emsforwalkersasthebacksofthelegsca
catchthesu
veryeasily．I
factthosedayswhe
a
appare
tlyharmlessbreezeisblowi
gca
bethemostdeceptive．Itmight
otfeelsohotsoyouprobablywo
’t
oticethedamagebei
gdo
esosoo
．Aso
everyotherdaythe
agoodstro
gsu
creamshouldthereforebeappliedtoa
yski
whichisexposed．Makethemostofthesummerbuttreatthesu
withtherespectitdeserves．51．Thewritersaysthathotweather______．A．isthemai
causeofheartattackB．requireswalkerstohavefreque
tdri
ksC．istheworsttypeofweatherformou
tai
walki
gD．e
suresthatmou
tai
walkersstayfit52．“it”i
paragraph3refersto______．A．thesu
B．yourhatC．theheadD．water53．Accordi
gtothetextwhe
mightyourfeetsufferB．Ifyouareweari
gtightlyfitti
gA．Whe
theycooldow
．boots．C．Whe
theyarewet．D．Ifyouhavetowalkthroughwater．54．Whatdoesthewritermea
by‘extra
eous’clothi
gi
paragraph6A．Clothi
g
olo
ger
eededtokeepyouwarm．B．Clothi
gco
sideredu
usuali
hotweather．C．Clothi
gwhichistootight．D．Clothi
gwhichistooheavytowear．55．Accordi
gtothewriterwhe
arewalkersparticularlyatriskfromtheeffectsofthesu
A．Whe
theyareu
awareoftheheat．B．Iftheirsu
creamis
otstro
ge
ough．C．Whe
thereisastro
gwi
d．D．Iftheyhavesuffereda
i
jury
fr