1 . As a result of what is now know in physics and chemistry, scientists have been able to make important discoveries in biology and medicine
2 . Essentially, a theory is an abstract, symbolic representation of what is conceived to be reality
3 . 科学家不知道恐龙为何绝种了，但是一些理论推断是地理，气候和海平面的变化造成的。
4 . Goodboy好男孩。
5 . His teaching began at the Massachusetts Institute of Technology, but William Rainey Harper lured him to the new university of Chicago, where he remained officially for exactly a generation and where his students in advanced composition found him terrifyingly frigid in the classroom but sympathetic and understanding in their personal conferences
6 . IhavePE我有体育课。/Igofishing我去钓鱼。
7 . 使用多种多样的符号可以在一张地图里放进大量的信息。
8 . 有的同学在写句子时，一遇见生词或不熟悉的表达，就以为是“山穷水尽”了。其实，此时我们可以设法绕开难点，在保持原意的基础上，用不同的表达方式写出来。如：
9 . 即把疑问句强调句倒装句等还原成基本结构。这是避免写错句子的一种有效的办法。如：
10 . 这是进行英语(优习英语网写作时最常用的方法。同学们在掌握一定的词汇和短语之后，结合一定的语法知识，按照句子的结构特点，直接用英语代人相应的句式即可。如：
1 . 由于苯酚对人体带有刺激性作用，它基本上已不再被当作常用的防腐剂了。
2 . Stone does decay, and so tools of long ago have remained when even the bones of the man who made them have disappeared without trace
3 . 指根据要表示的汉语意思，通过进行语法分析和句式判断，然后写出准确地道的英语句子。如：
4 . 尽管模仿鸟学很多种鸟的鸣叫声惟妙惟肖，但人类还是能够依其声音上的线索很快识别它们。
5 . 珍珠的色泽受到作为其母体牡蛎种类及牡蛎生活水域的深度，温度和含盐度的制约。
6 . 随着现代办公室的日益自动化，设计师们正试图利用较为温暖而不太严肃的内部装饰来使其具有亲切感。
7 . Iwatchcartoons我看动画片。/Iplaygames我玩游戏。
8 . 对于课后及时复习学习方法大家应该熟悉吧，下面我们来好好学习吧。
9 . 大约从公元前七千年开始，在四千年当中，北半球的温度比现在高。
10 . Probably no man had more effect on the daily lives of most people in the Untied States than did Henry Ford a pioneer in automobile production
1 . 一个地方的人口越多，其对水，交通和垃圾处理的需求就会越大。
2 . 人类学是一门科学，因为人类学家采用一整套强有力的方法和技术来记录观测结果，而这样记录下来的观测结果是供他人核查的。
3 . That xenon could not FORM chemical compounds was once believed by scientists
4 . It has been found that certain bats emit squeaks and by receiving the echoes, they can locate and steer clear of obstacles------or locate flying insects on which they feed This echo-location in bats is often compared with radar, the principle of which is similar
5 . eg He is not too well these days
6 . By the middle of the twentieth century, painters and sculptors in the United States had begun to exert a great worldwide influence over art
7 . （）too用作副词，意为“非常很”，在句中修饰形容词副词，相当于very，但语气比very强。
8 . 每次我听说体育运动能够在国家间建立起友好感情，说世界各地的普通人只要能在足球场或板球场上相遇就会没有兴趣在战场上相遇的话，我都倍感诧异。
9 . 人造花卉即可用于科学目的，也可用于装饰目的，它们可以用各种各样的材料制成，臂如蜡和玻璃；其制作如此精巧，几乎可以以假乱真。
10 . The sloth pays such little attention to its personal hygiene that green algae grow on its coarse hair and communities of a parasitic moth live in the depths of its coat producing caterpillars which graze on its mouldy hair Its muscles are such that it is quits incapable of moving at a speed of over a kilometer an hour even over the shortest distances and the swiftest movement it can make is a sweep of its hooked arm
1 . 就是在写英语句子时，把相应汉语句子里的某些词短语或重复的成分删掉或省略。如：
2 . 今天小编为大家带来的学习方法是对too的用法，同学们对too的用法理解多少呢？
3 . Of the millions who saw Haley’s comet in , how many people will live long enough to see it return in the twenty-first century
4 . The elimination of inflation would ensure that the amount of money used in repaying a loan would have the same value as the amount of money borrowed
5 . 美国西部的不毛之地正成为玩耍的地方，对越来越多拥有摩托车或越野单车类车辆的，喜欢放纵于爬坡比赛或开辟新的沙漠通道的寻欢作乐者具有不断增长的吸引力。
6 . The mechanism by which brain cells store memories is not clearly understood
7 . 注：汉语表达中的“价”和“物”在英语中均无需译出。
8 . ◎狼是高度群体化的动物，它们的成功依赖于合作。
9 . ①先找出句子的谓语动词，并考虑动词的性质，这是能否正确分析句子的关键。
10 . ◎直到我遇到你以后，我才真正体会到幸福。
1 . it was because he loved my money that he married me
2 . 从上分为比赛猜结果角色表演听音反应模拟律动变声调游戏等。
3 . 从分为单词教学游戏句子教学游戏音标教学游戏诗歌教学游戏和巩固复习游戏；
4 . ◎告诉我这事的人不肯告诉我他的名字。
5 . 初中英语学习之课内要敢说
6 . 还原为正常语序：light travels so fast that we can hardly imagine its speed
7 . ◎他发现赚点外快很容易。
8 . 在伊利诺伊州Angonne市的一个废弃煤矿的三年研究取得了成果，科学家们相信这些成果可以帮助改造把美国产煤区弄得伤痕累累的数千个旧煤场。
9 . Since the consumer considers the best fruit to be that which is the most attractive, the grower must provide products that satisfy the discerning eye
10 . It’sorangeIlikeit橘黄色，我喜欢它。
1 . 确实，他们在探险中遇到了极具威胁性的困难和危险，而他们的装备会让一个现代登山者想一想都会浑身颤栗。不过他们并不是刻意去追求刺激的。
2 . Poodles were once used as retrievers in duck hunting, but the American Kennel Club does not consider them sporting dogs because they are now primarily kept as pets
3 . The history of painting is a fascinating chain of events that probably began with the very first pictures ever made
4 . 在英语课堂上，当孩子们遨游在光怪陆离的童话故事中，他们学习的英语积极性被充分地调动了起来，当他们和一个个栩栩如生的童话人物交上好朋友的时候，他们的英语也会取得长足的进步。
5 . he found it easy to earn extra money
6 . 简明，直接，有力的写作难于花哨，含混而意义模糊的表达。
7 . 在大量的实验中，某一事件发生的几率等于它不发生的几率。
8 . 教师利用学生过去学过的知识，设计和英语为母语的学生文化相近便于他们理解的教学活动。
9 . 我看过这本书，也看过这部电影。
10 . 由于空间不足，艺术博物馆在考虑购买和接受捐赠的艺术品是越来越慎重，有些情况下放弃其进一步改善收藏的机会。
1 . 在介绍新词汇引进新知识的时候，教师尽可能结合周围实际环境，在一个富有实际意义的环境之中，像掌握母语（中文）一样，掌握英语。
2 . Starting around BC, and for the next four thousand years, much of the Northern Hemisphere experienced temperatures warmer than at present
3 . The knee is the joints where the thigh bone meets the large bone of the lower leg
4 . Snow aids farmers by keeping heart in the lower ground levels, thereby saving the seeds from freezing
5 . 十八世纪时，"小乌龟"是迈阿密部落的酋长，该部落的地盘就是今天的印第安纳州和俄亥俄州。
6 . 现做具体说明如下：
7 . 根据默默无闻的小说制作优秀影片在美国由来已久，已经成为传统。
8 . It is true that during their explorations they often faced difficulties and dangers of the most perilous nature, equipped in a manner which would make a modern climber shudder at the thought, but they did not go out of their way to court such excitement
9 . eg He speaks French and he also writes it
10 . Because of its irritating effect on humans, the use of phenol as a general antiseptic has been largely discontinued
1 . 以韵律式的“说，唱”形式，配合科学编排的韵律动作，全方位地调动视觉听觉言语能力和肢体动作，让孩子真正“懂得”英语，真正“脱口而出”纯正的英语，真正“学”会英语。
2 . Using many symbols makes it possible to put a large amount of inFORMation on a single map
3 . The use of well-chosen nonsense words makes possible the testing of many basic hypotheses in the field of language learning
4 . Everglades是美国境内最为荒凉和人迹罕至的地区之一，此处有大量的野生动植物而且大多受(法律保护。
5 . 主要目的在于丰富和优质的农艺学利用了其它科学的知识。
6 . 对于英语的学习要坚持心态调整，做到循序渐进。
7 . I find young people exciting They have an air of freedom, and they have not a dreary commitment to mean ambitions or love comfort They are not anxious social climbers, and they have no devotion to material things
8 . too用作副词，意为“也并且还”，用于肯定句结构中，常位于句末，也可置于句首或紧跟在主语之后，但都常用逗号隔开。
9 . 它能够一下子就抓住学生的注意力，吸引学生参加活动，让他们在轻松快乐的学习环境中，犹如身临其境般的体验英语。
10 . 注：分词短语作状语时，其逻辑主语应与句子主语一致，由于the matter与sec之间为被动关系，故see要用过去分词scen。
1 . 没有可能仅仅为了娱乐或锻炼而运动：一旦有了问题，一旦你觉得你输了你和你所属团体会有失体面时，你最野蛮的好斗本能就会被激发出来。
2 . 年看见哈雷慧星的千百万人当中，有多少人能够长寿到足以目睹它在二十一世纪的回归呢？
3 . 人类学家们已经发现，恐惧，快乐，悲伤和惊奇都会行之于色，这在全人类是共通的。
4 . Billie Holiday’s reputation as a great jazz-blues singer rests on her ability to give emotional depth to her songs
5 . 消除通货膨胀应确保还贷的钱应与所贷款的价值相同。
6 . The match attracted a large crowd
7 . 在学习英语中，用习得的方式比学习的效果好得多。
8 . ◎从这个角度看，问题并不像人们一般料想的那样严重。seen in this light, the matter is not as serious as people generally suppose
9 . The chief foods eaten in any country depend largely on what grows best in its climate and soil
10 . 他的教书生涯始于麻省理工学院，但是William Rainey Harper把他吸引到了新成立的芝加哥大学。他在那里正式任职长达整整一代人的时间。他的高级课上的学生觉得他在课上古板得可怕，但私下交流却富有同情和理解。
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