In science, a theory is a reasonable explanation of observed events that are related. A theory often involves an imaginary model that helps scientists picture the way an observed event could be produced. A good example of this is found in the kinetic

发表于:2018-12-04 / 阅读(50) / 评论(0) 分类 考研背诵50篇

Television has become the main source of informatio [00:03.84]and entertaiment for the average America [00:07.97]It is estimated that by the time a child reaches 1 [00:12.64]he or she has spent almost twice as much time watching TV as in the classroo

发表于:2018-12-04 / 阅读(145) / 评论(0) 分类 考研英语听力基本功4

Many people have criticized television programmin [00:18.39]They complain that it does not challenge the intellec [00:37.59]shows too much violenc [00:47.44]and appeals to the least educated of viewer [01:04.86]in order to get the largest audienc [01

发表于:2018-12-04 / 阅读(132) / 评论(0) 分类 考研英语听力基本功1

1 做真题。完成后认真对照答案把每个不懂的单词弄懂。若已完成。请再做一次。 2 翻看历年真题中的写作真题,并把真题中的写作BRAIN STORM。准备环境和教育相关单词。 3 翻看历年真题中的阅

发表于:2018-12-12 / 阅读(42) / 评论(0) 分类 英语学习方法

网上交友: 假设你是李华,在互联网上看到英国高中生David登的一则启事 :希望结识一位中国朋友,以便学习中国的语言、文化。请你以李华的名义用英文给David发一封电子邮件,主要内容包

发表于:2018-12-18 / 阅读(59) / 评论(0) 分类 英语作文

一、哥本哈根联合国气候会议 As world leaders are in Copenhagen (哥本哈根)this month,talks about climate change are gathering steam. But is climate change the most pressing threat(威胁)for mankind? Write an essay to show your opini

发表于:2018-12-18 / 阅读(160) / 评论(0) 分类 英语作文

下表是某校关于中学生双休日活动现状的一份调查,请结合表格内容,用英语写一篇120150单词的短文,就中学生应如何过双休日发表你的看法。 学习情况 几乎都在学习 16% 半天学习半天活动

发表于:2018-12-18 / 阅读(63) / 评论(0) 分类 英语作文

一、雾霾天气:假如你是李华,你的英国笔友Bill来信询问你家乡是否有雾霾天气,情况如何。请按下面写一封电子邮件: 1.感谢他得关心; 2.介绍情况:(1)去年以来以发生数次雾霾天气(2)人们已

发表于:2018-12-18 / 阅读(142) / 评论(0) 分类 英语作文

Cells cannot remain alive outside certain limits of temperature and much narrower limits mark the boundaries of effective functioning. Enzyme systems of mammals and birds are most efficient only within a narrow range around 37C; a departure of a few

发表于:2018-12-30 / 阅读(65) / 评论(0) 分类 考研背诵50篇

American black bears appear in a variety of colors despite their name. In the eastern part of their range, most of these brown, red, or even yellow coats. To the north, the black bear is actually gray or white in color. Even in the same litter, both

发表于:2018-12-30 / 阅读(62) / 评论(0) 分类 考研背诵50篇

The invention of the incandescent light bulb by Thomas A. Edison in 1879 created a demand for a cheap, readily available fuel with which to generate large amounts of electric power. Coal seemed to fit the bill, and it fueled the earliest power statio

发表于:2018-12-30 / 阅读(68) / 评论(0) 分类 考研背诵50篇

Atmospheric pressure can support a column of water up to 10 meters high. But plants can move water much higher; the sequoia tree can pump water to its very top more than 100 meters above the ground. Until the end of the nineteenth century, the moveme

发表于:2018-12-30 / 阅读(99) / 评论(0) 分类 考研背诵50篇

The theory of plate tectonics describes the motions of the lithosphere, the comparatively rigid outer layer of the Earth that includes all the crust and part of the underlying mantle. The lithosphere(n.[ 地 ] 岩石圈 )is divided into a few dozen p

发表于:2018-12-30 / 阅读(103) / 评论(0) 分类 考研背诵50篇

1. Ask anyone to Indian on the east, and they'll tell you simply it hot up there. Temperature is in the triple digits, and the weather is being blamed for at least 24 deaths. 2. Libya is taking a major step toward democracy today. Voters are filling

发表于:2019-01-11 / 阅读(140) / 评论(0) 分类 美联社新闻一分钟2012(七月)

四级听力对很多人说都是个难题,很多人会问四级听力不知道如何备考,那你真的有效备考了吗?你有关四级听力的疑问都解开了吗?下面这篇文章就为你解开四级听力注意事项,希望可以帮助

发表于:2019-01-16 / 阅读(46) / 评论(0) 分类 大学四六级阅读

Men Make Women Gain Weight 爱情影响女性体重变化 Theres a great reason why a womans weight may fluctuate. Some might say its a hectic work schedule preventing them from getting to the gym. 女性的体重变化受到很多因素的影响。有

发表于:2019-02-01 / 阅读(47) / 评论(0) 分类 实用英语

For many women high-heeled shoes can make them both happy and rather painful. For anyone who's ever worn them, youll know that even walking a long distance can be a struggle. So its hard to imagine running a race in them. Well thats exactly what happ

发表于:2019-02-05 / 阅读(93) / 评论(0) 分类 CCTV9英语新闻2013年08月

由于你的父母执意希望你报考本地名校,请以化名王小二的名义写一封信说服父母同意你报考清华大学 Jan, 1st, 2013 Dear parents, I know its a bit hard/difficult for you to accept my choice to apply to Tsinghua Univ

发表于:2019-02-13 / 阅读(160) / 评论(0) 分类 英语作文

微博只有短短的140个字符,却能包含人生百味,说尽生活的真谛。精选17条英文励志微博,让你从只言片语中感受生活的美好,好好读一读,总有一条值得你收藏一辈子。 1. Balance is the key to

发表于:2019-02-17 / 阅读(53) / 评论(0) 分类 英语美文

Foreign Investment 1、外商投资的优越性 2、外资给中国经济建设带来的变化 3、如何进一步吸引外资 The merit of foreign investments lies in many aspects. It increases capital investment in our economic construction, spee

发表于:2019-02-17 / 阅读(72) / 评论(0) 分类 四六级写作指导