阅读短文，从每题所给的四个选项(A、B、C、D)中，选出最佳选项。 First Woman Walking The Great Wall Karen Churches has been dreaming of becoming the first woman to walk the entire length of the Great Wall for six years．Her dream is about to become a reality．She stopped her job as a manager in London early this month to set out on her expedition：to follow the Great Wall from Yumenguan in the Gobi Desert to Shanhaiguan on the east coast where the Wall meets the Yellow Sea． “It will truly be a life changing adventure．To say that I am excited is an understatement(保守的说法), ” she said at Monday’s press conference in Beijing．She reckons the journey will take her seven months．That time will be divided up into 22 different 10 to 15 day sections on which she will be joined by women from around the world．“Up to now, 250 women from all over the world have enrolled(登记)to join me on different sections”． “The walk is largely in aid of charity, ” Churches said, “for the British charity Breakthrough Breast Cancer and two other Chinese based charities－Plan International(a charity to help women and children living in deprived(缺乏足够食品的)rural areas)and Roots ＆ Shoots which aims to raise awareness of environment and wildlife protection)．” Actress and comedienne(喜剧女演员)Josie Lawrence will join Churches for the first two and a half months and also will rejoin her at the end of the journey for two months．“I never feel I give myself a real challenge．When I am on stage or on TV, I do not feel afraid．But in my normal life, I often find myself afraid．Joining this walk is a way of facing my fears．”Also walking the first section, an 80 kilometer four-day trek(艰苦跋涉), will be three other British women．Erica Jackson, a part time doctor who has recently recovered from breast cancer, says she is taking part in the walk to show that women can completely overcome the disease． “My daughters support me but my husband says I am crazy, ” says Fiona Leslie, a nurse who has also recently overcome breast cancer．“I think it will be great fun．”“I am not that strong, ” says Samantha Pinder．“But I think if I can try this then other people might take on similar challenges．”She says she wants to lead by example． | 
