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6、湖南天壹名校联盟·2026届高三9月大联考数学试题


1、湖南天壹名校联盟·2026届高三9月大联考数学试题


16. I want to share my life in 20 years. _________________________________________________________________
笔试部分（共75分）
二、完形填空（10分）
阅读下面短文，从短文后所给的A、B、C、D四个选项中选出最佳选项，并在答题卡上将相应的字母编号涂黑。
Each one of us shares this planet with others. And we all need transportation. People and products need to move from city to city and country to country. However, we all know ___1___ most cars, motorcycles, boats and planes cause air pollution. They are also noisy. This is a serious problem in many cities. ___2___ inventors are coming up with creative ideas to try to reduce the pollution and noise.
In many cities around the motorcycles are very ___3___. Now Vietnam has many motorcycles and China has many too. Motorcycles are a faster and cheaper way to get around a city than ___4___. Yet air pollution is a growing problem. In large cities, people ___5___ it is difficult to breathe. To solve this problem, a US company designed an environmentally friendly fast. This makes ___6___ a good choice for getting around a city.
The Italian city, Venice, is a city with only a few roads. There are no cars in the city center. ___7___ bus, water taxis and buses carry people along the city's canals(运河). However, they cause pollution, ___8___ to the water. English engineers designed a solar-powered water taxi. The water taxi ___9___ run for a day after being charged.


What things can students bring
①A water bottle. ②A small bag. ③A phone.
A. ①② B. ②③ C. ①③
Which of the following can be put in ▲
A. Activities. B. Routines. C. Rules.
B
Tom 8:05丨1 June We’re here at Mount Emei! The morning fog is very heavy and we can’t see far. It feels like walking in a white world. So magic! Lily and I are enjoying birds singing in the mountains. But Anna is a little bored because she thinks everything is grey.


5、湖南天壹名校联盟·2026届高三9月大联考数学试题


1、湖南天壹名校联盟·2026届高三9月大联考数学试题


3、湖南天壹名校联盟·2026届高三9月大联考数学试题


3、湖南天壹名校联盟·2026届高三9月大联考数学试题


6、湖南天壹名校联盟·2026届高三9月大联考数学试题


5、湖南天壹名校联盟·2026届高三9月大联考数学试题


（5）CH4
【知识点】原子结构示意图与离子结构示意图；元素的符号及其意义；元素周期表的特点及其应用
【解析】【解答】（1）从表中查出氮（N）元素的相对原子质量为14.01，氮原子最外层有5个电子，在化学反应中容易得到电子。
（2）镁离子核内有12个质子，核外有10个电子，则镁离子结构示意图表示为
（3）原子的最外层电子数相同，元素的化学性质相似，所以锂元素与钠元素化学性质相似的原因是原子的最外层电子数相同。
（4）氖原子核外有10个电子，与氖原子的核外电子排布相同的带3个单位正电荷的离子是铝离子，其符号为。
（5）和CH4互为等电子体，因为它们都是有5个原子、10个电子。


(2)量筒胶头滴管
(3)降低苯乙酸的溶解度，利于析出晶体
答案第1页，共2项
(4b
()90%
(⑥温度过高，导致苯乙腈等有机物分解；温度过低，反应速率慢
CHCOOH


3、湖南天壹名校联盟·2026届高三9月大联考数学答案