Dajing Wu introduced himself to the skating world four years ago at the Sochigames, wh

ere he took silver in the 500-meter short-track just behind all-timegreat Viktor Ahn.

In Pyeong Chang, he’s done more than just reintroduce himself. He’s put hisname in the record books. Wu skated a then-Olympic record 40.264 seconds inqualifying heats on Tuesday, February 20, only for fellow countryman Ziwei Rento break that record two days later in the quarterfinals Thursday with a 40.032in the first of four quarterfinal heats.

Undeterred, Wu came right back in the second quarterfinal heat and skated a39.800, not only retaking the Olympic record from Ren but also taking the worldrecord from American star J.R. Celski, who skated a 39.937 back in 2012 at aWorld Cup final in Calgary, Alberta, Canada.

Less than an hour after setting the world record, Wu won his semifinal heat,qualifying for the finals, which also take place Thursday night in PyeongChang(Thursday morning in the United States). Ren, meanwhile, failed to qualify forthe “A” Final after finishing third in the other semifinal heat.

In the final, Wu false-started on the initial gun but rebounded nicely on therestart. He used his inside position to jump to the front of the pack and wasnever really challenged by any of the other three skaters. He broke his ownworld record with a scintillating 39.584 seconds as he finished his final lapwith his hands held high in victory. Daeheon Hwang and Hyojun Lim, both of hostnation South Korea, took silver and bronze, respectively.

1.Dajing Wu became famous four years ago because ________________.

选项格式：A.he wonthird place at the Sochi games

B.he broke a worldrecord in the 500-meter short-track

C.he won asilver medal at the Sochi games

D.he broke aOlympic record in the 500-meter short-track

2.What seems to be J.R. Celski's major achievement？

A.He retookthe Olympic record from Ren.

B.He skated a 39.937in 2012 at a World Cup final in Calgary, Canada.

C.Hebroke a record two days later in the quarterfinals Thursday with a 40.032 inthe first of four quarterfinal heats.

D.He cameright back in the second quarterfinal heat and skated a 39.800.

3.Which statement about the semifinal heat is true？

A.Soon aftersetting the world record, Wu won his semifinal heat, qualifying for the finals.

B.Wuskated a 40.032.

C.Wu's fellow countryman ZiweiRen broke that record two days later。

D.Wu skated a then-Olympic record 40.264 seconds

4.How did Wu gain his Olympic medal in the final？

A.He brokeZiwei Ren's world record with a scintillating 39.584 seconds.

B.Heheld his hands high throughout the competition.

C.Hetook advantage of his inside position to jump to the front of the pack.

D.Hefalse-started on the restart.

5.Which of the following statements is true about theperformance of South Korea's skaters in Pyeong Chang？

A.Theyfinished their final lap with their hands held high in victory.

B.DaeheonHwang and Hyojun Lim took a silver medal and a bronze medal respectively.

C.Theywere never really challenged by any of the other three skaters.

D.DaeheonHwang and Hyojun Lim, both of host nation South Korea performed better thanDajing Wu.