1 . 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.

2. Which of the following contributes most to the survival of rainforests?

A．Heavy rains	B．Big trees.
C．Small plants.	D．Forest animals.

3. Why do the leaves and branches of different trees avoid touching each other?

A．For more sunlight.	B．For more growing space.
C．For self-protection.	D．For the detection of insects.

4. What can be a suitable title for the text?

A．Life-Giving Rainforests	B．The Law of the Jungle
C．Animals in the Amazon	D．Weather in Rainforests

2 . The following are a few places recommended by tourists.

Ka’awaloa Trail

The pathway is steep and continues for about 2 miles each way, so the way there will be a lot easier than the way back. Keep in mind that the loose rocks may present a dangerous situation when slippery, so do carry the appropriate footwear and plenty of water to fight against the intense sun.

Mauna Kea Summit

Most hikers give themselves 8 to 10 hours to finish the journey. Don’t forget to register at the Mauna Kea Visitors Center before setting out, and plan on being back before sunset. The weather here is unpredictable and completely unique to the rest of the island. This area is pure wilderness, and altitude sickness is a definite risk, so researching the hike in advance on the Mauna Kea website is a must.

Waipio Valley Trail

Famed Waipio Valley, the former home of King Kamehameha, shouldn’t be missed by nature lovers. Be sure to catch a glimpse of nearby Hiilawe Falls from here, flowing 1,300 feet at the back of the valley. About 6.5 miles round-trip, this adventure will most likely be too difficult for beginner hikers due to the steep inclines(倾向) and length.

Onomea Bay Trail

Onomea Bay offers two different hikes from the Mamalahoa Highway in Papaikou. The first, the Donkey Trail, follows a stream through the Hawaiian rainforest past a small waterfall and to the ocean. The second, Onomea Trail, goes just to the right of the Hawaii Tropical Botanical Garden and past the Alakahi stream. Many choose to combine the trails or pair the hike with the botanical garden for added adventure.

1. What should tourists be careful about in Ka’awaloa Trail?

A．Burning.

B．Loose rocks.

C．Dry weather.

D．The steep pathway.

2. Why is the visit to the Mauna Kea website in advance?

A．The journey lasts long.	B．There exist many tourists.
C．There’s a potential danger.	D．The weather is unpredictable.

3. What do the last two items（Waipio Valley Trail and Onomea Bay Trail） have in common?

A．They attract plant lovers.	B．Tourists can see waterfalls.
C．Tourists can hike along a stream.	D．They aren’t suitable for beginner hikers.

3 . Some Famous Libraries in the World

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.

2. What can you do in Celsus Library?

A．Read books.	B．Borrow books.
C．See a stamp exhibition.	D．Enjoy the beautiful remains.

3. What is special about Bodleian Library?

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.