知，Sam帮助警察破案的动机是出于兴趣和爱好。4D推理判断题。作者在本文第二、三、四、五段分析了网上志愿者无偿帮助陌生人的四个主要原因，由此可知答案。
A2
Attimesmymomhasbee
u
comfortableseei
gthesequalitiesi
meForexample，whe
Iwas12，Iwe
ttoPuertoRicoallbymyselftostaywithmygra
dmotherforthesummerMymomwasextremely
ervousaboutitShekepttelli
gmehowthi
gswerediffere
ti
PuertoRico，toalwaysputo
su
scree
，
ottowa
derawayfrommygra
dmother，a
dotherwar
i
gsShehelpedmepacka
ddid
otleavetheairportu
tilshesawmypla
etakeoffButdespiteherworries，sheletmegoo
myow
AsImovedi
tomytee
s，sheco
ti
uedtogivemespacetogrowa
dlear
，eve
whe
itmighthavebee
difficultforherWhe
Ireachedmyse
ioryear，IdecidedtomoveawayforcollegeO
ceagai
Ifou
dthatIdifferedfrommypeers：Whilema
yofthemwa
tedtostayclosetohome，Icould
’twaittobeouti
theworldo
myow
Whilemymommay
othavebee
happyatthethoughtofmygoi
gaway，shewassupportivea
dexcitedformeO
ebigthi
gIrealizedduri
gmyse
ioryear，asmymomgra
tedmemorefreedom，wasthatsheactuallybelievesi
mea
dtrustsmeThatmea
salotMostofmylife，a
despeciallywhe
Iwaslittle，themai
perso
Itriedtoimpressi
myschoolworkorotherthi
gswasmymotherIk
ewsheexpected
othi
gbutthebestfromme
第2页共5页
fSometimesitwashardtoliveuptohersta
dardsgetti
gasi
gleBo
myreportcardwouldmakemefeelbadbecauseIk
ewshewa
tedmetohaveallA’sIk
owthatherhighsta
dardshavehelpedmestayfocusedo
what’simporta
t，likeeducatio
，a
dmademewhoIamIamtha
kfulforhersupporta
di
volveme
ti
mylifeMostofallIrespectherSheisthestro
gestwoma
Ik
owa
dthat’swhyIhavetur
edoutsostro
ga
di
depe
de
t5Whe
theauthordecidedtogotoPuertoRico，hismother________A．wa
tedtogowithhimB．worriedabouthissafetyC．did
’tallowhimtodosoD．askedhisgra
dmotherforadvice6WhydidtheauthordecidetomoveawayforcollegeA．Hewa
tedtobediffere
tfromhispeersB．Hepla
edtokeepawayfromhismotherC．Hei
te
dedtomakehismotheru
happyD．Hewa
tedtobei
depe
de
ti
theoutsideworld7Weca
lear
fromParagraph3thattheauthor’smother________A．wastoostrictwithhimB．caredlittleabouthislear
i
gC．hadahighexpectatio
ofhimD．usedtoexpect
othi
gfromhim8Whatdoestheauthormai
lywa
ttotellusi
thetextA．Hismother’sdeeploveforhimB．Hislo
gwaytobecomei
depe
de
tC．Hisgoodrelatio
shipwithhismotherD．Theimporta
ceofhismother’strusta
dsupport【答案】5B6D7A8D【解析】5B细节理解题。根据第一段中的“Mymomwasextremely
ervr