DOC《专题三 阅读理解之自然类（5）（新课标）》

s are pretty much the same . D.In order to protect themselves most animals choose not to sleep.

3、(2010・吉林省实验中学最后冲刺) Until the invention of the steam engine, humans travelled the earth on foot.The slow travel meant explorers frequently returned with stories about distant lands: some of them wild tales, some honest descriptions. Barbara Klion, who has retired, knows what that'

like.As a walker who has toured Australia ,Kenya and China on foot ,her trips are the modern edition of an ancient tradition for years.Klion and her husband ,now

75 and

80 years old travelled independently. Walkers know seeing the world on foot gives them a rare experience.Often travelers are attracted by local people and customs.They also get a beautiful and lasting impression of the scenery.Walking tours can be done in one'

s backyard, but there are several destinations around the world that expose travelers to the best of nature and culture What to look for ? A famous guide says the essential of a quality walk are great scenery, tolerable weather ,suitable level of difficulty and something like ecology ,history or culture.These may seem like unclear instructions , but the fun of walking tours is that many things are determined by the traveler. Someone who appreciates hot climates ,wildlife and flat areas could choose a walking tour in Zambia'

s South Luangwa National Park.Travelers who don'

t mind the cold and enjo........