For many years，Bruce Bexler dreamed of going where no human had gone before.He wanted to cut a path through unexplored lands and discover rare，exotic species.
   That might sound like an impossible dream，but Bexler turned it into a reality.
   In December 2015，he and a team of Australian and American scientists ventured into an isolated tropical rain forest on the island of New Guinea.They were the first people ever to enter the mist-covered region."As time was limited，we were dropped in by helicopter.Once we were on the ground，there were no trails anywhere；it was really hard to get around，" Bexler says.
   Within minutes of landing，the team spotted a black chicken-like bird with strange orange skin hanging from its neck.The scientists soon determined that the unusual creature was a type of honeyeaters - the first new bird species to be sighted on New Guinea in 60 years.
   The honeyeater wasn't the only surprise for the scientists.They discovered more than 40 previously unknown plant and animal species - 13 birds of paradise，20 frogs，four butterflies，and five palms."
We were like kids in a candy store，" Bexler recalls."Everywhere we looked，we saw amazing things we had never seen before."
   The newfound species didn't shy away from the scientists.Two long-nosed echidnas - primitive egg-laying mammals - let the visitors pick them up and take them back to camp to study them.An echidna looks like a hedgehog and is also called a spiny anteater.
   Bexler thinks the animals weren't scared because they had never seen humans before."In almost all parts of New Guinea，animals are hunted for food，and because of this，they are very cautious of people，" he explains."This area gives scientists a place where they can go to study the behaviours of animals that have not yet learned to be afraid of people."
   Scientists believe the area is probably the largest untouched forest in Asia.Local people called Kwerba hunt and collect plants from the outer-edges of the forest but told Bexler that not even their ancestors had gone so far into the woods.The wooded area is approximately a 10-day walk from the nearest village.
   Bexler and his team did not have enough time during the expedition to study the area completely.They hope to return and expect to record many more undiscovered species."We just scratched the surface，" Bexler says."Anyone who goes there will come back with a mystery."

（1）Which word best describes Bruce Bexler？

A

A

A．Adventurous.
B．Cautious.
C．Optimistic.
D．Careful.
（2）What does Bruce Bexler mean by saying "We were like kids in a candy store"？

B

B

A．They didn't have enough food and were hungry.
B．They were very excited about what they saw.
C．They were misbehaving like naughty children.
D．They knew that if they kept searching，they'd find sugar in the forest.
（3）Why did some of the animals allow the scientists to pick them up？

D

D

A．The scientists seemed to be very friendly.
B．The scientists were skilled in handling animals.
C．The animals had been well-trained by the local people.
D．The animals had no experience or fear of people.
（4）What can we conclude about the area Bruce Bexler explored？

C

C

A．The best way to explore the area is by helicopter.
B．The locals live in the centre of the forest.
C．The area still contains many plants and animals unknown to science.
D．The locals are unwilling to allow the scientists to enter the deep woods.