2023届衡水金卷先享题分科综合卷全国乙卷B物理(一)

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1、2023届衡水金卷先享题分科综合卷全国乙卷B物理(一)

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8.AD【解析】本题考查圆周运动的临界状态。设A的质量和B的质量分别为M和m,若A在水平转台上恰好不发生滑动，以A、B整体为研究对象，A、B随着转台做匀速圆周运动，最大静摩擦力提供向心力，有u1×(M+m)g=(M+m)w2r,解得w=18,A项正确、B项错误；若B恰好不会沿圆柱发生滑动，分析B可知，水平方向有F=mo2r,竖直方向有u2F=mg,解得,C项错误、D项正确。以2r

I was brought up in the countryside by my grandmother. She was a very courageous and inspiring woman and was very beautiful, too. In comparison with her or some of my classmates, I always felt that I was not beautiful or pretty. In fact, when I was studying in middle school, I thought I was not beautiful and just because of these bad feelings I was not very confident. I often felt self-conscious. One day when I was walking with my grandmother after lunch, we met one of her friends. We talked for a few minutes. Just as my grandmother’s friend was about to leave, she turned to me and praised, “Xiao Wen, you look so beautiful today in that green dress.”

No one had ever praised me before. It was so encouraging. Suddenly I felt confident and happy. I couldn’t believe that someone described me as beautiful. It is true that those words turned my life around. And I admit that I treasured that green dress for a long time.

「写作内容」

1） 以约30个词概括短文的要点；

2） 然后以约120个词，就表扬(praise)或称赞发表看法，需包括以下要点：

a） 你看完作者的经历的感受。

b） 叙述你或你的朋友被老师表扬或其他人被表扬的一次真实或虚构的经历；

c） 这次称赞、表扬带来的最终影响。

「写作要求」

1） 可以参照阅读材料的篇章结构，组织故事，但不得直接引用原文中的句子；

2） 作文中不能出现真实姓名和学校名称。

试题答案

The writer was once praised by one of her grandmother’s friends for her beautiful green dress. This praise not only made her happy but also changed her attitude towards herself.

From what the author had experience, I truly feel that praise is really magical.

Compared with criticism, praise can often give people pleasure and make them more confident to try out their potential. We should always bear in mind that everyone needs encouragement and approval.

Perhaps many of us had such experience of being appreciated of praise. Take myself as an example. I was very naughty in the primary school. Most of the teachers and even my parents felt headache of me. But it happened that I once got a very high mark in an examination and the head teacher told my parents about this. My parents praised me crazily for this for quite a long time and told neighbors about that. I felt really happy and became polite to others. Every time when I heard others talk to me about my excellent examination result, I thought to myself that I would work even harder and made greater progress.

Just as Shakespeare said，“Our praises are our wages”.

【解析】这是一篇议论文写作。首先要把短文的大概内容概括出来，然后要围绕短文的主旨发表自己的看法。要注意把要求2的写作要点都写出来。第一段第二句使用了not only ……but also，把两个单句变成一句，使得句子既简洁又全面。”From what the author had experience”使用了倒装句，把what提前。用compared with开头，让人感觉眼前一亮。在使用从句方面。第三段中“it happened that I once got a very high mark in an examination and the head teacher told my parents about this.”使用了主语从句，it作为形式主语，而真正的主语放在后面.“Every time when I heard others talk to me about my excellent examination result,” 使用了when引导的时间状语从句，表示“当……的时候”，在词语的使用方面“Take myself as an example”take……as，把……当做；“even my parents felt headache of me”feel headache of，对……感到头痛。最后引用了名人名言，给文章留下了一个完美的结尾，也显示出作者优秀的作文功底。总结：写作时，多使用高级词汇和从句能为文章增色不少，同时适当的引用英文谚语更是锦上添花。

考点：考查议论文写作。

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