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

Dear Mayor,
I would like to draw your attention to the depressing state of the environment in our city. Increased vehicles have made the air polluted. Citizens find it difficult to breathe. Dumping toxic chemicals into the river has polluted the drinking water and ground water.
All of us, as concerned citizens, have discussed these problems in various meetings. We have come up with the following proposals(提議).
The green roads are no longer green. Many trees and bushes have been cut. We propose restricting the movement of vehicles. Besides, we should make it compulsory(強(qiáng)制性的)to use anti-pollution devices on all vehicles. We should also plant more plants and trees along roads.
The Bada Nadi River has become a dumping ground of toxic chemicals from some factories. These toxic chemicals have killed nearly all the life in the river and polluted our drinking water and ground water. We propose that the Bada Nadi River be declared a protected water body. All the dumping should be banned and heavy fine should be imposed on the offenders(違法者). To tackle the problem of managing toxic waste, we propose setting up a water treatment plant so that only clean water is discharged into the river. Cleaning up the river and introducing various fishes and plants to the river will bring it back to life.
Lastly, the noise pollution caused by honking(鳴)horns and blaring loudspeakers has caused distress to one and all. Many people have suffered from noise-related illnesses. We propose a blanket ban on the use of loudspeakers. And“no horn zones”should also be declared in residential hospitals and school areas.
I would request you to seriously consider our proposals and act accordingly.
Thank you!
Sincerely yours,
A kind-hearted citizen
小題1:The author wrote this letter in order to ______.
A.express his/her thanks to the mayor
B.complain about the environment
C.share his/her opinions about city life
D.make his/her suggestions on managing toxic waste
小題2:In order to protect the Bada Nadi River, the author suggests _______.
A.a(chǎn)nti-pollution devices should be used on vehicles
B.planting more trees and bushes along roads
C.restricting the movement of vehicles
D.banning dumping dangerous chemicals into the river
小題3:The underlined word “tackle”in the fourth paragraph means“_______”.
A.put offB.deal with
C.set upD.turn down

小題1:B
小題2:D
小題3:B

試題分析:本文敘述了作者關(guān)于解決城市環(huán)境惡劣向市長提的幾條建議。為了保護(hù)拿帝河,作者建議應(yīng)該禁止傾倒有毒垃圾而且對所有違法者沉重的罰款。對于處理有毒垃圾作者建議建立一個污水處理廠,因此只有干凈的水排入河里。關(guān)于噪音污染,作者提出一個完全禁止使用高音喇叭。
小題1:推理判斷題。根據(jù)第一段的I would like to draw your attention to the depressing state of the environment in our city.可知作者認(rèn)為我們城市的環(huán)境處于令人沮喪的狀態(tài),所以作者因環(huán)境差而抱怨。
故選B。
小題2:推理判斷題。根據(jù)第四段的All the dumping should be banned and heavy fine should be imposed on the offenders(違法者).可知為了保護(hù)拿帝河,作者建議應(yīng)該禁止傾倒有毒垃圾而且對所有違法者沉重的罰款。故選D。    
小題3:詞義猜測題。we propose setting up a water treatment plant so that only clean water is discharged into the river. 我們建議建立一個污水處理廠,因此只有干凈的水排入河里,從中可知這是作者提出的處理有毒垃圾的建議。故選B。
練習(xí)冊系列答案
相關(guān)習(xí)題

科目:高中英語 來源:不詳 題型:閱讀理解

There has been a dramatic increase in the number of natural disasters over the past few years,and it is assumed that global warming and climate change could cause even more disasters in the future.Some of the world’s leading cities are facing disasters like floods and heat waves.
London
London’s flood defences are getting older. Since 1982, the Thames Barrier(水閘) has protected the city from the threat of flooding,but it was only designed to last until 2030 and close once every two or three years. About 21 years later the barrier now closes five or six times a year and according to Environment Agency predictions, by 2050 the barrier will be closed on almost every tide if the problem is not addressed.
There are 26 underground stations, 400 schools, 16 hospitals, an airport and 80 billion worth of property in London's flood risk area, so large scale flooding would be disastrous.
Paris
Over a six­week period in July and August 2008,more than 11400 — mainly elderly people — died in France from dehydration (脫水) and extremely high body temperature in a deadly heat wave. Heat waves of similar intensity (強(qiáng)度) are expected every seven years by 2050, so what can be done to make sure such a disaster does not happen again?
One solution is to have air­conditioners installed in elderly care homes. But this is considered a short­term solution, as the increase in demand for electricity also increases carbon emissions.
In Paris the local authorities are encouraging architects to design new types of buildings such as the building “Flower Tower”, which uses a covering of bamboo to act as a natural air­conditioner.
Shanghai
Shanghai is the fastest growing city on Earth. It has a population of 18 million and is only 4 meters above sea level. Sea levels are predicted to rise by 20 cm within the next century.
An estimated 250,000 people move to Shanghai every year in search of work, placing extra demands on energy consumption. China relies heavily on coal­fired power stations, but these emissions increase temperatures and, in turn, warmer seas increase the risk of typhoons.
小題1:Which of the following would be the best title for the passage?
A.Big Cities Facing Big DisastersB.Big Disasters in the Future
C.The Increase of Natural DisastersD.Solutions to Natural Disasters
小題2:What problem should be settled now in London?
A.How to protect the city’s property.
B.Where to build its flood defences.
C.How to use the Thames Barrier to protect the city.
D.How to improve the function of the old flood defences.
小題3: Which of the following measures can’t solve the heat wave disaster in Paris?
A.Putting up new types of buildings with a covering of bamboo.
B.Having air­conditioners installed in elderly care homes.
C.Forbidding the city to build “Flower Tower”.
D.Encouraging architects to design new types of buildings.
小題4:The major threats to Shanghai are ________.
A.increasing population and coal­fired power stations
B.rising sea levels and typhoons
C.extremely high temperature and rising sea levels
D.extra demands on energy consumption and typhoons
小題5:The purpose of the passage is ________.
A.to tell us how to protect the big cities
B.to give advice on how to defend natural disasters
C.to explain what causes flood and heat waves
D.to warn us of the increasing natural disasters in big cities

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

An American educational expert, Frederick M. Hess, says that a long summer vacation doesn’t make sense in today’s world.
This summer, 50 million kids will spend much time talking online, watching TV, playing video games and asking older brothers or sisters to take them to the supermarket. They will also be putting their academic futures at risk.
During much of the 20th century, many Americans worked in factories that did not need a college degree but still offered a high salary. Also, in the 19th century, there was no air condition. And poor hygiene (衛(wèi)生) meant that crowded schools had health risks.
Things have changed. For today’s students, academic skills are key to future success. Many countries don’t give kids an American-style summer vacation. They offer no more than seven consecutive (連續(xù)的) weeks of vacation. Most American school districts offer up to 13 weeks. To compete in global marketplace, Americans must be prepared to go up against international competitors.
Summer vacation also causes challenges for today’s families. In the 1960s, more than 60% of families had a stay-at-home mum. Now, two-thirds of American children live families where every adult works. For these families, summer vacation can be more burden than break. Someone must watch the kids.
But the biggest problem may be how summer vacation hurts academic achievement. Scientist have found that disadvantaged students lose important ground in the summertime.
A school year can allow time-limited teachers to conduct richer and more imaginative lessons. Schools would have more time for sports, languages, music and the arts.
小題1:Before the 20th century, a long summer vacation might ______.
A.reduce income for Americans
B.reduce health risks for students
C.cause career failure for Americans
D.cause loss in global market for America
小題2: How long does an American-style summer vacation last?
A.No more than two months.
B.Less than three months.
C.As long as three months.
D.As long as four months.
小題3:According to the text, who will benefit from a long school year?
A.American students, teachers and parents.
B.American students, parents and shop owners.
C.American students, parents and international competitors.
D.American students, teachers and international competitors.
小題4:How many reasons did the writer give to support his/her opinion?
A.One.B.Two.C.Three.D.Four.

查看答案和解析>>

科目:高中英語 來源:不詳 題型:完形填空

Electrical devices(儀器)could soon use power made by human energy. Scientists say
they have developed an experimental device that produces electricity from the physical movement of a person walking. British scientist Max Donelan and other scientists in Canada and the United States developed the device.
The device connects to a person’s knee. As the person walks, the device captures energy each time the person slows down. To do this, the device helps with the slowing down movement of the leg. The movements of the walking person push parts of a small machine
that produces electricity. Using the device, an adult walking quickly could produce thirteen watts of electricity in just a minute. Donelan says walking at that speed could produce enough power to operate a laptop computer for six minutes.
There are several possible uses for the device. Developers say it could help people who work in areas without electricity to operate small computers. The device could also be used in hospitals to operate heart pacemakers(起搏器). It could even be used to assist in the movement of robotic arms and legs.
The experimental version of the device weighs about one and a half kilograms, but it is too costly for most people to buy. But the researchers hope to make a lighter, less costly version. An improved version shou1d be ready in one year.
The developers hope the device will one day help developing countries. Near1y twenty five percent of people around the world live without electric power.
A similar product was invented in 2005 by Larry Rome of the University of Pennsylvania. He created a bag carried on a person’s back that also produces power from wa1king.
The knee device does not produce as much electricity as the bag. But the bag requires the walker to carry a load of twenty to thirty kilograms.
小題1:The second paragraph mainly talks about     .
A.who developed the device
B.how the device works
C.several possible uses for the devices
D.how much electricity the device can produce
小題2:What is the disadvantage of the experimental version of the device?
A.It is too heavy for the walker to bear.
B.It is too complex for people to use.
C.It is too expensive for most people to afford.
D.It will slow down one’s walking speed.
小題3:Compared with the device designed by Larry Rome, this new device     .
A.produces power without adding more loads to the walker
B.can produce more power in a much shorter time
C.needs to be equipped with a battery
D.can help the walker wa1k faster
小題4:From the passage, we can learn that the electrical device can     .
A.help housewives operate the washing machine
B.make it much easier for us to go online
C.produce more electricity than that invented by Larry Rome
D.be applied in medicine to operate heart pacemakers
小題5:What would be the best title for the passage?
A.First device powered by walking wi1l soon be on the market
B.Advanced technology brings in a new way to operate heart pacemakers
C.Device gives new meaning to the idea of power walking
D.Human energy will become a main source of electricity

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

Television is a relatively stable advertising medium. In many ways, the television ads today are almost the same to those two decades ago. Most television ads still feature actors, still run 30 or 60 seconds, and still show a product. However, the different medium of the Internet causes unique challenges to advertisers, forcing them to adapt their practices and techniques.
In the early days of Internet marketing, online advertisers used banner (框式廣告) and pop-up ads (彈出式廣告) to attract customers. These techniques reached large audiences, led to many sales leads, and came at a low cost. However, a small number of Internet users began to consider these advertising techniques annoying. Yet because marketing strategies relying heavily on banners and pop-ups produced results, companies invested growing amounts of money into purchasing these ad types. As consumers became more complicated, frustration with these online advertising techniques grew. Independent programmers began to develop tools that blocked banner and pop-up ads.
A major development in online marketing came with the introduction of pay-per-click ads. Unlike banner or pop-up ads, which originally required companies to pay every time a website visitor saw an ad, pay-per-click ads allowed companies to pay only when an interested potential customer clicked on an ad. More importantly, however, these ads are not affected by the pop-up and banner blockers. As a result of these advantages and the incredible growth in the use of search engines, which provide excellent places for pay-per-click advertising, a great number of companies began turning to pay-per-click marketing. However, as with the banner and pop-up ads, pay-per-click ads came with their shortcomings. When companies began pouring billions of dollars into this emerging medium, online advertising specialists started to notice the presence of what would later be called click fraud (欺詐): representatives of a company with no interest in the product advertised by a competitor click on the competitor’s ads simply to increase the marketing cost of the competitor. Click fraud grew so rapidly that marketers sought to diversify (擺脫) their online positions away from pay-per-click marketing through new mediums.
Although pay-per-click advertising remains a common and effective advertising tool, marketers adapted yet again to the changing elements of the Internet by adopting new techniques such as pay-per-performance advertising. As the pace of the Internet’s evolution increases, it seems all the more likely that advertising successfully on the Internet will require a strategy that avoids constancy (持續(xù)性) and welcomes change.
小題1:What is the main idea of the passage?
A.The pace of the Internet’s evolution is increasing and will only increase in the future.
B.Internet advertising fails to reach Internet users, causing ads to be blocked.
C.The Internet has experienced dramatic changes in short periods of time.
D.Rapid development of the Internet calls for new advertising strategies and mediums.
小題2:As an advertising medium, the television and the Internet mainly differ in ________.
A.the type of individual each medium reaches
B.whether the medium is interactive
C.the pace at which the medium develops
D.the cost of advertising with each medium
小題3:According to the passage, which of the following is a typical click fraud?
A.Using software to block competitors’ advertisements.
B.Clicking on the pay-per-click ads of competitors.
C.Clicking on the banner advertisements of opponent companies.
D.Using search engine to attack the pages of competitors.
小題4:What does the author imply about the future of pay-per-performance advertising?
A.It will eventually become less popular just like other forms of Internet advertising.
B.It will not face shortcomings due to its differing approach to online marketing.
C.Internet users will develop free software to block its effectiveness.
D.Although it improves on pay-per-click advertising, it still suffers from click fraud.

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

Imagine a classroom missing the one thing that’s long been considered a necessary part to reading and writing?Paper,No notebooks,no test paper.Nor are there any pencils or pens,which always seem to run out of ink at the critical moment.
A“paperless classroom”is what more and more schools are trying to achieve.Students don't do any handwriting in this class. Instead, they use palm (手掌) size, or specially-designed computers. The teacher downloads texts from Internet libraries and sends them to every student's personal computer.
Having computers also means that students can use the Web. They can look up information on any subject they're studying from math to social science.
High school teacher Judy Herrell in Florida, US, described how her class used the Web to learn about the war in Afghanistan (阿富汗) over one year ago.
"We could touch every side of the country through different sites? from the forest to refugee camps (難民營)," she said. "Using a book that's three or four years old is impossible."
And exams can go online too. At a high school in Tennessee, US, students take tests on their own computers. The teacher records the grades on the network for everyone to see and then copies them to his own electronic grade book.
A paperless classroom is a big step towards reducing the waste of paper. High school teacher Stephanie Sorrell in Kentucky, US, said she used to give about 900 pieces of paper each week to each student.
"Think about the money and trees we could save with the computers," she said.
But, with all this technology, there's always the risk that the machines will break down. So, in case of a power failure or technical problems, paper textbooks are still widely available for these hi-tech students.
小題1:What does the part of the last sentence in the first paragraph, “run out of ink at the critical moment”, mean?
A.Pens may not write well at the critical moment.
B.Pens get lost easily, so you may not find them at the critical moment.
C.Pens may have little or no ink at the critical moment.
D.Pens use ink, while pencils don't.
小題2:In a paperless classroom, what is a must?
A.Pens.B.Computers.C.Information.D.Texts.
小題3:The high school teacher, Judy Herrell, used the example of her class to show that _______.
A.the Web could take them everywhere
B.the Web taught them a lot
C.the Web is a good tool for information
D.the Web better than the textbooks, can give the latest and comprehensive (全面的) information
小題4:The paperless classrooms will benefit _____ the most.
A.studentsB.teachersC.treesD.computers
小題5:What does the phrase in the last paragraph, “break down”, mean?
A.Break into pieces.B.Stop working
C.Fall down.D.Lose control.

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

Robots are smart. With their computer brains, they help people work in dangerous places or do difficult jobs. Some robots do regular jobs. Bobby, the robot mail carrier, brings mail to a large office building in Washington, D.C. He is one of 250 robot mail carriers in the United States. Mr. Leachim, who weights two hundred pounds and is six feet tall, has some advantages as a teacher. One is that he does not forget details. He knows each child’s name, their parents’ names, and what each child knows and needs to know. In addition, he knows each child’s pets and hobbies. Mr. Leachim does not make mistakes. Each child goes and tells him his or her name, then dials an identification (識別) number. His computer brain puts the child’s voice and number together. He identifies the child with no mistakes.
Another advantage is that Mr. Leachim is flexible. If the children need more time to do their lessons they can move switches. In this way they can repeat Mr. Leachim’s lesson over and over again. When the children do a good job, he tells them something interesting about their hobbies. At the end of the lesson the children switch Mr. Leachim off.
小題1:The first paragraph of the passage tells us
A.human beings are not as smart as robots
B.robots will take the place of man to rule the earth
C.we can only use robots to do some regular jobs
D.robots can help people in many different ways
小題2:What is the most important thing Mr. Leachim can do in his lessons?
A.To meet the needs of each student.
B.To talk to the students in different languages.
C.To keep everyone’s interest in his lessons.
D.To introduce more hobbies to the children.
小題3:The underlined word “flexible” probably means
A.not strictB.not hard
C.suitableD.changeable
小題4:Which of the following statements may be TRUE according to the passage?
A. There are 250 robot teachers in the United States.
B. Mr. Leachim is run and controlled by electricity.
C. Bobby works in a large office building in Washington D.C.
D. The lessons taught by Mr. Leachim are given on a TV set.

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

To master a language one must be able to speak and understand the spoken language as well as to read and write.Lenin and his wife Krupskaya translated a long English book into Russian.But when they went to England in 1980, English people couldn’t understand what was said to them.These days more foreigners are coming to China and more and more Chinese are going out to foreign countries to work or study.So the spoken language is becoming more and more important.Speaking, of course, can’t go without listening.If you want to pronounce a word correctly, first you must hear it correctly.The sounds of the Chinese and English language are not exactly the same.If you don’t listen carefully, you’ll find it difficult or even impossible to understand the native speakers.
Well, what about writing? Like speaking, it’s to exchange ideas.People generally use shorter words and shorter sentences in their writing.The important thing is to make your idea in your head and then to write it in clear lively language
Chinese students read far too slowly.If you read fast, you understand better.If you read too slowly, by the time you have reached the end of a page you have forgotten what the beginning is about.When you meet with new words, don’t look them up in the dictionary.Guess the meaning from the context.You may not guess quite correctly the first time, but as new words come up again and again in different contexts, their meaning will become clearer and clearer.If you look up every word, you’ll never finish a book.
Students of a foreign language need a particular knowledge, the knowledge of the life, history and geography of the people whose language they’re studying.They should study these subjects in the foreign language, not only in translation.In this way one can kill two birds with one stone: learn a foreign language and get some knowledge of the foreign country at the same time.
小題1:How many points are there in the passage?
A.TwoB.ThreeC.FourD.Five
小題2:In his first point the writer told us
A.how to speak English
B.how to read and write
C.why spoken English is important
D.why English people couldn’t understand Lenin
小題3:In his last point the writer advised us
A.to kill two birds with one stone
B.to learn two languages at a time
C.to study all the subjects in a foreign language
D.to get some knowledge of the foreign country whose language you are studying.
小題4:“To kill two birds with one stone” means
A.to get some particular knowledge
B.to get more than what one pays
C.the stone is too big
D.the birds are blind enough

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

Recently there was a major discovery in the scientific research—the mapping of all DNA in a human gene(基因) is complete.Couple of years ago, this seems an impossible task for scientist to accomplish.All this progress in science leads us to believe that the day, when the human being will be cloned, is not far away.Human cloning has always been a topic of argument, in terms of morality or religion.
Taking a look at why cloning might be beneficial, among many cases, it is arguable that parents who are known to be at risk of passing a genetic limitation to a child could make use of cloning.If the clone was free of genetic limitations.then the other clone would be as well.The latter could foe inserted in the woman and allowed to ripen to term.Moreover, cloning would enable women, who can't get pregnant, to have children of their own.
Cloning humans would also mean that organs could be cloned, so it would be a source of perfect transfer organs.This, surely would be greatly beneficial to millions of unfortunate people around the world that are expected to lose their lives due to failure of single (or more) organ (s).It is also arguable that a ban on cloning may be unlawful and would rob people of the right to reproduce and limit the freedom of scientists.
Arguments against cloning are also on a perfectly practical side.Primarily, I believe that cloning would step in the normal "cycle" of life.There would be a large number of same genes, which reduce the chances of improvement, and, in turn, development—the fundamental reason how living things naturally adapt to the ever-changing environment.Life processes failing to do so might result in untimely disappearance.Furthermore, cloning would make the uniqueness that each one of us possesses disappear.Thus, leading to creation of genetically engineered groups of people for specific purposes and, chances are, that those individuals would be regarded as "objects" rather than people in the society.
Scientists haven't 100 per cent.guaranteed that the first cloned humans will be normal.Thus this could result in introduction of additional limitations in the human "gene-pool".
Regarding such arguable topics in "black or white" approach seems very innocent to me personally.We should rather try to look at all "shades" of it.I believe that cloning is only legal if its purpose is for cloning organs; not humans.Then we could regard this as for "saving life" instead of "creating life".I believe cloning humans is morally and socially unacceptable.
小題1:Which of the following is true according to the passage?
A.Genetic limitation will be beneficial for some women
B.A large number of genes will prevent us from developing
C.Prohibition of cloning might limit the freedom of scientists
D.First cloned humans might be normal according to scientists
小題2:What's the author's opinion on cloning?
A.Cloning should be entirely banned.
B.Cloning should be used in creating life.
C.Cloning will take away the right to reproduce.
D.Cloning is acceptable if it is used for cloning organs.
小題3:Where can you read this article?
A.In a story book
B.In a magazine
C.In a science fiction
D.In a brochure
小題4:Which of the following shows the structure of the passage?

查看答案和解析>>

同步練習(xí)冊答案
国产羞羞视频在线播放| 国产美女视频91| 性一交一乱一区二区洋洋av| 国产精品美女久久久| 久久久久国产一区二区| 激情小说亚洲一区| 99久久er热在这里只有精品15 | 无码人妻精品一区二区三区9厂| 无码人妻精品一区二区| 99精品久久久久久中文字幕| 天天色棕合合合合合合合| 午夜成在线www| 国产玉足榨精视频在线观看| 成人在线视频亚洲| 亚洲男帅同性gay1069| 综合欧美亚洲日本| 午夜精品久久久久久| 在线视频国内自拍亚洲视频| 日韩欧美国产成人一区二区| 日韩av在线一区| 色视频www在线播放国产成人| 久久久久久成人精品| 国产一区二区在线播放| 蜜桃久久精品乱码一区二区| a级片一区二区| 国产色视频一区| 久久99导航| 18禁裸男晨勃露j毛免费观看| 亚洲精品高清无码视频| 手机在线看片日韩| 精品亚洲永久免费| 国产福利资源在线| 国产二区视频在线观看| 国产在线1区| 国产原创一区| 久久在线视频| 日韩av免费大片| 日韩精品一区第一页| 99久久免费精品| 亚洲国产美女搞黄色| 日韩久久久久久| 欧美黑人一级爽快片淫片高清| 91人人爽人人爽人人精88v| 亚洲欧洲国产日韩精品| 日本特黄a级片| 精品人妻中文无码av在线| 国产免费观看av| 日本一区二区欧美| 日韩中文字幕观看| 菠萝菠萝蜜在线视频免费观看| 91成人在线网站| 色8久久久久| 日韩欧美精品一区| 精品夜夜嗨av一区二区三区| 亚洲欧美日韩小说| 精品美女在线观看| 91av在线播放视频| 午夜精品视频在线观看一区二区| 中文字幕永久有效| 久草视频在线资源站| 天天爱天天干天天操| 欧美14一18处毛片| 国产精品午夜av| 国产精品v一区二区三区| 高清免费成人av| 国产v综合v亚洲欧| 懂色av一区二区三区| 亚洲人成伊人成综合网久久久| 国产精品人成电影在线观看| 性欧美.com| 久草视频福利在线| 中文字幕永久在线| 黄色在线播放网站| 久久这里只有精品一区二区| 日韩二区三区四区| 亚洲一区二区av在线| 一本一道久久a久久精品逆3p| 欧美亚洲国产另类| 亚洲精品一区二区三区四区五区| 国产欧美视频一区| 中文字幕在线播放不卡| www免费在线观看| 一区二区三区韩国免费中文网站| 激情国产一区二区| 欧洲中文字幕精品| 亚州国产精品久久久| 日韩欧美精品久久| 国产精品裸体瑜伽视频| 刘亦菲国产毛片bd| 中文字幕第12页| 日本国产一区| 青青草97国产精品免费观看| 亚洲va天堂va国产va久| 欧美美最猛性xxxxxx| 日本午夜精品一区二区| 婷婷五月精品中文字幕| 99久久国产热无码精品免费| 国产资源在线观看入口av| 一区二区三区在线| 中日韩av电影| 一级做a爰片久久毛片美女图片| 国产高清在线精品一区二区三区| 午夜啪啪小视频| 一炮成瘾1v1高h| 五月香视频在线观看| 欧美激情在线免费| 久久久久久久久久久黄色| 亚洲精品一区二区三区香蕉| 97av自拍| 国产免费a级片| 风流老熟女一区二区三区| 99欧美精品| 久久精品国产精品青草| 欧美视频精品在线观看| 国产精品美女av| 天天综合天天添夜夜添狠狠添| 亚洲综合精品国产一区二区三区| 蜜桃av在线| 久久中文欧美| 欧美日韩国产综合一区二区三区 | 亚洲精品午夜在线观看| 中文字幕精品无码亚| 小h片在线观看| 日韩制服丝袜av| 欧美三级欧美一级| 91啪国产在线| 中文字幕免费在线播放| 91破解版在线看| 秋霞影院一区二区三区| 国产亚洲人成网站| 三级精品视频久久久久| 久久人妻无码一区二区| 奇米影视第四色777| 欧美69xxx| 亚洲香蕉网站| 一本大道久久精品懂色aⅴ| 国产精品久久久久久久久久久新郎 | 亚洲熟女一区二区| 精品人妻一区二区三区蜜桃| 久久久91麻豆精品国产一区| 99久久99久久精品免费观看| 亚洲第一男人天堂| 日本在线视频一区| 成人观看免费视频| 青青草视频在线免费直播| 免费视频一区二区三区在线观看| 欧美精选一区二区| 久久99影院| 中文字幕五月天| 2021中文字幕在线| 麻豆高清免费国产一区| 亚洲精品久久久久久久久久久久久| 日本一区二区三区四区高清视频 | 国产欧美精品一区二区色综合| 一区二区国产精品视频| 欧美日韩dvd| 亚洲av人无码激艳猛片服务器| 欧美日韩女优| 99精品欧美一区二区三区小说| 中文字幕av日韩| 99在线观看视频网站| 谁有免费的黄色网址| av网站导航在线观看免费| 久久免费高清| 日韩大陆欧美高清视频区| 三级网在线观看| 91片黄在线观看喷潮| 色综合视频一区二区三区日韩 | 亚洲精品88| 国产精品综合视频| 色999日韩欧美国产| 妺妺窝人体色www在线小说| 亚洲国产精品国自产拍久久| 丁香花在线影院| 日韩高清欧美激情| 亚洲码在线观看| 日韩精品xxxx| 天堂av一区二区三区| 欧美顶级大胆免费视频| 精品视频在线视频| 狠狠色伊人亚洲综合网站色| 欧美成人国产精品高潮| 欧美黄页在线免费观看| 国产精品久久久久影视| 国产精品一区二区三区久久 | 日本免费在线播放| 国产激情一区| 一区二区三区国产| 国产美女久久精品| √天堂中文官网8在线| 视频精品导航| 国产欧美一区二区三区鸳鸯浴 | 啪啪一区二区三区| 成人网ww555视频免费看| 久久亚洲一级片| 国产精品视频网址| 成人涩涩小片视频日本| 亚洲欧美综合久久久久久v动漫| 国产精品国产三级国产有无不卡 | 丝袜美腿小色网| 9999在线精品视频| 亚洲网友自拍偷拍| 国产一区高清视频| 色老头一区二区| 国产探花一区| 欧美www视频| 黄色一级片播放| 免费在线视频一级不卡| 久久国产福利国产秒拍| 日韩性xxxx爱| 国产毛片毛片毛片毛片毛片毛片| 波多野一区二区| 中文字幕一区在线观看视频| 国产精品久久久一区二区三区| 亚洲影院在线播放| 青草国产精品| 日韩一区二区三区在线| 欧美日韩黄色一级片| 国产视频在线看| youjizz久久| 成人黄色免费在线观看| 久久久久无码精品国产| 牛牛影视久久网| 91精品久久久久久久91蜜桃| 免费日韩视频在线观看| 日韩av中文| 国产.欧美.日韩| 国产精品视频免费观看www| 日韩精品久久久久久久| 成久久久网站| 国产一级片网址| 国内免费精品永久在线视频| 亚洲美女在线播放| a天堂资源在线| 亚洲三级小视频| 先锋在线资源一区二区三区| 国产精品久久久久白浆| 国产一区不卡视频| 午夜精品蜜臀一区二区三区免费 | 中文日产幕无线码一区二区| 洋洋av久久久久久久一区| 伊人精品久久久久7777| 丰满岳乱妇国产精品一区| 日韩精品每日更新| 欧美一区二区色| a v视频在线观看| 日韩精品网站| 最近2019中文字幕大全第二页| 蜜桃av免费看| 噜噜噜天天躁狠狠躁夜夜精品| 日韩亚洲欧美高清| 日本一二三区在线| 巨胸喷奶水www久久久免费动漫| 色综合久久99| 国产1区2区在线| 久久久男人天堂| 亚洲精品成人精品456| 中文字幕制服丝袜在线| 成年人在线观看网站| 国产蜜臀97一区二区三区| 久久精品国产第一区二区三区最新章节 | 亚洲成人a级片| 欧美日韩国产成人在线免费| 91亚洲免费视频| 亚洲精品555| 日韩欧美在线1卡| 天天摸天天舔天天操| 免费观看一级欧美片| 欧美天堂一区二区三区| 在线观看免费成人av| 亚洲综合影视| 精品久久久一区二区| 黄色a级片免费| 欧美1级2级| 欧美成人aa大片| 美女网站视频色| 亚洲午夜一区| 国产日韩视频在线观看| 白虎精品一区| 亚洲另类春色国产| 日韩av手机版| 成人精品毛片| 久久国产精品电影| 国产乱码在线观看| 国产成人无遮挡在线视频| 午夜老司机精品| h片在线观看下载| 欧美va亚洲va国产综合| 少妇高潮在线观看| 日韩香蕉视频| www.成人av.com| 无遮挡动作视频在线观看免费入口| 激情亚洲一区二区三区四区| 在线观看网站黄| 精品国产一区二区三区久久久蜜臀| 97在线视频精品| 丰满人妻一区二区三区无码av| 欧美国产精品专区| 欧在线一二三四区| 国产精品网址| 性色av一区二区三区免费| 亚洲国产精品suv| 亚洲天堂成人在线观看| 久久人人爽av| 欧美影院三区| 国产自摸综合网| av电影在线网| 91精品在线观看入口| 人妻人人澡人人添人人爽| 日本美女一区二区三区| 色播亚洲视频在线观看| 成人黄色免费短视频| 中文亚洲视频在线| 97精品人妻一区二区三区香蕉| 国产欧美一区在线| 最新av免费在线观看| 日韩欧美视频在线播放| 亚洲一区二区三| 伊人手机在线| 日韩精品免费视频| 国产精品一区无码| 久久免费的精品国产v∧| 毛片一区二区三区四区| 九九久久婷婷| 国产情人节一区| 欧美日本一道| 日韩欧美123| 免费观看日批视频| 欧美国产1区2区| 曰本三级日本三级日本三级| 欧美色123| 欧美连裤袜在线视频| 小黄鸭精品aⅴ导航网站入口| www.亚洲一区| 91成人福利在线观看| 日本道精品一区二区三区| 夫妻性生活毛片| 成a人片亚洲日本久久| 看欧美ab黄色大片视频免费 | 黄av在线播放| 国产丝袜一区二区三区免费视频| 中国老头性行为xxxx| 综合激情成人伊人| 亚洲调教欧美在线| 日韩av一二三| 少妇高潮毛片色欲ava片| 神马电影久久| 精品卡一卡二| 四虎精品一区二区免费| 18久久久久久| 欧美a在线看| 亚洲午夜久久久影院| 丰满熟妇乱又伦| 欧美亚一区二区| 久久久久99精品成人片我成大片| 日本一区二区在线不卡| 国产白嫩美女无套久久| 免费成人av资源网| 激情五月开心婷婷| 先锋资源久久| 亚洲不卡一卡2卡三卡4卡5卡精品| 精品视频91| 成人精品福利视频| 韩国精品一区| 69影院欧美专区视频| 成人影欧美片| 久久天天躁狠狠躁老女人| 午夜黄色在线观看| 亚洲福利视频在线| www.亚洲欧美| 欧美精品aⅴ在线视频| 中文在线字幕av| 日韩欧美国产网站| 久久久久久少妇| 亚洲午夜在线视频| 欧美成人精品欧美一级| 国产精品无圣光一区二区| 久久美女免费视频| 99精品视频在线免费观看| 污污内射在线观看一区二区少妇 | 视频亚洲一区二区| 不卡一卡2卡3卡4卡精品在| 九九久久国产| 亚洲综合精品一区二区| 久久久久毛片| 亚洲影视九九影院在线观看| 欧美黄色成人| 51国偷自产一区二区三区| 九色在线观看视频| 91久久香蕉国产日韩欧美9色| www.av麻豆| 亚洲成av人片| 无码人妻aⅴ一区二区三区有奶水 无码免费一区二区三区 | 345成人影院| 国产精品一区二区三区成人| av成人在线播放| 亚洲一区二区免费在线| 精品国产乱码一区二区三区| 国产精品一区二区三区精品| 中文字幕人妻熟女人妻a片|