考研背诵50篇——14 A Rare Fossil Record

The preservation of embryos and juveniles is a rate occurrence in the fossil record. The tiny, delicate skeletons are usually scattered by scavengers or destroyed by weathering before they can be fossilized. Ichthyosaurs had a higher chance of being

考研背诵50篇——27. Scientific Theories

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

2013XDF英语刘一男5500词精讲速记 5

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考研背诵50篇——50. Cells and Temperature

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

考研背诵50篇——41.American black bears

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

考研背诵50篇——42.Coal-fired power plants

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

考研背诵50篇——31 British Columbia28.Changing Roles of Public Education

British Columbia is the third largest Canadian provinces, both in area and population. It is nearly 1.5 times as large as Texas , and extends 800 miles( 1,280km ) north from the United States border. It includes Canada s entire west coast and the isl

考研背诵50篇——40 Cohesion-tension Theory

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

考研背诵50篇——36.Plate Tectonics and Sea-floor Spreading

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

考研背诵50篇——26. International Business and Cross-cultural Communication

The increase in international business and in foreign investment has created a need for executives with knowledge of foreign languages and skills in cross-cultural communication. Americans, however, have not been well trained in either area and, cons

考研背诵50篇——25. Movie Music

Accustomed though we are to speaking of the films made before 1927 as silent, the film has never been, in the full sense of the word, silent. From the very beginning, music was regarded as an indispensable accompaniment; when the Lumiere films were s

考研背诵50篇——20 The Historical Significance of American Revolution

The ways of history are so intricate and the motivations of human actions so complex that it is always hazardous to attempt to represent events covering a number of years, a multiplicity of persons, and distant localities as the expression of one int

2017年考研作文段子手必备:高频短语背起来(3)

31. 从另一个角度 from another perspective 32.做出共同努力 make joint efforts 33. 对有益 be beneficial / conducive to 34.为社会做贡献 make contributions to the society 35.打下坚实的基础 lay a solid foundation for 36.综合素

考研作文高分必备经典佳句1

1.When asked about the ongoing uproar involving U.S. President Bill Clinton , most people say the affair involves a purely private matter . But many other people regard his actions as deplorable . I personally think the president committed impeachabl

考研作文高分必备经典佳句2

11. One of the pressing problema facing our nation ( China ) today is overcoming disparities in urban and rural income levels . 我们国家(中国)如今面临的紧迫问题之一是克服城乡收入水平之间的差距。 12. One of the most ser

考研作文高分必备经典佳句4

31. There has been undesirable trend in recent years towards the worship of money . A recent survey showed that X percent of respondents ranked getting rich as their top priority , compared to X percent only a few years ago . Why do people fail to re

考研作文高分必备经典佳句3

21. Perhaps it is time to reexamine the idea that college degrees are a guarantee of intelligence . 也许现在是应该重新考虑大学为是智力的保证这种想法的时候了。 22. A growing number of people are beginning to realize that w