Salt is something you eat every day, but in parts of ancient A frica, salt builtempires.

Good as Gold. Salt is essential for life.Every person's body contains about 227g ofsalt-enough to fillseveral salt bottles.Salt helps muscles work, and it aids in digesting(消化) food.Salt also preserves food andadds flavor to meals.In hot climates, people needextra salt to replace the salt lost when they sweat. In tropicalA frica, salt has alwaysbeen precious.

Salt is abundant in the Sahara and scarce in the forests south of the Sahara (inpresent-day countries suchas Ghana and Cote d'Ivoire).These conditions gave rise to A

frica's salt trade.Beginning in the A.D.300s, localpeople drove camels carrying Europeangoods and weapons from Mediterranean ports into the Sahara.At thedesert's great salt

deposits they traded European goods for salt.

Rise and Decline.Camels arrived in Africa from Asia in A.D.300.In time,commercialteams ofthousands of camels loaded with tons of salt arrived at southern markets.Localkings along the trade routes puttaxes, which were payable in gold, on all goods

crossing their empires.The ancient empires of Mali and Ghanarose to great power fromwealth brought by the salt trade.

Trade routes also provided ways for spreading ideas and inventions.By theA.D.800s ,Arab tradersbrought to Africa n systcm of weights and mcasures, a writtcnlanguagc,and the conccpt of moncy.Althoughsalt no longer dominates trade, it is usedas a seasoning throughout the world.

1. Why is salt csscntial?

A. lt is becoming more scarce.

B. It is important to human beings.

C.It improves working performance.

D.It reduces sweating in hot climate.

2. Which part of Africa is rich in salt?

A.Ghana.

B.South of the Sahara.

c.South of Ghana.

D.The sahara.

3.How did the salt trade affect the countries along the trade routes?

A.They began to launch more wars.B.They became richer and stronger.

C.They reduced the prices of salt in their lands.D.They stopped goods from crossing their lands.

4.What did Arab traders bring to A frica together with the goods?A.Their laws.

B.Their homes.C.Their culture.

D.Their agriculture.

5. What could be the best title of the passage?A. Salt in Daily Life

B.Africa's salt Trade

C.The Rise and Fall of Salt IndustryD.The History of Europe-Africa Trade

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