Sharman through in Moscow
GB's Hannah England came through the women's 1,500 metres heats on a morning compatriot Laura Weightman's struggled with injury problems.
A silver medallist two years ago in Daegu, England failed to make the London 2012 final just weeks after being spiked in the Achilles.
There are no such issues in Moscow, where the 26-year-old showed composure under pressure to finish her heat third in 4 minutes 08.05 seconds.
"I felt good," England said. "I was quite nervous before because I had not raced since the trials.
"That feels like an awful long time ago. I am glad to get that one under my belt and go forwards from that.
"There was a bit of argy-bargy at the back. I was in a very good position and then really 15 metres later I was in a bad position.
"I just tried to think 'all those girls have made a surge, I haven't and I can come around them later'."
Unlike England, World Championship debutant Weightman was unable to make it through the heats.
The 22-year-old reached last year's Olympic final, but has missed a lot of training following a fall at the British Championships last month.
Weightman made the start line but was only able to manage an 11th-place finish in the first 1,500m heat, posting a time of 4 mins 14.38 secs.
"I was on crutches for two weeks after the trials with a bruised bone in my foot, so I couldn't run for two weeks," the Steve Cram-coached athlete said.
"I've had 10 days of running just to try and get my body going.
"I was hoping that by coming here I would try and rely on my strength built over the winter to get me through. But I just had no kick, no speed.
"Steve said we've nothing to lose by going out there today and racing, it will go one way or the other.
"I'd either be fine and be strong enough to get through or it would be as it was today where I didn't have enough in my legs."
Weightman was the only British athlete to exit the World Championships during the morning session.
Nigel Levine reached the men's 400m semi-finals with a comfortable fourth-place finish in 45.41s, while 110m hurdler William Sharman crossed the line third in 13.51s.
Asha Philip was the last British athlete in action and produced a 11.29s run, securing a third-place finish in her heat.
"I thought it was going to be hard to make the top three," she said. "Then I thought 'I'm not going out first round, so I'm definitely going to do it'. 11.29 for third - I'm really pleased.
"It's good, it means I can do it. It doesn't matter what they've run before, I still have to make sure I believe I can still beat them and now I'm through to the next round."
Tonight Shara Proctor goes in the long jump final, while Dwain Chambers, Harry Aikines-Aryeetey and James Dasaolu go in hunt of 100m glory.