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Making greener choices and encouraging healthy lifestyles can promote your health and benefit the environment.Here are some guidelines to follow:
Choose foods thoughtfully
Americans have never had such a variety or abundance of food to choose from.Besides so many choices, we now hear about our "food print", the amount of land needed to supply one person"s nutritional needs for a year.Do we buy cherry tomatoes from Mexico or tomatoes grown locally in a hothouse? Do.we get the Granny Smiths from the fanners" market or the supermarket? Is organic produce healthier for us and the planet?
These are very complex issues that require analysis of many criteria, including the energy used in producing and transporting the food, as well as the type of soil and methods of raising the food.
Despite the complexities, there are some general guidelines you can follow.For instance, eat less meat or eat low on the food chain.Your doctor may have recommended you to restrict your consume red meat because of its too much fat content.Beyond that, there are environmental reasons, too. Raise food animals contributes substantially to climate change because a meat-based diet requires more land, energy and water than a plant - based one.
Drinking plenty of fluids is significant during hot weather or when exercising.But is bottled water the way to go? You may not think so when seeing the true costs.Based on a survey, manufacturing the 30 - plus billion plastic water bottles can produce more than 2.5 million tons of carbon dioxide and use here times the amount of water in the bottle.Adding in transportation, the energy used comes to over 50 million barrels of oil equivalent (等价物).Consequently, skip the bottled water and drink tap water, both at home and at restaurants.Additionally, bottled water is not necessarily cleaner than tap.
小题1:In Paragraph 2 the author puts forward three questions mainly _____.
A.to prove Americans have less food to choose from
B.to show us the shopping habits of most Americans
C.to indicate Americans tend to buy food from abroad
D.to remind people to reconsider their food purchase
小题2:The doctor recommends eating less red meat partly because _____.
A.it contains too much fatB.it costs a lot in transportation
C.it is too low on the food chainD.it isn"t related to climate change
小题3:According to the text, which of the following is true?
A.Americans all prefer to buy cherry tomatoes from Mexico.
B.The plant - based diet is responsible for the climate change.
C.Americans have a variety of food to choose from.
D.Organic produce is the only choice for Americans.
小题4:Based on the last paragraph, we know that _____.
A.bottled water is cleaner than tap water
B.tap water is economical as well as eco - friendly
C.bottled water is more available than tap water
D.tap water uses one - third the cost of bottled water
小题5:What is the best subtitle for the last paragraph?
A.Skip bottled water, carry tapB.Drink bottled water
C.Produce plastic water bottlesD.Save water resources

答案

小题1:D           
小题1:A
小题1:C
小题1:B
小题1:A
解析

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试题【Making greener choices and encouraging healthy lifestyles can promote your healt】;主要考察你对题材分类等知识点的理解。[详细]
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Bend over, take a deep breath and drink some water! This is just one of the hundreds of tips you might get if you have the hiccups(打嗝). Hiccups are so mysterious. We really don’t know why they start and why they stop.
Everyone has a favorite cure for a case of the hiccups. Some people think that a good scare is necessary to get well. Others eat a teaspoon of sugar. Still others drink a glass of water with a knife in it.
An American man named Jack O’Leary claimed to have hiccupped 160 million times over a period of eight years. He tried 60,000 cures, but none of them worked. Finally he prayed to Saint Jude, the saint of Hopeless cases, and his hiccupping stopped immediately.
It took a British plumber eight months to cure his hiccups. People from all over the world wrote him letters with suggestions for getting well. He tried them all, but the hiccups continued. Finally, he drank a “secret’’mixture someone had sent him. By that evening his hiccups were gone. Why did these cures work for these two men? No one really knows. But people who have studied many cases of hiccups have an idea. Hiccups usually go away if you believe in the cure.
小题1:
________might be the best cure for hiccups.
A.Special pillsB.A spoonful of saltC.Cold waterD.What you believe in
小题2:
The plumber spent________in stopping his hiccups.
A.4 hoursB.2 daysC.8 monthsD.8 years
小题3:
According to the passage, which of the following is TRUE?
A.We know why the hiccups start, but we don’t know how to stop them.
B.Saint Jude is an expert in curing the hiccups.
C.The British plumber drank a secret mixture given by an experienced doctor and then became well.
D.Some people think that a good scare is a cure for a case of hiccups.
小题4:
What is the main idea of this passage?
A.Different ways to stop hiccupsB.What makes hiccups happen
C.How to get hiccupsD.Jack O’Leary’s hiccups

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Exercise is an important part of a healthy life. It reduces your risk of heart attack and is a good way to control body weight. It is also something you can do with other people, which can be great fun. So, it is important to find time to exercise and be healthier. As well as making time to exercises, another way is to build it into the natural rhythm (节奏) of your day.
· Go for a walk on your lunch break.
Try to find at least three different ways and change them throughout the week. It
might even be possible to find a place to walk inside, for those bad weather days.
· Talk to your employers about improving health at work.
Encourage your workers to cycle to and from work. You might also be able to
encourage them to set up a gymnasium. Sell the idea by pointing out that doing so
will improve productivity (生产率), and make workers happy.
· If you are a student.
Go for walks with friends to talk about your studies. Spend some time in the learning
resource centre reading about sport, exercise and health. The more you know, the
more choices you will have about how to be physically active. Most colleges have
sport and exercise programs that students can take part in. Find out which activities
are being held, and try those you think you might enjoy. 
小题1:
Workers are advised to cycle to and from work to ________.
A.make themselves realize the importance of health
B.work better and bring pleasure to themselves
C.make themselves become much stronger
D.reduce the time spent in walking to work
小题2:
When a student wants to do exercise at school, he or she had better ________.
A.take part in all the exercise programs
B.have sports with friends or classmates
C.choose the one that he or she likes
D.choose the same one all the time
小题3:
We can learn from the passage that ________.
A.walk is most suitable for those who work indoors
B.one who knows more about health will be healthier
C.exercising with others will be better for one’s health
D.combining exercise with daily work can save time to keep healthy

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There are many commonly held beliefs about eyeglasses and eyesight that are not proved facts. For example, some people believe that wearing glasses too soon weaken the eyes. But there is nothing to show that the structure (结构) of eyes is changed by wearing galsses at a young age. Wearing the wrong galsses, however, can prove harmful. Studies show that only children can develop loss of sihgt if they have the wrong glasses. We have all heard some of the common myths(荒诞的说法)about how eyesight get bad. Too little light makes the eyes work harder, so they do get tired and strained (过劳). Eyestrain also resulsts from reading a lot, reading in bed, and watching too much television. But, although eyestrain may cause some pain or headaches, it does not harm eyesight all the time. Another myth about eyes is that they can be replaced from one person to another . It is quite difficult to connect aneyeball to a new brain.And it is impossible to replace a whole eyeball to a new person. Only certain parts of the eye can be replaced now. But if we keep clearing up the myths and learning more about the eyes, some day it may be possible to replace a full eyeball.
小题1:
One cause of eyestrain mentioned in the passage is ____.        .
A.wearing eyeglasses too long B.going to the cinemas
C.reading a lotD.not visiting your eye doctor
小题2:
.From this passage one can conclude that    ____.   .
A.doctors are still learning things about eyesightB.headcaches are usually caused by eyestain
C.people should wear glasses as soon as possibleD.people only believe things that are proved facts
小题3:
"Commonly held beliefs" are ____.       .
A.ideas that only low class people believeB.ideas that moet people believe
C.beliefs that have something in commonD.foolish beliefs
小题4:
This passage mainly tells us that ____.
A.people have many wrong beliefs about eyes and sight.
B.there are many things about the body that are not completely understood
C.there are several cuases of eyestrain
D.eyes are very important to people

题型:不详难度:| 查看答案
Bruce Alberts, the former President of the National Academies (USA), has now taken over as Editor-in Chief of Science. Judging by his editorial in this week’s issue Considering Science Education there could be some interesting times ahead in Science offices.
Here’s part of what Bruce has to say about science education…
I consider science education to be critically important to both science and the world, and I shall frequently deal with this topic on this page. Let’s start with a big-picture view. Science has greatly advanced our understanding of the natural world and has enabled the creation of countless medicines and useful devices. It has also led to behaviors that have improved lives. The public appreciates these practical benefits of science, and science and scientists are generally respected, even by those who are not familiar with how science works or what exactly it has discovered.
But society may less appreciate the advantage of having everyone acquire the ways of thinking and behaving that are central to practice of successful science: scientific habits of mind. These habits include a critical attitude toward established claims and a strong desire for logic and evidence. As famous astronomer Carl Sagan put it, science is our best detector (检测器). Individuals and societies clearly need a means to logically test the constant clever attempts to operate our purchasing and political decisions. They also need to challenge what is unreasonable, including the intolerance that led to so many regional and global conflicts.
So how does this relate of science education? Might it be possible to encourage, across the world, scientific habits of mind, so as to create more rational (理性的) societies everywhere? In principle, a strong expansion of science education could provide the world with such an opportunity, but only if scientists, educators, and policy-makers redefine (重新定义) the goals of science education, beginning with college-level teaching. Rather than only conveying what science has discovered about the natural world, as is done now in most countries, we should provide first all students with the knowledge and practice of how to think like a scientist.
小题1: Which of the following is NOT included in the “scientific habits of mind”?
A.A critical attitude toward established claims.B.A strong desire for logic.
C.A clever and active mind.D.A strong desire for evidence.
小题2: What does the underlined phrase “such an opportunity” refer to in the last paragraph?
A.To create more rational societies everywhere.
B.To relate decision-making to science education.
C.To encourage science education around the world.
D.To set right goals of science education.
小题3:In Bruce Alberts’ opinion, which is the most important in science education?
A.Offering all students enough practice to drill their mind.
B.Equipping all students with a thinking model of a scientist.
C.Telling students what science has discovered about the natural world.
D.Advising all students to challenge all established scientific achievements.
小题4:Which of the following would be the best title for this passage?
A.Bruce Alberts, a great science educator
B.Science education and world peace
C.The government and science education
D.Bruce Alberts’ opinion on science education

题型:不详难度:| 查看答案
Ever since they were first put on the market in the early 1990s, gentically mondified (GM, 转基因) foods have been increasingly developed and marketed in many countries in the word,mainly on the basis of their promise to end the worldwide food crisis. But can GM technology solve world hunger problems? Even if it would ,is it the best solutiorr?
Despite what it promiises,GM  technology actually has not increased the production potential    of any corp. In fact
Studies show that the most  crown GM croo.
GM soybeans, has suffered reduced productivity. For instance, a report than analysed nearly two decades of research on mojor GM food crops shows that GM engineering has failed to significantly increase US crop production.
Something else, however, has been on the rise, While GM seeds are expensive, GM companics tell farmers that they will make good profits by saving money on pesticides(***虫剂). On the contrary, US government data show that GM crops in the US have produced an overall increase in pesticide use compared to traditional crops. “ The  promise was that you could use less chemicals and boost production. But nether is true,” said Bill Christison, President of the US National Farm Coalition.
At the same time, the authors of the book World Hunger: Twelve Myths argue that there actually is more than enough food in the world and that the hunger crisis is not caused by production, but by problems in food distribution and politics. These indeed deserve our efforts and money. Meanwhile, the rise in food prices results from the increased use of crops for fuel rather than food, according to a 2008 World Bank report.
As a matter of fact ,scientists see better ways to feed the world. Another World Bank report concluded that GM crops have little to offer to the challenges of worldwide poverty and hunger, because better ways out are available, among which “green” farming is supposed to be the first choice.
小题1:The author develops the second paragraph mainly       .            
A.by classificationB.by comparison
C.by exampleD.by process
小题2:What does the underlined word “boost ” in the third paragraph probably mean?
A.Control.B.EvaluateC.Obtain.D.Increase.
小题3: GM companies promise farmers that they will benefit from ______________.   
A.practicing “green” farmingB.use of less chemicals
C.fair distribution of their cropsD.using more crops for fuel
小题4:Which of the following best describes the attitude of the author towards GM technology?
A.OptimisticB.DefensiveC.DisapprovingD.Casual

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