英语周报初一2018第一期答案

24.(14分,除标注外,每空1分)(1)差速离心法(2)是遗传信息库,是细胞代谢和遗传的控制中心(2分)(3)磷脂双分子层线粒体基质和线粒体内膜(2分)无活型和激活型RagC(2分)(4)具有0(5)A、B、C(2分)(6)抑制(2分)【解析】核膜的主要成分是蛋白质和磷脂;线粒体中可合成ATP的部位是线粒体基质和内膜;据图分析,二甲双胍抑制线粒体的功能,进而直接影响了无活型和激活型RagC的跨核孔运输,最终达到抑制细胞生长的效果。物质进出核孔是具有选择性的,RagC进出细胞核需经过0层生物膜。由于“二甲双胍抑制线粒体的功能”,所以细胞分裂、RNA转录、分泌蛋白运输这些消耗能量的生理过程都受到影响。故选ABC图中物质ACAD10对细胞生长的作用效果为抑制作用

第二节One possible versionniceDear overseas students from America,Here comes the news that Chinese Bridge series activities will be held in our school. So all of participants arewarmly welcome in the pep rally to get fully prepared for thefolloThemed at promoting Chinese culture around theworld, Chinese Bridge acts as a platform to help narrow thegap of mutual understanding about China. Whoever isactively involved in it will develop a positive awareness ofChinese and its culture behind. Based on it, the pep rallis scheduled in our school auditorium from 14: 00 p.m15: 00 P. m. next Friday afternoonPlease make sure you are available at that time andThe student’ s Union

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