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【句子】
 Essentially, a theory is an abstract, symbolic representation of what is conceived to be reality. 理论在本质上是对认识了的现实的一种抽象和符号化的表达。  【解析】 1.essentially adv. 本质上，本来 【近义词】 really adv.实在,真正地 mainly adv.主要地,不部分地 virtually adv.实际上,几乎 practically adv.实际上,几乎 fundamentally adv.从根本上,基本地 basically adv. 基本上,主要地 in essence 本质上,根本上 in effect adj. 实际上,正在实行 to all intents and purposes 几乎在一切方面,实际上 principally adv.主要地 ①She's essentially kind. 她本质上是和善的。 ②He is essentially a very nice person. 他基本上是一个和蔼可亲的人。 2.abstract 1)作形容词时理解为抽象的，理论的，抽象派的 I can not understand the so abstract concept. 我无法理解如此抽象的观念。 2)作名词时理解为摘要，抽象派艺术作品 Harper made an abstract of Prof. Hunter's lecture. 哈珀将亨特教授的讲座做了摘要。 3)作动词时理解为把…抽象出，提取，抽取，转移(注意力等)，做…的摘要 In the end he abstracted the most important points from his long speech. 最后他从自己的长篇演说中提取出最重要的几点。 3.symbolic adj. 象征的，符号的n. 代号 ①The snake is symbolic of evil. 蛇象征邪恶。 ②The power of the monarchy in britain today is more symbolical than real. 今日英国君主的权力多为象征性的，无甚实际意义。 4.representation n. 陈述，表现，表示法 ①His representation influenced them to investigate. 他的陈述促使他们去调查。 ②This painting is a representation of a storm at sea. 这幅画表现的是海上风暴。 【句子】
Long before children are able to speak or understand a language, they communicate through facial expressions and by making noises. 儿童在能说或能听懂语言之前，很久就会通过面部表情和靠发出噪声来与人交流了。 【解析】 1.before long 和long before 的区别: before long 不久以后，很快;long before 很久以前 ①They came back before long. 他们很快就回来了。 ②I knew Tom long before I knew you. 我在认识你之前很久就认识了汤姆。 2.be able to与can的区别： 1)be able to 强调通过努力而获得的能力，而can则强调自身已具有的能力。 ①She can sing the song in English. 她能用英语唱这首歌。 ②He will be able to sing this song in English in a few minutes, too. 几小时之后，他也能用英语唱这首歌。 2)be able to 强调一种结果，而can只强调一种可能。 ①Luckily, he was able to escape from the big fire in the end. 幸运的是，他终于逃出了大火。 ②If he got here a few hours earlier, I could save him. 要是他早几小时来，我还能救他。 3)be able to 可以有各种时态；而can只有一般现在和一般过去两种时态。 ①He is / was / will be able to help you. 他能帮你的忙。 ②I could help you last night, but you didn’t come. 昨天晚上我能帮你，而你又没来。 4) can可用于表示可能性，推测，允许等情况，而be able to通常不这样用。 ①You are able to use my pen. (误) ②You can use my pen. (正) 5)can有被动语态，主语为人或物皆可，而be able to只接不定式的主动形式，不接表示被动的不定式，也不可用无生命的名词作主语。 ①The work is able to be done by him. （误） ②He is able to do the work.（正） 注意：指过去某时或某个时刻设法做成某事，不用could,而用was\were able to。 I talked with her for a long time,and eventually I was able to make her believe me. 我谈了很久，最终还是使她相信了我的话。 3.facial n.面部护理；美容 a.面部的 ①She is having a facial massage. 她正做脸部按摩。 ②I've made an appointment for a facial next week. 我已经预约了下周去美容。 4.expression n. 表情，表示，表达，词句，措辞，表现 【近义词】 face n.表面,脸;v.面对,面向 look v.看,寻找;n.看,样子 manifestation n.表现,示威运动 saying n. 谚语,俗话;动词 communication n.交流,通讯 appearance n.出现,露面 countenance n.面容,面部表情;v.赞.. phrase n.短语,习语;vt.措词... idiom n.成语,惯用语 term n.学期,术语;vt.把 ... ①He had a passive expression on his face. 他脸上有一种漠然的表情。 ②The scenery was beautiful beyond expression. 那风景美丽得无法形容。 【句子】
Thanks to modern irrigation, crops now grow abundantly in areas where once nothing but cacti and sagebrush could live. 受当代灌溉(技术设施)之赐，农作物在原来只有仙人掌和荞属科植物才能生存的地方旺盛的生长。 【解析】 1.thanks to与 thanks for的用法异同 1)thanks to为习语介词，thanks不可以改为thank you，to后也不接动词原形，这个短语表示原因，意为“由于”、“多亏”，to表示感谢的对象。 Thanks to the English language，we can learn a lotfrom other countries． 由于英语这门语言，我们能从其它国家学到很多东西。 2)thanks for是客套用语，thanks相当于 thank you ，意为“因……而感谢”，for强调为何而感谢，其后可接名词或v-ing。 Thanks for inviting us to your birthday party．谢谢你邀请我们参加你的生日聚会。 2.irrigation n. 灌溉，[医]冲洗 In the end he abstracted the most important points from his long speech. 最后他从自己的长篇演说中提取出最重要的几点。 3.abundantly adv.大量地，丰富地 ①A meal that is well prepared and abundantly enjoyed. 盛宴经充分准备，可尽情享乐的宴席 ②See it , know it, live it, and allow the joy to flow more abundantly than ever before. 你要看到它，熟知它，兑现它，并且让这个新开端流露出以往更充盈的快乐！ 4.cacti n. 仙人掌 复 数：cactus ①The cactus is full of prickles. 仙人掌长满了毛刺。 ②Cacti live in dry regions. 仙人掌生长在干旱地区。 5.sagebrush n. 山艾树(美国西北荒漠产的一种灰绿色灌木) |
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