Speaking of elephants，we think of their long tusks（长牙）.However，the tusks may make the animal in（1）

B

B

.Some people kill the elephants for their tusks.And some make elephants' tusks into expensive things.They sell them to（2）

A

A

people.
   But can these priceless（ 无价的） body parts（3）

C

C

back？The answer is no.The elephants' tusks are in fact part of their teeth.Nearly all African（4）

A

A

and most Asian elephants have these long teeth.The tusk has a nerve （神经） running down its centre.This makes it just like your teeth.After you grow up，once you（5）

D

D

a tooth，you will never grow a new one.
   Elephants use their tusks to（6）

B

B

themselves，lift things，get water and food.But losing the tusks will not kill jye.aim.The way in which they lose tusks is what matters（ 要紧）.Usually people get tusks by culling（选择性宰杀）.That means killing（7）

D

D

and weak（虚弱的） elephants.They also lake tusks from the dead elephants.
   （8）

D

D

，some people kill healthy elephants and cut their faces open to get the tusks.We're（9）

C

C

to hear that about 30，000 elephants are killed each year.We must do something to（10）

C

C

the situation.

（1）A.peace	B.danger	C.order	D.power
（2）A.rich	B.polite	C.rude	D.poor
（3）A.move	B.turn	C.grow	D.call
（4）A.elephants	B.giraffes	C.monkeys	D.tigers
（5）A.find	B.clean	C.forget	D.lose
（6）A.kill	B.protect	C.raise	D.hurt
（7）A.healthy	B.strong	C.young	D.old
（8）A.Usually	B.Finally	C.Luckily	D.However
（9）A.brave	B.interested	C.sad	D.pleased
（10）A.develop	B.allow	C.change	D.produce