WHEN you buy cooking oil in the supermarket, you may notice that some brands are labeled as “GM (genetically modified)-free”. So, what is genetic modification? Are GM foods safe?
These questions have been put back into the spotlight recently. On Nov 19, the Food and Drug Administration (FDA) in the US announced that it had approved the AquAdvantage salmon (三文鱼) to go on the market, making it the first genetically modified animal to be approved as food anywhere in the world.
GM foods are plants or animals that have been given a gene from another plant or animal to make them stronger in some way. The AquAdvantage salmon contains a gene from another type of salmon that makes it grow faster.
Although the FDA has said “food from the fish is safe to eat”, some believe that scientists can’t completely understand the potential health risks of GM foods, simply because they’re so new. Others worry that the fish could escape into the wild and cause ecological (生态的) problems.
GM crops have experienced the same controversy, even though GM technology cuts down on the use of pesticides (杀虫剂) on crops and increases yields.
While GM animals are new, GM crops have already appeared on our plates. A total of 28 countries in the world including the US, Brazil and India planted 181.5 million hectares (1.815 million km2) of GM crops in 2014, according to the International Service for the Acquisition of Agri-biotech Applications. In China, we grow GM cotton and papaya (木瓜) and import GM soybeans, corn, rape (油菜), cotton and beets (甜菜) from abroad.
Due to safety worries, many countries have regulations for producing and selling GM food.
In European Union countries, each GM food must be approved before it can be used. This process can take up to 17 months. The origin of all GM foods must also be traceable (可追溯的) , and all food with a GM content of more than 0.9 percent must also be labeled, according to EU website europa.eu.
The US is less strict about GM foods. According to FDA regulations, companies introducing new GM foods to the market should report them at least 120 days before release. The labeling is voluntary (自愿的), except that a product cannot be labeled as “GM-free” if genetically modified materials are used.
In China, GM foods can only be produced after strict tests by the Ministry of Agriculture say that they are safe. All food that is made from GM crops or contains GM ingredients must be clearly labeled on the wrapper (包装).
1.According to the text, the AquAdvantage salmon ______.
A. tastes better than normal salmon
B. is a product that mixes several types of fish
C. has a gene from a different type of salmon
D. remains to be approved in several countries
2.One of the reasons for many people to worry about the AquAdvantage salmon is that ______.
A. the gene that makes them grow faster can work on humans too
B. there are possible health risks that even scientists might not have figured out yet
C. they could possibly become threats to other wild species
D. they are not nutritious enough or might taste strange
3.From the text, it can be concluded that GM crops _____.
A. no longer cause any controversy
B. have already been planted in some countries
C. are popular because they don’t need pesticides
D. can increase yields, making them welcome in countries like Japan
4.Which of the following is TRUE about regulations for producing and selling GM food?
A. All food with GM content must be labeled in European countries.
B. In the US, the AquAdvantage salmon will have to be labeled as GM food.
C. In France, every GM food that is about to go on the market must be reported at least 120 days before release.
D. In China, all food that is made from GM crops or contains GM ingredients must be clearly labeled on the package.
高二英语阅读理解中等难度题
WHEN you buy cooking oil in the supermarket, you may notice that some brands are labeled as “GM (genetically modified)-free”. So, what is genetic modification? Are GM foods safe?
These questions have been put back into the spotlight recently. On Nov 19, the Food and Drug Administration (FDA) in the US announced that it had approved the AquAdvantage salmon (三文鱼) to go on the market, making it the first genetically modified animal to be approved as food anywhere in the world.
GM foods are plants or animals that have been given a gene from another plant or animal to make them stronger in some way. The AquAdvantage salmon contains a gene from another type of salmon that makes it grow faster.
Although the FDA has said “food from the fish is safe to eat”, some believe that scientists can’t completely understand the potential health risks of GM foods, simply because they’re so new. Others worry that the fish could escape into the wild and cause ecological (生态的) problems.
GM crops have experienced the same controversy, even though GM technology cuts down on the use of pesticides (杀虫剂) on crops and increases yields.
While GM animals are new, GM crops have already appeared on our plates. A total of 28 countries in the world including the US, Brazil and India planted 181.5 million hectares (1.815 million km2) of GM crops in 2014, according to the International Service for the Acquisition of Agri-biotech Applications. In China, we grow GM cotton and papaya (木瓜) and import GM soybeans, corn, rape (油菜), cotton and beets (甜菜) from abroad.
Due to safety worries, many countries have regulations for producing and selling GM food.
In European Union countries, each GM food must be approved before it can be used. This process can take up to 17 months. The origin of all GM foods must also be traceable (可追溯的) , and all food with a GM content of more than 0.9 percent must also be labeled, according to EU website europa.eu.
The US is less strict about GM foods. According to FDA regulations, companies introducing new GM foods to the market should report them at least 120 days before release. The labeling is voluntary (自愿的), except that a product cannot be labeled as “GM-free” if genetically modified materials are used.
In China, GM foods can only be produced after strict tests by the Ministry of Agriculture say that they are safe. All food that is made from GM crops or contains GM ingredients must be clearly labeled on the wrapper (包装).
1.According to the text, the AquAdvantage salmon ______.
A. tastes better than normal salmon
B. is a product that mixes several types of fish
C. has a gene from a different type of salmon
D. remains to be approved in several countries
2.One of the reasons for many people to worry about the AquAdvantage salmon is that ______.
A. the gene that makes them grow faster can work on humans too
B. there are possible health risks that even scientists might not have figured out yet
C. they could possibly become threats to other wild species
D. they are not nutritious enough or might taste strange
3.From the text, it can be concluded that GM crops _____.
A. no longer cause any controversy
B. have already been planted in some countries
C. are popular because they don’t need pesticides
D. can increase yields, making them welcome in countries like Japan
4.Which of the following is TRUE about regulations for producing and selling GM food?
A. All food with GM content must be labeled in European countries.
B. In the US, the AquAdvantage salmon will have to be labeled as GM food.
C. In France, every GM food that is about to go on the market must be reported at least 120 days before release.
D. In China, all food that is made from GM crops or contains GM ingredients must be clearly labeled on the package.
高二英语阅读理解中等难度题查看答案及解析
Are supermarkets designed to persuade us to buy more? When you enter a supermarket, the manager knows better than you: how you will behave — which way you will walk, where you will look, what will make you buy one product rather than another. When customers go into a shop, they naturally look to their left but move clockwise, towards the right. So supermarket entrances are usually on the left of the building. And the layout is designed to take shoppers around the store, aisle (通道) after aisle, from left to right. 1.
Fresh fruit and vegetables are displayed near supermarket entrances. 2. Basic food like sugar and tea, are not put near each other. They are kept in different aisles so customers are taken past other attractive foods before they find what they want. In this way, shoppers are encouraged to buy products that they do not really want.
People walk quickly through narrow aisles, but they move slowly in wide aisles and give more attention to the products. One best-selling position for products is at the end of aisles, because shoppers slow down to turn into the next aisle. 3. Supermarkets are paid by food companies to put their products in each of these high-selling places.
4. While parents are waiting to pay, children reach for the sweets and put them in the trolley.
More is bought from a fifteen-foot display of one type of product (e.g. cereal, washing powder) than from a ten-foot one. 5. They do not like to buy from shelves with few products on them because they feel there is something wrong with those products that are there.
A. Another is on shelves at eye level.
B. Sweets are often placed at children’s eye level at the checkout.
C. There are always enough products prepared for customers in the supermarket.
D. Then shoppers will pay attention to all the products.
E. This gives the impression that only healthy food is sold in the shop.
F. Customers also buy more when shelves are full than when they are half empty.
G. Supermarkets are one of children’s favorite places and they are also big consumers.
高二英语七选五中等难度题查看答案及解析
If you don't buy insurance for your car,you may ______losing everything when it gets destroyed in an accident.
A. delay B. deny
C. avoid D. risk
高二英语单项填空中等难度题查看答案及解析
If you are in Dubai you may notice a robot police officer sharing the street with you. Your first thought might be, “Have I walked into a movie set?”
The answer is no. That robot is Dubai's newest police officer. The robot has a touch screen instead of a gun. The robot will be employed mostly at shopping centers and other places popular with visitors.
The robot's face has eyes but no mouth or nose. It stands 165 centimeters tall and weighs 100 kilograms. If the robot works well, Dubai says 25 percent of its police force could be robots by 2030. The robot cop(巡警) was officially presented at Dubai's Gulf Information and Security Expo and Conference in May.
The police hope the robot will make life easier for the people of Dubai. Khalid Al Razooqi is Director General of Smart Services at the Dubai Police. He said the robot can help the public every day, and that “it won't ask for any sick leave”.
The robot cannot make arrests (逮捕). But it can recognize faces and compare them to photographs on a criminal database. It can also sense emotions. People can use the robot's touch screen to do things like reporting a crime, paying fines and reporting lost or found things. They can also ask how to get somewhere. The robot can greet and shake hands with people. So far, the robot can speak Arabic and English. It soon will learn other languages such as Russian, Chinese, French and Spanish. In addition to having a touch screen, the robot has a camera that can live stream video to a police command center.
Dubai has plans to add other kinds of robots to its police force. Within two years, the city plans to use a threemetertall robot that can run up to 80 kilometers an hour. The Dubai government says the machine would be the world's largest robot. A human police officer will be able to sit inside and control the robot. It will be able to lift heavy objects.
The city also plans to use an eggshaped robot to control parking areas and give tickets to people who break traffic laws.
1.Why do the police use the robot?
A. To attract more tourists to Dubai. B. To make people's life much easier.
C. To reduce the cost of the human workforce. D. To introduce new technology to people.
2.According to the Paragraph 5, the robot cannot be used to ________.
A. report a crime B. pay fines
C. ask for directions D. chat with people freely
3.What can be inferred from the text?
A. Robots have a bright future in Dubai.
B. Robots will replace the police in the near future.
C. People prefer robots to the human police service.
D. Robots will be used in every public area in Dubai.
高二英语阅读理解中等难度题查看答案及解析
In front of the reading room of Yangzhou High School, a notice reads, “When you finish the book, please ________ it on the shelf.”
A. replace B. twist C. reform D. pin
高二英语单项填空困难题查看答案及解析
Did you ever notice that when you’re fat, men don’t look you in the eye? They look across your shoulder. There’s no eye contact.
My name is Leslie. I am a real person. Up until two years ago, I was never looked in the eye by anyone.
I was too tired to be a lover to my husband. I was falling asleep by 8 o’clock most evenings. When I did go out for an evening. my husband was ashamed of me. And he said so to my face. When I walked, my thighs scrape together. I couldn’t even cross my legs. I was fat. Not just “overweight”. Fat! I was 5’55” tall and weighed 205 pounds.
About 18 months ago, my husband Darrell left a “Dear Leslie” letter on my bed and asked for divorce.
I went to a psychologist for advice. I knew that my weight was the source of my troubles. But I’d tried 14 different diets, at which I failed one by one.
He listened carefully and recommended an entirely different program. This was not a “diet.” It was a unique new weight-loss program researched by a team of specialists who help to treat the severely fat. I entered the program. Within the first four days, I lost only three pounds. So I was disappointed. But during the three weeks that followed, my weight began to drop from 205 pounds to 124 pounds. To me it was a miracle.
The reason why the program worked was simple. I was always eating. I could eat six times every day. I could snack in the afternoon. Snack before dinner. I could even have snack at night while watching TV.
How can you eat so much and still lose weight?
The secret is in the combination of foods, approved by the research team, which you eat in each 24 hour period. You will enjoy a variety of meats, chicken, fish, vegetables, potatoes, sauces. Even some light wine or beer if you wish. But be sure to have them in the right proportion(比例), thus a complete 24-hour fat-reduction cycle is formed.
Without hunger, without nervousness, it lets you lose pounds so easily. Once you lose the weight, youll keep it off. Forever, I am sure of that.
1.Leslie .
A. had never looked anybody in their eyes.
B. had difficulties in walking because she was too fat.
C. was disliked by her husband because she went to bed too early each evening.
D. was often embarrassed because she was overweight for her height.
2.Leslie went to psychologist for advice in order to .
A. lose her weight. B. recover her marriage
C. get a vegetarian diet D. become an advisor
3.The weight-loss program worked very well. The reason is that ___ .
A. Leslie ate very little food and sometimes even fast food.
B. Leslie only had snacks and never had dinners.
C. Leslie could have rich food several times a day in the right proportion.
D. Leslie had rich food whenever she felt hungry.
4.Where do you think this article is most likely to appear?
A. Daily newspaper. B. Women’s magazine.
C. A part of a novel. D. Newsweek magazine.
高二英语阅读理解中等难度题查看答案及解析
You may have heard the expression “buying into the dip”. We usually think of this in terms of nesting (投资) --- for example, recessions (经济萧条) offer an opportunity to take advantage of buying cheap stocks that were once expensive.
But to me, “buying into the dip” is a term which covers a lot more than that. There are a few reasons that I was able to “buying into the dip” and start a business during the Great Recession: ChopDawg.com had zero upstart costs, with no need for any credit to get started. No loans, just $10 for the domain name. I picked a service that only required my own time and labor and that’s basically it, Not needing credit was a big deal for me, and I didn’t even think about this at the time.
I was also selling a service that was priced at just the right rock-bottom level to fill a need local small business badly needed more sales, since so many had cut their spending due to the recession. A website could give these businesses a new way to reach their customers, new and old.
From an economic standpoint, the Great Recession was an opportunity to start if you were selling the right thing at the right cost. During recessions, the pool gets way less crowded. Potential competitors become much more unwilling to risk, but for those who have an in-demand service, and the means to provide it, you are in business.
Back in 2009, website design had not yet become a commercial service, Offering web design as a service for small businesses was a novel idea, and many mom-and-pop shops didn’t know they needed it yet, which brings me to this: if you can solve a fresh-out-of-the-recession pain point at the right price, you have a chance of buying into the dip and helping a lot of people at the same.
1.What is “buying into the dip” to the author?
A.Selling things at low costs.
B.Buying cheap stocks in time.
C.Offering help to small businesses.
D.Starting a business with the least investment.
2.What does the underlined word “novel” in Paragraph 5 mean?
A.Familiar. B.Simple.
C.Clear. D.New.
3.What can be a suitable title for the passage?
A.Start small--very small.
B.Keep an eye on what you may need.
C.Serve right--quite right.
D.Adapt to changes in the Internet service.
高二英语阅读理解中等难度题查看答案及解析
. The notice says that only when your identity has been checked _____.
A. will you allow in B. will you be allowed in
C. you will allow in D. you will be allowed in
高二英语单项填空简单题查看答案及解析
Would you buy a car that released calming smells into the air when you are stuck in heavy traffic? Would you buy a robot that smells like a human being?
Many people have seen the 3-D computer-made environments of virtual (虚拟的) reality (VR). Now these virtual worlds will not just look and sound real. Researchers have created VR environments that even smell like the real things. With the new technology, users open a virtual door and step into a new environment, like a rainforest. After they enter this virtual world, special equipment releases forest-like smells into the air to make the experience seem more real.
Suzanne Fisher-Murray said, "It is a really wonderful experience that you have because you, re-exploring this environment and you have smells with it."
In the United States, Smell-O-Vision was designed to provide smells during the showing of a movie. The Smell-O-Vision system was once popular in the 1960s. Now, Emanuela Maggioni says it is close to becoming popular again. "The connection with emotions, memories, and ... the sense of smell," Maggioni said. "It is unbelievable what we can do with technology."
The uses for smell technology are not just limited to films and the performing arts. Researchers showed a computer program where users could imagine themselves driving a car. The system included a special smell- spraying machine. Dmitrijs Dmitrenko said, "We want to deliver the smell of lavender (薫衣草) every time the person drives over the speed limit. We choose lavender because it’s a very calming smell."
Scientists are experimenting with smell instead of sounds or image-based alerts on telecommunications equipment. And businesses are already using smell to influence people’s behavior. "Not only...in stores…But on the other side, you can create and stimulate (刺激) immediate buying," Maggioni said. "So you’re in a library and you smell coffee and actually you are unconsciously having the need to drink a coffee."
1.What can researchers make VR environments do by using smell technology?
A. Have a smell of a rainforest. B. Even smell like real ones.
C. Look like a 4-D environment. D. Impress people with a virtual world.
2.The example of Smell-O-Vision proves that ____________.
A. America is the first to use smell technology
B. cinemas are the most suitable for smell sense
C. smell technology has been tried before
D. it was out of date to use smell-spraying devices
3.How is smell technology used by businessmen?
A. To make buyers understand salesmen better.
B. To remind people of their unrealistic buying.
C. To help customers choose their favorite goods.
D. To encourage people to buy something.
4.What is the main idea of the passage?
A. The developments of smell technology.
B. A major breakthrough of smell technology.
C. The sense of smell in human communication.
D. The advanced smell-spraying machines.
高二英语阅读理解困难题查看答案及解析
Would you buy a car that released calming smells into the air when you are stuck in heavy traffic? Would you buy a robot that smells like a human being?
Many people have seen the 3-D computer-made environments of virtual (虚拟的) reality (VR). Now these virtual worlds will not just look and sound real. Researchers have created VR environments that even smell like the real things. With the new technology, users open a virtual door and step into a new environment, like a rainforest. After they enter this virtual world, special equipment releases forest-like smells into the air to make the experience seem more real.
Suzanne Fisher-Murray said, “It is a really wonderful experience that you have because you reexploring this environment and you have smells with it.”
In the United States, Smell-O-Vision was designed to provide smells during the showing of a movie. The Smell-O-Vision system was once popular in the 1960s. Now, Emanuela Maggioni says it is close to becoming popular again. “People will be impressed by the connection with emotions, memories, and ... the sense of smell,” Maggioni said. “It is unbelievable what we can do with technology.”
The uses for smell technology are not just limited to films and the performing arts. Researchers showed a computer program where users could imagine themselves driving a car. The system included a special smell-spraying machine. Dmitrijs Dmitrenko said, “We want to deliver the smell of lavender (薫衣草) every time the person drives over the speed limit. We choose lavender because it's a very calming smell.”
Scientists are experimenting with smell instead of sounds or image-based warnings on telecommunications equipment. And businesses are already using smell to influence people's behavior. “Not only...in stores... But on the other side, you can create and stimulate (刺激) immediate buying,” Maggioni said. “So you're in a library and you smell coffee and actually you are unconsciously having the need to drink a coffee.”
1.Using smell technology, researchers make VR environments ________.
A.have a smell of a rainforest B.even smell like real ones
C.look like a 4-D environment D.impress people with a virtual world
2.The example of Smell-O-Vision proves that ___________.
A.smell technology has been tried before
B.America is the first to use smell technology
C.cinemas are the most suitable for smell sense
D.it was out of date to use smell-spraying devices
3.How is smell technology used by businessmen?
A.To make buyers understand salesmen better.
B.To remind people of their unrealistic buying.
C.To help customers choose their favorite goods.
D.To encourage people to buy something suddenly.
4.What is the main idea of the passage?
A.The advanced smell-spraying machines.
B.The developments of smell technology.
C.A major breakthrough of smell technology.
D.The sense of smell in human communication.
高二英语阅读理解中等难度题查看答案及解析