The new iPhone 3G should please everyone. Its look and feel are only slightly improved, but a faster network loads Web pages more quickly, true GPS functionality allows it to easily find places nearby, and the new $199 price (down from $400) makes it an affordable luxury.
Before deciding whether to buy, however, make sure you can actually take advantage of the iPhone 3G's high-speed data network. 3G stands for third-generation, which in non-geek speak translates to Web pages and mail messages that, ideally, load about three times faster than on the original iPhone. Even better, 3G coverage enables you to make a phone call and surf the Web at the same time. That's great, if you live or work in a place where the 3G network of AT&T（美国电话电报公司） (the sole wireless carrier of the iPhone) is active. That's not so great in cities like New York where AT&T's cellular coverage is awful. As one of my colleagues in New York City, who bought the original iPhone, commented, "It's just a toy. You can't make phone calls on it, so I carry my Verizon phone with me all the time."
The real fun begins when you tap on the icon called "App Store" and start browsing the hundreds of add-on applications that have been developed just for the iPhone. You'll find tons of games (I like JirboBreak, a free game inspired by the Atari classic Breakout) and mobile versions of popular websites like Pandora, Facebook, MySpace and the New York Times. Most apps will cost you, but the vast majority are $9.99 or less. The apps work on the old iPhones too, but you'll enjoy them a lot more on the iPhone 3G because many of the programs, including Yelp (local business reviews), Whrrl (mobile social networking) and UrbanSpoon (restaurant reviews), use your exact location — provided by the iPhone 3G's GPS chip — to make recommendations. The apps also load much faster over the 3G network.The new iPhone 3G has following features except that _______
| A．It looks and feels better | B．It has a faster network |
| C．It is easy to locate a place | D．It is too expensive for people to buy |
Why do one of my colleagues carry Verizon phone with him all the time? ______.
| A．Because iPhone 3G is just a toy. |
| B．ecause he prefers Verizon phone better. |
| C．Because AT&T's cellular coverage is terrible there |
| D．Because Verizon phone enables him make a phone call and surf the Web at the same time |
Which of the following statements is NOT true according to the passage. ____.
| A．App Store will offer you great fun. | B．many apps have been developed for the iPhone. |
| C．Most apps are very expensive. | |
| D．Pandora, Facebook, MySpace and the New York Times are popular websites. |
From the passage we know that the attitude of the author toward iPhone 3G is _____.
| A．doubtful | B．appreciative | C．optimistic | D．pessimistic |
You may have noticed that the world′s population is not evenly distributed(分布) around our planet. There are some countries where people seem to be living nearly on top of each other because conditions are overcrowded. Then there are others where it seems that hardly anybody lives. What influences this unequal distribution of people? There are specific advantages and disadvantages of *diving in a certain area.
The two main factors that influence people`s choice of location are climate and resources. Climate is the usual weather conditions in a region. Areas that have bad weather are generally less deal as places to live in. The north and south poles at the top and bottom of the world may be beautiful in their rugged, natural way, but the disadvantage of the bitterly cold and windy conditions usually keeps people away. When it comes to climate, warm conditions and a normal amount of rainfall are advantages that attract people.
Natural resources are things that we get from nature that help us survive. Each region offers different resources, and therefore attracts different groups of people. People who enjoy the beach can make their living by catching and selling the ocean′s many fish and other sea creatures. Those who prefer farming can take advantage of rich soil(土壤) in valleys near rivers. Some people are willing to accept the disadvantages of the terrible conditions of deserts or mountains in order to take advantage of the resources like oil or woods.The underlined part “on top of ”in the first paragraph most likely means_______.
| A．very close to | B．on the highest part of |
| C．in control of | D．on the surface of |
What are the main factors that influence the distribution of people?
| A．Resources and oceans. | B．Climate and rivers. |
| C．Climate and resources. | D．Warm conditions and rainfall. |
The writer thinks many people don′t live near the north or south pole because ________.
| A．they can′t get enough food there |
| B．they natural sights there don′t attract people |
| C．the unpleasant weather keeps them away |
| D．the length of nighttime is too short or too long |
Why do people go and live in valleys near rivers?
| A．The temperature isn′t too low in winter. |
| B．the resources like oil can bring them much money. |
| C．People can make their living by catching and selling fish. |
| D．It′s easier for people to grow plants or keep animals. |
The purpose of the example in the last paragraph is to tell us _______.
| A．people cannot survive in cold conditions |
| B．different resources attract different groups of people |
| C．People usually prefer living at the seaside to living in mountains |
| D．a normal amount of rainfall is necessary for people to live in the desert |
Can you remember the day when you spoke your first word? If you can, you are unusual. Try to imagine what first few months of your life were like. I am sure you just spent most of your time eating, sleeping and crying. As you grow older, you were awake more of the time. It took your parents more time to play with you and talk to you. You watched and listened curiously. You began to know that people made certain sounds to go with certain things.
Then you began to try making the sounds you heard. And step by step you were able to make the right sound for one thing.
On that day you came to understand the secret of language. The secret is that a certain sound means a certain thing. One sound might be as good as another. But it is no good as a word unless everybody agrees on its meaning. Only when a group of people use the same set of sounds of things, can they understand each other. Then, and only then do these people have a LANGUAGE.
After you found the secret of language, you learned words. Some of the words meant things, such as BOOKS, CHAIRS and SHOES. Some words meant doing things, such as GO and SWIM. And other words describe things, such as GOOD and DIRTY. Soon you learned to put words together to express one's idea, such as "1 want to go out and play with my friends." This is language. By means of language people can communicate. So we say languages are means of communication.can remember the day when___________.
| A．One; he spoke his first word |
| B．No one; he spoke his first word |
| C．Most people; they spoke their first words |
| D．None; they spoke their first words |
When you were a little baby, you_________.
| A．made sounds to let people know that you wanted to eat |
| B．spent most of your time playing with your parents |
| C．could not hear any sound around you |
| D．spent most of your time eating, playing and crying |
The secret of language is that____________.
| A．one sound might be as good as another |
| B．people can understand each other |
| C．a certain sound is for a certain thing |
| D．there is a special sound for each person |
You could learn words_____________.
| A．before you knew what the language was |
| B．after you knew what the language was |
| C．if you knew the secret of the language |
| D．when you were a baby |
The aim in using language is.
| A．to get everything one wants from others |
| B．to say what one wants to know |
| C．to share ideas, opinions, news, etc with one another |
| D．to make oneself understood by others |
The best way of learning a language is using it. The best way of learning English is talking in English as much as possible. Sometimes you'll get your words mixed up (混合) and people will not understand you. Sometimes people will say things too quickly and you can't understand them. But if you keep your sense of humor , you can always have a good laugh at the mistakes you make. Don't be unhappy if people seem to be laughing at your mistakes. It's better for people to laugh at your mistakes than to be angry with you, because they don't understand what you are saying. The most important thing for learning English is: "Don't be afraid of making mistakes because everyone makes mistakes."The writer thinks that the most important thing for you to learn a language is___________.
| A．reading | B．practicing |
| C．talking about it | D．listening |
What should you do in learning English?
| A．Try to make some mistakes. |
| B．Avoid making any mistakes. |
| C．Remember as many new words as you can. |
| D．Use it as often as you cam |
If people laugh at the mistakes you make, you should ___________.
| A．be angry with them | B．be angry with yourself |
| C．not care | D．believe you are right |
When you make a mistake, you should___________.
| A．never make any mistakes again |
| B．tell others not to make the same mistake |
| C．punish yourself for making it |
| D．keep your sense of humor |
The story tell us:" ___________."
| A．It is normal that we make some mistakes in learning English |
| B．Everyone must make mistakes |
| C．We can avoid making mistakes in learning a language |
| D．Laughing can help one learn English well |
Everyone needs friends. We all like to feel close to someone. It is nice to have a friend to talk, laugh and do things with. Surely, there are times when we need to be alone. We don't always want people around. But we would feel lonely if we never had a friend.
No two people are the same. Sometimes friends don't get along well, which doesn't mean that they no longer like each other. Most of the time they will go on being friends. Sometimes friends move away, then we feel very sad. We miss them much, but we can call them and write to them. Maybe we would never see them again, and we can make new friends. It is surprising to find out how much we like new people when we get to know them. Families sometimes name their children after a close friend. Many places are named after men and women, if they are friendly to people in a town. Some libraries are named this way. So are some schools. We think of these people when we go to these places.
There's more good news for people, if they have friends. These people live longer than those people if those don't have friends. Why? It could be that they are happier. Being happy helps you stay well. Or it could be just knowing that someone cares, if someone cares about you, you take better care of yourself.The first paragraph tells us __________.
| A．none needs friends |
| B．we always need friends around us |
| C．making friends is the need in people's life |
| D．we need to be alone |
Which of the following is what the writer doesn't say in the passage?
| A．People are happy when their friends leave them. |
| B．People may never see their friends after their friends move away. |
| C．People can know their friends in different ways. |
| D．People like their friends very much if they get to know them. |
Which of the following is the most probable place people name after friendly people?
| A．A house. | B．A room. |
| C．A library. | D．A village. |
If people have friends, they would live longer, because __________.
| A．they feel happier and healthier |
| B．they get a lot of help from their friends |
| C．they take better care of themselves |
| D．both A and C |
This passage tells us __________.
| A．that people are all friends |
| B．that people need friends |
| C．how to get to know friends |
| D．how to name a place |
The oldest and most common source (来源) of renewable energy known to man, biomass is one of the most important forms energy production in the United States and elsewhere. Since such a wide variety of biomass materials is everywhere —- from trees and grasses to agricultural and city —- life wastes —-biomass promises to play a continuing role in providing power and heat for millions of people around the world.
According to the Union of Concerned Scientists(UCS), biomass is a kind of renewable energy source that produces no carbon dioxide, because the energy it contains comes from the sun. When plant matter is burned, it gives off the sun’s energy. In this way, biomass serves as a sort of natural battery(电池) for storing the sun’s energy. As long as biomass is produced continuously —-with only as much grown as is used— the “battery” lasts forever.
According to the Energy Information Administration, biomass has been one of the leading renewable energy sources in the United States for several years running through 2007, making up between 0.5 and 0.9 percent of the nation’s total electricity supply. In 2008—-although the numbers aren’t all in yet—-wind power probably took over first place because of the rapid development of wind farms across the country.
Producing power from biomass helps reduce some 11 million tons of carbon dioxide each year. Some homeowners also try to make their own heat by using biomass materials. Such practice may save homeowner’s money, but it also produces a lot of pollution. So, the best way is to encourage power plants to use it.Why is biomass considered as “a sort of natural battery”?
| A．It burns simply plant matter. |
| B．It stores the energy from the sun. |
| C．It keeps producing electricity. |
| D．It produces zero carbon dioxide. |
We learn from the text that in 2008 ______.
| A．0.5~0.9 of power supply came from biomass |
| B．biomass might become the main energy source |
| C．there was a rapid growth of electricity production |
| D．Wind power would be the leader of renewable energy. |
Why does the author encourage power plants to use biomass?
| A．To save money. |
| B．To prevent the waste of energy. |
| C．To reduce pollution. |
| D．To increase production safety. |
Where does the text probably come from?
| A．A book review. | B．A business report. |
| C．A research plan. | D．A science magazine |