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2017高考答案2卷,2017高考卷二

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简介1.2017高考全国二卷化学26题第三问为什么没有氢氧化镁2.2017广西崇左高三语文试卷及参考答案(2)高考复习要注意的七大题型:第一:高考数学中有函数、数列、三角函数、平面向量、不等式、立体几何等九大章节主要是考函数和导数,这是我们整个高中阶段里最核心的板块,在这个板块里,重点考察两个方面:第一个函数的性质,包括函数的单调性、奇偶性;第二是函数的解答题,重点考察的是二次函数和高次函数,分函数和

1.2017高考全国二卷化学26题第三问为什么没有氢氧化镁

2.2017广西崇左高三语文试卷及参考答案(2)

2017高考答案2卷,2017高考卷二

高考复习要注意的七大题型:

第一:高考数学中有函数、数列、三角函数、平面向量、不等式、立体几何等九大章节

主要是考函数和导数,这是我们整个高中阶段里最核心的板块,在这个板块里,重点考察两个方面:第一个函数的性质,包括函数的单调性、奇偶性;第二是函数的解答题,重点考察的是二次函数和高次函数,分函数和它的一些分布问题,但是这个分布重点还包含两个分析就是二次方程的分布的问题,这是第一个板块。

第二:平面向量和三角函数

重点考察三个方面:一个是划减与求值,第一,重点掌握公式,重点掌握五组基本公式。第二,是三角函数的图像和性质,这里重点掌握正弦函数和余弦函数的性质,第三,正弦定理和余弦定理来解三角形。难度比较小。

第三:数列

数列这个板块,重点考两个方面:一个通项;一个是求和。

第四:空间向量和立体几何

在里面重点考察两个方面:一个是证明;一个是计算。

第五:概率和统计

这一板块主要是属于数学应用问题的范畴,当然应该掌握下面几个方面,第一……等可能的概率,第二………事件,第三是独立事件,还有独立重复事件发生的概率。

第六:解析几何

这是我们比较头疼的问题,是整个试卷里难度比较大,计算量最高的题,当然这一类题,我总结下面五类常考的题型,包括第一类所讲的直线和曲线的位置关系,这是考试最多的内容。考生应该掌握它的通法,第二类我们所讲的动点问题,第三类是弦长问题,第四类是对称问题,这也是2008年高考已经考过的一点,第五类重点问题,这类题时往往觉得有思路,但是没有答案,当然这里我相等的是,这道题尽管计算量很大,但是造成计算量大的原因,往往有这个原因,我们所选方法不是很恰当,因此,在这一章里我们要掌握比较好的算法,来提高我们做题的准确度,这是我们所讲的第六大板块。

第七:押轴题

考生在备考复习时,应该重点不等式计算的方法,虽然说难度比较大,我建议考生,采取分部得分整个试卷不要留空白。这是高考所考的七大板块核心的考点。

2017高考全国二卷化学26题第三问为什么没有氢氧化镁

 英语答案及评分参考

 第一部分:听力

 1-5 BCACB 6-10 ACABC 11-15 BACAC 16-20 BACAB

 听力原文:

 Text 1

 M: Lucy, would you like to have lunch with me tomorrow?

 W: Oh, I?d really love to, but I have an appointment with my dentist at 11:30. Thanks for inviting me.

 Text 2

 W: Peter, how is the weather now? Is it still raining?

 M: No, but there?s still lots of clouds. The weatherman said the sun wouldn?t come out until next week.

 Text 3

 M: I?m sorry I was late for class today, Dr. Simpson.

 W: Well, I?ll let it go this time. But you saw it disturbed the rest of the class.

 M: Yes, I realized that. I won?t let it happen again.

 Text 4

 W: Hi, Mike. Listen, I?m coming back this afternoon, and I?ll take a bus from the railway station. So, you don?t need to come and pick me up.

 M: OK, take care, and see you soon.

 Text 5

 M: Jenny, there?s an opening for an assistant manager in our company. You should give it a try.

 W: Thank you George, but I?ve decided to travel a bit before finding another job.

 Text 6

 M: By the way, do you know what time it is?

 W: Well, it?s a quarter to two.

 M: Oh, I?ve got to go.

 W: See Linda in the library?

 M: No. Actually I?m going to meet with Professor Smith at ten past two. You may continue our project discussion with Michael.

 W: All right.

 Text 7

 W: Harry, guess what? I?ve just received an email from Pamela. She and Peter are coming down to see us this weekend.

 M: Oh, that?s good news! We haven?t seen them for ages.

 W: Yeah. The last time we met them was at our wedding three years ago.

 M: Did Pamela mention how long they?ll stay?

 W: About one week.

 M: Great! I can?t wait to show them around our new house.

 W: Me too. We haven?t had any guests since we moved in here. If the weather is fine, we can have a barbecue in the garden.

 M: Good idea. I?ll go to the market tomorrow to buy all the things we?ll need.

 Text 8

 W: Hello, everyone. Welcome to our program. Today, we are fortunate to have a special guest with us. Some of you may have heard of him before. He?s an artist. His works have received many prizes and have been shown in over one hundred exhibitions across the country ? Los Angeles, New York, Philadelphia, to name just a few. His name is Chris Cucksy. So Chris, tell us a bit about yourself.

 M: Well, I was born in Springfield, Missouri, and grew up in Kansas. I didn?t come from a family with wealth or position, but I did manage to get a master?s degree in fine arts.

 W: When did you first start to make art? And what was the turning point in your life that made you an artist?

 M: I always liked drawing as early as I can remember, so right from then, I knew what I was going to be: an artist.

 W: What is it that always inspires you to create?

 M: Nature is the biggest inspiration. I?m always inspired by things of beauty and harmony.

 Text 9

 M: You must be pretty excited about your trip to Europe, Dorothy. When are you leaving?

 W: In just two weeks, and I am excited. I?ve been looking forward to this training program for a long time. But there are still a few things I need to do before I go.

 M: Like what?

 W: Like renewing my passport and figuring out what to do with my apartment while I?m gone.

 M: You are not going to give it up, are you?

 W: No way! I?ll never find another apartment like it around here. But I don?t like the idea of paying three months for an empty apartment, either. So, I?m looking for someone to take it while I?m away.

 M: Um, let me think. Oh, I know just a person. An old colleague of mine, Jim Thomas. He is coming here to do some research this summer, from June to August.

 W: Well, that?s exactly when I?ll be away!

 M: Tell you what: I?ll be calling Jim late this week anyway, so I?ll mention it to him.

 W: Well, thanks, Bill.

 Text 10

 W: I hope I?ve given you a clear idea of the schedule for your London weekend. And, before I finish, let me just give you some advice which should make your stay more enjoyable. Firstly, please do remember to put on some comfortable shoes. London is a big place, and whatever you do, you?ll find yourself doing quite a lot of walking. So, comfortable shoes are really necessary. And secondly, let me ask you to please look after your money. Keep it safe at all times, and then you will not have any unpleasant accident, which could ruin your whole weekend. You?ll find a copy of your weekend?s schedule in your room. Take a look at it, and make sure you?re clear about everything. Well, that?s all from me for now. Go and leave your luggage in your rooms. I?ll be seeing you here again in fifteen minutes. Goodbye for now!

2017广西崇左高三语文试卷及参考答案(2)

26.(14分)水泥是重要的建筑材料。水泥熟料的主要成分为CaO、SiO2,并含有一定量的铁、铝和镁等金属的氧化物。实验室测定水泥样品中钙含量的过程如图所示:

回答下列问题:

(1)在分解水泥样品过程中,以盐酸为溶剂,氯化铵为助溶剂,还需加入几滴硝酸。加入硝酸的目的是__________,还可使用___________代替硝酸。

(2)沉淀A的主要成分是_________,其不溶于强酸但可与一种弱酸反应,该反应的化学方程式为_____________。

(3)加氨水过程中加热的目的是___________。沉淀B的主要成分为_____________、____________(填化学式)。

(4)草酸钙沉淀经稀H2SO4处理后,用KMnO4标准溶液滴定,通过测定草酸的量可间接获知钙的含量,滴定反应为:MnO4-+H++H2C2O4→Mn2++CO2+H2O。实验中称取0.400 g水泥样品,滴定时消耗了0.0500 mol·L-1的KMnO4溶液36.00 mL,则该水泥样品中钙的质量分数为______________。

答案:

(1)将Fe2+氧化为Fe3+?;?双氧水

(2)?SiO2?;SiO2+4HF=SiF4↑+2H2O

(3)促进Fe3+、Al3+水解;Fe(OH)3?、 Al(OH)3

(4)?5Ca2+~5H2C2O4~2KMnO4

n(KMnO4)=0.0500mol/L×36.00mL=1.80mmoln(Ca2+)=4.50mmol

水泥中钙的质量分数为4.50mmol×40.0g/mol/0.400g=45.0%

解释:因为一般情况下Mg2+开始沉淀需要pH>8.

金属离子:沉淀形式,开始沉淀pH,完全沉淀pH

Mg2+:Mg(OH)2,8.10,9.43

Fe3+:Fe(OH)3,1.47,2.80

Al3+:Al(OH)3 ,4.20,5.37

2017年广西崇左高三语文模拟试卷参考答案 第Ⅰ卷(阅读题,共70分)

 7.(10分)翻译:

 (1)(5分)正值前骁卫将军王守恩在家服丧,张从恩就把后事委托给他,逃走了。(?会?委?遁?各1分,句意信达2分)

 (2)(5分)杀掉契丹使者而推举王守恩,是为国家社稷着想。现在如果害了他人,自己取得好处,不是我本来的心愿?(?盖?计?宿心?各1分,句意信达2分)

 8.(5分)?数?说明数量之少,已不再是当年成林成片的样子;(1分)?残?写出了杨柳残败不堪,已不再是当年郁郁葱葱、浓阴蔽日的样子。(1分)?数?残?从数量和状态两方面,(1分)写出了隋宫外面的杨柳残败的样子,(1分)从而映衬出隋宫的破败、倾圮、荒芜的景象。(1分)(答得不全酌情扣分)

 9.(6分)第一首诗中作者极力渲染隋宫外杨柳残败衰颓的样子,借以衬托隋宫的破败,以哀景写哀情;(2分)而第二首诗中,作者极写宫树的郁葱茂盛、景色迷人,以宫树的葱郁茂盛来表现隋宫的破败荒

 芜,以乐景写哀情。(2分)这两首诗都用了借景抒情的表现手法,同样是写树,虽一残败衰败,一

 葱郁茂盛,但都渲染了隋宫的破败荒芜,表达了作者心中的兴衰之叹。(2分)

 10.(每空1分,共6分)

 (1)众女嫉余之蛾眉兮 谣诼谓余以善*

 (2)后人哀之而不鉴之 亦使后人而复哀后人也

 (3)人不寐 将军白发征夫泪

 11.(25分)

 (1)(5分)E D (答E给3分,答D给2分,答A给1分,答B、C不给分。回答三项或三项以上,不给分。)

 解析A项中?表明?我?有点神经质?错。B项中?大胡子?救了?我?是为了向?我?宣泄大衣被水冲走的不满?错。C项中?我?的忏悔语义过重,应当是?自责?;?埋下伏笔?应改为?作了铺垫?。

 (2)(6分)①大衣被水冲跑是误会加深的结果,推动了小说情节的发展;②为下文?我?的灵魂得到净化并为?大胡子?的妻子免费做手术作了铺垫;③激发读者的阅读兴趣。(每答出一点给2分,意思答对即可)

 观点二:小说主人公是?我?。理由:①从情节结构看:?我?到青石镇给患者做手术,途中乘坐人力三轮车产生误会,?我?在逃跑途中遇险,?我?在医院手术室休息时得知真相,?我?免费为?大胡子?的妻子做手术。这些都是围绕?我?展开的。②从主题看:本文表现的是人性的善良与自我反思精神的可贵,这一点正是通过?我?的免费手术体现的。③从人物关系看:在?我?和?大胡子?两人的对比中,突出了?我?人性的弱点,深化了主题。(观点明确2分,分析合理、充分6分)

 12.(25分)

 (1)(5分)E D (答E给3分,答D给2分,答A给1分,答B、C不给分。回答三项或三项以上,不给分)

 解析A项中?已有无人替代的地位?分析偏离原文相关语句的意旨,原文是说当时兵荒马乱,堪用之人不多。B项中?原本志在?概括不当。 C项中?最初下令种树,是为了?没有想到分析有误。

 (2)(6分)①以此引出传主,能给人鲜明突出的印象;②诗意地评价左公当年种树的深远影响和巨大意义,寄寓作者无限崇敬之情;③设置悬念,吸引读者,关注后文,从而引导读者深刻把握文章的主旨。(每答出一点给2分,意思答对即可)

 (3)(6分)①选准树种,因地制宜种植;②宣传种树意义,颁布护林措施,并严格执行;③种树是他巡视地方的必选对象,从而引领出一种种树护林的良好风气。(每答出一点给2分,意思答对即可)

 (4)(8分)①科举受阻,转而研究农桑水利等实用之学,让他获得一种观照外物的特殊视角;②早年在江南生活,那里的生态环境给他留下深刻的印象,而x疆荒凉荒寒荒漠化的环境,与其形成巨大反差,刺激他产生改变环境的愿望;③他种树是真有兴趣,真去研究,躬身参与,强力推行;④他作为一个政治家,是非常有远见的,正是这种远见,让他的作为具有深远而积极的影响。(每答出一点给2分,意思答对即可)

 第Ⅱ卷 (表达题,共80分)

 13.(3分)B 解析指日可待:为期不远,不久就可以实现。

 倚马可待:倚在即将出发的战马前起草文件,可以等着完稿。比喻文章写得快。

 拭目以待:拭,擦;待,等待。擦亮眼睛等待着。形容期望或等待某件事情的实现。注意三个成语各自的搭配对象。

 14.(3分)B 解析A.句式杂糅,删去?顺利回国?; C.语序不当,?将在2020年计划?应改为?计划将在2020年?;D.防止?与?免遭?否定不当,?免遭?应改为?遭到?或?受到?。

 15.(3分)D

 16.(5分) ①一是文化的教养;②二是社会的担当;③三是自由的灵魂。(意思合理即可。写出一句给1分,写出两句给3分,写出三句给5分)

 17.(6分)构图要素:一双伸开的手掌捧着一颗长出枝叶的心脏,一只手掌的大拇指上站着一只小鸟,小鸟望向初生的枝条。(3分,每点1分)

 寓意:小心呵护,让心灵焕发生机,给人以新的希望。(3分,?呵护?生机?希望?每个关键词1分)

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