闪电英语：阅读幽默 1

系例主题一：
Topics About People关于人体的话题
* What is a fart and why does it smell?
* How come tears come out of our eyes when we cry?
* What makes people sneeze?
* Why do my feet smell?
* How much is my body worth?
* Why do we perspire?
* Why do people snore?
* How do we hear?
* How do we smell?
* Why is it that if you tickle yourself it doesn't tickle?
* Why do we yawn?
* Why do we blink our eyes?
* Why do we have eyebrows?
* Why do we laugh?
* How come we have two eyes but only see one of everything?
* Why do we dream?
* Why does hair turn gray?
* What are teeth made of?.
* What causes bad breath?
* What causes headaches?
* What causes an "ice cream headache"?
* Why is blood red?
* Why is some hair curly and some hair straight?
* Why is your middle finger the longest finger?
* Why do we get Goose Bumps when it is cold?
* Why do we get hiccups?
* What is a "Zit"?
* Why don't women have beards?
* What makes people dizzy when they spin?
* What are Tattoos and from Where Did They Originate?
* Why do parts of our bodies"fall asleep”？
系列主题二：
Topics About Insects and Animals关于动物、昆虫的话题
系列主题三
Topics About Customs and Superstitions关于习俗和迷信的话题
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