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试题答案

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5、[天一大联考]河南省2025-2026学年(上)高三开学考地理试题


4、[天一大联考]河南省2025-2026学年(上)高三开学考化学试题


M: What kinds of chores do you always do
W: Things like cleaning the room and cooking.
M: Oh, I see. Sarah. I’m sorry I have to go now. I have to prepare for my violin lesson at 4:30 this afternoon.
听下面一段对话,回答第12至第14三个小题，现在你有15秒钟的时间阅读这三个小题。
W: Can you tell me something about the longest river in the world
M: Sure. It’s the Nile. And it is in Africa.
W: How long is it


It's possible that you won't see a single other tourist in this lesser-known reserve. Near the northwest edge of the Republic of the Congo, Odzala protects a part of the Congo Basin rain forest, often called the“second lung” of the world. Here, you can canoe(划独木舟) along the forest waterways, walk through quiet woodlands while keeping your eyes open for chimpanzees(大猩猩) and elephants, and interact with Western Lowland Gorillas.
Queen Elizabeth National Park, Uganda
Queen Elizabeth feels a world away from the volcanoes and rain forests. Instead, you' ll find lakes and plains(平原). The park is known for its tree-climbing lions—— unusual behavior for the animals—— but there are also elephants, buffalo, leopards, hippos, and hundreds of bird species to spot. In addition to game drives, you can take boat trips along the Kazinga Channel and track chimpanzees.
21. What is special about Hwange National Park
A. It is close to a famous waterfall.
B. It is known for tree-climbing lions.
C. It offers gorilla interaction experiences.


1、[天一大联考]河南省2025-2026学年(上)高三开学考数学答案


5、[天一大联考]河南省2025-2026学年(上)高三开学考化学答案


6、[天一大联考]河南省2025-2026学年(上)高三开学考政治答案


6、[天一大联考]河南省2025-2026学年(上)高三开学考数学答案


5、[天一大联考]河南省2025-2026学年(上)高三开学考数学试题


1、[天一大联考]河南省2025-2026学年(上)高三开学考化学答案


【点评】本题难度不是很大，化学实验方案的设计是考查学生能力的主要类型，同时也是实验教与学的难点，明确实验原理、熟练掌握所涉及物质的性质等是正确解答本题的关键。
18．（2025 南宁二模）控制变量法是实验探究的重要方法。下列四组实验与所得结论不相符的是（　　）
A二氧化碳能与氢氧化钠反应 B铁与水接触是铁生锈的条件之一 C二氧化锰能加快过氧化氢的分解速率 D黄铜的硬度比铜的大
A．A B．B C．C D．D
【考点】化学实验方案设计与评价．
【专题】实验设计题．
【答案】B


N2可用作反应的保护气
N2中N=N键能大
B
甘油可用于配制化妆品
甘油能与水形成氢键保湿
石墨粉常作润滑剂
石墨层内碳原子的2印轨道存在肩并肩重叠


3、[天一大联考]河南省2025-2026学年(上)高三开学考生物答案