If you are ever planning to buy a telescope and want to get yourself involved in astronomy it is always a good idea to know a bit of the sky.Get acquainted with a few constellations(星座) so that it will be easier for you to spot the constellations when you are using your telescope.

It’s a good idea to buy a few magazines on astronomy to help you to get familiar with the constellations in the sky and also read a few reviews on the different types of telescopes in the market.This will help you gather all the information that is out there regarding telescopes and what people have to say about them.

It’s advisable to go in for a pair of binoculars(双筒望远镜) before you buy your first telescope so that you can get used to spotting constellations before your view of the sky is narrowed down.This will also help you know if you really want to get involved in astronomy.Many people buy a costly telescope and then discover that they’re not actually interested in astronomy.

Experience has no substitute，and there certainly is nothing better than using different telescopes before you buy one.This will help you to get the feel of all the types of telescopes and you will know which one is easier for you to use.A large aperture(光圈) refractor(折射) may give you an excellent image but you may not be able to keep a steady hand while using it resulting in a blurry image.

There are three types of telescopes that are available in the market.If you want a more elegant looking telescope you can always choose to buy a fine brass telescope.It’s good to become acquainted with each type before going for the plunge of a first telescope.The first type of telescope is the refractor telescope，which uses lenses to gather light to a focus at the eye piece.The use of lenses helps the telescope have a superior image.A refracting telescope is not as portable as the other two types of telescopes and so you will have to buy one with a small aperture.

The second type of telescope is the Reflector.Made by Sir Isaac Newton，this telescope functions by focusing the light back at the front of the tube，which is where the eyepiece sits，by using parabolic(抛物线的) mirrors and another smaller mirror to deflect the light.There is no added color in the image caused by refraction of light since this telescope does not use lenses.These are the cheapest of all telescopes and are more portable than refractors.

1.According to the text，a telescope is intended to be bought for ________.

A．getting experience

B．watching stars

C．studying the climate

D．learning about a bit of the sky

2.What can we learn from Paragraph 2?

A．One must know something about astronomy and telescopes.

B．One can’t buy a telescope without buying several astronomy magazines.

C．One should check the telescopes in the market and try to find a better one.

D．One must be familiar with new information of astronomy and space instruments.

3.Why does the author advise buying a pair of binoculars first?

A．The telescope is too expensive.

B．The binoculars are easier to use.

C．You may gain plenty of experience in astronomy.

D．Your view will be narrow by using a pair of binoculars.

4.What do we know about the refracting telescope?

A．It looks very elegant.

B．It refracts light by an eye piece.

C．It has clear images without any lenses.

D．It is not convenient to take along for its size.

6-Day Trek（艰苦跋涉）in the Highland National Parks

Destinations: Saigon—Cat Tien National Park—Buon Ma Thuot—Lak Lake—YokDon National Park

Estimated trekking time: Average 4-5 hours／day

Summary: This trip is ideal for those who love trekking in natural forests. From the southern part of Vietnam up to the central highlands, you will cross through two national parks. There will be opportunities to see wildlife and challenge yourself physically at a moderate（中等的）level.

    Indulge yourself in the beauty of nature, escape from the hustle and bustle of the city, rediscover yourself in the natural world and refresh both mind and body.

Highlights:

·Private tour

·Walk through the forest to a fascinating and beautiful wetland area. If you are lucky, you may be able to see many different kinds of animals using only binoculars（双筒望远镜）.

·Night time wildlife-spotting excursion（远足）

·Elephant riding

Includes:

·Travel insurance

·Private transportation

·English-speaking guide

·Guest house-twin shared room

·Meals as indicated in the itinerary

·Elephants

·Canoe

·Mineral water

·Entrance fees & all permits

Excludes:

·Surcharges for other guides in other languages, festival season and peak season surcharges, which will be advised at time of booking

·Visa

·Gong show（80 USD／show）

·Tips

·Personal expenses

1.During the tour, visitors will trek through     national parks.

    A. 2    B. 3    C. 4    D. 5

2.In the forest, tourists will be able to     .

A. ride elephants          

B. have barbeques with natives

C. play with wild animals  

D. race in canoes

3.Visitors may have to pay extra fees for     .

    A. permits          B. a Gong show

    C. meals and water D. an English-speaking guide

4.This advertisement is especially targeting visitors          .

A. from other countries   

B. who love wildlife

C. who enjoy country life  

D. interested in hiking in forests

Equipped only with a pair of binoculars(双筒望远镜) and ready to spend long hours waiting in all weathers for a precious glance of a rare bullfinch(红腹灰雀). Britain’s birdwatchers had long been supposed to be lovers of a minority sport. But new figures show birdwatching is fast becoming a popular pastime, with almost three million of us absorbed in our fluttering feathered friends.

Devoted birdwatchers, those prepared to travel thousands of miles for a sighting of a rare Siberian bird are fast being joined by a new breed of follower whose interest is satiated by watching a few finches(雀科鸣鸟) on a Sunday walk or putting up a bird-box in the back garden.

“Almost three million UK birdwatchers is certainly possible if you include everyone with only a casual interest.” Stephen Moss said in his newly published book－A Bird in the Bush a Social History of Birdwatching－which records the pursuit from the rich Victorian Englishman’s love of shooting rare birds to the less offensive observational tendencies of birdwatchers today.

Television wildlife programmes have helped to fuel the new trend . Last summer ,BBC 2’s Britain Goes Wild was a surprise success .It pulled in three million viewers and led to bird-houses selling out across the UK as 45,000 people promised to put up a box.

       Birdwatchers’ networking system first came to the attention of the nation in 1989, when a birdwatcher caught sight of the first Vermivora chrysoptera-a golden winged songbird from North America－to be seen in Britain. He put a message our on the network service Birdline, and the next day 3,000 birdwatchers proved the fell pull of a truly rare bird as they visited the Tesco car park in Kent, where it had settled. Today, birdwatchers can log on to www.birdline.co.uk or have news of the latest sightings texted to their phones.

“Multimillion-pound spending on, binoculars, bird food and boxes point to the increasing numbers of birdwatchers,” said David Cromack, the editor of Bird Watching magazine “The number of people involved is so big that they have great potential to influence government decisions affecting the environment.”

76．The word “satiated” in paragraph 2 can best be replaced by “          ”.

       A．affected              B．shared                 C．satisfied              D．narrowed

77．What happened after the message of seeing a Vermivora chrysoptera was put on the network?

       A．Birdwatchers helped the rare bird settle in Kent.

       B．Large numbers of birdwatchers went to view the bird.

       C．Many birdwatchers logged on to the website for details.

       D．Birdwatchers showed their determination to protect the rare bird.

78．Which of the following CANNOT be true according to the passage?

       A．Television wildlife programmes started the popular pastime of birdwatching.

       B．The network service has contributed to the rapid development of birdwatching.

       C．Birdwatching in Britain was long considered a sport with a small group of followers.

       D．The current situation of birdwatching may promote the protection of the environment.

79．The passage mainly tells us about ___________ in UK.

       A．the history of birdwatchig                     B．a growing passion for birdwatching

       C．the impact of media on birdwatching     D．birdwatcing as a popular expensive sport

6-Day Trek (艰苦跋涉) in the Highland National Parks

Destinations: Saigon—Cat Tien National Park—Buon Ma Thuot—Lak Lake—YokDon National Park

Estimated trekking time: Average 4-5 hours／day

Summary: This trip is ideal for those who love trekking in natural forests. From the southern part of Vietnam up to the central highlands, you will cross through two national parks. There will be opportunities to see wildlife and challenge yourself physically at a moderate (中等的) level.

Indulge yourself in the beauty of nature, escape from the hustle and bustle of the city, rediscover yourself in the natural world and refresh both mind and body.

Highlights:

1) Private tour

2) Walk through the forest to a fascinating and beautiful wetland area. If you are lucky, you may be able to see many different kinds of animals using only binoculars (双筒望远镜).

3) Night time wildlife-spotting excursion (远足)

4) Elephant riding

Includes:

1) Travel insurance

2) Private transportation

3) English-speaking guide

4) Guest house-twin shared room

5) Meals as indicated in the itinerary

6) Elephants

7) Canoe

8) Mineral water

9) Entrance fees & all permits

Excludes:

1) Surcharges for other guides in other languages, festival season and peak season surcharges, which will be advised at time of booking

2) Visa

3) Gong show (80 USD／show)

4) Tips

5) Personal expenses

1.During the tour, visitors will trek through _______ national parks.

A．2                B．3                C．4                D．5

2.In the forest, tourists will be able to _______.

A．ride elephants                         B．have barbeques with natives

C．play with wild animals                    D．race in canoes

3.Visitors may have to pay extra fees for _______.

A．permits                               B．a Gong show

C．meals and water                        D．an English-speaking guide

4.This advertisement is especially for visitors _______.

A．from other countries

B．who love wildlife

C．who enjoy country life

D．interested in hiking in forests

6-Day Trek（艰苦跋涉）in the Highland National Parks
Destinations: Saigon —­ Cat Tien National Park —Buon Ma Thuot —Lak Lake — YokDon National Park
Estimated trekking time: Average 4-5 hours／day
Summary: This trip is ideal for those who love trekking in natural forests. From the southern part of Vietnam up to the central highlands, you will cross through two national parks. There will be opportunities to see wildlife and challenge yourself physically at a moderate（中等的）level.
Indulge yourself in the beauty of nature, escape from the hustle and bustle of the city, rediscover yourself in the natural world and refresh both mind and body.
Highlights:
·Private tour
·Walk through the forest to a fascinating and beautiful wetland area. If you are lucky, you may be able to see many different kinds of animals using only binoculars（双筒望远镜）.
·Night time wildlife-spotting excursion（远足）
·Elephant riding
Includes:
·Travel insurance
·Private transportation
·English-speaking guide
·Guest house-twin shared room
·Meals as indicated in the itinerary（旅行日程）
·Elephants
·Canoe
·Mineral water
·Entrance fees & all permits
Excludes:
·Surcharges for other guides in other languages, festival season and peak season surcharges, which will be advised at time of booking
·Visa
·Gong show（80 USD／show）
·Tips
·Personal expenses
【小题1】In the forest, tourists will be able to­­­­______.