英文实验记录

Sentence Template for Notebook and Report WritingPfizer Project Management TeamApril 12, 2007Part 1: 反应前的装置描述1.1: A 3 L three-necked round bottom flask equipped with mechanical stirrer (or magneticstirrer), addition funnel and thermometer (or Dean-Stock; drying tube)1.2: All flasks used in the reaction were heated under vacuum for 30 minutes and purged withN2 for 10 minutes. (无水反应装置)Part 2: 加料2.1: 不同的顺序和表达2.1.1: A 3 L three-necked round bottom flask equipped with mechanical stirrer (or magneticstirrer), addition funnel and thermometer (or Dean-Stock; drying tube) were charged with A(10 mL, 1 mole), B (2 g, mole) and C (50 mL),2.1.1.1: a solution of D (10 g, 1 mole) in E (20 mL) was added dropwise (via addition funnelor syringe) at 10o C (or while maintaining gentle reflux; while keeping inner temperaturebetween 10o C – 30o C) under N2 （液体滴加到反应液中）2.1.1.2: D (10 g, 1 mole) was added in portions during a period of 1 hr (固体分批加入到反应液中)2.1.1.3: D (10 g, 1 mole) and E (20 mL) were added in turn2.2:To a solution (mixture, suspension or slurry) of A (10 mL, 1 mole) and B (2 g, mole) in C (50mL)2.2.1: was added dropwise a solution of D (10 g, 1 mole) in E (20 mL) with stirring at 10o C(or while maintaining gentle reflux; while keeping inner temperature between 10o C –30o C)under N22.2.2: was added D (10 g, 1 mole) in portions during a period of 1 hrSentence Template for Notebook and Report Writing WuXiPharmaTech Co., Ltd.Confidential Page 2 of 72.2.3: were added D (10 g, 1 mole) and E (20 mL) in turn2.3:2.3.1: A solution of D (10 g, 1 mole) in E (20 mL) was added dropwise into a solution(mixture or suspension) of A (10 mL, 1 mole) and B (2 g, mole) in C (50 mL) at 10o C (orwhile maintaining gentle reflux; while keeping inner temperature between 10o C –30o C) underN22.3.2: D (10 g, 1 mole) was added into a solution (mixture or suspension) of A(10 mL, 1mole) and B (2 g, mole) in C (50 mL) in portions2.3.3: D (10 g, 1 mole) and E (20 mL) were added into a solution (mixture or suspension) ofA (10 mL, 1 mole) andB (2 g, mole) inC (50 mL) in turn2.4:2.4.1: A solution of BuLi or BH3/THF (10 mL, 1 mole, 2.5 M in hexane) was cannulated intoaddition funnel or into a solution A in solvent B2.4.2: A solution of BuLi or BH3/THF (10 mL, 1 mole, 2.5 M in hexane) was added into asolution of A in solvent B via cannula, dropping funnel or syringe over a period of hrs Part 3: 反应3.1: 无溶剂反应A (1 g, 1 mol) andB (1 g, 1 mol) were dissolved in solvent C, evaporated to dryness andheated for x hours at x o C3.2: 催化量的反应A (20 mL, 142 mmol) and catalytic amount (a trace amount or two drops) ofB were addedinto a solution of C (4.549 g, 46.4 mmol) in D(120mL) at 0 o C3.3: 闷罐反应或封管反应A solution of A(x g, x mol) in methanol (x mL) saturated with NH3 (or other gas such as: CO,CO2, H2S) was stirred under 50 Psi at x o C for x hours in a 50 mL of sealed tube or autoclave.Sentence Template for Notebook and Report Writing WuXiPharmaTech Co., Ltd.Confidential Page 3 of 73.4: 有气体参与的反应3.4.1: A solution of A (x g, x mol) in methanol (x mL) saturated with HCl was stirred at x ℃.3.4.2: Ozone was bubbled into a solution of A (x g, x mol) in MeOH (x mL) at x o C for 15minutes. After excess O3 was purged by N2, Me2S (x mL) was added at x o C.3.4.3: Gas was bubbled into a solution of A (x g, x mol) and B (x g, x mol) in solventC (xmL) at x o C for x hours.3.5: 混合溶剂参与的反应3.5.1: To a solution of A (x g, x mol) in a mixture of solvent B (mL) and solvent C (x mL) (ora mixed solvent of B and C) was added D (x g, x mol) at x o C, the reaction mixture wasallowed to stir (reflux or heat) for x hrs.3.5.2: To a solution of A (x g, x mol) in 10: 1 aqueous acetone (x mL) was added B (x g, xmol) followed by addition of C (x g, x mol), the reaction mixture was allowed to stir (refluxor heat) for x hrs.3.6: 分水器分水的反应3.6.1: A (x g, x mol) and B (x g, x mol) in benzene or toluene (x mL) were refluxed for xhours with azeotropical removal of water.3.6.2; A mixture of A, B and TsOH.H2O (56.91 g, 0.3 mol) in toluene (400 mL) was heated toreflux and remove water by Dean-Stark trap.3.7: 氢化反应To a solution of A (x g, x mol) in EtOH (x mL) was added Pd-C or Ra-Ni orPd(OH)2/C (10%,x g) under N2. The suspension was degassed under vacuum and purged with H2 several times.3.7.1: The mixture was stirred under H2 (x psi) at x ℃for x hours. [氢化瓶或高压釜] 3.7.2: The mixture was stirred under H2 balloon at x ℃for x hours. [常压氢化如气球反应]3.7.3: A mixture of A (x g, x mol) and Ra-Ni (x g) in EtOH (x mL) was hydrogenated under50 Psi of hydrogen pressure for x hours at room temperature.Sentence Template for Notebook and Report Writing WuXiPharmaTech Co., Ltd. Confidential Page 4 of 7Part 4: 反应条件或过程描述4.1: The reaction mixture (solution or suspension) was stirred at 5o C for 2 hrs and then kept atroom temperature (or ambient temperature) for another 2 hrs (or overnight)4.2: The reaction mixture (solution or suspension) was refluxed (heated to reflux) or heated at60o C for 2 hrs (or overnight)4.3: The reaction mixture (solution or suspension) was allowed to reflux (or heat to reflux) for2 hrs (or overnight)4.4: The reaction mixture (solution or suspension) was allowed to warm to temperature during2 hrs and reflux (or heat to reflux) for 2 hrs (or overnight)Part 5: 反应监测5.1: Taking sample from the reaction mixture (solution or suspension) by dropping tube orsyringe. After workup, check the reaction via TLC, LC-MS or HPLC etc.. (预处理) 5.2: 反应状态或终点描述5.2.1: The reaction was complete (incomplete or messy) detected (determined or confirmed)by TLC (PE/EtOAc 4:1), LC-MS, HPLC or NMR5.2.2: TLC (PE:EtOAc=1:1) or HPLC (107757-088-1) showed or indicated that the reactionwas complete.5.2.3: TLC (PE:EtOAc=1:1) or HPLC (107757-088-1) showed the starting material wasconsumed completely.5.2.4: TLC (PE:EA=1:1) or HPLC (107757-088-1) showed the reaction didn’t work at all ormost of starting material was still remained.5.2.5: The starting material was consumed completely, but no desired compound was detectedor determined by MS (106657-078-1) or LC-MS (106657-078-1).5.2.6: Several spots were shown on TLC.5.2.7: Only a trace amount of desired compound was detected by MS (106657-078-1) orLC-MS (106657-078-1) or HPLC (106657-078-1) or TLC (PE:EtOAc=1:1).5.2.8: The desired compound could not be isolated, separated or purified by chromatographyor prep. HPLC due to poor yield or poor solubility.Sentence Template for Notebook and Report Writing WuXiPharmaTech Co., Ltd. Confidential Page 5 of 75.2.9:1H NMR (106675-010-2) or MS confirmed the obtained (or isolated) compound is notthe desired compound. The reaction was failed.Part 6: 反应淬灭6.1: An aqueous solution of A (10 mL) was added dropwise into the reaction mixture once thereaction mixture (solution or suspension) was allowed to warm (or cool) to -5o C or roomtemperature (ambient temperature).6.2: The hot (or cold) reaction mixture (solution or suspension) was poured into water (icewater) or poured onto ice.6.3: The reaction mixture (solution or suspension) was concentrated (distilled) under reducedpressure (in vacuum) or evaporated to remove MeOH (THF; DMF etc.) or excess SOCl2(reagent). Then the reaction residue (or the residual) was diluted with solvent and poured intowater (ice water) or poured onto ice.Part 7: 分液提取7.1: The residue was partitioned between ethyl acetate (100 mL) and 1N aq. HCl (50 mL).The separated organic layer was washed with water, dried over (Na2SO4 or MgSO4) andevaporated to dryness.7.2: After quenching the reaction, the reaction mixture was poured into separatory funnel andseparated.7.3: The aqueous layer (or phase) was extracted with organic solvent (40 mL) twice (or Xtimes). The combined organic layers were (or the organic layers were combined and) washedwith an aqueous solution of A (50 mL) or water and dried over Na2SO4 or MgSO4.7.4: The combined aqueous layers were extracted with solvent (40 mL) twice (or X times) toremove neutral impurities. The aqueous phase was acidified (or basified) with aqueous HCl(or NaHCO3) till PH = X and extracted with organic solvent.7.5: The combined organic layers were (or the organic layers were combined and) washedwith an aqueous solution of A (50 mL) or water and dried over Na2SO4 or MgSO4. Sentence Template for Notebook and Report Writing WuXiPharmaTech Co., Ltd. Confidential Page 6 of 7Part 8: 浓缩蒸发8.1: After filtration via filter paper or Celite pad, the organic layer (or extract) was concentrated under reduced pressure (or in vacuum) or evaporated to dryness to provide(afford; give or yield) an oil (or foam) (which solidified on standing) or a white solid.8.2: The organic layer (or extract) was filtered and concentrated under reduced pressure (or invacuum) or evaporated to dryness to provide (afford or give) A (10 g, 0.5 mole) an oil (orfoam) (which solidified on standing) or a white solid.8.3: After removal of solvent by evaporation or concentration, A (10 g, 0.5 mole) was obtained (or prepared) an oil (or foam) (which solidified on standing) or a white solid.8.4: The extract in CH2Cl2 was evaporated to dryness and then swapped with toluene toremove residual CH2Cl2.Part 9: 几种常见的后处理描述9.1: The reaction mixture or solution was concentrated to dryness. [适用于反应液不需要quench]9.2: After the reaction mixture was cooled to 0 ℃, the reaction mixture was quenched byaddition of x mL of H2O, followed by x mL of 15% aqueous NaOH. After being stirred atroom temperature for x hour, the solid was removed by filtration (or the mixture was filteredthroughCelite pad to remove by-product). The filtrate was concentrated to dryness to givecrude product. [LiAlH4 反应的经典后处理]9.3: The mixture was diluted with water (x mL), neutralized with solid K2CO3 until no CO2was evolved. [适用于酸性反应液的后处理]9.4: The suspension was filtered through a pad of Celite or silica gel and the pad or filter cakewas washed with EtOH (x mL×x). The combined filtrates were concentrated to dryness togive product (x g, x%) as. [适用氢化反应的后处理, 或者难于过滤的反应液的后处理, 但要注意的是这里需要的是滤液而不是固体才能添加助滤剂]9.5: The reaction mixture was poured into x mL of ice-water carefully and the organic layer orphase was separated. [产物在有机相里]9.6: The reaction mixture was poured into x mL of ice-water carefully and the aqueous phasewas washed with Et2O (x mL×x) [产品在水相] and acidified with 1N HCl to pH=3. TheSentence Template for Notebook and Report Writing WuXiPharmaTech Co., Ltd. Confidential Page 7 of 7resulting precipitate was collected by filtration or the resulting solution was extracted with EA(x mL×x).9.7: The reaction mixture was filtered and the filter cake was washed with x mL of solvent,dried in vacuum to give or afford product. [这里需要的是固体而不是滤液]9.8: The reaction mixture was quenched with x mL of saturated aqueous NH4Cl. The resultingsolution was extracted with EA (x mL×x). [适用于丁基锂等活泼金属有机物的后处理]9.10: The residue was triturated with ether and filtered to afford a white solid. (磨碎) 9.11: The crude product was purified by prep. HPLC to give A as a colorless thick oil whichwas solidified on standing. (静止固化)9.12: After prep. HPLC purification, the eluent was concentrated or evaporated to removeorganic solvents. The residual aqueous solution was lyophilized to give a white solid. (冷冻干燥)9.13: After concentration, the crude product was used directly for the next step withoutpurification.Part 10: 产品的纯化10.1: The crude product was purified by silica gel chromatography eluted with PE: EtOAc=10:1 to give product (x g, x%) as yellow solid.10.2: The crude product was purified by re-crystallization (or re-crystallized) from x solvent(x mL).10.3: The crude product was distilled in vacuum (x o C, x pressure) to afford pure product (x g,x%) as colorless liquid.10.4: The crude product was pre-purified by column chromatography followed by prep.HPLC purification or re-crystallization to afford pure product.__。

英语课外活动记录活动一：英语角英语角是一个学生自发组织的活动，旨在提高学生的英语口语表达能力。

在英语角，学生可以与其他学生自由交流，分享彼此的英语学习体验和技巧。

活动时间和地点每周五下午3点至5点，活动地点为学校图书馆一楼。

活动内容英语角主要以小组讨论的形式进行，每个小组由5到6个学生组成。

学生可以根据自己的兴趣和英语水平选择不同的小组。

小组设有专门的话题，例如旅行、电影、音乐等，并由一个小组负责人引导讨论。

在英语角中，学生需要使用英语进行交流，禁止使用母语。

这样可以有效提高学生的英语口语表达能力和听力能力。

活动收获参加英语角活动后，我的英语口语能力有了明显提高。

通过与其他学生的交流，我学到了很多新的词汇和表达方式。

同时，我也积累了更多的语言环境下的实战经验，从而更加自信地使用英语与他人交流。

活动二：英语电影欣赏为了提高学生的英语听力和理解能力，学校组织了一系列英语电影欣赏活动。

每月一次，在周末上午，学生可以在学校的多媒体教室观看一部英语电影，并进行相关讨论。

活动时间和地点每月的最后一个周六上午9点至11点，在学校多媒体教室。

活动内容活动开始前，学校会提前通知学生本次观影的电影名称和简介，并提供相关英文字幕。

学生可以提前了解电影的背景知识，为观影做准备。

在观影过程中，学生需要全程使用英语听力并尝试理解电影中的对话和情节。

观影后，学生会进行小组讨论，分享对电影的理解和各自的观点。

活动收获通过参加英语电影欣赏活动，我不仅巩固了自己的英语听力能力，还学到了很多地道的口语表达方式。

与其他学生的讨论也让我思考了电影中的深层意义，并提高了我的分析和思考能力。

活动三：英语俱乐部英语俱乐部是由学校的英语教师组织的活动，旨在培养学生对英语的兴趣和学习动力。

活动内容涵盖了英语听说读写的各个方面。

活动时间和地点每周三下午4点至6点，活动地点为学校语音实验室。

活动内容英语俱乐部的活动内容丰富多样，包括英语歌曲欣赏、阅读小组、口语练习等。

描述实验英文作文英文：I remember one of the most interesting experiments I participated in during my high school years. It was a science experiment where we had to test the effects of different types of fertilizers on the growth of plants. The purpose of the experiment was to determine which fertilizer would produce the healthiest and fastest-growing plants.We were divided into groups and each group was given a different type of fertilizer to use on their plants. My group was assigned to use organic fertilizer, while other groups used chemical and natural fertilizers. We planted the same type of seeds in identical pots and began our experiment.Over the course of several weeks, we carefully monitored the growth of our plants, taking note of their height, the number of leaves, and the overall health of theplants. It was fascinating to see how each plant responded differently to the type of fertilizer it was given. The plants that received organic fertilizer seemed to growtaller and had a richer green color compared to the others.In the end, we presented our findings to the class and it was clear that the plants given organic fertilizer had outperformed the others. It was a great learning experience for all of us and it showed the importance of using natural and organic methods for plant growth.中文：我记得在高中时参与的一个最有趣的实验是一个科学实验，我们需要测试不同类型的肥料对植物生长的影响。

Sentence Template for Notebook and Report WritingPfizer Project Management TeamApril 12, 2007Part 1: 反应前的装置描述1.1: A 3 L three-necked round bottom flask equipped with mechanical stirrer (or magneticstirrer), addition funnel and thermometer (or Dean-Stock; drying tube)1.2: All flasks used in the reaction were heated under vacuum for 30 minutes and purged withN2 for 10 minutes. (无水反应装置)Part 2: 加料2.1: 不同的顺序和表达2.1.1: A 3 L three-necked round bottom flask equipped with mechanical stirrer (or magneticstirrer), addition funnel and thermometer (or Dean-Stock; drying tube) were charged with A(10 mL, 1 mole), B (2 g, mole) and C (50 mL),2.1.1.1: a solution of D (10 g, 1 mole) in E (20 mL) was added dropwise (via addition funnelor syringe) at 10o C (or while maintaining gentle reflux; while keeping inner temperaturebetween 10o C – 30o C) under N2 （液体滴加到反应液中）2.1.1.2: D (10 g, 1 mole) was added in portions during a period of 1 hr (固体分批加入到反应液中)2.1.1.3: D (10 g, 1 mole) and E (20 mL) were added in turn2.2:To a solution (mixture, suspension or slurry) of A (10 mL, 1 mole) and B (2 g, mole) in C (50mL)2.2.1: was added dropwise a solution of D (10 g, 1 mole) in E (20 mL) with stirring at 10o C(or while maintaining gentle reflux; while keeping inner temperature between 10o C –30o C)under N22.2.2: was added D (10 g, 1 mole) in portions during a period of 1 hrSentence Template for Notebook and Report Writing WuXiPharmaTech Co., Ltd.Confidential Page 2 of 72.2.3: were added D (10 g, 1 mole) and E (20 mL) in turn2.3:2.3.1: A solution of D (10 g, 1 mole) in E (20 mL) was added dropwise into a solution(mixture or suspension) of A (10 mL, 1 mole) and B (2 g, mole) in C (50 mL) at 10o C (orwhile maintaining gentle reflux; while keeping inner temperature between 10o C –30o C) underN22.3.2: D (10 g, 1 mole) was added into a solution (mixture or suspension) of A(10 mL, 1mole) and B (2 g, mole) in C (50 mL) in portions2.3.3: D (10 g, 1 mole) and E (20 mL) were added into a solution (mixture or suspension) ofA (10 mL, 1 mole) andB (2 g, mole) inC (50 mL) in turn2.4:2.4.1: A solution of BuLi or BH3/THF (10 mL, 1 mole, 2.5 M in hexane) was cannulated intoaddition funnel or into a solution A in solvent B2.4.2: A solution of BuLi or BH3/THF (10 mL, 1 mole, 2.5 M in hexane) was added into asolution of A in solvent B via cannula, dropping funnel or syringe over a period of hrs Part 3: 反应3.1: 无溶剂反应A (1 g, 1 mol) andB (1 g, 1 mol) were dissolved in solvent C, evaporated to dryness andheated for x hours at x o C3.2: 催化量的反应A (20 mL, 142 mmol) and catalytic amount (a trace amount or two drops) ofB were addedinto a solution of C (4.549 g, 46.4 mmol) in D(120mL) at 0 o C3.3: 闷罐反应或封管反应A solution of A(x g, x mol) in methanol (x mL) saturated with NH3 (or other gas such as: CO,CO2, H2S) was stirred under 50 Psi at x o C for x hours in a 50 mL of sealed tube or autoclave.Sentence Template for Notebook and Report Writing WuXiPharmaTech Co., Ltd.Confidential Page 3 of 73.4: 有气体参与的反应3.4.1: A solution of A (x g, x mol) in methanol (x mL) saturated with HCl was stirred at x ℃.3.4.2: Ozone was bubbled into a solution of A (x g, x mol) in MeOH (x mL) at x o C for 15minutes. After excess O3 was purged by N2, Me2S (x mL) was added at x o C.3.4.3: Gas was bubbled into a solution of A (x g, x mol) and B (x g, x mol) in solventC (xmL) at x o C for x hours.3.5: 混合溶剂参与的反应3.5.1: To a solution of A (x g, x mol) in a mixture of solvent B (mL) and solvent C (x mL) (ora mixed solvent of B and C) was added D (x g, x mol) at x o C, the reaction mixture wasallowed to stir (reflux or heat) for x hrs.3.5.2: To a solution of A (x g, x mol) in 10: 1 aqueous acetone (x mL) was added B (x g, xmol) followed by addition of C (x g, x mol), the reaction mixture was allowed to stir (refluxor heat) for x hrs.3.6: 分水器分水的反应3.6.1: A (x g, x mol) and B (x g, x mol) in benzene or toluene (x mL) were refluxed for xhours with azeotropical removal of water.3.6.2; A mixture of A, B and TsOH.H2O (56.91 g, 0.3 mol) in toluene (400 mL) was heated toreflux and remove water by Dean-Stark trap.3.7: 氢化反应To a solution of A (x g, x mol) in EtOH (x mL) was added Pd-C or Ra-Ni orPd(OH)2/C (10%,x g) under N2. The suspension was degassed under vacuum and purged with H2 several times.3.7.1: The mixture was stirred under H2 (x psi) at x ℃for x hours. [氢化瓶或高压釜] 3.7.2: The mixture was stirred under H2 balloon at x ℃for x hours. [常压氢化如气球反应]3.7.3: A mixture of A (x g, x mol) and Ra-Ni (x g) in EtOH (x mL) was hydrogenated under50 Psi of hydrogen pressure for x hours at room temperature.Sentence Template for Notebook and Report Writing WuXiPharmaTech Co., Ltd. Confidential Page 4 of 7Part 4: 反应条件或过程描述4.1: The reaction mixture (solution or suspension) was stirred at 5o C for 2 hrs and then kept atroom temperature (or ambient temperature) for another 2 hrs (or overnight)4.2: The reaction mixture (solution or suspension) was refluxed (heated to reflux) or heated at60o C for 2 hrs (or overnight)4.3: The reaction mixture (solution or suspension) was allowed to reflux (or heat to reflux) for2 hrs (or overnight)4.4: The reaction mixture (solution or suspension) was allowed to warm to temperature during2 hrs and reflux (or heat to reflux) for 2 hrs (or overnight)Part 5: 反应监测5.1: Taking sample from the reaction mixture (solution or suspension) by dropping tube orsyringe. After workup, check the reaction via TLC, LC-MS or HPLC etc.. (预处理) 5.2: 反应状态或终点描述5.2.1: The reaction was complete (incomplete or messy) detected (determined or confirmed)by TLC (PE/EtOAc 4:1), LC-MS, HPLC or NMR5.2.2: TLC (PE:EtOAc=1:1) or HPLC (107757-088-1) showed or indicated that the reactionwas complete.5.2.3: TLC (PE:EtOAc=1:1) or HPLC (107757-088-1) showed the starting material wasconsumed completely.5.2.4: TLC (PE:EA=1:1) or HPLC (107757-088-1) showed the reaction didn’t work at all ormost of starting material was still remained.5.2.5: The starting material was consumed completely, but no desired compound was detectedor determined by MS (106657-078-1) or LC-MS (106657-078-1).5.2.6: Several spots were shown on TLC.5.2.7: Only a trace amount of desired compound was detected by MS (106657-078-1) orLC-MS (106657-078-1) or HPLC (106657-078-1) or TLC (PE:EtOAc=1:1).5.2.8: The desired compound could not be isolated, separated or purified by chromatographyor prep. HPLC due to poor yield or poor solubility.Sentence Template for Notebook and Report Writing WuXiPharmaTech Co., Ltd. Confidential Page 5 of 75.2.9:1H NMR (106675-010-2) or MS confirmed the obtained (or isolated) compound is notthe desired compound. The reaction was failed.Part 6: 反应淬灭6.1: An aqueous solution of A (10 mL) was added dropwise into the reaction mixture once thereaction mixture (solution or suspension) was allowed to warm (or cool) to -5o C or roomtemperature (ambient temperature).6.2: The hot (or cold) reaction mixture (solution or suspension) was poured into water (icewater) or poured onto ice.6.3: The reaction mixture (solution or suspension) was concentrated (distilled) under reducedpressure (in vacuum) or evaporated to remove MeOH (THF; DMF etc.) or excess SOCl2(reagent). Then the reaction residue (or the residual) was diluted with solvent and poured intowater (ice water) or poured onto ice.Part 7: 分液提取7.1: The residue was partitioned between ethyl acetate (100 mL) and 1N aq. HCl (50 mL).The separated organic layer was washed with water, dried over (Na2SO4 or MgSO4) andevaporated to dryness.7.2: After quenching the reaction, the reaction mixture was poured into separatory funnel andseparated.7.3: The aqueous layer (or phase) was extracted with organic solvent (40 mL) twice (or Xtimes). The combined organic layers were (or the organic layers were combined and) washedwith an aqueous solution of A (50 mL) or water and dried over Na2SO4 or MgSO4.7.4: The combined aqueous layers were extracted with solvent (40 mL) twice (or X times) toremove neutral impurities. The aqueous phase was acidified (or basified) with aqueous HCl(or NaHCO3) till PH = X and extracted with organic solvent.7.5: The combined organic layers were (or the organic layers were combined and) washedwith an aqueous solution of A (50 mL) or water and dried over Na2SO4 or MgSO4. Sentence Template for Notebook and Report Writing WuXiPharmaTech Co., Ltd. Confidential Page 6 of 7Part 8: 浓缩蒸发8.1: After filtration via filter paper or Celite pad, the organic layer (or extract) was concentrated under reduced pressure (or in vacuum) or evaporated to dryness to provide(afford; give or yield) an oil (or foam) (which solidified on standing) or a white solid.8.2: The organic layer (or extract) was filtered and concentrated under reduced pressure (or invacuum) or evaporated to dryness to provide (afford or give) A (10 g, 0.5 mole) an oil (orfoam) (which solidified on standing) or a white solid.8.3: After removal of solvent by evaporation or concentration, A (10 g, 0.5 mole) was obtained (or prepared) an oil (or foam) (which solidified on standing) or a white solid.8.4: The extract in CH2Cl2 was evaporated to dryness and then swapped with toluene toremove residual CH2Cl2.Part 9: 几种常见的后处理描述9.1: The reaction mixture or solution was concentrated to dryness. [适用于反应液不需要quench]9.2: After the reaction mixture was cooled to 0 ℃, the reaction mixture was quenched byaddition of x mL of H2O, followed by x mL of 15% aqueous NaOH. After being stirred atroom temperature for x hour, the solid was removed by filtration (or the mixture was filteredthroughCelite pad to remove by-product). The filtrate was concentrated to dryness to givecrude product. [LiAlH4 反应的经典后处理]9.3: The mixture was diluted with water (x mL), neutralized with solid K2CO3 until no CO2was evolved. [适用于酸性反应液的后处理]9.4: The suspension was filtered through a pad of Celite or silica gel and the pad or filter cakewas washed with EtOH (x mL×x). The combined filtrates were concentrated to dryness togive product (x g, x%) as. [适用氢化反应的后处理, 或者难于过滤的反应液的后处理, 但要注意的是这里需要的是滤液而不是固体才能添加助滤剂]9.5: The reaction mixture was poured into x mL of ice-water carefully and the organic layer orphase was separated. [产物在有机相里]9.6: The reaction mixture was poured into x mL of ice-water carefully and the aqueous phasewas washed with Et2O (x mL×x) [产品在水相] and acidified with 1N HCl to pH=3. TheSentence Template for Notebook and Report Writing WuXiPharmaTech Co., Ltd. Confidential Page 7 of 7resulting precipitate was collected by filtration or the resulting solution was extracted with EA(x mL×x).9.7: The reaction mixture was filtered and the filter cake was washed with x mL of solvent,dried in vacuum to give or afford product. [这里需要的是固体而不是滤液]9.8: The reaction mixture was quenched with x mL of saturated aqueous NH4Cl. The resultingsolution was extracted with EA (x mL×x). [适用于丁基锂等活泼金属有机物的后处理]9.10: The residue was triturated with ether and filtered to afford a white solid. (磨碎) 9.11: The crude product was purified by prep. HPLC to give A as a colorless thick oil whichwas solidified on standing. (静止固化)9.12: After prep. HPLC purification, the eluent was concentrated or evaporated to removeorganic solvents. The residual aqueous solution was lyophilized to give a white solid. (冷冻干燥)9.13: After concentration, the crude product was used directly for the next step withoutpurification.Part 10: 产品的纯化10.1: The crude product was purified by silica gel chromatography eluted with PE: EtOAc=10:1 to give product (x g, x%) as yellow solid.10.2: The crude product was purified by re-crystallization (or re-crystallized) from x solvent(x mL).10.3: The crude product was distilled in vacuum (x o C, x pressure) to afford pure product (x g,x%) as colorless liquid.10.4: The crude product was pre-purified by column chromatography followed by prep.HPLC purification or re-crystallization to afford pure product.__。

实验报告英语作文模板英文回答：Introduction。

The purpose of this experiment was to investigate the effect of temperature on the rate of a chemical reaction. The reaction studied was the decomposition of hydrogen peroxide (H2O2) into water (H2O) and oxygen (O2). The hypothesis was that the rate of the reaction would increase as the temperature increased.Methods。

The experiment was conducted by measuring the volume of oxygen produced over time at different temperatures. The following materials were used:100 mL of 3% hydrogen peroxide solution。

10 mL of catalase enzyme solution。

250 mL graduated cylinder。

Thermometer。

Stopwatch。

The procedure was as follows:1. The hydrogen peroxide solution was poured into the graduated cylinder.2. The catalase enzyme solution was added to the hydrogen peroxide solution.3. The stopwatch was started.4. The volume of oxygen produced was recorded every minute for 10 minutes.5. The temperature of the solution was recorded everyminute for 10 minutes.Results。

No. Date: Student number:Name:Title:Freefall【Aim】请参考讲义，内容用英文手写。

拍照后截图插入此处，要求拍照内容清晰，窗口大小可自行调整。

【Theory】请参考讲义，内容用英文手写。

拍照后截图插入此处，要求拍照内容清晰，窗口大小可自行调整。

一、作图要求：1、描绘出自由落体运动的原理图；2、原理图需要手工描绘。

二、内容要求：1、重力加速度的含义；2、重力加速度的影响因素；3、自由落体运动公式。

1【Table】【Results】数据分析及结果撰写要求（英文撰写）：1、利用作图求得的斜率求出重力加速度大小，查找自己所在地的纬度值，按照讲义中的公式（4）计算自己所在地的重力加速度大小，并与测量值进行比较，计算百分偏差大小，百分偏差在±5.0%以内的都是合理的。

2、百分偏差计算例子：测量值：g测量=9.56 m/s2；福州地区重力加速度g理论=9.78 m/s2 ；g的相对误差值为：%3.2%10078.978.956.9%100--=⨯-=⨯=理论理论测量gggB【Conclusions】请对本实验测量做个总结，内容用英文手写。

拍照后截图插入此处，要求拍照内容清晰，窗口大小可自行调整。

总结示例：在本实验中，我们利用手机软件Phyphox的声学秒表功能来测量小重物自由落体的时间。

测量时通过多次重复测量的方法来减小偶然误差，利用作图的方法求出高度与时间平方的比值大小，最终计算得到**地区（例如：福州地区）的重力加速度大小。

实验测量值与当地的重力加速度的理论值还是比较接近的。

Score: T A: Date :附录：1、演示视频文件：用手机Phyphox做自由落体实验.mp4，文件已经上传至群文件。

2、手机Phyphox APP：3、实验示例：自由落体测重力加速度实验仪器：米尺，空的纸盒子，小重物（如小球，小核桃等），手机（需要安装Phyphox）实验步骤：（1）从手机应用或网页下载Phyphox；（2）将纸盒放于桌上，用米尺标定离纸盒正上方0.500 m高度，手拿小重物悬在标定高度上，将手机放在空的纸盒附近，打开Phyphox中的声学秒表，如下图所示。

2023新教科版三年级上册英语学生实验
报告单范本
实验信息
- 实验名称：英语单词拼写实验
- 实验日期：2023年3月15日
- 实验地点：三年级三班
实验目的
本次实验的目的是通过进行英语单词拼写练，帮助学生巩固和提高他们的英语单词拼写能力，并培养他们的语言研究兴趣。

实验材料
- 实验记录本
- 班级名单
- 英语课本
实验步骤
1. 给每个学生分发实验记录本和铅笔。

2. 将英语课本中的10个单词写在黑板上，并读出每个单词的音标和中文翻译。

3. 学生们读出每个单词，并尝试用英语拼写在实验记录本上。

4. 学生们相互检查对方的拼写，并提供建议和讨论。

5. 教师对每个学生的拼写进行评估和反馈。

实验结果
学生们在本次实验中表现出色，大部分学生都能正确拼写出给定的单词，并通过相互检查和讨论进一步提高了拼写能力。

实验总结
通过这个实验，学生们不仅巩固了对英语单词的拼写能力，还培养了合作与交流的能力。

学生们在实验过程中表现出积极的研究态度，展现出对英语研究的兴趣和热情。

实验改进
为了进一步提升实验效果，可以考虑增加实验的难度，增加更多的单词和句子拼写练，并引入一些游戏元素，激发学生们的研究兴趣。

有机化学英文实验记录Alright, here's a sample of an organic chemistry experiment record in an informal, conversational English style:Just started the experiment. Got all the glassware set up and the reagents ready. Feeling a bit nervous, but excited too. This could be interesting.Man, the smell of that solvent is intense! It's like a punch in the nose. Gotta be careful not to breathe it in too much.Hey, the reaction is kicking off! I can see the colors changing already. It's so cool to watch the magic happen.Uh-oh, looks like I overheated the mixture a bit. Hope it didn't mess up the whole experiment. Gotta be more careful next time.Alright, time to separate the products. Thisdistillation setup is a bit tricky, but I think I've got it. Just gotta keep an eye on the temperature.Wow, the yield is pretty good! I didn't expect to get this much product. Feels like all that hard work paid off.Now for the purification step. This recrystallization process is tedious, but it's gotta be done right. Don'twant any impurities in my final sample.Okay, so I think I've got it now. The product iscrystal clear and looks great. Just gotta do some final testing to confirm everything is as expected.Well, that's it for today. The experiment is done andI'm pretty happy with the results. Just gotta write up the report now and submit it. Hopefully, my professor will be impressed!。

实验记录英文作文开头Experiment Record。

Experiment 1。

So, I was in the lab yesterday, trying to mix these two chemicals together, and BAM! The whole thing just exploded in my face. It was crazy, but also kind of exciting.Experiment 2。

Today, I decided to test the effects of different temperatures on plant growth. I set up three different environments – hot, cold, and room temperature – and I'm curious to see how they'll all turn out.Experiment 3。

I've been working on this new project for a while now, and I think I finally made a breakthrough. I can't wait tosee the results of this experiment and see if my hypothesis was correct.Experiment 4。

I tried to replicate an experiment that I read about ina scientific journal, but it didn't go as planned. I'm not sure what went wrong, but I'll have to go back and figureit out.Experiment 5。