[题目译文]

　　作者相信 。

　　[A] 板块的移动与地球内部的移动是一致的

　　[B] 关于板块漂移的地质理论已经被证明是正确的

　　[C] 热区和板块朝着相反的方向缓慢移动

　　[D] 热区的移动证明了大陆正在彼此分开

　　68. That Africa and South America were once joined can be deduced from the fact that _____ .

　　[A] the two continents are still moving in opposite directions

　　[B] they have been found to share certain geological features

　　[C] the African plates has been stable for 30 million years

　　[D] over 100 hot spots are scattered all around the globe

　　[答案] B

　　[解题思路]

　　Africa 和South America的例子对应于文章第二段的第二、三句话“Africa and South America, for example, are moving away from each other as new material is injected into the sea floor between them. The complementary coastlines and certain geological features that seem to span the ocean are reminders of where the two continents were once joined”(以非洲和南美洲为例，由于有新的物质嵌入二者之间的海底，两个大洲之间的距离越来越远。但互相吻合的海岸线和某些似乎跨越海洋的地质特征会使人想到这两个大陆曾经是连成一片的)，因此很容易定位正确答案为B。

　　[题目译文]

　　能够证明非洲和南美洲曾经相连的事实是 。

　　[A] 这两块大陆仍然在朝相反的方向漂移

　　[B] 人们发现它们有某些相同的地质特征

　　[C] 非洲板块已经稳定了3000万年