Unit 2

B) To campaign against the use of elephants.

C) To pop the champagne corks and rejoice.

D) To stop using performing elephants.

答案:D

B) He said that the last 13 elephants would be retired to the conservation centre by 2018.

C) He said that he was telling the truth.

D) He admitted that elephants were treated badly.

B) That some diseases have mutated.

C) That about 70 percent of the new diseases come from animals.

D) That the population and food-supply chains grow.

B) More natural resources will disappear.

C) Healthcare services would improve in poor areas.

D) There will be more threats to human health into the food chain.

B) People think the 1989 ban invalid.

C) Cross-border smuggling of ivory still continues.

D) It is hard to estimate how many elephants are killed.

B) Destroy the existing stockpiles and make the ivory more expensive.

C) Protest against the practice and call for a ban.

D) Set up conservation zones.

B) About 500.

C) About 600.

D) About 700.

B) 3.

C) 4.

D) 5.

B) Habitat loss.

C) The demand for traditional medicine containing tiger bone.

D) The loss of their prey.

B) Elephant.

C) Zebra.

D) Rhinoceros.

B) Horses.

C) Chickens.

D) Sheep.

B) A filly.

C) A calf.

D) A lamb.

B) 3 days old.

C) 4 days old.

D) 5 days old.

B) 6 months old.

C) 1 year old.

D) 2 years old.

B) The brown bear.

C) The white bear.

D) The gray bear.

B) Russia.

C) Greenland.

D) Switzerland.

B) 350 to 630 pounds.

C) 330 to 650 pounds.

D) 340 to 650 pounds.

B) A sitcom.

C) A cartoon.

D) A talk show.

B) Warmth.

C) Camaraderie.

D) Love.