12. K TOC o 1-5 h z 13. F14.115. C16. A17. G18.E19. B20. H【解析】【分析】這是一篇說明文。現(xiàn)代家庭和辦公室里的空氣相當干凈，但并沒有想象中那么干凈。它通常含有 少量的揮發(fā)性、有毒的有機化合物。長期接觸這些有害物質是有害健康的。研究人員將他們改造過的常春 藤放在充滿有害物質的空氣的溫室里。這些植物表現(xiàn)良好，將空包中的有害物質減少到最低限度?！?1題詳解】考查名詞。句意：長期接觸這些有害物質是件壞事，所以將它們從人們呼吸的空氣中清除

33、出去被廣泛認為 是 ffl 得的。Long-term 為形容詞后接名詞，根據(jù)Otten it contams small amounts of volatile（揮發(fā)性 的），poisonous,orgamc compounds.” 可知，空處填名詞 exposure “暴露”。故選 D 項?！?2題詳解】考查形容詞。句意：長期接觸這些有害物質是件壞事，所以將它們從人們呼吸的空氣中清除出去被廣泛認 為是值得的, woithwhile ”值得的”符合句意。故選K項。【13題詳解】考查動詞。句意：但是西雅圖華盛頓大學的Stuart Strand、龍張和Ryan Routsong認為他們已經(jīng)成功了,

34、正 如他們在環(huán)境科學和技術方面的報道一樣。他們的方法是將兔子的一個基因與一種很受歡迎的室內植物 一一魔鬼藤種常春藤帽子一一連接起來，因為它很難殺死。involve doing sth ”涉及做某事”，根據(jù)“ into a populai indoor plain nicknamed ”可知，空處填動名詞 jouirng ”聯(lián)系，連接”故選 F 項?！?4題詳解】考查副詞。句意：但是西雅圖華盛頓大學的斯圖爾特斯特蘭德，龍張和瑞安勞特松認為他們已 經(jīng)成功了，正如他們在環(huán)境科學和技術方面的報告中所說，他們的方法是將兔子的基因與一種流行的室內 植物結合，這種植物被稱為魔鬼藤種常春藤帽子之所以這么叫是因

35、為它很難被殺死。據(jù)DeviFsvine”可知，空處填precisely （用以加強同意的語氣）的確如此”。故選I項。【15題詳解】考查動名詞。句意：使用植物去除建筑物內空氣污染的想法己經(jīng)存在了幾十年，但只取得了有限的成功。 of 后接動名詞，根據(jù) * o de- pollute the atmosphere inside buildings , 可知，emlpoy ”利用，使用”符合句意。 故選C項?！?6題詳解】考查形容詞。句意：例如，一項涉及未經(jīng)改良的蜘蛛植物的實驗表明，它們確實能夠從空氣中去除甲醛。are后接形容詞，capable 能夠的”符合句意。故選A項?！?7題詳解】考查名詞。句意

36、：其局限性在于，要想在一個像房子一樣大的空間里發(fā)揮很大的作用，就需要把大部分房 間變成蜘蛛植物的森林。The后接名詞做主語。根據(jù)to make much of a difference in a space as large as a house would requne turning most of the rooms mto spider-plaut forests.M nf 知，指局限性。故選 G 項?！?8題詳解】考查副詞。句意：他們選定的植物是魔鬼藤，因其韌性而聞名。副詞作狀語，根據(jù)because of its toughness” 可知，魔鬼藤因其韌性而聞名。famously “

37、有名地”。故選E項?！?9題詳解】考查名詞。句意：為了測試他們的想法的行效性，研窕人員將他們改造過的常春藤放在充滿有害物質的空 ,I的溫室里 c test 后接名詞作賓語，根據(jù) * the researchers put their modified ivy to work inside gieenliouses tilled witli au containing high levels of liaiinful substances. ” 可知，effectiveness 44 有效性”符合句意。故選 B 項。20題詳解】考查形容詞c句意：這些植物表現(xiàn)良好，將空氣中的有害物質減少到最低限度

38、。根據(jù)The plants performed well nf知，minimal “最低限度的”符合句意。故選H項。IILReading Comprehension Section ADirections:For each blank in the following passage there are four words or phrases marked A,B,C and D.Fill in each blank with the word or phrase that best fits the context.Many scientists now believe that dea

39、th is not biologically inevitable and could be avoided if there were cures for all life-tlueatenmg diseases.However,perhaps the real question is not whether eternal（永 恒的）life will one day be possible,but whetlier the itself is misdirected. In his short story,The Iimnortaljlie Argentinean writer Jorg

40、e Luis Borges wiites of a man who goes in search of a liver which lids people of22 The people there witheternal life,he finds,are 23 and apparently nuserable.Suice they will live fbr an unrestricted number of yeais,they reason tliat everything that can liappen to them will do at some pomt. 24 they c

41、an liaidly brrngthemselves to move.Tins raises the question: wliat 25 would tliere be to do aiiytlung if we knew that we had an endless number of days ahead of us m which to accomplish all our goals?26, would oui lives have any meaiuiig atalPAs humans.we only seem able to understand our feelings whe

42、n they are balanced agarnst 27 emotions. When we feel happy； it is _28_ being sad; When we feel at peace,it is an escape from being aiixious.How then could we feel glad to be alive,to eiijoy oui existence day to day; if there was no possibility that it might one day be29 us? All our emotions would b

43、ecome inmiatenal.And what about die fiustiations of our memones which often 30 us, even m the short lives we cunently have? It is frustrating enough to 31 that we have forgotten tluiigs wluch happened ten,twenty or thirty yeai s ago. Iiiiagme then （lie frustration of hundreds of years worth of memon

44、es slippmg away from us as we diift tluough the centuiies-constantly 32 wheie we have been and what we have done.There would be other problems too.Unless we began to explore spacejhe Earth would soon be burdened with too many people and some sort of limit on die number of childien we can have might

45、be33 - Peihaps wemight only be allowed to reproduce if we undenook to die ourselves at some future point.Given all this, it seems that longer life nught come at a 31 much heavier than many of us are willmg to pay.For most of us alive todayxtexnal life may never be an issuebut fbi those who aie at th

46、e start of their lives, or yet to be 35 it is a decision they may well have to face, and much sooner than any of us nught havemiagmed.A. lifeB. pursuitC. approachD. evidence22. A. deathB. wealthC. sufferingD. liappiness23. A. diligentB. unhealthyC. inactiveD. lelaxed24. A. In contrastB. In additionC

47、. After allD. As a result25. A. motivationB. courageC. propertyD. publicity26. A. HoweverB. SuangelyC. OtherwiseD. Indeed27. A. similarB. strongC. opposmgD. changmg28. A. ui contrast toB. m liaimony withC. ui line withD. in response to29. A. unposed onB. taken fromC. exposed toD. applied to30. A. li

48、mitB. companyC. failD. amaze31. A. publicizeB. acknowledgeC. foreseeD. command32. A. catching hold of B. keeping track ofC. losing sight ofD. coming up with33. A. unceitainB. extinctC. invisibleD. necessary34. A. timeB. distanceC. priceD. target35. A. desnedB. selectedC. treatedD. bom【答案】.B22. A 23.

49、 C 24. D 25. A 26. D 27. C28. A 29. B 30. C 31. B32. C 33. D 34. C 35. D【解析】【分析】本文是一篇議論文。主要討論如果生命變成永恒，那么會帶來哪些問題。【題詳解】考查名詞詞義辨析。句意：然而，也許真正的問題不是有一天水生是否有可能，而是這種追求本身是否被誤導了。A.life生活:B.pursuit 追求:C.approach方法;D.evidence 證據(jù)。由上文“Many scientists now believethat death is not biologically mevitable and could be

50、 avoided if there were curesfbr all life-tlireatening diseases.n （許多科學家們相信只要威脅生命的重大疾病都可以治療的話，死亡在生物學意義上不是不可避免的）可知，這是人類在追求的一個目標，故選B項。【22題詳解】考查名詞詞義辨析。句意：不朽的阿根廷作家喬爾赫路易斯博格思在書中寫到了一個人去尋找一條讓人長 生不老的河流。A. death 死亡；B. wealth 財富：C. suffering 痛苦：D. happiness 幸福。由上文“Manyscientists now believe that death is uot bi

51、ologically inevitable”（許多科學家現(xiàn)在認為死亡在生物學意義上不是不可避免 的）可知，在喬爾赫書中要寫的就是有關人長生不死的故任，故選A項?！?3題詳解】考杳形容詞詞義辨析。句意：他發(fā)現(xiàn)那里擁有永恒生命的人都不是很活躍，而且明顯很痛苦。A.dihgent勤 奮的；B. udiealthy 不健康的；C. mactive 不活躍的：D. relaxed 放松的。由 F 文“Since they will live for an umestiicted nunibei of years, tliey reason tliat everytlimg that can happen

52、 to them will do at some point, they can hardly bnng themselves to move”（因為他們可以活無數(shù)年，他們認為可能發(fā)生在他們身上的一切都會在某個 時間點發(fā)生，閃此他們很難讓自己行動起來）可知，生命永恒，就會沒有活力，故選C項。【24題詳解】考查短語詞義辨析。句意：因為他們可以活無數(shù)年，他們認為可能發(fā)生在他們身上的一切都會在某個時間 點發(fā)生，因此他們很難讓自己行動起來。A.發(fā)contrast相比之下:B. In addition此外:C.Afterall畢竟:D. As a result因此，結果。分析句子意思可知后文“hey c

53、an hardly bling themselves to move. （他們很難讓自己行 動起來）是前文的結果，故選D項?！?5題詳解】考查名詞詞義辨析。句意：這就提出了一個問題，如果我們知道自己還有無數(shù)的時間來完成我們所有的目 標，還會有什么動力去努力。A. motivation動力；B. courage勇（：C. pioperty財產(chǎn)；D. publicity宣傳。由 上文“Since they will live fbr an unrestricted number of years, they reason that everything tliat can happen to th

54、em will do at some point. As a result, they can hardly bring themselves to move. （因為他們可以活無數(shù)年，他們認 為可能發(fā)生在他們身上的一切都會在某個時間點發(fā)生，因此他們很難讓自己行動起來）可知生命永恒，會 讓人失去動力。故選A項?！?6題詳解】考查副詞詞義辨析。句意：我們的生活真的會有任何意義嗎？ A. However然而：B. Strangely奇怪地；C. Otherwise否則；D.Indeed實際上。結合句意分析,可知本句是在反問上文說的沒有動力，故選D項?！?7題詳解】考查形容詞詞義辨析。句意：作為人類

55、，似乎只有在相對立的情緒相平衡時，我們才能理解自己的情感。 A. similar 相似的；B. strong 強壯的；C. opposing 相反的：D. changing 變化的。由卜文“When we feel happy, it is in contrast to being sad; Wlien we feel at peace, it is an escape from being anxious.（當我們感覺快樂時，這是 在與悲傷做對比，當我們內心平靜時，這是一種逃避焦慮的方式）可知，是相互對立的情緒。故選C項?！?8題詳解】考查短語詞義辨析。句意：當我們感覺快樂時這是在與悲傷做對

56、比，當我們內心平靜時這是一種逃避焦慮 的方式。A. in contrast to 對比：B. m harmony witli 和諧;C. in line with 一致;D. m response to 回應。由上文 “As humaiis, we only seem able to understand our feelings when they are balanced against opposing emotions” （作 為人類，似乎只有在于相對立的情緒相平衡時，我們才能埋解自己的情感）可知是相反的，相對的，故選A 項?！?9題詳解】考查短語詞義辨析。句意：如果有一天這些不可能從

57、我們手里被拿走，那么我們怎么能高興地享受活著的 每,天呢。A. imposed 0、強力口于;B. taken from 拿走;C. exposed to 接觸；D. applied to 應用。由下文“All our emotions would become inunatenal （我們所有的情緒都會變得不重要）可知，說的是如果生命不會失去， 故選B項?！?0題詳解】考查動詞詞義辨析。句意：難么即使在如今我們短暫的生命中，也會有很多記憶被遺忘的那種沮喪呢？。A. limit 限制;B. company 公司：C. fail 沒有做至lj ： D. amaze 使驚奇。由卜文“It is f

58、rustrating enough to acknowledge that we have fb唔often things which happened ten, twenty or thirty years ago ”（承認我們忘記 了 十年、二十年或 者是三十年前發(fā)生的事，是有夠令人沮喪的）可知說的是記憶失效，故選C項。31題詳解】考查動詞詞義辨析。句意：承認我們忘記了十年、二十年或者是三十年前發(fā)生的事，是夠令人沮喪的。A. publicize 宣傳；B. acknowledge 承認；C. foresee 預知；D. command 要求。由上文“And what about the f

59、rustiatioiis of our memoiies which often fail us, even in the short lives we ciinently have?”（難么即使在如今我們短暫的生命 中也會有很多記憶被遺忘的那種沮喪呢？）可知，我們不得不承認遺忘是令人沮喪的。故選B項?！?2題詳解】考查短語詞義辨析。句意：然后想象一下，在幾百年來，我們不斷忘記我們去過哪里和我們做過什么，數(shù) 百年的記憶被我們忘記。A. catclung hold of抓住;B. keeping track of 解動態(tài);C. losing sight of 忘記:D. conuiig up w

60、ith 想至lj。由上文“It is frustratmg enough to acknowledge that we have forgotten tlmigs which happened ten, twenty or thirty years ago （承認我們忘記了十年、：十年或者是三十年前發(fā)生的事）可知，這些記憶會被 忘記，故選C項。【33題詳解】考查形容詞詞義辨析。句意：除非我們開始探索太空，否則地球上很快就會有大量的人II,而限制兒童的 數(shù)量就變得非常仃必要。A. uncemin不確定的：B. extinct滅絕的：C. invisible 看不見的：D. necessaiy必要