So leap years are years with three hundred sixty－six days，instead of the usual three hundred sixty－five.This extra day is added to the calendar on February twenty－ninth，sometimes known as leap day.People born on leap day may be called “leapings”．They usually celebrate their birthday on February twenty－eight or March first.

　　Title：1.____________

　　Reasons The Earth really takes 356 days,5 hours,48 minutes and 46 seconds to complete its orbit around the sun.

　　2.____________ is needed to benefit people’s daily life and work.

　　3.____________ How to deal with the extra 5 hours,48 minutes and 46 seconds.

　　4.____________ 5.____________ Ways

　　Ancient

　　Greeks

　　and Chinese Producing 6. ___________

　　every 19 years

　　7. ___________Producing an extra

　　day 8.____________

　　The Pop

　　Gregory ⅩⅢ Producing a leap day if the year could be divided 9.____________.No leap day when the year ended in two zeros but could not be divided by 400.

　　Result Leap day 10.____________ and February twenty－ninth was added to the calendar.

　　Ⅵ.阅读简答

　　(2015·岳阳一中高三月考)Elephants and people are in competition for space. In much of Africa, elephants are now put in national parks. Elephants suffered a serious and steady decrease in number in the 1970s.This was the same time when scientists were beginning to learn a great deal about elephants and their behavior. Studies through the 1980s and into the 1990s showed a lot about their sounds and methods of communication.

【2016届高考英语二轮课后检测：9 Unit3 back to the past（牛津译林版）】相关文章：

★ （安徽专用）2014届高考英语一轮复习方案 作业手册（17）模块6 《Unit 17 Laughter》（含解析） 北师大版必修1

★ 四川省2016届高考英语一轮复习课时作业（47） Module 5 The Conquest of the Universe 外研版选修8

★ 【人教版】2014届高考英语一轮复习指导考点针对练：必修4 unit2《Working the land》

★ 【北京专用】2014届高考英语一轮复习方案课时作业：必修5 Unit 1 Great scientists

★ 【北师大版】2014届高考英语一轮复习指导课时作业：Unit 10 A卷 Word版含解析

★ 2017届高考英语二轮复习大题冲关秘籍完形填空之记叙文：命题趋势（含解析）

★ 2017届高考英语二轮复习书面表达限时测验：2（含解析）

★ 2017届高考英语二轮复习课时训练：1（含解析）

★ 2014届高考英语一轮复习选修8参考答案（外研版）

★ （安徽专用）2014届高考英语一轮复习方案 作业手册（14）模块5 《Unit 14 Careers》（含解析） 北师大版必修1