4．Smoking

　　(forbid) in this office.

　　5．His interest in this subject gradually

　　(decrease)．

　　6．You are throwing

　　your chance of becoming a success.

　　7．The great people are the ones who make

　　difference to the world.

　　8．It isn’t them who use

　　the world’s resources.

　　9．The meeting was postponed

　　account of the chairman’s illness.

　　10．To be good care of every tree and bush，bird and mammal，be in harmony

　　nature.

　　Ⅰ.完形填空

　　Visitors to the dry，hot Sonoran Desert of the Southern Arizona and Northern Mexico are amazed at the many­armed giants.They are the saguaro cacti(树形仙人掌)，a giant which gives the landscape its

　　1

　　appearance.In the dry desert the saguaro cacti can live for more than 200 years，grow to a

　　2

　　of 20 feet，and have as many as 10 arms.

　　More

　　3

　　，the saguaro cacti still persist despite the unbearable desert climate.Those that have grown to old age have

　　4

　　droughts，freeze，flash floods，and bush fires as well as the

　　5

　　caused by groups of rats that eat their seedlings(幼苗)．Like all other desert

【【加练半小时】2017届高考英语一轮复习练习：第17练 自然与环保类（三）（含解析）】相关文章：

★ 【北京专用】2014届高考英语一轮复习方案课时作业：选修8 Unit 2 Cloning

★ 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）

★ （安徽专用）2014届高考英语一轮复习方案 作业手册（4）模块2 《Unit 4 Cyberspac》（含解析） 北师大版必修1

★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (75)

★ 山东省济宁市2016年高考英语复习：条件状语从句（含解析）

★ 四川省2016届高考英语一轮复习课时作业（35） Module 5 Cloning 外研版选修6

★ 2017高考四川省广安市英语阅读理解一轮系列训练：26（含解析）

★ 【课堂新坐标】2017届高考英语（通用版）二轮复习书面表达专题训练：技法3 丰富充实的细节信息（含解析）

★ 【人教版】2014届高考英语一轮复习指导考点针对练：必修4 unit5《Theme parks》

★ 【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10组（含解析）