二.非选择题:本大题共4小题.共40分.16.化学与生活密切相关.人们常说:①高原上缺氧②生理盐水③胃酸过多④发酵粉中的小苏打.请用化学符号表示:①中的“氧 ▲ O2,②中的“盐 ▲ NaCl,③中的“酸 ▲ HCl,④中的小苏打 ▲ . “用微观的眼光看世界 是学习化学的重要方法.下图中气体A和气体B接触可发生反应.其微观过程如下所示. ①A中硫元素的化合价为 ▲ , ②该反应的化学方程式是 ▲ . ③将等体积的两只集气瓶分别盛满气体A.B.如图1所示进行实验.若相同条件下.气体的体积比等于分子个数比. 则图1实验中充分反应后.剩余的气体是 ▲ . 查看更多

 

题目列表(包括答案和解析)

选择填充题(本大题包括5小题,每小题2分,共10分。先在A、B、C中选择一个正确选项填在相应的括号里,然后在D处再补充一个符合题意的答案。每小题的选择与填充各1分)

在化学元素里,有4种元素约占人体的96%以上,被称为人体必需元素中的常量元素。下列元素肯定属于人体常量元素的是………………………………………………………………………………………………(     )

A、C                  B、Fe                 C、Zn               D、          

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第三部分:阅读理解(共20小题,共40分)
第一节(共15题, 每小题2分,满分30分)
阅读下列短文,从每题所给的四个选项(A,B,C和D)中,选出最佳选项。                              
A
What secret force drives us into the arms of one person, while pushing us away from another who might appear equally desirable to any fair observer? Of the many factors influencing our idea of the perfect mate, one of the most telling is our “lovemap” ---- a group of messages formed in our brains that describes our likes and dislikes.It shows our preferences in hair and eye color, in voice, smell, body build.It also records the kind of personality that attracts us, whether it’s the warm and friendly type or the strong silent type.In short, we fall for and go after those people who most clearly fit our lovemap.And this lovemap is determined in childhood.By age eight, the pattern for our ideal mate has already begun to float around in our brains.
The mother has special influence on her sons: she not only gives them clues to what they will find attractive in a mate, but also influences how they feel about women in general.So if she is warm and nice, her sons are going to think that’s the way women are.They will likely grow up warm and responsive lovers and also be helpful around the house.
Just as mothers influence their son’s general feelings toward women, fathers influence their daughter’s general feelings about men.If a father lavishes praise on his daughter and shows that she is a worthwhile person, she’ll feel very good about herself in relation to men.But if the father is cold, critical or absent, the daughter will tend to feel she’s not very lovable or attractive.
While the mother determines in large part what qualities attract us in a mate, it’s the father ----- the first male in our lives ----- who influences how we relate to the opposite sex.Fathers have a great effect on their children’s personalities and chances or marriage happiness.
56.What is the proper title for this passage?
A.Why we love who we love           B.What is a lovemap
C.Different influence from parents        D.Ideal mate in the mind
57.A perfect mate is a person who ____.
A.is fair to everyone               B.is the most desirable
C.fits one’s lovemap               D.is perfect in everything
58.If the husband hardly does any housework, ____.
A.his mother must be warm             B.his father must be critical
C.his mother must be cold               D.his wife can’t be attractive
59.The passage leads to a belief that ____.
A.parents’ personalities decides the children’s lovemap
B.mothers have no influence on daughters’ marriage life
C.fathers care more about children’s marriage happiness
D.mothers influence children’s choices of perfect mates

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第三部分:阅读理解(共20小题,共40分)
第一节(共15题, 每小题2分,满分30分)
阅读下列短文,从每题所给的四个选项(A,B,C和D)中,选出最佳选项。                              
A
What secret force drives us into the arms of one person, while pushing us away from another who might appear equally desirable to any fair observer? Of the many factors influencing our idea of the perfect mate, one of the most telling is our “lovemap” ---- a group of messages formed in our brains that describes our likes and dislikes.It shows our preferences in hair and eye color, in voice, smell, body build.It also records the kind of personality that attracts us, whether it’s the warm and friendly type or the strong silent type.In short, we fall for and go after those people who most clearly fit our lovemap.And this lovemap is determined in childhood.By age eight, the pattern for our ideal mate has already begun to float around in our brains.
The mother has special influence on her sons: she not only gives them clues to what they will find attractive in a mate, but also influences how they feel about women in general.So if she is warm and nice, her sons are going to think that’s the way women are.They will likely grow up warm and responsive lovers and also be helpful around the house.
Just as mothers influence their son’s general feelings toward women, fathers influence their daughter’s general feelings about men.If a father lavishes praise on his daughter and shows that she is a worthwhile person, she’ll feel very good about herself in relation to men.But if the father is cold, critical or absent, the daughter will tend to feel she’s not very lovable or attractive.
While the mother determines in large part what qualities attract us in a mate, it’s the father ----- the first male in our lives ----- who influences how we relate to the opposite sex.Fathers have a great effect on their children’s personalities and chances or marriage happiness.
56.What is the proper title for this passage?
A.Why we love who we love           B.What is a lovemap
C.Different influence from parents        D.Ideal mate in the mind
57.A perfect mate is a person who ____.
A.is fair to everyone               B.is the most desirable
C.fits one’s lovemap               D.is perfect in everything
58.If the husband hardly does any housework, ____.
A.his mother must be warm             B.his father must be critical
C.his mother must be cold               D.his wife can’t be attractive
59.The passage leads to a belief that ____.
A.parents’ personalities decides the children’s lovemap
B.mothers have no influence on daughters’ marriage life
C.fathers care more about children’s marriage happiness
D.mothers influence children’s choices of perfect mates

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第三部分:阅读理解(共20小题,共40分)
第一节(共15题, 每小题2分,满分30分)
阅读下列短文,从每题所给的四个选项(A,B,C和D)中,选出最佳选项。                              
A
What secret force drives us into the arms of one person, while pushing us away from another who might appear equally desirable to any fair observer? Of the many factors influencing our idea of the perfect mate, one of the most telling is our “lovemap” ---- a group of messages formed in our brains that describes our likes and dislikes.It shows our preferences in hair and eye color, in voice, smell, body build.It also records the kind of personality that attracts us, whether it’s the warm and friendly type or the strong silent type.In short, we fall for and go after those people who most clearly fit our lovemap.And this lovemap is determined in childhood.By age eight, the pattern for our ideal mate has already begun to float around in our brains.
The mother has special influence on her sons: she not only gives them clues to what they will find attractive in a mate, but also influences how they feel about women in general.So if she is warm and nice, her sons are going to think that’s the way women are.They will likely grow up warm and responsive lovers and also be helpful around the house.
Just as mothers influence their son’s general feelings toward women, fathers influence their daughter’s general feelings about men.If a father lavishes praise on his daughter and shows that she is a worthwhile person, she’ll feel very good about herself in relation to men.But if the father is cold, critical or absent, the daughter will tend to feel she’s not very lovable or attractive.
While the mother determines in large part what qualities attract us in a mate, it’s the father ----- the first male in our lives ----- who influences how we relate to the opposite sex.Fathers have a great effect on their children’s personalities and chances or marriage happiness.
56.What is the proper title for this passage?
A.Why we love who we love           B.What is a lovemap
C.Different influence from parents        D.Ideal mate in the mind
57.A perfect mate is a person who ____.
A.is fair to everyone               B.is the most desirable
C.fits one’s lovemap               D.is perfect in everything
58.If the husband hardly does any housework, ____.
A.his mother must be warm             B.his father must be critical
C.his mother must be cold               D.his wife can’t be attractive
59.The passage leads to a belief that ____.
A.parents’ personalities decides the children’s lovemap
B.mothers have no influence on daughters’ marriage life
C.fathers care more about children’s marriage happiness
D.mothers influence children’s choices of perfect mates

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实验室常用过氧化氢溶液和用二氧化锰作催化剂制取氧气。

【提出问题】二氧化锰是催化剂,二氧化锰的用量对反应速率是否有影响?

【设计实验】(1)实验装置如图所示。

(2)实验记录:每次用30mL10%的过氧化氢溶液,采用不同量二氧化锰粉末做催化剂进行实验,测定相关数据记录于下表中:

序号

1

2

3

4

5

6

7

8

9

10

MnO2(g)

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

待测数据

 

 

 

 

 

 

 

 

 

 

【分析】(1)写出该反应的符号表达式                          

(2)上述实验应该测定的“待测数据”可能是                       

(3)10次实验“每次用30 mL 10%的过氧化氢溶液”的目的是                 

(4)若第2次实验比第3次实验的“待测数据”更       (填"大"或"小"),说明催化剂的用量越多,反应越快。

【实验与结果】经多次实验证明,第1次实验至第7次实验中过氧化氢的分解速率依次加快,第7次实验至第10次实验所记录的“待测数据”无明显差异。

【结论】                                                 

【评价与反思】(答对本小题奖励4分,化学试卷总分不超过60分)

氧化铜是否也能用做过氧化氢溶液制取氧气的催化剂?请设计实验验证。

                                                                  

 

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