英语应该要多背作文吗【一】
可以包括两部分：对模型基本假设的介绍以及基本模型以及相应命题。因为每一个观点的得出都离不开具体的环境所以需要了解最重要的几个假设。为了加深理解了解模型的基本框架也是很重要的。
样本1
本文首先是“定义”了企业再“证明”企业的边界。这一定义包括三个核心假设：不区分没有资产的雇员和外部承包商(outside contractor;一体化不改变双方的信息结构只是转移而非消除了机会主义行为[1];再谈判无成本从而避免无效的“科斯定理”。
[1] 作者认为tce将一体化等同于完全契约的功能但是后来威廉姆森(尤其是1991深化了tce对官僚成本的分析从而从另一个角度刻画了“所有权的成本”。
此主题相关图片如下：
英语应该要多背作文吗【二】
nowadays, we can see some boys and girls who live in a small world of their own. they bury themselves among books and are proud of themselves. they think that it will make them lose their face if they do housework for they often think themselves very noble.
these young people are wrong. in my opinion every student should have a knowledge of housework. after all, they will have a family of their own, and they should do their part in keeping a good home. boys should also learn to do housework, for what will they do if they remain single? though not all boys remain single,yet they will be very helpful in the family if they know some housework. anyhow they will not lose anything, but, on the contrary, they will gain something useful.
for what i said above, we can find some eamples of our fellow-students studying abroad. all young men do housework as girls do. someone would argue that we can employ servants. this is true.however, what shall we do if the servant leaves us and all things are left to ourselves? we just cannot leave our clothes as they are and let worms and ants eat them up. and what can we do it we go and study in a foreign country where servants are out our means to employ? we must work for ourselves. why not start to learn to do housework now or else it will be too late? everyone should learn to do housework. what do you think about my idea, boys and girls?
英语应该要多背作文吗【三】
因为秋分节气已经真正进入到秋季，作为昼夜时间相等的节气，人们在养生中也应本着阴阳平衡的规律，使机体保持“阴平阳秘”的原则，按照《素问·至真要大论》所说：“谨察阴阳之所在，以平为期”，阴阳所在不可出现偏颇。
精神调养最主要的是培养乐观情绪精神调养最主要的是培养乐观情绪，保持神志安宁，避肃之气，收敛神气，适应秋天平容之气。体质调养可选择我国古代民间九九重阳(阴历重阳节登高观景之习俗，登高远眺，可使人心旷神怡，所有的忧郁、惆怅等不良情绪顿然消散，这是养生中的养收之一法，也是调节精神的一方良剂。调节饮食应以清润、温润为主。事实证明，多食芝麻、核桃、糯米、蜂蜜、乳品、雪梨、甘蔗等食物，可以起到滋阴润肺养的作用。由于气候干燥，故应尽量少吃辛辣之品，遵守“少辛增酸”的原则，如葱、蒜、姜、茴香、辣椒等要少吃，而柑橘、山楂、苹果、梨、葡萄等新鲜瓜果蔬菜可多吃。要多喝开水、淡茶、豆浆、乳制品、果汁饮料等，这样可起到益胃、生津的功效。老年胃弱的人，可采用晨起食粥法，如选食百合莲子粥、银耳冰糖糯米粥、杏仁川贝糯米粥、黑芝麻粥等。也可烹制杏仁猪肺汤、罗汉果炖猪肺、贝梨(贝母和雪梨炖猪肺、莲子百合炖猪肉、沙参炖肉等保健药膳服食。
调节饮食应以清润、温润为主从秋分节气开始，人们的秋燥症状一般属于凉燥。秋分以前有暑热的余气，故多见于温燥;中秋之后，秋风渐紧，寒凉渐重，所以多出现凉燥。当然，秋燥温与凉的变化，还与人的体质和机体反应有关。温燥咳嗽是燥而偏热的类型。常见症状有干咳无痰，或者有少量粘痰，不易咯出，甚至可见痰中带，兼有咽喉肿痛，皮肤和口鼻干燥，口渴心烦，舌边尖红，苔薄黄而干。初发病时，还可有发热和轻微怕冷的感觉。凉燥咳嗽是燥而偏寒的类型，病发时怕冷，发热很轻，头痛鼻塞，咽喉发痒或干痛，咳嗽，咯痰不爽，口干唇燥，舌苔薄白而干。这类病症虽不是大病，但如不及时治疗，病邪便会深入，病症会加重，少数人还会发生其它病变。出现高热、抽风、出等严重现象，所以应及早治疗和预防。人患此症，是由于体弱，不胜凉劲肃之秋气的侵侮所致。要防止秋燥症，就得增强体力，提高抗病的能力。适应气候变化，坚持身体锻炼。秋季身体锻炼，重在益肺润燥，如练吐纳功，叩齿咽津润燥功。
