日本成人片在线_久久免费精品视频_国产午夜精品久久久久久免费视_校花撩起jk露出白色内裤国产精品_av影片免费在线观看_国产小视频在线看_最新av免费在线观看_99久久99久久精品国产片_欧美成人猛片aaaaaaa_蜜桃免费网站一区二区三区

精英家教網 > 高中英語 > 題目詳情
In Wiltshire, England, volunteers are being sought to visit a nature protection area to count the butterflies living there and on surrounding fields. The project is promoted by all environmental protection organization, which has contributed to improving the living environment for wild animals. Recently, the organization has issued an appeal to help it observe environmental changes based on the record of butterflies and protect the environment.
In the area, the local people have planted many special flowers with the help of the organization, aiming to see whether these flowers will interest the rare and beautiful butterflies. The project officer Sarah Marshall says,“It will be a suitable habitat (棲息地) for butterflies. They are great‘indicator species’ as they are easily affected by climate changes so they make a brilliant early-warning system for the environment.” She also points out that volunteers are needed to record the number or species of butterflies, and based on the change happening to the butterflies, the hidden environmental problems in the area can be found out in time.
The organization is seeking volunteers to help monitor butterflies from April through to September. They will walk a fixed route and record the different butterflies they encounter along the way. Each visit should take no more than two hours, and each volunteer is expected to visit once a month to count the wildlife. “Staff will provide back up, so if the weather is poor on the day you are to visit (butterflies don’t like to fly in the rain, wind or if it’s too cloudy) we can have someone else do your job,” Sarah points out.
No previous experience is necessary as training and support will be provided, but a keen interest is essential. If you are interested please contact Sarah on (01380) 725670, ext 278, email—sarahm @ wiltshirewildlife. org.
小題1: According to Paragraph 1, what is the purpose of the Project?
A.To appeal to more visitors
B.To protect the environment
C.To control butterfly population
D.To expand the area for wildlife
小題2:Butterflies are called “indicator species” because _______.
A.they can provide support for visitors
B.they can give information to other species
C.they are not easily found out in their habitats
D.they are very sensitive to environmental changes
小題3:Volunteers are required to do the things EXCEPT __________.
A.having some special previous experience
B.being interested in protecting the environment
C.walking a regular route and do some recordings
D.visiting the nature protection area once a month
小題4:What is the text mainly about?
A.Visitors are being trained to identify butterflies.
B.Wildlife areas are being protected by butterflies.
C.Volunteers are being needed to count butterflies.
D.Organizations are being put up to protect butterflies.

小題1:B
小題2:D
小題3:A
小題4:C

試題分析:本文講述了英國當地的一個環境保護組織正在招募志愿者來幫助保護環境,并詳細介紹了對志愿者的要求等信息。
小題1:B 細節題。根據文章第一段最后一句Recently, the organization has issued an appeal to help it observe environmental changes based on the record of butterflies and protect the environment.
可知這個計劃的目的在于保護環境。故B正確。
小題2:D 細節題。根據文章第二段3,4行They are great‘indicator species’ as they are easily affected by climate changes so they make a brilliant early-warning system for the environment.”可知蝴蝶對于氣候的變化最為敏感,故D正確。
小題3:A 細節題。根據文章第三段2,3行.They will walk a fixed route and record the different butterflies they encounter along the way. Each visit should take no more than two hours, and each volunteer is expected to visit once a month to count the wildlife.以及第4段No previous experience is necessary as training and support will be provided, but a keen interest is essential.可知BCD三項都是文章中提及的對志愿者的要求,只有A項沒有提及。
小題4:C 主旨大意題。根據文章主題段第一段In Wiltshire, England, volunteers are being sought to visit a nature protection area to count the butterflies living there and on surrounding fields.可知該組織正在招募志愿者來幫助計算當地蝴蝶的數量,通過相關的行為來保護環境。故C正確。
點評:本文講述了英國當地的一個環境保護組織正在招募志愿者來幫助保護環境,并詳細介紹了對志愿者的要求等信息。本文細節題居多,答題時在文章找到對應的地方,用筆進行標記,這有利于后期有時間檢查時可以立刻找到答案的位置。仔細理解作者所講的意思,再結合選項,通過排除法和自己對全文的把握,選出正確答案。
練習冊系列答案
相關習題

科目:高中英語 來源:不詳 題型:閱讀理解

Life on earth depends on water, and there is no substitute for it. The current assumption is that our basic needs for water—whether for drinking, agriculture, industry or the raising of fish—will always have to be met. Given this premise (前提), there are two basic routes we can go; more equal access to water or better engineering solutions.
Look at the engineering solutions first. A lot of my research concentrates on what happens to wetlands when you build dams in river basins, particularly in Africa. The ecology of such areas is almost entirely driven by the seasonal changes of the river—the pulse of the water. And the fact is that if you build a dam, you generally spoil the downstream ecology. In the past, such problems have been hidden by a lack of information. But in the near future, governments will have no excuses for their ignorance.
The engineers’ ability to control water flows has created new kinds of unpredictability, too. Dams in Africa have meant fewer fish, less grazing and less floodplain (洪泛區) agriculture, none of which were expected. And there average economic life is assumed to be thirty years. Dams don’t exist forever, but what will replace them is not clear.
The challenge for the future is to find new means of controlling water. Although GM technology(轉基因) will allow us to breed better dry-land crops, there is no market for companies to develop crops suitable for the micro-climates of the Sahel and elsewhere in Africa. Who is going to pay for research on locally appropriate crops in the Third World?
小題1:What’s the main idea of this passage?
A.The engineering solutions to water resource and their limitation.
B.The challenge for the future.
C.The basic means of controlling water.
D.The challenge for developing crops.
小題2:The author suggests that governments will have no excuse for their careless ignorance in the future because _____.
A.The ecological destruction will be known to the public by researchers
B.The ecological destruction will no longer be a problem in the future
C.The future is an information age
D.Governments will face greater challenge in the future
小題3:Which of the following statements is NOT true for meeting our basic needs for water?
A.Water resource should be used more reasonably.
B.More dams should be built in river basins.
C.More wetlands should be protected from destruction.
D.More dry-land crops could be developed in Africa.
小題4:The last sentence probably implies that _____.
A.No one will invest in developing locally appropriate crops in Africa
B.Researchers have no interest in developing dry-land crops
C.Research on locally appropriate crops in the Third World may be profitable
D.There is less water resource in the Third World

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

What do butterfly wings have to do with computer screens? What do birds have to do with high speed trains?
These may sound like strange things to put together. But scientists, inventors, and designers are doing just that. They are learning from nature to create new technology.
The word biomimicry (仿生學) combines two words: biology and mimicry. So people using biomimicry try to use examples in nature to design new technology.
Biomimicry is not a new idea. People have been studying nature for hundreds of years. Leonardo DaVinci used birds as models to invent his flying machine. And when the Wright Brothers made the first successful airplane, they also studied birds. In 998, Janine Benyus, a natural science writer and teacher, wrote a book about biomimicry. To develop her interest in the subject, Janine Benyus started the Biomimicry Institute.
The Biomimicry Institute is a non-profit organization. It brings together scientists, designers, inventors and many other people. It offers classes to teach people biomimicry. It provides money for people to research and test new technologies. And it wants all people, from children to adults, to think about new ways to learn from nature.
People involved with the Biomimicry Institute believe that biomimicry can help solve many of the world’s problems. Often, new technologies can harm nature, but this is not true for biomimicry. Let’s look at some examples.
Butterflies have colorful wings because light shines off them in a special way. Scientists want to copy these same ways to make light shine off computers. They hope this will make for more colorful screens.
Another example of biomimicry is the bullet train. It travels at speeds of over 250 kilometers per hour! But it had a problem: it made too much noise!
Through the observation of birds, scientists thought about a kind of bird, the kingfisher(翠鳥). The kingfisher can dive into water without making any noise because of the shape of its beak(喙). Researchers thought that if they could design the front of the train like this beak, the train would be quieter. Well, it worked!
小題1:The first paragraph is written to_____.
A.start a discussion B.make a brief summary
C.introduce the topic of the text D.test readers' knowledge on science
小題2:Why did Janine Benyus set up the Biomimicry Institute?
A.To honor the Wright Brothers.
B.To show her recent inventions.
C.To gather talented people for her research.
D.To explore the link between nature and technologies.
小題3:We know from the text that the Biomimicry Institute _____.
A.earns a lot by giving classes on biomimicry B.tells people about their technologies
C.gives free support to scientists D.teaches children about birds
小題4:The author gives the two examples at the end of the text to show _______.
A.biomimcry works harmoniously with natureB.the fast development of modern technology
C.how biomimcry changes our lifeD.how nature inspires scientists
小題5:What’s the main idea of the text?
A.Biomimicry is widely used in the world.
B.People copy nature to create new technologies.
C.The Biomimicry Institute was set up for science.
D.Birds play an important part in new technologies.

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

There is no question that teenagers need rules, which is often not a difficult thing for parents to give. What can be more challenging is giving teenagers their freedom. It can be difficult to draw the line between the two. However, some issues cannot be changed by discussion and require firm rules. For instance, rules should be established concerning driving the family car.
I will admit that I have no problem coming up with rules. To me they make life easier and they leave no room for questioning. What can be more difficult, however, is giving my teens their freedom. I guess there are really two primary reasons for this. One is that I sometimes am afraid to give them freedom. The second is that I’m not always so sure what the freedom should be.
It helps that I have a husband with whom I can discuss these problems. We talk about them, give our thoughts and then we come up with an agreement. Sometimes one of us might be more unwilling but we know that there comes a time when we really do have to learn how to let go of the reins (韁繩) a bit.
If we try to make life have nothing but rules, we are more likely to see our teen’s rebelling (反抗). They need to know that while we do have certain expectations, we also trust them to begin making their own choices and decisions. How else can they do that unless they are given the space and room to do it?
It’s really all about balance and I will be the first to admit that it can be a challenge to carry out. However, it is a necessary part of growing up. Yes, teens definitely need rules but they also need freedom.
小題1:According to the text, we can infer that the writer________.
A.refuses to give her children freedom
B.finds it difficult to make rules
C.doesn’t have a good relationship with her children
D.has trouble in giving freedom to her children
小題2:According to the writer, only rules without freedom will make the children _______.
A.strong-willedB.rebelliousC.weakD.independent
小題3:Which of the following is TRUE according to the text?
A.Rules are difficult to make for parents.
B.Rules and freedom are similarly important.
C.We should give children freedom as much as possible.
D.Rules are more important than freedom.
小題4:What does the underlined word “them” in Paragraph 3 probably refer to?
A.Problems.B.Children.C.Rules. D.Reasons.

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

Anne Whitney, a sophomore (大學二年級學生) at Colorado State University, first had a problem taking tests when she began college. "I was always well prepared for my tests. Sometimes I studied for weeks before a test. Yet I would go in to take the test, only to find I could not answer the questions correctly. I would blank out because of nervousness and fear. I couldn't think of the answer. My low grades on the tests did not show what I knew to the teacher. “Another student in biology had similar experiences. He said, "My first chemistry test was very difficult. Then, on the second test, I sat down to take it, and I was so nervous that I was shaking. My hands were moving up and down so quickly that it was hard to hold my pencil. I knew the material and I knew the answers. Yet I couldn't even write them down!"
  These two young students were experiencing something called test anxiety. Because a student worries and is uneasy about a test, his or her mind does not work as well as it usually does. The student cannot write or think clearly because of the extreme tension and nervousness. Contrary to people’s common belief that poor grades are often a result of poor study habits, sometimes test anxiety plays a role in students’ achieving low grades. Recently, test anxiety has been recognized as a real problem, not just an excuse or a false explanation of lazy students.
  Special university advising courses try to help students. In these courses, advisors try to help students by teaching them how to manage test anxiety. At some universities, students take tests to measure their anxiety. If the tests show their anxiety is high, the students can take short courses to help them deal with their tensions. These courses teach students how to relax their bodies. Students are trained to become calm in very tense situations. By controlling their nervousness, they can let their minds work at ease. Learned information then comes out without difficulty on a test.
  An expert at the University of California explains, " With almost all students, relaxation and less stress are felt after taking our program. Most of them experience better control during their tests. Almost all have some improvement. With some, the improvement is very great. "
小題1:To "blank out" is probably______.
A.to be like a blanket B.to be sure of an answer
C.to be unable to think clearlyD.to show knowledge to the teacher
小題2:Poor grades are usually believed to be the result of______.
A.poor sleeping habit B.laziness
C.test anxiety D.inability to form good study habits
小題3:Test anxiety has been recognized as______.
A.an excuse for lazinessB.the result of poor study habits
C.a real problem D.something that cannot be changed
小題4:A University of California advisor said______.
A.all students could overcome the anxiety after taking a special test anxiety program
B.almost all students felt less stress after taking a University of California advising course
C.students found it difficult to improve even though they had taken a special test anxiety course
D.students found it easy to relax as soon as they entered a University of California advising course

查看答案和解析>>

科目:高中英語 來源:不詳 題型:完形填空

Have you ever tried to draw a straight line, only to find it turns out all wrong? Or, wanted to show   36  at a party but the song you’d practised so many times suddenly   37  more difficult?
I've had both these   38 .As a Senior 3 student, I have to   39  many exams. Each time I enter one thinking “I   40  fail this time.” , I get a low mark.
But don't be surprised --- it's not   41  we don't try, or do enough preparation, or take it   42 . On the contrary, it is because we put ourselves under too much   43 . It is thinking ‘I must…’ that makes us taste the terrible flavor of   44 .
We often   45  to our friends, “Don't be too hard   46  yourself!”. But when we   47  our own goals, we may not listen to our own advice.
In doing so, we are making our path to success increasingly difficult.
So why not   48  this crazy pursuit(追求) to get the best? Just face the problem   49  before you with a calm mind, enjoy the hard work and you will succeed.
In my opinion,   50  a calm state of mind is a skill for life. For people who want to succeed,   51  this is a very important lesson.
So   52  time when you're trying to draw a straight line or   53  a performance, tell yourself, “If I can just do it better than last time, it's a   54 . ”
Keep a calm state of mind, and you will be happy   55  you succeed or fail.
小題1:
A.upB.offC.outD.in
小題2:
A.assumesB.appearsC.listensD.becomes
小題3:
A.experiencesB.chancesC.timesD.reviews
小題4:
A.finishB.measureC.takeD.join
小題5:
A.shouldn'tB.mayC.can'tD.haven't
小題6:
A.whyB.sinceC.whenD.because
小題7:
A.necessarilyB.seriouslyC.personallyD.sharply
小題8:
A.careB.powerC.pressureD.attention
小題9:
A.examsB.difficultyC.marksD.failure
小題10:
A.sayB.speakC.tellD.talk
小題11:
A.offB.onC.toD.for
小題12:
A.shareB.achieveC.weighD.set
小題13:
A.throw away B.get awayC.take awayD.let away
小題14:
A.waitingB.sittingC.lyingD.laying
小題15:
A.stayingB.keepingC.remainingD.making
小題16:
A.tryingB.realizing C.usingD.training
小題17:
A.lastB.whatC.nextD.high
小題18:
A.put onB.play onC.give onD.show on
小題19:
A.successB.taskC.lessonD.trial
小題20:
A.ifB.eitherC.neitherD.whether

查看答案和解析>>

科目:高中英語 來源:不詳 題型:完形填空

“When your mother criticizes you, you can look somewhere else and think about other things. Just pay no attention to her words. But remember: it’s a strong attitude, so it cannot be used  36 .You can use this skill only sometimes.” These words are from some cartoons  37 skills for children to  38 against their mothers.
“This is a book for  39 aged six to twelve who are always criticized by their  40 ”, and the cartoons,   41 by two 10-year-old girls, list over twenty  42 which children can use to deal with their mothers’  43 ,such as crying, running away and so on. Each skill is described with interesting  44 and funny notes. The two girls’ creativity(創造力)amazed the adults.
According to one of the girls’ mothers, her daughter once performed  45 in an exam, so she criticized her. The daughter’s feelings led to her  46 the cartoons. The girl’s father said he  47 parents would pay attention to the pictures. He said parents should think about children’s feelings. They shouldn’t criticize them so often. And he said the cartoons weren’t  48 yet and that his daughter would continue with them when she was  49 .
The cartoons make people  50 the problems within Chinese family  51 , said an expert on family education. According to a survey of 104 children and their parents, as many as 51.9 percent of the children  52 being criticized by their mothers.
Not giving children enough time to play and always criticizing them seem to be very  53 in family life. It is a big problem in fact     parents think it is ok .Children will have  55 feelings within their heart. Parents should learn to encourage children more.
小題1:
A.suddenlyB.certainlyC.recentlyD.often
小題2:
A.showingB.usingC.lendingD.leaving
小題3:
A.fightB.protectC.argueD.stand
小題4:
A.classmatesB.childrenC.strangersD.neighbors
小題5:
A.parentsB.teachersC.friendsD.sisters
小題6:
A.boughtB.interestedC.drawnD.dreamed
小題7:
A.photosB.presentsC.skillsD.reasons
小題8:
A.careB.angerC.encouragementD.sadness
小題9:
A.picturesB.resultsC.wordsD.characters
小題10:
A.quicklyB.badlyC.wellD.slowly
小題11:
A.readingB.directingC.creatingD.selling
小題12:
A.disagreedB.wonderedC.foundD.hoped
小題13:
A.invitedB.wantedC.knownD.finished
小題14:
A.oldB.freeC.boredD.excited
小題15:
A.forgetB.enjoyC.changeD.face
小題16:
A.educationB.planningC.importanceD.tradition
小題17:
A.continueB.hateC.understandD.keep
小題18:
A.usefulB.clearC.commonD.funny
小題19:
A.thoughB.thereforeC.ifD.and
小題20:
A.relaingB.thankfulC.happyD.negative

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

Over the past decade, cheating—an act of academic dishonesty—has become more and more common.
The latest statistics shows more than two thirds of high school students admitted cheating on an exam last year, and—even more surprising—often the best students cheat to get to the top of their class—and they don’t think it is wrong. It’s not a big deal. Everybody is doing it.
It is a big deal! Cheating is basically wrong and must be punished.
If students easily get away with it, they might be encouraged to do it again. They won’t realize that this—in the broadest sense—is an attack on our society, which is based on values like honesty and fairness. The present spreading of cheating indicates a loss of those values and cannot be tolerated. An appropriate punishment for cheating incidents would make students aware of their misbehavior.
If no one were punished for cheating, who would ever study for an exam? Tons of papers would be lifted from websites, writing crib sheets would be more important than reviewing the subjects, and highly sophisticated cheating arts would be invented. Knowledge would only exist on the Internet and on cleverly created cheat sheets, but not in the minds of the students—a rather bad precondition to enrich our society wisely and intelligently.
Students have to learn that they have to learn. Only doing what’s right will bring them a feeling of pride and accomplishment and create self-confidence—the building blocks for a successful and satisfying life and a society that keeps its values.
小題1:What is more surprising is that       .
A.cheating is very common in schools
B.over 2/3 of the students cheat last year
C.even the best students cheat on exams
D.teachers are not aware of the problems
小題2:How do they make the students realize their misbehavior?
A.By letting them getting away with it.
B.By telling them what is right.
C.By catching them on the spot.
D.By giving them some punishment.
小題3:How can students create self-confidence?
A.By knowing they have to learn.
B.By doing what is right.
C.By learning the right things.
D.By being punished when cheating.
小題4:What does the underlined word “lifted” mean?
A.takenB.removedC.copiedD.written

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

Across countryside, non-food crops are growing alongside wheat.Some are used in new alternatives to plastics and other materials, but others will simply be burned.
Burning crops is becoming more popular because it is good for the planet.Doing so is also cheaper than burning fossil fuels.As more land is devoted to non-food crop production, the economics of crops for fuel are likely to become even more favorable.
Humans have been burning such biomass—organic materials from plants or animals— since they discovered fire.But that burning fossil fuels could have catastrophic consequences has brought biomass back into fashion.
Even allowing for emissions (排放) of carbon dioxide from fuel used in planting, harvesting, processing and transporting biomass fuel, replacing fossil fuel with biomass can typically reduce greenhouse gas emissions by more than 90 percent.
Power stations around the world are experimenting with forms of biomass to add to their coal or oil, with encouraging results.Indeed, power companies could profit by turning to biomass, especially when the subsidies (補助) many governments offer for using renewable energy are taken into account.
Farmers can benefit from growing biomass.In Europe, the reduction of subsidies for certain crops is exposing farmers to market forces.Instead of being paid for whatever they produce, farmers must seek a clear demand for their product.Many believe that the demand for alternatives to fossil fuels could be just such a driver.
But while biomass offers a variety of potential alternatives, the world's infrastructure (基礎設施) has developed around burning fossil fuels to such a stage that switching to biomass involves a change in conception that many companies have not accepted.
Also, there are problems with using biomass.Although most coal-fired power stations could take a small amount of their fuel from biomass without significant adjustment, few are built to run on biomass alone.Burning some forms of biomass also causes environmental problems.Oils and waste can be smelly, while wood produces smoke unless burned properly.
The supply chains for fossil fuels are set up well, but those for biomass are just the beginning. Sources of supply for biomass rely on farm production and can therefore be less reliable. They are necessarily limited and it wouldn't make sense to turn a very large amount of valuable agricultural land away from food crops.But as the world adjusts to the need to control greenhouse gas emissions, these problems may receive more attention.
小題1:What do we know about biomass?
A.It is a useful way of burning crops.
B.It is plant and animal matter used to provide power.
C.It is a new alternative to be used widely.
D.It is a popular approach to fighting against pollution.
小題2:What are the advantages of using biomass?
a.It gives off less greenhouse gases.
b.It helps farmers receive subsidies for what they produce.
c.It has met the clear demand for energy.
d.It has brought subsidies for some power companies.
e.It is cheaper than burning fossil fuels.
A.a, b, cB.b, c, dC.c, d, eD.a, d, e
小題3:For coal-fired power stations, ______.
A.more effective ways to use biomass have been tried
B.using renewable energy has become their daily task
C.burning biomass alone would require considerable changes
D.setting up dependable supply channels needs governments' support
小題4:What is the author's attitude towards biomass fuels?
A.Defensive.B.Doubtful.C.Negative. D.Objective

查看答案和解析>>

同步練習冊答案
亚洲五月天综合| 91小视频xxxx网站在线| 啪啪小视频网站| 欧美日韩国产精品综合| 亚洲区免费视频| 东京热av一区| 亚洲精品视频三区| 激情五月亚洲色图| 国产精品一区二区免费在线观看| 亚洲蜜桃av| 日韩精品大片| 欧美一区少妇| 日本一区二区三区精品视频| 精品乱码一区| 久久国产日韩欧美| 欧美日本韩国一区二区三区| 国产一区免费视频| 国产精品一 二 三| 国产精品一区二区三区精品| 95av在线视频| 91久久偷偷做嫩草影院| 99se婷婷在线视频观看| 亚洲综合社区网| 99re国产在线播放| 国产精品日韩欧美一区二区| 丁香五月网久久综合| 亚洲在线视频福利| 国产伦精品一区二区三区四区视频 | 中文字幕网址在线| 亚洲网站免费观看| 国产内射老熟女aaaa∵| 国产高清视频免费观看| 黑人精品一区二区| 欧美一区,二区| 成人在线小说| 黄网在线观看| 国产黄色在线网站| 久久www人成免费看片中文| 色多多在线观看| 亚洲精品一级二级| 一区二区日韩| 国产亚洲第一伦理第一区| 精品免费视频| 国产精品啊啊啊| 久久久水蜜桃av免费网站| 日本v片在线高清不卡在线观看| 久久国产生活片100| 粉嫩绯色av一区二区在线观看| 99久久精品免费看国产| 国产精品嫩草99a| 五月天视频一区| 欧美一区永久视频免费观看| 亚洲福利视频在线| 久久精品电影网站| 55夜色66夜色国产精品视频| 国产精品午夜国产小视频| av成人午夜| 神马影院我不卡午夜| 九九热只有这里有精品| 91福利国产成人精品播放| 极品白嫩的小少妇| 大吊一区二区三区| 性无码专区无码| 蜜臀av在线观看| jizz亚洲| 依依综合在线| 国产日韩三级| 欧美国产三区| 免费成人在线网站| 久久人人爽爽爽人久久久| 一区二区三区自拍| 这里只有精品视频在线观看| 国产视频丨精品|在线观看| 久久国产精品免费视频 | 国产精品专区第二| 久久精品999| 国产精品成人一区二区网站软件| 蜜桃一区二区三区在线观看| 久久久综合九色合综国产精品| 亚洲午夜精品在线| 欧美不卡一区二区| 欧美成人免费小视频| 国产精品久久久久久久久免费| 免费看成人午夜电影| 亚洲理论电影在线观看| 91九色蝌蚪porny| 国产一级一片免费播放| 亚洲精品久久久久久久久久久久久久 | www.成人av| 午夜久久久久久久久久久| 中文字幕成人在线视频| 成年人免费视频播放| 中文在线a天堂| 精品视频二区| 久久精品97| 久久久久久影院| 激情另类小说区图片区视频区| 亚洲国产精品成人综合色在线婷婷 | 亚洲成人综合视频| 亚洲精品国精品久久99热 | 国产欧美精品在线| 99re99热| 久久久久国产免费| 五月婷婷色丁香| 一级黄色av片| 精品一区二区三区免费播放| 精品国产伦一区二区三| 最大av网站| sm久久捆绑调教精品一区| 欧美另类tv| 婷婷色中文字幕| 99久久精品日本一区二区免费| 最新av网站在线观看| 国产亚洲亚洲国产一二区| 韩国亚洲精品| 国产精品入口麻豆原神| 制服丝袜中文字幕一区| 4438全国成人免费| 在线观看免费黄色片| 午夜久久久久久久| 一级黄色大片免费| 黄页网站在线| 久久日文中文字幕乱码| 成人免费av资源| 欧美日本乱大交xxxxx| 久久久久国色av免费观看性色| 女同一区二区| 影音先锋资源av| 国产美女永久免费| 8x8ⅹ拨牐拨牐拨牐在线观看| 成人精品中文字幕| 久久只精品国产| 欧美精品一区二区三区四区| 国产精品一区久久久| 成人免费毛片网| 精品无码久久久久久久久| 日韩电影免费| 91精品入口| 国产在线视视频有精品| 欧美天堂一区二区三区| 国模精品系列视频| 国产aaa免费视频| 久草网在线观看| 一区二区三区视频在线观看视频| 国产精品免费不| 久久综合九色综合欧美98| 精品粉嫩超白一线天av| 91久久国产精品| www.色就是色.com| 亚洲天堂网在线观看视频| 国产a免费视频| 国产一级特黄a大片99| 亚洲第一视频| 乱精品一区字幕二区| 成人免费直播| 天堂av在线一区| 欧美日韩中文一区| 国产精品aaaa| 夜夜夜夜夜夜操| 国产熟女一区二区三区五月婷| 欧美不卡高清一区二区三区| 日韩av电影一区| 欧美三级电影在线观看| 成人久久久久爱| 中文字幕第六页| 特级丰满少妇一级aaaa爱毛片| 精品国产乱码一区二区三区| 国产98色在线|日韩| 亚洲国产成人精品久久久国产成人一区| 91一区二区三区| 欧美肉大捧一进一出免费视频| 色一情一乱一区二区三区| 免费看日产一区二区三区| 懂色av一区二区三区免费观看| 亚洲福利视频二区| 神马一区二区影院| 538精品在线观看| 欧美1—12sexvideos| 久久三级福利| 日韩一区二区电影| 欧洲精品一区色| 久久综合加勒比| 亚洲小少妇裸体bbw| 蜜桃av一区二区| 亚洲第一区第二区| 午夜精品一区二区三区在线观看 | 中文字幕人成不卡一区| sis001欧美| 久久国产直播| 欧美变态口味重另类| 日本欧美色综合网站免费| 国产精品免费在线视频| 成人超碰在线| 国产剧情在线观看一区二区| 国产视频精品va久久久久久| 日本xxx免费| 国产第一页在线观看| 国产日韩在线观看视频| 国产日韩综合av| 91精品国产91久久久久久| 五月婷婷丁香综合网| 无码国产色欲xxxx视频| 日韩伦理一区| 欧洲av一区二区嗯嗯嗯啊| 国产精品日本一区二区| 日韩va亚洲va欧美va清高| 精品丝袜在线| 盗摄精品av一区二区三区| xxxxxxxxx欧美| 亚洲一区二区三区四区五区| 在线观看av片| av成人天堂| 亚洲国产高潮在线观看| 17c丨国产丨精品视频| 99草在线视频| 欧美aaaaaaaaaaaa| 欧美日韩一区二区三区在线 | xxxx视频在线观看| 国产黄色片在线观看| 久久免费国产| 一区二区av在线| 国产精品videosex性欧美| 午夜精品影院在线观看| 国产精品免费一区二区三区四区| 日本高清一二三区| 日韩电影精品| 亚洲精品视频自拍| 国产精品久久国产三级国电话系列 | 91免费人成网站在线观看18| 一本色道久久88| 日本成人一区二区| 亚洲黄色录像片| 国产麻豆乱码精品一区二区三区 | 午夜久久久精品| 国产视频二区在线观看| 日韩av一区二区在线影视| 日韩中文字幕在线免费观看| 中文字幕无码毛片免费看| 二区在线播放| 91香蕉视频污| 国产美女精彩久久| 国产在线视频你懂的| 天堂va欧美ⅴa亚洲va一国产| 亚洲成人av福利| 日本在线视频不卡| japanese国产| 99国产精品久久久久久久| 亚洲香蕉成人av网站在线观看| 国产喷水theporn| jizz性欧美| 久久精品视频一区| 国产主播一区二区三区| 亚洲第一二三四五区| 久久久久亚洲蜜桃| 午夜精品免费视频| 国产不卡在线观看视频| 午夜视频一区二区在线观看| 日韩欧美亚洲范冰冰与中字| avove在线观看| 免费在线超碰| 成人av在线播放网站| 成人在线视频网| 日本三级一区二区三区| 欧美精品97| 少妇av一区二区三区| 在线 丝袜 欧美 日韩 制服| 97精品国产99久久久久久免费| 亚洲综合精品久久| 艳母动漫在线免费观看| 三级理论午夜在线观看| 亚洲精华液一区二区三区| 国产高清久久| 在线观看国产精品日韩av| 熟妇人妻久久中文字幕| 欧美91在线|欧美| 欧美丝袜丝nylons| 一区二区成人网| 成人欧美一区二区三区的电影| 亚洲国产精品一区二区久久| 国产又粗又长又爽视频| 国产黄色片在线播放| 欧美激情一区在线| 亚洲一区三区视频在线观看| 日本人妖在线| 久久婷婷国产综合国色天香 | 亚洲第一综合色| 国产一区二区四区| 日本小视频在线免费观看| 一区二区三区**美女毛片| 久久亚洲国产成人精品无码区| 午夜看片在线免费| 亚洲精品免费在线| 日韩精品手机在线观看| 欧美精品电影| 亚洲精品成人精品456| 国产天堂视频在线观看| 亚洲性图自拍| 欧美日韩一区二区三区在线免费观看| 极品美女扒开粉嫩小泬| 蜜桃av.网站在线观看| 日本乱人伦一区| 国产精品久久久久久9999| 国产69精品久久久久9999人| 日韩一级黄色片| av2014天堂网| 婷婷亚洲成人| 久热国产精品视频| 国产a∨精品一区二区三区仙踪林| 99在线热播精品免费99热| 日产精品久久久一区二区福利| 中文字幕一二区| 国产九九视频一区二区三区| 国产精品一国产精品最新章节| 一本大道香蕉久在线播放29| 中文字幕的久久| wwwwww欧美| 欧美最新精品| 亚洲精品一区二区三区在线观看| 亚洲天堂网一区二区| 日产午夜精品一线二线三线| 欧美大片在线免费观看| 青青国产在线视频| 国产一区视频在线看| 色噜噜色狠狠狠狠狠综合色一| а√天堂在线官网| 色狠狠一区二区| 99久久免费看精品国产一区| 精品国产一区二区三区久久久樱花| 美女精品久久久| 中文字幕无码乱码人妻日韩精品| 国产不卡免费视频| 一区二区三区免费看| 爱搞国产精品| 欧美一级黄色大片| 影音先锋男人资源在线观看| 一区视频在线| 99超碰麻豆| 午夜激情视频在线| 欧美视频第二页| 91资源在线播放| 一二三区精品| 国产经典一区二区三区| 一级毛片视频在线| 欧美伊人久久久久久久久影院 | 国产精品成人免费观看| 日本欧洲一区二区| 色一情一区二区三区四区 | 天天躁夜夜躁狠狠是什么心态| 一区二区日韩欧美| 国产日韩欧美综合| 国产精品久久久久久久龚玥菲| 色婷婷av一区二区三区软件| 亚洲黄色免费视频| 亚洲综合社区| 久久精品一区二区三区不卡免费视频| 成人在线免费看黄| 欧美videos中文字幕| 国产对白videos麻豆高潮| 国产一区二区免费看| 国产女主播自拍| 中文在线综合| 欧美性视频精品| 日本福利片在线| 欧美三区在线视频| 欧美日韩在线视频免费| 国产成人小视频| 波多野结衣乳巨码无在线| 8x国产一区二区三区精品推荐| 欧美高清一级大片| 97香蕉久久| 日本乱码高清不卡字幕| 天天做夜夜爱爱爱| 丁香另类激情小说| 99免费视频观看| 伊人av免费在线观看| 日韩欧美字幕| 7777精品久久久大香线蕉小说| 中文字幕伦理免费在线视频 | 97人妻精品一区二区三区| 中文字幕一区二区三中文字幕| 人妻精油按摩bd高清中文字幕| 欧美一区亚洲| 欧美人与物videos另类| 91成人在线| 一区二区三区四区中文字幕| 97精品国产97久久久久久免费| 午夜精品久久久久久久99| 午夜天堂影视香蕉久久| 人妻无码一区二区三区免费| 久久国产精品无码网站| a级黄色小视频| 九九亚洲精品| 国产欧美日韩综合一区在线观看 | 久热国产精品视频一区二区三区| 校园春色亚洲| 欧美精品videossex88| 免费一级在线观看| 精品国产一区二区三区四区四| 88av在线视频| 午夜av区久久|