2021陕西中考英语试卷+答案+解析(word整理版)

这是一份2021陕西中考英语试卷+答案+解析(word整理版)，共10页。
第一部分 (听力 共30分)(略)
第二部分 (笔试 共90分)
Ⅲ.完形填空(共20小题,计20分)
第一节:阅读下面短文,按照句子结构的语法性和上下文连贯的要求,从所给的四个选项中选出一个最佳答案,使短文连贯完整。
Lng ag and far away, there lived an ld man and wman. One day, while the wman 21 clthes in the river, she saw a great big range n the water mving slwly twards her. Excitedly, she caught the range and decided 22 it hme t eat.
When the wman began t pen the range, suddenly, ut jumped a little lvely by! The man and wman didn?t knw 23 . But they felt very happy and named the by Bbnar, r Orange By. As time went by, the by became very strng and brave.
Life was wnderful until sme rbbers(盗贼)mved nt a nearby island. The rbbers were always stealing 24 things frm the peple. Bbnar wanted t drive all f them away. S he put sme f his mther?s delicius fd int 25 bx and left hme with it fr the island. Alng the way, he met a dg, a mnkey and a bird. Bbnar gave each f 26 sme fd and helped them a lt. S they became gd friends. 27 he tld them abut his prblem, each f the three friends said, “I will help yu get the rbbers away.”
28 the help f his three friends, Bbnar drve the rbbers away successfully. He and his friends returned hme with the valuable things that 29 by the rbbers. All the peple in the twn 30 s happy t see their things back that they cheered and called him a her.
B.is washingC.was washingD.washed
B.t takeC.thrwD.t thrw
they shuld dB.hw shuld they d
C.what they shuld dD.what shuld they d
B.muchC.littleD.few
25.A.aB.anC.theD./
B.theirC.themD.theirs
B.IfC.BefreD.When
B.OnC.WithD.At
B.were stlenC.stealD.are stlen
B.wasC.areD.were
第二节:阅读下面短文,理解大意,从所给的四个选项中选出一个最佳答案,使短文连贯完整。
a ty rangutan
sitting n a blanket
Remy?s mther gt sick befre he was brn. She culd nt 31 Remy. S he needed a fster mther t take care f him. A fster mther is a mther wh takes smene else?s child int her 32 and cares fr the child fr a perid f time just as what she wuld d t her wn child. In ur human sciety, when a child?s 33 meet their unfrtunate(不幸的)deaths fr a certain reasn r reasns, r its parents becme t 34 t lk after it, this child will have t find a fster family, especially when it is a baby r at a very yung age. In the wrld f 35 in nature, the yung may nt be s lucky r easy t find a fster parent if their parents die r 36 the ability t raise them. Mst f them will have t face a 37 end. Will Remy be as unlucky as mst f the unfrtunate yung?
Madu is a grwn-up rangutan. She 38 had a baby f her wn. But she had cared fr tw ther rangutan babies that didn?t have mms. Wuld Madu be a fster mther t Remy, t?
With his blanket and tys, Remy went t 39 Madu. It was lve at first sight. Sn Remy climbed n Madu?s back. Remy watched Madu. Madu taught Remy what t eat, 40 she als shwed him hw t hang and climb. Remy learned hw t be an rangutan.
afterB.lk atC.lk frD.lk like
B.cmpanyC.shpD.family
B.neighbrsC.parentsD.friends
B.kindC.healthyD.rich
B.animalsC.waterD.space
B.lseC.develpD.keep
B.bringC.happyD.sad
B.ftenC.smetimesD.never
B.meetC.cntrlD.hurt
B.butC.rD.s
Ⅳ.阅读理解(共15小题,计20分)
第一节:阅读下面A、B、C三篇短文,从所给的四个选项中选出能回答所提问题或完成所给句子的一个最佳答案。(共10小题,计15分)
A
Cindy was eight years ld and lived with her parents in Califrnia. One day, her parents tld her that they wuld leave Califrnia in a week and mve t Flrida because her father fund a new jb there.
A week later, after they mved t Flrida, Cindy?s mther tk her t meet her new teacher. The teacher said, “Welcme t ur schl, Cindy. Let me tell yu what we d in ur secnd-grade class. We start the day with reading and writing. After that, we d math. Then we g ut t have a lng rest fr utdr activities. We eat lunch at eleven ?clck. Then we have stry time. After stry time, we have science. Then we g t learning centers. There yu can wrk n the cmputer, play a game, r read a bk. Next, we have spelling(写字课). Finally, we g t music and art classes fr the last hur f the day. Here is a time list f the subjects and schl activities fr yu. There is sme ther infrmatin in it. I?ll be glad t see yu tmrrw, Cindy! I?m sure yur new classmates will be glad t see yu, t. ”
41.What grade was Cindy in when she mved t Flrida with her parents?
A.In Grade One.B.In Grade Tw.
C.In Grade Three.D.In Grade Fur.
42.Accrding t the passage, Cindy wuld at her new schl.
A.have math befre reading and writing
B.d utdr activities after lunch
C.play games in learning centers
D.take music and art classes in the mrning
43.We can knw frm the passage that Cindy?s new teacher was .
A.friendlyB.hnestC.humrusD.quiet
B
Lk at the Earth frm space. Why des ur planet lk s blue? It?s blue because water cvers almst three quarters f the Earth?s surface. Water is nt just an imprtant part f ur planet. It is an imprtant part f ur bdy, t. Mre than half f ur ttal bdy weight is water.
Our bdy lses water whenever we exercise r g t the tilet. That?s why we need t drink plenty f water every day. We drink water. We use it t ck, clean, and carry waste ut f ur hmes. Farmers use it t grw vegetables and crps like rice and crn; factries use it t make prducts.
Since the 1950s, the amunt(数量)f water peple use has increased by three times. But the water supply(供应)hasn?t. Scientists wrry that sn there wn?t be enugh water fr us, as well as fr the animals and plants that share ur wrld. What can we d t help? Use water wisely.
Having enugh water isn?t ur nly prblem.We als need it clean.
Right nw, ships and factries are putting wastes int seas, rivers and s n. Even chemicals that farmers use are running int rivers and lakes. All this pllutin can make the water dangerus t drink. It can als harm fish and ther water-living lives.
We must d smething t stp pllutin. It?s the best way t prtect ur wrld?s mst valuable natural resurce(资源).
44.Hw many imprtant areas f water are mentined in Paragraph 1?
A.One.B.Tw.C.Three.D.Fur.
45.The underlined sentence “We als need it clean” in Paragraph 4 means “ ”.
A.We als need water t wash things
B.We als need water that lks clean
C.We als need t keep water clean
D.We als need t discver clean water
46.This passage was written t .
A.ask peple t value water
B.advise peple t drink mre water
C.intrduce the uses f water
D.describe the situatin f water supply
C
INTRODUCTION
It?s hard t believe that I wrte Number the Stars mre than twenty years ag. It seems like yesterday that I answered the phne n a snwy January mrning and received the news that it had wn the 1990 Newbery Medal(美国纽伯瑞儿童文学奖).
...
I think readers f every age may match themselves with the imprtant persns in the bks they lve and ask themselves:Wuld I have dne that? What chice wuld I have made?
And ten—the age f Annemarie in Number the Stars—is an age when yung peple are beginning t develp a strng set f persnal ethics(道德观;价值观). are beginning t realize that the wrld they live in is nt always gd and safe.
S they fllw a stry abut a ten-year-ld girl wh is caught in a dangerus situatin, and she must make decisins. Yung readers becme cheerful when Annemarie takes a deep breath, enters the wds, faces the danger, stands up t the enemy and wins her victry.
...
Tday, the bk has been published in many cuntries and translated int many languages. It fund its way int the hands and hearts f children wh had read abut but never experienced war. d change lives, I knw; and many readers have tld me that Number the Stars changed theirs when they were yung, that it made them think abut bth cruelty(残酷;残忍) and curage. “It was smething that shaped my idea f hw peple shuld be treated,” wrte a yung wman recently, telling me abut her wn furth-grade experience with the bk.
The Danish friend wh first tld me the stry f her childhd, and wh became the Annemarie in my bk, is an ld wman nw. S am I. We bth lve thinking f the children reading the stry tday, cming t it fr the first time and realizing that nce, fr a shrt time and in a small place, a grup f prejudice-free(不存偏见的)peple created a tuching stry f lve and kindness twards thers.
Lis Lwry
47.What is the name f the bk and wh is the writer?
A.Number the Stars;Lis Lwry.B.Newbery Medal;Lis Lwry.
C.Number the Stars;Annemarie.D.Newbery Medal;Annemarie.
48.Which f the fllwing is TRUE abut Annemarie?
A.She called a writer n a snwy January mrning.
B.She became cheerful after she read the bk.
C.She was a gd friend f a Danish wman.
D.She experienced many difficulties in a war.
49.Many yung readers tld the writer that the bk made them think abut .
A.ethics and friendshipB.enemy and victry
C.cruelty and curageD.life and memries
50.What can we knw frm this Intrductin?
A.The bk is abut a stry f the writer?s wn child experience.
B.The bk is well-received and ppular arund the wrld.
C.The Intrductin is written in the vice f the third persn.
D.The Intrductin is cmplete and we can read all f it.
第二节:根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。(共5小题,计5分)
D yu knw the reasn why we feel tired in the middle f a class? Maybe yu wuld say it is because the teacher?s class is bring. 51 Perhaps this is smething yu have nt paid enugh attentin t r nt yet nticed.
Purpse f sleep
52 Sleep helps ur bdy heal(修复), grw, and stay healthy. It als gives us energy, s we can be active all day. Dctrs and health scientists say: When yu clse yur eyes and need t rest, sleep is just the very best! This is mre than advice.
Sleep time
Enugh sleep is imprtant t us. Hw much sleep d we need? New-brn babies sleep mst f the time. They can sleep 20—22 hurs a day. Children need 10—12 hurs f sleep a day. Teenagers need 8—10 hurs f sleep a day because they need lts f energy t grw int their adult(成人的)bdies. Grwn-ups usually need 6—8 hurs f sleep t keep active. 53 That is why ld peple sleep less than yung peple.
Interesting facts
Almst everyne has their dreams while they sleep, but nt all f them can tell their dreams clearly when they wake up. 54 Mre surprisingly, sme may even get up in their dreams and walk arund. This is called “sleepwalking”. Are yu a sleepwalker? Or, is there a sleepwalker arund yu?
55
It?s nt just peple that lve t snze(打盹). In fact, many animals have unusual r surprising sleeping habits. Sme animals, such as bears and hedgehgs, sleep all thrugh winter. The swift is a very fast bird that can sleep while it flies! Cute kalas sleep arund 18 hurs a day. Giraffes dn?t need much sleep at all. They usually sleep standing up.
A.Sleepy animals
B.Why d we need sleep?
C.Sme peple talk in their dreams.
D.Hwever, the real reasn is prbably that we dn?t have enugh sleep.
E.The lder yu get, the less sleep yu will need.
F.Sme peple never dream while they sleep.
G.Clever animals
Ⅴ.完成句子:根据所给汉语意思, 用单词或短语完成下列英文句子。(共5小题,计10分)
56.我希望学生们的书包轻一点儿。
I hpe students? will be lighter.
57.李琳给朋友送了一个红色的杯子作为礼物。
Li Lin gave her friend a as a present.
58.他们俩出生在同一天。
They were brn .
59.她已吃完了盘子里所有的食物。
She has already all the fd n her plate.
60.世界人民将永远深切怀念杂交水稻之父袁隆平。
The peple arund the wrld will Yuan Lngping, the Father f Hybrid Rice frever.
Ⅵ.短文填空:用方框中所给单词的适当形式填空,使短文完整正确。(每个单词限用一次,每空限填一个单词。)(共10小题,计10分)
he win hur swim father
seem unlucky hard talk end
Rick Hyt is American and he has a gd jb at the University f Bstn. 61 , he is in a wheelchair because f a serius illness. He can?t 62 either and he uses a cmputer fr daily cmmunicatin. Hwever, he lves sprt and wants t challenge 63 in triathln—a sprts cmpetitin in which peple swim 4 kilmeters, bike 180 kilmeters and run 42 kilmeters. Hw can Rick make it as he can?t swim, bike r run and sits in a wheelchair? It 64 t be an impssible dream fr him t realize.
Rick can take part because he des it with his father, Dick Hyt. Tgether, they try their best t d the 65 task in their life—in the running, his father pushes him in his wheelchair; in the 66 , Rick lies in a small bat and his father swims and pulls him; in the cycling, Rick sits in a special seat n the frnt f his 67 bike.
Of curse, the Hyts never win the race. The winner f a triathln usually cmpletes it in abut nine 68 , but the Hyts take much lnger time. “That?s right,” says the father. “We never win. But Rick and I think that we always win.”
Nw the father and sn have 69 the respect(尊敬)f many peple. And their 70 curage als sets a gd example fr us all. It sends ut the message hw imprtant it is that we believe in urselves and never give up.
Ⅶ.任务型阅读:阅读下面材料,根据材料内容,完成下列各题。(共5小题,计10分)
71.What des the writer mstly want t express in his pster?
He calls n(号召) the readers t COVID-19.
72.Wh created this pster and what was it made as?
It was created by a student named and made as his .
73.Which wrd means “疫苗” in the passage?
It is .
74.What shuld cuntries d accrding t the student?
He thinks cuntries shuld .
75.Why did the student chse the WHO?s wrds fr his pster?
He wanted t let readers knw the f COVID-19.
Ⅷ.补全对话(共5小题,计5分)
根据下面对话中的情境, 在每个空白处填入一个适当的语句, 使对话恢复完整。
A:Mrning, Wang Juan.
B:76. .
A:I heard that yu wn the first prize in the speech cmpetitin f yur schl. Cngratulatins!
B:Thank yu. Yu knw July 1 this year is ur Party?s 100th birthday. We had the speech cmpetitin fr celebrating it.
A:77. ?
B:Yes. I talked abut the histry f ur great Party and the great changes in ur cuntry in my speech.
A:Oh, we are als preparing sme activities fr it these days.
B:78. ?
A:An art shw and a big singing cmpetitin.
B:A singing cmpetitin?79. ?
A:It will be held n the afternn f June 25.
B:I like singing. Can I watch it?
A:80. . Yu can cme t my schl at 2:00 that day and we?ll meet at the schl gate.
B:OK. See yu then.
A:See yu.
Ⅸ.书面表达(共1题,计15分)
人们常说:“服务他人,快乐自己。”你准备利用即将到来的暑假去社区做一些服务工作。请根据以下表格提示内容,给你们学校的英文报写一篇短文, 介绍你的计划。
要求:
1.参考表格提示内容,可适当发挥;
2.语句通顺,意思连贯,书写工整;
3.文章不得出现你的任何真实信息(姓名、校名和地名等);
4.词数:不少于70 词。(开头和结尾已给出,但不计入总词数。)
As we all knw, “Serving thers can bring us happiness.” Summer hliday is cming. I?ll





I?m sure I?ll have a meaningful hliday this summer.
第二部分
Ⅲ.完形填空
第一节
[语篇解读] 本文是记叙文。文章讲述了一位老妇人在河边捡到一个巨大的橘子,里面蹦出了一个可爱的男孩。男孩长大后,变得非常强壮、勇敢,并和他的动物朋友们一起成功地赶走了盗贼,被村民称为英雄。
21.C 本题考查动词时态。由前面的lived可知,此处应用过去的时态,此处指“当她看见大橘子时正在洗衣服”,故此处用过去进行时,故选C。
22.B 本题考查动词词义辨析和非谓语动词。根据decide t d,可排除A、C;根据语境可知,此处是带回家,故选B。
23.C 本题考查宾语从句。宾语从句应该用陈述句语序,排除B、D;分析选项,选项A中动词d后缺宾语,选项C中what可以作d的宾语,故选C。
24.A 本题考查形容词。many修饰可数名词复数;much修饰不可数名词;little修饰不可数名词,表示几乎没有;few修饰可数名词,表示几乎没有。根据设空后things可排除B、C。根据语境可知选A。
25.A 本题考查冠词。设空后的bx是可数名词的单数形式,在这里表泛指,需要用不定冠词修饰;bx以辅音音素开头,故选A。
26.C 本题考查代词。each f后接代词的宾格形式,故选C。
27.D 本题考查连词。when意为“当……的时候”,符合语境,故选D。
28.C 本题考查介词。with the help f在……的帮助下,为固定短语,故选C
29.B 本题考查动词的时态和语态。根据主句的动词returned可知此处用一般过去时,从句中that指代the valuable things,与steal之间是被动关系,故用一般过去时的被动语态,故选B。
30.D 本题考查时态和主谓一致。根据从句中动词cheered和called可以判断设空处用一般过去时,主语All the peple为复数,故选D。
第二节
[语篇解读] 本文是记叙文。Remy的妈妈在它出生前就生病了,不能照顾Remy。幸运的是,Remy找到了Madu作为它的养母。
31.A 根据下句S he needed a fster mther t take care f him.可以判断,答案为A。
32.D 根据cares fr the child fr a perid f time just as what she wuld d t her wn child可知,此处指把别人的孩子带回家,故选D。
33.C 根据r its parents becme t...可知选C。
34.A 根据上文语境,结合可以判断,此处表示太虚弱而不能照顾……,故选A。
35.B 根据文章内容可知,本文是在讲述rangutan,结合图示可知是猩猩,故选B。
36.B 根据语境可以判断,此处表示失去能力,故选B。
37.D 根据语境可知,如果它们找不到养母,就会面临一个悲伤的结局,故选D。
38.D 根据下文But可知,此处表示她从来没有自己的孩子,故选D。
39.B 根据下文 first sight可知,Remy去见Madu,故选B。
40.A 空前的taught Remy what t eat和空后的als shwed him hw t hang and climb是并列关系。故选A。
Ⅳ.阅读理解
第一节
A
[语篇解读] 本文是记叙文。文章讲述八岁的Cindy由于父亲的工作变动,需要到另外一个地方上学。当她到达新学校之后,她的老师为她详细介绍了新学校的课程和活动安排。
41.B 细节理解题。根据第二段中老师说的第二句话Let me tell yu what we d in ur secnd-grade class.可知选B。
42.C 细节理解题。根据老师的介绍Then we g t learning centers. There yu a game...可知答案,故选C。
43.A 推理判断题。根据文章内容可知,老师对新的学校进行了详细的介绍,可以判断老师很友好。故选A。
B
[语篇解读] 本文是一篇说明文,文章告诉我们水的重要性和作用及目前人类面临的水资源短缺和水污染问题。
44.B 细节理解题。第一段中提到了水对地球和我们的身体的重要性。故选B。
45.C 推理判断题。根据下文可知,水资源受到了污染,由此可知,我们应该保持水干净,故选C。
46.A 推理判断题。文章首先讲述了水的重要性,然后提出我们面临水资源的短缺,最后指出我们必须做些事情防止水污染。故文章的目的是让人们珍惜水资源。故选A。
C
[语篇解读] 本文是说明文。Lis Lwry介绍了自己写的书Number the Stars以及这本书对读者产生的一些影响。
47.A 细节理解题。 根据文章的第一句和最后的落款可以判断答案为A。
48.D 细节理解题。根据文章第四段第二句可以判断答案为D。
49.C 细节理解题。根据第五段中that it made them think abut bth cruelty and curage可知选C。
50.B 推理判断题。根据第五段第一句Tday, the bk has been published in many cuntries and translated int many languages.可以判断,这本书非常受欢迎。故选B。
第二节
[语篇解读] 本文是说明文。文章介绍了有关睡眠的一些知识。
51.D 根据上句“你或许会说这是因为老师的课程无聊”和下句“这或许是某件你没有足够留意或注意到的事”可知,设空处表示转折。故选D。
52.B 根据本段小标题Purpse f sleep可知本段是在解释睡觉的原因。故选B。
53.E 根据上文可知随着年龄的增长,睡眠时间在减少。设空处起承上启下的作用。故选E。
54.C 根据本段小标题Interesting facts和设空处前后内容可知,本段在描述一些人在睡梦中会做的一些有趣的事,故选C。
55.A 设空处是下段的标题。下段内容描述的是关于一些动物的睡觉习惯,故选A。
Ⅴ.完成句子
56.bags/schlbags(schl bags)/backpacks 考查名词。根据关键词students?可知“书包”用复数形式。
57.red cup/glass 考查名词短语。根据冠词a可知,此处名词用单数形式。
58.n the same day/date 考查固定短语。在同一天,介词用n。
59.eaten up/finished (eating)/finished ff/up 考查动词(短语)和动词时态。根据has already可知动词要用过去分词。
60.deeply(或greatly) remember/miss 本题考查动词和副词。表示“怀念”可以用remember/miss,副词修饰动词。
Ⅵ.短文填空
[语篇解读] 本文是记叙文。文章讲述了Rick Hyt虽然身体有残疾,但他在父亲的鼓励、帮助下,参加体育竞赛的故事。
61.Unluckily 文章前一句提到Rick Hyt有一份好工作,本句却说他因为严重疾病只能坐轮椅,这对他来说应该是不幸的事,此空位于句首,应用副词修饰后面的句子,句首字母大写,故填Unluckily。
62.talk 根据下文uses a cmputer fr daily cmmunicatin可知,此处指他不能够说话,情态动词后接动词原形,故填talk。
63.himself challenge neself挑战自己, neself应和主语he保持人称一致,故填himself。
64.seems 根据前一句可知,以Rick Hyt的身体条件,想挑战triathln似乎是不可能的。 seem t be似乎是,主语为单数,故填seems。
65.hard/hardest 根据语境可知,他们做的任务很困难,故用hard或hardest。
66.swimming 根据下文in a small bat可知用swim;这里与上文的in the running和下文的in the cycling是并列关系,故也用动名词形式。
67.father?s 根据语境可知,他坐在父亲自行车前边的一个特殊的位置。注意用名词的所有格。
68.hurs 根据下文but the Hyts take much lnger time可知此处表示花费9个小时。故填hurs。
69.wn win the respect赢得尊重。根据设空处前的have可知,句子的时态是现在完成时,要用win的过去分词形式wn。
70.endless 空后为名词,需用形容词修饰,endless curage指无尽的勇气,故填endless。
Ⅶ.任务型阅读
[语篇解读] 本文是一则海报,介绍了新冠肺炎的一些知识并号召我们共同抗击疫情。
71.stp/fight(against)/prevent/avid或be/stay/keep away frm 根据海报的标题可以判断答案。
72.Xue Mingyu;hmewrk 根据海报右下角的署名可知答案。
73.vaccine 根据HAVE VACCINE, STAY SAFE可以推断,vaccine的意思为“疫苗”。
74.wrk tgether 根据海报正文的最后一句T fight the virus, cuntries need t wrk tgether.可以判断出答案。
75.fact(s)/infrmatin/situatin(s) 根据海报的正文内容可知,WHO的话是有关COVID-19的一些具体信息的。注意fact与situatin是可数名词,设空处前有定冠词the,故用单复数均可;infrmatin是不可数名词。
Ⅷ.补全对话
76.Gd mrning/... 根据上文Mrning可知是在互致问候。
77.Can/Culd yu tell me (mre) abut yur speech/what yur speech was abut/... 根据下句B所谈论的内容是关于自己的演讲的可知,此处是想了解演讲情况。
78.What activities (are they/are yu preparing) 根据下文A的回答可知,此处是在询问什么活动。
79.When will yur singing cmpetitin/it be held 根据下文的回答可知,此处是在问歌唱比赛的时间。
80.Sure/N prblem/Of curse/... 根据下句Yu can cme...可知A同意对方的请求。
Ⅸ.书面表达
写作提示
1.体裁:说明文;
2.时态:主体时态为一般将来时;
3.人称:第一人称;
4.要点:不同地点的不同活动。
参考范文
As we all knw, “Serving thers can bring us happiness.” Summer hliday is cming. I?ll d sme service in my cmmunity t make it better. First, I?ll g t ur cmmunity center t help and cheer up the ld peple. Fr example, I can sing sngs r tell them sme interesting stries. Secnd, I?m ging t hand ut the leaflets n COVID-19 at ur cmmunity hspital r ther places. Next, I?m als planning t pick up and srt rubbish with my friends in ur cmmunity park. What?s mre, I?ll help the kids with their lessns and lk after them as well.
I?m sure I?ll have a meaningful hliday this summer.
9
2021年陕西省初中学业水平考试
(满分:120分 考试时间:120分钟)
Places
Activities
Cmmunity center
help the ld, sing sngs, tell stries, ...
Cmmunity hspital(s)
hand ut the leaflets(宣传册)n COVID-19, ...
Cmmunity park(s)
pick up rubbish, water flwers, ...
...
...
9 2021年陕西省初中学业水平考试
21
22
23
24
25
26
27
28
29
30
C
B
C
A
A
C
D
C
B
D
31
32
33
34
35
36
37
38
39
40
A
D
C
A
B
B
D
D
B
A
41
42
43
44
45
46
47
48
49
50
B
C
A
B
C
A
A
D
C
B
51
52
53
54
55
D
B
E
C
A