2017高考试卷全国二卷,2017高考二卷答案

1.2017高考全国二卷化学26题第三问为什么没有氢氧化镁

　考生能否在英语科考试中取得高分取决于阅读理解的成绩。一起做一下阅读理解训练吧。下面是我为大家推荐的2017高考英语真题分类汇编阅读理解真题及答案，仅供大家参考!

　2017高考英语真题分类汇编阅读理解真题及答案一

　In one way of thinking, failure is a part of life. In another way, failure may be a way towards success. The ―spider story‖ is often told. Robert Bruce, leader of the Scots in the 13th century, was hiding in a cave from the English. He watched a spider spinning a web(蜘蛛织网). The spider tried to reach across a rough place in the rock. He tried six times without success. On the seventh time he made it and went on to spin his web. Bruce is said to have taken heart and to have gone on to defeat the English? Edison, the inventor of the light bulb, made hundreds of models that failed before he found the right way to make one.

　So what? First, always think about your failure. What caused it? Were conditions right? Were you in top from yourself? What can you change so things will go right next time?

　Second, is the goal(目标)you're trying to reach the right one? Try to do some thinking about what your real goals may be. Think about his question, ?If I do succeed in this, where will it get meThis may help you prevent failure in things you shouldn't be doing anyway.

　The third thing to bear in mind about failure is that it's a part of life. Learn to ―live with yourself‖ even though you may have failed. Remember, ―You can't win them all.‖

　1.This passage deals with two sides of failure. In paragraph 1, the author talks mainly about ______ .

　A.the value of failur B.how people would fail

　C.famous failures　D.the cause of failure

　2.The underlined phrase?made it?means ______ .

　A.succeeded B.failed C.gave D.got

　3.The lesson the spider taught Robert Bruce seems ______ .

　A.productive　B.straight forward C.sorrowful D.deep

　4.The author tells you to do all things except ______ .

　A.The think about the cause of your failure

　B.to check out whether your goals are right for you

　C.to consider failure as a part or life

　D.to bear in mind that you will never fail in your life

　5.Which of the following is NOT true?

　A.Bruce and Edison were successful examples. B.Failure may be regarded as a way toward success.

　C.Edison learned a lot from the lesson the spider taught Robert Bruce.

　D.One may often raise a question whether his goals are worth attempting.

　2017高考英语真题分类汇编阅读理解真题及答案二

　In sport the sexes(性别)are separate. Women and men do not run or swim in the same races. Women are less strong than men. That at least is what people say. Women are called the weaker sex, or, if men want to please them, the fair sex. But boys and girls are taught together at schools and universities. There are women who are famous Prime Ministers, scientists and writers. And women live longer than men . A European woman can expect to live until the age of 74, a man only until he is 68.Are women's bodies really weaker?

　The fastest men can run a mile in under 4 minutes. The best women need 4.5 minutes. Women's time are always slower than men's, but some facts are a surprise. Some of the fastest women swimmers today are teenage girls. One of them swam 400 metres in 4 minutes 21.2 seconds when she was only 16.The first?Tartan?in film was an Olympic swimmer, Johnny Weissmuller. His fastest 400 metres was 4 minutes 49.1 seconds, which is 37.9 seconds slower than a girl 50 years later! This does not mean that women are catching men up. Conditions are very different now and sport is much more serious. It is so serious that some women athletes are given hormone (荷尔蒙)injections(注射). At the Olympics a doctor has to check whether the women athletes are really women or not. It seems sad that sport has such problems. Life can be very complicated(复杂的) when there are two separate sexes!

　1.Women are called the weaker sex because ______ .

　A.women do as much as men

　B.people think women are weaker than men

　C.sport is easier for men than for women

　D.in sport the two sexes are always together

　2.Which of the following is true?

　A.Boys and girls study separately everywhere. B.Women do not run or swim in races with men.

　C. Famous Prime Ministers are women .

　D.Men can expect to live longer than women in Europe.

　3.?That at least is what people say?means people ______ .

　A.say other things , too

　B.don't say this much

　C.say this but may not think so

　D.only think this

　4.What problems does sport have?

　A.Some women athletes are actually men.

　B.Some women athletes are give hormone injections. C.Women and men do not run or swim in the same races.

　D.It is difficult to check whether women athletes are really women.

　5.In this passage the author implies that ______

　A.women are weaker than wen , but faster

　B.women are slower than men, but stronger

　C.men are not always stronger and faster than women

　D.men are faster and stronger than women

　答案：BBCBC

　2017高考英语真题分类汇编阅读理解真题及答案三

　People bury treasure to stop other people from taking it. They choose a quiet place, dig a deep hole and bury the treasure in it. Then they make a map of where the treasure is or write down other clues(线索)that will help them or someone else to find it again.

　In Britain a few years ago; a writer wrote about some treasure that he had buried. He put clues in the story to help readers find it. Thousands of people hunted for the treasure. They dug holes all over Britain, hoping to find it.

　One of the most popular adventure stories ever written is Robert Louis Stephenson's ?Treasured Island?, an exciting story about a young boy, Jim Hawkins, who is captured by pirates and later finds some buried treasure.

　Then there is the true story about a man who had to travel overseas for a year. He did not trust banks, so he buried his life savings in a park. Then he went away. On his return, he went straight to the park. But the park was no longer there. In its place there was a huge building.

　And then there was the man who buried his savings, all in bank notes, in a waterproof(防水的) bag. When he dug it up years later, there was nothing left. Worms and insects had eaten the bag and everything in it.

　And of course, these are stories about people who bury things and either forget where they have buried them or lose the map.

　Although it is true that people sometimes lose their money because a bank fails, banks are still the safest place to keep our savings and treasures.

　1.People who bury treasure usually

　A.do not trust banks

　B.have a little money .

　C.want to live in a quiet place.

　D.expect to lose it

　2.The writer in Britain

　A.really had buried something.

　B.started a nationwide treasure hunt.

　C.had lost his treasure and wanted people to help him find it.

　D.caused trouble because people dug holes everywhere.

　3.―Treasure Island‖

　A.is a story about pirates.

　B.is about the adventures of Jim Hawkins.

　C.is the most popular story ever written

　D.is a well-known fairy tale.

　4.The man who buried his money in a park

　A.thought his money was safer there than in a bank.

　B.travelled on the sea for a year.

　C.got his life savings back again.

　D.stayed away longer than he expected.

　5 . From these stories we understand that

　A.we cannot trust banks.

　B.we should not trust anyone.

　C.a waterproof bag is not proof against worms and insects.

　D.insects eat anything.

　答案：ABBAC

2017高考全国二卷化学26题第三问为什么没有氢氧化镁

3．C（某形势用势代用世变化迅猛用急剧非急速用急遽由造用致延伸扩用至）

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5．A（B主客颠倒合逻辑改读者丽丝?门罗要陌C避免再发前矛盾D语序虽应运员前面）

课本知识是语文的基础，打好基础才能更好的学习它。有不少学生认为只要上课时专心听讲，勤记笔记，课后认真完成作业，再加上自觉复习，就能使成绩提高。

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