Today’s festivals have a wide     1     of origins, including the seasons of the year, famous     2    , important events, and religions. The     3     festival is one of the most popular festivals and is celebrated in many cultures. Customs play a     4     role in festivals,   but they can change over time. For example, many Chinese cities no longer allow     5     during the Spring Festival, as they can increase air pollution. These days, festivals are becoming more     6    , with people spending more money on gifts. Festivals    7     people’s wishes, beliefs, faiths, and attitudes towards life. People are     8     to spend time with family, and to relax and enjoy life.

Nowadays the virtual choir is popular with people.They have the opportunity     1     (sing) together with hundreds of other people.Anyone can take part in a virtual choir from anywhere—all you need is a video camera and     2     Internet connection. They record themselves when     3     (perform) alone on video.These videos     4     (upload) onto the Internet, and then put together into one video.The virtual choir has proved to be a positive influence on the lives of many people.Eric Whitacre, the creator of the virtual choir，fell in love     5     music in the university.In 1997, he received a master’s degree in musical composition.Over the next 10 years, Whitacre’s original compositions began to become popular.This led to the    6     (create) of the virtual choir.In 2009, Whitacre received a video of a girl     7     was singing one of his works.     8     (inspire), he founded his first virtual choir. Since then, the virtual choir     9     (become) a worldwide phenomenon. The virtual choir is making the world a     10     (good) place.

Living in a city can be     1     (stress). But some people in Bogota, Colombia have found a place to help ease stress and get     2     peaceful break from busy life. The place is a protected park for hummingbirds.

The park     3     (sit) at the top of Monserrate Hill, east of the city, in a place     4       (know) as the Paramuno corridor. The area contains a forest that has turned into a peaceful place for both people and birds. As the hummingbirds fly from flower     5     flower, some people study the animals through binoculars (望远镜). Others capture pictures with cameras or phones.

“Sometimes it doesn't seem real because we are close to a city of eight million inhabitants (居民)     6     make noise every day,” said Camilo Cantor, a caretaker in the park. His job is     7     (mix) water and sugar that is put in bird     8     (feeder) along a 300-meter path.

“Visitors to the park can see between 25 to 35 different species of birds,” Cantor said. Ten years ago, the hill was completely deforested,     9     (mean) there were not any trees left on it.   

But workers began to replant local trees and flowers to bring the forest back to life.     10    (Present), there are 115 species of birds, including 18 kinds of hummingbirds and some migratory ones