exciteing
relaxing
bore
worrying
pleased
P47
一：Liquidsolidgas
↙↘↙↘↙↘
rainwatericehailwatervaporfog
二：
Theearth
Theuniverse
P48
shadowcanchangeaccordingtothesun.
Inthemorningandatnightfall,itislong.
Inthemiddleoftheday,itisshortanddack.
Howinterestingmyshadowis.
P44
1.Wateristhesurceoflife,withoutfood,wecanliveforseveralw eeks,butthere'snowater,weafewdayslaterwoulddiedehdration.We bodymorethantwothirdsofthepartiswater.
2.Don'tstayqpen,andlefttoturnoffthetap.Washyourhandswith watertoboilsmallpoints.Faceandbrushyourteethtoavoidusingwas hbasinandcaps.