精英家教网 > 高中英语 > 题目详情
More than 30 million kids buy school lunch each day. This year, many schools raised lunch prices to fight raising costs. Students pay about $2 a meal now. That is 27 cents more than last year. But they still get a good deal. The average cost for schools to produce one meal has gone up 30 cents, and is now $3. 
So, how do schools neither make money nor lose money? To start, the government pays for a small part of the difference. Schools have to make up the rest. Peggy Eller, a leader of school nutrition (营养) service in Hudson, Wisconsin, said her district is cutting costs by using fewer paper products and serving smaller portion(份额). Well, portion control is one key to healthful eating! 
The push for more healthful food has grown in recent years. One in five kids aged 6 to 19 is overweight. Being overweight can cause health problems. Many states passed laws that require schools to serve nutritious meals. 
Since 2004, more than 90% of all U.S. Schools have removed the fat from lunches. Foods high in fat, salt and sugar have been replaced by low-fat milk, fresh fruits and vegetables. These new items on lunch menus have encouraged kids to change their eating habits. “It makes easier to try new things at home, “said Savanna Mackey, a Florida fifth-grader.  
Students need healthful meals to grow strong and do well in school. “Rising prices won’t stand in the way,”says school nutritionist Jane Thornton. “We’ll just be more clever in how we do things.”
小题1:In the first paragraph, the author aims to tell us        .
A.the large number of kids buying school lunch
B.the average price of school lunch
C.the school's ways to deal with school lunch
D.the fact of school lunch's getting more expensive
小题2:Many school districts raised lunch prices because        .
A.there is less healthful food on the menus
B.the cost of food has gone up
C.kids often forget to bring lunch money
D.some school dining-halls are serving smaller portions
小题3:According to Paragraph 4, Savanna Mackey      .
A.doesn't like the new items on the lunch menus
B.always enjoys foods like fresh and vegetables
C.becomes interested in eating healthy food at home
D.prefers eating at school to eating at home
小题4:What can be inferred from the passage?
A.American schools solve the problem of high food prices by themselves.
B.American schools are very concerned about their students’ health.
C.Almost all schools are forced by the government to serve healthy foods.
D.American childhood overweight is mainly caused by the present lunch foods.

小题1:D
小题2:B
小题3:C
小题4:B

试题分析:文章讲述的是因物价上涨,学校食堂饭菜涨价的事情。自从20004年以来,90%的美国学校都撤掉了高脂肪的午餐,改为低脂的牛奶、水果和蔬菜。
小题1:根据第一段和“This year, many schools raised lunch prices to fight raising costs.”可知,第一段主要讲的是食堂饭价上涨这件事。故选D。
小题2:根据第一段“raised lunch prices to fight raising costs...The average cost for schools to produce one meal has gone up 30 cents”可知,学校食堂涨价是为了应对物价的上涨,故选B。
小题3:根据第四段和“It makes easier to try new things at home, said Savanna Mackey”可知,Savanna Mackey现在习惯于在家吃一些牛奶、水果和蔬菜等接口食品,故选C。
小题4:根据第四段“Foods high in fat, salt and sugar have been replaced by low-fat milk, fresh fruits and vegetables.”和最后一段“Students need healthful meals to grow strong and do well in school.”可知,美国学校很关注学生的健康,故选B。
练习册系列答案
相关习题

科目:高中英语 来源:不详 题型:阅读理解

Julie was preparing for a trip when her phone slipped into a sink full of water. Panic moment! She quickly picked up the wet phone and tried to turn it on, but nothing worked. Her first reaction? She got dressed, drove to the nearest store, and bought a new model at full price.
A new study finds that fear of losing your phone is a common illness. About 66 percent of those surveyed suffer from nomophobia or “no mobile phone phobia”. Interestingly, more women worry about losing their phone than men.
Fortunately, there’s a solution.
The first step is to figure out if you have nomophobia. Checking your phone too often is one thing, but the true sign of a problem is that you can’t conduct business or go about your routine when the fear becomes so severe.
Do you go to unusual lengths to make sure you have your phone? That’s another sign of a problem. If you find you check your phone plenty of times per hour, or a total of an hour per day, there may be a problem.
Some of the treatments are similar to those for treating anxiety attacks: Leaving the phone behind and not checking e-mail or text messages, and then learning to tolerate the after anxiety. Even if this leads to a high level of worry and stress, the solution is to push through the fear and learn to deal with not having your phone. 
Of course, there are also technological alternatives. Luis Levy, a co-founder at Novy PR, says he uses an application called Cerberus that can automatically track the location of his phone. To find it, he can just go to a Web site and see the phone’s location.
He also insures his phone through a service called Asurion. The company’s description of its product reads like a prescription for anxiety: “60 million phones are lost, stolen or damaged each year. You’ll have complete peace of mind knowing that your phone is protected and you can quickly reconnect with family, friends and work, as soon as the very next day!”
小题1:Why does the author mention Kelly’s experience in the first paragraph?
A.To inform us that mobile phones are useful.
B.To introduce the topic for discussion.
C.To warn us that we should be careful.
D.To tell us we should get phones ready for a trip.
小题2:The underlined word “nomophobia” in Paragraph 2 means ________.
A.Fear of losing mobile phones.
B.Habits of using mobile phones
C.Eagerness for new mobile phones.
D.Independence of mobile phones.
小题3:Which of the following is a way to treat nomophobia?
A.Avoiding using phone for some time
B.Learning more about modern technology.
C.Protecting one’s phone against any damage.
D.Not using a mobile phone in one’s daily work.
小题4:Why can the service called Asurion help to treat nomophobia?
A.It lets you know other people also lose their phones.
B.It will give you a new phone through insurance.
C.It enables you to reconnect with your acquaintance.
D.It gives you a prescription to treat nomophobia.
小题5: What is the passage mainly about?
A.Solutions to nomophobia.B.New mobile phone technology.
C.Disadvantages of mobile phone.D.Attitude toward mobile phone.

查看答案和解析>>

科目:高中英语 来源:不详 题型:阅读理解

Electrical devices(仪器)could soon use power make by human energy. Scientists say they have developed an experimental device that produces electricity from the physical movement of a person walking . British scientist Max Donelan and other scientists in Canada and the United States developed the device.
The device connects to a person’s knee. As the person walks, the device captures energy each time the person slows down. To do this , the device helps with the slowing sown movement of the leg.  The movements of the walking person push parts of a small machine that produces electricity. Using the device, an adult walking quickly could produce thirteen watts of electricity in just a minute. Donelan says walking at that speed could produce enough power to operate a laptop computer for six minutes.
There are several possible uses for the device . Developers say it could help people who work in areas without electricity to operate small computers. The device could also be used in hospitals to operate heart pacemakers(起博器). It could even be used to assist in the movement of robotic arms and legs.
The experimental version of the device weighs about one and a half kilograms, but it is too costly for most people to buy. But the researchers hope to make a lighter, less costly version. An improved version should be ready in one year.
The developers hope the device will one day help developing countries. Nearly twenty five percent of people around the world live without electric power.
A similar product was invented in 2005 by Larry Rome of the University of Pennsylvania. He created a bag carried on a person’s back that also produces power from walking. The knee device does not produce as much electricity as the bag . But the bag requires the walker to carry a load of twenty to thirty kilograms.
小题1:The second paragraph mainly talks about       .
A.who developed the device
B.how the device works
C.several possible uses for the devices
D.how much electricity the device can produce
小题2:What is the disadvantage of the experimental version of the device?
A.It is too heavy for the walker to bear
B.It is too complex for people to use
C.It is too expensive for most people to afford
D.It will slow down one’s walking speed.
小题3:Compared with the device designed by Larry Rome ,this new device       .
A.produces power without adding more loads to the walker
B.can produce more power in a much shorter time
C.needs to be equipped with a battery
D.can help the walker walk faster
小题4:From the passage, we can learn that the electrical device can       .
A.help housewives operate the washing machine
B.make it much easier for us to go online
C.produce more electricity than that invented by Larry Rome
D.be applied to operate heart pacemakers
小题5:What would be the best title for the passage?
A.First device powered by walking will soon be on the market
B.Advanced technology brings in a new way to operate heart pacemakers
C.Device gives new meaning to the idea of power walking
D.Human energy will become a main source of electricity

查看答案和解析>>

科目:高中英语 来源:不详 题型:阅读理解

Do you know mulch? Mulch is a protective cover of material that is spread on top of soil. It is usually made out of organic material, like crop waste. Farmers may keep the remains of corn or other crops on top of the soil. This creates mulch on the soil surface. The plant remains help protect the soil against wind and water damage. Mulching is one of the best things people can do for their plants. It also helps keep the soil from getting dry, and reduces the need for watering plants. It also limits temperature changes in the soil. And it stops unwanted plants, or weeds, from growing.
Organic mulch improves the condition of soil. As the mulch breaks down, it provides material which keeps the soil from getting hard. This improves the growth of roots and increases the movement of water through the soil. It also improves the ability of the soil to hold water. Organic mulch contains nutrients for plants. It also provides good environment for earthworms and other helpful living things in the soil.
It is easy to find organic mulch materials. Cut-up leaves and small pieces of tree bark can be used. Grass cuttings are also a good mulch for plants. Mulch from news- papers works well in controlling weeds.
The best time to add mulch depends on your goal. Mulch provides a thick barrier between the soil and the air. This helps to reduce temperature changes in the soil. As a result, mulched soil will be cooler than other soil in the summer. In winter, the mulched soil may not freeze as deeply as other soil. The best time is after the ground has frozen, but before the coldest weather arrives. Spreading mulch before the ground has frozen may attract small animals searching for a warm place to spend the winter. Delaying the spreading should prevent this problem. The animals will probably find another place to live.
小题1:The author tells us the following EXCEPT ______.
A.what mulch is and its advantages
B.the best time to add mulch
C.the bad effects of mulch
D.what can be mulch on the soil surface
小题2: The following can be used as organic materials to make mulch EXCEPT ______.
A.tree barksB.plasticC.grass cuttingsD.cut-up leaves
小题3: The main idea of Paragraph 2 is that organic mulch can ______.
A.improve the condition of soil
B.improve the ability of the soil to hold water
C.provide a good environment for earthworms
D.improve the growth of roots and increase the movement of water through the soil
小题4: From the last paragraph, we know ______.
A.the best time to add mulch is in spring and summer
B.the best time to add mulch is after the coldest weather arrives
C.the best time to add mulch is exactly the same time of each year
D.choosing the best time to add mulch can avoid attracting small animals

查看答案和解析>>

科目:高中英语 来源:不详 题型:阅读理解

All too often, a choice that seems sustainable(可持续的)turns out on closer examination to be problematic. Probably the best example is the rush to produce ethanol(乙醇) for fuel from corn. Corn is a renewable resource —you can harvest it and grow more, almost limitlessly. So replacing gas with corn ethanol seems like a great idea. 
One might get a bit more energy out of the ethanol than that used to make it, which could still make ethanol more sustainable than gas generally, but that’s not the end of the problem. Using corn to make ethanol means less corn is left to feed animals and people, which drives up the cost of food. That result leads to turning the fallow land –including, in some cases, rain forest in places such as Brazil—into farmland, which in turn gives off lots of carbon dioxide (CO) into the air. Finally, over many years, the energy benefit from burning ethanol would make up for the forest loss. But by then, climate change would have progressed so far that it might not help.
You cannot really declare any practice “sustainable” until you have done a complete life-cycle analysis of its environmental(环境的) costs. Even then, technology and public keep developing, and that development can lead to unforeseen and undesired results. The admirable goal of living sustainably requires plenty of thought on an ongoing basis.
小题1:What might directly cause the loss of the forest according to the text?
A.The growing demand for energy to make ethanol
B.The increasing carbon dioxide in the air
C.The greater need for farmland
D.The big change in weather.
小题2:The underlined word “it” in the second paragraph refers to “           ” 
A.the energy benefitB.the forest loss
C.climate changeD.burning ethanol
小题3:The author thinks that replacing gas with corn ethanol is           . 
A.impracticalB.acceptableC.admirableD.useless
小题4:What does the author mainly discuss in the text? 
A.TechnologyB.Sustainability
C.Ethanol energyD.Environmental protection

查看答案和解析>>

科目:高中英语 来源:不详 题型:阅读理解

Most students try to learn English grammar using grammar textbooks. They study grammar rules and take grammar tests. They use an analytical(分析的) approach, attempting to memorize, and then apply, a great number of rules.
However, research has proved this method inefficient and ineffective. The truth is, the human brain simply cannot consciously remember process and use hundreds of or thousands of grammar rules. Real speech is too fast.
Native speakers do not learn grammar in this way, but rather intuitively (凭直觉地) and unconsciously. They learn in a complete way, not by attempting to memorize individual grammar rules. As a result, native speakers use correct grammar fluently and easily.
Fortunately, it is possible for English learners to learn grammar this way. Language teacher Blaine Ray has developed a unique "intuitive" approach to teach English grammar. Her system uses "point of view" stories to teach the patterns of English grammar, allowing students unconsciously to acquire correct grammar without ever studying grammar rules.
In this system, the teacher first tells a simple story from one point of view. It may be told about the past, then repeated, but beginning with "since he was a child"; then repeated again, but this time about the future.
Listening to these stories allows students intuitively and effortlessly to learn English grammar and makes them be able to use it correctly when they speak.
Point of View Stories is a creative new way to study English grammar, and offers hope to millions of frustrated English learners.
小题1:Which of the following ways is approved by the author?
A.Remembering grammar rules.
B.Taking grammar tests.
C.Analyzing grammatical structure.
D.Applying language to situations.
小题2: What does the underlined part "this way" in the fourth paragraph refer to?
A.Talking to native speakers when learning.
B.Learning English grammar in a complete way.
C.Using correct English grammar.
D.Learning English grammar from a teacher.
小题3:From this passage we learn that ______.
A.native speakers learn English grammar by listening to stories
B.Blaine Ray’s method gets students to grasp correct grammar unconsciously
C.Blaine Ray teaches grammar rules by asking students to tell stories
D.it’s hard for students to speak correct English in the new system
小题4:This passage wants to ______.
A.criticize the traditional way of learning grammar
B.introduce a new way to study English grammar
C.ask students to learn English grammar by listening to stories
D.tell us how the native speakers learn English grammar
小题5:Why shouldn’t the English learners use an analytical approach?
A.because the analytical approach can let them learn English grammar effortlessly
B.because the analytical approach makes them be able to use English correctly when they speak.
C.because the analytical approach can’t let them memorize and then apply a great number of rules.
D.because Real speech is too fast.

查看答案和解析>>

科目:高中英语 来源:不详 题型:阅读理解

Some scientists say that animals in the ocean are increasingly threatened by noise pollution caused by human beings. The noise that affect sea creatures comes from a number of human activities. It is caused mainly by industrial underwater explosions, ocean drilling, and ship engines. Such noises are added to natural sounds. These sounds include the breaking of ice fields, underwater earthquakes, and sounds made by animals themselves.
Decibels(分贝)measured in water are different from those measured on land. A noise of one hundred and twenty decibels on land causes pain to human ears. In water, a decibel level of one hundred and ninety-five would have the same effect.
Some scientists have proposed setting a noise limit of one hundred and twenty decibels in oceans. They have observed that noises at that level can frighten and confuse whales.
A team of American and Canadian scientists discovered that loud noises can seriously injure some animals. The research team found that powerful underwater explosions were causing whales in the area to lose their hearing. This seriously affected the whales’ ability to exchange information and find their way. Some of the whales even died. The explosions had caused their ears to bleed and become infected.
Many researchers whose work depends on ocean sounds object to a limit of one hundred and twenty decibels. They say such a limit would mean an end to important industrial and scientific research.
Scientists do not know how much and what kinds of noises are harmful to ocean animals. However, many scientists suspect that noise is a greater danger than they believed. They want to prevent noises from harming creatures in the ocean.
小题1:According to the passage, which of the following is increasingly dangerous to sea creatures?
A.The man-made noises.
B.The noises made by themselves.
C.The sound of earthquakes.
D.The sound of the ice-breaking.
小题2:As to the influence of noises on whales, which of the following statements is true?
A.They are deaf to noises.
B.Noises at a certain level may hurt them.
C.They are easily confused by noises.
D.Noises will limit their ability to reproduce.
小题3: We can know from the passage that many scientists think that the noise limit of one hundred twenty decibels would______.
A.prevent them from doing their research work
B.benefit them a lot in their research work
C.do good to their health
D.increase the industrial output
小题4:According to the passage, what will scientists most probably do in the future?
A.They will try their best to decrease noise.
B.They will work hard to cut down noise pollution.
C.They will study the effect of different noises.
D.They will protect animals from harmful noises.

查看答案和解析>>

科目:高中英语 来源:不详 题型:阅读理解

Over 60﹪of pupils in South African schools choose English for learning and teaching, but only 7﹪of pupils speak English as their home language, a recent South Africa survey shows.
Out of the country’s 12.2 million pupils only 851,536 speak English at home, yet 7.6 million pupils choose English as their favorite language of learning and teaching. Zulu is the most widely spoken home language, spoken by over 3.1 million pupils. However, less than a third of them choose to be taught in Zulu. The same thing is true of Pedi-speaking pupils, only a third of such pupils choosing to be taught in their home language. Besides English,
Afrikaans is the only language that has more pupils choosing it as their language of instruction than it has pupils who speak it at home. In primary schools, most pupils will choose African languages. As early as grade four, many would choose English or Afrikaans in their lessons.
The rising number of English-learning pupils is mainly caused by social and cultural reasons. English is the most common spoken language in official and public life in South Africa, the survey reports. In April 2011, the leaders of higher education and training said that they would take some steps to improve the university teaching and prevent the continuing decline of African languages. They suggested that in future every South African university student could be required to learn at least one African language in order to complete their studies at school.
小题1: We can learn from the passage that most South African pupils__________.
A.speak English both at home and at school
B.are required to learn two languages at school
C.choose English as their primary school language
D.are expected to speak their native language at home.
小题2: It can be inferred from the passage that__________________.
A.Afrikaans is the most popular home language in South Africa
B.it’s easier for South African pupils to learn Afrikaans at school.
C.the number of South African pupils learning Afrikaans has increased
D.many South African pupils use Afrikaans at school instead of at home.
小题3: The underlined word “decline” in the last paragraph is closest in meaning to “_________”.
A.going downhill
B.spreading widely
C.growing upwards
D.developing further
小题4: What is the survey in the passage mainly about?
A.The use of native languages in South African families.
B.The language choice and use among South African pupils.
C.The progress in South Africa’s language teaching education
D.The spread of English at schools in South Africa.

查看答案和解析>>

科目:高中英语 来源:不详 题型:完形填空

Which came first, the chicken or the egg? This is one of life’s ______ questions and people have been debating about it for thousands of years. Now scientists believe they have solved this ______. Researchers from Sheffield and Warwick Universities in England discovered the answer ____. They used a super computer to observe the shell-making process while a new shell was ____. Then they found one protein called OC17 that is ______ for forming eggshell. This is only found inside a chicken’s body, which is proof that the ______ came first. The team was ______ looking at how animals and birds make eggshells but suddenly made their surprising ______. The big question now is where chickens came from. The ______ is from dinosaurs.
The research team said eggshells are one of nature’s most ______ creations. Professor John Harding from the team told reporters: “Understanding how chickens make eggshells is fascinating in itself, but it can also be _____ in designing new materials.” Eggshells are very lightweight but incredibly strong. Even the most up-to-date materials _____ by the world’s top engineers cannot produce anything as ______ as an eggshell. Professor Harding added that ______ eggshells could help to cure bone diseases and design materials for the construction industry. “Nature has found wonderful ways that ___ for all kinds of problems in materials science and technology — we can learn a lot from them.” he said.
小题1:
A.strangestB.bestC.oldestD.Closest
小题2:
A.puzzleB.factC.historyD.opinion
小题3:
A.on purposeB.by chanceC.without hesitationD.at work
小题4:
A.breakingB.changingC.disappearingD.Forming
小题5:
A.necessaryB.easyC.kindD.impossible
小题6:
A.eggB.eggshellC.chickenD.dinosaur
小题7:
A.obviouslyB.originallyC.thoughtfullyD.surprisingly
小题8:
A.inventionB.mistakeC.statementD.discovery
小题9:
A.answerB.researchC.roadD.egg
小题10:
A.commonB.ridiculousC.funnyD.amazing
小题11:
A.interestingB.helpfulC.normalD.correct
小题12:
A.boughtB.cutC.designedD.carried
小题13:
A.brilliantB.ordinaryC.1ightD.small
小题14:
A.findingB.watchingC.studyingD.making
小题15:
A.happenB.workC.waitD.Look

查看答案和解析>>

同步练习册答案