Many people don't consider their breakfast without a glass of milk． Right now， cows， buffalos， goats and sheep provide most of the world's milk． But soon， people could get milk from roaches（蟑螂）．
That isn't as crazy as it might sound． New research shows this "milk" is super﹣nutritious． What's more， some scientists have already begun referring to a lot of insects as source of milk．
In 2004， Subramanian Ramaswamy started studying milk crystals found inside the roach． At the time， he was teaching biochemistry at the University of Iowa City．
To learn more about the milk crystal from roaches， the scientists used X﹣rays to look at the atoms in it． The data basically revealed the chemical recipe of the roach crystal． They showed that roach milk is a "complete food"． It contains sugar with a fatty acid stuck to it． Fatty acids are the building blocks of fats． The protein in the milk is also full of essential amino（氨基的） acids， which are the building blocks of proteins． Since our bodies can't produce the "essential" ones， we need to get them from our food． And so do baby roaches．
Barbara Stay， a biologist at Iowa University， also worked on the new study． She says the new data show that the roach milk is "three times more nutritious than cow's milk and four times more nutritious than buffalo's milk"．
Ramaswamy would like to see roach milk turned into a protein supplement to feed hungry people． But not everyone is confident that it can be done．
Marcel Dicke studies insects as a potential source of human food at Wageningen University in the Netherlands． Dicke says this is a "sound study"． However， in his opinion， "Extracting（提取） milk from roaches can only likely be done in a destructive way with only small quantities"． That means you'd have to raise and kill many bugs to get even tiny quantities of the milk．
1.What is the opinion of the scientists about milk in Paragraph 2？
A. Many insects are sources of milk．
B. Milk is an important part of breakfast．
C. Milk from insects is the most nutritious．
D. Milk from insects is well accepted now．
2.What can we know about the use of roach milk in life？
A. It will replace the milk from animals like cows．
B. Scientists think it the key to solving world hunger．
C. All people don't think it can be used in life soon．
D. Most people depend on roach milk from protein．
3.According to Marcel Dicke， extracting insect milk on a large scale is ．
A. simple
B. challenging
C. safe
D. necessary
4.What should be the best title for the text？
A. Roach milk has been found scientifically
B. Roach milk could be produced industrially
C. Roach milk could be a new super food
D. Roach milk will be widely used soon
高三英语阅读理解中等难度题
Many people don't consider their breakfast without a glass of milk． Right now， cows， buffalos， goats and sheep provide most of the world's milk． But soon， people could get milk from roaches（蟑螂）．
That isn't as crazy as it might sound． New research shows this "milk" is super﹣nutritious． What's more， some scientists have already begun referring to a lot of insects as source of milk．
In 2004， Subramanian Ramaswamy started studying milk crystals found inside the roach． At the time， he was teaching biochemistry at the University of Iowa City．
To learn more about the milk crystal from roaches， the scientists used X﹣rays to look at the atoms in it． The data basically revealed the chemical recipe of the roach crystal． They showed that roach milk is a "complete food"． It contains sugar with a fatty acid stuck to it． Fatty acids are the building blocks of fats． The protein in the milk is also full of essential amino（氨基的） acids， which are the building blocks of proteins． Since our bodies can't produce the "essential" ones， we need to get them from our food． And so do baby roaches．
Barbara Stay， a biologist at Iowa University， also worked on the new study． She says the new data show that the roach milk is "three times more nutritious than cow's milk and four times more nutritious than buffalo's milk"．
Ramaswamy would like to see roach milk turned into a protein supplement to feed hungry people． But not everyone is confident that it can be done．
Marcel Dicke studies insects as a potential source of human food at Wageningen University in the Netherlands． Dicke says this is a "sound study"． However， in his opinion， "Extracting（提取） milk from roaches can only likely be done in a destructive way with only small quantities"． That means you'd have to raise and kill many bugs to get even tiny quantities of the milk．
1.What is the opinion of the scientists about milk in Paragraph 2？
A. Many insects are sources of milk．
B. Milk is an important part of breakfast．
C. Milk from insects is the most nutritious．
D. Milk from insects is well accepted now．
2.What can we know about the use of roach milk in life？
A. It will replace the milk from animals like cows．
B. Scientists think it the key to solving world hunger．
C. All people don't think it can be used in life soon．
D. Most people depend on roach milk from protein．
3.According to Marcel Dicke， extracting insect milk on a large scale is ．
A. simple
B. challenging
C. safe
D. necessary
4.What should be the best title for the text？
A. Roach milk has been found scientifically
B. Roach milk could be produced industrially
C. Roach milk could be a new super food
D. Roach milk will be widely used soon
高三英语阅读理解中等难度题查看答案及解析
Many people cannot start their day without first having a cup of coffee or tea．These drinks help them think clearly and feel more awake．This is because of caffeine，which helps to give a jump start to the nervous system．Now，a report says it may also boost long-term memory．
Mike Yassa is a neurobiology professor．He and other researchers wanted to know if caffeine could improve a person’s memory．He explains，“After you learn anything，it takes some time for that memory to strengthen．And over the first 24 hours is actually where most of the forgetting happens．So that is where we wanted to intervene with caffeine and see if we can help reduce this forgetting．”
They took 160 caffeine-free people and showed them pictures of everyday objects. These people were asked if the objects could be found inside the house， or outdoors．Then some of the subjects were given a caffeine pill．The others were given a placebo—a pill containing nothing. 24 hours later，the subjects were shown the exact same images from the day before．They were also shown images with slight differences，and some completely new images. Both groups correctly identified the exact same and completely new pictures．But those who took the caffeine pill were better at spottingthe pictures that were slightly different．
Professor Yassa says their answers helped to show the effects of caffeine on memory. And we find that if they are on caffeine they are much more likely to make the right decision．”
The amount of caffeine the researchers used in the study was similar to one cup of strong coffee．The researchers did not see any improvement to memory from smaller doses of caffeine or when it was given an hour before viewing the images．
1.What is the focus of the text?
A．Caffeine can make people addicted．
B．Caffeine can make people energetic.
C．Caffeine can improve long—term memory．
D．Caffeine can make people feel comfortable．
2.What does the third paragraph mainly talk about?
A．How the experiment was conducted．
B．Who took part in the experiment．
C．Which group of subjects did better．
D．What was used in the experiment．
3.In which section of a magazine can we read this text?
A．Culture． B. Technology． C．Health. D．Education.
4.Which of the following statements is NOT true?
A．Most forgetting occurs within the first 24 hours．
B．Forgetting can be positively affected by caffeine．
C．The subjects were given different pills．
D．Yassa was disappointed with the result．
5.What can we learn from the last paragraph?
A．More caffeine means better memory．
B．Smaller doses of caffeine doesn’t work．
C．The time to take cafieine doesn’t matter．
D．Caffeine is taken before the experiment．
高三英语阅读理解中等难度题查看答案及解析
Many people don’t have a home because of an illness or because they lost their jobs. They have bad health and can’t start working, and because of that, they can’t pay for a doctor, so it’s a never-ending circle. Homeless people don’t have anywhere to go, so they have to sleep on the streets, covering themselves with newspapers and looking through the rubbish cans to find some food or warmer clothes.
Seeing these horrible living conditions, the Australian charity Beddown decided to help these people in need. They came up with an amazing idea to make shelters in places that are vacant at night-like parking lots! The organization asked one of the largest car park-opera tors, Secure Parking, and they agreed upon it.
“It was great to start with a group of our volunteers to help us and set up some beds. Although as expected we had a few challenges to overcome, it was good to start bringing Bed down to life. Beddown will provide an immediate response for those who can not sleep well to access safe, find shelter-and access to a real bed and a great night’s sleep. We will work with our other partners to provide long-term solutions to providing our guests with accommoda-tion, education and employment opportunities.” The founders of Beddown said in one of their Instagram posts.
The charity also provided other services to the guests, like doctors, nurses, dentists, hairdressers. They gave them new clothing, a place to clean themselves and helped provide social services. “After spending the week here, having a good sleep at night, it reminded me of life and I want to begin my life again,” one homeless man said.
1.What can we learn about the homeless in Australia？
A.They live a hard life. B.They lost their families.
C.They don’t want to work. D.They like to live on the street.
2.What does the underlined word “it” in paragraph 2 refer to？
A.Making beds for the homeless. B.Using the parking lot to get money.
C.Using the parking lot to help the homeless. D.Inviting the car park operators to organize the activity.
3.What did the founders of Beddown say about setting up beds for the homeless？
A.It is only a part of their help. B.It helps the volunteers greatly.
C.It makes the Beddown get more reputation. D.It gives the homeless a chance to return to real life.
4.What can be the best title for the text？
A.The Homeless Get Good Diet Now.
B.Beddown Shelters the Homeless in Car Parks.
C.Beddown Helps the Homeless Find Jobs in Car Parks.
D.Australian Charity Beddown and the Homeless in Australian.
高三英语阅读理解中等难度题查看答案及解析
Many children would start school hungry without breakfast clubs, teachers have claimed. A new survey suggests these clubs are the only way many students can get a meal before lessons.
About 54% of the 552 school staff questioned by the Association of Teachers and Lecturers(ATL)said their school provides a breakfast club for pupils. The biggest reason for them to attend these clubs is that their parents or carer goes to work early, cited by 76.8% of those questioned.
About 22.6% said children attended due to lack of money at home because parents or carers are unemployed and 15.2% said lack of money at home due to changes or cuts to benefits.
About 17.6% said pupils mainly attend breakfast clubs to socialize.
The survey found that teachers believe that offering breakfast to pupils often helps improve their concentration and ability to learn. One primary school teacher said: “Although there is a charge for our breakfast club, we have accessed funding for those pupils on free school meals and the breakfast club had an effect on their attendance, concentration and being in school for the start of lessons.
ATL general secretary Dr Roper said a nutritious meal at the start of the day has a huge impact on pupils’ ability to learn. “Many schools do everything they can to ensure children eat well during school term-time. But there are many children living in poverty, who we fear won’t be getting a decent meal a day in the holidays and this is something the government needs to address,” she said.
A Department for Education spokesman said: “We know how important it is for children to
have a good breakfast. We want schools and local authorities to use their budgets to best meet the needs of their children. Many provide breakfast clubs which offer a free meal to children from poorer families. The Pupil Premium, which will double to ￡ 2.5 billion in 2014-2015, targets extra money to help schools to provide support such as this to the most disadvantaged children. The free school meal scheme also ensures that these children have access to a nutritious lunch every day.
1.How many factors are mentioned which can account for the popularity of breakfast clubs?
A. Two. B. Three. C. Four. D. Five.
2.By getting breakfast offered by breakfast clubs, pupils can______.
A. perform better in their study
B. know how they can save money
C. eat better for their lunch and supper
D. make more friends with their classmates
3.The pupil Premium and the free school meal scheme are mentioned in order to show_____.
A. every child should get access to a nutritious meal
B. breakfast clubs play a key role in children’s growth
C. many efforts are made to provide a good and free meal
D. many schools can’t offer a good and free meal to children
4.In which part of a magazine can we probably read this passage?
A. Entertainment. B. Education. C. Culture. D. Health.
高三英语阅读理解中等难度题查看答案及解析
People with an impulsive personality refer to those who tend to do things without considering the possible dangers or problems first. According to a new study by researchers at the University of Georgia, such people may be more likely to have food addiction. The study found that people exhibiting impulsive behavior weren’t necessarily overweight, but impulsiveness was related to a direct relationship with food, and therefore, less healthy weight.
Food addiction has been compared to addictive drug use. Studies have linked the dopamine (多巴胺) release that occurs after tasting delicious food to the dopamine release that happens when people consume other addictive substances.
Impulsive behavior involves several personality traits (特点). Two of these traits, known as negative urgency and lack of perseverance, were particularly associated with food addiction and high BMI (身体质量指数) during the study.
Negative urgency is characterized by the tendency to behave impulsively when experiencing negative emotions. Some people might drink alcohol or take drugs. For others, it could mean eating to feel better. Lack of perseverance is when a person has a hard time finishing hard or boring tasks. People with a lack of perseverance might have difficulty attempting to change addictive eating behavior, which could also cause obesity.
“Impulsiveness might be one reason why some people eat in an addictive way despite motivation to lose weight,” said Dr. Ashley Gearhardt, a clinical psychologist. He was involved in developing the Yale Food Addiction Scale in aid of those people. “We are theorizing that if food addiction is really a thing, then our measure, the Yale Food Addiction Scale, should be related to helping control impulsive action,” said Gearhardt.
Clinical psychologist Dr. James MacKillop, whose lab was conducting the study, believes that therapies used to treat addictive drug behavior could help people who suffer from addictive eating habits.
“Most of the programs for weight loss at this point focus on the most obvious things, which are clearly diet and exercise,” MacKillop said. “It seems that managing strong desires to eat would naturally fit in with the skills a person would need to eat healthily.”
1.According to Paragraph 1, the result of food addiction is ________.
A. less healthy weight B. motivation to lose weight
C. negative emotions D. taking alcohol or drugs
2.How does the author introduce the two personality traits in Paragraph 4?
A. By making comparisons and conclusions.
B. By explaining causes and effects.
C. By presenting questions and answers.
D. By giving definitions and examples.
3.What can be inferred about the Yale Food Addiction Scale from the text?
A. It has been successfully carried out among overweight people.
B. It might help some impulsive people with food addiction to lose weight.
C. It will prove whether food addiction is a problem to impulsive people.
D. It is theoretically a proper treatment for addictive food and drug behavior.
4.Which of the following can be the best title for the text?
A. Dopamine release caused by food addiction
B. Food addiction compared to drug use
C. Impulsive personality linked to food addition
D. Food addiction contributing to obesity
高三英语阅读理解中等难度题查看答案及解析
People with an impulsive personality refer to those who tend to do things without considering the possible dangers or problems first. According to a new study by researchers at the University of Georgia, such people may be more likely to have food addiction. The study found that people exhibiting impulsive behavior weren’t necessarily overweight, but impulsiveness was related to a direct relationship with food, and therefore, less healthy weight.
Food addiction has been compared to addictive drug use. Studies have linked the dopamine (多巴胺) release that occurs after tasting delicious food to the dopamine release that happens when people consume other addictive substances.
Impulsive behavior involves several personality traits (特点). Two of these traits, known as negative urgency and lack of perseverance, were particularly associated with food addiction and high BMI (身体质量指数) during the study.
Negative urgency is characterized by the tendency to behave impulsively when experiencing negative emotions. Some people might drink alcohol or take drugs. For others, it could mean eating to feel better. Lack of perseverance is when a person has a hard time finishing hard or boring tasks. People with a lack of perseverance might have difficulty attempting to change addictive eating behavior, which could also cause obesity.
“Impulsiveness might be one reason why some people eat in an addictive way despite motivation to lose weight,” said Dr. Ashley Gearhardt, a clinical psychologist. He was involved in developing the Yale Food Addiction Scale in aid of those people. “We are theorizing that if food addiction is really a thing, then our measure, the Yale Food Addiction Scale, should be related to helping control impulsive action,” said Gearhardt.
Clinical psychologist Dr. James MacKillop, whose lab was conducting the study, believes that therapies used to treat addictive drug behavior could help people who suffer from addictive eating habits.
“Most of the programs for weight loss at this point focus on the most obvious things, which are clearly diet and exercise,” MacKillop said. “It seems that managing strong desires to eat would naturally fit in with the skills a person would need to eat healthily.”
1.According to Paragraph 1, the result of food addiction is ________.
A. less healthy weight
B. motivation to lose weight
C. negative emotions
D. taking alcohol or drugs
2.How does the author introduce the two personality traits in Paragraph 4?
A. By making comparisons and conclusions.
B. By explaining causes and effects.
C. By presenting questions and answers.
D. By giving definitions and examples.
3.What can be inferred about the Yale Food Addiction Scale from the text?
A. It has been successfully carried out among overweight people.
B. It might help some impulsive people with food addiction to lose weight.
C. It will prove whether food addiction is a problem to impulsive people.
D. It is theoretically a proper treatment for addictive food and drug behavior.
4.Which of the following can be the best title for the text?
A. Dopamine release caused by food addiction
B. Food addiction compared to drug use
C. Impulsive personality linked to food addition
D. Food addiction contributing to obesity
高三英语阅读理解中等难度题查看答案及解析
With the new family planning policy _______, many young parents are considering having their second child.
A. introduce B. introducing
C. to introduce D. introduced
高三英语单项填空中等难度题查看答案及解析
For people, many other animals, family matters. Consider how many jobs go to relatives. Or how an ant will cruelly attack intruder (入侵的) ants but rescue injured, closely related nest-mates. There are good evolutionary reasons to aid relatives, after all. Now, it seems, family feelings may stir in plants as well.
A Canadian biologist planted the seed of the idea more than a decade ago, but many plant biologists regarded it as heretical-plants lack the nervous systems that enable animals to recognize kin (家族), so how can they know their relatives? But with a series of recent findings, the belief that plants really do care for their most genetically close peers-in a quiet, planty way-is taking root. Some species control how far their roots spread, others change how many flowers they produce, and a few tilt (倾斜) or shift their leaves to minimize shading of neighboring plants, favoring related individuals.
“We need to recognize that plants not only sense whether it’s light or dark or if they’ve been touched, but also whom they are interacting with,” says Susan Dudley, a plant evolutionary ecologist, whose early plant kin recognition studies sparked the interest of many scientists.
Beyond broadening views of plant behavior, the new work may have a practical side. In September 2018, a team in China reported that rice planted with kin grows better, a finding that suggested family ties can be used to improve crop yields. “It seems anytime anyone looks for it, they find a kin effect,” says Andre Kessler, a chemical ecologist at Cornell University.
1.Why are ants mentioned in the first paragraph?
A.To show how cruel ants are to their enemies.
B.To lay foundation for the idea of plants’ family feelings.
C.To introduce the topic of how family matters to animals.
D.To explain why people usually give more jobs to their relatives.
2.Which of the following can best replace the underlined word “heretical” in paragraph 2?
A.Indescribable. B.Understandable. C.Impossible. D.Traditional.
3.What may be the plants’ way of expressing their care for relatives?
A.They stop producing flowers to avoid competition.
B.They spread their roots far so as to protect their peers.
C.They care for their injured peers by silently taking roots.
D.They move their leaves to share sunlight with their close peers.
4.What can be inferred from the text?
A.Different plants mustn’t be planted together.
B.Corn planted with corn can produce more than that with rice.
C.China has put the idea into wide practice and achieved great success.
D.The closer rice is planted with their relatives the more they will produce.
高三英语阅读理解困难题查看答案及解析
For people, many other animals, family matters. Consider how many jobs go to relatives. Or how an ant will cruelly attack intruder(入侵的)ants but rescue injured, closely related nest-mates. There are good evolutionary reasons to aid relatives, after all. Now, it seems, family feelings may stir in plants as well.
A Canadian biologist planted the seed of the idea more than a decade ago, but many plant biologists regarded it as heretical—plants lack the nervous systems that enable animals to recognize kin(家族), so how can they know their relatives? But with a series of recent findings, the belief that plants really do care for their most genetically close peers—in a quiet, planty way—is taking root. Some species control how far their roots spread, others change how many flowers they produce, and a few tilt(倾斜)or shift their leaves to minimize shading of neighboring plants, favoring related individuals.
“We need to recognize that plants not only sense whether it’s light or dark or if they’ve been touched, but also whom they are interacting with,” says Susan Dudley, a plant evolutionary ecologist, whose early plant kin recognition studies sparked the interest of many scientists.
Beyond broadening views of plant behavior, the new work may have a practical side. In September 2018, a team in China reported that rice planted with kin grows better, a finding that suggested family ties can be used to improve crop yields. “It seems anytime anyone looks for it, they find a kin effect,” says Andre Kessler, a chemical ecologist at Cornell University.
1.Why are ants mentioned in the first paragraph?
A. To show how cruel ants are to their enemies.
B. To lay foundation for the idea of plants’ family feelings.
C. To introduce the topic of how family matters to animals.
D. To explain why people usually give more jobs to their relatives.
2.Which of the following words has the closest meaning to the underlined word “heretical”?
A. Indescribable. B. Understandable. C. Impossible. D. Traditional.
3.What may be the plants’ way of expressing their care for relatives?
A. They stop producing flowers to avoid competition.
B. They spread their roots far so as to protect their peers.
C. They care for their injured peers by silently taking roots.
D. They move their leaves to share sunlight with their close peers.
4.What can be inferred from the text?
A. Different plants mustn’t be planted together.
B. Corn planted with corn can produce more than that with rice.
C. China has put the idea into wide practice and achieved great success.
D. The closer rice is planted with their relatives the more they will produce.
高三英语阅读理解中等难度题查看答案及解析
Many people have never heard of Mesothelioma and are unaware of its symptoms. Although considered a rare form of cancer, each year the number of cases grows. With the prevalence(流行)of this disease on the rise, it is critical to understand why and how Mesothelioma develops and what courses of action can be taken in the event of diagnosis. The following is a list of frequently asked questions and answers that will provide you with some information on Mesothelioma, and the legal issues surrounding it.
What is Mesothelioma?
Mesothelioma is the term used to describe a cancerous tumor found in the mesothelial cells of an organ. The organs where this form of cancer is most commonly found are the lungs, heart and abdominal organs. Pleural Mesothelioma is cancer of the lung lining(组织,膜)and is the most common form of Mesothelioma.
What causes Mesothelioma?
Mesothelioma is almost always caused by exposure to asbestos(石棉). Asbestos is often found in building materials used before the mid 1970's. In addition, materials such as pipes, boiler insulation, floor, ceiling and roof tiles may contain asbestos.
How much asbestos exposure will cause Mesothelioma?
Generally, the probability of developing this form of cancer is in accordance with the length of time you are exposed to asbestos. Also, your health is at risk if your exposure to asbestos is intense. It should be noted that Mesothelioma has a latency(潜伏)period of 20 to 50 years. This means that you may develop the disease long after your exposure to asbestos. On average, people tend to develop Mesothelioma somewhere between 35 and 40 years after exposure.
How quickly does Mesothelioma progress?
The onset of Mesothelioma is quite slow. Patients will begin to experience symptoms such as lower back pain and chest pain. These symptoms may also be accompanied by weight loss, fever and difficulty breathing. Unfortunately, once Mesothelioma develops, it quickly becomes aggressive and treatment must be sought immediately.
Can Mesothelioma be treated?
Doctors are able to use several traditional methods of cancer treatment for Mesothelioma, including surgery, chemotherapy and radiation. Like all forms of cancer, detecting the disease at the earliest stage possible greatly increases the patient's chances for survival. If you have worked in an industry such as construction or suspect that you may have been exposed to asbestos, be alert for symptoms and contact your doctor immediately.
What legal courses of action can be taken?
Anyone suffering from Mesothelioma is entitled to compensation from asbestos manufacturers. Additionally, if you are the spouse or child of someone who has died from Mesothelioma, you are entitled to file a claim and seek compensation.
1.The authors intends to _______.
A. tell the readers how important it is to know more about Mesothelioma.
B. provide more information about Mesothelioma
C. give advice on how tto avoid developing Mesothelioma
D. tell the readers how terrible Mesothelioma is
2.We can learn from the text that _______.
A. Asbestos is to blame for Mesothelioma.
B. Even if a person is exposed to asbestos for a while, he will die soon.
C. All the employees can ask for compensation from asbestos manufacturers.
D. Mesothelioma is a cancer familiar to many people.
3.The following are the symptoms of Mesothelioma EXCEPT ______.
A. frequent headache B. lower back pain
C. chest pain D. difficult breathing
4.Which of the following would be the best title for the text?
A. Terrible Mesothelioma
B. Mesothelioma is around us
C. Frequently Asked Questions About Mesothelioma
D. Mesothelioma in on the rise
5.If you work in an industry exposed to asbestos, you should ________.
A. give up the job immediately
B. ask for a rise from your boss
C. file a claim and seek compensation
D. go to hospital and have your body examined
高三英语阅读理解困难题查看答案及解析