三短语
lookbacko

aheadof
atthatpoi
t
arushtogrowup
fixproblems
assistsbwithsth
simplifyourlives
themotivatio
todosth
guara
teeourhealthe
joyeachother’scompa
y
阅读理解
1A2C3D4B5A6C7A8A9D
11C12C13C14A15B16A17B18C19D
f10B
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Task6
1．belo
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2scie
tificreaso
able3orbit4co
trastcompariso

5gravity6IAU7additio
8seve
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cludi
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