unin4 Feed the world（通用2篇）

unin4Feedtheworld篇1

Lesson14教学设计方案

StepI:Introduction

Goodmorning,class.First,Iwillaskyouaquestion:“Doyouoftenfeelhungry?”Wanglin,please…

While,maybeyoudon’toftenfeelhungry,becauseyouhaveplentytoeat.Butinsomepoorareasintheworld,manypeopleevenstarvetodeath.Isthattrue?Now,pleaseopenyourbooktopage20

Andfindouttheanswer:“Howmanypeoplestarvetodeatheachyear?”Ionlygiveyouoneminute.Ifyoufindouttheanswer,putupyourhand.Let’sseewhoisthefirst.

StepII:Fastreading;

A.Scanning:

Findouttheanswertothefollowingquestionwithintwominutes:

“whyisfarmlandbeinglost?”

B.ReadingComprehension

1.Whatcanbedometoincreasethefoodsupply?

A.toplantnewtrees.

B.Toreducethelostinstorage

C.Tobuildmoreandmorefarms

D.Todevelopnewplantsforfood       [D]

2.      Whyissomuchfoodlostinstorage?

A.     Thefoodisthrownawaybypeople.

B.     Peoplepaylessattentiontothefoodstore

C.     Thefoodisdamagedbyrain

D.    Thefoodgoesbad                  [B]

3.Foodstoresarefrequentlyruinedbyrainordamp.

Whatdoes“ruin”mean?

A.removed    B.cleaned       C.damaged     D.washedaway    [C]

4.Whatkindofplantsarescientistsdeveloping?

A.Theplantwhichcanbegrownonthemoon

B.Theplantwhicharelikelytobeattackedbypests.

C.Theplantwhichcanbeplantedinpoorsoil

D.Theplantwhichisheavier.                  [C]

StepIII.Fillinblanks(通过这个练习，既可以锻炼学生语境中对词汇的领悟力，又是高考完型填空的基础训练，课堂实践证明效果较好，建议教师选用)

Now,Iwillgiveyouanotherseventoeightminutestoreadthetextindetails.Pleasepayspecialattentiontothekeywordsandphrases.ThenI’llaskyoutocloseyourbooksandfillinblankswithoutconsultinganything.

1.Halftheworld’sworkersearntheirlivingby_______.(farming)

2.Theproblenishowtofeedagrowingworldpopulationof_____6billion.(over)

3.Onlyabout11%oftheearth’slandsurfaceis_____forgrowing______.Andthisareaisbecomingsmallerday____day.(suitable,crops,by)

4.That’swhytheChinesepeoplearemakinggreat_____to______theirfarmland.(efforts,protect)

5.Farmlandisbeinglostforseveralreasons.First,itis_____built_____.(being,on)

6.It’swellknownthatpestscontinuetoeatcrops,______damage.(causing)

7.TheFAOhasworkedoutthatup____30%offoodislostinstorage.(to)

8.It’sthoughtthat500millionpeopleintheworlddonothaveenoughtoeat,that’saboutone____ten.Everyyearabout40millionpeople_______todeath.(in,starve)

9.Theyarealsodevelopingnewtypesofplantsthatcanbegrownin_____soilorevensand,andthatareless____tobe_____by____anddiseases.(poor,likely,attacked,pests)

StepIV.Diction

1.Inthistext,didyounoticetheword“farming”?What’sthedifferencebetween“farming”and“farm”?Let’slookatasentencefirst.

Thefarmersliveby_______.(farm,farming)(Whichwordwillyouchoose?)

Yes,“farming”isthecorrectword.

Farm:anareaofland,togetherwithitsbuildings.

Farmland:onlythelandforfarming.

Farming:workingonthefarm.

Tofarm:todofarmwork

1).Theyliketoeat_______.   2).Theyliveby________.(fish,fishing)

2.workout:TheFAOhasworkedoutthatupto30%offoodislostinstorage.

a)workout一词的“新词义”曾经出现在2001年高考“单项真空”中，现在，可结合Lesson14的内容，试用workout的“新词义”造句如下：

Variousthingshavebeendonetoincreasethefoodsupplyintheworld.Butatfirsttheyallseemedunlikelytobeofanyefficiencyatall.However,dozensofyearshavepassedandmostoftheeffortsseemtobeworkingoutfarbetterthanmostoftheoptimisticpeopleexpected.

b)workat,workon,workout

workat和workon都有“从事……”的意思。

在此意义上，两者可以换用。如：

IsTomstillworkingat/onthenewnovelthathepromised?

workat还有“在……工作”的意思。如：

Howlonghaveyoubeenworkingatthisschool?

workon还有（激起人的感情等）“对……起作用，影响……”的意思。如：

Thesightofsomuchsufferingworkedonourheartssothatwewerefilledwithpity.

这么多受难的情景时震憾了我们的心，我们心中都充满了同情。

workout表示“计算出，解决（问题）”等意思。如：

Canyouworkouthowmuchitcoststofeedacommonfamily?

Ican’tworkoutthissum.

workout还有“想出，弄清楚（常用于否定句）”等意思。如：

Wemustworkoutabettermethodofsavingmoney.

Ican’tworkoutthemeaningofthispoem.1.order的用法

StepV.Phrases

Besuitablefor daybyday  upto30%   ruin  instorage  starvetodeath belikelytodo  attack  variousthings

参考文档1

只有11%的地球表面适合种庄稼(besuitablefor)，而且这个面积还在日渐减小(daybyday)。高达30%的食品在存储时丢失(upto)。存储的食品被雨，老鼠不断的毁坏(ruin,instorage)。每年都有大量的人们因饥饿而死亡(starvetodeath)。人们正在尝试很多办法来增加粮食供给。科学家正在发明新的植物，这些植物不容易被害虫侵害(attack,pest)   。

参考译文：Only11%oftheearth’slandsurfaceissuitableforgrowingcrops.Andthisareaisbecomingsmallerandsmallerdaybyday.It’sworkedoutthatupto30%offoodislostinstorage.Foodstoresarefrequentlyruinedbyrain,oreatenbymice.Everyyearagreatnumberofpeoplestarvetodeath.Peoplearetryingvariouswaystoincreasefoodsupply.Scientistsaredevelopingnewtypesofplantswhicharelesslikelytobeattackedbypestsanddiseases.

听力完型教案

1.Listening:Fillinblanks(通过这项训练可以训练学生很强的专注力，这在高考中至关重要。同时还可以训练学生把握细节的能力，这样一篇听力材料会有更好的教学效果。)

feedtheworld

Afoodscientistisdiscussingthemaintypesoffoodcrops.(S=scientist;I=interviewer)

I:Oneofthemostimportantfoodcropsintheworldofcourseisrice.Whyisitsoimportant?

S:Well,foronething,everyonecaneatit,andit’ssuittableforsickpeopleandyoungchildren.

I:Isitgrownallovertheworld?

S:No.Itneedsahotclimateandlotsofwater.Soitcan’tbegrownincoldcountriesorwherethereislittlewater.Butwheretheconditionsareright,youcangrowthreericecropsinayear.

I:Canyouliveonricealone?

S:No.Itdoesn’tcontainallthefoodsabodyneedstostayhealthy.Alsoit’sbettertoeatthewholegrain,butinmanypartsoftheworldit’sthecustomtoremovethebrownoutsidepartofthegrain.I:Whataboutthepotato?

S:Well,thepotatoisaverygoodfoodforthehumanbody.Soyoucouldliveforsixmonthsjustbyeatingpotatoes.Inayear,youwouldalsoneedtoeatalittlefatandsomefreshfruittostayhealthy.

I:Wherearepotatoesgrown?

S:Theycanbegrownincoldcountries,likethenorthofEuropeandupinthemountainsofSouthAmerican,wherethepotatocamefrom.

I:Whataboutbread?

S:Breadcanbemadefromdifferentgrains.It’sanimportantfoodinthenorthofEuropewhereit’scoldbutalsointheMiddleEast.It’saverygoodfood,butyouneedtoeatotherfoodslikefreshfruitandvegetablestostayhealthy.

I:Arethereanyotherfoodswehaven’tmentioned?

S:Yes,there’sIndiancorn.ThiscamefromAmerica,butisnowaveryimportantcropallovertheworld.Youneedawarmsunnyclimatetogrowmaize,butitdoesn’tneedasmuchwaterasrice.Mindyou,ifyouwateryourmaize,youwillgetabettercrop.

I:Andwehaven’tmentionednoodles.

S:No.Veryimportant!Noodlesandpastaarebothmadefromatypeofhardgrain.thjegrainisturnedintoapowder,mixedwithwaterandthenformedintodifferentshapes.InAsiaandtheMiddleWestthesearecallednoodlesandinItalythesearecalledpasta.

II.完形填空精品：（这篇完形语境较强，情节曲折，文法地道，如果学生能背诵下来，效果更好）

“I’vebeenwritingabook,John.Doyouthinkanyonewouldbeinterestedin  1  it?”saidtheoldlady.

Johntook  2  thepapersfromhershakinghandand  3 herinachair.Herememberedherrich  4  intheearlydaysoftheOldWest.Helookedthroughthepapers,“It’sgood,Grandma.”hesaidgently.Thenrealizingthatshecouldn’thearhim,heshouted  5 herears.“Ithinkitsverygood.I’ll  6 ittoapublisher.”

Tendayslater,hereportedthatthepublisherhadhadtimetoreadonlyafewpages.Buthewassoimpressedthathehadsent$100foranoption(版权). 7  moneywouldbegivenasanadvance.EverymonthJohnbrought$100forherwithaletterfromthepublishertellingaboutthe  8 ofthebook.

Onemorning,threemonthsafterher100thbirthday,Grandmadidn’tgetup.Thedoctortoldherthatshecouldn’t  9 morethanafewdays.Shewas  10  togo,butshefirstwantedherbooktobein   11  .Johnpromisedthatshewouldgetitverysoon.

Grandma  12 onuntilthedaythebookcameintoherhands,withthetitleandhernameonthecover.Thoughshecouldn'tseeit,shecould  13  it.She  14  traced(探查)hernamewithherfingers,tearsinhereyes.Twohourslater.Shediedpeacefully,stillholdingherbook.Hergranddaughtertookupthebookandopenedit.“Why,it’sjustblankpages!”shecriedin  15 .

John'sfaceturned  16   .Thenthegirlunderstood.Thereneverwasabook.Grandmacouldn’thearthelittlebellwhenthetypewritercametothe  17 oftheline.Shewouldkeeponworking,not  18  thewholesentencesandsometimestheparagraphswere   19 .Johndidnottellher,forhecouldn’ttakeawayheronly  20  .ItwasJohnhimselfwhohadwrittenthelettersandsoldhiscartopaytheadvance.

1.A.buying  B.publishing  C.reading    D.lending

[解析]老太太一直在写一本书，她想知道是否有人有兴趣“出版”它。

答案：B

2.A.away  B.over  C.on   D.off

[解析]takeover意为“接过来”答案：B

3.A.sat     B.put   C.placed   D.seated   

答案：D

4.A.sufferings  B.experiences  C.thoughts D.family

[解析]richexperiences意为“丰富的经历”。

答案：B

5.A.towards    B.inside   C.into      D.on    答案：C

6.A.throw      B.put     C.send     D.lift    答案：C

7.A.Some      B.Much   C.Enough  D.More   答案：D

8.A.name      B.progress  C.writer   D.cove

[解析]为了让老奶奶相信她的书快出版了，每个月他都拿回$100及出版商的一封信，告诉她出版该书的“进展”情况。  答案：B

9.A.die   B.stay   C.last      D.remain     

答案：C

10.A.worried       B.anxious   C.ready    D.eager   

答案：C

11.A.time         B.publish    C.sale     D.print

[解析]老奶奶临终前的愿望就是能看到她的书。beinprint意为“已出版”。答案：D

12.A.went        B.kept  C.carried      D.held

[解析]老奶奶的期盼使她坚持活到了书到她手中的那一天。holdon意为“支持；维持”。

答案：D (2002年高考单项填空：holdonto.)

13.A.read      B.smell  C.hear    D.touch     答案：D

14.A.proudly   B.quickly C.careful   D.slow

[解析]盼望已久的书终于出版了，老奶奶的心情应该是非常的“自豪”。

答案：A

15.A.anger     B.joy    C.surprise    D.tears

答案：C

16.A.white     B.red    C.gray      D.pale

答案：B

17.A.middle    B.last    C.end       D.beginning

答案：C         

18.A.writing    B.knowingC.thinking   D.wanting

答案：B      

19.A.missing    B.finishedC.completed D.ended

[解析]由于老奶奶耳聋，眼也看不见，所以打字时，她听不到行末的铃声，也看不到已打到行末。因此整个句子，有时几段都有没有打下来。

答案：A

20.A.hope  B.book   C.life     D.papers     答案：A

unin4Feedtheworld篇2

Lesson14教学设计方案

StepI:Introduction

Goodmorning,class.First,Iwillaskyouaquestion:“Doyouoftenfeelhungry?”Wanglin,please…

While,maybeyoudon’toftenfeelhungry,becauseyouhaveplentytoeat.Butinsomepoorareasintheworld,manypeopleevenstarvetodeath.Isthattrue?Now,pleaseopenyourbooktopage20

Andfindouttheanswer:“Howmanypeoplestarvetodeatheachyear?”Ionlygiveyouoneminute.Ifyoufindouttheanswer,putupyourhand.Let’sseewhoisthefirst.

StepII:Fastreading;

A.Scanning:

Findouttheanswertothefollowingquestionwithintwominutes:

“whyisfarmlandbeinglost?”

B.ReadingComprehension

1.Whatcanbedometoincreasethefoodsupply?

A.toplantnewtrees.

B.Toreducethelostinstorage

C.Tobuildmoreandmorefarms

D.Todevelopnewplantsforfood       [D]

2.      Whyissomuchfoodlostinstorage?

A.     Thefoodisthrownawaybypeople.

B.     Peoplepaylessattentiontothefoodstore

C.     Thefoodisdamagedbyrain

D.    Thefoodgoesbad                  [B]

3.Foodstoresarefrequentlyruinedbyrainordamp.

Whatdoes“ruin”mean?

A.removed    B.cleaned       C.damaged     D.washedaway    [C]

4.Whatkindofplantsarescientistsdeveloping?

A.Theplantwhichcanbegrownonthemoon

B.Theplantwhicharelikelytobeattackedbypests.

C.Theplantwhichcanbeplantedinpoorsoil

D.Theplantwhichisheavier.                  [C]

StepIII.Fillinblanks(通过这个练习，既可以锻炼学生语境中对词汇的领悟力，又是高考完型填空的基础训练，课堂实践证明效果较好，建议教师选用)

Now,Iwillgiveyouanotherseventoeightminutestoreadthetextindetails.Pleasepayspecialattentiontothekeywordsandphrases.ThenI’llaskyoutocloseyourbooksandfillinblankswithoutconsultinganything.

1.Halftheworld’sworkersearntheirlivingby_______.(farming)

2.Theproblenishowtofeedagrowingworldpopulationof_____6billion.(over)

3.Onlyabout11%oftheearth’slandsurfaceis_____forgrowing______.Andthisareaisbecomingsmallerday____day.(suitable,crops,by)

4.That’swhytheChinesepeoplearemakinggreat_____to______theirfarmland.(efforts,protect)

5.Farmlandisbeinglostforseveralreasons.First,itis_____built_____.(being,on)

6.It’swellknownthatpestscontinuetoeatcrops,______damage.(causing)

7.TheFAOhasworkedoutthatup____30%offoodislostinstorage.(to)

8.It’sthoughtthat500millionpeopleintheworlddonothaveenoughtoeat,that’saboutone____ten.Everyyearabout40millionpeople_______todeath.(in,starve)

9.Theyarealsodevelopingnewtypesofplantsthatcanbegrownin_____soilorevensand,andthatareless____tobe_____by____anddiseases.(poor,likely,attacked,pests)

StepIV.Diction

1.Inthistext,didyounoticetheword“farming”?What’sthedifferencebetween“farming”and“farm”?Let’slookatasentencefirst.

Thefarmersliveby_______.(farm,farming)(Whichwordwillyouchoose?)

Yes,“farming”isthecorrectword.

Farm:anareaofland,togetherwithitsbuildings.

Farmland:onlythelandforfarming.

Farming:workingonthefarm.

Tofarm:todofarmwork

1).Theyliketoeat_______.   2).Theyliveby________.(fish,fishing)

2.workout:TheFAOhasworkedoutthatupto30%offoodislostinstorage.

a)workout一词的“新词义”曾经出现在2001年高考“单项真空”中，现在，可结合Lesson14的内容，试用workout的“新词义”造句如下：

Variousthingshavebeendonetoincreasethefoodsupplyintheworld.Butatfirsttheyallseemedunlikelytobeofanyefficiencyatall.However,dozensofyearshavepassedandmostoftheeffortsseemtobeworkingoutfarbetterthanmostoftheoptimisticpeopleexpected.

b)workat,workon,workout

workat和workon都有“从事……”的意思。

在此意义上，两者可以换用。如：

IsTomstillworkingat/onthenewnovelthathepromised?

workat还有“在……工作”的意思。如：

Howlonghaveyoubeenworkingatthisschool?

workon还有（激起人的感情等）“对……起作用，影响……”的意思。如：

Thesightofsomuchsufferingworkedonourheartssothatwewerefilledwithpity.

这么多受难的情景时震憾了我们的心，我们心中都充满了同情。

workout表示“计算出，解决（问题）”等意思。如：

Canyouworkouthowmuchitcoststofeedacommonfamily?

Ican’tworkoutthissum.

workout还有“想出，弄清楚（常用于否定句）”等意思。如：

Wemustworkoutabettermethodofsavingmoney.

Ican’tworkoutthemeaningofthispoem.1.order的用法

StepV.Phrases

Besuitablefor daybyday  upto30%   ruin  instorage  starvetodeath belikelytodo  attack  variousthings

参考文档1

只有11%的地球表面适合种庄稼(besuitablefor)，而且这个面积还在日渐减小(daybyday)。高达30%的食品在存储时丢失(upto)。存储的食品被雨，老鼠不断的毁坏(ruin,instorage)。每年都有大量的人们因饥饿而死亡(starvetodeath)。人们正在尝试很多办法来增加粮食供给。科学家正在发明新的植物，这些植物不容易被害虫侵害(attack,pest)   。

参考译文：Only11%oftheearth’slandsurfaceissuitableforgrowingcrops.Andthisareaisbecomingsmallerandsmallerdaybyday.It’sworkedoutthatupto30%offoodislostinstorage.Foodstoresarefrequentlyruinedbyrain,oreatenbymice.Everyyearagreatnumberofpeoplestarvetodeath.Peoplearetryingvariouswaystoincreasefoodsupply.Scientistsaredevelopingnewtypesofplantswhicharelesslikelytobeattackedbypestsanddiseases.

听力完型教案

1.Listening:Fillinblanks(通过这项训练可以训练学生很强的专注力，这在高考中至关重要。同时还可以训练学生把握细节的能力，这样一篇听力材料会有更好的教学效果。)

feedtheworld

Afoodscientistisdiscussingthemaintypesoffoodcrops.(S=scientist;I=interviewer)

I:Oneofthemostimportantfoodcropsintheworldofcourseisrice.Whyisitsoimportant?

S:Well,foronething,everyonecaneatit,andit’ssuittableforsickpeopleandyoungchildren.

I:Isitgrownallovertheworld?

S:No.Itneedsahotclimateandlotsofwater.Soitcan’tbegrownincoldcountriesorwherethereislittlewater.Butwheretheconditionsareright,youcangrowthreericecropsinayear.

I:Canyouliveonricealone?

S:No.Itdoesn’tcontainallthefoodsabodyneedstostayhealthy.Alsoit’sbettertoeatthewholegrain,butinmanypartsoftheworldit’sthecustomtoremovethebrownoutsidepartofthegrain.I:Whataboutthepotato?

S:Well,thepotatoisaverygoodfoodforthehumanbody.Soyoucouldliveforsixmonthsjustbyeatingpotatoes.Inayear,youwouldalsoneedtoeatalittlefatandsomefreshfruittostayhealthy.

I:Wherearepotatoesgrown?

S:Theycanbegrownincoldcountries,likethenorthofEuropeandupinthemountainsofSouthAmerican,wherethepotatocamefrom.

I:Whataboutbread?

S:Breadcanbemadefromdifferentgrains.It’sanimportantfoodinthenorthofEuropewhereit’scoldbutalsointheMiddleEast.It’saverygoodfood,butyouneedtoeatotherfoodslikefreshfruitandvegetablestostayhealthy.

I:Arethereanyotherfoodswehaven’tmentioned?

S:Yes,there’sIndiancorn.ThiscamefromAmerica,butisnowaveryimportantcropallovertheworld.Youneedawarmsunnyclimatetogrowmaize,butitdoesn’tneedasmuchwaterasrice.Mindyou,ifyouwateryourmaize,youwillgetabettercrop.

I:Andwehaven’tmentionednoodles.

S:No.Veryimportant!Noodlesandpastaarebothmadefromatypeofhardgrain.thjegrainisturnedintoapowder,mixedwithwaterandthenformedintodifferentshapes.InAsiaandtheMiddleWestthesearecallednoodlesandinItalythesearecalledpasta.

II.完形填空精品：（这篇完形语境较强，情节曲折，文法地道，如果学生能背诵下来，效果更好）

“I’vebeenwritingabook,John.Doyouthinkanyonewouldbeinterestedin  1  it?”saidtheoldlady.

Johntook  2  thepapersfromhershakinghandand  3 herinachair.Herememberedherrich  4  intheearlydaysoftheOldWest.Helookedthroughthepapers,“It’sgood,Grandma.”hesaidgently.Thenrealizingthatshecouldn’thearhim,heshouted  5 herears.“Ithinkitsverygood.I’ll  6 ittoapublisher.”

Tendayslater,hereportedthatthepublisherhadhadtimetoreadonlyafewpages.Buthewassoimpressedthathehadsent$100foranoption(版权). 7  moneywouldbegivenasanadvance.EverymonthJohnbrought$100forherwithaletterfromthepublishertellingaboutthe  8 ofthebook.

Onemorning,threemonthsafterher100thbirthday,Grandmadidn’tgetup.Thedoctortoldherthatshecouldn’t  9 morethanafewdays.Shewas  10  togo,butshefirstwantedherbooktobein   11  .Johnpromisedthatshewouldgetitverysoon.

Grandma  12 onuntilthedaythebookcameintoherhands,withthetitleandhernameonthecover.Thoughshecouldn'tseeit,shecould  13  it.She  14  traced(探查)hernamewithherfingers,tearsinhereyes.Twohourslater.Shediedpeacefully,stillholdingherbook.Hergranddaughtertookupthebookandopenedit.“Why,it’sjustblankpages!”shecriedin  15 .

John'sfaceturned  16   .Thenthegirlunderstood.Thereneverwasabook.Grandmacouldn’thearthelittlebellwhenthetypewritercametothe  17 oftheline.Shewouldkeeponworking,not  18  thewholesentencesandsometimestheparagraphswere   19 .Johndidnottellher,forhecouldn’ttakeawayheronly  20  .ItwasJohnhimselfwhohadwrittenthelettersandsoldhiscartopaytheadvance.

1.A.buying  B.publishing  C.reading    D.lending

[解析]老太太一直在写一本书，她想知道是否有人有兴趣“出版”它。

答案：B

2.A.away  B.over  C.on   D.off

[解析]takeover意为“接过来”答案：B

3.A.sat     B.put   C.placed   D.seated   

答案：D

4.A.sufferings  B.experiences  C.thoughts D.family

[解析]richexperiences意为“丰富的经历”。

答案：B

5.A.towards    B.inside   C.into      D.on    答案：C

6.A.throw      B.put     C.send     D.lift    答案：C

7.A.Some      B.Much   C.Enough  D.More   答案：D

8.A.name      B.progress  C.writer   D.cove

[解析]为了让老奶奶相信她的书快出版了，每个月他都拿回$100及出版商的一封信，告诉她出版该书的“进展”情况。  答案：B

9.A.die   B.stay   C.last      D.remain     

答案：C

10.A.worried       B.anxious   C.ready    D.eager   

答案：C

11.A.time         B.publish    C.sale     D.print

[解析]老奶奶临终前的愿望就是能看到她的书。beinprint意为“已出版”。答案：D

12.A.went        B.kept  C.carried      D.held

[解析]老奶奶的期盼使她坚持活到了书到她手中的那一天。holdon意为“支持；维持”。

答案：D (2002年高考单项填空：holdonto.)

13.A.read      B.smell  C.hear    D.touch     答案：D

14.A.proudly   B.quickly C.careful   D.slow

[解析]盼望已久的书终于出版了，老奶奶的心情应该是非常的“自豪”。

答案：A

15.A.anger     B.joy    C.surprise    D.tears

答案：C

16.A.white     B.red    C.gray      D.pale

答案：B

17.A.middle    B.last    C.end       D.beginning

答案：C         

18.A.writing    B.knowingC.thinking   D.wanting

答案：B      

19.A.missing    B.finishedC.completed D.ended

[解析]由于老奶奶耳聋，眼也看不见，所以打字时，她听不到行末的铃声，也看不到已打到行末。因此整个句子，有时几段都有没有打下来。

答案：A

20.A.hope  B.book   C.life     D.papers     答案：A