Is It Worth Buying Organic Food?
Organic food, grown without artificial chemicals, is increasingly popular nowadays. Consumers have been willing to pay up to twice as much for goods with organic labels (商標(biāo)). However, if you think paying a little more for organic food gets you a more nutritious and safer product, you might want to save your money. A study led by researchers at Stanford University says that organic products aren't necessarily more nutritious, and they're no less likely to suffer from disease-causing bacteria, either.
The latest results, published in the Annuals of Internal Medicine, suggest that buyers may be wasting their money. "We did not find strong evidence that organic food is more nutritious or healthier," says Dr. Crystal Smith-Spangler from Stanford. "So consumers shouldn't assume that one type of food has a lower risk or is safer."
For their new study, Smith-Spangler and her colleagues conducted a review of two categories of research, including 17 studies that compared health outcomes between consumers of organic against traditional food products, and 223 studies that analyzed the nutritional content of the foods, including key vitamins, minerals and fats.
While the researchers found little difference in nutritional content, they did find that organic fruit and vegetables were 20% less likely to have chemicals remaining on the surfaces. Neither organic nor traditional foods showed levels of chemicals high enough to go beyond food safety standards. And both
organic and traditional meats, such as chicken and pork, were equally likely to be harmed by bacteria at very low rates. The researchers did find that organic milk and chicken contained higher levels of omega-3 fatty acids, a healthy fat also found in fish that can reduce the risk of heart disease. However, these nutritional differences were too small, and the researchers were unwilling to make much of them until further studies confirm the trends.
Organic food is produced with fewer chemicals and more natural-growing practices, but that doesn't always translate into a more nutritious or healthier product. The U. S. Department of Agriculture (USDA) states that "whether you buy organic or not, finding the freshest foods available may have the biggest effect on taste." Fresh food is at least as good as anything marketed as organic.
1.The new research questions whether organic food __________.
A. should replace traditional food
B. has been overpriced by farmers
C. is grown with less harmful chemicals
D. is really more nutritious and healthier
2.Smith-Spangler and her colleagues found that __________.
A. organic food could reduce the risk of heart disease
B. traditional food was grown with more natural methods
C. both organic and traditional food they examined were safe
D. there was not a presence of any forms of bacteria in organic food
3.Which of the following is relatively healthier according to the passage?
A. Organic chicken and pork.
B. Organic milk and chicken.
C. Traditional chicken and pork.
D. Traditional fruit and vegetables.
4.What is the author's attitude toward organic food?
A. Sceptical. B. Neutral. C. Unconcerned. D. Approving.
科目:高中英語 來源:狂刷01 Unit 1 Warming Up 題型:單項填空
(2016 • 江蘇卷)Parents should actively urge their children to _________ the opportunity to join sports teams.
A. gain admission to B. keep track of
C. take advantage of D. give rise to
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科目:高中英語 來源:精做01 細(xì)節(jié)理解題 真題精做 題型:閱讀理解
Passage1(2017·全國新課標(biāo)I,A)
體裁 | 話題 | 詞數(shù) | 難度 | 建議時間 |
應(yīng)用文 | Pacific Science Center | 231 | ★★☆☆☆ | 5分鐘 |
Pacific Science Center Guide
◆Visit Pacific Science Center’s Store
Don’t forget to stop by Pacific Science Center’s Store while you are here to pick up a wonderful science activity or souvenir to remember your visit. The store is located(位于) upstairs in Building 3 right next to the Laser Dome.
◆Hungry?
Our exhibits will feed your mind, but what about your body? Our café offers a complete menu of lunch and snack options, in addition to seasonal specials. The café is located upstairs in Building 1 and is open daily until one hour Pacific Science Center closes.
◆Rental Information
Lockers are available to store any belongs during your visit. The lockers are located in Building 1 near the Information Desk and in Building 3. Pushchairs and wheelchairs are available to rent at the Information Desk and Denny Way entrance. ID required.
◆Support Pacific Science Center
Since 1962, Pacific Science Center has been inspiring a passion(熱情) for discovery and lifelong learning in science, math and technology. Today, Pacific Science Center serves more than 1.3 million people a year and brings inquiry-based science education to classrooms and community events all over Washington State. It’s an amazing accomplishment and one we cannot achieve without generous support from individuals, corporations, and other social organizations. Visit pacificsciencecenter.org to find various ways you can support Pacific Science Center.
1.Where can you buy a souvenir at Pacific Science Center?
A. In Building 1.
B. In Building 3.
C. At the Laser Dome.
D. At the Denny Way entrance.
2.What does Pacific Science Center do for schools?
A. Train science teachers.
B. Distribute science books.
C. Inspire scientific research.
D. Take science to the classroom.
3.What is the purpose of the last part of the text?
A. To encourage donations.
B. To advertise coming events.
C. To introduce special exhibits.
D. To tell about the Center’s history.
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科目:高中英語 來源:河南省林州市2018屆高三7月調(diào)研考試英語試卷 題型:完形填空
Last week I talked with Mandy, a mother of a young teenager in my class. She was telling me how ______ it was for her son at school, because he is in a school uniform that doesn’t ______ him as he’s outgrown it. Since her husband and she both lost their ______ in the last couple of years, they have been searching and interviewing persistently (堅持不懈地). ______, unfortunately they are still out of work.
Now I know the fact that they just can’t ______ a new one. She wiped away ______ as she told me sadly that she is ______ trying to buy a new shirt, then trousers, then… then shoes.
I know her well enough to know that she doesn’t ______ want to get my sympathy or help. She’s ______ asked for anything from me, either. She was just telling me the honest ______. I felt moved to go to the ______ to draw money out from my own account through ATM and come back with a bit of savings of my own ______ I believe I can spare. I told her to just go and buy the ______, and not to tell anyone that I did this but her husband.
I also made it clear to her that nothing is ______ —no payback, nothing. It’s a gift done, so I can enjoy ______, and that is all I need right now. I told her that she was also doing me a favor, ______ she let me know everything. She was so ______ for what I had done for her that she was moved to tears, but I really just feel happy that her boy won’t continue to be ______ for his ugly uniform. I know what that is like, and as a victim of school bullying (恃強(qiáng)欺弱) when young, I can say ______ it hurts for a long time. I felt so ______ to be able to do this!
1.A. sick B. hungry C. cold D. bad
2.A. disappoint B. embarrass C. fit D. challenge
3.A. work B. son C. furniture D. education
4.A. Therefore B. However C. Otherwise D. Besides
5.A. describe B. miss C. afford D. find
6.A. tears B. sweat C. stains D. dirt
7.A. quickly B. slowly C. suddenly D. immediately
8.A. patiently B. worriedly C. secretly D. deliberately
9.A. ever B. only C. even D. never
10.A. standard B. benefit C. truth D. answer
11.A. classroom B. hospital C. bank D. shop
12.A. which B. where C. what D. why
13.A. book B. uniform C. food D. car
14.A. expected B. regretted C. hidden D. valued
15.A. studying B. traveling C. succeeding D. helping
16.A. but B. because C. unless D. even if
17.A. hateful B. calm C. careful D. grateful
18.A. teased B. praised C. scolded D. motivated
19.A. for consideration B. for sure C. for fun D. for example
20.A. sorry B. sad C. good D. nervous
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科目:高中英語 來源:遼寧省2017屆高三第五次模擬考試英語試卷 題型:短文改錯
假定英語課上老師要求同桌之間交換修改作文,請你修改你同桌寫的以下作文。文中共有10處錯誤,每句中最多有兩處。錯誤涉及一個單詞的增加、刪除或修改。
增加:在缺詞處加一個漏詞符號(^),并在其下面寫出該加的詞。
刪除:把多余的詞用斜線(\)劃掉。
修改:在錯的詞下畫一橫線,并在該詞下面寫出修改后的詞。
注意:1.每處錯誤及其修改均僅限一詞;
2.只允許修改10處,多者(從第11處起)不計分。
I used to be a physician at a hospital. I often treated children who had poisoned by medicine with older family members. The children didn’t know the medicine was danger; they just knew it tasted sweetly. Children easily open the bottle what we now use in China.
Some days before, I talked about medicines with an American. He showed me a sort of plastic bottle. The design was quite simple and I’m sure our Chinese factories can produce these bottles. The top of the bottle can be opened by pressing down on them while turning, which is difficult for most young children to do so, though grown-up can open these bottles very easily. I’m certain that the expense of making such tops would be very small. As a doctor, I’d love to see this doing. And most parents would be grateful.
Sincerely yours
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科目:高中英語 來源:江西省2016-2017學(xué)年高二下學(xué)期第一次月考(3月)英語試卷 題型:短文填空
閱讀下面材料,在空白處填入適當(dāng)內(nèi)容(1個單詞)或括號內(nèi)單詞的正確形式。
Anyone who has had a long-term disease knows that recovering at home can be lonely. This can be 1. (especial) true of children. They may feel 2. (leave) out. Now, these children may have a high-tech friend to help feel less alone. A small robot may help children who are recovering from long-term 3. (ill). The robot like human beings takes their place at school. And their school friends must help carry the robot between classes and place the robot on their desks.
Through the robot, a child can hear his or her teachers and friends. He or she can also attend classes from wherever they are recovering-whether at home 4. from a hospital bed. Delve, one of the scientists who 5. (be) concentrating on developing the robot, explains 6. the robot AV1 works. She says from home, the child uses a tablet or phone to start the robot, 7. (use) the same device, he or she can control the robot’s movements. Inside the robot, there is a small computer linked 8. a 4G network. The robot is 9. (equip) with speakers, microphones and cameras, which makes communicating 10. (easy). So it’s the eyes and the cars and the voices at school. Hopefully AV1 will help some children feel less lonely while they are absent from class.
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科目:高中英語 來源:河南省英文學(xué)校2016-2017學(xué)年高二下學(xué)期第一次月考英語試卷 題型:書面表達(dá)
高中生活已經(jīng)過去一半,在這過去的一年半里,你在獲取知識的同時,你的身體,興趣愛好,學(xué)習(xí)生活習(xí)慣等等都有了一定的改變吧!請你以How I Change為題,寫一篇短文,告訴我們你的變化好嗎?字?jǐn)?shù)在100詞左右。
溫馨提示:
1.短文中請勿使用真實姓名或班級名稱。
2.參考詞匯:hobby, habit, used to, enjoy oneself
3.短文開頭已經(jīng)為你寫好(字?jǐn)?shù)不計入總數(shù)),請你接著往下寫。
How I Change
Mylife has changed a lot in the past three years. ______________________
_____________________________________________________________
_____________________________________________________________
_____________________________________________________________
_____________________________________________________________
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科目:高中英語 來源:河南省南陽市2018屆高三第一次考試(8月)英語試卷 題型:七選五
If you’re in your 20s or even 30s, you might feel a lot of uncertainty all the time. You may be not sure what your life purpose is.1.This is normal.
We all want to have a certain life purpose. We all want to feel we’re on the right path. We all want to perfect our habits, our routines, or our productivity. We all want to feel more certain, and perfect in what we’re doing.
There is a struggle between the comfort of certainty and perfection and the fear of uncertainty and being suboptimal(不最理想的).
Let me let you in on a secret: no one is free from this struggle. Look at the most successful people you can think of —Bill Gates, Obama, Taylor Swift. 2.Do you think they have certainty and a feeling of reaching perfection? Not a chance. There is not one of us alive, not me or anyone else, who ever feels certainty about their purpose or path. If they do, they’re fooling themselves. 3.
No one ever feels they’ve found the perfect productivity routine, the perfect version of themselves. 4.
We all feel uncertainty, all day, and we all struggle with it. Some people have grown more comfortable with it than others, but in general no one likes uncertainty.
5.That’s perfectly OK, perfectly normal. Don’t run from it. Instead, stay with this uncomfortable, unappealing uncertainty. It’s here in you, a part of this moment, a part of you but not the whole of you.
A.Because it doesn’t exist.
B.Do you think they have it all figured out?
C.This uncertainty you’re feeling is unpleasant.
D.But if they’re honest, they don’t feel that certainty.
E.See if you can tell what you’re being uncertain about.
F.So focus on what you actually have right in front of you.
G.You may be uncertain about what path you should take in life.
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科目:高中英語 來源:山西省太原市2016-2017學(xué)年高一5月月考英語試卷 題型:閱讀理解
Living among trees, plants and flowers can fill your life with beauty. And if you are a woman, it can also help you live longer. Researchers found that women who live in homes surrounded by plants appear to have lower death rates than women who live in areas with fewer plants.
Researchers at Harvard University’s T.H. Chan School of Public Health reported the finding. They looked at the information from one of the largest and oldest investigations of the women’s health: the Nurse’s Health Study. It began 40 years ago. It now has information on nearly 200,000 women.
For the new study, the team looked at the death rates of more than 100,000 women between the years 2000 and 2008. Then the researchers compared the death rates of these women to the plants around their homes. The researchers also considered other things, such as the age of the women, money they earn and race. They also looked at whether or not the women smoked.
The study found that the death rate among women who lived in the greenest spaces was 12% lower than those from the least green areas. The researchers were surprised to find such a strong connection between high vegetation levels and low death rates.
The study suggested that living among trees, flowers and other plants lowered levels of depression. Researchers said women in greener areas spent more time with other people and exercised more. It is common knowledge that plants can help the environment in many ways. The new finding also suggested ways to the government and the city planners to grow even healthier living areas.
1.How did the researchers divide the women in the study?
A. By their money. B. By their different ages.
C. By their habit of smoking. D. By the number of plants around them.
2.It can be inferred from the last paragraph that ________.
A. more and more women will plant trees
B. it will be a must to build houses with trees around
C. the new finding may influence future living conditions
D. the government will take action to make women healthier
3.What is the best title of this passage?
A. Women should grow flowers at home
B. Plants may help women live longer
C. Women must exercise more to keep healthy
D. The bad environment causes high death rates
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