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biecc

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Last summer, my family and I went to Hawaii for a holiday! We flew across the Pacific to the tiny island from B After we booked into a hotel, we Our fun started the next day and lasted for two long During our time there, we ate delicious exotic food and drank numerous fruit The Hawaiians are very proud of their unique food, often 'spiced up' with slices of juicy pineapple and strings of delicious There were also fantastic beaches right accoss the tiny Last summer, my family and I went to Hawaii for a holiday! We flew across the Pacific to the tiny island from B After we booked into a hotel, we Our fun started the next day and lasted for two long During our time there, we ate delicious exotic food and drank numerous fruit The Hawaiians are very proud of their unique food, often 'spiced up' with slices of juicy pineapple and strings of delicious There were also fantastic beaches right accoss the tiny The water was sparkling blue and the sand dunes radiated with an inviting warmth of The place was wonderful and the locals were really nice; I really enjoyed my The water was sparkling blue and the sand dunes radiated with an inviting warmth of The place was wonderful and the locals were really nice; I really enjoyed my

细胞生物学英语论文范文大全

241 评论(14)

renyan198251

去创新医学网一定能找到的,上面24科室的论文都有,而且全部免费,自己去找找吧!
194 评论(11)

eagle14835

一、以“如果我掌握了克隆技术”为题,写一篇作文 答:这是一篇完全开方式的作文,英语作文目前还没有这种形式。下面是小学生的作文,供参考: 假如我掌握了克隆技术,我想为人类造福,为有需要的病人克隆出他们所需的人体器官。 走进医院,病房里一位位病人痛苦地呻吟着,我挨个为他们克隆器官。第一个病人需要克隆的是心脏。我用机器查看他的心脏的基因和形状,然后在电脑中绘画出一个与他心脏一模一样的,我不由地捏了一把汗。因为心脏是所有人最关键的器官,可容不得马虎。但想想我以前做过那么多的克隆心脏手术,便对自己信心十足。   半小时后,克隆心脏完成了,接下来任务更加艰巨了,我把氧气输入体内。然后通过先进的设备将他原来的心脏与我克隆好的心脏相交换,就成功了。我松了一口气。那患者的心脏还有用,只是心脏功能退化了。所以我又通过设备将心脏储藏好,等到下一个患者需要心脏,就可以派上用场了。   真希望我能掌握克隆技术,那时我一定要实现这个伟大的理想。      二、假如你是李华,你的朋友Peter来信咨询如何学好英语,根据以下要点回信: 参加中文学习班 看中文书刊、电视 学唱中文歌曲 交中国朋友Dear Peter, I’m glad to receive your letter asking for my advice on how to learn Chinese Here are a few First, it is important to take a Chinese course, as you’ll be able to learn from the teacher and practice with your fellow Then, it also helps to watch TV and read books, newspapers and magazines in Chinese whenever Besides, it should be a good idea to learn and sing Chinese songs, because by doing so you’ll learn and remember Chinese words more You can also make more Chinese They will tell you a lot about China and help you learn C Try and write me in Chinese next Best wishesLi Hua三、假如你是李华,你的新西兰笔友Nick将于8月来四川旅游,询问景点,依要点回信: 旅游资源:许多世界著名风景名胜,如九寨沟(海子,清澈见底,色彩斑斓) 都江堰水利工程(1000多年历史仍在发挥作用) 相关信息:气候宜人,交通方便Dear Nick,First of all, allow me to extend to you my warmest Sichuan is a charming province with many places of interest, including Lyla and the Dujiangyan Irrigation System, which are among the sights of the Since they are really worthwhile to pay a visit to, I strongly recommend that you should not miss What is more, you know, the virtue of living in Sichuan is that the weather is so It will be neither too hot nor too You could even feel the sound of I believe that never in your life will be so close to experience the beauty of Besides, the very convenient transportation will bring you an extremely new You have to appreciate the progress of a city while admiring the palmy In conclusion, you will have a good time here!Sincerely yours,Lihua 上面两篇是参考范文,仅供参考。别指望会有人给你原创写三篇作文。给100元RMB或许有人会写。
206 评论(14)

lyp2008sdu

以“如果我掌握了克隆技术”为题,写一篇作文If I have mastered cloning technology, I think for the benefit of mankind, there is a need for the patient to clone their required human Entering the hospital ward, a patient groaned in pain, I went into their clone The first patient to clone a I use the machine to check his heart gene and shape, and then in the computer drawing of a heart with him as like as two peas, I was not to be Because the heart is all the most critical organs, can not tolerate But I think before doing so many cloned cardiac operation, he is confident to Half an hour later, cloned cardiac completed, then the task is more formidable, I put the oxygen input in And then through the advanced equipment to his heart and I clone good heart phase exchange, will I am a little It is also useful in cardiac patients, only the degeneration of cardiac So I went through the device will heart storage is good, wait until the next patients in need of a heart, can come in I wish I could master the cloning technology, then I must realize this great 假如你是李华,你的朋友Peter来信咨询如何学好英语,根据以下要点回信: 参加中文学习班 看中文书刊、电视 学唱中文歌曲 交中国朋友
84 评论(9)

rongshui

仅供参考:  提高学习生物兴趣的几点做法  当前在生物学科的教学中,由于在考试的影响和指挥下,教师的教学过程过多的重视课堂教学和知识的传授,忽略兴趣的培养和提高。教师不得不去为传授知识而教学。虽然新课标和教材都非常重视学生能力的培养和学习兴趣的提高,往往事与愿违,学生也不是靠兴趣学习,而是为了升学和成绩的提高,没有达到在兴趣和爱好的基础上自主的学习和探究,为了使学生改变被动地,强压地学习变为主动地,自觉地学习,我是从以下几个方面入手的。  一、营造和谐课堂和平等,民主的学习气氛。  当前的课堂教学是以学生为主体,教师则是以一个合作者或组织者的身份参与教学活动,这就要求教师要运用“亲其师,信其道。”的心理效应,把爱心带进课堂,把微笑送给每一位学生,把激发兴趣鼓励学生学习的语言带进课堂,营造一种平等,宽容,民主,愉悦的课堂气氛,使学生在兴奋状态下学习,调整好自己的心态,调动学生的思维活动引发学生的发散思维,使课堂气分活跃,使每一位学生都能主动的学习,自觉的参与。兴趣是最好的老师,学生的学习兴趣要靠教师的调动,兴趣调动起来了,主动性提高了,往往能取得事半功倍的效果。同时教师要有一颗火热,诚挚的童心,要和学生打成一片,关心体贴学生,要把爱无私的奉献给他们,和他们交朋友,用友谊去感化他们。还要有一双公正无私的眼睛,和心口如一的语言。用圣洁的思想去陶冶他们,使学生从心底里感激,从道业上信服,去赢得较高的教学效果。  二、因的制宜激发兴趣,鼓励探究精神。  兴趣是学习的原动力,兴趣是指一个人力求认识某种事物或接近某种事物的心理倾向,它推动人们去主动观察。在平时教学中,我们应特别注重,因时,因地向学生提出发人深省的有趣的问题,激发学生的好奇心和求知欲,也是对学习过的内容的一种应用或复习。使学生再玩中学,在学中玩,在教学过程中把教学内容设计成可玩,或娱乐性的问题或活动。例如:在无性生殖的应用的一节中,我们就可以把学生根据自己的爱好分成几组,结合学校的环境条件,一部分到学校的绿化带内对木本植物进行嫁接,可以选用枝或芽,并计算成活率。一部分去探究扦插,用自己喜欢的花卉进行,也计算成活率。并记录自己的实验过程。根据中学生的特点可采用组与组评比,组内人与人评比。评比的条件由学生自己制定,教师指导,评出一,二 ,三等奖。培养了学生的实践精神,竞争能力和科学的探究过程。又如在讲述家蚕一节我根据学校的特点,让学生分组捕获蝴蝶或各种蛾类进行观察,分组时 可多可少,也可一人为一组或多人为一组,记录观察到的特征和现象,及捕获的过程,尤其在捕蝴蝶的活动中,学生的兴趣非常浓对所捕获的标本观察的非常细致,并提出各种各样的问题,兴趣达到了高峰,在捕获的过程中对观察细致的同学给予表扬。来调动学生的积极性,提高学习兴趣。因此,在生物教学过程中,要抓住时机,利用日常生活或活动中所见到的生物现象随时随地地提出问题,引导学生思考,如,在校园的锄草活动中,可提出与植物有关的一些问题,什么是平行脉,网状脉,,直根系,须根系,植物根,茎,叶的特点等等。边活动,边观察,边讲述,边提出问题。这样,会收到 在课堂无法收到的效果。  三、重视实验,要严,细要求。  生物是一门以实验为基础的学科,科学理论的产生主要来自于实验,观察自然现象或事物,探究自然规律,或验证自然规律,都离不开科学实验,通过实验有助于学生加深对基础知识的理解,有助于发展学生的思维能力,对培养学生的观察,分析,综合的能力,提高学生的科学素质,具有十分重要的意义。  在实验中要尊重事实,依靠证据,要有不厌其烦的精神,严谨的学风,实事求是,服从真理的科学态度,务求正确,准确,科学。这些优秀的品质都需要我们实验教学过程中帮助学生养成,强化。例如,在制作洋葱鳞片叶表皮细胞临时装片的事业中,要求学生要严格按照步骤仔细的去完成,尤其是在撕取洋葱鳞片叶内表皮时,提示学生要注意撕取的大小,薄厚,无论反复多少次,直到合格为止,在制片时要求学生缓缓地放下盖玻片,做到无气泡。用显微镜观察临时装片时,要求学生仔细观察所看到的细胞的形态,大小能区分开每一个细胞,培养严谨的学风,和科学的态度。  四、让学生学会学习,学会合作。  授之以鱼,不如授之以渔,因此,在教学过程中,传授给学生学习方法和获取知识的手段比教给学生知识还要重要,掌握学习方法可走上可持续发展的道路,当今社会知识更新和知识爆炸,因此,获取知识的方法更重要。在课堂教学中,要教会学生合作学习,合作探究,研究讨论,养成与他人合作,尊重他人的意见,这些是提高科学素质和研究的重要方面。为此教学中要调动学生学习积极性,采取多种形式,创造研究讨论氛围,倡导合作学习,在一定范围内讨论,辩论,培养合作精神。
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