65. What message does the author want to convey in this passage? A) It is of great risk to restrict or prevent global migration.

B) The challenges of climate-driven migration are given more attention to. √

C) Agriculture enjoys greater priority in combating climate change.

D) Weather-related events force men to move from one place to another. 答案：B

解析：在文章的第一句话，作者就指明他要讲述的内容，并且根据文章接下来的内容可以排除其他选项，选出答案为B。

Part IV Translation

Directions： For this part, you are allowed 30 minutes to translate a passage from Chinese into English.

1. 长城是世界历史上最伟大的工程，参与人数之多，延续时间之长，工程难度之大，在世界上无出其右。长城在中国历史上发挥的作用是巨大的。在冷兵器时代，长城在军事防御上起到了不容置疑的作用，尤其在防御北方民族所谓“马背上的进攻”方面，效果是明显的。同时，长城给予民族心理上的安全感，和它的实际军事价值比起来有同样重要的意义。

答案：

The Great Wall is unparalleled in the world in its scale and span of construction, as well as for the great quantities of labor and the degree of difficulty involved. The Great Wall played a significant role in history. It certainly served the purposes of military defense in the age of cold steel, especially in preventing northern peoples on horseback from attacking people in the south who were mostly engaged in farming. Meanwhile, the sense of security provided by the Great Wall to the people is as important as it's actual military value.