2022英语周报提升版31答案

第二节【语篇类型】记叙文【主题语境】人与自我——生活态度【文章大意】作者被诊断得了乳腺癌,手术后为了避免复发,需要进行化疗,但因为特殊的形势,家人不能在医院陪护她。作者一度情绪低沉,但是慢慢地作者转变了态度。在医疗人员的关怀下,作者战胜了疾病,也收获了真正的友谊和自信。【写作指导】 Paragraph1的开头是"我决定做出更多积极的改变",因此本段续写要体现出作者在化疗过程中行为和态度的积极Paragraph2的开头是"此外,我从负贲化疗的团队中获得了支持",因此接下来的内容应该以描述医疗工作人员对作者的支持、作者和他们的相处以及作者的感受为主,可以作者对所有支持和帮助过自己的人表达感谢来作为文章的结尾。One possible versionaragraph II decided to make more positive changehair lossdoesn't mean I'm not pretty anymore. Failing to visit the hairdresser's, Idecided to shave my head. With teary eyes, I whispered, "Goodbye,mhair. Goodbye cancer. When I looked in the mirror I didnt see thehair that was missing, but the confidence on my face. And whergained my strength, instead of worrying about work arrangements, I reador listened to podcasts, which became rare relaxing time for meParagraph 2What's more, I found support in my chemo team. Initially nothingrightened me as much as the prospect of chemo especially withoutcompany of a loved one. But kindness and sensitivity of the chemo crewwas a comfort. I'd ask the nurses what they did in their off-time. Mteam would clap as I'd tick off another completed session, I treasure thememory of my recently completed final session: we danced as I"rangthe bell "-a graduation ceremony marking the end of a patientscourse of cherno

17.C【必备知识】共点力平衡、受力分析图解分析如图甲所示,是五个球的立体图形,图乙是五个球心连线组成的正四棱锥,根据几何关系可求出cos6=y(2R)2-(22R22=2,可得0=459在计算下方小球对上方小球的支持力时,要能分析出作用力与坚直方向的夹角,由于本题中的四个支持力不在同一平面内,对空间思维要求较高,画出立体图形后很容易得出作用力与竖直方向夹角的正(余)弦值。图甲图乙解题思路】结合几何知识对第五个球受力分析可得4Fcos45°=mg,解得F=ymg,A错误;对A球受力分析,竖直方向有FMA=mg+F"cos45°,解得FM4mg,B错误;地面对A球的摩擦力大小为=F,sn45°=4mg,C正确;结合题意,施加外力前,有k(mg+mg)=mg,可得k=x,施加外力后,有k(4mg+mg+4)<4mng+4,则系统不能保持静止,D错误。

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