1. 阅读理解

    Climbing Mount Qomolangma, the World's highest mountain, has now become more difficult. The government of Nepal asks climbers to come down the mountain with at least 18 pounds of garbage. That's the average amount of garbage a climber leaves behind on Mount Qomolangma.

    Climbers would leave garbage along the way. This helps climbers keep their bags light, so they would have energy to reach the summit.  The garbage problem in Mount Qomolangma is not new. In 2013, climbers carried down a total of four tons of garbage.

    The new rule came into effect in April of 2014. To make sure it is followed, climbers will have to hand in some money to the officials before they climb the mountain. When they climb back down the mountain, the officials will check them to make sure they bring down the 18 pounds of garbage. If they do, their money will be given back to them.  If not, climbers won't get their money back. Also, the officials won't let these people climb the mountain again.

1. （1） The government of Nepal asks climbers of Mount Qomolangma to       .

   A . take fewer things to the top of the mountain B . bring at least 18 pounds of food with them C . bring down the garbage left by other climbers D . bring down at least 18 pounds of garbage when they come down the mountain
3. （2） Why do climbers leave garbage along the way?

   A . Because they want to leave some food for others. B . Because the garbage can help others find them. C . Because they want to keep their bags light. D . Because the garbage can show them how to come down.
5. （3） How much garbage was brought down Mount Qomolangma in 2013?

   A . 4 tons. B . 8 tons. C . 14 tons. D . 18 tons.
7. （4） Now the climbers have to          before they climb Mount Qomolangma.

   A . hand in some money to the officials B . leave plastic bags behind them C . tell the officials when they will come down D . tell the officials how many bags they will bring