1 . Directions: Complete the following passage by using the words in the box. Each word can only be used once. Note that there is one word more than you need.

A. launch B. dedicated C. identified D. barely E. hit F. specifically G. personalized H. encountered I. divides J. originals K. devoted

For many young Chinese, neither “The Shepherd in Keketuohai (可可托海的牧羊人) ” nor the name of its original singer, Wang Qi, sounds familiar. Their parents, however, may know every word in the song.

Such generational     1     in musical tastes aren't unusual. What may be surprising is where most middle-aged Chinese people may have first     2     the song: the popular short-video app Douyin. A March search for the song's name on Douyin returned more than seven million clips, many from an increasing number of accounts popular among middle-aged users.

That some Douyin users might not be familiar with a song, even as others are constantly hearing it, is the result of the platform's highly     3     recommendation algorithms (算法) . They are able to produce different video feeds for each user based on their musical preferences and tastes.

In the five years since its     4     in 2016, Douyin has grown into one of China's biggest platforms for pop music. On QQ Music, the largest digital music service provider in the country, songs popular among short-video creators are even ranked on a    5     Douyin Chart. The variety and scale of the app's user base mean all genres and styles can find an audience, and more and more artists now choose Douyin to debut their new tracks in the hopes of achieving a viral     6    .

One of the most popular uses for music on an app like Douyin is known as a challenge video. Short clips from songs are played over a well-designed dance, which creators then challenge their followers to imitate. If a given dance challenge shows promise, it- is quickly     7     by the platform's algorithms and pushed to a larger user pool. Over time, more and more pop music has been produced     8     with such uses in mind, and songs are now being composed to be easily adapted to these short video formats.

This trend is having an impact on our relationship to music. Users often find they can     9     recognize or remember the artists, names or the titles of songs. Meanwhile, the songs themselves are often cut up to focus only on their catchiest parts, while covers (翻唱版本) often go on to achieve far more fame than the     10