Human waste left by climbers on Mount Everest has become a problem that is causing pollution and threatening to spread disease on the world's highest peak.

The more than 700 climbers and guides who spend nearly two months on Everest's slopes each climbing season leave large amounts of waste. Climbers need to handle the waste properly so the mountain keeps pure. Last year, the Nepali government made a new rule to persuade climbers to clean up after themselves on the mountain.

Nepali officials now check that each climber leaves the mountain with about 18 pounds of rubbish.

More than 4,000 climbers have reached the 8,850-meter or 29,035-foot peak since 1953, when it was first conquered by New Zealand climber Edmund Hillary and his Sherpa guide Tenzing Norgay. Hundreds of others have died in the attempt, while many have succeeded.

Hundreds of foreign climbers attempt to conquer Everest during Nepal's climbing season, which began this week and runs through May. Last year's season was canceled after 16 local guides were killed in a snowstorm in April.

1.What does “human” refer to in paragraph 1?

A All the people in the world.

B People who live in Nepal.

C People who come to visit climbers on Mount Everest.

D Climbers and guides on Mount Everest.

解析：选D。D 判断推理题。珠峰因其危险与世界第一高峰的特点，并不是所有的人都可以轻易攀登，故此处human应为登山者与向导，故选D。

2.What does Mount Everest mean in Chinese?

A 喜马拉雅山.

B 珠穆朗玛峰.

C 乔戈里峰.

D 阿尔卑斯山.

解析：选B。B 语义推测题。由第1段最后world's highest peak可知是指珠穆朗玛峰，故选B。

3.How much waste does each climber leave on the mountain?

A Two kilos.

B Eight pounds.

C Eighteen pounds.

D Eight kilos.

解析：选C。C 细节理解题。根据第3段…each climber leaves the mountain with about 18 pounds of rubbish.可知，故选C。

4.Who first got to the top of Mount Everest?

A Edmund Hillary.

B Tenzing Norgay.

C Sherpa.

D Edmund Hillary and Tenzing Norgay.

解析：选D。D 细节理解题。根据第4段it was first conquered by New Zealand climber Edmund Hillary and his Sherpa guide Tenzing Norgay.可知，故选D。

5.Which statement is RIGHT according to the passage?

A Only climbers leave their waste on the mountain.

B The first one who got to the top of Mount Everest was from the USA.

C It’s easy to get to the top without guides.

D It’s very dangerous to climb Mount Everest.

解析：选D。D 内容理解题。由文中内容可知几百名登山者死亡，在去年有16名向导死于雪崩，可见攀登珠峰非常危险，故选D。