2023湖南省长沙市雅礼中学高三下学期月考数学答案

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2023湖南省长沙市雅礼中学高三下学期月考数学答案试卷答案，以下是该试卷的部分内容或者是答案亦或者啥也没有

G?川了白上风形功进它西H多列H天。11.B【命题意图】本题考查元素推断与元素周期律，考查的化学学科核心素养是微观探析、证据推椎理与模型认知。【解题分析】X、Y、Z、W分别为C、O、Mg、S。硅原子的最外层电子数是最内层电子数的2倍，A项错误；沸点：CH4

实验组—A处理:把接触过胚芽鞘尖端的琼脂块放在切去尖端的胚芽现象:胚芽鞘会①_朝对侧弯曲生长对照组—B处理:把未接触过胚芽鞘尖端的琼脂块放在切去尖端的胚芽鞘一侧现象:胚芽鞘⑩既不生长也不弯曲(2)实验结论:胚芽鞘的弯曲生长确实是由一种化学物质引起的,温特把其命名为生长素、

    二、生长素的提取及再发现

    1.生长素的分离(1)1934年,科学家首先从⑩人尿中分离出与生长素作用相同的化学物质—⑩吲哚乙酸(IAA),1946年,人们才从高等植物中将其分离出来,并确认它也是@IAA(2)进一步研究发现,植物体内具与IAA相同效应的物质还有⑩笨乙酸(PAA)、吲哚丁酸(IBA)_等,它们都属于@生长素2.植物向光性的原因—单侧光导致胚芽鞘向光弯曲生长的作用机理(1)生长素是由@胚芽鞘尖端产生的,(2)在单侧光照射下,生长素在胚芽鞘尖端中横向运输到背光侧

9.D【解析】海水稻育种过程中涉及的回交和杂交都利用了基因重组的原理,将高产和耐盐碱基因整合到同品种内:水稻是两性花,培育出耐盐的雄性不育系后可不用对其去雄,避免了自花受粉的过程,方便与其他植株进行杂交:利用基因工程的方法将耐盐碱基因定向导入高产水稻内,有助于快速获得既高产又耐盐碱的品种:海水稻是一种杂交水稻,能体现出“杂种优势”,其获得的种子再次种植后会有性状分离现象,不定都具有高产又耐盐碱的特性,因此每年都需要进行海水稻制种

读后续写Possible version lI stared at the paper and then looked around. I was cold. Although I could not see my sistersnor the new house, which was hidden from my sight by a grey wall, I got the feeling that I was notalone. Walking along the shore was a tall familiar figure who looked lost in his thoughts. I lookedgain at the paper in my hand, closed my eyes and wishedAs /opened my eyes, I found my father was standing right beside me. Happy birthday, sonhe said, patting my shoulder gently. I smiled up at him and took his hand. Looking back, life fromthat day on marked the start of a close bond and a strong friendship with my father. What was mybirthday surprise? Wishes do come truePossible version 2I stared at the paper and then looked around. On the backside, there was a map. I noticed thatit was clearly leading me in a direction, but who could have sent this? I stood there in silence andstudied it. I decided to follow the map and it led me down the beach until I reached a staircase. Iooked back and could no longer see my siblings. I continued to follow the point on the map, untilI unexpectedly lost my footing and fell zksq down the stepsAs I opened my eyes, I found my father was standing right beside me. Happy birthday, sonhe said, patting my shoulder gently. Then he asked how I had come upon this place? I explained tohim that I had found the bottle in the ocean and when I opened it had the words on it. Shocked bythe message, my father realized what I had found I threw this bottle into the ocean many years agowhen I was alone. he said. I used to come to this exact place to get away from everyone else. NowI get to share this experience with you. What a birthday surprise