2021-2022年英语周报高一课标综合OT第24期答案

第四部分写作第一节短文改错Yesterday morning, an inspirational meeting was being heldin our school. Many top students in our school shared their studyexperienceunique leaming methods, which are beneficial tothose who are confusing about their studies. In my opinion, themeeting was A big success, and what f provided to us was quitevaluable. As for me, I have learnt a lot from the meetingFirstly, I have realized a positive attitude plays an important role inour studies. No matter whichnat problems we may meet, we shouldalways try our best to find solutions with strongdeterminationsdeterminationThen,I have known many usefully learning methods and wthe to my studies. Lastly, I have become moreconfident. I strongly believe I can prove my ability through hard

32.(除注明外,每空2分)(1)亲本在产生配子时,同源染色体或姐妹染色单体没有分开,产生了不含2号染色体的配子(2)不含1号染色体或性染色体的雌雄配子无法存活或无受精能力;缺少1条1号染色体或性染色体的受精卵不能发育或在胚胎早期死亡(3)①让短刚毛雌昆虫与长刚毛雄昆虫杂交,如果F1中雄昆虫全为短刚毛,雌昆虫全为长刚毛,说明D/d位于X染色体上;否则位于常染色体上(2分)②让纯合的2号单体长刚毛雌虫与正常短刚毛雄虫杂交,如果F1中出现了性状分离,说明D/d位于2号染色体上(2分)③让纯合的3号单体长刚毛雌虫与正常短刚毛雄虫杂交,如果F1中出现了性状分离,说明D/d位于3号染色体上,如果②③的杂交结果相同,说明D/d位于1号染色体上(2分)

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