
峨眉山今年高考可以复读吗相关问题汇总
1、高三复读需要什么手续?
2、高三复读怎么找学校?
3、高中复读新规定?
4、2022年还有复读政策吗?
5、高三复读学校推荐吗?
峨眉山今年高考可以复读吗入学检测化学选择题摘录
1、固定容积为2 L的密闭容器中发生反应xA(g)+yB(g) zC(g),图I表示200℃时容器中各物质的量随时间的变化关系,图II表示平衡时平衡常数K随温度变化的关系。结合图像判断,下列结论正确的是
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A.200℃时,反应从开始到平衡的平均速率v(A)=0.08 mol•L-1•min-1
B.若0~5 min时容器与外界的热交换总量为m kJ,则该反应的热化学方程式可表示为:
2A(g)+B(g) C(g) ΔH = +5m kJ/mol
C.200℃时,若在第6 min再向体系中加入催化剂,可使v正>v逆
D.200℃时,平衡后再充入2 mol C,则达到平衡时,化学平衡常数变小
【知识点】化学反应速率 化学平衡
【答案】
B
2、下列实验处理不可行的是( )
①.将与NaOH的醇溶液共热制备CH3—CH═CH2
②.向甲酸(H-COOH)和甲醛的混合物中加入氢氧化钠溶液,中和甲酸后,加入新制的氢氧化铜加热,检验混合物中是否含有甲醛
③.向丙烯醛(CH2=CH—CHO)中滴入KMnO4(H+)溶液,观察紫色褪去,能证明结构中存在碳碳双键
④.为验证某RX是碘代烷,把RX与烧碱水溶液混合加热后,将溶液冷却后再滴入几滴硝酸银溶液,观察现象
A.只有①③ B.只有①②④ C.只有②③④ D.都不能
【知识点】烃的衍生物单元测试
【答案】
D
3、下列实验的现象与对应结论均正确的是
选项 | 操作 | 现象 | 结论 |
A | 将浓硫酸滴到蔗糖表面 | 固体变黑膨胀 | 浓硫酸有吸水性和强氧化性 |
B | 常温下将Al片放入浓硝酸中 | 无明显变化 | Al与浓硝酸不反应 |
C | 将一小块Na放入无水乙醇中 | 产生气泡 | Na能置换出醇羟基中的氢 |
D | 将水蒸气通过灼热的铁粉 | 粉末变红 | 铁与水在高温下发生反应 |
【知识点】化学实验基础知识和技能
【答案】
【答案】C
【解析】
试题分析:A中结论错误,应该是浓硫酸有脱水性和强氧化性;B常温下将Al片放入浓硝酸中,发生钝化,钝化也是反应;D中现象错误,水蒸气通过灼热的铁粉,反应生成四氧化三铁,黑色。只有C正确。
考点:常见实验操作和实验现象
峨眉山今年高考可以复读吗入学检测英语选择题摘录
1、 The city _______ the greatest earthquake in the 21st century.
A. saw B. seen C. knew D. knows
【知识点】动词 动词短语 【答案】
A
2、 The teacher asked such a difficult question ___ no one in the class could answer.
A. that B. what
C. which D. as
【知识点】定语从句 【答案】
D
3、 . I think you must be mistaken about seeing him at the theatre; I’m sure he _____ abroad all week.
A. is B. was C. has been D. had been
【知识点】动词时态与语态 【答案】
C
解析:用现在完成时表示影响或结果,即他整个星期都在国外,所以你说你在剧院见过他,你一定是搞错了。
4、 下面是你班班会上以“中学生是否能佩带手机”为题进行讨论的情况。请你写一封信给21st Century报的编辑说明该情况,并附带表明你自己的观点。
比例
40%学生赞同
60%学生不赞同
理由
1.便于同亲友联系;
2.可以上网查资料;
3.空余时间玩玩游戏调节大脑;
4.储存有用信息。
1.手机辐射对人健康有害;
2.响铃影响自己和他人学习;
3.属奢侈品;
4.容易引起相互攀比。
【知识点】其他 【答案】
Dear Sir,
I'm writing to tell you something about our discussion on the topic“Whether Middle School Students Can Carry Mobile phones (Cell phones)" at the class meeting.
Forty percent students agreed, for they thought it was convenient for them to communicate with their relatives and friends. They also thought they could surf the Internet to search for some information and store some useful information in the m. Besides, they could play games for rest if they feel tired after a long time's study.
However, sixty percent of us were against it. They said the radiation of cellphones was harmful to health, and the ringing sound did somewhat affect the cellphone holders and others. Also, cellphones were luxurious things for middle school students and it was easy to lead them to compare with each other.
As far as I am concerned, I agree with the majority. It is not suitable for middle school students to have cellphones. We can get in touch with others by other means and we can read more books to enrich ourselves.
Best wishes.
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