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2019高考英语（人教）一轮预热自练巩固题必修2U1---5及答案
2019高考英语（人教）一轮预热自练巩固题必修2U1及答案.DOC
2019高考英语（人教）一轮预热自练巩固题必修2U2及答案.DOC
2019高考英语（人教）一轮预热自练巩固题必修2U3及答案.DOC
2019高考英语（人教）一轮预热自练巩固题必修2U4及答案.DOC
2019高考英语（人教）一轮预热自练巩固题必修2U5及答案.DOC
　　2019高考英语（人教）一轮预热自练巩固题必修2U1及答案
　　***阅读理解
　　Best Companies
　　Shine United(Madison，Wisconsin)
　　In the past five years，this Wisconsin-based advertising agency has shared more than$500,000 in profits with its employees through the company's ShineShares program.The agency partnered with the University of Wisconsin's oncology department to develop the Ride，a biking event that benefits cancer research.Employees also get snacks every day，“Beer Thirty”on Thursdays，and Summer Fridays，a program that lets employees leave at noon.
　　GroundFloor Media(Denver，Colorado)
　　The key for workers at this midsize public relations firm in Denver is that employees work anytime，anywhere.Headquarters are in a former warehouse downtown，near Coors Field.The offices are spread around the central space that doubles as a wet bar every Thursday when the company's  “beer club” brings in a new brew.
　　Ergodyne(St.Paul，Minnesota)
　　The St.Paul-based company has grown to operate out of a retired storehouse with plenty of natural light.Rules about dressing？“Wear something.” Its purpose? To create cool，comfortable, and tough safety workwear for those who need it to get the job done.Ergodyne has around 50 employees, who enjoy hot-dish cook-offs, tickets to sporting events, and at least one happy hour every quarter.
　　Southwest Michigan First(Kalamazoo，Michigan)
　　It's family first at this Michigan economic development advising agency.CEO Ron Kitchens says that in the past year，the company has made a push to go green，initially started by the millennial employees who map half the agency's workforce.A new staff position was created for the purpose of mare every employee is able to balance working and cheering at their kids' sporting events or going fishing.
　　1．What's the purpose of the ShineShares program?
　　A．To raise money for a research.
　　B．To let employees leave earlier.
　　C．To share the company's benefits.
　　D．To partner with a local university.
　　2．What does Southwest Michigan First encourage their employees to do?
　　A．To accompany their families.
　　B．To create new staff positions.
　　C．To join in cooking competitions.
　　D．To enjoy themselves in sporting events.
　　3．Which company allows its staff a flexible working time?
　　A．Shine United.
　　B．GroundFloor Media.
　　C．Southwest Michigan First.
　　2019高考英语（人教）一轮预热自练巩固题必修2U2及答案
　　***阅读理解
　　The Amazon basin region is home to about 2.5 million insect species，tens of thousands of plants，and some 2 000 birds and mammals.To date，at least 40 000 plant species,3 000 fish,1 294 birds,427 mammals,428 amphibians，and 378 reptiles have been scientifically classified in the region.One in five of all the birds in the world live in the rainforests of the Amazon.
　　The warm wet forests have been in existence for 55 million years，and thrived even during glacial periods，allowing for the evolution of an unbelievable diversity of species.Radiocarbon dating(放射性碳年代测定)has revealed trees of 10 centimeter diameter to be more than 300 years old，and some trees over 1 000 years old，indicating that untouched forests can experience unbelievable longevity.
　　The first human inhabitants are thought to have settled in the Amazon region about 11 200 years ago.European explorers arrived in the 16th century，bringing diseases which traveled faster than the explorers themselves，killing perhaps as many as 90% of the indigenous inhabitants(土著居民)．By the late 17th century the Amazon basin was controlled by Portuguese and Spanish explorers.
　　The Amazon rainforest has been described as the lungs of our planet because of its important role in recycling carbon dioxide into oxygen.But due to deforestation(采伐森林)，rainforests now cover less than 5% of the Earth's land surface，and experts believe that this is a big contributor to global climate change.Severe deforestation began in the 20th century，with 587 000 square kilometers lost up to the year 2000.Most deforested land is used for grassland to raise farm animals and agriculture.The addition of transport routes has led to increased settlement and deforestation，and at the present rate，scientists estimate that the Amazon rainforest will be reduced by 40% in two decades.
　　1．Why are the figures mentioned in Paragraph 1?
　　A．To prove the forest untouched.
　　B．To classify species scientifically.
　　C．To show the diversity of species.
　　D．To attract more attention to Amazon.
　　2．Why did most indigenous inhabitants in the Amazon region die?
　　A．European explorers brought diseases there.
　　B．Portuguese explorers treated them badly.
　　C．A lot of trees were cut down and burned.
　　D．They got killed by Spanish explorers.
　　3．What can be inferred about the Amazon rainforest?
　　A．It has the largest number of species.
　　B．It covers over 5% of South America.
　　C．It is becoming larger in area.
　　D．It is being endangered now.
　　4．What may be included in the following paragraph?
　　A．Examples of destroying forests.
　　2019高考英语（人教）一轮预热自练巩固题必修2U3及答案
　　***阅读理解。
　　In the dead of winter，we don't typically thint spending time outdoors，but according to many physicians we should.The sun is our greatest source of a vitamin that is essential for good health—Vitamin D.
　　This important vitamin strengthens bones and teeth and is linked to the prevention of heart disease，cancer and many other life-threatening diseases.The recommended daily requirement is 400-600 International Units(IU)．In summer，people with dark brown eyes and darker srn sunlight from just 15 minutes outside without sunscreen into adequate amounts of Vitamin D.
　　Even during winter，just a 10-minute walk at midday can keep the body's Vitamin D at healthy levels.During brief winter walks，we receive the greatest benefits when we wear no sunscreen and expose as much skin to the sun as possible.
　　Vitamin D can be also obtained from foods.Salmon is one of the best sources of the Vitamin.Egg yolks(蛋黄)，cheese，mushrooms and some animal organs contain smaller quantities of it.
　　To attract consumers，food companies add Vitamin D to some of their milcts.The practice of putting the Vitamin into milk began in the 1930s.At that time，many children were suffering from rickets，an illness that is caused by a deficiency (缺乏)of Vitamin D．It made the children's bones soft and weak.Adding Vitamin D to milk helped to solve the problem，and it has been available ever since.
　　For people who still need more Vitamin D，there is another option：Take Vitamin D supplements(补充物)．These products are widely sold in stores.However，anyone considering tapplements should consult a physician first.
　　1．During the winter months，people ________.
　　A．aren't able to meet their deadlines
　　B．often don't dress warmly enough
　　C．generally like to remain indoors
　　D．leave lots of work for others to do
　　2．According to the text，Vitamin D ________.
　　A．can be obtained by being exposed to the sun
　　B．can be used to cure life-threatening diseases
　　C．can be mainly found in some milcts
　　D．can make the children's bones soft and weak
　　3．Why is salmon mentioned in this article?
　　A．It's seldom prepared in the correct way.
　　B．It's a useful addition to a person's diet.
　　C．It has a huge impact on the environment.
　　D．Its advantages have been exaggerated.
　　4．The main purpose of this article is ________.
　　A．to introduce a valuable nutrient
　　B．to advertise Vitamin D supplements
　　C．to note risks associated with a nutrient
　　D．to explain how a nutrient was discovered
　　【解题导语】本文是一篇科普文，主要介绍了维生素D的一些情况。
　　1．C　考查细节理解。根据第一段中的“In the dead of winter，we