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试题答案

本文从以下几个角度介绍。

    1、成都石室中学高三上学期入学考试化学

6、成都石室中学2025-2026学年度上期高2026届10月月考政治试题


3、成都石室中学2025-2026学年度上期高2026届10月月考化学试题


Polluting and destroying environment do harm to producing food. Afew countries are reducing natural areas for growing food crops and raising livestock (牲畜). Most surprisingly, in the Brazilian Amazon rainforest, 800 million trees in the past six years have been cut down to make beef cattle farms. Also, fish farms still create a great deal of pollution as well as diseases. At present, it seems that food production doesn′t reduce, but it may influence all the living things on the earth in the future.
Natural disasters like droughts and storms can destroy a whole year′ s crop for an unlucky farmer. Climate change will make such events that were previously thought of as“once in a hundred years” happen more and more often. This means that we′ ll need more resources to produce the same amount of food.
Food waste is harmful to humans, as well as other life on the earth. It′s not only the problem on customers′ dinner table, but also an international problem that must be dealt with by the governments.
Food problems · Food is lost 56 from fields to fridges. · Food shortage is caused by pollution and natural disasters.
57 of food waste in Different countries * In developing countries · Some farmers are 58 all the time because of the food waste. · Crops may go bad because they can′t be transported 59 . · Products can′t be kept in good conditions because of the limited refrigeration.
* In developed countries · In the process of selling and buying, 60 .40% of food waste happens. The amount is almost the food production in some part ofAfrica in a year. · People throw the vegetables and fruit away 61 they look nice and meet standards.
Bad 62 on producing food * Polluting and destroying environment · Some natural areas are 63 to grow food crops and raise livestock. · Pollution, as well as diseases, is created by fish farms.


Answer the following questions:
43．What is Li Na’s dream
44．When did Li Na win the Grand Slam final in the Australian Open (澳网大满贯决赛)
45．How old was Li Na when she started to play tennis
46．Why did Li Na always feel sad when she was a child
47．What are Chinese people lacking (缺乏) on the tennis court
48．B．书面表达


6、成都石室中学2025-2026学年度上期高2026届10月月考物理试题


5、成都石室中学2025-2026学年度上期高2026届10月月考 试题


6、成都石室中学2025-2026学年度上期高2026届10月月考 试题


2、成都石室中学2025-2026学年度上期高2026届10月月考历史试题


6、成都石室中学2025-2026学年度上期高2026届10月月考 试题


6、成都石室中学2025-2026学年度上期高2026届10月月考历史试题


C、质子数=18，核外电子数=18，质子数=核外电子数，是原子，不符合；
D、质子数=17，核外电子数=18，质子数＜核外电子数，是阴离子，不符合；故选A。
【分析】牢记阳离子“质子数＞核外电子数”、阴离子“质子数＜核外电子数”、原子“质子数=核外电子数”的判断规则，对比各选项粒子的质子数和核外电子数。
9．【答案】D
【知识点】空气的污染与防治
【解析】【解答】 空气污染物里，二氧化硫（①）会导致酸雨，二氧化氮（④）也会引发酸雨等污染，它们属于有害气体，减少排放可减轻空气污染；二氧化碳（②）是温室气体，不属于空气污染物（虽会引发环境问题，但常规空气污染讨论中不算 ）；氮气（③）是空气主要成分，不是污染物。所以能减少空气污染排放的是①④；
故选：D。


②“90℃恒温反应”宜采用的加热方式为 。
(3)加入过量米氏酸的主要目的：
① 。
②提供酸性环境，促进反应正向进行。
(4)“减压抽滤”与常压过滤相比，其优点是 。
(5)“提纯”的方法为 (填标号)。
A．萃取分液 B．重结晶 C．蒸发结晶


3、成都石室中学2025-2026学年度上期高2026届10月月考生物答案