阅读必备:托福考试阅读长难句汇总6
>>2019年托福考试:阅读必备:托福考试阅读长难句汇总6
1.Following each mass extinction, there is a sudden evolutionary burst as new species develop to fill the ecological niches opened by the event.
2.Earth is a target in a cosmic shooting gallery, subject to random violent events that were unsuspected a few decades ago.
3.Early in the century, a pump had come into use in which expanding steam raised a piston in a cylinder,and atmospheric pressure brought it down again when the steam condensed inside the cylinder to form a vacuum.
4.The final step came when steam was introduced into the cylinder to drive the piston backward as well as forward thereby increasing the speed of the engine and cutting its fuel consumption.
5.Iron manufacturers which had starved for fuel while depending on charcoal also benefited from ever-increasing supplies of coal; blast furnaces with steam- powered bellows turned out more iron and steel for the new machinery.
6.He received rudimentary village schooling but mostly he roamed his uncle's farm collecting the fossils that were so abundant in the rocks of the Cotswold hills.
7.The companies building the canals to transport coal needed surveyors to help them find the coal deposits worth mining as well as to determine the best courses for the canals.
8.In 1831 when Smith was finally recognized by the Geological Society of London as the “father of English geology”, it was not only for his maps but also for something even more important.
9.Maturation of the frontal lobes of the brain continues throughout early childhood, and this part of the brain may be critical for remembering particular episodes in ways that can be retrieved later.
10.Demonstrations of infants’ and toddlers' long-term memory have involved their repeating motor activities that they had seen or done earlier,such as reaching in the dark for objects, putting a bottle in a doll’s mouth, or pulling apart two pieces of a toy.
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