The modem society has witnessed amazing development in astrology. In
recent years scientific investigation of comets has (36)
because of a growing interest in the origin of the sun and
(37) . Scientists want to learn how comets are formed. They
think that such information will be (38) to man’s
understanding of the origin of the (39) system.
The word "comet" comes from the Greek and means "hairy object". In history
comets have a special place. People believed that they brought news of death,
(40) or military victories. The tails of comets
provide (41) with spectacular sights at night. Comets tails
are millions of kilometers long. The tail (42) reaches
lengths of 250 kilometers and more. There was a written
(43) of comet as early as 1770 B.C. The Chinese kept careful
record and so did the Babylonians. (44) . The
most famous comet in history is called Halley’s Comet. (45)
.It was named after Edmond Halley, an English scientist. (46)
The comet appeared in 1758, as he predicted, 16 years after his death
and will return again in 1986.
【参考答案】
It was he who discovered this comet and predicted that it ap......