Camping wild is a wonderful way to experience the natural world and, at its best, it makes little environmental influence. But with increasing numbers of people wanting to escape into the wilderness, it is becoming more and more important to camp unobtrusively(不引人注目地)and leave no mark.
Wild camping is not permitted in many places, particularly in crowded lowland Britain. Wherever you are, find out about organizations responsible for managing wild spaces, and contact them to find out their policy on camping and shelter building. For example, it is fine to camp wild in remote parts of Scotland, but in England you must ask the landowner’s permission, except in national parks.
Camping is about having relaxation, sleeping outdoors, experiencing bad weather, and making do without modern conveniences. A busy, fully-equipped campsite(野营地)seems to go against this, so seek out smaller, more remote places with easy access to open spaces and perhaps beaches. Better still, find a campsite with no road access: walking in makes a real adventure.
Finding the right spot to camp is the first step to guaranteeing a good night’s sleep. Choose a campsite with privacy and minimum influence on others and the environment. Try to use an area where people have obviously camped before rather than creating a new spot. When camping in woodland, avoid standing dead trees, which may fall on a windy night. Avoid animal runs and caves, and possible homes of biting insects. Make sure you have most protection on the windward side. If you make a fire, do so downwind of your shelter. Always consider what influence you might have on the natural world. Avoid damaging plants. A good campsite is found, not made—changing it should be unnecessary.
【小题1】You needn’t ask for permission when camping in         .

Traffic jam and cities, it seems, go hand in hand. Everyone complains about being stuck in traffic; but, like the weather, no one seems to do anything about it. In particular, traffic engineers, transportation planners, and public officials responsible for transportation systems in large cities are frequently criticized for failing to solve traffic jam.

But is traffic jam a sign of failure? Long queues at restaurants or theater box offices are seen as signs of success. Should transportation systems be viewed any differently? I think we should recognize that traffic jam is an unpreventable by-product of successful cities, and view the “traffic problem” in a different light.

Cities exist because they promote social interactions and economic transactions.

Traffic jam occurs where there are lots of people but limited spaces. Culturally and economically successful cities have the worst traffic problems, while decaying cities don’t have much traffic. New York and Los Angeles are America’s most crowded cities. But if you want access to major brokerage houses (经纪行), you will find them easier to reach in crowded New York than in any other large cities. And if your firm needs access to post-production film editors or satellite-guidance engineers, you will reach them more quickly through the crowded freeways of LA than through less crowded roads elsewhere.

Despite traffic jam, a larger number and wider variety of social interactions and economic transactions can be made perfect in large, crowded cities than elsewhere. Seen in this light, traffic jam is an unfortunate consequence of prosperity, not a cause of economic decline and urban decay.

So while we can consider traffic jam as increasing costs on the areas of big cities, the costs of inaccessibility (交通不便) in uncrowded places are almost certainly greater.

There is no doubt that traffic jam brings the terrible economic and environmental damage in places like Bangkok, Jakarta, and Lagos. But mobility is far higher and traffic jam levels are far lower here in the US, even in our most crowded cities. That’s why, for now, we don’t see people and capital streaming out of San Francisco and Chicago, heading for cities like California, and Illinois.

46. We can conclude from the first paragraph that_______.

   A. traffic jam and weather are the two factors preventing the development of the big city

   B. traffic jam seems to be very difficult to deal with

   C. if traffic engineers try their best, traffic jam can be solved

   D. public officials are always criticized for misusing their power

47. According to the passage, what’s the author’s opinion towards traffic jam？_____

   A. In cities, traffic jam is unavoidable.

   B. Traffic jam is both a sign of failure and a sign of success.

   C. Traffic jam is the consequence of successful cities.

   D. For a successful city, traffic jam is not unpreventable.

48. By saying “decaying” (in Para. 4), the writer probably means_______.

   A. declining             B. developing 

C. rich and successful     D. strong and healthy

49. According to this article, which statement about “New York” and “Los Angeles” is true? _____

   A. The traffic jam in the two cities has been worsened.

   B. New York and Los Angeles are the most successful cities in the USA.

   C. It is easier to reach major brokerage houses in the two cities than in other cities.

   D. Despite the traffic jam in LA, you’ll find a satellite-guidance engineer more quickly there.

50. What can we learn from the last paragraph? _______

   A. Traffic jam has caused terrible bad effects in cities such as Bangkok and Lagos.

   B. The traffic jam in San Francisco has resulted in the capital becoming empty.

   C. The traffic jam level in Jakarta is lower than that in the US.

   D. California is as crowded and successful as San Francisco.

From the outer of New York to the heart of Singapore, nature is everywhere you're not looking in some of Earth's most crowded big cities. Outdoor adventure is often just a few stops on the train - or a short drive- away from the annoying crowds.  Here are a few favorites to get you going:

Mount Hollywood Trail, Los Angeles

It's not a skyscraper or a Ferris wheel, and there's no expensive restaurant up top. But if you want an absolutely unforgettable, no-admission-charged, 360-degree view of the entire Los Angeles region , it's yours. All you have to do is walk a little. One of the preferred exercise routes, the Mount Hollywood Trail, is easily accessed from the parking lot of the famous Griffith Observatory; you see what you get at the end of this steep 1.5-mile trail, which winds its way through the Griffith Park wilds up to the mountain's 1,640-foot peak.

Bronx River, New York

It may not be on your Top 10 list of things to do when you finally get to the Big Apple, but exploring the almost-secret river that flows through one of New York's most mysterious boroughs (自治市) is an unforgettable experience. The Bronx River Alliance, a non-profit group that has worked tirelessly to bring the much-abused river back to life , operates cycling and canoeing trips along the river, from the rugged Hunts Point section down near the harbor on up through the borough.

Southern Islands, Singapore

Believe it or not, tightly packed Singapore does have plenty of open space left . There are actual trails right in the middle of everything, if you know where to look . But to really get away from it all, the Southern Islands, a small group of little green dots just off the city-state's southern shoreline, are just the thing.

Lee Valley, London

This East London river valley changed last summer, when anyone near a television got an eyeful of Olympic Park, built directly in the middle of the valley. Inside the park, beautifully landscaped sections quickly became a favorite relaxation spot for games goers. At present, you'll find miles of walking paths worth exploring. Start at the Waltham Cross train and follow the signposted walking route southbound, guiding you past important historic industrial areas, through interesting city neighborhoods, past the western side of Olympic Park and on to the Thames.

1.If someone wants to enjoy an unforgettable experience for free , he can go to ______.

A．Mount Hollywood Trail and Bronx River

B．Mount Hollywood Trail and Southern Islands

C．Lee Valley and Southern Islands

D．Bronx River and Lee Valley

2.The writer of the passage wants to ________.

A．inform the readers that nature exists in crowded big cities

B．appeal to more people to outdoor adventure

C．recommend several historical spots to readers

D．present various approach to outdoor adventure

3.We know from the passage ________.

A．it’s difficult to find a proper trail in packed Singapore

B．the Thames is not far away from the East London river valley

C．The Bronx River Alliance has succeeded in running the river

D．you may have trouble reaching the Mount Hollywood Trail

In crowded places like airports and railway stations, you __________ take care of your luggage.

A. can B. mayC. must  D. will

From the outer of New York to the heart of Singapore, nature is everywhere you're not looking in some of Earth's most crowded big cities. Outdoor adventure is often just a few stops on the train - or a short drive- away from the annoying crowds.  Here are a few favorites to get you going:
Mount Hollywood Trail, Los Angeles
It's not a skyscraper or a Ferris wheel, and there's no expensive restaurant up top. But if you want an absolutely unforgettable, no-admission-charged, 360-degree view of the entire Los Angeles region , it's yours. All you have to do is walk a little. One of the preferred exercise routes, the Mount Hollywood Trail, is easily accessed from the parking lot of the famous Griffith Observatory; you see what you get at the end of this steep 1.5-mile trail, which winds its way through the Griffith Park wilds up to the mountain's 1,640-foot peak.
Bronx River, New York
It may not be on your Top 10 list of things to do when you finally get to the Big Apple, but exploring the almost-secret river that flows through one of New York's most mysterious boroughs (自治市) is an unforgettable experience. The Bronx River Alliance, a non-profit group that has worked tirelessly to bring the much-abused river back to life , operates cycling and canoeing trips along the river, from the rugged Hunts Point section down near the harbor on up through the borough.
Southern Islands, Singapore
Believe it or not, tightly packed Singapore does have plenty of open space left . There are actual trails right in the middle of everything, if you know where to look . But to really get away from it all, the Southern Islands, a small group of little green dots just off the city-state's southern shoreline, are just the thing.
Lee Valley, London
This East London river valley changed last summer, when anyone near a television got an eyeful of Olympic Park, built directly in the middle of the valley. Inside the park, beautifully landscaped sections quickly became a favorite relaxation spot for games goers. At present, you'll find miles of walking paths worth exploring. Start at the Waltham Cross train and follow the signposted walking route southbound, guiding you past important historic industrial areas, through interesting city neighborhoods, past the western side of Olympic Park and on to the Thames.
【小题1】If someone wants to enjoy an unforgettable experience for free , he can go to ______.