大学英语四级考试高频词汇分层妙记法(16)

　　常用词汇Unit1精题练习与答案

　　精题练习

　　选词填空，完成下面句子。

　　thick darkness asserted continuouslyblaze

　　atmosphereoutlines contained salty immediately

　　process barely worn poured 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 basinswere sculptured out of the surface of the earth in 5 .

　　As soon as the earths 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 primevalocean 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 10 that has never stoppedthe 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.

　　汉译英练习。

　　1.Do you think it worthwhile ?

　　2.Do you believe ?

　　3.Although the prices of medicine have been reduced several times， .

　　4.Their sudden attack .

　　5.In the budget for this building, they failed to .