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试题答案

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5、百师联盟 2025-2026学年高一上学期阶段测试卷(一)1数学试题


2、百师联盟 2025-2026学年高一上学期阶段测试卷(一)1数学试题


9．A．report B．celebrate C．organize D．support
10．A．Sadly B．Clearly C．Similarly D．Surprisingly
七、阅读理解。
In the age of the Internet, do young people still need to spend time learning some everyday life skills (技能) To find the answer, we did a survey (调查) among 1,000 young people. Q: ▲ Q: What life skills do you want to learn tidying and organizing (收纳) cooking doing housework first aid (急救） shopping for food Q: Why do you spend time learning life skills Li: We live and learn. It’s fun to learn something new. Wang: I don’t want to ask my parents for help all the time in my life. Su: Learning something new is exciting. It is also a good way to relax.
1．Which of the following can be put in ▲
A．Should children take the Internet seriously
B．Is it necessary for young people to learn life skills


F．They will try anything to communicate.
Truly a Wonder!
Anna was a 9-year-old girl from a small village. She finished attending primary school till the 4th grade at her village. For the 5th grade, she would have to get an admission (入学) in a school at a city nearby. She was very happy knowing that she was accepted in a famous school in the city.
When she reached her school on the first day, all students started going to their classes. Anna also made it to her classroom. When seeing her simple clothing and knowing she was from a small village, other students started making fun of her. The teacher soon arrived. She introduced Anna to the class and told them that she would study with them from that day on.
During the class the teacher told the students to be ready for the surprise test now! She told everyone to write down the Seven Wonders of the world. Everyone started writing the answer quickly. But Anna started to write the answer slowly.
When everyone except Anna had presented their answer paper, the teacher asked Anna, “What happened, dear Don’t worry. Just write what you know as other students learned about it just a few days ago.”
Anna replied, “There are many things. Which seven can I pick to write ” And then she handed her answer paper to the teacher. The teacher started reading everyone’s answers and most of the students had answered them correctly such as The Great Wall of China, Stonehenge, Great Pyramid of Giza, Leaning Tower of Pisa, Taj Mahal, etc.


6、百师联盟 2025-2026学年高一上学期阶段测试卷(一)1数学试题


5、百师联盟 2025-2026学年高一上学期阶段测试卷(一)1数学试题


2、百师联盟 2025-2026学年高一上学期阶段测(一)1数学试题


6、百师联盟 2025-2026学年高一上学期阶段测试卷(一)1数学试题


5、百师联盟 2025-2026学年高一上学期阶段测试卷(一)1数学试题


6、百师联盟 2025-2026学年高一上学期阶段测试卷(一)1数学试题


硅反应有关，故C不符合题意；钢铁在潮湿的空气中易发
剂，B不符合题意：肼和NO2在一定的条件下可以发生剧
生吸氧腐蚀，在护栏上涂油漆可以隔绝钢铁与潮湿空气
烈反应，该反应放出大量的热，且生成大量气体，因此，液
接触，防止钢铁腐蚀，测公园的钢铁护栏涂刷多彩油漆防
态NO2一肼能作为火济推进剂，C不符合題意：煤油可以
锈，与隔绝钢铁与潮湿的空气防止腐蚀有关，故D不符合


（3）根据炼铁过程中空气的作用和生铁的性质进行分析；
（4）根据瓦斯与水反应生成氢气和一氧化碳的反应进行分析；
（5）从生产生活角度出发，考虑助力“碳中和”目标的措施。
【解答】解：（1）煤炭主要由碳元素组成，还含有氢、氧、氮、硫等元素，属于混合物，故答案为：碳；混合物；
（2）甲烷是一种可燃气体，密度小于空气，可以通过竹筒排出。甲烷燃烧时会产生二氧化碳，推测“毒气”中可能存在的一种含碳物质是CO，故答案为：甲烷的密度比空气小；CO；
（3）“逆流而行”的目的是增大与氧气的接触面积，使反应更快更充分，生铁是铁和碳的合金，硬度比纯铁大，故答案为：增大与氧气的接触面积，使反应更快更充分；大；
（4）瓦斯（主要成分是甲烷）与水在一定条件下反应生成氢气和一氧化碳，化学方程式为：CH4+H2O3H2+CO，故答案为：CH4+H2O3H2+CO；


3、百师联盟 2025-2026学年高一上学期阶段测试卷(一)1数学答案