《【立體設(shè)計(jì)】高考英語 Unit5 Travelling abroad課件 新人教版選修7（全國(guó)課標(biāo)卷）》由會(huì)員分享，可在線閱讀，更多相關(guān)《【立體設(shè)計(jì)】高考英語 Unit5 Travelling abroad課件 新人教版選修7（全國(guó)課標(biāo)卷）（51頁(yè)珍藏版）》請(qǐng)?jiān)谘b配圖網(wǎng)上搜索。

1、高考總復(fù)習(xí)一輪用書立體設(shè)計(jì)走進(jìn)新課堂英英 語語選修7Unit5 Travelling abroad話題：1.National consciousness and international awareness(國(guó)家意識(shí)和國(guó)際意識(shí))2.Studying abroad(留學(xué))2.Travelling abroad(國(guó)外旅游）功能：1.Likes and dislikes(愛好與厭惡)2.Probability and improbability(可能與不可能)語法：Revise the Non-restrictive Attributive Clause(復(fù)習(xí)非限制性定語從句)重點(diǎn)單詞：visa,

2、queue，qualification，lecture,idiom，recommend，comfort，substitute，contradict，routine,optional,essay,draft，acknowledge，occupy，agent，abundant，govern，destination,apologize課程解讀課程解讀重點(diǎn)短語：adjust to，keep it up，fit in，get used to，as far as one is concerned，be occupied with,day in and day out,feel at home，out of

3、 the question,settle in課程解讀課程解讀重點(diǎn)句型1.It was the first time she had ever left her motherland.2.You have to get used to a whole new way of life,which can take up all your concentration in the beginning.3.I have been so occupied with work that I havent had time for social activities.4.It is a popular t

4、ourist destination as it is close to the famous Inca ruins of the city of Machu Picchu.課程解讀課程解讀要點(diǎn)一：重點(diǎn)單詞1.recommend vt.推薦；建議；介紹；勸告歸納拓展（1）recommend doing建議做recommend sb.to do建議某人做recommend sb. for.推薦某人擔(dān)任（某職位）recommend sth. for.推薦某物做某種用途recommend sth.to sb./sb.sth.向某人推薦/介紹recommend sb.as.推薦某人當(dāng)recommend

5、 that-clause.建議（2）recommendation n.推薦，介紹信知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)注意：recommend 后跟的賓語從句，以及它對(duì)應(yīng)的名詞后跟的表語從句、同位語從句，再加上它的過去分詞構(gòu)成的It is/was recommended that.結(jié)構(gòu)中謂語動(dòng)詞用 （should） do 形式。recommend作“勸告，建議”講時(shí)，后面通常接名詞、代詞或動(dòng)名詞作賓語，可以接不定式作賓語補(bǔ)足語，但不能接不定式作賓語。Wed recommend you to book your flight early.我們建議你早點(diǎn)預(yù)訂航班。The doctor may re

6、commend limiting the amount of fat in your diet.醫(yī)生可能會(huì)建議限制你飲食中的脂肪含量。知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)Can you recommend me a good lawyer？你能給我介紹一個(gè)好律師嗎？I recommend the book to all my students.我向我所有的學(xué)生推薦這本書。It is recommended that the machine （should） be checked every year.建議每年把機(jī)器檢修一次。知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)【鏈接訓(xùn)練】The old man

7、 should listen to the doctors recommendation that he_in bed.A.stayB.staysC.stayedD.staying【解析】recommendation后接同位語從句時(shí)，從句用虛擬語氣,謂語動(dòng)詞用（should）do形式?！敬鸢浮緼知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)I can_him to you for the job.He is a very good worker.A.suggestB.recommendC.adviseD.prompt【解析】句意為：我可以把他推薦給你做這份工作，他是一個(gè)很不錯(cuò)的工人。suggest 意為

8、“建議，建議某人干某事”，構(gòu)成短語suggest sb.doing sth.；advise 意為“勸告，勸某人干某事”，構(gòu)成短語advise sb.to do sth.; prompt 意為“促使，引起”?！敬鸢浮緽知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)2.substitute n.C代替者；替代品vt.用代替/替換vi.替代；取代；頂替歸納拓展（1）substitute for sb./sth.代替/取代某人/物substitute B with Asubstitute A for B用A代替B（2）as a substitute作為代替人/代用品a substitute for.的代替者（代

9、用品）be no substitute for 沒有那樣好；不如稱心知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)Home-made parts are being substituted for imported ones.國(guó)產(chǎn)零件正在取代進(jìn)口零件。Fish can be substituted with meat in this recipe.做這道菜可用肉代替魚。Nothing can substitute for the advice your doctor is able to give you.大夫所能給你的忠告是無可替代的。His father only saw him as a subs

10、titute for his dead brother.他的父親只是把他當(dāng)作他死去的哥哥來看待。知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)同類辨析replace與substitute兩者都有“代替”的意思。但用法又有不同：（1）replace多指以新?lián)Q舊、以好換壞，常與介詞with連用（通常用take the place of更通俗些）。（2）substitute多指“暫時(shí)代替或代理”的意思，常與介詞for連用。（3）在句型結(jié)構(gòu)上通常是：substitute A for B“用A代替B”（使用A）replace A with B“用B替換A”（使用B）知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)We sub

11、stituted sugar for honey.我們用糖代替蜂蜜。He replaced a flat tyre with a new one.他用新輪胎替換爆胎。知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)【鏈接訓(xùn)練】It is wise of you to_well trained workers_untrained ones in the assembly line.A.substitute；forB.substitute；withC.replace；byD.replace；with【解析】substitute A for B 意為“用A代替B”，其余三項(xiàng)均為“用B代替A”。【答案】A知 識(shí)

12、與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)Doctors warned against chewing tobacco as a_ for smoking.A.reliefB.wayC.substituteD.feeling【解析】句意為：醫(yī)生警告不要用嚼煙葉來代替抽煙。四個(gè)選項(xiàng)中能和題干中的for構(gòu)成固定搭配的只有substitute，意為“代替者，替代品”。relief 意為“減輕，消除”；way 意為“方式，方法”；feeling 意為“感情”。【答案】C知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)3.acknowledge vt.承認(rèn)（的重要性）；確認(rèn)；對(duì)表示答謝歸納拓展（1）acknowledge sth

13、./that-clause承認(rèn)acknowledge.to be/as.認(rèn)為是；承認(rèn)acknowledge doing/having done承認(rèn)做過It is universally/generally acknowledged that.是大家公認(rèn)的；被公認(rèn)為acknowledge ones letter向某人表示信已收到知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)（2）acknowledgement n.承認(rèn)；感謝in acknowledgement of 對(duì)的承認(rèn)/答謝Do you acknowledge that youve been wrong？你承認(rèn)你錯(cuò)了嗎？He acknowledge

14、d having been defeated at last.最后，他承認(rèn)他輸了。Yao Ming is acknowledged as one of the best basketball players in the NBA.姚明被公認(rèn)為是NBA中最優(yōu)秀的球員之一。She acknowledged his help in her book.她在書中向他表達(dá)了感謝。知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)【鏈接訓(xùn)練】His long service with the company was_with a present.A.admittedB.AcknowledgedC.attributedD.

15、accepted【解析】句意為：由于他長(zhǎng)期為公司服務(wù)，因而公司向他贈(zèng)送了一件禮物以表謝意。acknowledge 在此意為“向表示感謝”。admit 意為“承認(rèn)”；attribute 意為“把歸因于”；accept 意為“接受”。【答案】B知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)Only after he was brought to the police station did the young man_he had stolen some purses from other passengers.A.participateB.RealizeC.summarizeD.acknowledge【解

16、析】句意為：只有被帶到警察局之后那個(gè)年輕人才承認(rèn)他偷了其他乘客的錢包。acknowledge 意為“承認(rèn)”，符合題意。【答案】D知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)4.occupy vt. 占用（空間、時(shí)間）等，占領(lǐng)；占據(jù)歸納拓展（1）occupy sb./oneselfin doing sth.with sth.使某人/自己忙于某事occupy ones mind/thoughts/attention占據(jù)某人的頭腦/思想/注意力be fully occupied忙得不可開交（2）be occupiedin doing sth.with sth.=be busydoing sth.with s

17、th.忙于做某事知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)（3）occupation n.占領(lǐng)；職業(yè)；消遣under occupation 在占領(lǐng)之下，占領(lǐng)中l(wèi)ose ones occupation 失業(yè)by occupation 職業(yè)上The bed seemed to occupy most of the room.床似乎占去了大半個(gè)屋子。I have been occupied in reading books.我忙著讀書。She occupied herself with routine office tasks.她忙于辦公室的日常工作。He is a doctor by occupatio

18、n.他的職業(yè)是醫(yī)生。（不可說：His occupation is a doctor.）知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)【鏈接訓(xùn)練】Mary is_a translation of French novel.A.engaged withB.busy inC.absorbed toD.occupied with【解析】“忙于做某事”可用be occupied with sth./in (doing)sth./be engaged in sth./be busy with sth./doing sth.。be absorbed in 意為“被吸引，集中精力干某事”，沒有be absorbed t

19、o這種用法。【答案】D知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)Professor Wangs lecture is so popular with young people that all the seats are .A.abandonedB.emptiedC.coveredD.occupied【解析】根據(jù)句意可知，應(yīng)是“所有的座位都坐滿了”，故選D項(xiàng)。occupy 意為“占用；占據(jù)”；abandon 意為“放棄；拋棄”；empty 意為“騰空”；cover 意為“蓋；覆蓋”?！敬鸢浮緿知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)要點(diǎn)二：重點(diǎn)短語與句型1.keep it up保持優(yōu)秀成績(jī)；繼續(xù)干下去；

20、干得好歸納拓展（1）keep up不落后；維持，保持，使（斗志等）不低落keep up with跟上；向看齊（2）keep相關(guān)短語keep a close/careful watch on 密切注意/監(jiān)視keep an eye on 留神；照看keep away from （使）避開，不接近keep a record保持記錄keep sth.in mind把記在心里keep off 使不接近，使避免keep on 繼續(xù)，持續(xù)keep.out of 擋住，使進(jìn)不去；不惹事知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)Ive been working twelve hours a day,but I sha

21、ll not be able to keep it up.我一直是每天工作12個(gè)小時(shí)，不過我再也堅(jiān)持不住了。Were on a winning streakhopefully we can keep it up.近來我們連連獲勝，但愿能夠再接再厲。Her illness kept her away from work for several weeks.她病得好幾周都上不了班。We must keep the enemy out of the country.我們必須御敵于國(guó)門之外。知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)【鏈接訓(xùn)練】If we can_this speed，we should a

22、rrive there in about two days.A.keep upB.keep onC.keep toD.keep with【解析】keep up意為“保持”；keep on doing sth.意為“持續(xù)做某事”；keep to“遵守（諾言），堅(jiān)持”?！敬鸢浮緼知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)As a senior 3 students,if you want to get a good result,Its important to a good state of mind for the coming national entrance examination.A.kee

23、p upB.carry outC.keep offD.keep out【解析】句意為：作為一名高三的學(xué)生，如果想取得好的成績(jī)，保持一個(gè)好的狀態(tài)對(duì)即將到來的高考是很重要的。keep up意為“保持”，符合題意。carry out“執(zhí)行”；keep off“遠(yuǎn)離”；keep out“使不進(jìn)入”。均不符合題意?！敬鸢浮緼知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)2.feel at home感覺自在；不拘束；覺得舒適歸納拓展feel at home in some place在某處感覺自在feel at home with sb.和某人一見如故feel oneself感到有精神feel like sth./

24、doing sth.想要某物/做某事feel free （to do sth.） （表示允許）隨便做某事not feel oneself 覺得身體不好；感到身體不舒服I never feel at home in public.在公共場(chǎng)合我感覺不自在。Im not quite feeling myself today.我今天覺得身體不大舒服。Can I use your phone？我能用你的電話嗎？Feel free.隨便用吧。知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)【鏈接訓(xùn)練】Would you like to go shopping with me this afternoon？ .A.No

25、 way.Ill do my homeworkB.Its a pleasureC.Well，I feel like staying at homeD.I have no time【解析】A、D回答不禮貌，B多用于答謝時(shí)的用語，只有C項(xiàng)符合題意。【答案】C知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)Many people wont_in a strange surroundings.A.feel at homeB.make at homeC.help themselvesD.feel free【解析】feel at home 意為“感覺自在，無拘束”。也可用make oneself at home；而h

26、elp oneself 意為“隨便（吃/用等）”。feel free多用于口語，意為“隨便用”?！敬鸢浮緼知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)3.fit in 相適應(yīng)；相融合歸納拓展（1）fit in with sb./sth.與合得來；適應(yīng)fit sth.to sth.使與相符合fit up安裝，安放fit sb./sth.for sth./to do sth.使適合/勝任（2）be fit to do sth.適合做某事be fit for勝任；適合；合格keep fit 保持健康/健美知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)Do these plans fit in with your ar

27、rangements？這些計(jì)劃和你的安排沖突嗎？I dont think hell fit in with the other people.我認(rèn)為他不會(huì)與別人合得來。His experience fitted him perfectly for the job/to do the job.他的經(jīng)驗(yàn)使他完全勝任這項(xiàng)工作/適合做這項(xiàng)工作。Your car is fit to be on the road.你的車子適合上路。知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)【鏈接訓(xùn)練】Even though he lived in the big city for a long time, he found h

28、imselfthe life of countryside more.A.go withB.adapt forC.live up toD.fit in with 【解析】考查動(dòng)詞短語辨析。句意為：盡管在大城市生活了很長(zhǎng)時(shí)間，他發(fā)現(xiàn)他更適應(yīng)鄉(xiāng)村生活。fit in with“相適應(yīng)，相融合”，符合題意。go with“相配；相協(xié)調(diào)”；作“適應(yīng)”講時(shí)adapt與to搭配。live up to“達(dá)到，符合”。【答案】D知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)I want to go to Beijing with you.If so，your holiday arrangement must_mine.A

29、.catch up withB.come up withC.put up withD.fit in with【解析】根據(jù)語境可知答語的意思應(yīng)是“你假期的安排必須和我的相適應(yīng)”，故用fit in with.意為“與相適應(yīng)”。catch up with 意為“追趕”；come up with 意為“提出”；put up with 意為“忍受”?！敬鸢浮緿知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)4.It was the first time she had ever left her motherland.這是她第一次離開她自己的祖國(guó)。It/This/That is the first（second,t

30、hird.）time （that） 后接從句，表示“這是某人第一（二、三）次”，that在口語中常省略。知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)誘導(dǎo)展望在It/This/That is the first （second，third.，last） time （that）后的從句中，主句使用is或will be時(shí)，從句謂語動(dòng)詞多用現(xiàn)在完成時(shí)態(tài)；主句使用was時(shí)，從句謂語動(dòng)詞用過去完成時(shí)。This is the first time I have come to Beijing.這是我第一次來北京。It was the third time that he had taken part in the

31、Olympic Games.那是他第三次參加奧運(yùn)會(huì)了。知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)【鏈接訓(xùn)練】Its the second time that Ito Shanghai.What great changes!Its ten years since Iit last time.A.have been;leftB.had been;leftC.am;had leftD.come;had left【解析】Its the second time that.后的從句中，謂語動(dòng)詞用現(xiàn)在完成時(shí)態(tài)；since引導(dǎo)的時(shí)間狀語從句用一般過去時(shí)態(tài)，故選A。【答案】A知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)要點(diǎn)三

32、：語法：復(fù)習(xí)非限制性定語從句1.非限制性定語從句的含義與先行詞關(guān)系較松散，只是對(duì)先行詞的附加補(bǔ)充說明，可以省略，省略后不影響主句意思的完整性。從句與主句間常用逗號(hào)隔開，譯成漢語時(shí)，從句常單獨(dú)譯成一句。注意其引導(dǎo)詞不能省略。知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)2.引導(dǎo)非限制性定語從句的關(guān)系代詞如下表所示：指代對(duì)象代指人代指物主格who賓語whomwhich，as所有格of whom，whoseof which，whose3.使用非限制性定語從句時(shí)應(yīng)注意的問題（1）that不用來引導(dǎo)非限制性定語從句。I am fond of the novel,which you bought for me.我挺

33、喜歡那本小說，就是你給我買的那本。（2）在非限制性定語從句中，關(guān)系代詞有時(shí)代替修飾的不是前面的名詞或代詞，而是前面整個(gè)一句話，這時(shí)需用which。He looks pale,which suggests that he is in poor health.他看上去臉色蒼白，這表明他不健康。知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)（3）非限制性定語從句不能用why引導(dǎo)，要用for which代替why。I have told him the reason，for which I missed the early bus.我沒能趕上早班車，我告訴了他原因。（4）非限制性定語從句中的引導(dǎo)詞在從句中作賓語

34、，無論指人還是指物都不能省略，如果指人而且作賓語時(shí)，通常用賓格whom。Do you know Tom，whom we talked about？你認(rèn)識(shí)湯姆嗎？我們談到過他。This book，which you can get at any bookshop，will give you all the information you need.這本書會(huì)給你提供所有你需要的資料，它在任何一家書店都能買到。知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)4.as引導(dǎo)的定語從句（1）as引導(dǎo)定語從句，可指人也可指物，通常與the same，such，so等詞連用，在定語從句中可作主語、賓語、表語等。Such

35、people as you described just now are rare nowadays.像你剛才描述的那種人現(xiàn)在已經(jīng)很少了。He is not the same man as he was.他和過去不一樣了。知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)（2）the same.as與the same.thatas引導(dǎo)的定語從句的內(nèi)容與主句所講的事物“相似”，指同類事物。This is the same pen as I lost yesterday.（=This is the same kind of pen as I lost yesterday.）這支鋼筆和我昨天丟的鋼筆一樣。that

36、引導(dǎo)的定語從句表示其內(nèi)容與主句所講的事物是“同一個(gè)”，指同一事物。This is the same pen that I lost yesterday.（=This is the very pen that I lost yesterday.）這就是我昨天丟失的鋼筆。知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)5.from where為“介詞+關(guān)系副詞”結(jié)構(gòu)，但也可以引導(dǎo)定語從句。We stood at the top of the hill,from where we can see the whole town.我們站在山頂上，從那里可以看到整個(gè)城鎮(zhèn)。6.像listen to,look for,d

37、epend on,pay attention to，take care of等固定短語動(dòng)詞，在定語從句中一般不宜將介詞與動(dòng)詞分開。You are the only man whom I can depend on.你是我唯一可信賴的人。知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)7.as 引導(dǎo)的非限制性定語從句與 which 引導(dǎo)的非限制性定語從句的異同which 和 as 都可以指代主句中的一部分或整個(gè)句子的內(nèi)容，有時(shí)可以互換：She was terrified，as/which I could see from her eyes.她很害怕，我從她的眼睛里能看出來。注意：as 引導(dǎo)的非限制性定語從句

38、可以放在主句前面、插在主句中間或放在主句末尾，且有“正如”之意；而 which 引導(dǎo)的非限制性定語從句只能放在主句后面，表示“這點(diǎn)”。知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)As we know,the light travels faster than the sound.正如我們所知，光傳播的速度比聲音傳播的速度快。Mary was late again，which made the teacher angry.瑪麗又遲到了，這使她老師很生氣。as 引導(dǎo)的從句有“正如”“正像”之意，而which 則無此意。常用的句型有：as we all know，as is known to all，as

39、everybody can see，as is expected 等。As we all know，paper was first made in China.據(jù)我們所知，中國(guó)是首先生產(chǎn)紙的國(guó)家。知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)as 引導(dǎo)的從句在意義上不是否定的，而 which 不受此限制。試比較：He did the experiment successfully，as had been expected.正如所預(yù)料的那樣，他做實(shí)驗(yàn)成功了。He failed in the experiment，which was unexpected.他做實(shí)驗(yàn)失敗了，這是沒有預(yù)料到的。知 識(shí) 與 要 點(diǎn)

40、知 識(shí) 與 要 點(diǎn)【鏈接訓(xùn)練】There are two rooms on the first floor， is used as a guest room.A.a smaller of whichB.a smaller of themC.the smaller of whichD.the smaller of them【解析】考查非限制性定語從句的用法。即the+名詞+of which 結(jié)構(gòu)。如果表示特指“兩者之中比較的”應(yīng)該用“the+比較級(jí)+名詞（名詞通常省略）”。【答案】C知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn) is often the case，we have worked out t

41、he production plan.A.WhichB.WhenC.WhatD.As【解析】as和which都可以引導(dǎo)非限制性定語從句，但as引導(dǎo)的從句可以放在主句前面，插在主句中間或放在主句末尾；而which引導(dǎo)的從句只能放在主句后面。故正確答案為D?！敬鸢浮緿知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)In the office I never seem to have time until after 5：30 p.m.， many people have got home.A.whose timeB.thatC.on whichD.by which time【解析】考查非限制性定語從句。by

42、which time指“到那時(shí)為止”，與完成時(shí)連用；介詞on后接具體日期，不接時(shí)刻，故C項(xiàng)錯(cuò)誤?！敬鸢浮緿知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)The reason_they were not accepted is_they didnt receive enough education.A.why；becauseB.that；forC.why;thatD.that;that【解析】前面是一個(gè)定語從句，先行詞是reason，須用關(guān)系副詞why（=for which）引導(dǎo)而且作從句的狀語；后面是表語從句，因前面已出現(xiàn)reason，所以because，for等不可選?！敬鸢浮緾知 識(shí) 與 要 點(diǎn)知 識(shí) 與 要 點(diǎn)