2017托福考试阅读高频词汇解析（十八）_第2页

　　§ oxygen

　　§ 氧

　　§ All of these from the group one and two through the group five and six elements, but what about elements, what about molecules like hydrogen, or nitrogen, or maybe oxygen?

　　§ quartz

　　§ 石英、水晶

　　§ This story, though, raises the question of why there is but a single ejecta layer of iridium andshocked quartz in late Cretaceous rocks around the world.

　　§ distinguish

　　§ differentiate

　　§ 区分、辨别

　　§ If this were true, it should be equally easy to distinguish among individuals of any species, so long as you have the requisite perceptual abilities of that species.

　　§ shale

　　§ 页岩

　　§ In anticipation of a demand surge, the oil majors have started opening their wallets for expensive gas projects like gas liquefaction plants and pricey gas shale wells.

　　§ sandstone

　　§ 砂岩

　　§ Red maple leaves and gold on a cottonwood announce the arrival of fall in the pink sandstonecanyons of Zion National Park in Utah.

　　§ endure

　　§ 持续

　　§ Rather than being hoodwinked, I would endure anything.

　　§ extinction

　　§ 灭绝

　　§ But then, while no one wants to think of extinction, the word is far less of an abstraction in Hawaiithan in other places.

　　§ stratum

　　§ 岩层(单数)

　　§ Inspired by the Confucian tradition of meritocracy, Beijing practices, though not alwayssuccessfully, performance legitimacy across the whole political stratum.

　　§ emerge

　　§ appear, come out

　　§ 出现

　　§ Disappear

　　§ For centuries, astronomers have recorded when these dark blemishes on the solar surface emerge, only for them to fade away again after a few days, weeks or months.

　　§ sediment

　　§ 沉淀物

　　§ That there are not could be explained by the fact that the accumulation of sediment in mostrocks is so slow that the two layers are, in effect, superimposed.

　　§ temporal

　　§ 时间的

　　§ Although DB2 will automatically store historical versions of rows, you must create a history tableto contain the rows and associate it with the system-period temporal table.

　　§ sequence

　　§ order

　　§ 顺序

　　§ Because node structures go in only one direction, they know nothing about the sequence ofnodes that precede them.

　　§ faunal

　　§ animal

　　§ 动物的

　　§ Intermittent faunal connections do not necessarily require land bridges to connect isolate dareas only to be afterwards destroyed;