本篇学习资料摘自《大学英语四级词汇分层妙记》图书，本书极有针对性地把单词置于语境当中，为同学们设计了一套轻松快捷、事半功倍的词汇学习方法。 根据每个词汇在历年考试中出现的次数、考查的深度、凸显的盲点，将大纲词汇分为高频词汇、常用词汇、熟词僻义词汇、拔高词汇四大块来区分学习，不同词汇、不同侧重，有主有次、有详有略，让您将时间放在最常考的词汇上，让您将精力放在最生疏的释义上。 精讲全部难点，同根词/派生，常用搭配（意思，例句），短语及用法，同义词辨析，难句示例，真题例句等，系统夯实这些重点词汇。 精心设计新题型练习。让您在题目练习中巩固、深化刚刚学过的词汇，在练习中检测学习的效果。同时，为了帮助考生记忆以及扩大知识面，在附录中列有单词记忆技巧、十年四级阅读分类词汇、核心短语、常见缩略词、常见前后缀以及常见词根。这部分内容是一线老师的精心总结，帮助同学们攻克词汇一大难关。

　　常用词汇Unit1精题练习与答案

　　精题练习

　　(一)选词填空，完成下面句子。

　　[A]thick [B]darkness [C]asserted [D]continuously[E]blaze

　　[F]atmosphere[G]outlines [H]contained [I]salty [J]immediately

　　[K]process [L]barely [M]worn [N]poured [O]abundant

　　When the earth was born, there was no ocean.The gradually cooling earth was enveloped in heavy layers of cloud,which 1 much of the water of new planet.For a long time its surface was so hot that no moisture could fall without 2 being reconverted to steam.This dense, perpetually renewed cloud covering much have been so 3 that no rays of sunlight could penetrate it.And so the rough 4 of the continents and the empty ocean basins(盆地)were sculptured out of the surface of the earth in 5 .

　　As soon as the earth’s crust cooled enough,the rains begin to fall.They fell 6 ,day and night,days passing into months, into years, into centuries.They 7 into the waiting ocean basins, or, falling upon the continental masses,drained away to become sea.

　　That primeval(原始的)ocean must have been only faintly 8 .But from the moment the rains began to fall, the lands began to be 9 away and carried to the sea. It is an endless, inexorable(不可动摇的) 10 that has never stopped—the dissolving of the rocks, the leaching out of their contained minerals, the carrying of the rock fragments and dissolved minerals to the ocean. And over the eons of time, the sea has grown ever more bitter with the salt of the continents.

　　(二)汉译英练习。

　　1.Do you think it worthwhile (花这么多的时间和精力来安排这样一个活动)?

　　2.Do you believe (那些所谓的名人拍的医院广告吗)?

　　3.Although the prices of medicine have been reduced several times， (但许多人仍然觉得难以承担).

　　4.Their sudden attack (使我们更加注意我们周围的危险).

　　5.In the budget for this building, they failed to (考虑价格增长的因素).

　　参考答案

　　(一)1.[H] 2.[J] 3.[A] 4.[G]5.[B]

　　6.[D] 7.[N] 8.[I] 9.[M] 10.[K]

　　(二)

　　1.to spend so much time and energy(in)arranging an activity like this

　　2.the advertisements which are made by so-called famous people for the hospitals

　　3.many people still find it difficult to afford it

　　4.made us more aware of the danger around us

　　5.consider/take into account the factor of increasing price

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