短文填空 先通读下面的短文，然后根据短文内容和所给首字母，在空格内填入一个适当的单词，使短文意思完整。所填单词必须在答题卡标有题号的横线上完整写出。（本大题共10空，每空0.5分，共5分）
　In many countries, people t__________ by car or by bike. They also get from place to place using p__________transport such as buses and trains. However, some people live in parts of the world where it is i__________ to build roads. In these places, animals or other forms of transport have to be used.
　　It is difficult to w__________ in snow but easy to ski over it. So in places like Alaska, people use skis. If they want to go faster, they get dogs to p__________ them on sleds(雪橇). Riding a snowmobile(雪地摩托) is a more m__________, but expensive way of getting around on snow.
　　In desert(沙漠) like the Sahara in North Africa, people s__________ get around on camels. Camels survive w_________ in the desert, not because they can s_________water in their bodies though! They can survive without water for two weeks and without f__________for up to a month. He can only go without water for about three to five days.