2017高考卷二答案？(1)(5分)如图，用隔板将一绝热汽缸分成两部分，隔板左侧充有理想气体，隔板右侧与绝热活塞之间是真空。现将隔板抽开，气体会自发扩散至整个汽缸。待气体达到稳定后，缓慢推压活塞，将气体压回到原来的体积。那么，2017高考卷二答案？一起来了解一下吧。
这是2017年全国二卷的航天部分的选择题，是对开普勒三定世戚律的考查；
答案：CD
解析：由于海王星从P运动到Q点的时间为T0/2,而谈返早海王星在近日点时，速度大，所以从P到M的用时小于T0/4，所以A错；从Q到N的阶段，只有万有引力做正功，重力势能和动能相互转化，机械能守恒，故B错；从P到Q是从近日点到远日点，所以速度逐渐减小，故C对；从M到N的过程中由M到含雀Q万有引力做负功，从Q到N万有引力做正功，故D对
26.（14分）水泥是重大轮要的建筑材料。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）在分裂薯解水泥样品过程中，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 ，4.20，肆仿者5.37
随着2017年高考数学科目的结束，家长和考生最想知道的无非是高考数学试题的答案，下面我为大家提供2017年全国高考二卷理科综合试卷的试题和答案，供家长和学生们参考，祝愿应届高考学子取得理想的成绩。
33.[物理——选修3–3](15分)
(1)(5分)如图，用隔板将一绝热汽缸分成两部分，隔板左侧充有理想气体，隔板右侧与绝热活塞之间是真空。现将隔板抽开，气体会自发扩散至整个汽缸。待气体达到稳定后，缓慢推压活塞，将气体压回到原来的体积。假设整个不漏气。下列说法正确的是________(选对1个得2分，选对2个得4分，选对3个得5分;每选错1个扣3分，最低得分为0分)。
A.气体自发扩散前后内能相同
B.气体在被压缩的过程中内能增大
C.在自发扩散过程中，气体对外界做功
D.气体在被压缩的过程中，外界对气体做功
E.气体在被压缩的过程中，气体分子的平均动能不变
(2)(10分)一热气球体积为V，内部充有温度为Ta的热空气，气球外冷空气的温度为Tb。已知空气在1个大气压、温度为T0时的密度为ρ0，该气球内、外的气压始终都为1个大气压，重力加速度大小为g。
一、1.instead2.allowed 3.licence 4.teenagers 5.silly
二、1.drive 2.doing 3.to swim4.to think 5.pierced6.wearing
三或手巧、1.should be asked 2.shouldbe allowed 3.shouldbe finished 4.can be used
四、薯肆1.should be allowed 2.don'tthink; aren’衫键t’tserious enough 3.seemed to 4.allow me to 5.spend time with
第Ⅱ卷(共 40分)
第四部分 任务型阅读
厅知请认真阅读下面短文槐绝，并根据所读内容在文章后表格中的空铅伏姿格里填入最适当的单词。注意：每空只填一个单词。(满分10分)
China’s admiration of outstanding scholars has turned the well-preserved childhood home of TuYouyou, the Chinese pharmacologist who won this year’s Nobel Prize in Physiology or Medicine, into a popular tourist destination.
Since it was announced on Monday that 84-year-old Tu had become the first Chinese citizen to win the international prize, her former home in the old town of Ningbo, Zhejiang province, has attracted visitors, especially parents and their children-even though it is not open to the public.
The house, which is for sale, is part of a complex of 37 traditional buildings, including several city-and district-level cultural relic preservation sites, that have been transformed into a high-end art and commercial zone.
Tu won the prize for developing a lifesaving malaria drug, artemisinin, a staple of traditional Chinese medicine, which has helped save millions of lives across the globe.
“There are continually parents taking their children, from infants in strollers to college students, to take photos in front of Tu’s former home. Security guards have been ordered to go on patrol around the clock,” said a sales person surnamed Zhao, from Ningbo Real Estate Inc Co.
Shanghai resident Xu Lingfei, who was on a trip to Ningbo, took her 9-year-old son to walk around the complex on Wednesday.
“Chinese people believe in exams and awards and have a strong preference for high performers. Taking children to visit the former dwelling places of celebrities is a way to inspire them to study harder,” Xu said.Something similar happened after Mo Yan won the Nobel Prize for literature in 2012.
Tourists started visiting Mo’s former home in rural Gaomi, Shandong province, in an endless stream starting the day after he won the prize. Some even plucked the radishes planted in front of the house and carted away some bricks.
Another site that has become a bigger tourist attraction these days because of Tu’s success is the Luofu Mountain scenic area in Huizhou, Guangdong province, where Ge Hong, a TCM master of the Eastern Jin Dynasty (AD 317-340) picked herbs, developed herbal medicines and wrote the classic Manual of Clinical Practice and Emergency Remedies.
After winning the Lasker Award in the United States in 2011, Tu said she and her team were inspired by Ge’s theory to solve the puzzle in getting artemisinin(青蒿素) from the herb Artemisia annual, also known as sweet wormwood.
A garden and a monument on Luofu Mountain celebrate Ge’s dedication. The mountain is home to 3,000 species of plants, including more than 1,200 with medicinal uses.
第五部分：词汇检测(根据所给的首字母，写出形式和意义都正确的词，每小题1分，共10分)
第一节 新概念III词汇检测：根据所给句义，进行同义缺词填空(首字母已给)(每空一词，每词1分)
76. If the money was not paid in time, the gangsters would quickly make a man go bankruptcy.
If the money was not paid p______, the gangsters would quickly put a man out of business.
77. Only the children who are very good at saving money can fill up a money box successfully.
Only very t_______ children manage to fill up a money box.
78. Its wool, whose colour had been changed into black, had been washed clean by rain!
Its wool, which had been d_______ black, had been washed clean by the rain!
79. It has been calculated roughly that the bridge parked with cars would still be carrying a third of its total capacity.
It has been e________ that if the bridge were parked with cars, it would still be carrying a third of its total capacity.
80. These peculiar forms not only seemed designed to give a shock to people’s emotion, but also to give them electric shocks as well!
These peculiar forms not only seemed designed to shock people e________, but to give them electric shocks as well!
第二节 课本词汇考查：根据所给首字母提示, 写出语法和意义上均正确的词。
以上就是2017高考卷二答案的全部内容，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。
