B．abandon

　　C．increase

　　D．lose

　　解析：选D　西南部也将失去这些极具重要性的东西，因此此处选lose。affect “影响”；abandon “遗弃，放弃”；increase “增加”。

　　20．A.signal

　　B．sign

　　C．mark

　　D．symbol

　　解析：选D　这些沙漠巨型植物已经变成了这个干燥区域的标志。根据句意可知，此处选symbol “标志”。signal “信号”；sign “征兆”；mark “记号”。

　　.语法填空

　　(2016·江西九校第二次联考)Would you like to explore (勘探) the oceans? Do you want to find __1__ life than we imagine there? For Jacques Cousteau, the answer was “yes”. His career was a lifelong dream, and he is __2__ (probable) the most famous ocean scientist in recent times.

　　Cousteau was born in France in 1910. Even __3__ a child, he loved water. Cousteau was bright, __4__ he got bored with school and began to cause trouble. His parents sent him to a strict boarding school. There, Cousteau finally __5__ (challenge). He studied hard and did well in all his courses. In 1933, he served as a general officer in the French Navy. He also began to explore the life under the water. He worked __6__ a breathing machine to stay under water longer. It was finished in 1943.

　　In 1948, Cousteau became a captain, and he had new duties. Even so, he continued to explore the oceans. Two years later, he became the president of the French Oceanographic Campaigns. He also bought a ship __7__ (help) with his dives. But he __8__ (need) a way to get money for his trips. To do that, he produced many films and published a number of books. His films include The Silent World (1956) and World Without Sun (1996). One of his books is The Living Sea (1963)．

【2017届高考英语一轮复习教师用书：必修4（外研版）】相关文章：

★ 【外研英语，七省专用】2014《走向高考》英语一轮总复习（2016春出版）第一部分 教师讲义手册：选修七7-2

★ 2014届高考英语一轮复习必修5参考答案（外研版）

★ 2017届高考英语二轮复习大题冲关秘籍语法填空：考纲解读（含解析）

★ 2014高考英语（新人教版）一轮基础训练（14）A、B卷（附答案或解析）

★ 2014届高考英语一轮复习必修2参考答案（外研版）

★ 【外研英语，七省专用】2014《走向高考》英语一轮总复习（2016春出版）第一部分 教师讲义手册：选修七7-6

★ 2017届高考英语一轮复习教师用书：必修3（外研版）

★ 2014届高考英语一轮复习必修1参考答案（外研版）

★ 【优化方案】2017届高考英语二轮复习全国卷Ⅱ题型重组训练：第19组（含解析）

★ 备战2016高考一轮英语复习必须要依托课本