New Species Fanged Frog,more

大学英语四级（2013年12月考试改革适用）模拟试卷284(题后含答案及解析)题型有：1. Writing 2. Listening Comprehension 3. Reading Comprehension 4. TranslationPart I Writing1．For this part, you are allowed 30 minutes to write a short essay entitled Do One Thing at a Time, And Do It Well by commenting on the saying, “I can do many things well at a time if given chances.” You should write at least 120 words but no more than 180 words. Do One Thing at a Time, And Do It Well 正确答案：Do One Thing at a Time, And Do It Well Though many of us often boast that “I can do many things well at a time if given chances”, in most cases, we would ultimately mess things up when we really have to handle many things at the same time. Such failure drives us to follow the principle that “do one thing at a time, and do it well”. At first glance, multitasking seems to be productive, but it actually splits our attention, making our work ineffective and unsuccessful. Image a student trying to win an English speech contest, play in the college football team, take an internship and write a graduation thesis in one single term. Rather than getting several things half-done, why not try to get one thing handsomely done? Once we fully concentrate on one thing without distraction, we can finish the task faster and better. And the previous good performance will give us more confidence to move forward, thereby creating a healthy circle. Success doesn’t depend on how many things we have done, but on how well we can get things done.解析：这篇谚语型作文要求考生结合“如果给予我机会，我可以同时把很多事情做好”这种说法展开讨论并发表白己的见解，并以“一次做一件事，并把它做好”为题。

拯救最后一批幸存的沃特蛙作者：来源：《疯狂英语·爱英语》2020年第02期沃特蛙是一种濒临灭绝的动物。

目前，野生动物活动者们在智利北部发现了14只沃特蛙。

动物研究专家们将要对这些青蛙实施保护措施，使其数量逐渐增多。

Wildlife activists say they have rescued what may be the world s last surviving members of a highly endangered species of water frog. They captured 14 Loa water frogs earlier this month in northern Chile，which are listed as “critically endangered”. The 14 frogs were in poor condition when they were discovered.The Loa water frogs are known to live only in a single body of water near Calama， in Chile. The city sits in the middle of the Atacama Desert， where water is in great demand. The frogs environment had mostly dried up because water is being taken away and used for human activities，including mining， agriculture a nd land development. “All of the frogs had been pushed into a tiny pool of muddy water，” the organization said. “The team collected the last 14 individuals and brought them to the National Zoo of Chile to start a conservation breeding program.”Zoo specialists are closely watching the small creatures and trying to give them everything they need to survive and be healthy. The team said it had contacted water frog experts from around the world to seek advice for their efforts. Zoo workers plan to launch a mating program for the frogs in an attempt to expand the population.“The first big challenge is to help these frogs survive，” said Alejandra Montalba， director of the National Zoo of Chile. “While the rescue has taken the best chance to save the Loa water frog，there are always risks with trying to care for a new species—especially when the animals are already struggling.”Conservation groups have called on Chile s government to take steps to halt any illegal water usage that threatens the frogs natural environment. They would also like to see creation of a government supported shelter to protect the animals.1. Why were the Loa water frogs in danger？A. They lacked enough food.B. Their living places were so narrow and wet.C. They were seriously hunted by human beings.D. They couldn t adapt to the changing environment.2. What s the attitude of Alejandra Montalba towards the surviving frogs？A. Neutral.B. Worried.C. Satisfied.D. Disappointed.3. What does the underlined word “halt” mean in the last paragraph？A. Stop.B. Change.C. Restore.D. Witness.難句分析While the rescue has taken the best chance to save the Loa water frog， there are always risks with trying to care for a new species—especially when the animals are already struggling. 尽管营救组已经抓住了最好的机会来拯救这些沃特蛙，然而，试图照顾好一种新物种，尤其是在它们已经处于灭绝的边缘时，总会存在着风险。

托福阅读：New lizard species discovered新物种的发现是人类的幸运，也是该物种的悲哀，为什么这么说？请大家自己体会……A new giant species of monitor lizard has been discovered in the forests of the Northern Philippines， scientists have said.The two-metre （6ft 6in）brightly coloured lizard is a secretive，fruit-eating species which was found in the forests of the heavily populated and largely deforested Luzon Island.The discovery of the monitor lizard was described as an "unprecedented surprise" by scientists documenting the find in the Royal Society Biology Letters journal.It has become rare to discover previously unknown species of larger animals， they said.The species （Varanus bitatawa） is restricted to the forests of the central and northern Sierra Madre range， where biologists have conducted relatively few surveys of reptiles and amphibians.Genetic tests revealed it was a different species from a closely related monitor lizard， from which it is geographically separated by three non-forested river valleys on the island.The researchers suggested it was a highly secretive species which never left forests to cross open areas.The scientists said the monitor lizards， which highlighted the "unexplored nature of the Philippines"，could become a flagship species for conservation efforts to preserve the remaining forests of the region.。

专题05 生态环保类序号内容Part 1 题型总览题型综述技巧点拨读相关词Part 2 真题感悟真题详解强重难词析长难句..Part 3 专题强化真题自测新题模拟P P a a r r t t11题题型型总总览览【题型综述】“生态环保”是普通高中英语课程标准话题之一，亦是高考英语常考话题。

本话题包括动植物保护、生态保护、自然灾害、环境污染和保护等方面。

这些话题与学生的生活息息相关，联系密切。

通过对这些话题的学习以及高考英语对这些话题的考查，可以让学生多注意身边的人和事、关注社会环境、树立环保意识、学会与大自然和谐相处。

【技巧点拨】1.运用语篇结构，概括全文主旨大意，明晰写作意图。

在阅读时，首先用略读法快速浏览每段的首尾句，分析原文的文本结构，然后根据作者谋篇布局的逻辑线索归纳主旨大意。

如果文章中含有标题、副标题、图片等，在概括全文主旨大意和写作目的时需要重点考虑。

根据英语说明文思维模式特征，作者一般都会开门见山，直奔主题。

结尾通常也是中心思想的概括，并与导语相呼应。

因此在做主旨大意、写作意图和最佳标题等题目时，需要重点关注首尾段落里面高频复现的词汇和内容。

导语、主体和结尾是有机整体，解题时要综合起来进行判断。

2.利用文中语境线索分析长难句，进行逻辑推理判断。

在阅读解题时，第一步可以浏览全文，掌握中心大意。

第二步可以根据题干要求，用查读法（scanning）再快速定位到相关段落。

第三步可以重点搜索段内的标志词，利用标志词所提供的逻辑关系找到细节信息，如数据、例子、原因和结果等。

如果句子成分复杂，有生词，也不要烦躁退缩，分析主句和从句或非谓语动词之间的关系，抓住行文逻辑的标志词，层层剖析，露出主干部分，就能明晰句意，弄懂作者的真实意图。

【读相关词】1.haze n. 雾霾2.conservation n. 保护3.recycle v．回收；循环利用4.ecological balance 生态平衡5.make proper use of 合理利用6.keep the balance of 保持……的平衡7.attach great importance to 十分重视8.bring ... under control 把……控制住9.be/bee aware of 意识到10.take the responsibility for/be responsible for 对……负责任11.mist n. 薄雾12.shortage n. 缺乏13.damage n．& vt. 毁坏，破坏14.destroy vt. 摧毁，破坏15.ruin vt. (使)毁坏；(使)毁灭n. (复)废墟；遗迹16.disappear vi. 消失17.threaten vt. 威胁18.be trapped in ruins 被困在废墟中19.rebuild one’s home 重建某人的家园20.extinct adj. 灭绝的21.preserve vt. 保护22.victim n. 牺牲品，受害者23.damage natural habitat 破坏自然栖息地24.endangered species濒危物种25.die out 灭绝26.natural reserve 自然保护区27.protect wildlife 保护野生动物28.cut down 砍倒29.raise the awareness of 唤醒……的意识30.live in harmony with 与……和谐相处31.pollute vt. 污染32.waste n. 废料33.rubbish n. 垃圾；废物34.litter n. 垃圾35.garbage n. 垃圾36.greenhouse effect 温室效应37.environmentally­friendly adj. 环保的38.advocate vt. 拥护，支持，提倡39.preserve vt. 保护，保留，保存40.limited natural resources 有限的自然资源41.alternative energy 替代能源42.in harmony with nature 与自然和谐共处43.live a low-carbon life 过低碳生活44.prevent ...from ... 阻止……做……45.raise one’s environmental awareness提高某人的环保意识46.save and treasure our resources 节约并珍惜我们的资源47.take action/steps/measures to do sth. 采取措施做某事48.call on/appeal to sb. to do sth. 号召/呼吁某人做某事P P a a r r t t22真真题题感感悟悟【2020·全国新课标II】When you were trying to figure out what to buy for the environmentalist on your holiday list, fur probably didn’t cross your mind. But some ecologists and fashion (时装)enthusiasts are trying to bring back the market for fur made from nutria(海狸鼠).Unusual fashion shows in New Orleans and Brooklyn have(showcased)nutria fur made into clothes in different styles. “It sounds crazy to talk about guilt-free fur-unless you understand that the nutria are destroying vast wetlands every year”, says Cree McCree, project director of Righteous Fur.Scientists in Louisiana were so concerned that they decided to pay hunters $5 a tail. Some of the fur ends up in the fashion shows like the one in Brooklyn last month.Nutria were brought there from Argentina by fur farmers and let go into the wild. “The ecosystem down there can’t handle this non-native species(物种).It’s destroying the environment. It’s them or us.”says Michael Massimi, an expert in this field.The fur trade kept nutria check for decades，but when the market for nutria collapsed in the late 1980s，the cat-sized animals multiplied like crazy.Biologist Edmond Mouton runs the nutria control program for Louisiana. He says it’s not easy to convince people that nutria fur is green, but he has no doubt about it. Hunters bring in more than 300,000 nutria tails a year, so part of Mouton’s job these days is trying to promote fur.Then there’s Righteous Fur and its unusual fashion. Morgan says，”To give people a guilt-free option that they can wear without someone throwing paint on them-1 think that’s going to be a massive thing, at least here in New York.”Designer Jennifer Anderson admits it took her a while to e around to the opinion that using nutria fur for her creations is morally acceptable. She trying to e up with a label to attach to nutria fashions to show it is eco-friendly.28．What is the purpose of the fashion shows in New Orleans and Brooklyn?A．To promote guilt-free fur.B．To expand the fashion market.C．To introduce a new brand.D．To celebrate a winter holiday.29．Why are scientists concerned about nutria?A．Nutria damage the ecosystem seriously.B．Nutria are an endangered species.C．Nutria hurt local cat-sized animals.D．Nutria are illegally hunted.30．What does the underlined word “collapsed”in paragraph 5 probably mean? A．Boomed.B．Became mature.C．Remained stable.D．Crashed.31．What can we infer about wearing fur in New York according to Morgan?A．It’s formal.B．It’s risky.C．It’s harmful.D．It’s traditional.【答案】28．A29．A30．D31．B【解析】本文是说明文。

Unit 2 Wildlife Protection 拓展阅读专项训练（二）刷阅读理解体裁：说明文题材：科学技术词数：288 难度：中建议用时：8分钟[豫东名校2019高一联考]With their furry round heads and big black eyes, Zhongzhong and Huahua look just the same as any other monkey. But they happen to be the world’s first cloned monkeys.Years ago, scientists used cloning techniques to produce Dolly, the world’s first cloned mammal（哺乳动物）. They now used the same techniques to produce the monkeys in China.In animal cloning, animals are produced in a lab by using DNa that is taken from the cells of a naturally-born animal. To clone Zhongzhong and Huahua, scientists from the Chinese Academy of Sciences first removed the nucleus（细胞核）from a monkey’s egg cell. They then put another nucleus taken from the monkey’s body cells into the egg cell. The newly-formed egg was put into the womb（子宫）of a female monkey. Finally, Zhongzhong and Huahua were born.The cloning process is hard, especially removing the nucleus. It needs to be done in a fast and precise（精确的）way. The faster you do it, the less damage is done to the egg, according to CAS. Scientist Liu Zhen spent three years practising removing the nucleus.Unlike common monkeys, them unlike common monkeys, cloned monkeys have the same DNA as each other. When doing experiments on them, scientists can easily know that certain results are caused by different treatments, rather than different genes.According to Sun Qiang from CAS, most drug trials（药物试验）are done on lab mice. However, drugs that work on mice might not work on humans. The two species are very different.“Monkeys and humans are closely related and testing on monkeys is supposed to be as effective as testing on humans,” Sun added.1. What can we learn about Zhongzhong and Huahua?A. They are naturally-born monkeys.B. They are the world’s first cloned mammals.C. They are the world’s first cloned monkeys.D. They are twin sheep that were born by dolly.2. What do we know about the two monkeys?A. They look different from other monkeys.B. They have the same DNA.C. Their body cells don’t have any nucleus.D. They can live for only three years.3. What can we learn from Paragraph 4?A. Removing the nucleus is difficult.B. The cloning process is very safe.C. It took three years to remove the nucleus.D. It is impossible to clone other animals.4. Why do scientists want to do drug tests on monkeys?A. Because it’s easier to use them for tests.B. Because there are not enough mice.C. Because drugs work well on monkeys.D. Because monkeys are similar to humans.刷完形填空体裁：记叙文题材：动物保护词数：275 难度：中建议用时：17分钟When we rescued her, we didn’t know Serenity was pregnant until we saw her newborn on the ground. We stood at a short distance to 1 this miracle of life with her. But 2 she realised we drew near, Serenity did something we would never have 3 : she stepped over her baby, positioned herself on top of him, and looked at us with 4 , begging us silently not to take him away from her.We instantly stepped 5 so she would not feel afraid. From then on, we gave Serenity and Rumi as much 6 as we could. When we had to clean their house, we did not look at the little cow, to seem non-frightening, and we kept telling Serenity that they would never be 7 for the rest of their lives.As the 8 passed, now Serenity realised that we were not going to take away her son and she began to get 9 and trust us. She finally even allowed us to pet her son. Now her son is seven years old and has his friends and activities, but Serenity is never far away and always paying 10 attention to him.We saved Serenity from a slaughterhouse（屠宰场）and thank goodness we did because a few weeks later she gave 11 to her son, Rumi. That was when we learnt that most dairy cows are sent 12 pregnant to the slaughterhouse so that they weigh more, thus 13 more money. How 14 the dairy industry was to separate mums from babies! They want and love their babies as much as we do. All babies should be raised with love, safety, and their 15 , no matter what species they are.1. A. predict B. celebrate C. attend D. deliver2. A. suddenly B. shortly C. immediately D. finally3. A. experienced B. expected C. operated D. known4. A wonder B. relief C. surprise D. fear5. A. forward B. in C. down D. back6. A. care B. distance C. food D. water7. A. killed B. parted C. taken D. frightened8. A. days B. months C. hours D. years9. A. relaxed B. amazed C. excited D. disappointed10. A. close B. simple C. occasional D. rare11. A. way B. hand C. expression D. birth12. A. originally B. temporarily C. deliberately D. unwillingly13. A. taking in B. bringing in C. making up D. giving away14. A. cruel B. silly C. wise D. ridiculous15. A. doctor B. owner C. father D. family答案：刷阅读理解【语篇导读】本文是一篇说明文。

备考2023年高考英语二轮专题：阅读理解（自然与环保）一、阅读理解(共40题；共80分)阅读下列短文，从每题所给的四个选项（A、B、C 和D）中，选出最佳选项。

Curtin University research has found a simple and affordable method to determine which chemicals and types of metals are best used to store and supply energy, in a breakthrough for any battery-run devices and technologies relying on the fast and reliable supply of electricity, including smart phones and tablets.Lead author Associate Professor Simone Ciampi from Curtin's School of Molecular and Life Sciences said this easy, low-cost method of determining how to produce and keep the highest energy charge in a capacitor (电容器) could be of great benefit to all scientists, engineers and start-ups looking to solving the energy storage challenges of the future."All electronic devices require an energy source. While a battery needs to be recharged over time, a capacitor can be charged instantly because it stores energy by separating charged ions (离子), found in ionic liquids, " Ciampi said.There are thousands of types of ionic liquids, a type of "liquid salt", and until now, it was difficult to know which would be best suited for use in a capacitor. What our team has done is designing a quick and easy test, able to be performed in a basic lab, which can measure both the ability to store charge when a solid electrode touches a given ionic liquid—a simple capacitor—as well as the stability of the device when charged."The simplicity this test means anyone can apply it without the need for expensive equipment. Using this method, researchers found that charging the device for 60 seconds produced a full charge, which did not ‘leak' (渗漏) and begin to diminish for at least four days, " Mr Belotti said.The next step is to use this new screening method to find ionic liquid with an even longer duration in the charged state and larger energy density.1．（2分）What can the new method be used to do in the future?A．Help to choose smart phones.B．Find materials used as energy.C．Research energy sources of the future.D．Settle the problem of storing energy.2．（2分）What was the challenge in making a capacitor?A．Choosing the best ionic liquid.B．Figuring out the storing ability.C．Devising a quick and easy test.D．Recharging a battery instantly.3．（2分）What does the underlined word "diminish" in paragraph 5 probably mean?A．Charge.B．Develop.C．Decrease.D．Expand.4．（2分）What would be a suitable title for the text?A．The Importance of Selecting Ionic LiquidB．A Good Method to Seek Perfect Ionic LiquidC．Types of Ionic Liquids for Use in a CapacitorD．A Simple and Affordable Battery阅读短文，回答问题When a chunk of ice fell from a collapsing glacier(冰川)on the Swiss Alps' Mount Eiger in 2017, part of the long deep sound it produced was too low for human ears to detect. But these vibrations held a key to calculating the ice avalanche's(崩塌)critical characteristics.Low-frequency sound waves called infrasound that travel great distances through the atmosphere are already used to monitor active volcanoes from afar. Now some researchers in this field have switched focus from fire to ice: dangerous blocks snapping off glaciers. Previous work has analyzed infrasound from snow avalanches but never ice, says Boise State University geophysicist Jeffrey Johnson. "This was different," Johnson says. "A signature of a new material has been detected with infrasound."Usually glaciers move far too slowly to generate an infrasound signal, which researchers pick up using detectors that track slight changes in air pressure. But a collapse—a sudden, rapid breaking of ice from the glacier's main body—is a prolific infrasound producer. Glacial collapses drive ice avalanches, which pose an increasing threat to people in mountainous regions as rising temperatures weaken large fields of ice. A glacier "can become detached from the ground due to melting, causing bigger break— offs," says University of Florence geologist Emanuele Marchetti, lead author of the new study. As the threat grows, scientists seek new ways to monitor and detect such collapses.Researchers often use radar to track ice avalanches, which is precise but expensive and can monitor only one specific location and neighboring avalanche paths. Infrasound, Marchetti says, is cheaper and can detect break—off events around a much broader area as well as multiple avalanches across a mountain. It is challenging, however, to separate a signal into its components (such as traffic noises, individual avalanches and nearby earthquakes) without additional measurements, says ETH Zurich glaciologist Malgorzata Chmiel. "The model used by Marchetti is a first approximation for this," she says. Isolating the relevant signal helpsthe researchers monitor an ice avalanche's speed, path and volume from afar using infrasound.Marchetti and his colleagues are now working to improve their detectors to pick up more signals across at-risk regions in Europe, and they have set up collaborations around the continent to better understand signals that collapsing glaciers produce. They are also refining their mathematical analysis to figure out each ice cascade's physical details.5．（2分）What can we learn from Paragraph 2 and Paragraph 3?A．Infrasound has a major role to play in discovering new materials.B．Ice avalanches are a bigger threat to people than volcanic eruptions.C．Researchers are trying to use infrasound in detecting ice avalanches.D．Scientists employ infrasound more in mountain areas than in other places.6．（2分）Which is an advantage of infrasound over radar?A．The combination with other relevant signals.B．The accuracy in locating a certain avalanche.C．The ability in picking up signals in wider areas.D．The sensitivity in tracking air pressure changes.7．（2分）The underlined word "this" in Paragraph 4 refers to________.A．distinguishing different components of a signalB．detecting multiple avalanches at the same timeC．calculating the speed and path of ice avalanchesD．monitoring the specific location of ice break—offs8．（2分）Which of the following would be the best title for the passage?A．From Fire to Ice B．Glacier WhispersC．Nature is Warning D．Secret of Ice Avalanches阅读理解Hoping to live on the moon one day? Your chances just got a tiny bit better. Researchers found that lunar pits and caves reach stable temperatures, making them potentially suitable for human life.Planetary scientists at the University of California, Los Angeles have been doing the research. Although much of the moon's surface temperatures ranges from as high as 260 degrees during the day to as low as 280 degrees below zero at night, the moon has pits and caves where temperatures stay at roughly 63 degrees Fahrenheit, making human habitation a possibility, according to their new research.For perspective, a day or night on the moon equals a little over two weeks on the earth—making long-term research and habitation difficult with such extremely hot and cold temperatures. Researchers say these stable spots could transform the future of lunar exploration and long-term habitation. The shadowed areas of these pits could also offer protection from harmful elements, such as solar radiation, universal rays and micrometeorites (微小陨石).About 16 of the over 200 discovered pits most likely come from collapsed lava tubes—tunnels that form from cooled lava or crust, according to Tyler Horvath, a UCLA doctoral student and head of the research. The researchers think overhangs inside of these lunar pits, which were initially discovered in 2009, could be the reason for the stable temperature.The research team also includes UCLA professor of planetary science David Paige and Paul Hayne at the University of Colorado Boulder. "Humans evolved living in caves, and to caves we might return when we live on the moon," said Paige in a UCLA press release.There are still plenty of other challenges to establishing any sort of long-term human residence on the moon—including growing food and providing enough oxygen. The researchers made clear that NASA has no immediate plans to establish a base camp or habitations there.9．（2分）What did the researchers find?A．Humans like the life on the moon.B．People lived in lunar pits and caves.C．Steady temperature exists somewhere on the moon.D．Temperatures in caves and pits vary a lot on the moon.10．（2分）What do the shadowed areas act as protection against?A．Solar heat.B．Harmful liquids.C．Universal gases.D．Micrometeorites.11．（2分）What does the underlined word "evolved" probably mean in paragraph 5?A．Appeared.B．Developed.C．Hunted.D．Escaped.12．（2分）Why does NASA not establish any habitation there at present?A．It has no such plans.B．Food there tastes bad.C．Many challenges exist.D．There is no oxygen.阅读理解A new study combining linguistic, genetic and archaeological evidence has traced the origins of thefamily of languages including modern Japanese, Korean, Turkish and Mongolian and the people who speak them to millet (粟) farmers who inhabited a region in northeastern China about 9, 000 years ago.The findings detailed on Wednesday document a shared genetic ancestry for the hundreds of millions of people who speak what the researchers call Transeurasian languages across an area stretching more than 8, 000 kilometers.The findings illustrate how humankind's embrace of agriculture following the Ice Age powered the movements of some of the world's major language families. Millet was an important early crop as hunter-gatherers transitioned to an agricultural lifestyle.There are 98 Transeurasian languages. This language family's beginnings were traced to millet farmers in the Liao River valley, an area including parts of the Chinese provinces of Liaoning and Jilin and the region of Inner Mongolia. As these farmers moved across northeastern Asia, the descendant languages spread north and west into Siberia and east into Korea and over the sea to Japan over thousands of years.The research stressed the complex beginnings for modern populations and cultures."Accepting that the roots of one's language, culture or people lie beyond the present national boundaries is a kind of surrender of identity, which some people are not yet prepared to make," said comparative linguist Martine Robbeets, lead author of the study published in the journal Nature."Powerful nations such as Japan, Korea and China are often pictured as representing one language, one culture and one genetic profile. But a truth is that all languages, cultures and humans, including those in Asia, are mixed," Robbeets added.The origins of modem Chinese languages arose independently, though in a similar fashion, with millet also involved. While the ancestors of the Transeurasian languages grew millet in the Liao River valley, the originators of the Sino-Tibetan language family farmed millet at roughly the same time in China's Yellow River region, paving the way for a separate language expansion.13．（2分）What is the new study mainly about?A．The migration routes of millet farmers.B．The ancient origins of a large language family.C．The different ancestries of Transeurasian speakers.D．The shared features of some neighboring languages.14．（2分）What fueled the spread of Transeurasian languages?A．The transition of power.B．The diversity of lifestyles.C．The interaction of cultures.D．The adoption of farming.15．（2分）According to Robbeets, who may feel uncomfortable about the new findings?A．Those from agricultural countries.B．Those who deny their cultural identity.C．Those with a strong sense of nationalism.D．Those who are afraid to cross boundaries.16．（2分）What is the main function of the last paragraph?A．To draw a conclusion.B．To present likely consequences.C．To highlight the theme.D．To offer additional information.阅读理解A "secretive" new species of frog has been discovered on the forest floor in India's Western Ghat mountain range. Named the starry dwarf frog after the markings on its dark brown back, it is just 2 centimeters long.The frog, whose closest relatives are a group of species native to India and Sri Linka, is the only member of an ancient lineage (血统) dating back to millions of years ago, according to researchers from India and the US. It is unclear whether the species is descended from African or Asian frogs.A group of Indian and US researchers first came across the local species hidden in leaf-litter as part of a wider project to look for new frogs, lizards and snakes in the richly biodiverse region and stored it in a jar for later study. Genetic testing and a closer look at its shape, colouring and other features has shown that it doesn't match any existing species.Kartik Shanker of the Indian Institute of Science, who helped design the study, says while it is common to find new frogs in India, this one needs to be noticed. "This particular species not just is a new species, but also belongs to a new genus (属), and that makes it a little more special, " says Shanker.The number of known species of frog identified in India has climbed from around 200 to above 400 over the past two decades. While many species new to science are frequently immediately sorted as endangered, it is too early to say whether the starry dwarf frog is threatened. "They are very secretive," says Shanker, adding that the team didn't know the size of its population. The frog is active at night and lives near water.Habitat loss is a serious risk to frogs in tropical forests around the world, alongside threats such as a deadly fungus (真菌) that has been killing off amphibians (两栖动物) for the past four decades. But the newspecies was found in a reserved forest, meaning it will enjoy a degree of protection by Indian government agencies.17．（2分）What can we learn from paragraph 3?A．The species was discovered by tourists.B．The species was found in a rich region.C．The species was finally set free.D．The species was further studied.18．（2分）What can we say about the new frog?A．It is in small quantities.B．It is an endangered species.C．It is well worth attention.D．It is related to African or Asian frogs.19．（2分）What can be inferred from the last paragraph?A．Habitat loss is the chief threat to frogs.B．The new species may face less dangers.C．Tropical forests in India are all under protection.D．The Indian government determines to save frogs.20．（2分）Which of the following is a suitable title for the text?A．A rare frog species protected in IndiaB．A rise in species of frog seen in IndiaC．A secretive frog species discovered in IndiaD．A risk of habitat loss for frogs removed in India阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项。

最新高考英语阅读理解(科普环保)解题技巧分析及练习题(含答案)一、高中英语阅读理解科普环保类1．犇犇阅读短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项。

A new study from brain researchers helps explain how the human brain evolved or changed over time, to permit people to speak and write.Michael Ullman, the lead researcher, a professor at Georgetown University Medical School in Washington, D.C, has been studying language learning for more than 20 years.Ullman says his research shows that the human brain does not have a special area or system for making language. Over time we have simply reused or co-opted (指派) parts of our brain for language. And those parts, he says, are ancient-older even than humans themselves."This study examines the theoretical framework (准则) that language is learned, stored and' processed in two ancient learning and memory systems in the brain."Ullman, Hamrick and the rest of the team looked at data from 16 other studies on language. They found that people learn language using two memory systems: declarative and procedural. Memorizing vocabulary, for example, is a declarative memory process. But learning grammar is, mostly, a procedural memory process."Declarative memory, in humans at least, is what we think of as learning memory', such as, 'Oh, remember what you said last night' or things like that. And procedural motor memory is what we often call motor memory' such as how you learn to ride a bicycle." Or, Ullman adds, "These procedural memory skills become so deeply leaned that we are no longer aware that we are doing them."However, Ullman explains that the two long-term memory systems can share tasks. And, he adds, the adult brain uses the systems to learn language a bit differently than a child's brain. "Adult language learners of a second language may use their declarative memory for using grammar patterns. They think about it purposefully. For a child, the grammar may come more naturally. They don't have to think about the grammar rules before speaking."In addition to language learners, Ullman's study could help people who have a brain injury that affects speaking and writing. This knowledge can also help those who have learning disabilities such as dyslexia (阅读障碍). People with dyslexia have difficulty recognizing words and symbols accurately.（1）How did Ullman study human's memory systems?A. By examining the brain with his team.B. By studying language learning over years.C. By comparing different languages year after year.D. By referring to data from other studies on language.（2）Which of the following is an example of "motor memory"?A. Learning to make a model plane.B. Remembering the grammar patternsC. Repeating what you heard.D. Memorizing what you read.（3）What does the underlined word "it" refer to?A. Declarative memory.B. An adult language learner.C. Using grammar patterns.D. A second language.（4）What's the main idea of the text?A. Ullman has advanced our language understanding.B. A new research helps people learn a new language.C. Learning memory is more active than motor memory.D. Human beings learn language in pre human area of brain.【答案】（1）D（2）A（3）C（4）D【解析】【分析】本文是一篇说明文，讲述Michael Ullman和他的团队的研究称人类大脑前区的为语言学习区，由此解开了人类大脑进化过程之谜。

2017年6月四级考试真题（第二套）Part I Writing (30 minutes) ．Directions: 的r this part, y ll d 30· ·ou are a owe minutes to write an advertisement on your campus website to sell a bicycle you used at college. Your advertisement may include its brand, features, condition and price, and yourcontact information. You should write at least 120 words but no rrwre than 180 words.Part II Listening ComprehensionSection A．Directions: In th· is section, you will hear three news reports. At the end of each news report, you willhear two or three questions. Both the news report and the questions will be spoken onlyonce. After you hear a question, you must choose the best answer from the four choicesmarked A), B), C) and D). Then mark the corresponding letter on Answer Sheet Iwith a single line through the centre.Questions I and 2 are based on the news report you have just heard.(25 minutes)1.A) The man in the car was absent-minded.B)The test driver made a wrong judgement.C)The self-driving system was faulty.D)Th e car was movmg at a fast speed.2.A) They have done better than convent10nal cars.B)They have caused several severe crashes.C)They have posed a threat to other drivers.D)They have generally done quite well.Questions 3 and 4 are based on the news report you have just heard.3.A) He works at a national park.B)He is a queen bee specialist.C)He removed the bees from the boot.4.A) They were looking after the queen.C)They were looking for a new box to live in.D)He drove the bees away from his car.B)They were making a lot of noise. D)They were dancing in a unique way.Questions 5 to 7 are based on the news report you have just heard.5.A) The discovery of a new species of snake.B)The second trip to a small remote island.C)The finding of two new species of frog.D)The latest test on a rare animal species.6.A) A poisonous snake attacked him on his field trip.B)He discovered a rare frog on a deserted island.C)A snake crawled onto his head in his sleep.D)He fell from a tall palm tree by accident.7.A) From its genes.C)From its origin. Section B B)From its length.D)From its colour.．Directions: In讥is section, you will hear two long conversations.At the end of each conversation, you will hear four questions.Both the conversation and the questions will be spoken only once.After you hear a question, youmust choose the best answer from the four choices marked A) , B) , C) and D) Then mark thecorresponding letter on Answer Sheet 1 with a single line through the centre.Questions 8 to 11 are based on the conversation you have just heard.8.A) The security check takes time.B)He has to check a lot of luggage.C)His flight is leaving in less than 2 hours.D)The airport is a long way from the hotel.9.A) In cash.C)With his smart phone.B)By credit card.D)With a traveler's check.10.A) Give him a receipt.B)Confirm his flight.C)Look after his luggage.D)Find a porter for him.11.A) Signing up for membership of Sheraton Hotel.B)Staying in the same hotel next time he comes.C)Loading her luggage onto the airport shuttle.D)Posting a comment on the hotel's webpage.Questions 12 to 15 are based on the conversation you have just heard.12.A) He is the only boy in his family.B)He becomes tearful in wind.C)He has stopped making terrible faces.D)He is his teacher's favorite student.13.A) Tell him to play in her backyard.B)Do something funny to amuse him.C)Give him some cherry stones to play with.D)Warn him of danger by making up a story.14.A) They could break people's legs.B)They could sometimes terrify adults.C)They could fly against a strong wind.D)They could knock people unconscious.15.A) One would get a spot on their tongues if they told a lie deliberately.B)One would have to shave their head to remove a bat in their hair.C)One would go to prison if they put a stamp on upside down.D)One would have curly hair if they ate too much stale bread.Section C．Directions: In this section, you will hear three passages. At the end of each passage ,you will hear three or four questions. Both the passage and the questions will be spoken only once. After you hear a question, you mustchoose the best answer from the four choices marked A) , B) , C) and D) . Then mark the correspondingletter on Answer Sheet 1 with a single line through the centre.Questions 16 to 18 are based on the passage you have just heard.16.A) Everything seemed to be changing.B)People were formal and disciplined.C)People were excited to go traveling overseas.D)Things from the Victorian era came back alive.17.A) Watching TV at home.B)Meeting people.C)Drinking coffee.D)Trying new foods.18.A) He was interested in stylish dresses.B)He was able to make a lot of money.C)He was a young student in the 1960s.D)He was a man full of imagination.Questions 19 to 21 are based on the passage you have just heard.19.A) They avoid looking at them.B)They run away immediately.C)They show anger on their faces.20.A) It turns to its owner for help.D)They make threatening sounds.B)It turns away to avoid conflict.C)It looks away and gets angry too.D)It focuses its eyes on their mouths.21.A) By observing their facial features carefully.B)By focusing on a particular body movement.C)By taking in their facial expressions as a whole.D)By interpreting different emotions in different ways.Questions 22 to 25 are based on the passage you have just heard.22.A) They have to look for food and shelter underground.B)They take little notice of the changes in temperature.C)They resort to different means to survive the bitter cold.D)They have difficulty adapting to the changed environment.23.A) They have their weight reduced to the minimum.B)They consume energy stored before the long sleep.C)They can maintain their heart beat at the normal rate.D)They can keep their body temperature warm and stable.24.A) By staying in hiding places and eating very little.B)By seeking food and shelter in people's houses.C)By growing thicker hair to stay warm.D)By storing enough food beforehand.25.A) To stay safe.B)To save energy.C)To keep company.D)To protect the young.Part ID Reading Comprehension (40 minutes) Section ADirections: In this section, there is a passage with ten blanks. You are required to select one word for each blank f rom a list of choices given in a word bank following the passage. Read the passage through carefully before makingyour choices. Each choice in the bank is identified by a letter. Please mark the corresponding letter for eachitem on Answer Sheet 2 with a single line through the centre. You may not use any of the words in the bankmore than once.America's Internet is faster than ever before, but people still complain about their Internet being too slow.New York's Attorney General's office 26 an investigation in the fall into whether or not Verizon, Cablevision and Time Warner are delivering broadband that's as fast as the providers 27 it is. Earlier this month ,the office asked for the public's help to measure their speed results ,saying consumers 28 to get the speeds they were promised. "Too many of us may be paying for one thing, and getting another, " the Attorney General said.If the investigation uncovers anything, it wouldn't be the fast time a telecom provider got into 29 over the broadband speeds it promised and delivered customers. Back in June, the Federal Communications Commission fined AT&T MYMlOO million over 30 that the carrier secretly reduced wireless speeds after customers consumed a certain amount of 31 .Even when they stay on the right side of the law, Internet providers arouse customers'anger over bandwidth speed and cost. Just this week, an investigation found that media and telecom giant Comcast is the most 32 provider. Over 10 months, Comcast received nearly 12,000 customer complaints, many 33 to its monthly data cap and ove ra ge (超过额度的）charges.Some Americans are getting so 34 with Internet providers they're just giving up. A recent study found that the number of Americans with high-speed Internet at home today 35 fell during the last two years, and 15% of people now consider themselves to be "cord-cutters. "Section B A)accusat10nsD)commumcatmgG)deservedJ)launchedM)troubleB)actuallyE)complainH)frustratedK)relatingN)usuallyC)claimF)dataI)hatedL)timesO)worriedDirections : In this section ,you are going to read a passage with ten statements attached to it. Each statement contains 叫ormation given in one of the paragraphs. Identify the paragraph from w加h the information is derived.You may choose a paragraph more than once. Each paragraph is marked with a letter. Answer the questionsby marking the corresponding letter on Answer Sheet 2.From Accountant to Yogi: Making a Radical Career ChangeA)At some point, almost all of us will experience a period of radical professional change. Some of us will seek itout; for others it will feel like an unwelcome intrusion into otherwise stable careers. Either way, we have choices about how we respond to it when it comes.B)We recently caught up with yoga entrepreneur Leah Zaccaria, who put herself through the fire of change tocompletely reinvent herself. In her search to live a life of purpose, Leah left her high-paying accounting job, her husband, and her home. In the process, she built a radically new life and career. S ince then, she has founded two yoga studios, met a new life partner, and formed a new community of people. Even if your personal reinvention is less drastic, we think there are lessons from her experience that apply.C)Where do the seeds of change come from? The Native American Indians have a saying: "Pay attention to the whispers so you won't have to hear the screams. "Often the best ideas for big changes come from unexpected places—it's just a matter of tuning in. Great leaders recognize the weak signals or slight signs that point to big changes to come. Leah reflects on a time she listened to the whispers: "About the time my daughter was five years old, I started having a sense that'this isn't right. "'She then realized that her life no longer matched her vision for it.D)Up until that point, Leah had followed traditional measures of success. After graduating with a degree in business and accounting, she joined a public accounting frrm, married, bought a house, put lots of stuff in it, and had a baby. " I did what everybody else thought looked successful ," she says. Leah easily could have fallen into a trap of feeling content; instead, her energy sparked a period of experimentation and renewal.E)Feeling the need to change, Leah started playing with future possibilities by exploring her interests anddeveloping new capabilities. First trying physical exercise and dieting, she lost some weight and discovered an inner strength. "I felt powerful because I broke through my own limitations, " she recalls.F)However, it was another interest that led Leah to radically reinvent herself. "I remember sitting on a bench with my aunt at a yoga studio, " she said, "and having a moment of clarity right then and there: Yoga is saving my life. Yoga is waking me up. I'm not happy and I want to change and I'm done with this. "In that moment of clarity Leah made an important leap , conquering her inner resistance to change and making a firm commitment to take bigger steps.G)Creating the future you want is a lot easier if you are ready to exploit the opportunities that come your way. When Leah made the commitment to change, she primed herself to new opportunities she may otherwise have overlooked. S he recalls:H)One day a man I worked with, Ryan, who had his office next to mine, said, "Leah, let's go look at this space on Queen Anne. " He knew my love for yoga and had seen a space close to where he lived that he thought might be good to serve as a yoga studio. As soon as I saw the location, I knew this was it. Of course I was scared, yet I had this strong sense of "I have to do this. "O nly a few months later Leah opened her first yoga studio, but success was not instant.I)Creating the future takes time. That's why leaders continue to manage the present while building toward the big changes of the future. When it's time to make the leap, they take action and immediately drop what's no longer serving their purpose. Initially Leah stayed with her accounting job while starting up the yoga studio to make it all work.J) Soon after, she knew she had to make a bold move to fully commit to her new future. Within two years, Leah shed the safety of her accounting job and made the switch complete. S uch drastic change is not easy.K) Steering through change and facing obstacles brings us face to face with our fears. Leah reflects on one incident that triggered her fears, when her investors threatened to shut her down: "I was probably up against the most fear I've ever had," she says. "I had spent two years cultivating this community, and it had become successful very fast, but within six months I was facing the prospect of losing it all. "L)She connected with her sense of purpose and dug deep, cultivating a tremendous sense of strength. " I was feeling so intentional and strong that I wasn't going to let fear just take over. I was thinking,'OK, guys, if you want to try to shut me down, shut me down.'And I knew it was a negotiation scheme ,so I was able to say tomyself,'This is not real.'" By naming her fears and facing them head-on, Leah gained confidence. For most of us, letting go of the safety and security of the past gives us great fear. Calling out our fears explicitly, as Leah did, can help us act decisively.M)The cycle of renewal never ends. Leah's growth spurred her to open her second studio—and it wasn't for the money.N)I have no desire to make millions of dollars. It's not about that; it's about growth for me. Honestly, I didn't need to open a second studio. I was making as much money as I was as an accountant. But I know if you don't grow, you stand still, and that doesn't work for me.0)Consider the current moment in your own life, your team or your organization. Where are you in the cycle ofrenewal: Are you actively preserving the present, or selectively forgetting the past, or boldly creating the future?What advice would Leah give you to move you ahead on your journey? Once we're on the path of growth, we can continually move through the seasons of transformation and renewal.36. R eadiness to take advantage of new opportunities will make it easier to create one's desired future.37. B y conventional standards, Leah was a typical successful woman before she changed her career.38. L eah gained confidence by laying out her fears and confronting them directly.39. I n search of a meaningful life, Leah gave up what she had and set up her own yoga studios.40. L eah's interest in yoga prompted her to make a frrm decision to reshape her life.41. S mall signs may indicate great changes to come and therefore merit attention.42. L eah's frrst yoga studio was by no means an immediate success.43. S ome people regard professional change as an unpleasant experience that disturbs their stable careers.44. The worst fear Leah ever had was the prospect of losing her yoga business.45. A s she explored new interests and developed new potentials, Leah felt powerful internally.Section CDirections: There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A) , B), C) and D). You should decide on the best choice andmark the corresponding letter on Answer Sheet 2 with a single line through the centre.Passage OneQuestions 46 to 50 are based on the following passage.Urbanization—migration away from the suburbs to the city center—will be the biggest real estate trend in 2015, according to a new report.The report says America's urbanization will continue to be the most significant issue affecting the industry, as cities across the country imitate the walkability and transit-oriented development making cities like New York and San Francisco so successful.As smaller cities copy the model of these "24-hour cities," more affordable versions of these places will be created. The report refers to this as the corning of the "18-hour city," and uses the term to refer to cities like Houston, Austin, Charlotte, and Nashville, which are "positioning themselves as highly competitive, in terms of livability, employment offerings, and recreational and cultural facilities. "Another trend that looks significant in 2015 is that America's largest population group, Millennials (千禧一代），will continue to put off buying a house. Apartments will retain their appeal for a while for Millennials, haunted by what happened to home-owning parents.This trend will continue into the 2020s, the report projects. After that, survey respondents disagree overwhether this generation will follow in their parents'footsteps, moving to the suburbs to raise families, or will choose to remain in the city center.Another issue affecting real estate in the coming year will be America's failing infrastructure. Most roads,bridges , transit , water systems , the electric grid , and communications networks were installed 50 to 100 years ago ,and they are largely taken for granted until they fail.The report's writers state that America's failure to invest in infrastructure impacts not only the health of the real­estate market, but also our ability to remain globally competitive.Apart from the specific trends highlighted above, which cause some investors to worry, the report portrays anoverall optimism borne by the recent healthy real-estate "upcycle" and improving economy. Seventy-four percent ofthe respondents surveyed report a" g ood to excellent" expectation of real-estate profitability in 2015. While excessive optimism can promote bad investment patterns, resulting in a real-estate "bubble, " the report's writers downplay thatpotential outcome in that it has not yet occurred. 46. According to the new report, real estate development in 2015 will witness .A)an accelerating speedB)a shift to city centersC)a new focus on small citiesD)an ever-increasing demand47. What characterizes "24-hour cities" like New York?A)People can live without private cars.B)People are generally more competitive.C)People can enjoy services around the clock.D)People are in harmony with the environment.48. Why are Millennials reluctant to buy a house?A)They can only afford small apartments.B)The house prices are currently too high.C)Their parents'bad experience still haunts them.D)They feel attached to the suburban environment.49. What might hinder real estate development in the U.S. ?A)The continuing economic recession in the country.B)The lack of confidence on the part of investors.C)The fierce global competition.D)The worsening infrastructure.50. How do most of the respondents in the survey feel about the U.S. real-estate market in 2015?A)Pessimistic.C)Cautious.Passage TwoB)Hopeful.D)Uncertain.Questions 51 to 55 are based on the following passage.The brain is a seemingly endless library, whose shelves house our most precious memories as well as ourlifetime's knowledge. But is there a point where it reaches capacity? The answer is no, because brains are more sophisticated than that. Instead of just crowding in, old informationis sometimes pushed out of the brain for new memories to form.Previous behavioural studies have shown that learning new information can lead to forgetting. But in a newstudy , researchers demonstrated for the first time how this effect occurs in the brain.In daily life, forgetting actually has clear advantages. Imagine, for instance, that you lost your bank card. Thenew card you receive will come with a new personal identification number (PIN). Each time you remember the new PIN, you gradually forget the old one. This process improves access to relevant information, without old memories interfering.And most of us may sometimes feel the frustration of having old memories interfere with new, relevant memories. Consider trying to remember where you parked your car in the same car park you were at a week earlier. This type of memory (where you are trying to remember new, but similar information) is particularly vulnerable to interference.When we acquire new information, the brain automatically tries to incorporate (合并）it within existing information by forming associations. And when we retrieve (检索）information ,both the desired and associated but irrelevant information is recalled.The majority of previous research has focused on how we learn and remember new information. But current studies are beginning to place greater emphasis on the conditions under which we forget, as its importance begins to be more appreciated.A very small number of people are able to remember almost every detail of their life. While it may sound like an advantage to many, people with this rare condition often find their unusual ability burdensome.In a sense ,forgetting is our brain's way of sorting memories ,so the most relevant memories are ready for retrieval. Normal forgetting may even be a safety mechanism to ensure our brain doesn't become too full.51.What have past behavioural studies found about our brain?A)Its capacity actually knows no limits.B)It grows sophisticated with practice.C)It keeps our most precious memories until life's end.D)New information learned pushes old information out.52.What is the benefit of forgetting?A)It frees us from painful memories.B)It helps slow down our aging process.C)It fac1htates our access to relevant information.D)It prevents old information from forming associations.53.What is the emphasis of current studies of memory?A)When people tend to forget.B)What contributes to forgetting.C)How new technology hinders memory capacity.D)Why learning and forgetting are complementary.54.What do people find about their rare ability to remember every detail of their life?A)It adds to the burden of their memory.B)It makes their life more complicated.C)It contributes to their success in life.D)It constitutes a rare object of envy.55.What does the passage say about forgetting?A)It can enlarge our brain capacity.B)It helps get rid of negative memories.C)It is a way of organising our memories.D)It should not cause any alarm in any way.Part IV Translation (30 minutes)Directions : 几r this part, you are allowed 30 minutes to translate a passage from Chinese into English. You should write your answer on Answer Sheet 2.黄河是亚洲第三、世界第六长的河流。

话题二野生动物爱护Ⅰ.阅读理解AEvery year more people recognize that it is wrong to kill wildlife for “sport”. Progress in this direction is slow because shooting is not a sport for watching，and only those few who take part realize the cruelty and destruction.The number of gunners, however, grows rapidly. Children too young to develop proper judgements through independent thought are led a long way away by their gunning parents. They are subjected to advertisements of gun producers who describe shooting as good for their health and gun­carrying as a way of putting redder blood in the veins (血管)．They are persuaded by gunner magazines with stories honouring the chase and the kill. In school they view motion pictures which are supposedly meant to teach them how to deal with arms safely but which are actually designed to stimulate (刺激) a desire to own a gun.Wildlife is disappearing because of shooting and because of the loss of wildland habitat (栖息地). Habitat loss will continue with our increasing population, but can we slow the loss of wildlife caused by shooting? There doesn't seem to be any chance if the serious condition of our birds is not improved.Wildlife belongs to everyone and not to the gunners alone. Although most people do not shoot they seem to forgive shooting for sport because they know little or nothing about it. The only answer, then，is to bring the truth about sport shooting to the great majority of people.Now，it is time to realize that animals have the same right to life as we do and that there is nothing fair or right about a person with a gun shooting the harmless and beautiful creatures. The gunners like to describe what they do as character building, but we know that to wound an animal and watch it go through the agony of dying can make nobody happy. If，as they would have you believed, gun­carrying and killing improve human­character ，then perhaps we should encourage war.1．According to the text，most people do not seem to be against hunting because ________.A．they have little knowledge of itB．it helps to build human characterC．it is too costly to stop killing wildlifeD．they want to keep wildlife under control2．The underlined word“agony” in the last paragraph probably means ________.A．form B．conditionC．pain D．sadness3．According to the text, the films children watch at school actually ________.A．teach them how to deal with guns safelyB．praise hunting as character­buildingC．describe hunting as an exerciseD．encourage them to have guns of their own4．It can be inferred from the text that the author seems to ________.A．blame the majority of peopleB．worry about the existence of wildlifeC．be in favour of warD．be in support of character­buildingBFor centuries，elephants have played a big role in the world's economies, cultures and religions. The African elephants used to be found all over Africa and the Asian elephants moved from Syria to China to Indonesia. Nowa­days，elephants are found in small groups in the south of the Sahara Desert and scarcely in Southeast Asia, Sri Lanka and India.In the early twentieth century, there were close to ten million elephants，and now the elephant number is as low as 252,000 and expected to drop down to 160,000 by 2025. Between 2007 and 2024, the elephant population fell by at least 30% ，or 144,000 elephants. As researchers have traveled over the African plains，they only spotted one herd of 36 elephants in an area like the size of Mexico.It is clear that these gentle mammals are disappearing right before our eyes.There are many reasons why the elephant population has been decreasing，one of which is their habitat. Humans are competing with elephants for living space, and as more and more humans clear the land that is being used by elephants, the elephants have less space. Elephant hunting or “poaching” has been a major factor for the disappearance of this species，and they are killed only for their valuable ivory tusks. Although the trade of tusks is illegal, it is still a common practice in many places.Often，all the local people living among elephants would be farmers，and found that they could make more money by selling the tusks of one elephant than doing manual labor for twelve years. That alone makes it really hard to prevent them from killing the elephants.Some places such as Botswana，have put in extra effort to protect their wildlife from poachers by founding their Botswana Defense Force, which is made up of around 700 specially­trained soldiers that are stationed in 40 different areas. You may feel worried about the present situations elephants are in, but there are ways to help. To find out how you can help elephant conservation，adopt an elephant，or donate，click here.5．The numbers listed in Paragraph 2 show that ________.A．humans don't care for elephantsB．elephants have been next to extinctionC．elephants have become gentler than beforeD．elephants have gained more attention6．What is the biggest factor for the disappearing elephants?A．Less space.B．A lack of food.C．Suffering from a disease.D．Elephant hunting.7．Why is it hard to ban killing the elephants among the farmers?A．Their tusks are profitable.B．Elephants are destroying their fields cruelly.C．Farmers hope to make a living by selling their meat.D．Farmers practice their hunting skills by killing elephants.8．What is the purpose of this text?A．To persuade readers to make a donationB．To guide readers how to protect elephants.C．To encourage readers to help protect elephants.D．To introduce the decreasing number of elephantsⅡ.完形填空I have always had a heart for strays(流浪动物)．The first animal I took home was a pigeon.I __1__ it on my way to school.It was lying by the roadside and its wingwas broken.I __2__ it in the woods.When I went home，it was __3__ there，so I brought it home.My father put it in a __4__. I fed it every day，and I kind of __5__ it.The next animal I found was a black dog.It was very __6__ because it was about to have puppies(小狗)．I found the dog __7__ outside of our house for many days and __8__ to take it in.It was so happy and we could tell that it wasn't treated well before.We also kept it in a box.Several days later，the dog had five __9__. In those days，no one wanted them, __10__ I had to have all of them.The __11__ of animals grew to be large.Eventually，we had dogs, cats，birds and rabbits.My mother was really __12__ because of t he chemo­therapy(化疗)．My father would come home after work and feed the animals.At that time，we had at least 25 animals and the __13__ from the basement wasn't nice.Therefore, we had to send them away.The black dog and its babies were __14__ to a family with three boys and I often visited them.They never forgot me and were always __15__ to see me.I will always feed and try to help animals when I can.1．A.spotted B．watchedC．bought D．recognised2．A.protected B．hidC．buried D．sold3．A.even B．stillC．already D．never4．A.box B．gardenC．pocket D．room5．A.raised B．playedC．changed D．owned6．A.scared B．energeticC．weak D．familiar7．A.lost B．tiredC．beaten D．tied8．A.planned B．regrettedC．refused D．decided9．A.friends B．babiesC．enemies D．masters10．A.so B．butC．since D．or11．A.house B．areaC．number D．type12．A.ill B．calmC．caring D．annoying13．A.smell B．voiceC．smoke D．trouble14．A.poured out B．thrown outC．sorted out D．given away15．A.unwilling B．afraidC．shocked D．happyⅢ.七选五Many do gs are very hard­working animals. They have been helping people for thousands of years. Dogs protect our homes and help people with disabilities. They team up with rescue workers in search­and­rescue operations. __1__.Conservation experts in Australia are training dogs to use their sense of smell to find some of the country's most endangered creatures. __2__， who is training two border collies, named Rubble and Uda, to become conservation detection dogs. He saysthat border collies are good for this kind of work, because they have a great sense of smell. The dogs also have great mental and physical strength to work long hours.__3__. They are trained to find the Baw Baw frog, one of Australia's most endangered animals. The work is difficult mainly because of the search area. Just to get to the place where the frogs live, the dogs and their trainers must walk far distances through forests.A deadly fungus (真菌) has killed nearly all of Australia's Baw Baw frogs. __4__. Therefore, experts at Zoos Victoria are trying to save the frog. They raise them and have them reproduce. Deon Gilbert is a frog expert there, who says that detecting the frogs in the wild can be very difficult because they mainly live underground. The females are even more difficult to find. __5__.However, Rubble and Uda had no trouble in finding the frogs. They were able to locate the exact site where the frogs were calling from much quicker than people could do just by using ears.A．Luke Edwards is a dog owner and trainerB．Recently, the dogs went on a very important jobC．They are very clever and can understand their ownerD．Unlike the male Baw Baw frogs, they do not have a callE．And now, dogs can even help to find endangered animalsF．Without these dogs，it is really difficult to find these rare frogsG．Scientists say these creatures can disappear in the next 5 to 10 years Ⅳ.语法填空1The giant panda 1.________ (love) by people throughout the world. Chinese scientists 2.________ (recent) had a chance to study a wild female panda with a newborn baby. She was a very 3.________ (care) mother. For 25 days，she never left her baby，not even to find something 4.________ (eat)! She would not let any other pandas come near. She licked the baby constantly to keep it clean. Any smell might attract natural 5.________ (enemy) that would try to eat the little panda. The mother held the baby in her front paws much the way a human does. 6.________ it cried，she rocked it back and forth and gave it little comforting pats. The mother continued to care for the young panda 7.________ more than two years. By that time, the panda no longer needed 8.________ (it) mother for food. However，it stayed with her and learned about the ways of the forest. Then, after two and a half years, the mother 9.________ (drive) the young panda away. It was time for her to have a new baby, 10.________ it was also time for the young panda to be independent.Ⅴ.语法填空2A man hiking in a 1.________ (heavy) wooded area of northern New Jersey was killed by 2.________ black bear during the weekend，police said on Monday, in 3.________ experts called an extremely rare attack.Darsh Patel,22，of Edison, New Jersey, and four friends encountered the bear 4.________ Sunday afternoon in the Apshawa Preserve，about 40 miles (64 km) northwest of New York City，according to the West Milford Township, New Jersey, police department.The bear 5.________ (begin) to follow the hikers and they separated，police said in a statement. Four of them regrouped but Patel was 6.________ (miss) and they contacted police，who found Patel's body about two hours 7.________ (late)．“Evidence at the scene showed that Patel had been attacked by a bear，” the statement said.A bear 8.________ (find) at the scene and killed，police said.Black bears are common in New Jersey and have been seen in all of the state's 21 counties，but 9.________ (attack) on humans are unusual，according to experts.“10.________ is definitely rare，” said Lawrence Hajna，a spokesman for thestate Department of Environmental Protection (DEP)．话题二野生动物爱护Ⅰ.阅读理解A【语篇解读】这是一篇关于野生动物的文章。

蝌蚪变成蛙的英语作文Title: The Magical Transformation: From Tadpole to FrogNature is full of wonders, and one of the most intriguing transformations in the animal kingdom is that of a tadpole evolving into a frog. This miraculous process is a testament to the incredible power of growth and adaptation, showcasing the beauty of metamorphosis.The journey begins when a female frog lays her eggs, which are often clumped together in clusters called frogspawn. These eggs are usually laid in water and are vulnerable to predators, so they rely on numbers for safety in their early stages. As time passes, the eggs hatch into tiny, tailed creatures known as tadpoles. They look quite different from their parents – instead of legs, they have long tails that help them swim through the water.Tadpoles breathe through gills and feed on algae and other small aquatic plants, constantly growing as they nourish themselves. Over a period that varies by species, the tadpoles start to develop hind legs, followed by forelegs, and gradually lose their tails. Their digestive systems also transform as they begin to absorb nutrientsdirectly from the water, preparing for a life on land.As the transformation continues, the tadpoles' respiratory systems change too. Gills give way to lungs, a crucial adaptation for breathing air. This marks a significant milestone: the tadpoles now venture to the surface to take their first breath of air. Their once-flattened bodies become more robust, and their eyes protrude to enable better vision in both water and on land.One day, the tadpoles complete their physical changes; they have lost their tails entirely, replaced by fully formed legs. Their digestive systems have adapted to consuming insects and other small animals. At this stage, these young frogs, now called froglets, make their first jump onto land. Their skin, which will continue to play a vital role in respiration, becomes less permeable and tougher, ready to withstand the varied conditions of terrestrial life.The process of a tadpole turning into a frog is not just about physical changes; it's also about survival skills. Froglets must learn to hunt for food, evade predators, and find suitable habitats. They are born with instincts that guide them through these new challenges.In essence, the transformation of a tadpole into a frog is an extraordinary process that illustrates nature's ability to adapt and evolve. It's a story of resilience, growth, and the triumph of life's continuity. As we marvel at the miracle of metamorphosis, we are reminded of the intricate dance of life that plays out in every corner of our planet.。