衡水金卷先享题 2023届调研卷 物理(福建专版)(三)3答案

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【答案】ACD【解析】细胞周期的顺序是G1→S→G2→M,G2期正常，细胞将进入分裂期。纺锤体的形成是在有丝分裂的前期，若SAC检验未通过，细胞将停留在分裂前期，而染色体数目加倍发生在分裂后期。根据题干信息，调节机制被激活，能够排除“故障”或使细胞周期中断，可推断出细胞周期检验点往往与相应的分子修复机制共同作用。有的细胞可能因某些原因暂时脱离细胞周期，处于G。期，如B细胞，当受到抗原刺激时，继续进行细胞增殖。

第二节（共5小题；每小题2分，满分10分）》根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。Get out your shovels,your seeds,and your soil-it's almost April 22.Here are several fun ways to celebrateEarth Day with your kids.Plant a tree.Since the first Earth Day in 1970,planting trees has been a traditional way of celebrating the holiday.Tryplanting one in your own backyard,or attending a local tree-planting event.In its lifetime,that single tree willabsorb approximately one ton of carbon dioxide.16.Spend the day without a car.17.Yet,challenge yourself to make your way through the day without hopping in the car.Walking,biking,or catching the bus will keep your carbon dioxide emissions down and show the kids there are other funways of traveling.Take a walk in nature.Perhaps the most obvious Earth Day activity is a nature walk.Make a list of things you'd like to find andcheck them off on your walk.18.Go through the colors of the rainbow and try and find an object in that coloron your walk.Attend a community activity.Show your kids it's not just Mom and Dad who care about Earth Day.Tons of people will show up for localevents as well!19.We guarantee you will find some activities like park clean-up,recycling demos,or tree-planting ceremony.20·When it comes to taking care of Earth,we all need to do our share.Take your kids to the local playgroundand give them each a pair of gloves and a small garbage bag.Task them with picking of scraps of trash as fast asthey can-whoever fills up their bag first,wins.Once you get back home,enjoy some Earth Day movies.A.Play the clean-up gameB.Remember that every day can be Earth DayC.If you don't feel like making a list,try a color searchD.Check out your newspaper the week leading up to the holidayE.On Earth Day,we realize what we can do to preserve our natural resourcesF.And there are a lot more surprising facts about trees you can share with your kidsG.Depending on where you live,this will bring varying degrees of problem to travel【语篇导读】本文是一篇说明文。文章介绍了庆祝地球日的几种有趣的方式。16F根据上文提示“在它的一生中，那棵树将吸收大约一吨的二氧化碳。”可知，F项承接上文，符合语境。17.G根据上文本段标题及下文提示“然而，挑战你自己，在不开车的情况下度过一天。”可知，G项引出下文，符合语境。18.C根据上文提示“把你想要找的东西列个清单，然后在散步的时候逐一核对。”再根据下文提示“整理彩虹的颜色，试着在散步时找到那个颜色的物体。”可知，C项承上启下，符合语境。19D根据上文提示“许多人将参加当地的活动！”再根据下文提示“我们保证你会发现一些活动，如公园清理、回收演示或植树仪式。”可知，D项承上启下，符合语境。20.A该空是小标题，用短小精悍的祈使句，应该在A或B项中选择。再根据下文提到带孩子去游乐场清理垃圾可知，A项切题。