题目内容：

一道初一阅读理解题
we have always been interested in the moon.2000 years ago people already knew itmoved around the earth and where it would be in the sky at different times of the year.Atthat time,everything about the moon was learned by watching it carefully in the sky.
When scientists could use telescopes（望远镜）to study the moon more closely,theirideas began to change.They could see the moon was made of rocks（岩石）.Most scientiststhought moonrocks would be different{rom those on the earth.This was because theybelieved thc moon was a planet that was caught by the earth’s gravity（引力）millions ofyears earlier.
In 1969,moonroeks were finally brought to the earth and studied.Much to theirsurprise,scientists found the moon and the earth were made of the same things.But therewas no watcr on thc moon.Once again we needed new ideas for this new information.
Aftcr years of study,most scientists now think that the mooll was once part of theearth.They bel ieve very early in its history,maybe 4 million years ago,something aboutthe sizc of Mars hit（击中）the earth.This sent billions of rocks into space around ourplanet.These rocks slowly joined together and after many years became the moon.
In thc future,cven though our ideas about the moon may change again,w6 will stillbe interested in it
1.From passagewe know the moon was made of--------
A earth B rocks C water D metal
2.When did people the writer wants to tell us---------
A In 1969 B In 1956 CIn2006 DIn1966
3.In the passage the writer wants tell us------------
Awhy peiple are interested in the moon
Bhow ideas about the moon have changed over time
Cwhere the moon came fron in the past
Dthat people have finally learned the truth about the moon
4.Before 1969 most scientists thought the moon was--
A part of earth billions of years eaasier
B older than the earth
C a planet caught by the earth's gravity
D made of the same things as the earth
5.From the passage we can learn that-----
A the earth was once part of the moon
B.new information brings new ideas