Site and Motion 1. The wooden wall was in the shadow of the sun at the time I took the photograph. But because the particles of the light are out of the sun, we can still see the shadow part. At the edge of the building, the particles from sunlight and the eaves are mixed, which make the edges look blurry. 2.Particles as the most basic elements, they can be regarded as the same in the macroscopic aspect. While the different number of particles constitute different kinds of object. Glass is transparent and reflective but fragile, and the stone is strong but opaque. 3.All of the object is not an eternal existence, because particles are constantly absorb and release. When the sun shines directly into the glass, the particles of light are reflected, making the glass into a state of disappearing. The surface of the actual object covered by the virtual cloud which is constituted by particles. These particles run from one object’s track to another object’s. So when we take photos from the building, the particles of the pinhole camera, or the film or ourselves, may participate in the composition of the building’s virtual cloud. Photography object must be a genuine thing, painting can be fabricated, something that did not appear on the front can be drawn. This kind of thing would be positioned in the camera but photography. Refer is the fundamental of photography. We often say that the invention of photography is a painter, but photography was invented by a chemist, photography is the essence of the existed.

spirit and matter Spirit can be seen as virtual, and matter can be seen as actual. When an actual object is put into the existence of nothingness, space appeared. The change of all the matter happens in the unthinkable minimum of time, which shows change occurring continuously from the beginning of the world to the end of the universe. People use observable and organized change to perceive the passage of time, and daytime can be defined by the periodic cycle of the sun. Change is not a circle, as matter changes from an ordered situation to a disturbed situation. Although the sunrise and sunset occurs every day, it’s not the same sunrise and sunset, so time is not in a circle: the beginning and the end of a day is not the same beginning and end of any other day, not even a single instantaneous moment is repeating. Time has a direction. So the relationship between the actual matter--object and particles, and the virtual spirit--space and time is shown in the diagram above.

which one is correct? “Why vacancy rate is temporary?”or”Why is vacancy rate temporary?” “Why do housing prices decline?” or “Why housing prices decline?”

Property prices In my opinion the property bubble won’t burst in tier 1 cities because the housing price will rise in the future. why? first reason is that tier 1 cities have the best social resources such as advanced education, better medical treatment, more opportunities of career. these benefits can attract a large number of people want to settle down to these cities and some people even give up a comfortable environment in other cities and come here to live in a poor condition of house. how to settle down here? buy houses. the second reason is since the density of population in these cities increasing and the land is limited, it means the number of houses in these cities are limited, so the demand of buying house is exceeding the supply of selling house. in case that 10 people want to buy house but there is only one house to sell, the highest bidder will get the house, so it leads to prices rise. an evidence can proof the price will rise is government policy on the housing of first tier cities is to limit the purchase and reduce loans. this is a way for the government to control prices, when prices are too high, limit the purchase can slowed rise of prices effectively. so. and as long as price not fall ,the bubble won’t burst.

Does this sentence have mistakes? Continuous sharp rise in housing price without relay on fundamental value.

could you please check this sentence current or not? Seniors who has the qualifications to live in Sun City Center must be over 55 years old. This rule could prevent the possibility of investors occupied resources and protect the rights of older people.Is it possible to use active voice here?

A case in America 3.A successful case study American society began aging in the 1960s and now the elderly account for about 13% of the American population. The American pension system and real estate industry has become increasingly stable for half of a century (Li, 2008). There is a successful case of retirement community called “Sun City Center” in Arizona which built on a large scale by Del Webb. This project has 5 main advantages and will be analyze individually. (1) Strict management people who has the qualifications to live in Sun City Center must be over 55 years old. This rule could prevent the possibility of investors occupied resources and protect the rights of elderly people. (2) Barrier free design Sun City Center has the barrier free design such as the blind lanes, disabled access and the safe separation between people and vehicles. It is quite necessary for the elderly that with reduced mobility. (3) Location Sun City Center is located in the place which has a comfortable climate, especially the adequate sunshine. It is calculated that the total daylight hour is about 312 days annually. Besides, it is near the Lake Pleasant Park with wonderful scenery. The surrounding is quite suitable for the elderly. (4) Architectural Diversity There are dwellings and some other facilities for leisure, entertainment, commerce, as well as drop-in centers and elderly care for the elderly community. Dwellings vary in size, function and design, including apartments, houses and lifestyle center which could fully meet the various needs of different elderly. (5) Medical Service In Sun City Center, health and medical conditions have achieved the advanced level. The community offers expert consultation and medical staff will check the elderly health door to door regularly, especially the psychological service to make their life longer. Above all, Sun City Center proves that it is feasible leading real estate to develop communities for the elderly provides lessons for China. However, China should consider its local conditions. As the designer said, “Our country is aging heavily, what we want to do is to have more vitality, more activity and more than what we are used to in our country. (Rubiano & Chan, 2010).” Therefore, developing communities is not only to build houses. Good services are also needed especially care services.

some suggestion 4.1 Suggestion for real estate sectors: (1) choosing rural area It is crucial to build retirement communities in rural areas. Since cities are narrow and noisy with countless of buildings, constructers and traffic, the environment situation is not quite suitable for the elderly to live in. Also, the lands in cities are more expensive than that in rural or outskirt, to save the investment cost of retirement communities it is better to establish these in rural area. Moreover, this approach can make profit in other aspect. For instance, to create a decent landscape attractive spot in retirement communities and to built a tour hotel at the corner of this region. Harnessing the good quality eco-friendly surrounding to relax both the elderly and tourists from cities or other countries. However, it is required more administers to keep the elderly and the tourists away from each other to avoid interruption. So it is just one option of other possibilities to develop the retirement communities’ benefits. (2) perfect function Ensure that retirement communities have a completely function to serve the whole people in it. Because retirement communities are built in rural regions, it means the social functionally commercial buildings such as supermarkets, cinemas, gyms and other public architectures cannot offer service to the retirement communities. Therefore, it is important that when the designs of retirement communities begin, a range of perfect functional buildings should be planed into them. Just following the case in American: the sun center, it puts shops, golf cites, swimming pools and other facilities. Specially to point out that not only commercial buildings are demanded but also nursing care buildings like hospitals, medical centers and sanatoriums are needed.