Ⅲ.阅读理解
What makes you fall asleep?The main cause is your body clock,a time-keeper in-
side your body.But how to control and use your body clock?Scientists suggested having
a shower before bed.Jumping into the shower around an hour before bed could mean you
sleep better.
A warm shower helps you relax,and then after it warms you up,your core(核心)
body temperature drops.This encourages you to fall asleep more quickly and sleep more
soundly.
A study in 2019 said that a water tempe era tur re of 40℃ to 42.4℃ produces the best-
quality(最优质的)sleep.After people lie down,most of them take about 20 minutes to
fall asleep.However,if you have a shower one to two hours before going to bed,you will
fall asleep 10 minutes earlier.
Core body temperature drops naturally before you sleep,then drops further during
the night.It rises again as you wake up.It is thought that taking a warm shower will
speed up the drop in temperature before bed,as it brings blood to the surface of the
body,and then the heat is given off.
1.What did scientists suggest people do before bed to sleep better?
A.Sleep an hour earlier.
B.Jump into bed.
C.Have a warm shower.
D.Set a time clock.
2.What does the underlined word “ soundly ” probably mean?
A.Deeply..
B.Poorly..
C.Kindly.
D.Slowly.
3.Which water temperature produces the best-quality sleep according to the study?
A.44.2°℃.
B.41.5℃.
C.36.4℃.
D.32.4°C.
4.In which part of a newspaper can you find the text?
A.Art.
B.Weather.
C.History.
D.Health.

1.C 2.A 3.B 4.D