Yesterday was Father's Day. I had planned to give my father a present. But I didn't remember it until in the morning.It was too late to post a card to him. So I decided to buy something. When I was in the department store. I found it was not easy for me to choose something right for him. Suddenly I
got an idea. I ran home and opened my computer. I made a beautiful card and mailed him through the Internet. then I began to make supper. When father came home, he was very glad to find a big meal on the table. then I asked him to check his e-mail. He was amazed to find a beautiful card in his e-mail-box.
What a wonderful surprise!
Dear David:
I am afraid that you will think me unpardonably negligent in not having answered your letter dated 7, December sooner, but when I have told you the reason, I trust you will be convinced that the neglect was excusable. When your letter arrived, I was just in Hong Kong. As my family could not forward it to me during my absence, it has been, therefore, lying on my desk until the moment when I took it up. Now the first thing I have to hasten to do is to write to you these few lines to express my deep regret.
I enjoyed many pleasant sights during my trip. I shall be pleased to give you an account to of them when I see you next.
Sincerely yours,
Tom
dear david:
i am afraid that you will think me unpardonably negligent in not having answered your letter dated 7, december sooner, but when i have told you the reason, i trust you will be convinced that the neglect was excusable. when your letter arrived, i was just in hong kong. as my family could not forward it to me during my absence, it has been, therefore, lying on my desk until the moment when i took it up. now the first thing i have to hasten to do is to write to you these few lines to express my deep regret.
i enjoyed many pleasant sights during my trip. i shall be pleased to give you an account to of them when i see you next.
sincerely yours,
tom
亲爱的戴维:
请原谅我收到您12月7日的来信后迟迟未复,现将原因告诉您,相信您一定会谅解的。您的来信到来时,我正巧在香港,家人无法及时转递。你的信一直放在我写字台上,直到我回到才看见,拖至今天才回信,深表歉意。
这次出去旅行饱览了许多美丽景色,下次见到您时,将告诉您一切。
生物化学较强的理论性和抽象性是学生感到生物化学枯燥及学习被动的主要原因。兴趣是学习的动力,是力求认识事物的心理倾向,激发学习生物化学的兴趣是非常重要的。所以教学内容要侧重于将生物化学的基本理论、基本知识与临床工作联系起来,既能激发学生的学习兴趣,又有助于生物化学课程与后期临床课程和临床实践的密切配合。如在讲授酶时,把酶作用的最适温度概念和高烧对人体的危害、冬眠疗法、高温灭菌、低温保存生物制品等医疗工作措施联系起来。在讲核酸和蛋白质生物合成时,联系一些抗生素抑制细菌生长和抗癌药抑制癌细胞生长的机理,在讲述糖代谢时,可列举糖尿病病例,利用糖代谢知识分析糖尿病“三多一少”产生的原因及治疗方法。不但加深了学生对生物化学知识的理解,而且极大地激发了学生的学习兴趣。让学生觉得理论不再空洞,加快其领悟,提高了教学效果。
在暑假里,我认真的阅读了《中国化学学科史》这本专业书,感觉收获特别大。这部书追溯了化学学科在中国建立、成长和发展的历程。它不仅关注化学知识的增长进程,更关注化学作为一个学科的体系、机构、制度在中国确立的过程。首先,在中国古代,确实存在很多与化学相关的实践活动,并产生了丰富的化学知识。其次,20世纪现代化学作为一个独立学科在中国的建立完全是西方化学学科体制移植的结果。另外,中国古代的化学实践和知识,曾在一定程度上对现代化学做出了贡献。
作为一门现代科学,中国现代化学是20世纪初从西方全面移植过来的。晚清民国时期是现代化学学科在中国落地生根的关键时期。本书对这段历史进行了全面梳理,尤其是对中国化学学会等中国首批化学研究团体和研究机构建立、发展和演变的历史,对于中文化学术语的制定以及学科化时期的学术研究情况进行了专门研究,再现了中国化学学科的早期制度化过程。
自新中国成立以来,中国化学学科取得了重大发展,无机化学、有机化学、分析化学、物理化学等化学分支学科蓬勃发展。但以前对于中国化学学科在1949年以后的发展,还从未从学科史角度进行过全面的梳理。本书以1949年以后中国化学学科的发展情况作为全书的重点,填补了以前对于此段历史研究不够充分的缺陷。
《中国化学学科史》共分三大部分、共十七章。
第一部分包括前6章,对化学学科在中国得以建立的本土文化背景和国际学科背景进行了简要探讨,内容包括中国古代的化学相关实践和知识以及作为中国现代化学学科直接来源的西方现代化学学科的制度化过程。
主要论述了中国古代化学活动、知识及相应的社会和建制框架。在古代,无论是在中国,还是在西方,均不存在一个独立的化学学科,古代化学活动和知识存在于古代自然哲学、炼金术(炼丹术)、金属冶炼、医学及药物制备以及诸如制陶(瓷)、制酒等实用生活技术之中。这些实用性的技术一般都有官方和民间两套系统,除去造币为国家职能,冶铁、酿酒等曾经一度为国家垄断之外,其余技术一般既有官办场所又有民办场所。此部分阐明了中国古代有代表性的化学实用活动、知识及其社会文化依托。
第二部分全面追溯19世纪末到20世纪初现代化学逐渐传入中国,并作为一个独立学科在中国逐渐确立的过程,内容包括化学教科书的引进、名词术语的翻译、近代化学研究团体和研究机构的设置、中国近代化学工业体系的建立等。这部分包括三章。
第三部分、中国现代化学学科的发展,这部分包括后八章。是《中国化学学科史》的主体部分,这一部分对我国化学学科发展的基本情况进行了系统概括,弥补了以往对新中国建立以后的化学学科发展情况研究不够充分的缺陷。这一部分分章介绍建国以来我国在无机化学、有机化学、分析化学、物理化学等分支领域里的学科发展情况,内容涉及这些分支学科中取得的重大化学成就、杰出研究者以及学术机构发展概况。
通过对《中国化学学科史》的学习,有效地提升了我的专业素养,使我较全面了解化学学科发展的历史进程,增强对化学学科的性质、历史定位、社会文化价值以及作用的认识,了解其发展规律或趋势,而且对于我开拓知识视野、增强学科素养、把握学科发展趋势有着十分重要的意义。化学可以给人以知识,而化学史可以给人以智慧。在今后的化学教学中,我会主动地把化学史渗透于知识教学中,这样可以激发学生的学习兴趣;对学生进行科学方法论教育;向学生进行唯物史观的教育;向学生进行不畏艰险、顽强探索的科学精神的教育;同时还可向学生进行爱国主义教育,训练科学方法、培养科学态度以及加强诚信教育。《中国化学学科史》的确是化学教师必读的一本好书。
Dear dad,
It’s so late,almost 11:00 at night.Have you entered into the sweet dream yet?I haven’t seen you for a long time.I miss you so much.Can you hear my sincere words?Maybe you’ll never know I miss you so much!
Do you still remember the happy days when we were all together?During those days we were full of sunshine.You and mum often took brother and me to the park.We always saw the ice-cream tear.Sometimes,you stayed at home and cooked some delicious food for us.We often waited for you and played with you.You could lift me very high.We always had a good time.You also concerned about my lesson.But you have never chastised me and lectured me.You were full of thoughts for me.What’s more,you were my best father in my heart.You were the envy of my friends.I was happy for a long time.But now,all things have changed.You can’t take care of me.You aren’t at home all day.Sometimes,I go to bed late,but I still can’t see you.Are you busy?No!you often play cards with your work friends in the factory.So you can’t go back home early.I’m angry to hear that!Do you know?If you don’t come back,we’ll worry about you.I often see you and mum should divorce in my dream.I’m very scared,because I want to have a happy family.I can’t control my tears and often suffer from insomnia the whole night.
Dad,I want to see you and talk with you.But I have no courage to tell you.But I hope you can care our family.Dad!Could you hear my voice?
Hope you keep healthy and best wishes.
Dear Mr.Smith,
I am indeed very sorry that I missed the examination on International Business English Writing you gave last Friday. I feel awful about it and want you to know what happened that day.
I suddenly fell sick early that morning and my parents had to send me to the hospital.Please find enclosed a copy of the medical bill.
I sincerely hope you can understand my situation and accept my apology. I would appreciate your allowing me to take a make-up examination. I will come to your office during your office hour on Monday to discuss this possibility with you. Once again, I apologize for any inconvenience caused.
Sincerelyyours,
Wang Hua
记得有一次,我心情不是很好。但是当我打开书本的时候,我便被书中的情节吸引住了,那颗浮躁的内心自然而然也便静了下来。这,大概就是书中那股吸引着人们的\'魔力吧!当你真正融入到书中的时候,一切不悦似乎都如轻烟般袅袅散去。有时会因书中的人物而紧张,有时会因人物的命运而悲伤,有时也会因故事的美好结局而露出舒心的微笑。
畅游在书中,一切都变得那么新奇有趣。你可以和卫青一起,观看大漠的雄风;你可以跟孔子一起,周游天下的列国;你可以随哈姆莱特,祝他能报仇雪恨;你可以在李白身边,听他的雄心壮志;你也可以来到巴黎,看那段圣母院边的悲剧……这些故事中,有豪放的姿态,也有壮烈的气魄;有飘逸的言论,也有悲哀的哭泣……这大概也就是书中的爱恨情仇,酸甜苦辣吧!
古人云:“书中自有黄金屋。”是的,多读好书的益处还真不少:在写作中,文字便如流水般从笔尖流出,这不正是“读书破万卷,下笔犹如有神”吗?在与人交谈时,不再仅仅只局限于那几句单调的寒暄。书中的故事,书中的人物,都成为了我们对话的内容,这难道不是读书带给我们的乐趣吗?冰心曾经说过:“读书好,好读书,读好书”。这不正是在激励我们要多读好书吗?
曾经有人说过:“书籍就犹如一艘轮船,带领我们到达更加广阔的海域。”此话不假,我热爱读书:“它给带给我知识让我的眼界更加开阔;它带给我道理,让我学会了如何做人处事。阅读书籍。真好!
© 2022 xuexicn.net,All Rights Reserved.