英语周报2022高二新课标答案

32.(1)不遵循(2分)这两对等位基因位于一对同源染色体上(2分)(2)①控制眼色的基因位于X染色体的非同源区段(2分)②全为红眼(2分)(3)不能(2分)雄果蝇只有XY种基因型,雌果蝇有XX2、XX两种基因型,后代一定出现ⅹY,不可能只有雌性(2分)[(1)据题意可知,控制果蝇的翻翅(M)与正常翅(m)、红眼(E)与粉眼(e)的基因都位于同一对同源染色体上,因此这两对性状的遗传不遵循基因的自由组合定律。(2)为了判断果蝇红眼(E)、粉眼(e)的眼色基因位于X、Y染色体的同源区段还是X染色体的非同源区段,将一只粉眼雌果绳(XX)与只纯合的红眼雄果蝇(XY或ⅩY)杂交,①若子代雌性为红眼,雄性为粉眼,则控制果蝇眼色的基因位于X染色体的非同源区段;②若子代全为红眼,则该基因位于XY同源区段。(3)由于雄果蝇只有XY基因型,雌果蝇有XX、ⅩX°基因型,雌雄个体杂交,后代一定会出现ⅩY,因此不能选择出某种基因组合,使后代只有雌性个体。]

第二节书面表达【写作思路】根据试题要求,考生需要写一篇记叙文,记述身边一位值得尊敬和爱戴的人。首先考生需要介绍自己最尊敬和爱戴的人是谁,简单地介绍一下他(她)。然后,陈述为什么他(她)值得尊敬和爱戴。最后,可以对前文进行一个总结,使文章结构严谨。本文的写作重点在"尊敬和爱戴的原因",考生可围绕这个要点适当拓展,从性格特点、处事风格等方面展开写作。【范文赏读】The most beloved and respected person around me is my teacher, Ms LiThough she has been teaching English for twenty years, she is still passionateabout teaching. She is kind and considerate towards us just like our dear motherWe all respect her because she always tries new ways to make her classes livelyand interesting. Hardworking and knowledgeable, she is one of the best teachersin our school. When we have a problem, we will turn to her for help. She alwaystalks to us patiently and helps us to find a solution. In our eyes, she is not onlyour teacher, but also our best friend. Those are why she deserves our respect【亮点词句】亮点词汇: beloved, respected, be passionate about, be consideratetowards, turn to sb. for help, in one's eyes亮点句式:Why引导的表语从句( why she deserves our respect)

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