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Health experts have long worried about the increasing rate of obesity in kids. It’s an important concern: Being very overweight or obese during childhood can lead to serious problems normally seen in adults, such as diabetes and high blood pressure. Poor diets and a lack of exercise are usually the causes. But would you ever have imagined there might be a connection between the bacteria that lived in your guts (内脏)when you were a baby and the chance that you would become overweight?
Scientists in Finland recently found just such a link. In a recent study, they showed that overweight kids had different species of bacteria living in their guts.
You probably think of bacteria only as germs that can make you sick. While it’s true that some bacteria can make people ill, your body actually depends on some types of bacteria to help you digest food and extract nutrients from it. These “good” bacteria live in your guts, where they process the food you eat.
Human babies get these bacterial helpers from their moms. When a baby is born, some of the bacteria in the mother move into the baby’s body. Growing babies get additional “good” bacteria from the milk their mothers produce. And it turns out the bacteria might play an important role in regulating weight just six years later.
So how could these bacteria affect weight? The researchers still haven’t tested that question, but future tests might lead to an answer.
小题1:The “link” in Paragraph 2 refers to the relationship between _______.
A.bacteria and the chance of being overweightB.obesity and diabetes
C.diets and the chance of being overweightD.bacteria and exercise
小题2:Which of the following is NOT the function of “good” bacteria?
A.Helping to digest food.B.Helping to take nutrients from food.
C.Helping to regulate weight.D.Making a person ill.
小题3:The purpose of writing this passage is to _______.
A.introduce the role of bacteria in children’s weight
B.analyze the influence of obesity on kids
C.give advice on how to lose weight quickly
D.explain the function of bacteria in foods

答案

小题1:A
小题1:D
小题1:A
解析
小题1: A。从第一段的最后一句可知答案是A。
小题1: D。D项不属于“good” bacteria的作用。
小题1: A。本文作者主要介绍了bacteria对于孩子体重状况所起的作用,因此A项符合作者意图。
核心考点
试题【Health experts have long worried about the increasing rate of obesity in kids. I】;主要考察你对题材分类等知识点的理解。[详细]
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Coffee experts are willing to pay large sums of money for high-quality coffee beans. The high-end beans, such as Kona or Blue Mountain, are known to cost extraordinary sums of money. Then there is Kopi Lowak (translated as “Civet Coffee”), the world’s most expensive coffee, which sells for as much as US $50 per quarter-pound.
This isn’t particularly surprising, because approximately 500 pounds a year of Kopi Lowak make up the entire world supply. What is surprising is why this particular coffee is so rare. In fact, it’s not the plants that are rare. It’s the civet droppings. That’s right, the civet droppings—the body waste of the palm civet. Coffee beans aren’t Kopi Lowak until they’ve been digested(消化) and come out in the body waste of the palm civet.
Palm civets are tree-dwelling, raccoon-like little animals, native to Southeast Asia and the Indonesian islands. They also have a love for coffee cherries. According to Kopi Lowak suppliers, palm civets eat the fruit whole, but only digest the outer fruit, leaving the beans intact(完好无损). While the beans are not destroyed, they undergo a transformation in the animal’s body. A chemical substance in the digestive system of the palm civet causes some changes to the beans to give them a unique flavor(味道). However, this is not the only explanation why coffee beans retrieved from civet droppings have a special flavor all their own. Another possible reason is that palm civets have an unfailing instinct for picking the coffee cherries at the peak of their ripeness.
Kopi Lowak is reported to have a character in taste unlike any other coffee, complex with caramel undertones and an earthy flavor. Currently, most of the world’s supply of Kopi Lowak is sold in Japan, though a few US markets are also starting to stock up on Kopi Lowak.
小题1:What does “This” in the second paragraph refer to?
A.Civet Coffee.B.Blue Mountain coffee.
C.The high price of Kopi Lowak.D.The unique taste of Kona.
小题2:Why is Kopi Lowak expensive?
A.There is a very limited supply of the beans.
B.The coffee trees that grow the beans are scarce.
C.It takes a long time for the coffee beans to ripen.
D.Only a few experts know how to produce the beans.
小题3:What is the main point discussed in the third paragraph?
A.Why palm civets like the coffee beans.
B.Where Kopi Lowak is mainly harvested.
C.What chemicals are found in the civet’s digestive system.
D.How palm civets change coffee fruit to Kopi Lowak beans.
小题4:Which of the following statements is true, according to the passage?
A.Little palm civets eat only the outer layer of the coffee cherries.
B.Palm civets somehow know the right time when the coffee fruit ripens.
C.Kopi Lowak is most popular in Southeast Asia and the Indonesian islands.
D.Kona and Blue Mountain are the most expensive coffees but only of average quality.

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Have you ever stayed up late? If so, you know that not getting enough sleep can leave you tired and grumpy . Not sleeping enough can also make it harder to think clearly the next day.
Sleep experts have long known that getting a good night’s sleep is important.
It helps kids perform their best during the day. A recent study shows that sleep helps improve problem--- solving skills and creative thinking.
For the study, two groups of volunteers answered a math problem. The group that slept for eight hours solved the problem correctly more often than the group that did not get enough sleep.
While you sleep, your brain is busy doing its “homework”. It sorts out information from your day. Getting enough sleep each night can boost your brainpower. That will help you do your best in school. Experts say that, in return, can lead to better grades.
小题1:What is the best title for the passage?
A.Too Much SleepB.It’s Homework Time
C.Sleep to SucceedD.Math Problems
小题2:The underlined word “boost” in paragraph 5 means ________.
A.reduceB.improve
C.disturbD.worsen
小题3:Why is sleep important?
A.It can improve problem-solving skills and creative thinking
B.It will help you do your best in school
C.It helps your brain sort out information from your day.
D.All of the above
小题4: What did the results of a recent sleep study show?
A.People who sleep enough are good at math
B.Sleep is important for learning
C.If you get enough sleep, you don’t have to do your homework
D.Adults need more sleep than kids

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Hilton English Language Center
Information for New Students
CLASS TIME: 9:00a.m.---10:30a.m., 11:00a.m.---12:30p.m., 1:30p.m.---3:00p.m.. The Language Center is open from Monday to Friday. Each class has one afternoon free per week. On the first day, go to the lecture hall to check your timetable.
SELF-ACCESS: The language laboratory (Room 1110) is open Monday to Friday from 3:15p.m. to 5:00p.m. for all full-time students.
You can learn how to use computers for language games or word-processing(文字处理). There are tapes for students to borrow to practice their English. Go in and ask the teacher to show you. If you plan to take public examinations, there are dictation(听写)and listening comprehension tapes for you to practice with. There are cloze exercises on the computers. Ask your class teacher for a list of past exam essays. Students can borrow tapes to take home but they must be returned after two days.
ATTENDANCE(出勤):All students are expected to attend classes regularly. Students who do not attend classes will be reported to OSS. Eighty percent attendance is required for students to receive their certificates(证书)when they finish their courses. It is also required by OSS for an extension to your visa.
BOOKS: If students are given course books, the books are their responsibility. If a book is lost, the student will be expected to pay for it.
If students wish to buy books, there is a bookshop in the college specializing in English books (Room 3520).
小题1: When do classes begin and end on a full day?
A.9:00a.m. ---1:30p.m.B.9:00a.m. ---3:00p.m.
C.9:00a.m. ---3:15p.m.D.3:15p.m. ---5:00p.m.
小题2: How many afternoons does a class meet each week?
A.Two.B. Three.C.Four.D.Five.
小题3:Which of the following statements is TRUE?
A.No teachers are in the language lab.
B.90% attendance is required for the students.
C.Books can’t be taken out of the center.
D.Students can prepare for exams by listening to tapes.
小题4: Timetable can be seen in _____.
A.the lecture hallB.Room 3520C.the classroomD.Room 1110

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Healthy Diet“An apple a day keeps the doctor away.” Similarly, if we drink a little more water ever day, we may find that we need to go to the doctor a lot less often. A healthy diet is made up of water and a great many different kinds of foods. We know that healthy foods like fruits, vegetables and fish, are important as they provide us with energy and fibre, without giving us too much fat and sugar. But why is water important?
The human body needs water to survive. Water is important as it carries poisons and waste out of our bodies. However, doctors advise us to drink plenty of water, much more than the small amount we need to stay alive.
Some doctors believe that water is important for our health in all kinds of ways. They believe that a great many illnesses and health problems stars as a result of dehydration—a lack(缺少) of water in the body. Most people are dehydrated at least some of time, although they probably don’t know it. It is surprising to learn that if we feel thirsty, we are already in the first stages of dehydration. In fact, we are advised to drink water before we feel thirsty.
These doctors think that health problems such as headaches, high blood pressure and asthma could be helped if people drink more water. They also believe that drinking more water can help people who are overweight. Water contains no calories so it will not make us put on weight. If we drink water, we will probably drink less sugary soft drinks such as Coca-cola. Doctors also believe that drinking more water may stop people from overeating. They say that many people think that they are hungry when they are, in fact, thirsty. Doctors suggest, therefore, that we eat less food and drink more water.
There are still many health problems that cannot be solved by drinking water, so we should not stop going to seeing the doctor completely. However, if we make a decision to drink water every day, we may find that we need to go to the doctor a lot less often.
小题1:We need _____for a healthy diet.
A.fibreB.foodC.waterD.Water and different foods
小题2:From the text, we know water can carry_________.
A.energy and fibre in our bodies
B.fruit, vegetables and fish in our bodies
C.sugar and fat out of our bodies
D.poisons and waste out of our bodies
小题3:Some doctors think that________.
A.people eat too much sugar
B.water is not important for our health
C.we should go to the doctor less often
D.some health problems are caused by a lack of water
小题4: Lack of water caused people to put on weight too much because_______.
A.they think they are hungry and eat too much
B.they think they are thirsty and eat less
C.water has no calories
D.it makes them hungry

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Do you have a sore throat, a running nose and a headache? Do you keep coughing and sneezing? If you do, the chances are that you have a cold or perhaps flu--- but which one? Although both colds and flu are caused by viruses, they are very different illnesses.
Colds, which usually last about a week, affect the nose most. They commonly cause a runny nose and sneezing. Sometimes, they cause a headache, a cough and slightly aching muscles.
Flu is much more serious illness and is caused by different group of viruses. People with flu usually get all the symptoms described above. However, they also get a high fever, a dry cough and much worse aching. Fever is one of the typical symptoms of the flu for all ages. The symptoms also last much longer. Sometimes they don’t disappear for at least two weeks.
Flu can be a deadly disease. The elderly, who are weaker and less healthy than most younger people, can die from flu. This is one reason why old people are advised to have a flu injection before the start of winter when flu is most common. This injection is inexpensive and definitely worth it.
If you have a cold or flu, you must always deal with used tissues carefully. Don’t leave dirty tissues on your desk or on the floor. Someone else has to pick these up and viruses could be passed on. And finally, remember to cover your nose and mouth when you sneeze!You don’t want to see the small drop of liquids blown out of your nose and mouth when you sneeze, do you? Disgusting, eh? Now you can understand why it’s a good idea to cover your nose and mouth when you sneeze!
小题1: In paragraph 4, we learn that ______.
A.flu injection can cause deathB.most old people die from flu
C.flu is most common in summerD.flu can kill old people easily
小题2:Dealing with used tissues properly is important because ______.
A.it helps keep your classroom tidyB.people hate picking up dirty tissues
C.it prevents the spread of colds and fluD.picking up lots of tissues is hard work
小题3:Which of the following statements is TRUE according to the passage?
A.Both colds and flu last the same time.
B.Both colds and flu can be prevented by injection.
C.Both colds and flu are caused by the same viruses.
D.Both colds and flu have an aching symptom.
小题4:Which is probably the best title for the passage?
A.Cold or Flu?B.The Different Symptoms of a Cold and Flu
C.Prevention Is Better Than CureD.Cover Your Nose and Mouth When Sneezing

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