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    1、深圳中学高三数学试题"
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5、深圳中学2026届高三年级第二次阶段考试数学试题


3、深圳中学2026届高三年级第二次阶段考试数学试题


A. B. C. D.
B
Today is July 4. It is Betty’s 13th birthday. She comes home and sees a card on the table. It says: “There’s a present for you, Betty. Go and look for it in your room.”
Betty runs to her room. Her parents are watching her. They are smiling.
On her bed she sees a new red box. She thinks: “What’s in the box ” She opens it. There is nothing but a card in it! Betty takes it out and reads:
“Dear Betty, I’m your present. My first letter is in the word ‘book’, but not in ‘look’. My second letter is in ‘ink’, but not in ‘thank’. You can find my third letter in both ‘ink’ and ‘book’. And my last letter is in ‘sheep’, but not in ‘ship’. What am I ”
Betty thinks hard. Then she smiles and says to her mother: “Aha, I know. But where is it, Mum ” Her mother says, “Look at the back of the card.” Betty turns it over and reads: “Come and look for me in the garden.”


8.(2025 黄石模拟)Experts warn that medical waste from hospitals,if___ properly,may lead to spreading diseases.(  )
A.not handled B.not being handled
C.not to be handled D.not having handled
【答案】A
【分析】专家警告医院的医疗垃圾如果处理不当,有可能导致传播疾病.
【解答】答案:A
解析:if引导的条件状语补充完整则是:if they are not handled properly.因为从句的主语与主句的主语一致且含有be动词,故可以将从句的主语与be动词一起省略,只保留其它部分.综上,本题答案为A选项.


4、深圳中学2026届高三年级第二次阶段 数学答案


2、深圳中学2026届高三年级第二次阶段考试数学答案


2、深圳中学2026届高三年级第二次阶段考试数学答案


6、深圳中学2026届高三年级第二次阶段考试数学答案


5、深圳中学2026届高三年级第二次阶段考试数学试题


4、深圳中学2026届高三年级第二次阶段考试数学答案


(3) 木炭为可燃物,木炭燃烧需要的条件:①氧气(或空气);②达到木炭的着火点。
(4) 碳单质完全燃烧生成的气体为二氧化碳,二氧化碳是造成温室效应的主要气体。
【分析】(1)根据碳的元素符号书写分析;
(2)根据燃烧放热分析;
(3)根据可燃物燃烧条件分析;
(4)根据碳完全燃烧生成二氧化碳分析。
10.(2025·西藏)阅读科普材料,用所学化学知识回答下列问题。


Ⅱ.
(1)粉碎1分
过滤
1分
(2)Na,Se04十4C高温NaSe十4001
2分
(3)溶解、过滤、洗涤


3、深圳中学2026届高三年级第二次阶段考试数学答案