They are organizing a program to ________people's attention to protecting wild animals.
A.give B.pay C.draw D.have
高三英语单项填空中等难度题
They are organizing a program to ________people's attention to protecting wild animals.
A.give B.pay C.draw D.have
高三英语单项填空中等难度题查看答案及解析
Organic foods are produced according to certain production standards, meaning they are grown without the use of conventional pesticides, or chemical fertilizers and that they were processed without food additives. Livestock are raised without the routine use of antibiotics(抗生素)or growth hormones. In most countries, organic produce must not be genetically modified. They may also be required to be produced using energy-saving technologies and packaged using recyclable materials when possible.
Early consumers interested in organic food would look for non-chemically treated, fresh or minimally processed food.
They mostly had to buy directly from growers: “Know your farmer, know your food” was the motto. Personal definitions of what constituted ( 组成)“organic” were developed through first-hand experience: by talking to farmers, seeing farm conditions, and farming activities. Historically, organic farms were relatively small family-run farms — which is why organic food was once only available in small stores or farmers’ markets.
However, since the early 1990s organic food has had growth rates of around 20% a year. As of April 2008, organic food accounts for 1 - 2% of food sales worldwide. Currently organic food production is legally regulated. Many countries require producers to obtain organic certification in order to market food as organic.
Several studies have attempted to examine and compare conventional and organic systems of farming. The general consensus(共同看法)is that, in the short term, organic farming is less damaging for the following reasons:
● Organic farms do not release synthetic pesticides (合成农药) into the environment — some of which have the potential to harm soil, water and local wildlife.
● Organic farms are better than conventional farms at keeping diverse ecosystems, i.e., populations of plants and insects, as well as animals.
● Organic farms are more energy efficient and produce less waste.
Another report published in March 2008 by The Organic Center claims that organic food is on average 25% more nutritious than conventional food.
However, many critics believe that the increased land needed to farm organic food could potentially destroy the rainforests and wipe out many ecosystems. And organic products cost 10 to 40% more than similar conventionally produced products. Processed organic foods in supermarkets are 65% more expensive.
1. Early consumers knew what food was “organic” by _______.
A. firsthand experience B. the “certified organic” label tag
C. its packaging D. examining its organic certification
2. We can infer that _______.
A. in America, organic food can only be bought in small stores or farmers’ markets
B. organic food is also available in large supermarkets at present
C. organic food is produced by large-scale farms
D. organic food is often beautifully packaged
3. According to the passage, organic food is considered as _______.
A. junk food B. delicious snacks C. green food D. conventional food
4. What is the main idea of the last paragraph?
A. The benefits of organic food. B. The cost of organic food.
C. The disadvantages of organic food. D. Organic food and conventional food.
5. Which of the following statements does NOT support the view that organic farming is more environment-friendly?
A. Organic food is generally thought to be more nutritious.
B. Organic farms are more energy efficient and produce less waste.
C. Organic farms are better than conventional farms at maintaining varieties of plants, insects and animals.
D. Organic farms do not release synthetic pesticides into the environment.
高三英语阅读理解简单题查看答案及解析
The charity organization has launched a TV appeal _______ people should do as much as they could to help those survivors in the earthquake.
A. what B. when C. that D. where
高三英语单项填空简单题查看答案及解析
The organization says almost threefourths of the young people________said they planned to have a summer job.
A.to question B.to be questioned
C.questioned D.questioning
高三英语单项填空简单题查看答案及解析
Few people paid full attention to their health conditions ________ they were seriously ill.
A.when B.if C.until D.after
高三英语单项填空中等难度题查看答案及解析
Modern-day robots are programmed to handle tasks that are normally carried out by humans. They are faster and 1. (accurate) than human workers and never ask for a pay rise or take breaks! Robots are also able to work 2. dangerous situations.
Researchers at the University of Arkansas in the United States say that the mobile robots which have been created already are ideal for the job of hospital attendants. These mobile robots store a 3. (detail) map of the hospital in their memory. The robots’ sensors can detect 4.(barrier) and quickly get out of the way. Although these robots cannot go up and down stairs, they know how 5.(press) a button of an elevator.
Researchers at a Massachusetts’ university are creating the first robot 6.can constantly change its shape according to the task it has to do. These robots are called polymorphic robots. “Polymorphic” means7. ability to take different forms. A 3D printer 8.(place) inside the robot to create the desired shape. The entire process of changing forms in this manner is called the rapid printing technology which is 9.(fair) common in the car industry to produce complex 3D structures quickly. Once the robot has performed 10.(it) task, it can be melted down and recycled into another useful part by the 3D printer.
高三英语语法填空中等难度题查看答案及解析
Modern people are paying more attention to exercise and many celebrities are leading the trend, while in ancient China there were also many fitness lovers.
Lu You: chosho
As a noted productive poet, Lu You from the Song Dynasty wrote more than 20,000 poems in his lifetime. According to historical records, he lived to 85 years old, the longest living poet in the Song Dynasty.
However, Lu You was weak as a child. During his later years, Lu You started the body building called chosho. Chosho was quite popular in ancient times, which was not roaring or whistling, but an elegant, serious and skillful health method. People opened their body, breathed in deep and then breathed out with a long and loud cry in rhyme.
Su Dongpo: long run, five kilometers per day
The great Song Dynasty poet Su Dongpo, or Su Shi preferred to take long runs, and he thought that only by moving your body regularly could you have a strong body.
He would slow down when he breathed hard, and speed up when his breath balanced. Su Dongpo would run until he was sweaty, hot, blood circulating and limbs feeling refreshed.
Huyan Zan: cold bath
There was an annual festival in November during the early Tang Dynasty (618-907)called "Pouring cold", where a group of strong men, nearly bare, sang and danced in the street while crowds poured cold water on them. The festival, a sacrifice to god, was thought to be helpful to body building.
During the Song Dynasty, Huyan Zan recovered the tradition by removing the singing and dancing parts and keeping the pouring cold water part, as a way to exercise his kids' physical bodies.
1.What would Lu You do when doing chosho exercise? ______
A.Scream after opening his body.
B.Make a long and loud roar.
C.Whistle for a long time.
D.Breathe deep and shout with a rhyme.
2.While Su Dongpo was running, he ______ .
A.adjusted his running speed according to his breath
B.kept running at a high speed all the way
C.would run until his body was tired
D.practiced Qigong during the course of running
3.Why did Huyan Zan have his kids do a cold bath? ______
A.To teach them the hardship of life.
B.To honor his general-inherited family.
C.To make them have a healthy body.
D.To expect them to have a long life.
高三英语阅读理解简单题查看答案及解析
People won’t pay attention to you when they still have a lot of ideas of their own crying _______expression.
A. from B. over C. with D. for
高三英语单项填空中等难度题查看答案及解析
People won’t pay attention to you when they still have a lot of ideas of their own crying _______ expression.
A. from B. over
C. with D. for
高三英语单项填空中等难度题查看答案及解析
Online programs to fight depression are already commercially available. While they sound efficient and cost-saving, a recent study reports that they are not effective, primarily because depressed patients are not likely to engage with them or stick with them.
The study looked at computer-assisted cognitive (认知的)behavioral therapy ( CBT) and found that it was no more effective in treating depression than the usual care patients receive from a primary care doctor.
Traditional CBT is considered an effective form of talk therapy(治疗)for depression, helping people challenge negative thoughts and change the way they think in order to change their mood and behaviors. However, online CBT programs have been gaining popularity, with the attraction of providing low-cost help wherever someone has access to a computer.
A team of researchers from the University of York conducted a randomized(随机的)control trial with 691 depressed patients from 83 physician practices across England. The patients were split into three groups: one group received only usual care from a physician while the other two groups received usual care from a physician plus one of two computerized CBT programs. Participants were balanced across the three groups for age, sex, educational background, severity and duration of depression, and use of antidepressants(抗抑郁药).
After four months, the patients using the computerized CBT programs had no improvement in depression levels over the patients who were only getting usual care from their doctors.
“It's an important, cautionary note that we shouldn't get too carried away with the idea that a computer system can replace doctors and therapists, says Christopher Dowrick, a professor of
primary medical care at the University of Liverpool. “We do still need the human touch or the human interaction, particularly when people are depressed. ”
Being depressed can mean feeling “lost in your own small, negative, dark world," Dowrick says. Having a person, instead of a computer, reach out to you is particularly important in combating that sense of isolation. “When you’re emotionally vulnerable (脆弱的),you're even more in need of a caring human being," he says.
1.Why has online CBT programs been increasingly popular?
A.Because of their effectiveness in fighting depression.
B.Because of their easy and inexpensive access by patients.
C.Because of their recommendation by primary care doctors.
D.Because of their attraction of changing mood and behavior.
2.What is the conclusion of the experiment done by researchers at the University of York?
A.Online CBT programs are as ineffective as regular care from physicians.
B.The combination of traditional CBT and computerized CBT is most effective.
C.The online programs are more advanced than regular care from physicians.
D.Online CBT programs have no advantages over regular care from physicians.
3.Which of the following statement can best convey Professor Dowrick's advice on online programs?
A.Their use should be encouraged by doctors.
B.They should not be ignored in primary care.
C.Their effectiveness should not be overestimated(高估).
D.They should be used to help people touch these patients.
4.What is more important to an emotionally vulnerable person?
A.A positive state of mind. B.An appropriate therapy.
C.An advanced CBT program. D.A caring human being.
高三英语阅读理解中等难度题查看答案及解析