选择正确的答案:During the day we work and play ,and at night we sleep .Our body r选择正确的答案:During the day we work and play ,and at night we sleep .Our body rests when we sleep .In the moming we are ready to work and play again .Our body grows most when we are asleep .Children who are tired usually need sleep .We can get better at our lessons after having plenty of rest .Boys and girls of eight or nine years old need ten hours of sleep every night .Our body nee

选择正确的答案:During the day we work and play ,and at night we sleep .Our body r
选择正确的答案:
During the day we work and play ,and at night we sleep .Our body rests when we sleep .In the moming we are ready to work and play again .Our body grows most when we are asleep .Children who are tired usually need sleep .We can get better at our lessons after having plenty of rest .Boys and girls of eight or nine years old need ten hours of sleep every night .Our body needs plenty of air when we are asleep .If we do not get enough fresh air ,we will feel tired when we wake up .While in bed we must not cover (覆盖)our head ,our lungs need to get enough fresh air .If we open our windows at night ,we can have plenty of fresh air .Cool air is better than warm air .
()1.Our body grows most while we are( ).
A.eating B.playing C.sleeping
()2.Too little sleep makes us ( ).
A.tired B.hungry C.happy
()3.--- What may cause us to feel tired in the morning
--- ( )during the sleep .
A.Too much air B.Not enough fresh air C.Too much cold air
()4.How many bours of sleep should 9-year-old children have every night?
A.8 hours .B.– hours C.10hours.
()5.What do the lungs need most
A.Fresh air B.Exercise C.Warm air .