Read the article and select the best answer. Article: Many families in the prefix = st1 /United Stateshave a larger income now than ever before, but people are finding it difficult to make ends meet anyway. Almost everyone is wondering, "What happens to all my money? I never seem to have anything left to put away." Why isn't a dollar worth as much as it used to be? One dollar is always worth the same amount, that is, 100 cents. But the value of a dollar is how much it can buy. The value of money depends on the cost of living. Economists say that the cost of living is the money that a family must pay for the necessities of life such as food, housing or rent, clothes and medical expenses. For many years now the cost of living has increased greatly, so the value of the dollar has decreased. When a dollar has a low value, you cannot buy as many things with it. No one fully understands why the cost of living keeps increasing, but economists believe that workers and producers can make prices go up. As workers earn more money, they have more money to spend, so they demand more goods. If there is a great demand for certain goods, the prices of these goods go up. At the same time, if there's a shortage of goods, the price also goes up. For example, if everyone wants to buy more and more gas, the price of gas goes up. When companies withhold gas from buyers, they can also make the price of gas go up. Families need to know what happens to their money. They need to make their income meet the cost of living, so many people plan a family budget. A budget is a list of monthly expenses. If your expenses add up to more than your income, you must find ways to save money. Maybe you're spending too much on entertainment. Or if you're spending too much on clothes, you may want to sew your own clothes. Budgeting helps you spend your money wisely as the cost of living increases. Question: Why does the cost of living keep increasing? Options: A: There are always shortages of goods. B: The workers are getting lower and lower pay. C: The government makes no difference. D: People demand more and better goods.
D

Read the article and select the best answer. Article: "I can't live without my mobile phone!" is what I often hear people say as they talk about how mobiles have become an essential part of their lives. The all so common sight of heads bent, eyes staring at mobile screens and fingers busy tapping away repeats itself across major cities around the world. Whenever there is a moment to spare while on the train, taxi or waiting in a queue, people busy themselves with their mobile phones. Some people believe our unhealthy obsession with mobile phones is destroying how we appreciate the little things in life or miss the moments that matter. The truth is that technology overall should be seen as just a tool to improve our lives. Mobile phones have certainly had a great influence on our lives, but I truly believe it is for the better. It's changed the way we communicate, whether for work or play. We are now less constrained by time and geographical location. With my mobile phone, I can dial into conference calls while stuck in a traffic jam, or reply to urgent e-mails while on the go. I can send a text message or share photos and videos with friends who aren't living in the same country. My phone calendar keeps my life organized, and even Facebook, Twitter, and instant messaging are now accessible from mobile phones! The mobile revolution isn't just changing the lives of urbanities like myself. I know of a young Bangladeshi woman named Shompa Akhter who is crazy about fashion and design. She dreamt about starting her own business and she did just that, opening a shop in Kushtia featuring her own creations. Dealing with supplies in different towns was a problem for Shompa --- purchase orders had to either be hand delivered or mailed out to supplies. Shompa also found it tough publicizing her business to potential customers outside her town. But once she learnt to operate the mobile phone, she was addicted. The 25-year-old businesswoman now stays in touch easily with her suppliers. Mobile e-mail is a blessing in her life. Who would have thought that mobility could... Question: What's the author's attitude towards mobile phones? _ . Options: A: Doubtful B: Supportive C: Critical D: Uninterested
B

Read the article and select the best answer. Article: Britain is facing a sharp rise in its rat population as growing numbers of people leave what they cannot finish of the fast food in the street, an environment group warned .Keep Britain Tidy said the rats were stopping their traditional hunts underground and were running across the streets, invited by burgers, pizzas and crisps left behind by man. "The rat population is on the rise and soon it'll be as common to see a rat on our street as it is to see a dog or a cat," said group Director, Sue Nelson. The practice of spreading fast food litter and scraps on the street rather than in the dustbin--with young men the worst group--was behind the rise. According to the National Rodent Survey in 2005, Britain's rat population has grown by nearly one quarter since 2000 and is now estimated at 60 million, two million more than the human population. On average a rat can give birth every 24-28 days and just a single pair of rats can produce a family of 2,000 a year. Around 200 people a year get Weil's Disease -an infection which can lead to liver or kidney failure and eventually death and which is carried in rats' waste. To attract people's attention to the problem, Keep Britain Tidy produced a cinema ad with a title "How close do you want them to get?" The ad gave a shocking image of a young woman sleeping in a bed of rats--reminding people of the terrible scene from James Herbert's classic horror tale The Rats, in which rats begin to hunt for humans. Question: We may infer from the passage that _ . Options: A: Weil's Disease will finally end the world B: pizzas and crisps will become unpopular C: rats will put human beings' life in danger D: young people should take the responsibility for the rat population
C