Don'tstayopenfaucet,peoplewalkawaytoremembertoturnoffthe tap.Washyourhandswithwater,trytoopenasmalldot,faceandbrushy ourteethcanusebasin.
3.Howtoprotect...
Havegoodhabit,convenientlyclosedwithoutfaucet,don'tlitte randreducefactorysewagedisposal.
P44
1.Whyis.....
Waterwhoisthefountainoflife.Nofood,wecanliveseveralweeks ,butnowater,wedie,webodytwo-thirdsiswater。
2.Howto.....
Don'tstayopenfaucet,peoplewalkawaytoremembertoturnoffthe tap.Washyourhandswithwater,trytoopenasmalldot,faceandbrushy ourteethcanusebasin.
3.Howtoprotect...
Havegoodhabit,convenientlyclosedwithoutfaucet,don'tlitte randreducefactorysewagedisposal.
历史P73
(2)
尼罗河定期泛滥--发达的农业---村落的形成---手工业....----尼罗河两岸的小国....---初步统一的古埃及国家----地跨...
历史P74：
二.1.
(1)图一，古埃及--象形文字，金字塔，太阳历
(2)图二，古印度---佛教，阿拉伯数字