(Ⅰ)Learning to write after the model
,,WELCOME TO CHINATOWN!
The Chinatown in San Francisco is the biggest in America，and also the oldest.It is a very popular tourist draw that receives more visitors each year than even the Golden Gate Bridge.The climate is mild all year round，meaning it is always a good time to visit.
Historically，Chinese immigrants settled in the area during the railroad construction and gold rush period.What started as a residential area for Chinese immigrants then turned into a centre for Chinese culture.The majority of residents in Chinatown are still ethnic Chinese，many of whom do not speak English fluently.This allows visitors to experience a real taste of China.
Most of Chinatown was destroyed in the 1906 earthquake，but the city and residents rebuilt it，taking care to include lots of Chinese architecture.Traditionally，visitors enter Chinatown through the legendary Dragon Gate，which was built using materials donated from China.Other famous sites include the Tin How Temple and Bank of Canton，to name but a few.Visitors can also spend hours just exploring the interesting sights，smells，and sounds of China.Portsmouth Square is also a key site，being the centre of Chinatown.It has a long and famous history，with the author Robert Louis Stevenson having spent much time writing there.These days，the square is a great place to see traditional Chinese culture in real life，such as games of Chinese chess，and people practising tai chi.
The stores in the Chinatown offer a unique range of souvenirs，goods，and clothing.All kinds of traditional Chinese herbal medicine can be found，too，and there are Chinese tea stores，where visitors can taste and buy varieties of Chinese tea.
But perhaps what many tourists and San Franciscans treasure most about Chinatown is its food.There is Chinese food to suit everyone’s taste，with traditional dishes from all over China.
Chinatowns are an important part of the diverse culture of the USA.They allow visitors who have never been to China to experience traditional Chinese culture first hand.
Location：in San Francisco
History：a residential area for Chinese immigrants，most was destroyed in the 1906 earthquake
Famous sites：the legendary Dragon Gate，Tin How Temple and Bank of Canton，Portsmouth Square
Stores：souvenirs，goods，clothing，traditional Chinese herbal medicine，Chinese tea
Food：traditional dishes from all over China，suit everyone’s taste
Summary：an important part of the diverse culture of the USA
(Ⅱ)Preparation for writing—words an phrases
1986年举办世博会(the World Expo)，2010年举办冬季奥运会
Step 1 List the outline of the passage.
Step 2 List the words，phrases and sentences.
1．Words and phrases
④总之，温哥华非常值得一游。(be worth doing)
Step 3 Draft the passage by using the following words.
Vancouver is a coastal seaport city in western Canada and more than 640，000 people live in the city.
Surrounded by mountains and water，Vancouver is known as one of the most beautiful cities in the world.The green trees，fresh air and beautiful scenery of Vancouver attract tourists from all over the world to visit.Besides，great events also take place in this city.In 1986，the city played host to the World Expo and in 2010，the Winter Olympic Games were held here as well.
In a word，Vancouver is well worth visiting.
Ⅲ.Post－writing—polishing the passage
Exchange your passage with your partner and pay attention to the following points.
□1.Is the city introduced clear?
□2.Is the information specific and are the facts correct?
□3.Does the city introduction contain all the important information?
□4.Is the information arranged in a good order?
□5.Does the passage have a proper beginning and conclusion?
□6.Are there any grammar，spelling，or punctuation errors？
1．Standing on the top of the mountain，the temple has witnessed many changes in this area.
2．It’s very convenient to get there by taking buses besides the subway.
3．As is known to us all，Mount Huashan is famous for its breathtaking cliffs and its unique characteristics.
4．On arriving at the top of the hill，we were deeply attracted by the beautiful scenery.
5．You can learn a lot about the history of China and Chinese people.
6．The city lies in the north of China.
7．This arched bridge has a history of several hundred years.
8．The city covers an area of 15 square kilometers.
9．You will never regret if you pay a visit to it.
10．It is really a great feast for your eyes.