The name
an area roughly thesize of the
world.It spans thecontinent from the Atlantic Ocean to the
as 130°F.Thehumidity sometimes gets into the teens.But it can also be as low as 2.5percent,the lowest in
the world.Most ofthe
no rainfall at allfor years.
At the heart of theSahara is the landlocked north African country of
100 feet tall andseveral miles long. Here sand plains stretch over an area larger than
neither water nortowns.Yet sitting in the midst of the surrounding desert is the town of
are pools of clearwater. Surprisingly,there are groves of date palms.Underground waterresources,or oases,
sufficient tosupport irrigated agriculture are found in dry stream beds anddepressions.Irrigation ditches run
off a creek to waterfields.Corn,cassava,tea,peanuts,hot peppers,and orange,lime,and grapefruittrees grow
in thesefields.Donkeys and goats graze on green grass.
The Sahara of Nigeris still a region where you can see a camel caravan of 500 camels tied togetherin
loose lines as longas a mile,traveling toward such oasis towns.There a caravan will collectlife-sustaining
salt,which is mined fromwatery basins,and transport it up to 400 miles back to settlements on the edgesof
the desert.The roundtrip across the vast sands takes one month.
The Sahara can be described as_______________.
A.a place ofcontrasts
B.a place where noone lives
C.an area where thewinters are cold
D.an area thatappeals to many tourists
[单选题]The SaharaThe name Sahara derives from the Arabic wordfor"desert"or"steppe"
[单选题]The SaharaThe name Sahara derives from the Arabic wordfor"desert"or"steppe"
[单选题]The SaharaThe name Sahara derives from the Arabic word for"desert"or"steppe
[单选题]The SaharaThe name Sahara derives from the Arabic word for"desert"or"steppe
[单选题]The SaharaThe name Sahara derives from the Arabic word for"desert"or"steppe
[单选题]The SaharaThe name Sahara derives from the Arabic word for"desert"or"steppe
[单选题]The SaharaThe name Sahara derives from the Arabic word for"desert"or"steppe
[单选题]The SaharaThe name Sahara derives from the Arabic wordfor"desert"or"steppe"
[单选题]The SaharaThe name Sahara derives from the Arabic wordfor"desert"or"steppe"
[单选题]Across the English ChannelTo swim across the English Channel takes at least