1.Whenyouexercise,youneedwater.A.moreB.lessC.thesame2.Whenyoufreezewater,itbecomeaa.A.liquidB.solidC.gas3.AboutofEarthiscoveredbywater.A.onethirdB.onehalfC.twothirds4.Thescientificsymbolforwateris

Question

1.When you exercise,you need _______ water.
A.more B.less C.the same
2.When you freeze water,it becomea a _______.
A.liquid B.solid C.gas
3.About _____ of Earth is covered by water.
A.one third B.one half C.two thirds
4.The scientific symbol for water is _______.
A.H2o B.HO2 C.H2O2
scientific symbol

Answer 1

常识问题啊
1 A more 当你做运动的时候,你需要饮用（更多）水
2 B solid 当你冻结水的时候,它会变成（固体）
3 C two thirds 地球表面的（三分之二）都被水覆盖
4 A H2O 水的化学符号是（H2O）
其他的我都确定 但是第1个,因为到底运动时是否可以饮水众说不一,所以姑且采用多数人的看法吧.