The existence of the earth magnet and the invention of the navigating compass ◇Our earth is a big magnet and a little freely (1)
__
magnetic needle lines itself with the earth magnet to point north and south.
◇(2)
___
on the idea above, the navigating compass was invented.
The possibility of birds’ built-in compasses ◇ One piece of evidence is the (3)
of many birds between their summer homes and winter homes.
◇ Birds can recognize star patterns on clear nights and keep on course (4)
under cloudy skies
The
(5)
on pigeons’ and bees’ built-in compasses
◇Little magnets were tied to the pigeons’ heads to (6)
their magnetic sense.
◇The pigeons’ magnetic sense seemed to be affected on (7)
days.
◇Similar things with the same results were done with bees.
The
(8)
of the magnetic stuff for the animal compass ◇Little rod-like bacteria were found by chance to swim together in the direction of (9)
.
◇Some animals had a chain of dense magnetic particles in or close to the (10)
inside their bodies.
(4)
【2017届高考英语考前冲刺:专题精选任务型阅读】相关文章:
★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (49)
★ 2017届高考英语二轮复习大题冲关秘籍阅读理解七选五:创新押题(含解析)
★ 2017届高考英语二轮复习大题冲关秘籍阅读理解七选五:考纲解读(含解析)
★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (25)
最新
2017-04-24
2017-04-24
2017-04-24
2017-04-24
2017-04-21
2017-04-21