In 1848,gold was discovered in California; from all over the

In 1848,gold was discovered in California; from all over the nation,thousands of young men set ou
A gold miner came into a city looking for a pair of pants.He wanted pants strong enough to stand up to the rough work of mining.He met a young man named Levi,who sold heavy cloth for tents and wagon tops.They asked a tailor to use heavy cloth for their pants.Then Levi went into the business of making work pants.He asked his brothers to send him some strong blue cotton cloth called denim .With this blue denim cloth,Levi started making the kind of pants we call blue jeans today.They were sewed up in the same way as other pants.
In 1860,a miner said that the pockets weren't strong enough to hold the pieces of gold he found.The pockets kept pulling loose from the pants.The cloth was all right.It was the thread that wasn't strong enough.So Levi used rivets to attach the pockets onto the pants.
Cowboys needed tough pants,too.They liked their pants to fit tightly.But the rivets marked the cowboys' saddles.So Levi covered the rivets with cloth.Then everybodywas happy.
1.This article as a whole is about _______.
A.how people got blue jeans B.the Gold Rush
C.denim,rivets and blue jeans D.cowboys and blue jeans
2.While not stated in the article,you can tell that _______.
A.everybody who went to California got a lot of gold
B.Levi found riches in the gold fields
C.Levi made more money than many gold miners
D.Levi sold more jeans to cowboys than to gold miners
3.The word this in the first paragraph,last sentence,refers to ________.
A.California B.gold
C.many people looking for gold D.the discovery of gold
4.Levi used strong blue cotton cloth to make pants because _____ ____.
A.gold miners liked the blue color B.this was the only cloth he had
C.miners wanted pants which could stand rough work
D.cowboys liked their pants to fit tightly
5.Which of the following sentences is not correct?
A.It was Levi who started the business of making blue jeans.
B.It was one tailor who started making blue jeans.
C.It was in California that blue jeans first became popular.
D.It was in California that gold was discovered.

1.A.2.B 3.文章不全,看不到第一段最后一句话.4.C.5.B
再问： 补充问题 In 1848, gold was discovered in California; from all over the nation, thousands of young men set out for California. People called this the time of the Gold Rush. 全文大概意思是？
再答： 3.C 1848年，加利福尼亚州发现了黄金，来自全美成千上万的年轻人动身去往加利福尼亚，人们称这一现象为淘金热。