Unit 23 Conflict
Ⅰ.阅读理解
A
It is a tall tale that terrifies most young children. Swallow a piece of chewing gum and it will
remain in your body for seven years before it is digested. An even worse tale is that swallowed
gum can wrap itself around your heart.
But what does happen if you should accidentally eat a stick of gum? Chewing gum is made
out of gum base, sweeteners, coloring and flavoring. The gum base is pretty indigestible—it is a
mixture of different ingredients (成分) that our body can't absorb.
Most of the time, your stomach really cannot break down the gum the way it would break
down other foods. However, your digestive system has another way to deal with things you
swallow. After all, we eat lots of things that we are unable to fully digest. They keep moving
along until they make it all the way through the gut (肠子) and come out at the other end one or
two days later.
The saliva (唾液) in our mouths will make an attempt at digesting chewing gum as soon as
we put it in our mouths. It might get through the shell but many of gum's base ingredients are
indigestible. It's then down to our stomach muscles—which contract and relax, much like the
【2017届高考英语一轮单元复习阅读理解训练:Unit 23《Conflict》(北师大版含解析)】相关文章:
★ 【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》
★ 重庆市2014高考英语阅读理解一轮(精品)训练题(19)附答案
★ 四川省2016届高考英语一轮复习课时作业(31) Module1 Small Talk 外研版选修6
★ 重庆市2014高考英语阅读理解一轮(精品)训练题(2)附答案
★ 【北师大版】2014届高考英语一轮复习指导课时作业:Unit 6 A卷 Word版含解析
★ 贵州省贵阳市2014高考英语(新人教版)一轮阅读训练(25)附答案
★ 【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:训练4 书信、邮件+议论文(Ⅱ)(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
最新
2017-04-24
2017-04-24
2017-04-24
2017-04-24
2017-04-21
2017-04-21