A．secure

　　B．special

　　C．natural

　　D．artificial

　　解析：选C。考查猜测词义。根据waiting to be reached and explored可知是“没有被开垦的，自然的”意思。故选C。

　　2．Which of the following is TRUE about traveling in Australia?

　　A．More travelers make the flying fees among airlines higher than before.

　　B．You can easily rent a car to explore its most beautiful touring routes.

　　C．Taking a bus tour is the most comfortable, economical and efficient way.

　　D．Train services can offer you more comfort than any other means of transport.

　　解析：选B。考查细节理解。根据．..competition among airlines makes great flying fees available for you.可知A错误；Services are frequent, affordable and efficient.而不是Bus travel is efficient.可知C错误；D项文中没有相关的叙述；根据You have no difficulty finding car rental companies at major airports, central city locations, suburbs and attractions.可知选B。

　　3．Ferry service between Melbourne and Tasmania usually runs ________.

　　A．only at night hours

　　B．only during rush hours

　　C．several times a day

　　D．between different cities

　　解析：选A。考查细节理解。根据The Spirit of Tasmania runs a passenger and vehicle ferry service between Melbourne and Tasmania nightly.可知选A。

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