The Xi’an City Wall is the most complete city wall that has survived China’s long history. It
We accessed the wall through the South Gate. The wall is 12 meters high and from here you can see streams of people moving inside and outside the City Wall.
After
We
The iceberg that was for a time the biggest in the world is no more. A68, as it was known, covered an area of nearly 6,000 km2
3 . Rainforests are home to a rich variety of medicinal plants, food, birds and animals. Can you believe that a single bush（灌木丛）in the Amazon may have more species of ants than the whole of Britain! About 480 varieties of trees may be found in just one hectare of rainforest.
Rainforests are the lungs of the planet-storing vast quantities of carbon dioxide and producing a significant amount of the world's oxygen. Rainforests have their own perfect system for ensuring their own survival; the tall trees make a canopy（树冠层）of branches and leaves which protect themselves, smaller plants, and the forest animals from heavy rain, intense dry heat from the sun and strong winds.
Amazingly, the trees grow in such a way that their leaves and branches, although close together, never actually touch those of another tree. Scientists think this is the plants' way to prevent the spread of any tree diseases and make life more difficult for leaf-eating insects like caterpillars. To survive in the forest, animals must climb, jump or fly across the gaps. The ground floor of the forest is not all tangled leaves and bushes, like in films, but is actually fairly clear. It is where dead leaves turn into food for the trees and other forest life.
They are not called rainforests for nothing! Rainforests can generate 75%of their own rain. At least 80 inches of rain a year is normal-and in some areas there may be as much as 430 inches of rain annually. This is real rain-your umbrella may protect you in a shower, but it won't keep you dry if there is a full rainstorm. In just two hours, streams can rise ten to twenty feet. The humidity（湿气）of large rainforests contributes to the formation of rainclouds that may travel to other countries in need of rain.
1. What can we learn about rainforests from the first paragraph?| A．They produce oxygen. | B．They cover a vast area. |
| C．They are well managed. | D．They are rich in wildlife. |
| A．Heavy rains | B．Big trees. |
| C．Small plants. | D．Forest animals. |
| A．For more sunlight. | B．For more growing space. |
| C．For self-protection. | D．For the detection of insects. |
| A．Life-Giving Rainforests | B．The Law of the Jungle |
| C．Animals in the Amazon | D．Weather in Rainforests |
The Royal Library of Alexandria
The Royal Library of Alexandria in Alexandria, Egypt is probably known as the largest and the most famous library in the ancient world. It is said that the ancient library was burned three times over the centuries. A likeness of the ancient library was built in Alexandria and was opened on October 16，2002.
Celsus Library
Celsus Library was built in what had been a monument tomb of the governor of the Province of Asia, Celsus Polemaeanus in Ephesus, Turkey. It used to be the third richest of ancient times in the world，which had more than 12,000 works of art, but it was destroyed in wars, leaving some ruins. Even so, it is now still so world-famous for its beautiful structure that many visitors come to see it. There is a statue of Athena at its entrance as she is the Goddess of Wisdom. It remains delicate and appealing.
Bodleian Library
Bodleian Library is attached to Oxford University and mainly used as a research library. It is also a copyright library, which means it has a right to every book published in the United Kingdom. The library was designed by the architect, Sir Giles Gilbert Scott. Construction was completed in 1940.
The British Library
The British Library was set up in 1973 and is one of the world’s greatest libraries. This library has PACCAR gallery of living and workshop of words. The sounds and images offer shows and different programs at the theme exhibitions. They also have a wide collection of stamps of the world which are on show for visitors. The library also offers events like music and discussions.
1. Which of the following libraries has been reconstructed?| A．The Royal Library of Alexandria. | B．Celsus Library. |
| C．Bodleian Library. | D．The British Library. |
| A．Read books. | B．Borrow books. |
| C．See a stamp exhibition. | D．Enjoy the beautiful remains. |
| A．It belongs to a university. |
| B．It was once destroyed by fires. |
| C．It is one of the famous ancient libraries. |
| D．It is well-known for its beautiful structure. |
