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For all dinner tables, a glass of milk seems to be a must. At least it was when I was growing up. It is widely believed that milk is a must in building strong bones and teeth. There’s no doubt that dairy products, especially milk, are high in protein and calcium, and Vitamin D and Vitamin A are added to most milk products.
While it’s well known that our bones need calcium, some studies suggest that high calcium intake doesn’t necessarily lower a person’s risk for fractures(骨折). A Harvard study found that people who drank two or more glasses of milk had no greater protection from breaking a bone than those who drank a glass or less a week.
There is no doubt that we need calcium. Some anti-dairy supporters claim dairy products can lead to heart disease. Much of this claim is based on high-fat dairy products, like cheese and cream, which may indeed lead to some health problems. Some studies have linked high milk intakes with a risk of prostate cancer; this seems also to be caused by high-fat dairy products, but not by dairy products in general.
Although milk has always been regarded as the most important thing we need for our bones, one of the most important things in strengthening bones and reducing the risk of osteoporosis(骨质疏松)is weight-bearing exercise, such as jogging, walking, and weight lifting.
Perhaps we should think of dairy products as less like a nutrient and more like a food. If you like it, eat it. If not, find something else to eat. Some claims may not be completely true. When I eat cream, I’m not thinking about calcium, protein, or any such thing. I’m thinking it is delicious.
【小题1】What is the best title for this passage?
A.Milk: is it really necessary for children? | B.The disadvantages of drinking milk. |
C.Milk causes health problems. | D.Milk: is it really good for the body? |
A.avoid milk with Vitamin D and Vitamin A added |
B.spend some time exercising |
C.take in as much calcium as possible |
D.drink more than two glasses of milk every day |
A.milk is the most important thing that we need for our bones |
B.children should not be permitted to eat cream |
C.milk should be considered more like a food than a nutrient |
D.children should drink milk whether they like it or not |
A.Some dairy products may harm our health. |
B.Milk has the highest level of protein of any food. |
C.The writer seldom drank milk when he was young |
D.People who drink milk every day are at a high risk of getting a heart disease. |
US bees operation keeping groups have been attacked seriously by so called Colony (群体)Collapse Disorder.Almost 1/2 of their worker bees have vanished during the past season.This disorder has also been reported in Israel, Europe and South America.Bees fly away from the hive and never return.Sometimes they are found dead; other times they are never found.Many crops and trees depend on pollination^^}) by bees to help them grow.
A new report says a virus may be at least partly responsible for the disorder in honey bee colonies in the United States.This virus is called Israeli acute paralysis virus.It was first found in Israel in 2004.lan Lipkin at Columbia University in New York and a team reported the new findings in Science Magazine.Doctor Lipkin says the virus may not be the only cause.He says it may work with other causes to produce the collapse disorder.
The team found the virus in colonies with the help of a map of honey bee genes that was published last year.They examined thirty colonies affected by the disorder.They found evidence of the virus in twenty-five of them, and in one healthy colony.The next step is further testing of healthy hives.
The researchers suggested that the United States may have imported the disorder in bees from Australia.They say the bees may carry the virus but not be affected.
The idea is that unlike many American bees, the ability of Australian bees to fight disease has not been hurt by the varroa mite.This insect attacks honey bees, which could make the disorder more likely to affect a hive.Australian bee producers object to these suspicions.
And some researchers suspect that bee production in the United States is down mainly because of the weather.Honey bees gather nectar from flowers and trees.The sweet liquid gives them food and material to make honey.But cold weather this spring in the Midwest reduced the flow of nectar in many flowers.Many bees may have starved.Dry weather in areas of the country could also be playing apart.
Wayne Esaias is a NASA space agency scientist who keeps bees in his free time.He lives in central Maryland, where he has found that flowers are blooming a month earlier than they did in 1970, which may be partly responsible for the disorder. Wayne Esaias is organizing a group of beekeepers to document nectar flow around the country.
【小题1】What is the author’s attitude toward the cause of this disorder?
A.Doubtful. | B.Neutral. | C.Supportive. | D.Negative. |
A.studying the published Science Magazine |
B.researching the causes of bee death |
C.examining some affected colony |
D.exploring a connected chart |
A.presenting the effect and analyzing its causes |
B.making comparisons between two countries |
C.providing data and examples |
D.following the time order |
A.Three | B.Four | C.Five | D.Six |
A.American bees are more likely to defend themselves against hurt from other insects than Australian ones |
B.A collection of plants production in U.S ay be influenced by the bee disorder |
C.Israeli acute paralysis virus should be responsible for the disorder |
D.The solution to the disorder will be found eventually |
A report by the Consumer Electronics Association says electronics are among the most popular gifts being bought this holiday season.
Jim Barry is a spokesman for the Consumer Electronics Association. He says the CEA study found that electronics represent three of the top five things on its "holiday gift wish list" this year.
JIM BARRY: "Notebook computers are at the top, followed by iPads and then e-readers. IPad is a touch-screen tablet computer and that's really the big player in that category."
The computer company Apple began selling its small, touch-screen computers in April. People use the touch-screen computers to surf the Web, write e-mails, watch movies and read books. Since the iPad's release earlier this year, several other companies have come out with their own tablet computers just in time for Christmas.
A report from the e-Marketer research group predicts that worldwide, tablet sales will reach more than eighty-one million in two thousand twelve. Still, Jim Barry says these devices are facing tough competition this year from another Christmas favorite.
JIM BARRY: "Another hot category right behind that are the e-readers. So you can read on an iPad or a touch-screen tablet, but the e-book readers are less expensive. The Kindle is the market leader there, from Amazon. But you also have the Nook from Barnes and Noble and the e-reader from Sony. And you have more and more of those e-readers coming into the market as well."
The Consumer Electronics Association report found that iPod music players are also in high demand this holiday season.
But not all of the things on the holiday gift wish list involved electronics. Clothes, cars and motorcycles also made the list. So did family togetherness and good health. And the one thing that people wanted most?
JIM BARRY: "At the top of the list was peace and happiness."
That is also our wish for you this holiday season.
【小题1】The best title of the passage is .
A.How to choose a suitable gift for Christmas |
B.iPads, E-Readers, Notebook Computers top wish lists |
C.What we should buy for our kids this holiday season |
D.How modern technology is changing the way people relate |
A.surf the Web and write e-mails |
B.watch movies and read books |
C.surf the Web and contact others on phone |
D.surf the internet and use it as an e-reader |
A.iPads are the most popular gift among all the electronics. |
B.Only the computer company Apple releases a touch-screen tablet computer. |
C.All of the things on the holiday gift wish list are electronics. |
D.There are more and more kinds of e-readers in the market. |
A.notebook computers | B.iPod music players |
C.touch-screen tablet computer | D.e-book readers |
A.people value peace and happiness more than anything else |
B.clothes, cars and motorcycles are also popular gifts for Christmas |
C.family togetherness and good health don't make the list |
D.JIM BARRY also sends their wish for us this holiday season |
One would have to be a fool to overlook (忽视)the importance of using positive(积极的) thinking for you rather than allowing negative thinking to work against you. In recent years, research in psychopharmacology (精神药理学) has proved what many people have known over the centuries: a positive attitude is good for you, good for your health, good for your wealth, good for everything. Researchers found that a positive attitude produces a specific chemical reaction which makes people feel better, while negative thinking results in a decline of hormone (荷尔蒙) and shuts down the immune (免疫的) system. This leads to illness and depression. Positive thoughts will make you feel better. Even if you must begin by literally forcing yourself to be positive (faking it, so to speak), it will become contagious (会传播的) and the positive thoughts will generate nice little chemicals and good feelings which will reinforce the positive thoughts.
For example, if you force yourself to smile or laugh, even when you don't feel like smiling or laughing, if you keep at it for a few minutes, you will soon feel like it. Feelings can generate (导致)thoughts, but thoughts can also generate feelings. Control your thoughts and you can control your feelings. Positive thinking is important in all aspects of our lives. There is probably no single factor more important in determining your success in achieving your career objectives than your own attitude.
It's often been said that in the land of the blind, the one-eyed man is king. And in the office of militant (好战) negativism, the positive workers shine like gold. You cannot control external events, but you can learn to control your reaction to those events and thereby have a positive attitude and be happy. This vital key to success is totally within your control. Use it.
【小题1】We can infer from the passage that .
A.positive thinking can cure you of your diseases |
B.positive thinking can easily be generated by anyone |
C.a decline of hormone may cause you to be depressed |
D.a specific chemical reaction is the cause of negative thinking |
A.Feeling and thoughts can generate each other. |
B.It's easier to control thoughts than to control feelings. |
C.Your success depends wholly on your attitude. |
D.Keeping smiling will surely make you successful. |
A.control your feeling to what is happening to you |
B.be king in your office |
C.pay no attention to what is going on around you |
D.take positive attitude in the office of militant negativism |
A.The Bad Effect of Negative Thinking | B.Why Should People Think |
C.Thinking: The Vital Way | D.Positive Thinking Benefits People |
A Low-Carbon Economy (LCE) or Low-Fossil-Fuel Economy (LFFE) is an economy which has a smallest output of greenhouse gas (GHG) release into the atmosphere, but specifically refers to the greenhouse gas CO2. Recently, most of scientific and public opinion has come to the conclusion that there is such an accumulation of GHG (especially CO2) in the atmosphere due to human-related activities that the climate is changing. The over-concentration of these gases is producing global warming that affects long-term climate, with negative impacts on humanity in the foreseeable future. Globally performed LCEs therefore, are proposed as a means to avoid catastrophic climate change, and as a forerunner to the more advanced, zero-carbon society and renewable-energy economy.
Some nations are low-carbon societies which are not heavily industrialized or populated. In order to avoid climate change at any point in the future, all nations considered carbon-thick societies and societies which are heavily populated, should become zero-carbon societies and economies. Several of these countries have promised to become ‘low carbon’ but not entirely zero carbon, and claim that release will be cut by 100% by offsetting release rather than stopping all release. In other words, some release will continue which will be offset, so they are not low-release.
Nations seek to become low-carbon economies as part of a national global warming reduction strategy. A comprehensive strategy to manage global warming is carbon neutrality, geoengineering and adaptation to global warming.
Nuclear power, or, the proposed strategies of carbon collection and storage (CCS) have been proposed as the primary means to achieve a LCE while continuing to exploit non-renewable resources; there is concern, however, with the matter of spent-nuclear-fuel storage, security and the uncertainty of costs and time needed to successfully carry out CCS worldwide and with guarantees that the stored release will not leak into the atmosphere. Alternatively, many have proposed renewable energy should be the main basis of a LCE, but, they have their associated problems of high-cost and inefficiency; this is changing, however, since investment and production have been growing significantly in recent times. Furthermore, regardless of the effect to the atmosphere by GHG releases, the growing issue of peak oil may also be reason enough for a change to a LCE.
63. Low-carbon economy is encouraged for the following reasons except that ______.
A. too much greenhouse gas CO2 is released
B. the over-concentration of greenhouse gases is producing global warming
C. it can avoid catastrophic climate change
D. low carbon and zero carbon nations and societies claim for it
64. The underlined word in the first paragraph probably means ______.
A. warning B. pioneer C. symbol D. guide
65. According to the passage, which of the following is NOT true?
A. Nuclear power could act as one of the primary means to achieve a LCE.
B. There’s worry about spent-nuclear-fuel storage, security and the uncertainty of costs.
C. The stored release will be likely to leak into the atmosphere.
D. Renewable energy tends to become the only means to achieve a LCE.
66. From the last paragraph, we can infer that the writer’s attitude toward the proposal of adapting renewable energy is ______.
A. negative B. positive C. self-confident D. doubtful