Unit 5 The power of nature第一部分听力（满分30分）（略）第二部分阅读理解(共两节，满分40分)第一节 (共15小题；每小题2分，满分30分)阅读下列短文，从每题所给的A、B、C和D四个选项中，选出最佳选项。
AEnvironmental health is defined as the control of the factors (因素)in the environment social well-being (安乐) that may have harmful effects on people's physical, mental, or because natural disasters expose people to danger by bringing up or threatening their immediate environment , effective management of environmental health after a natural disaster is of great importance.The environmental health measures that must be considered after a natural disaster include the supply of appropriate shelter for individuals or groups of people left homeless, the distribution (分配)of safe and accessible water, and the protection and distribution of safe food products and so on.To effectively manage environmental health during and after a disaster, it is important that a state of preparation is in effect before the event actually occurs. During an emergency, success largely depends on making good, rapid judgment and appropriate response measures. High-level decision makers, therefore, must be familiar with sound measures beforehand and should be given an accurate judgment of the disaster's specific effects as quickly as possible.This book is intended to serve as a guide for those who may be called upon to make emergency decisions after disaster strikes. The recommended environmental health measures have been listed in the order of priority in which they should be taken during an emergency. However, each natural disaster is unique in the degree or type of emergency. In response to any given disaster, decision makers may find it necessary to change the priority assigned to any particular measure.1.Why is it significant to take effective measures after a natural disaster?A. Victims may be in danger without immediate controls.B. Victims may be at the risk of losing their properties.C. Victims may be exposed to poisonous or radioactive minerals.D. Victims may be threatened by environmental health problems.2.What is the main idea of Paragraph 3?A. Good preparations beforehand are vital.B. Rapid judgment is quite beneficial.C. Effective measures sound familiar.D. Slow responses sound ineffective.3.Whom is the book mainly written for?A.A researcher quite into environment health.B. An organizer to handle domestic disastrous situations.C.A possible decision-maker to handle a disaster emergency.D.A holidaymaker fond of the topic of effective management.4.Which of the following can replace the underlined word ＂priority＂ in Paragraph 4?A. Perfection.B. Preference.C. Possibility.D. Popularity-BA tsunami is a series of ocean waves that sends surges (汹涌) of water, sometimes reaching heights of over 100 feet, onto land. These walls of water can cause widespread destruction when they crash ashore.These fear-inspiring waves are typically caused by large, undersea earthquakes at plate boundaries. When the ocean floor at a plate boundary rises or falls suddenly it displaces the water above it and launches the rolling waves that will become a tsunami.Tsunamis may also be caused by underwater landslides (山崩) or volcanic eruptions. They may even be launched, as they frequently were in Earth’s ancient past, by the impact of a large meteorite (陨石) throwing into an ocean.Tsunamis race across the sea at up to 500 miles an hour — about as fast as a jet airplane. At that pace they can cross the entire expanse of the Pacific Ocean in less than a day. And their long wavelengths mean they lose very little energy along the way.In deep oceans, tsunami waves may appear only a foot or so high. But as they approach shoreline and enter shallower water they slow down and begin to grow in energy and height. The tops of the waves move faster than their bottoms do, which causes them to rise steeply.A tsunami is usually composed of a series of waves, called a wave train, so its destructive forcemay be increased as successive waves reach the shore. People experiencing a tsunami should remember that the danger may not have passed with the first wave and should await official word that it is safe to return to vulnerable locations.Some tsunamis do not appear on the shore as massive breaking waves but instead as a quickly surging tide that floods coastal areas.The best defense against any tsunami is early warning that allows people to look for higher ground.5.Which of the following may not cause a tsunami?A.A sudden big landslide underwater.B. An underwater earthquake.C. The eruption of an underwater volcano.D. The falling of a jet plane into the ocean.6.From the text, we can know that .A.in the ancient times, the fallen meteorite often caused a tsunamiB. a tsunami will become weaker and weaker as it moves onC. once a tsunami breaks out, it usually comes one after anotherD. a tsunami can always be predicted ahead of time7.Sometimes a tsunamis is called a wave train because .A.it is as long as a train when it comes to the shoreB.it moves faster and faster like a trainC.it has more than one wave when it breaks outD.it slows down when it comes near the shoreline8.According to the text, how can we avoid a tsunami?A. To build a system predicting it in advance.B. To wait for the end of the first wave.C. To escape by plane or by train.D. To keep away from the coastal areas.CMore than one in 10 of the UK’s wildlife species is threatened with extinction (灭绝) andthe number of the nation’s most endangered creatures has fallen by two-thirds since 1970. The abundance of all wildlife has also fallen, with one in six animals, birds, fish and plants having been lost, a State of Nature report found.Together with historical deforestation (毁林) and industrialization, these trends have left the UK ＂among the most nature-exhausted countries in the world＂, with most of the country having gone past the stage at which ＂ecosystems may no longer reliably meet society’s needs＂.zxx*k The comprehensive scientific report, gathered by more than 50 conservation organizations, spells out the destructive impact of modern farming and climate change on habitats from farmland and hills to rivers and the coast. ＂The fall in wildlife wasn’t just all back in 70s and 80s, it’s still happening now,＂ said Mark Eaton, at RSPB and the lead author of the report. ＂We’re getting more effi cient in our farming. In a way it’s something to be celebrated — how good our farming science and technology is, but it does squeeze nature out.＂Eaton said there were good examples of wildlife and habitat recovery, but such projects were too few to turn t he tide, with public funding for nature’s diversity having fallen by 32% from 2008 to 2015. ＂The ability to do it is within our grasp; it’s just about resources and the willingness. The natural world is in serious trouble and it needs our help as never before. We continue to lose the precious wildlife that enriches our lives and is essential to the health and well-being of those who live in the UK. But the State of Nature 2016 report gives us cause for hope too. Landscapes are being restored, special places defended, struggling species being saved and brought back. But we need to build significantly on this progress if we’re to provide a bright future for nature and for people.＂Overall, the new report found that 56% of species declined between 1970 and 2013, and 53% between 2002 and 2013. While the rest of the species were increasing, we’re seeing a lot of disorder, some species going up really fast and some going down equally fast. It doesn’t look like a healthy, natural situation. If that carries on, you end up with just 50% left.9.How is Paragraph 1 mainly developed?A. By listing figures.B. By giving examples.C. By analyzing causes.D. By making comparisons.10.What does the underlined part mean?A. Modern farming must return to nature.B. Modern farming makes full use of nature.C. Modern farming can enrich nature’s diversity.D. Modern farming may disturb nature’s balance.11.What does the last but one paragraph mainly suggest?A. Endangered wildlife must be well protected.B. People should unite to fight for a bright future.C. The situation is still severe despite some progress.D. More money is needed for environmental protection.12.What is the author’s purpose in writing the passage?A. To tell the British how to save wildlife species.B. To explain why more wildlife species face extinction.C. To stress the importance of protecting wildlife species.D. To introduce the current situation of Britain’s wildlife species.DWelcome campers! is your one –stop resource to find the perfect summer camp for your child. If you’re a camp lover, you will never fail to find the most suitable camp on our website! Happy camping!C amp Woodmont on Lookout MountainCamp Woodmont, with an emphasis on nature, is a traditional overnight summer camp for boys and girls aged 6-14, we are located on 170 acres of beautiful North Georgia woodlands on top of Lookout Mountain.Our summer camp experience provides cabin living, cool evenings around the camfire, creative counselors, new friends, talent nights, and a close family –like atmosphere. Activities include outdoor adventure, horseback riding, noncompetitive sports, and more. The atmosphere is appropriate for children from all faiths.Camp InventionCamp Invention is where your child learns science, technology engineering and math in a weeklong experience that taps into the spirit of innovation. No matter whether your kid wants to be a rocket scientist, an engineer or second baseman, Camp Invention is sure to teach lifelong lessons. Children see themselves as scientists, programmers and biologists testing out more thanone dozen experiments in the Camp Invention Laboratories. Every day there are exciting new challenges, from programming and coding, go repowering cars. Investigation and discovery are the key ingredients to fun in the ever-changing lab: Where Pige Fly and anything is possible!Sea CampSea camp is a year round, non-profit marine science and education camp for teenagers. Marine science instructors lead explorations, provide help in identification, explain relationships, and teach scientific techniques in marine environments including the living coral reef. It offers marine science education and a full suite of water sports and activities including SCUBA, sailing surfing, fishing, arts & crafts, and many more. Campers 12-17 years old enjoy these activates and many more in a traditional summer camp setting. Courses especially designed to teach teens to SCUBA dive can lead to NAUI Basic or Advanced certification.13.Camp Woodmen on Lookout Mountain is intended for .A. school students aged 12-17B. teenagers 14-17 years oldC. campers aged 6-14D. boys and girls under 1514.Of the following statements, which one is true?A. Camp Wood mont on Lookout Mountain requires campers to be competitive.B. Camp Invention is a good way to get the experience of being an instructor.C. Camp Invention is beneficial to cultivate children’s creativity.D. Sea Camp develops teenagers’ ability of independence.15.What can Sea Camp provide for teenagers?A.A series of water sports and performances.B.A suite of water sports and activities equipment.C.A set of scientific techniques to train surfing and sailing.D.A series of education in marine environments.第二节 (共5小题；每小题2分，满分10分)根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。
