23
. They wear out, and as a result, we get old and
24
die.
Even though we can’t live forever, we are living a
25
life than ever before. In 1900, the average American life span (寿命) was only 47 years, but today it is 75 years!
When does old age begin then? Sixty-five may be out-of-date as the
26
line between middle age and old age. After all, many older people don’t begin to experience physical and mental
27
until after age 75.
People are living longer because more people
28
childhood. Before modern medicine changed the laws of nature, many children died of common childhood
29
. Now that the chances of dying
30
are much lower, the chances of living long are much higher due to better diets and health care.
On the whole, our population is getting older. The
31
in our population will have lasting effects on our social development and our way of life. Some people fear such changes will be for the worse, while some see
32
, not disaster, many men and women in their “golden years” are healthy, still active, and young in
【2017届山西省右玉一中高考英语外研版一轮复习练习:Book 8 Module 1-2(含答案)】相关文章:
★ 2014届高考英语一轮复习课时作业(三十六)选修6Module 6《War and Peace》(外研版)
★ 【北师大版】2014届高考英语一轮复习指导课时作业:Unit 8 A卷 Word版含解析
★ 湖南省岳阳市2014高考英语一轮单项选择训练题(1)及答案
★ 【北师大版】2014届高考英语一轮复习指导课时作业:Unit 10 B卷 Word版含解析
★ 2014高考英语(新人教版)一轮基础训练(18)A、B卷(附答案或解析)
★ 重庆市2014高考英语阅读理解一轮(精品)训练题(12)附答案
★ 2014高考英语(新人教版)一轮基础训练(1)A、B卷(附答案或解析)
★ 2014高考英语(新人教版)一轮基础训练(20)A、B卷(附答案或解析)
★ 山西省永济市涑北中学高三英语总复习:美文欣赏(2)(Love of a Lifetime)
★ 【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15组(含解析)
最新
2017-04-24
2017-04-24
2017-04-24
2017-04-24
2017-04-21
2017-04-21