CRI听力:Final Olympic Preparations in London

The lead up to the 2012 London Olympic Games has been fraught with controversy.

The British Army was forced to step in to plug gaps in Olympic security after contractor G4S failed to provide the required number of personnel.

Questions have also been raised as to whether the city's transportation network can cope with the huge Olympic crowds.

And with only a week to go, a fresh scandal has broken.

Thousands of British immigration, passport and border officials have voted to stage a one-day strike next Thursday, the eve of the Olympic Games.

British Interior Minister Theresa May has condemned the action.

"I think that it's shameful, frankly. They are holding a strike on one of the key dates for people coming into this country for the Olympic Games, I believe it's not right for them to hold a strike, they will risk damaging people's enjoyment of coming through into the UK. We will of course put contingency arrangements in place to ensure that we can deal with people coming through the border as smoothly as possible."

Despite all the controversy the show must go on.

The biggest anti-doping operation in the history of the Olympics is beginning at the London 2012 laboratory.

Kerry O'Callaghan from GlaxoSmithKline who are responsible for the operation says this Olympics will have the most extensive testing ever.

"Testing is happening throughout the whole period and we are going to be testing 6000 athletes across the Olympic and Paralympic Games, more than at any other games. And that means that over half the athletes will be tested, and anyone who stands on a podium. So it is an incredibly high level of testing that is going on."

And Athletes from around the world including China have been arriving in the UK capital for their final preparations.

The Chinese swim team is hoping to capitalize on their strong 2011 World Championships performance.

Beijing Olympic silver medalist Jiao Liuyang however says she just hopes to beat her own record in the pool when she swims in the 200m butterfly.

"I'm competing with myself. I think all the competitors in the final will be very good, that's why I'm only competing with myself."

The swim team has been preparing in the south-west British city of Bath and will move into the Olympic village on Monday.

For CRI, I'm Emily Hennessy.