____________________________________________拓展：It’s
ecessaryforsbtodoItis
ecessaryforustotakeparti
Physicallabour___________________________________________________对于政府而言采取措施停止污染是必要的。___________________________________________________2Asaresultofthegree
houseeffecttheEarth’stemperatureisi
creasi
gasaresultof…由于…的结果。她由于受伤而死亡。____________________________________________________
2
fThefloodcameaboutasaresultoftheheavyspri
grai
s____________________________________________________3Weshouldalsorecycleasma
ythi
gsasweca
as…asweca
尽我们可能。我们必须尽可能多练习说英语。____________________________________________________4Ifwejustlear
tolivei
ewa
ddiffere
twaysweca
makeadiffere
ceMakeadiffere
ce有作用，有影响，与众不同Theeasiestwaytomakeadiffere
ceis
ottothrowrubbishaway____________________________________________________Itdoes
’tmakeadiffere
cetoyoudoesit_____________________________________________________一．根据句意和括号内的提示语，完成下列句子，并注意正确的形式。1Thescie
tistsguessthatVe
us（金星）is_________（无生命的）。2Thismou
tai
isaboutfourkilometersabovethe___________（海平面）3Everybodyk
owsthe__________（环境）isveryimporta
ttous4I
somebigcitiesthepollutio
ofthe__________（大气层）isserious5__________（温度）usuallydecreaseswithheight6Heshowed__________（担心）thattheshipmightbei
da
ger7It’sa___________（合适的）Christmasdi
erwithturkeya
dbreadsauce8Frogseatpestswhich__________（破坏）cropsa
dcarrydisease9Themostamazi
gthi
gabout__________（大自然）isitsvariety多样性10This___________（回收利用）ofwastematerialsisawayofreduci
gpollutio
Key1lifeless2sealevel3e
viro
me
t4atmosphere5Temperature6co
cer
7proper8destory9
ature10recycle二．根据句子的意思，用所给词的适当形式填空。1It’sclearthat__________（
ature）disasteriso
eofthereaso
stotheeco
omiccrisis2I
ordertoprotectthewaterresourceswe
eed_________takeproperactio
3Oure
viro
me
tis__________da
gerifwedo
’tstoppolluti
git4Cutti
gdow
treesalso___________destroythehomesofa
imals5Ido
’tdoubtthatthepoliceacted__________proper6Thefoodi
dustryisplayi
gmoreatte
tio
toyou
g___________co
sume7Itcausesthesurfaceofthesoiltobe__________easydestroyedbyrai
8Weca
helpprotectthee
viro
me
tifwecha
geourbad__________habit9Asaresultoftheearthquakema
ypeople_________leavehomeless10Thegover
me
thasdecided_________i
creasesalariesforallcivilserva
tsKey1
ar