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2026年8月浙江高三Z20+联盟生物试卷、答案、解析(选择较难大题适中)

  • 2026-11-07 09:22:28
2026年8月浙江高三Z20+联盟生物试卷、答案、解析(选择较难大题适中)
这次Z20选择题很多是老题改编,难度较大,很多题目如果审题不仔细易掉坑,如第4、13、19、20题等。大题比较常规,难度适中,实验大题的分组处理易错。
试卷解析:

1.D。由于生物武器造成危害的特殊性,生物袭击还可能导致人们出现极大的恐慌情绪(浙科版选三P150),因此生物武器会影响心理健康,D错。

2.C。核糖体含有rRNA,染色体和线粒体含有DNA和RNA。

3.D。内环境是动物细胞与外界环境进行物质交换的媒介,包括血浆、组织液、淋巴等。

4.A。噬藻体增殖所需的ATP来自蓝藻细胞,A对;噬藻体与蓝藻所含有的生物大分子不完全相同,如噬藻体不含RNA,而蓝藻细胞中含有RNA,B错;蓝藻是原核生物,没有染色体,C错;蓝藻双链DNA中A=T,但是蓝藻细胞中还有单链的RNA上有A,没有T,因此蓝藻细胞内A的数量多于T的数量,D错。

5.A。患者厌氧呼吸产生的乳酸导致内环境pH略有下降,B错;葡萄糖不能进入线粒体中分解,C错;患者厌氧呼吸的第二阶段无[H]和ATP产生,D错。

6.D。马铃薯蔗糖培养基中有淀粉,因此遇碘-碘化钾溶液会变蓝,A错;马铃薯蔗糖培养基富含的淀粉一般不能直接为酿酒酵母提供碳源,B错;DNA提取液中加入二苯胺还需要沸水浴加热,才能变蓝,C错;用血细胞计数板计数酿酒酵母时应先盖盖玻片再滴加菌液,反之计数结果会偏大,D对。

7.B。HIV侵染Th细胞时,HIV的蛋白质外壳也注入了细胞,A错;HIV属于逆转录病毒,逆转录时会发生碱基A与T、U与A的互补配对,B错;在HIV潜伏期(8~10年),Th细胞数量先增后减(浙科版选一P91图),而不是持续维持在较高水平,C错;浆细胞不能识别抗原-MHC复合体,D错。

8.D。鸟的声纹在个体和鸟种之间均存在差异,不同声纹的鸟类可能是同一物种,生态位可能重叠,A错;群落包含该区域的全部生物,B错;该方法只能估算某些种群的密度,无法准确计算,C错;不同季节所测到的鸟类声纹差异可以反映群落的时间结构(季相),D对。

9.C。该实验是前后自身对照,不需要额外设置空白对照,A对;图2中的黑藻细胞可能正在发生质壁分离,也可能正在复原,B对;高倍镜下能看到胞质环流,C错;图1中步骤c若滴加浓度适当的KNO3溶液,则可省略e滴加清水的步骤,因为细胞能自动复原,D对。

10.D。雌激素低于生理浓度时,仍对GnRH的分泌起抑制作用,只是抑制作用减弱,而不是起促进作用,D错。

11.B。方式a中,所需能量来自电化学势能,A错;由题干可知,光驱动泵广泛存在于原核生物中,原核生物无类囊体膜,C错;广泛分布于动物细胞膜上的Na+-K+泵,其工作原理与方式b类似,均由ATP供能,D错。

大题不懂的可以在留言板回复哪个空不懂,根据问的多的录制视频解析。

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  12. SELECT * FROM `article` WHERE `id` > 511450 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000410s ]
  13. SELECT * FROM `article` WHERE `id` < 511450 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000438s ]
  14. SELECT * FROM `article` WHERE `id` < 511450 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000522s ]
  15. SELECT * FROM `article` WHERE `id` < 511450 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000664s ]
0.106715s