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are about one meter high when they are born. (Section A 3a— 3c) Elephants are usually grey in color and they have a 3. ___________ trunk(象鼻 )with① large ivory tusks protruding(伸出 )from each side of their mouths. For many years, people have used the strength of these powerful animals to move trees and heavy things. (Section A 3a— 3c) 4. ___________, with the scientific development, elephants are in great 5. ___________② nowadays. On the one hand③, people 6. ___________ down trees, so elephants are losing their homes. On the 7. ___________ hand, people also kill elephants for their