Visitors worry that London is an expensive city but there really are so many free things to do here. The following ideas should get you started. All of London's major museums are free, but most offer some special exhibitions for a fee. My favorite is the Museum of Londonwhere you can learn the history of London from Roman times to today. And I love theGeffrye Museumwhich shows English domestic interiors and helps bring to life what it was really like to live in London. I regularly hear people tell me theQueen Mary's Rose Gardens in Regent's Parkis their favorite spot in London, and who am I to argue? I would also recommend St. James's Park as it offers one of the best views ofBuckingham Palace. Hyde Park is enormous and Kensington Gardens nearby includes the ever popular Diana Memorial Playgroundand thePeter Pan Statue. No visit to London is complete without seeing this military tradition. The Queen's Guard in London changes in the Forecourt inside the gates ofBuckingham Palaceat 11.30am every day in the summer and every other day in the winter. Get there early and view the spectacle from outside the front gates. Trafalgar Square is one of Britain's greatest visitor attractions and was designed by John Nash in the 1820s and constructed in the 1830s. This iconic square has many sights to see including Nelson's Columnand theNational Gallery. It is both a tourist attraction and the main focus for political demonstrations. Every December, Norway donates a marvelous Christmas tree, to thank Britain for liberation from the Nazis. The writer wrote the passage to   _  . A) compare some free places in London. B) advertise some free places in London. C) recommend some free places in London. D) expose some free places in London.
C
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Once Lu Xun spoke to the young men about the study of foreign languages. He said: " You must not give up studying foreign languages for even a day. To master a language, words and grammatical rules are not enough. You must do a lot of reading. Take a book and force yourself to read it. At the same time, turn to dictionaries and memorize grammatical rules. After reading a book, it's only natural that you won't understand it all. Never mind. Put it aside, and start another one. In a few months or half a year, go over the first book again; you are sure to understand much more than before ... Young people have good memories. If you memorize a few words every day and keep on reading all the time, in four or five years, you will certainly be able to read works in the foreign language. This passage mainly tells us how to   _ A) do our reading B) turn to dictionaries C) memorize new words D) use grammatical rules
A
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Still waiting for little green men to make contact? _ . A leading astronomer has concluded there probably aren't any aliens out there - meaning we are absolutely alone in the universe. Even though there may be tens of thousands of other distant planets similar in size to Earth, the conditions on them are likely to be too hard to support life-forms such as ET. Dr Howard Smith, a senior astrophysicist at Harvard University, believes there is very little hope of discovering aliens and, even if we did, it would be almost impossible to make contact. So far astronomers have discovered a total of 500 planets in distant solar systems - known as extrasolar systems - although they believe billions of others exist. But Dr Smith points out that many of these planets are either too close to the sun or too far away, meaning their surface temperatures are so bad that they could not support life. Others have unusual orbits which cause vast temperature variations, making it impossible for water to exist - the most important thing for life. Dr Smith said, "We have found that most other planets and solar systems are wildly different from our own. It means it is highly unlikely there are any planets with intelligent life close enough for us to make contact." But his suggestions contradict other leading scientists who have claimed aliens almost certainly exist. Only last month Professor Stephen Hawking said the fact that there are billions of galaxies out there made it reasonable to think there were other life-forms in the universe. Researchers from the University of London have recently suggested that aliens could be living on as many as 40,000 other planets. But Dr Smith said: "Any hope of contact has to be limited to a relatively tiny space around the Earth, reaching maybe 1,250 light years out from our planet, where aliens might be able to pick up our signals or send us their own. But communicating would still take decades or centuries." Researchers from the University of London are mentioned to show that   _  . A) they have better explanations about aliens B) aliens certainly exist on many planets C) they disagree with Dr Smith's suggestion D) aliens can pick up signals from the earth
C
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I am a volunteer. I set out to help clean up the beach after a violent storm a year ago. The sight I saw was heartbreaking. The broken houses seemed to be crying. I couldn't describe how I felt. But something special among the debris   turned my day around. I joined a club to clean up the beach after the storm last November. As I removed the debris from the beach, I noticed an object with shiny buttons in the wet sand. It was a jacket,and I was excited since Halloween  was coming and I thought I had found a great costume . After picking it up, I was able to see that the jacket was from West Point  , the United States Military Academy, and it had the name "deGavre" written inside. I realized the jacket might be important to someone. I decided to find the jacket's owner and return it. I called the West Point Museum, considering that if the family couldn't be found, the jacket should go there. The museum connected me with Kim McDermott, Director of Communications for the Academy's Association of Graduates. Kim soon ensured that the jacket had belonged to Chester Braddock deGavre, who was a 1933 graduate and a war hero, but passed away in 1993. I sent Kim a photo of the jacket and she posted it to the West Point Association of Graduates Facebook Page, asking if anyone could help us find the family. In less than two hours, someone had found and called the hero's wife, Teresa. Soon I started to receive personal messages from members of the deGavre family, their friends and others who were touched by the story and they found me on Facebook. Finding Chester deGavre's jacket and connecting to his family with the help of Facebook have been so meaningful to me. I've formed a bond  with amazing people I might have never met. The author called the West Point Museum because he thought   _  . A) the jacket was made there B) the jacket's owner worked there C) the workers there needed the jacket D) the jacket might be collected by the museum

D
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