The story of Graffiti is an interesting one. In the early 1970's, a New York City mailman used to travel across the city on the buses and subways to deliver his mail. He dreamt of riding on all the buses and subways in New York. His problem was that many buses and subways looked the same, so he would have to mark the buses and subways to know which one he had been on before. His name was Vic and his work ID was 156---so he left the mark VIC 156 on every journey he took. Soon people started to notice these sighs and wondered what they meant. When word got round what was happening, people would check the buses and subways to see if Vic had ridden on them. Other people decided they would take Vic's example and started leaving their own names. These marks became known as "Tags" . Tags became more color1ful and artistic and gangs of teenagers started leaving them on the walls in their neighborhood. This was to mark their area from other gangs. For many years people thought nothing of graffiti, but gradually they came to realize that graffiti was an art from that young people used to express themselves. So they gave them special area to paint on. But remember: If you paint on public walls, it is illegal and you shouldn't do it. If you want to leave graffiti, you can _ . A) leave it wherever you like B) leave it on the wall of your school building C) leave it on the special area for graffiti D) leave it on the walls in their neighborhood
C
(Question)
In the 1960s Walt Disney pictured in the mind a future utopian city with underground roads and a climate-controlled round roof. The real community of Celebration, Florida, built in 1999, applies the social and environmental goals of both Disney and the New Urbanism movement. Disney and the New Urbanism have imagined communities that promote social and local communication. Celebration has a central Market Street district to reduce traffic and encourage social contacts. The idea is that if the downtown area is neatly and closely ranked, people will walk and meet their neighbors. Downtown events like arts festivals also bring citizens together. Narrow, tree-lined streets are "traffic calm"----with slower speed limits----to encourage bicycling and walking. Moreover, housing in Celebration includes both single- and multi-family houses that encourages socialization. Apartment buildings are located close to downtown, and houses are built close together with small yards. They feature entrance halls to encourage citizens to socialize. "Many aspects of that kind of design are really aimed at maximizing social communication between citizens, not just on the streets but also in community institutions that are very much a part of public life there," says Andrew Ross, a New York University professor who lived in Celebration for one year. Utopian communities such as Celebration are also designed with environmental protection in mind. The town itself is built on 4,900 acres surrounded by a 4,700 acre protected greenbelt. The greenbelt parks, and common areas accommodate native wildlife and animals. High-rise office and apartment buildings provide close office and living space in a small geographic area in order to reduce urban _ , the spread of today's cities onto nature areas. Buildings also minimize environmental influence by using cooling; and electric systems with insulated (;) glass, cooling towers, and energy-saving lamps. "The town more or less borrows very heavily from New Urbanist principles...to... Celebration mentioned in the passage is a _ . A) city offering living spaces B) community promoting socialization C) special occasion in the market D) downtown area with high buildings
(Answer)
B
Ques: By today's standards, my mobile phone is pretty rubbish. It's a Nokia 1616. If that doesn't mean much to you ( it's not the kind of phone you see advertised on television) ,all you need to know is that it's a small, not very heavy device with which you can send and receive telephone calls and text messages. It also has a very handy torch on the top for when you can't find your keys, or when you drop something on the floor in the cinema. Apart from that, my phone doesn't do much. Well, it has an alarm, and it probably has a calculator and things like that, but it's nothing compared to a smartphone. Why would I want one of those? I have often been told that the big advantage of having a smartphone is that " you can do everything with them!" But when was the last time you saw someone doing "everything" with a smartphone? Okay, so they may have an endless list of functions, but generally they are used for checking social networking sites, playing games, and receiving and replying to emails. I'm happy just doing all of those things at home on my laptop. As far as I can tell, the best thing about having a smartphone is that you can be connected to the internet all the time. Don't get me wrong, I love the internet, but I just don't see the point of constantly being online. I can't remember the last time I received a Facebook update which was so urgent that I had to read it as soon as it appeared, and I can't imagine ever having a job which was so important that I would need to read work-related emails immediately. I would think that if someone needed me urgently, they would just ring me rather than send an email. And my trusty Nokia can manage that. One of the most peculiar effects of the smartphone is, in my opinion, the newly-found addiction to maps and navigation systems. Is there anything more boring than knowing exactly where you are all of the time? How do you get to know an area if you don't get lost there a few times? And if you are dependent on online maps, what happens to those great places you... The writer's purpose for writing this article is to _ .:] A) explain why he doesn't want a smartphone B) warn readers of the risks of using smartphones C) complain about the troubles caused by smartphones D) inform readers of the latest development of mobile phones
Ans: A
Plants need green leaves to make food. A plant needs sunlight and carbon dioxide from the air for making food and it also needs water and salts from the soil to make food too. There are certain cells in the leaves which change carbon dioxide and water into sugar. To do this the cells needs energy, which they get from the sunlight. Green leaves make food for the whole plant. A red leaf can make food too because under the red color1ing of the leaf there are food----making cells. There are no leaves which are completely yellow, for they can't make food. The plant makes sugar for its food. In sunlight green leaves make a lot of sugar. The veins can't carry all this sugar away, so the leaves change the sugar into starch , which is kept and so stored in the leaves. At night, the starch changes back to sugar. It is then carried away from the leaves. Some of the sugar is used as food by the plant while the rest is stored as starch. In some plants, food is stored in the roots, in others it is stored in the stem and in leaves, fruits and seeds. Sugar is made for its food by _ . A) sunlight B) veins C) stems D) green leaves
D