oyouk
owthetearshelpkeepyoureyeshealthy？Theykeepyoureyesfromdryi
gout．Aspecialareaoftheeyedrips（滴）allthetime．Itkeepstheeyehumid．
第2页（共66页）
）
fIfyoulooki
amirror，youca
seeti
yholesi
thecor
ersofyoureyes．Eachholeleadstoasmalltubethatru
stoyour
ose．Tearsru
slowlyi
tothistubedripbydrip．Daya
d
ighttheholesdrai
（流走）thetearsaway．Iftheydid
t，youwouldalwayslookasifyouwerecryi
g．Ifyoubegi
tocry，therearema
ymoretears．Theholesca
tdrai
allofthem．The
extratearsru
outo
toyourface．Tearshelpkeepeyessafe．Ifthereissomethi
gharmfuli
theair，theeyesfillwithtears．Thesetearscoatyoureyes．Theykeeptheharmfulairout．Co
tactle
ses（隐形眼镜）ca
maketheeyestoodry．Somepeoplehavetoaddtearstotheireyes．Theybuybottlesofeyedropstokeeptheireyeswet．（1）Eyesmaketears
omatterhowpeoplefeel．（2）Whe
youcry，tearsru
i
toyour
oseoro
toyourface．（3）Ifthereissomethi
gharmfuli
theair，tearsprotectyoureyesbycoveri
gthem．（4）Co
tactle
sesmakeyouhavemoretearsi
youreyes．（5）Tearsareharmfultoyoureyes．
17．（5分）（2018青岛）Livi
gplacesThehomeoftheelepha
tisi
thedeepforest．Itisthelargestofallla
da
imals，a
disfou
dbothi
Asiaa
dAfrica．O
eofthemai
placesi
Asiawheretheelepha
tlivesistheisla
dofCeylo
．Thehugeforestso
theisla
dbecomethehomeofthousa
dsofelepha
ts．Thetreesgrowthicka
dtall．Theymakema
ypartsalmostdark，whilebrightsu
lightisabovea
darou
dthem．Livi
ghabitsTheelepha
tlikesthedeepparta
dthecoolestplacesoftheforest．Therehe
第3页（共66页）
fwillsta
dswi
gi
ghisears，todriveawaytheflies；orhewillpulldow
abra
ch（树枝）fromatreetofa
himself．Helikesbathi
g，a
dtobe
earalakeorru
i
gwater．Therehetakesi
thewaterwithhistru
k，a
dspreadsitalloverhisbody．FoodTheelepha
te
joysthefruitsi
theforest，a
dalsotheleavesofthetrees．Thereisple
tyoffoodforhimi
theforests，thoughheis
otalwayshappywithwhathefi
dsthere．Wayofmoveme
tWhe
agroupofelepha
tsmovesabouti
theforest，theoldestgoesfirst．Theyou
gelepha
tsa
dtheirmothersarei
themiddle，wheretheyaresafest．The
allmovealo
gwithagreat
oise，thebra
chesofthetreesbe
di
ga
dbreaki
gbeforethem．Thoughtheelepha
tisusuallyharmless，
oo
edarestoattack（袭击）agroupofthemmovi
gthroughtheforest．HowpeopletreatthemI
Asiatheelepha
tistrai
edtowork．Ato
etimetheAfrica
elepha
talsowastrai
ed．Soldiersi
a
cie
ttimesofte
we
ttofighto
thebacksofAfrica
elepha
ts．But
owtheelepha
tthatlir