题目 You hear: "The seasons are caused by the Earth's tilt." Which season is it when the Northern Hemisphere is tilted away from the sun? A. Winter B. Summer C. Spring 相关知识点: 试题来源: 解析 A。解析:季节是由地球的倾斜造成的。当北半球倾斜远离太阳时,是冬季。 反馈 收藏 ...
[听力原文]Most waves are caused by winds, though earthquakes on the ocean bed can also cause them, and tides are caused by the effect of the gravity of the moon on the earth and also, although to a lesser extent, the sun’s gravity. One bulge of water is drawn upon the side of th...
Trees produce oxygen for all living things. Trees help to clean the air, soil and water, making the Earth a beautiful livable place. It’s time to save trees and protect forests. Saving trees around you Every town and city has laws about protecting trees, and tell people which tree specie...
That's right. Astronomers know that comets are full of Ice and think comets brought water to earth when they crashed into it. Evidence of those crashes has been erased by the constantly moving surfaces on earth but not on the moon. So compar...
Despite all this ongoing research, there's no conclusive evidence that our weather can be controlled. Chris Bell, a lecturer inmeteorologyat the University of East Anglia, told BBC Future: "We may, one day, have the technology to contr...
8. There's no denying the fact that... 不可否认... 9. Nothing is more important than the fact that... 没有什么比...更重要 10. Today, ..., which have brought a lot of harms in our daily life. First, ... Second, ... What makes things worse is that... 现在,……,它们给...
For the study of the relationship between birds and dinosaurs, these details are very 9 . Yet still nobody knows 10 and why feathers appeared on the earth. Scientists hope to solve the puzzle (谜题) by studying the area where the fossils were found. “These beds date to a time when ...
D.Dogsarebetteratfindingouttrappedpeople.三.语法填空 GlobalwarmingcouldmakehumansshorterScientists claimtohavefoundevidencethatitcausedtheworld'sfirsthorses ①___(bee) smallernearly50millionyearsago.Infact,ateamfromtheuniversitiesofFloridaandNebraskasays ②___hasfoundalinkbetweentheearthheatingupandthesizeof...
D.The Earth’s vegetation might be destroyed.试题答案 在线课程 【答案】 【1】D 【2】C 【3】C 【4】B 【解析】 试题分析: 【1】由第一段最后一句“However,some climate changes are caused by air pollution and these changes may increase.”可知,答案为D项。 【2】根据第二段“There is only...
Firstly, let's start with the causes of forest fires. Forest fires are usually caused by either human activities or natural factors. Human activities, such as destructive logging, burning of agricultural residues, and fire...