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高级课程
第07单元第10课时

高级课程» 第7 单元» 第10 课时» 活动中心

 1 Grand Canyon Crowding — Basic Story

The Grand Canyon is running out of empty places. About five million people will visit the Grand Canyon this
year. Most of them will see it from parking lots on the South Rim.
There will be many people in a few small places. There will also be many cars. There will be six thousand cars
a day in the parking lots. That is three times more cars than parking spaces.
The people who run the Grand Canyon Park are trying to do something about the overcrowding. They have put
a limit on boats at the bottom of the canyon. They have put a limit on how low airplanes can fly. Now they want
to get rid of the cars.
The manager of the park says that people will like the park without the cars. They will not have to listen to noise
from buses, motorcycles, and helicopters.
The Grand Canyon Railway wants to put a small train along the South Rim. It would be for people who like
train rides. They could have more time to see the park.
There are many things to do in the Grand Canyon National Park. People do not need cars for all of them. They
can raft down the Colorado River. They can hike on the trails.
The millions of visitors in the South Rim hurt the park. Their showers and toilets take water from the springs
and streams around the canyon. Animals and plants need that water.
There are other dangers to the Grand Canyon. Smog makes it hard to see the views. A dam cools and cleans the
water. This hurts the plants and animals nearby.
The way people visit the National Parks is changing. People may have to make reservations to get into Grand
Canyon. They may have to pay $20 to get in.

 2 dam

a wall built to hold back water

 3 dangers

things that can be harmful

 4 hike

to go on a walk

 5 limit

a place or number where you must stop

 6 manager

a person who is in charge of something

 7 raft

to float on water in a raft

 8 reservation

holding a place for people to visit

 9 smog

dirty air with fog and smoke

 10 view

every thing you can see from one place

 11 visitors

people who come to see something

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