新托福测试题.docx

文档介绍：阅读
Whatisthemainreasonthatpeopledevelopedmethodsofrefrigeration
A
Theywantedtoimprovetheflavor
○
andnutritionalvalueoffood.
B
They
neededto
slow
the
natural
○
processes
that
cause
food
to
spoil.
C
Theyneededausefortheicethat
○
formedonlakesandrivers.
D
They
wanted
to
expand
the
○
production
ofcertainindustries.
Thewordperishableinparagraph1isclosestinmeaningto
○
A
capableofspoiling
○
B
uncooked
○
C
ofanimalorigin
D
highlynutritious
○
Whatcanbeinferredfromparagraph1
aboutcoldstorage
beforetheinvention
ofartificialrefrigeration
○
A
Itkeptfood
coldforonlyabouta
○
week.
B
It
wasdependent
onasourceof
ice
orsnow.
C
It
required
a
container
madeof
○
metalorwood.
D
It
wasnot
a
safe
method
of
○
preservingmeat.
4.
Artificial
refrigeration
involves
all
ofthefollowingprocessesEXCEPT
○
the
pumpingofwatervaporthrough
A
○
apipe
B
the
rapid
expansion
of
certain
○
gases
the
evaporation
of
a
volatile
C
○
liquid
D
the
transfer
of
heatfrom
oneplace
toanother

5.
Whichsentencebelowbestexpresses
the
essential
information
in
the
highlighted
sentence
in
paragraph
2
Incorrectchoiceschangethemeaningin
importantwaysorleaveoutessential
information.
○
A
It
takes
a
lot
of
energy
to
transformaliquidintoavapor,
especially
whenthe
vapor
loses
○
heat.
B
Somegasesexpandrapidlyandgive