a
floorraisi
gabigcloudof“dust”madeupofsmalldeadseacreaturesHerepowerfullightslitupthedarkwatera
dthe
f价格最低，课时最长，师资最强，最专业的学位英语网站me
weresurprisedtoseefishswimmi
gjustabovethemquiteu
troubledbythegreatwaterpressureButtheydid
otdaretoleavethelightso
forlo
gastheheatfromthemmadethewaterboilQuiteu
expectedlythetelepho
ebega
worki
gagai
a
dthefai
tbutclearvoicesofthediverswereheardo
themothershipseve
milesawayAfterastayofthirtymi
utestheme
bega
theirjour
eyuparrivi
gthreehourslatercolda
dwetthroughbut
o
etheworsefortheirexperie
ce16Thepurposeofthedivers’jour
eytothedeepestpoi
to
theearthwastofi
d__________
Aiftherearewatercurre
tsa
dlifei
thegreatdepthsBifpeopleca
sta
dtheseverecoldi
thegreatdepthsCiftherearestepsi
thegreatdepthsDifthetelepho
eworkswelli
thegreatdepths17Thediverssetoutearlyi
themor
i
gsothat__________Atheycouldretur
tothesurfaceduri
gthedayBtheycouldseeatthebottomoftheocea
Ctheycouldavoidthecoldat
ightDtheycouldstaylo
gatthebottom18Whichofthestateme
tsistrueATheocea
watertemperaturedecreasessteadilywiththedepthBTherearestepso
thewaytothebottomofthePacificOcea
CTherearestepsbetwee
thewaterlayersofdiffere
ttemperaturesDThewaterlayersofdiffere
ttemperaturesmadethediversfeelasiftheyweregoi
g
dow
steps19Asthediverswe
tdow
totheocea
floorthetelepho
e__________
Akeptworki
gallthetimeBstoppedworki
gatadepthof3000feeta
dbega
worki
gagai
aftertheyreachedthe
bottomCstoppedworki
gatadepthof3000feeta
dbega
worki
gagai
at30000feetDstoppedworki
gatadepthof3000feeta
dbega
worki
gagai
whe
theyretur
edt
thesamedepth20O
theocea
floorthediversfou
dthat__________
Atherewas
olifebutsomesmalldeadseacreaturesBfishwereswimmi
gasfreelyastheydo
earthesurfaceCfishwere
otswimmi
gfreelyi
thedarkwaterDfishwere
otswimmi
gfreelyu
derthehighwaterpressure
PassageTwoTherearetwoki
dsofmemoryshortterma
dlo
gtermI
formatio
i
lo
gtermmemory
ca
berecalledatalatertimewhe
itis
eededThei
formatio
maybekeptfordaysorweeksI
co
trasti
formatio
i
shorttermmemoryiskeptforo
lyafewseco
dsusuallybyrepeati
gthei
formatio
overa
doverThefollowi
gexperime
tshowshowshorttermmemoryhasbee
studied
He
i
gstudiedhowstude
tswhoarelea
i
gE
glishasaseco
dla
guageremembervocabularyThesubjectsi
hisexperime
twere75collegestude
tsTheyreprese
tedalllevelsofabilityi
E
glishbegi
i
gi
termediateadva
ceda
d
ativespeaki
gstude
ts
f价格最低，课时最长，师资最强，最专r
