天利38套2022届普通高等学校招生全国统一考试（全国卷）能力拓展卷（一）英语试卷答案

天利38套2022届普通高等学校招生全国统一考试（全国卷）能力拓展卷（一）英语试卷答案，目前答案易对网已经整理了天利38套2022届普通高等学校招生全国统一考试（全国卷）能力拓展卷（一）英语试卷答案的各科答案和试卷，更多联考试卷请关注本网站。

15.A【解析】PTH是激素，发挥作用后会被灭活，而钙离子是无机盐离子，不存在灭活现象，A项错误；血钙浓度下降使PTH分泌增加，而PTH分泌增加后又会使血钙浓度回升，故血钙浓度的调节过程中存在负反馈调节，B项正确；PTH分泌增加可促进骨钙释放和肾小管对钙的重吸收，故骨细胞和肾小管上皮细胞是PTH作用的靶细胞，C项正确；钙离子通过体液的传送调节PTH的分泌，属于体液调节，PTH为激素，对血钙浓度的调节也属于体液调节，D项正确

第二节审题指导》本題要求写一封回信,写信属于应用文写作。信件格式已经给出,因此考生只需要根据情境及内容要点正确表达即可。考生可根据要点提示来表达自己对学校严禁带手机进课堂的看法。在写作时,首先表达自己的观点,然后给出理由,最后谈谈自己学校的情况并給予对方安慰。由于谈及的事情均为写信双方的常生活,因此在写作中,主要用第一人称和第二人称,时态以一般现在时或现在完成时为主。【参考范文】Dear PeterI'm sorry to know that you are not allowed to takecellphone into your classroom, but I think it'sfor you to do so. Here's my ideas about itOn the one hand. there are dozens of students inyour class. If someone forgets to turn off his/hercellphone, it may interrupt the class withmessages or calls. On the other hand, if you have acellphone on you when having classes, it's likely thatyou cant concentrate on your classes. for you maywant to look up a word or something else on theInternetIn my school, we are not allowed to takecellphones into our classrooms. At first, we aren'tused to it but now we dont feel it is inconvenientTherefore, I hope you will get used to your schoolrules soon and that you wont be worried about itBest wishesYoursLi hua