The colorful clothes we wear these days are made by machines.But what did ancient people do if they wanted to wear something colorful？Tie-dye （扎染） was able to do this.
   More than 1，000 years ago，the Bai people in Yunnan used tie-dye to dye their clothes.During the Tang （618—907）and Song （960—1279）dynasties，this technology became so popular that people gave tie-dyed clothes to the emperor as gifts.
   To tie-dye，you need to first use thread （線），rope or other tools to tie，sew （縫） or clip （夾） your cloth togejye.air.The Bai people usually make the blue dye from a plant.The folded cloth is then put in the dye.
   As the cloth is folded，some parts become dark blue，while other parts have a lighter color.When you open the cloth，you'll see beautiful patterns.
   In the 1960s，tie-dye became a fashion trend （趨勢(shì)） in the US.People tie-dyed T-shirts and jeans in imaginative ways.Many children in the US still learn tie-dye in their art classes.
   At Dior's spring 2019 show，Italian designer Maria Crazia Chiuri surprised people with tie-dye dresses.It seems that the tie-dye trend has never really gone away.
（1）When did the Bai people in Yunnan begin to use tie-dye？

More than 1，000 years ago.

More than 1，000 years ago.

（2）Who did people give tie-dyed clothes to as gifts during the Tang Dynasty？

People gave tie-dyed clothes to the emperor as gifts.

People gave tie-dyed clothes to the emperor as gifts.

（3）What is the blue dye usually made from？

The Bai people usually make the blue dye from a plant.

The Bai people usually make the blue dye from a plant.

（4）Why does the cloth have different colors in the dye？

Because the cloth is folded.

Because the cloth is folded.

（5）Where did tie-dye become a fashion trend in the 1960s？

In the US.

In the US.