B．The way of spending holidays will be the same as that of today.

　　C．It won't be difficult for people to travel to other planets.

　　D．Our environment will be much more polluted with a growing number of cars.

　　答案　C　[推理判断题。根据第二段的our relationships with people won't be as important as they are today 可知A项不正确；根据第四段的Spending holidays will also be completely different.可知B项不正确；根据第四段的Traveling to other planets or to the moon will be available for everyone.可知C项正确；根据倒数第二段的We will pay more attention to protecting the environment...Therefore，our surroundings as well as health will be in a better condition.可知D项不正确。]

　　8．The underlined word“sanguine”in the last paragraph most probably means “________”．

　　A．disappointed

　　B．surprised

　　C．curious

　　D．optimistic

　　答案　D　[词义猜测题。根据文章最后一句话可以猜测出作者认为我们对未来应该持积极乐观的态度，故选D项。]

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