On an island there are exactly seven towns: T, U, V, W, X, Y and Z. All existing and planned roads on the island are two-way and run perfectly straight between one town and the next. All distances(距离；路程) by road are distances the main square of one town to the main square of another town. U is the same distance by road from T, V and W as Y is from X and Z. Th
e following are of the now existing roads on the islands.
Road 1 goes from T to V via (经由) U.
Road 2 goes directly from U to W.
The triangle (三角形) road goes from X to Y, from Y on to Z, and from Z back to X. Any main square reached by two roads is an interchange (立交桥) between them, and there are no other interchanges between roads.
68. Which of the following sketches is correct?
A. W B. U
T U V W V T
C. T U V W D. T W V
U
69. Draw a sketch of the Triangle Road. Which of the following sketches is correct?
A. Z B. Y X
Y
Z
X
C. X Z D. Y Z
Y X
70. Which of the following is a town from exactly two other towns can be reached by road?
A. T B. X C. V D. W
Why are people interested in eating raw foods or whole foods? One reason is that eating these types of food reduces the risk of acid accumulation in your body.
Raw and whole foods are usually digested more efficiently than cooked and refined foods. When we cook foods, we destroy the natural enzymes (酶) that are part of the food in its raw form. These enzymes were intended by nature to help us digest the food. When we consume food without these natural enzymes, our bodies either digest the food improperly or allow too many nutrients to be absorbed into the bloodstream. In both instances, the result is obesity. When too many nutrients are absorbed at once, the body grows fat. Improperly digested food moves slowly through the digestive tract, where it becomes increasingly acidic. To protect its vital organs from this acidic waste, the body changes the acid into fat and stores it safely away from the organs.
Processed foods contain chemical elements, which might confuse the appetite mechanism that tells us when we’ve had enough to eat; as a result, people often overeat. Processed foods also upset the digestive cycle. The body will either identify these foods as allergens and then store them safely away from the organs as fat, or the remains of undigested food will become acidic and enter the bloodstream as acid waste, which will stick to the blood vessel walls and block the passage of vital oxygen and nutrients heading for the body’s cells. The body’s metabolism (新陈代谢)becomes inactive, and the result is weight gain and obesity.
The accumulation of acid in the digestive tract makes digestion increasingly inefficient. When that happens, even healthy foods can become acidic and the food allergies will become more common.
To stop this vicious(恶性的)circle in its tracks, people need to consume food and supplements that will neutralize (使…中和) the acid already accumulated in body. Eating the right types of raw and whole foods can help. It’s also important to restore your enzyme balance. You need to identify and avoid the foods that cause acid accumulation and consume the foods that increase enzyme production. If you truly want to change and help your body heal itself, you need to take an active approach.What is the main purpose of this passage?
| A．To advocate eating more raw and whole foods. |
| B．To tell the differences between raw and processed foods. |
| C．To inform people of the harm of processed foods. |
| D．To warn people of the problem of obesity. |
It can be inferred from Para. 2 that ________.
| A．it is essential for people to protect their vital organs |
| B．foods with natural enzymes help people keep fit |
| C．we’d better be cautious about raw and whole foods |
| D．giving up cooked and refined foods is a new lifestyle |
Processed foods are unhealthy because they __________.
| A．destroy body’s cells | B．are difficult to digest |
| C．may lead to obesity | D．stop body’s metabolism |
What is likely to be talked about following the last paragraph?
| A．Active approaches to avoid acid. |
| B．Different causes of acid accumulation. |
| C．Correct ways to cook raw foods. |
| D．Suitable types of raw and whole foods. |
What can we learn from the text?
| A．Processed foods are good for our appetite mechanism. |
| B．Eating the right types of raw and whole foods does good to our body. |
| C．The accumulation of acid in the digestive tract makes digestion more effective. |
| D．Processed foods also comfort the digestive tract. |
Guide to Stockholm University Library
Our library offers different types of studying places and provides a good studying environment.
Zones
The library is divided into different zones. The upper floor is a quiet zone with over a thousand places for silent reading, and places where you can sit and work with your own computer. The reading places consist mostly of tables and chairs. The ground floor is the zone where you can talk. Here you can find sofas and armchairs for group work.
Computers
You can use your own computer to connect to the Wi-Fi specially prepared for notebook computers, you can also use library computers, which contain the most commonly used applications, such as Microsoft Office. They are situated in the area known as the Experimental Field on the ground floor.
Group-study Places
If you want to discuss freely without disturbing others, you can book a study room or sit at a table on the ground floor. Some study rooms are for 2-3 people and others can hold up to 6-8 people. All rooms are marked on the library maps.
There are 40 group-study rooms that must be booked via the website. To book, you need an active University account and a valid University card. You can use a room three hours per day, nine hours at most per week.
Storage of Study Material
The library has lockers for students to store course literature, When you have gained at least 40 credits(学分), you may rent a locker and pay 400 SEK for a year’s rental period.
Rules to be Followed
Mobile phone conversations are not permitted anywhere in the library. Keep your phone on silent as if you were in a lecture and exit the library if you need to receive calls.
Please note that food and fruit are forbidden in the library, but you are allowed to have drinks and sweets with you.The library’s upper floor is mainly for students to______.
| A．have group discussions | B．read in a quiet place |
| C．take comfortable seats | D．get their computers fixed |
Library computers on the ground floor_______.
| A．contain software necessary for schoolwork |
| B．help students with their field experiments |
| C．are for those who want to access the Wi-Fi |
| D．are mostly used for filling out application forms |
What condition should be met to book a group-study room?
| A．A group must consist of 8 people |
| B．Three-hour use per day is the minimum |
| C．Applicants must mark the room on the map |
| D．One should first register (注册) at the university |
A student can rent a locker in the library if he______.
| A．can afford the rental fee |
| B．attends certain courses |
| C．has nowhere to put his books |
| D．has earned the required credits |
What should NOT be brought into the library?
| A．Mobile phones | B．Orange juice | C．Sandwiches | D．Candy |
Americans are buying more products and services than ever before through the Internet, and the popularity of online sales is likely to spread to other countries. Online sales now represent as much as one-tenth of all retail(零售) sales in the United States，which has led traditional stores to seek new ways to keep their customers loyal.
Lynne Shaner used the Internet to buy everything she needed for her wedding and holiday gifts for her husband. Other than food, 90 percent of her purchases(购买的东西) were made on her home computer. “I find that, by being able to go online and opt for the things that I need to select and have them delivered to me right at my doorstep, I’m free from all the driving, all the crowds, all the noise, and I usually get a better selection.”
There are a lot of people like her. Experts say American online shopping hit records in both November and December. Fifty-seven percent of Americans have bought something electronically. Store owners worry that this growing amount of online sales will hurt their business. Cornell University marketing professor Ed McLaughlin says, “They should be worried. Anything that can move online will be sold online. And it's just a matter of time. However, traditional stores can keep their customers by selling goods like clothing, which buyers may want to see and try on before purchasing. The stores could also offer things that are difficult to ship. ”
Bill Martin, whose business helps stores learn about their customers, says, “Traditional stores offer a social experience that some people enjoy. There is still a lot of emotion in the buying decision that takes place, and you can't always get that on-line. It's a rather cold process. Traditional stores can provide goods for buyers more quickly than online stores. And some retailers are using websites to persuade people to visit their stores. ”
While online shopping worries some business owners, the only worry for delivery services like FedEx and UPS is keeping up with the number of packages. UPS Manager Dana Kline says her company is very busy at this time of year. UPS is so busy that it has filled 55,000 temporary worker positions during the holiday season.According to Lynne Shaner, shopping online ________.
| A．helps choose things she needs most |
| B．will replace traditional shopping soon |
| C．offer many benefits to customers |
| D．seldom provides a better selection |
What does the underlined phrase “opt for” in the second paragraph mean?
| A．choose | B．sell | C．design | D．purchase |
Professor Ed McLaughlin thinks that _________.
| A．online shopping has little effect on traditional stores |
| B．it is time for store owners to be anxious about their business |
| C．traditional stores can do nothing to stop challenges from online shopping |
| D．traditional stores should sell more things that are difficult to ship |
What can we know from the fourth paragraph?
| A．Online sales fail to offer customers sense of emotion. |
| B．Customers enjoy social experience when shopping online. |
| C．Traditional stores can help customers decide what to buy. |
| D．Customers can buy goods more quickly after visiting websites. |
From the passage we can infer _______.
| A．UPS has filled more worker positions than FedEx |
| B．business owners are concerned about delivery services |
| C．FedEx is keeping up with UPS on the number of packages |
| D．delivery services are facing more and more pressure from online sales |
According to a study by SallieMae, 84 percent of undergraduate students have credit cards, and by the time they are seniors, they have accumulated US＄4,100 in debt, on top of whatever student loans they may have taken out.
Credit cards are the most convenient form of payment, and they are aggressively marketed to college students. Reportedly, a typical college student carries 4.6 credit cards and US＄3,173 in credit card debt.
Credit cards seem to be a fact of life, not just student life. In the long term, using a credit card properly and paying off the balance can help establish a card history and increase your credit score, which will come in handy when you need an important loan, for a house or car, for example. Your credit score can affect even unrelated things like insurance rates. Credit cards also offer more protection for users than debit cards （借记卡）.Under federal law, the credit card holder is only responsible for the first US＄50 in fraudulent(欺诈的)purchases in cases of theft or loss. However, debit card users are responsible for the first US＄500.
SallieMae found some good news in the fact that two thirds of students had discussed credit issues with their parents, but 84 percent said they needed more information. Those who didn’t get any guidance were more likely to be surprised when they found out how much they owed.
While credit cards offer the easiest access to money, they make it easy to live outside your means. Less than a fifth of students surveyed paid off their balance every month, and carrying a balance brings finance charges, sometimes at a very high interest rates.
SallieMae found that almost 40 percent of students chose their first credit card based on direct mail, which is probably why students get credit card offers in the mail. But when the credit card offers flow in, be sure that you read the fine print. Offers of low or no interest rates can disappear, leaving you a debt that climbs beyond your ability to pay it off. What does the first paragraph imply?
| A．Most of the senior students are shocked to see how much they owed. |
| B．Students can only take out loans from credit cards. |
| C．Most of students’ loans come from credit cards. |
| D．Credit cards have a bad effect on college students. |
The underlined part “come in handy” in the third paragraph probably means “_______”.
| A．bring trouble | B．make mistakes | C．be important | D．be useful |
According to SallieMae, what is the possible reason why students get so many credit card offers in the mail?
| A．Many students’ first credit card is based on direct mail. |
| B．It costs the banks little to mail out credit cards. |
| C．Students don’t like to go to the bank to open a credit card account. |
| D．Banks have no other way to let students use their credit cards. |
What is the theme of the third paragraph?
| A．The advantages of using debit cards. |
| B．The similarities between credit cards and debit cards. |
| C．The advantages of using credit cards. |
| D．Credit cards are the most convenient form of payment. |
The largest campaign of killing rats in history is set to poison millions of rats on the sub-Antarctic island of South Georgia. Scientists say the campaign planned for 2013 and 2014 will restore beautiful South Georgia to the position it once held as the world’s most important nesting sites for seabirds.
It was sailors in the late 18th century who unintentionally introduced rats to what had been a fresh environment. “If we can destroy the rats, at least 100 million birds will return to their home on South Georgia,” says Tony Martin, a biology professor at the University of Dundee who was invited to lead the project.
South Georgia is by far the largest island to get rid of animals that destroy native wildlife after being introduced deliberately or accidentally by people. Though rats and mice have done the most damage, cats, foxes, goats, deer, rabbits and other species have been targeted in the campaigns around the world.
South Georgia is seven times the size of New Zealand’s Campbell Island, currently the largest area ever killing rats. The successful war against Campbell Island rats was carried our in 2001 with 132 tons of poison dropped from five helicopters.
“New Zealand pioneered the techniques for ridding islands of rats and in fact our operation on South Georgia is based on New Zealand’s technology.” Says Martin. “Some New Zealanders will be helping our campaign, including our chief pilot, Peter Garden, who was also chief pilot for the projects at Campbell Island and Rat Island, in the Aleutian chain of the north Pacific.”
The second and third stages in 2013 and 2014 will involve dropping as much as 300 tons of poison from the air onto every part of the island where rats might live. It is a huge operation, carried out during the stormy southern autumn when the rats are hungry and the risks of poisoning native wildlife are less than in the spring and summer months. “Ideally we’d do in winter but the weather makes that too risky,” Martin says.
The ecological payback will be priceless. But Martin says, “The full benefits will take decades to arrive, because some of these birds are slow to hatch.”According to the passage, how did the rats appear on the sub-Antarctic island of South Georgia ?
| A．They were attracted there by wildlife. |
| B．They escaped there from Campbell Island. |
| C．They were introduced there by sailors accidently. |
| D．They were brought in by people deliberately. |
Which of the following is True about Peter Garden ?
| A．He is in charge of the campaign on the sub-Antarctic island. |
| B．He will be the only pilot for the project on the sub-Antarctic island. |
| C．He will benefit a lot from the campaign on the sub-Antarctic island. |
| D．He made great contributions to the project at Campbell Island and Rat Island. |
The operation of ridding South Georgia of rats is to carried out in autumn because _________.
| A．the war against Campbell Island rats failed in all seasons except autumn. |
| B．only then do the New Zealanders to help the operation have the spare time. |
| C．rats then need more food and the operation does less harm to native wildlife. |
| D．the poison kills rats more effectively than it does in any other season. |
What can we infer from the passage?.
| A．The campaign of killing rats will benefit the native wildlife in a short time. |
| B．Rats aren’t the only species to be blamed for the disappearance of wildlife. |
| C．The first stage of killing rats on the sub-Antarctic island didn’t make great achievements. |
| D．The campaign in South Georgia will fully follow in the footsteps of that on Campbell Island. |
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