总结是记录某个时期的学习或工作情况，通过系统性分析的方式，编写出详细的书面报告，通过这份报告的内容，可让我们更加了解工作情况。那如何写出科学合理的总结呢？以下是小编整理的《常用高分子材料总结》仅供参考，大家一起来看看吧。
第一篇：常用高分子材料总结
常用高分子名称中英对照表
英文简称 ABA ABS AES AMMA 英文全称
Acrylonitrile-butadiene-acrylate Acrylonitrile-butadiene-styrene Acrylonitrile-ethylene-styrene 中文全称
丙烯腈/丁二烯/丙烯酸酯共聚物 丙烯腈/丁二烯/苯乙烯共聚物 丙烯腈/乙烯/苯乙烯共聚物 Acrylonitrile/methyl Methacrylate 丙烯腈/甲基丙烯酸甲酯共聚物
ARP Aromatic polyester AS Acrylonitrile-styrene resin ASA Acrylonitrile-styrene-acrylate CA Cellulose acetate CAB Cellulose acetate butyrate CAP Cellulose acetate propionate CE Cellulose plastics, general CF Cresol-formaldehyde CMC Carboxymethyl cellulose CN Cellulose nitrate CP Cellulose propionate CPE Chlorinated polyethylene CPVC Chlorinated poly(vinyl chloride) CS Casein
CTA Cellulose triacetate EC Ethyl cellulose
EMA Ethylene/methacrylic acid EP Epoxy, epoxide
EPD Ethylene-propylene-diene EPM Ethylene-propylene polymer EPS Expanded polystyrene ETFE Ethylene-tetrafluoroethylene EVA EVAL
Ethylene-vinyl alcohol FEP Perfluoro(ethylene-propylene) FF Furan formaldehyde HDPE High-density polyethylene plastics HIPS High impact polystyrene IPS Impact-resistant polystyrene LCP Liquid crystal polymer
LDPE Low-density polyethylene plastics LLDPE
Linear low-density polyethylene
聚芳香酯
丙烯腈-苯乙烯树脂
丙烯腈/苯乙烯/丙烯酸酯共聚物 醋酸纤维塑料 醋酸-丁酸纤维素塑料 醋酸-丙酸纤维素 通用纤维素塑料 甲酚-甲醛树脂 羧甲基纤维素 硝酸纤维素 丙酸纤维素 氯化聚乙烯 氯化聚氯乙烯 酪蛋白 三醋酸纤维素 乙烷纤维素
乙烯/甲基丙烯酸共聚物 环氧树脂
乙烯-丙烯-二烯三元共聚物 乙烯-丙烯共聚物 发泡聚苯乙烯 乙烯-四氟乙烯共聚物 乙烯-醋酸乙烯共聚物 乙烯-乙烯醇共聚物 全氟(乙烯-丙烯)塑料 呋喃甲醛 高密度聚乙烯塑料
高冲聚苯乙烯 耐冲击聚苯乙烯 液晶聚合物 低密度聚乙烯塑料
线性低密聚乙烯
LMDPE MBS MC MDPE MF MPF PA PAA PADC PAE PAEK PAI PAK PAN PARA PASU PAT PAUR PB PBA PBAN PBS PBT PC PCTFE PDAP PE PEBA PEBA PEEK PEI PEK PEO PES PET
Linear
polyethylene
medium-density
线性中密聚乙烯
甲基丙烯酸-丁二烯-苯乙烯共聚物
中密聚乙烯 密胺-甲醛树脂 密胺/酚醛树脂 聚酰胺(尼龙) 聚丙烯酸
碳酸-二乙二醇酯· 烯丙醇酯树脂 聚芳醚 聚芳醚酮 聚酰胺-酰亚胺 聚酯树脂 聚丙烯腈 聚芳酰胺 聚芳砜 聚芳酯 聚酯型聚氨酯 聚丁烯-[1] 聚丙烯酸丁酯 聚丁二烯-丙烯腈 聚丁二烯-苯乙烯 聚对苯二酸丁二酯 聚碳酸酯 聚氯三氟乙烯 聚对苯二甲酸二烯丙酯 聚乙烯 聚醚嵌段酰胺 聚醚醚酮 聚醚酰亚胺 聚醚酮 聚环氧乙烷 聚醚砜
聚对苯二甲酸乙二酯
Methacrylate-butadiene-styrene Methyl cellulose
Medium-density polyethylene Melamine-formaldehyde resin Melamine/phenol-formaldehyde Polyamide (nylon) Poly(acrylic acid)
Poly(allyl diglycol carbonate) Polyarylether Polyaryletherketone Polyamide-imide Polyester alkyd Polyacrylonitrile Polyaryl amide Polyarylsulfone Polyarylate Poly(ester urethane) Polybutene-1 Poly(butyl acrylate) Polybutadiene-acrylonitrile Polybutadiene-styrene Poly(butylene terephthalate) Polycarbonate
Polychlorotrifluoroethylene Poly(diallyl phthalate) Polyethylene Polyether block amide Polyetheretherketone Poly(etherimide) Polyether ketone Poly(ethylene oxide) Poly(ether sulfone) Poly(ethylene terephthalate)
Thermoplastic elastomer polyether 聚酯热塑弹性体
PETG Poly(ethylene terephthalate) glycol 二醇类改性PET PEUR Poly(ether urethane) PF Phenol-formaldehyde resin PFA Perfluoro(alkoxy alkane) PFF Phenol-furfural resin PI Polyimide PIB Polyisobutylene PISU Polyimidesulfone PMCA Poly(methyl-alpha-chloroacrylate) PMMA Poly(methyl methacrylate) PMP Poly(4-methylpentene-1) PMS Poly(alpha-methylstyrene) POM Polyoxymethylene, polyacetal PP Polypropylene PPA Polyphthalamide PPE Poly(phenylene ether) PPO Poly(phenylene oxide) deprecated PPOX Poly(propylene oxide) PPS Poly(phenylene sulfide) PPSU Poly(phenylene sulfone) PS Polystyrene PSU Polysulfone
PTFE Polytetrafluoroethylene PUR Polyurethane PVAC Poly(vinyl acetate) PVAL Poly(vinyl alcohol) PVB Poly(vinyl butyral) PVC Poly(vinyl chloride) PVCA Poly(vinyl chloride-acetate) PVDC Poly(vinylidene chloride) PVDF Poly(vinylidene fluoride) PVF Poly(vinyl fluoride) PVFM Poly(vinyl formal) PVK Polyvinylcarbazole PVP Polyvinylpyrrolidone
S/MA Styrene-maleic anhydride plastic SAN
Styrene-acrylonitrile plastic
聚醚型聚氨酯 酚醛树脂 全氟烷氧基树脂 酚呋喃树脂 聚酰亚胺 聚异丁烯 聚酰亚胺砜 聚α-氯代丙烯酸甲酯聚甲基丙烯酸甲酯 聚4-甲基戊烯-1 聚α-甲基苯乙烯 聚甲醛 聚丙烯 聚邻苯二甲酰胺 聚苯醚 聚苯醚
聚环氧(丙)烷 聚苯硫醚 聚苯砜 聚苯乙烯 聚砜 聚四氟乙烯 聚氨酯 聚醋酸乙烯 聚乙烯醇 聚乙烯醇缩丁醛 聚氯乙烯
聚氯乙烯醋酸乙烯酯 聚(偏二氯乙烯) 聚(偏二氟乙烯) 聚氟乙烯 聚乙烯醇缩甲醛 聚乙烯咔唑 聚乙烯吡咯烷酮 苯乙烯-马来酐塑料 苯乙烯-丙烯腈塑料
SB Si SMS SP SRP TEEE TEO TES TPEL TPES TPUR TSUR UF UHMWPE UP VCE VCEV VCMA VCMMA VCOA VCVAC VCVDC Styrene-butadiene plastic 苯乙烯-丁二烯塑料 Silicone plastics
有机硅塑料
Styrene/alpha-methylstyrene plastic
苯乙烯-α-甲基苯乙烯塑料 Saturated polyester plastic 饱和聚酯塑料 Styrene-rubber plastics 聚苯乙烯橡胶改性塑料 Thermoplastic
Elastomer,Ether-Ester
醚酯型热塑弹性体 Thermoplastic Elastomer, Olefinic 聚烯烃热塑弹性体 Thermoplastic Elastomer, Styrenic 苯乙烯热塑性弹性体
Thermoplastic elastomer 热塑(性)弹性体 Thermoplastic polyester 热塑性聚酯 Thermoplastic polyurethane 热塑性聚氨酯 Thermoset polyurethane 热固聚氨酯 Urea-formaldehyde resin 脲甲醛树脂 Ultra-high molecular weight PE 超高分子量聚乙烯 Unsaturated polyester 不饱和聚酯 Vinyl chloride-ethylene resin 氯乙烯/乙烯树脂
Vinyl chloride-ethylene-vinyl 氯乙烯/乙烯/醋酸乙烯共聚物 Vinyl chloride-methyl acrylate 氯乙烯/丙烯酸甲酯共聚物 Vinyl chloride-methylmethacrylate 氯乙烯/甲基丙烯酸甲酯共聚物Vinyl chloride-octyl acrylate resin 氯乙烯/丙烯酸辛酯树脂 Vinyl chloride-vinyl acetate resin 氯乙烯/醋酸乙烯树脂 Vinyl chloride-vinylidene chloride
氯乙烯/偏氯乙烯共聚物
第二篇：初中高分英语作文常用写作技巧
初中英语作文评分标准
初中英语写作技巧有哪些?英语作文怎么写才能得高分?这可能是很多学习英语的人想要问的问题，这里总结以下提高英语写作分的技巧。
一.了解中考英语写作评分标准。
我们知道中考英语分数，评卷老师绝对不是胡乱按照自己的感觉来给的，他们都有一个统一的标准，如果我们想要得高分的话，就得了解中考英语作文的评分标准，从而有目标性的提高自己的英语写作能力，有计划的得高分。下面是中考英语作文的评分标准。 中考英语作文评分标准：
每年根据题目的不同，评分标准都会有所更改，但是其中比较大的几个项目是基本不变的。
1.内容分7分。要求包含题目所给出的要点。若要点缺失，可酌情扣分。比如09年中考作文“I want to do something for my school”，若没有写一件具体的事情，是要扣3分以上的;若写的事情太过 于虚幻，没 有实际内容，也会扣1-2分。
2.语言分8分。首先是字数，少于60字的作文要酌情扣分。其次是语法和拼写错误，每个扣0.5，重复错误不计;标点错误每4个扣0.5 3.组织结构分3分，也就是我们常说的文采分。根据学生使用复杂句型、单词和谚语、俗语的情况来加分。 这个评分标准看起来并不复杂，但是在实际操作过程中，这个评分标准会产生不少微妙之处，了解了这些微妙之处，同学们才能有的放矢，有针对性地写出高分作文。
1).60字绝不仅仅是60字那么简单
如前所述，中考英语作文要求60字以上，标点符号不算，少了就要扣分。但是60字的作文能不能得高分?从我们拿到的实例作文来看，16分以上的作文，没有少于75字的，甚至少于80字的也少之又少。当然，也极少有超过100字的，因为中考试卷的短线格一共80个，在格子下面大约还有2行的空间，可以加20字左右，再多阅卷人就很难看清了，也会影响卷面的美观(后面我会说“卷面分”的问题)。所以，同学们如果想让作文得到高分，最好是让字数在75-100字之间。
2).如何有组织、有计划地拿文采分?
有很多老师和同学说，要拿到文采分，同学们需要在平时做大量的阅读，积累好词好句，还得加上考试中较好的发挥。这个观点没有问题，但是对于初三的同学来讲，我们仍然可以更有方向性的去准备自己的作文，事半功倍地争取文采分。
原则上讲，前15分少于14分的一般不给文采分，然而在实际操作中我们发现，也有不少的前面得12或13分的同学得到了1-2分的文采加分。
这是因为老师在阅卷的时候给分是分两大部分给的，前15分是往下扣、后3分是往上加，也就是说对前15分，阅卷老师们是在找扣分的点;后3分，阅卷老师们是在找加分的点。所以并不是全文都要写得精彩绝伦才能得到文采分，只要文章中有1个亮点，基本就可以争取到1分的文采分(当然，3分的文采分是很难全部拿到的)。而这些亮点，是可以提前准备的。例如，有一些“万金油”式的复杂句型，例如强调句型、only相关的倒装句等，只要同学们多操练几次，几乎是一定能用到作文当中，从而为自己争得文采分的。
3.真的有“卷面分”吗?
很多家长和同学，尤其是部分书法并不是十分整洁的同学，都会关心是否真的有“卷面分”的存在，在这里我要告诉大家，是有的。虽然在阅卷标准里面并没有卷面分这一项，但是这个分数却真切地反映在了同学们的分数里面。
如前所述，中考作文的分数包含3个部分，但是大多数熟练了的老师在阅卷的时候并不是按这3个部分逐项打分的，而是在第一遍读完全文之后，心里已经形成了一个“印象分”，然后再细读第
二、三遍，把印象分分配到3个部分里面。因此，这个“印象分”就非常重要，而同学们的书法，也正是在这个环节，影响到了自己的分数。所以初三的同学们，如果你的书法不好，现在开始练书法还来得及。同学们并不需要写的很漂亮，符合3个简单的标准即可：没有斜体、没有连笔、涂改较少。
二、多积累。
看了上面的评分标准，我们知道除了一些技巧性的东西之外最主要的还是要多积累。比如一些有文采的句子，语法正确，或者结构清晰，这些都是平时自己要多背多记才能够在中考中写出好的作文。
第三篇：考研英语小作文常用高分句型
考研小作文常用高分句型 应用文高分句型
辞职信 开头常用句式
This is to inform you that I intend to resign from my current potion. I am writing to inform you about my decision of resignation. I feel very sorry for having to give up my position as … I feel reluctant to give up my present job, but I …
I am sure it will come as no surprise that I wish to resign my position as…
结尾常用句式
I sincerely hope that you approve of my resignation. I am sorry for any inconvenience caused. Thank you for your caring and consideration in these several years’ working. I would appreciate it if you would accept my resignation before… Thank you very much for offering me the opportunity to work with the outstanding staff here.
My best wishes for the company’s continued growth. 其他常用句式
I have enjoyed working with you and the staff in … company in the … years. You have given me plenty of help and encouragement. I find it is inappropriate for me to take the position as … for the following reasons. I have expected the job to be interesting and challenging, which turns out to be the opposite. I will be able to help you find a replacement for my position.
Thank you for all the patience, wisdom, and experience that you shared with me. There are a few factors involved that I find intolerable. Please let me to take this chance to thank you for the rewarding experience I have enjoyed during my employment.
请求信 开头常用句式
I am writing to formally request to … We shall be greatly obliged if you … May I ask you to consider … Could you be kind enough to … I am writing to seek your assistance in …? I am writing to request you to make an investigation on the matter of … Will you be so kind enough to give me some information about … Would you be kind enough as to…? I would very much like to ask for your permission with this letter to…?
结尾常用句式
I am looking forward to hearing from you. Thank you for your kind assistance. I shall greatly appreciate your answering my questions. I would like to thank you for your generous help in this case. I should remain grateful to you for the great help…
I would appreciate your considering this matter and getting back to me at your earliest convenience. I do appreciate the favorable consideration you have shown to me. Thank you for your attention to these requests.
其他常用句式 I’d like to suggest that… May I suggest that … In my opinion …
I would like to make a recommendation that… I am writing to advise you of… If I were you, I would… Could you possibly…? Is there any possibility of…? The reasons for … is that…
If you have questions, please feel free to contact me at…
建议信 开头常用句式
You have asked me for some advice on how to improve … I will try to give some useful suggestions. You asked for advice concerning (with regard to)… and I will try to make some suggestions. I have received your letter saying… I recommend that…
I am writing to you to present what I think on the further improvement of…
I am writing in reply to …
I am writing to express my views about … I would like to suggest that… I would recommend that… 结尾常用句式
I hope that my suggestions are helpful for your decision-making anyway. I would be more than happy to see improvement in this regard. Thank you for your attention. I believe that you will take my suggestions into serious account. Please take good consideration of my advice. Thank you. I hope you find these suggestions/proposals practical. I would be ready to discuss about this matter with you to further details. Whatever you decide to do, good luck with your studies/work!
其他常用句式
I feel that it would be beneficial if… If I were you, I would… You may consider doing…
It would seem to me that you could… As you may agree that…
求职信 开头常用句式
I am writing in response to your advertisement in … I would like to apply the vacancy of… I am writing this letter to submit my application for…
I write this letter to apply for the position that you have advertised in … I would like to apply for the vacancy of … advertised in …
I am writing to express my interest in your advertised position for … In reply to your advertisement in …, I beg to apply for the post of … in your company. I am writing to apply for the position that you have advertised in… Your advertised position of … interests me…
I am writing this letter to recommend myself as a qualified candidate for the job of … you have advertised on…
结尾常用句式
I would be most grateful if you grant me a personal interview. Any favorable consideration of my application will be highly appreciated. Your prompt response will be much appreciated. I should be pleased to attend for an interview at your convenience, when I could give you further details concerning myself. Thank you for considering my application and I am looking forward to hearing from you. I have enclosed my resume that gives details of my qualifications and experience. I hope I may be granted an interview, when I can explain my qualifications more fully. I should be pleased to attend for an interview at your convenience, when I could give you further details concerning myself.
其他常用句式
I graduated from … University majoring in… I have been working in … since my graduation, and I have therefore attained a fair knowledge and experience in this field. Upon graduation, I first worked as… The following job was… and currently I am working for…
The kind of work in which your company is engaged particularly interests me. I feel I have the necessary qualifications and experience needed for the position for… advertised in the newspaper. It seems to me that my working experience, together with my education background, has given me an ideal preparation to assume the role of … in a firm such as yours.
道歉信 开头常用句式
I am writing this letter to apologize to you for … I would like to express my deepest apology for not being able to … I am writing this letter to apologize to you for my failing to… I am writing this letter to express my regret … I feel dreadful about …
I must beg your forgiveness for … I am very sorry to say that … I am writing to apologize for … Please accept my sincere apology for … Here is my deepest apology for… I am terrible sorry, but…
结尾常用句式
Please allow me to say sorry again. Will you please accept my apology? I am sorry for any convenience caused. I hope you can accept my apologies. Will you accept my apology? Once again, I am sorry for any inconvenience caused. Please allow me to say sorry again. I sincerely hope that you will be able to think in my position and accept my apologies. 其他常用句式
Would you mind if I change the appointment time? Would it be convenient for you…? I am really sorry for the trouble. It is very kind of you to ask us to … But, to our regret, we cannot accept it. I am sorry I cannot … and I trust that you will be able to understand. I want to let you know how regretful I am feeling now. I am sorry that I will not be able to … due to …
I hope that this does not cause you too much inconvenience.
I want you to know how badly we feel about it and to assure you that it will not happen again. Thank you for being patient with us. In order to avoid … happening again, I have …
感谢信 开头常用句式
Thank you very much for…
I am writing this letter to thank you for … I am writing to express my sincere thanks for … I feel greatly indebted to you for … I really do not know how to express my gratitude for your help. I would like to convey in this letter my heartfelt thanks to you for… I am writing to tell you how greatly I appreciate all you have done for me…
I don’t know how to thank you for your kindness to me. I warmly appreciate for your hospitality. We are indebted to you for your help. With deepest gratitude I write you’re here few lines.
结尾常用句式 Thanks again! I do appreciate it. I appreciate more than I can say. I must thank you again for your generous help. My true gratitude is beyond the word’s description. I feel most obliged to thank you once more. I am most grateful for your selfless donation. Please accept my gratitude as always. Best wishes for your health and every happiness. My thanks to you for your kindness and assistance when I …--and my love for you, always! 其他常用句式
I am writing to thank you, on behalf of …, for the lovely time we had at your party last night. I feel deeply indebted to you and I really do not know how to thank you enough for your help. If it had not been for your assistance in giving me first aid, I fear that the consequence might have been much more serious. It is generally held that it was your quick-witted response in that emergency that has led to this satisfactory outcome. Thank you very much for your kind hospitality and the honor you showed me during my visit… It was nice of you to.. Please have no hesitation in writing to me should you want me to do something for you…
It was kind and thoughtful of you to…
申请信 开头常用句式
Your advertisement made me unable to wait to write this application for the post because I think I have the qualifications you are seeking. I am writing to apply for the advertised post of … I would like to apply for admission to your college. I would like to further my studies in … department of your honored university. I would like to apply for the graduate program of … in your university. I would like to apply for the scholarship that your department offers to students from other countries. I am writing to you in the hope that I may obtain an opportunity to further my study in … towards a master’s degree in your university. I would like to apply for admission to your graduate school of ..
结尾常用句式
Looking forward to your favorable reply. I hope you will kindly send me an application form. Thank you for considering my application and I am looking forward to hearing from you. I greatly appreciate any of your favorable consideration of my application. I would be very grateful if you would consider my application and could send me some information about the scholarship. Thank you for your consideration. I look forward to your reply. I would be grateful if you can grant me an early reply about the result of my application. If any scholarships are available, I would appreciate it if you would send me the necessary application forms. I hope my academic background will meet your general entrance requirements for graduate study.
其他常用句式
I have obtained my BA in … from University.
I am a senior student now and expect my graduation next summer from … University. I major in … and did some research work during my undergraduate years. Since graduation I have been working in … which specializes in… Now I am particularly interested in…
Would you please send me the necessary application forms and any further details about …
I hope to further continue my research on …
Enclosed please find two letters of recommendation and my transcript. I am interested in your MA programs in …, and wish to enter this program. My background is as follows: …
投诉信 开头常用句式 I am writing to complain about/that…
I am writing to inform you that I am dissatisfied with you… I think it’s high time you realize… I am writing to make a complaint about…
I feel sorry to trouble you but I am afraid that I have to make a complaint about…
I am writing to express my disappointment/ dissatisfaction/ concern about…
I am most reluctant to complain, but…
I am writing to advise you that I find… inconvenient I wish to draw your attention to the problem / fault… that I bought… I venture to write for complaining about…
I feel sorry to trouble you but I am afraid I have to make a serious complaint. It is with great reluctance that I must inform you that … I regret to inform that …
Thank you for your … which arrived yesterday. Unfortunately, …
结尾常用句式
I would be grateful if you could…
I trust you will take my complaint seriously and… I will appreciate it very much if you could… I must have you fully understand that without a satisfying solution, I will reserve my right to take legal action. Frankly speaking, I am not prepared to put up with the situation any more. On the condition that this one proves to be unacceptable, I will receive a refund. I would appreciate it if you could…
I understand you will give immediate attention to this matter. I look forward to your dealing with these problems without delay. I would like to have this matter settled by the end of… I shall be obliged if you will look into …
I understand you will give immediate reply to this matter. If I must be constantly annoyed in this matter, I shall have to …
其他常用句式
The reason for my dissatisfaction is…
Under these circumstances, I find it difficult to… I can no longer tolerate / bear… For one thing… For another…
I hope we can manage to sort his out amicably. Therefore, I hope to change for another … or I declare a refund. We know that you are not generally careless, but we would like your assurance that this will not happen again. I recently ordered / purchased from you … I must protest against …
I find it appalling and distressing that…
I received such poor service that I felt I should bring to your attention. If I receive this type of treatment again, I will take my business elsewhere.
询问信 开头常用句式
I am very eager to receive information about … I am writing for information about …
It would be grateful if you could furnish us with the information about …
We would appreciate some information from you about …
I am writing to see if it is possible for you to provide me with information concerning …
I would be grateful if you could give me some information about … I would like to know it you have some information about …
I am writing to see if it is possible for you to provide me with information regarding …
Would you be kind enough to provide me with some information about …?
I would like to have some information about …
结尾常用句式
Your earliest reply would be mostly appreciated. Your immediate response is enthusiastically expected. I would highly appreciate your prompt reply. I am looking forward to your due attention and quick response. We are looking forwards to your prompt attention to this letter. Thank your for your consideration.
其他常用句式
Frankly speaking, I am quite ignorant of … Therefore, I am writing to ask for your help. I would be most grateful if you could send me information about …
Another matter I need information is …
Another point I am still not sure is that … I would also like some clarification on …
It would be great if you could supply me with the following information. I would also like to inquire if …
邀请信 开头常用句式
We would like to invite you to … I would like to see your presence at … May I ask you to consider … I would be most grateful if … I wonder if you could come to … We should be grateful if you could … I take the pleasure to invite you to …
It is with the greatest pleasure that I write to cordially invite you to … It gives me the greatest pleasure to invite you to… We should be very grateful if you could…
结尾常用句式
I would feel honored if you could come. I do hope that you can make it. I’m looking forward to your participation in … I look forward to hearing from you. I do hope that you will be able to come. I would like to meet you there and please let me know your decision. My family and I would feel honored if you could come. My family and I look forward to seeing you. We should be very please if you could honor us with your presence. Would you please drop me a line to let me know if you can come? Thank you for your time and consideration.
其他常用句式
As you are a close friend of our family, my parents and I would very much like you to participate in the … and share our joy. The occasion will start at … There will be activities such as …
We should be very pleased if you could come and have dinner with us this evening. Would you like to join us to celebrate …? Would you care to come to my house for …? Would you please consider the possibility of … ? If that time does not fit into your schedule, please feel free to suggest a day that is more convenient to you.
祝贺信 开头常用句式
It was exciting news for me to learn of …
Please accept my sincere/hearty/warm congratulations on … It was a great pleasure to send you my congratulations on … I was delighted to learn of your success /achievements in … You don’t know how excited and happy we felt at the news of … I am really happy to learn that you have been elected… It is with great pleasure that I hear of your success. I was very delighted to hear the news that you…
Allow me to convey my congratulations on your promotion to… Heartiest congratulations upon your …
结尾常用句式 Wish you good luck! We wish to share your honor and joy. I wish you success and fulfillment in the years ahead. May all go wonderfully in your new post! May every happiness be yours! All my best wishes for an even more prosperous future/successful career! May each succeeding year bring you great happiness and prosperity. Every good wish to you for much health, happiness, and prosperity!
其他常用句式 Good news travels fast! I am pleased to know that you have … It was a splendid performance / a great triumph. I know that… This shows that… I am delighted that…
I have just leant the good news that you…
Best wishes for your greater success in all that you undertake. I only want to let you know how happy I am for you. Working as … is an exciting way for you to play an important role in … It is with the greatest pleasure that I offer you my sincerest congratulations on your …
I am sure a talented person as you will make great achievement and live a fuller life.
第四篇：四级高分作文常用过渡词语典型句
一、用于驳斥的比较的常用句型
1. In general， I don’t agree with...
2. In my opinion， this point of view doesn’t hold water.
3. The chief reason why...， is that...
4. There is no doubt that...
5. It is not true that...
6. It can be easily denied that...
7. We have no reason to believe that...
8. What is more serious is that...
9. But it is a pity that...
10. Besides， we should not neglect that...
11. But the problem is not so simple. Therefore....
12. Others may find this to be true， but I believe that...
13. Perhaps I will question why...
14. There is a certain amount of truth in this， but we still have a problem with regard to...
15. Though we are in basic agreement with...， but...
16. What seems to be the trouble is...
17. Yet differences will be found， that’s why I feel that...
18. It would be reasonable to take the view that...， but it would be foolishto claim that...
19. There is in fact no reason for us to believe that...
20. What these people fail to consider is that...
21. It is one thing to insist that...， it is quite another to show that...
22. Wonderful as A is， however， it has its own disadvantages too.
23. The advantages of B are much greater than A.
24. As advantage sounds ridiculous when B，s advantages are taken into consideration.
第五篇：分子生物学实验室常用有毒药品.
分子生物学实验室有毒常用药品
1. 溴化乙锭(EB :具有强诱变致癌性,使用时一定要戴一次性手套,注意 操作规范,不要随便触摸别的物品。
2.DEPC(焦碳酸二乙酯 :闻起来香香甜甜的 , 可是害人不眨眼 ! 一种强有力的 蛋白质变性剂 , 而且怀疑是致癌剂 . 开瓶时将瓶子远离你 , 内压可导致溅泼 . 操作 时戴合适的手套 , 穿工作服 , 并在化学通风橱里进行 . 3.PMSF(苯甲基磺酰氟 :老板说是神经毒 !!! 是一种高强度毒性的胆碱酯酶 抑制剂 . 它对呼吸道黏膜 , 眼睛和皮肤有非常大的破坏性 . 可因吸入 , 咽下或皮肤 吸收而致命 . 戴合适的手套和安全眼镜 , 始终在化学通风橱里使用 . 在接触到的情 况下 , 要立即用大量的水冲洗眼镜或皮肤 , 已污染的工作服丢弃掉 . 4. 乙腈,易挥发易燃,是一种刺激物和化学窒息剂,通风橱中远离热、火。 5. 放线菌素 D ,是一种致畸剂和致癌剂,通风橱中操作。 6.alpha-鹅膏蕈毒环肽,具有强毒性,可能致命。
7.NN-亚甲双丙烯酰胺,有毒,影响中枢神经系统,切勿吸入粉末。 8. 甲醇,有毒,能引起失明。
9. 乙酸 (浓的 :可能因为吸入或皮肤吸收而受到伤害, 要戴手套和护目镜, 最好在化学通风橱中操作。
10. 过硫酸酸铵:对粘膜和上呼吸道、眼睛和皮肤又较大危害性,吸入可致 命。操作时戴手套、护目镜。始终在通风橱中操作。
11. 氯化铯:可因吸入、咽下或皮肤吸收而危害健康。操作时戴手套和护目 镜。
12.DTT: 很强的还原剂, 散发难闻的气味。 可因吸入、 咽下或皮肤吸收而危 害健康。当使用固体或高浓度储存液时,戴手套和护目镜,在通风橱中操作。 13. 甲醛:毒性较大且易挥发, 也是一种致癌剂, 易通过皮肤吸收, 对眼睛、 粘膜和上呼吸道有刺激和损伤作用。避免一如其挥发的气雾。戴手套和护目镜。 始终在通风橱中操作。远离热、火花及明火。
14.TRIzol , 对眼睛有刺激性, 腐蚀皮肤。 有一次不小心溅出一小滴在脸上, 马上就红了, 过一会儿感觉到疼, 一周之后才好。 如果溅上, 马上用大量的水冲 洗。
大家在实验室里, 接触到的化学试剂多半都有危害性, 紫外灯, 如果离心机 不是很好的话的噪声污染, VORTEX 会导致手指需要震动,等等,所以每个人都 应该注意保护自己,而不能因为图省事或者别的什么原因而放松对安全的注意。
另外就是注意规范操作,搞微生物的尤其要注意,不要实验室感染。 15. 叠氮钠,有毒,阻断细胞色素电子运送系统 16. 氟化钠,有毒可致命,通风橱中操作
17. 放射性物质(同位素标记时 ,要戴手套,护目镜,穿工作服,最好买试 剂盒(如果有商品化的
18.beta-巯基乙醇,可致命,对呼吸道、皮肤和眼睛有伤害 19. 氨甲蝶呤,致癌和致畸
20. 甲醛,有毒,易挥发,致癌,对眼睛和呼吸道有刺激损伤,通风橱中远 离热和火 21. 双丙烯酰胺,神经毒剂,效应累积 22. 二甲胂酸钠,致癌,有毒 23. 链霉素,致癌,引起过敏反应
24. 哌啶,有毒,对眼睛和呼吸道有影响,远离热和火 25. 腐胺,易燃,有腐蚀性,远离热和火 26. 硫酸镍,致癌,引起遗传损伤 27. 肼,有毒,能爆炸,院里热和火