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托福写作核心词组一览

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2018-07-12 14:45

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【 liuxue86.com - 托福作文 】

  对于托福写作的同学们来说,不知道对于自己的写作能力有没有自信呢?今天就和出国留学网来看看托福写作核心词组一览。

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  1.a couple of 两三个,几个

  Although he thought of the key idea in 1951, the first maser was not completed until acouple of years later.

  2. account for 解释

  Variations of clay composition and the temperatures at which they are fired account forthe differences in texture and appearance.

  3. adapt to 使适应于

  They have been able to adapt to ecological changes.

  4, adorn with sth 用…装饰

  Some pots were adorned with incised or stamped decorations.

  5.appeal to 吸引

  Publishing literature consisting of exciting stories that would appeal to both childrenand adults

  6.apply to 适用于

  Ethological theory began to be applied to research on children in the 1960’s.

  7.at best 充其量,最多

  Hunting is at best a precarious way of procuring food, even when the diet issupplemented with seeds and fruits.

  8.at intervals 相隔一定距离

  However, at intervals of 10 to 100 years, these glaciers move forward up to 100 times faster than usual.

  9.at the expense of sth 在损害…的情况下

  A multitude of microorganisms make their livings directly at the expense of othercreatures.

  10.at the height of sth 在…最鼎盛时期

  The violin had reached the height of its popularity by the middle of the eighteenthcentury. 11.back and forth 来回地 They then spiral back and forth between the Earth's magnetic poles very rapidly.

  12.be absent from 缺席,不在 Lacking the right to vote and absent from the seats of power, women line were not considered an important force in history.

  13.be capable of 能..的 Many animals are capable of using objects in the natural environment as rudimentary tools.

  14. be characterized by 以…为特征  The nervous system of vertebrates is characterized by a hollow, dorsal nerve cord that ends in the head region as an enlargement, the brain.

  15.be composed of 由…组成

  Ocean life is primarily composed of plants.

  16.be concerned with 与某事物有关

  Ethnology is concerned with the study of adaptive, or survival, value of behavior and its Evolutionary history.

  17.be distinct from 与…不同

  Jupiter and the other giant planets are of a low-density type quite distinct from the terrestrial planets

  18.be essential to 对…不可缺少

  Public performance is essential to verbal art.

  19.be exposed to 使接触,使遭受

  Body contact reduces the surface area exposed to the cold air.

  20.be far from 离…很远,根本不是

  But far from being random, molt is controlled by strong evolutionary forces that have established an optimal time and duration.

  21. be hostile to 极不友好的,极厌恶的

  Ocean bottom is a hostile environment to humans

  22.be regarded as 被认为是

  Humanity's primal efforts to systematize the concepts of size, shapes, and number are usually regarded as the earliest mathematics.

  23.be related to 与…有关的,相联系的

  Why is dancing closely related to popular music in the United States?

  24. be responsible for 对…负责

  In fact, nuclear reactions that convert hydrogen to helium are responsible for most of the energy that stars produce.

  25. be sensitive to 对…敏感的

  Ants can be extremely sensitive to these signals.

  26.be subjected to 经历,遭受

  Oil is formed when organic material trapped in sediments is slowly buried and subjected to increased temperatures and pressures, transforming it into petroleum.

  27. be superior to 优越于

  Natural vitamins are superior to synthetic ones

  28 .be traced to 找出根源

  The ancestry of the piano can be traced to the early keyboard instruments of the fifteenth and sixteenth centuries.

  29. be/become aware of 意识到,认识到

  People became aware of the new service by word of mouth or newspaper advertisements.

  30. be/become/get accustomed to 习惯于

  In the harsh environment of northern Europe, Scandinavian women had been accustomed to practicing forms of shifting cultivation, and they immediately understood

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