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

                            Preface

Science is a dominant(占優勢的) theme in our culture. Since it touches almost every facet of our life, educated people need at least some acquaintance with its structure and operation. They should also have an understanding of the subculture in which scientists live and the kinds of people they are. An understanding of general characteristics of science as well as specific scientific concepts is easier to attain if one knows something about the things that excite and frustrate the scientist.

 This book is written for the intelligent student or lay person whose acquaintance with science is superficial; for the person who has been presented with science as a musty storehouse of dried facts; for the person who sees the chief objective of science as the production of gadgets; and for the person who views the scientists as some sort of magician. The book can be used to supplement a course in any science, to accompany any course that attempts to give an understanding of the modern world, or – independently of any course – simply to provide a better understanding of science. We hope this book will lead readers to a broader perspective on scientific attitudes and a more realistic view of what science is, who scientists are, and what they do. It will give them an awareness and understanding of the relationship between science and our culture and an appreciation of the roles science may play in our culture. In addition, readers may learn to appreciate the relationship between scientific views and some of the values and philosophies that are pervasive(普遍的;深入的)in our culture.

 We have tried to present in this book an accurate and up-to-date picture of the scientific community and the people who populate it. That population has in recent years come to comprise more and more women. This increasing role of women in the scientific subculture is not a unique incident but, rather, part of the trend evident in all segments of society as more women enter traditionally male-dominated fields and make significant contributions. In discussing these changes and contribution, however, we are faced with a language that is implicitly sexist, one that uses male nouns or pronouns in referring to unspecified individuals. To offset this built-in bias, we have adopted the policy of using plural nouns and pronouns whenever possible and, when absolutely necessary, alternating he and she. This policy is far form being ideal, but it is at least an acknowledgment of the inadequacy of our language in treating half of the human race equally.

 We have also tried to make the book entertaining as well as informative. Our approach is usually informal. We feel, as do many other scientists, that we shouldn’t take ourselves too seriously. As the reader may observe, we see science as a delightful pastime rather than as a grim and dreary way to earn a living.

According to the passage, ‘scientific subculture’ means

A  cultural groups that are formed by scientists. B  people whose knowledge of science is very limited.

C  the scientific community.    D  people who make good contribution to science.

We need to know something about the structure and operation of science because

A. it is not easy to understand the things that excite and frustrate scientists.

B Science affects almost every aspect of our life.

C Scientists live in a specific subculture.  D It is easier to understand general characteristics of science.

The book mentioned in this passage is written for readers who

A are intelligent college students and lay person who do not know much about science.

B are good at producing various gadgets.

C work in a storehouse of dried facts.    D want to have a superficial understanding of science.

According to this passage,

A English is a sexist language.  B only in the scientific world is the role of women increasing rapidly.

C women are making significant contributions to eliminating the inadequacy of our language.

D male nouns or pronouns should not be used to refer to scientists.

This passage most probably is

A. book review. B the preface of a book.  C the postscript of a book.  D the concluding part of a book.

【小題1】C

【小題2】B

【小題3】A

【小題4】D

【小題5】B


解析:

這是一篇書的序言,作者用夾敘夾議的寫作方法介紹了書的涉及面及其功能。

首先提出科學是我們文化的重大主題,但人們也該了解科學家生活的亞文化群,只有懂得一些激勵和挫傷科學家的種種情況,才能理解科學的一般特征及其特殊概念。

第二方面指出書的讀者對象是對科學一知半解的學生及門外漢。書可作理工科課程的輔助(補充)讀物,又可獨立自成體系。它可開闊人們科學的視野,真正了解科學、科學家及其工作,理解科學和文化的關系,科學觀點和哲學的關系。

第三方面指出亞文化群中婦女增多,貢獻巨大,而我們的語言卻隱含這性別的歧視,難以充分平等地反映婦女。

最后指出書信息量大又具娛樂性,寓教于樂。

【小題1】科學社區。答案在第一段第二句,人們也該了解科學家生活在其中的亞文化群以及他們是什么樣的人。第三段又講到,有關科學社區的畫面以及婦女對科學亞文化的貢獻。可見科學社區即亞文化。

A. 科學家所組成種種文化群體。  B. 科學知識有限的一些人。  C.  對科學作出很大貢獻的人。

【小題2】因為科學幾乎影響到我們生活的各個方面。文章開綜明旨點出:科學是我們文化中的重要主題,由于它幾乎涉及到我們生活的每一方面,有知識的人至少需要熟悉一些結構和作用。

A. 了解激發和挫傷科學家的事情可不太容易。(比較難) C. 科學家生活在特定的亞文化群中。D. 了解科學的一般特性比較容易。

【小題3】不太了解科學的大學生或門外漢。第二段首句就點出了這本書為對科學一知半解的大學生和門外漢所寫,為某些人,一直把科學看作干巴巴的事實堆砌的發霉的石屋的人;為那種把科學的主要目的視為生產小配件的人;為那些把科學視為某種魔術的人而寫。這說明主要為A項人所寫,對科學了解不多的大學生和普通人。

B. 善于生產各種小配件。  C. 在干巴巴的事實堆砌的石屋中工作。 D. 相對科學有膚淺了解的人。

【小題4】 不應當用陽性的名詞和代詞去指科學家。第三段集中講了這本書提供精確而又現代的有關科學社區(社會)和居住在其中的人的畫卷。近年來,越來越多的婦女包括進來,原因是許多婦女進入傳統上為男人統治的領域,并做出巨大貢獻,所以婦女在科學亞文化群中的增多并不是罕見的偶然事件,而是社會各部門明顯趨勢的組成部分。在討論其變化和貢獻時,我們面臨著隱含性別歧視的語言――用陽性名詞和代詞來指未指定人物,為了消除這種偏頗,我們在可能和必要時采用了復數名詞和代詞來取代他或她。

A. 英語是一種性別語言。 B. 只有在科學領域中,婦女的作用增長很快。 C. 婦女在曉民我們語言中的不適當性作出了巨大的貢獻。根據此題注釋說明這三項都不對。英語不能說成是有性別的語言,其中雖有些詞性表示男性或女性。文內明確指科學界婦女增多是整個社會的趨勢的組成部分。由于婦女在科學界的貢獻,所以不能再用陽性名詞或代詞去指科學界,并不是在消滅語言……

【小題5】書的前言,見文章大意。A. 書的評論。 C. 書跋、書的附錄。 D. 書的結論部分。

練習冊系列答案
相關習題

科目:高中英語 來源: 題型:

—How can I wake up so early?

—Set the alarm at 5 o’clock, ________ you’ll make it.

A. but       B. or          C. and       D. so

查看答案和解析>>

科目:高中英語 來源: 題型:閱讀理解

The way people hold to the belief that a fun - filled, pain free life equals happiness actually reduces their chances of ever attaining real happiness. If fun and pleasure are equal to happiness then pain must be equal to unhappiness. But in fact, the opposite is true: more often than not things that lead to happiness involve some pain.

As a result, many people avoid the very attempts that are the source of true happiness. They fear the pain inevitably brought by such things as marriage, raising children, professional achievement, religious commitment (預擔的義務), self - improvement.

Ask a bachelor(單身漢) why he resists marriage even though he finds dating to be less and less satisfying. If he is honest he will tell you that he is afraid of making a commitment. For commitment is in fact quite painful. The single life is filled with fun, adventure, excitement. Marriage has such moments, but they are not its most distinguishing features.  

Couples with infant children are lucky to get a whole night’s sleep or a three - day vacation. I don’t know any parent who would choose the word fun to describe raising children. But couples who decide not to have children never know the joys of watching a child grow up or of playing with a grandchild.

Understanding and accepting that true happiness has nothing to do with fun is one of the most liberating realizations. It liberates time: now we can devote more hours to activities that can genuinely increase our happiness. It liberates money: buying that new car or those fancy clothes that will do nothing to increase our happiness now seems pointless. And it liberates us from envy: we now understand that all those who are always having so much fun actually may not be happy at all.

According to the author, a bachelor resists marriage chiefly because ________ .

A. he is reluctant to take on family responsibilities

B. he believes that life will be more cheerful if he remains single

C. he finds more fun in dating than in marriage

D. he fears it will put an end to all his fun adventure and excitement

Raising children, in the author’s opinion is ________ .

A. a moral duty               B. a thankless job

C. a rewarding task            D. a source of inevitable pain

From the last paragraph, we learn that envy sometimes stems from ________ .

A. hatred  B. misunderstanding  C. prejudice     D. ignorance

To understand what true happiness is one must ________ .

A. have as much fun as possible during one’s lifetime

B. make every effort to liberate oneself from pain

C. put up with pain under all circumstances

D. be able to distinguish happiness from fun

What is the author trying to tell us?

A. Happiness often goes hand in hand with pain.

B. One must know how to attain happiness.

C. It is important to make commitments.

D. It is pain that leads to happiness.

查看答案和解析>>

科目:高中英語 來源: 題型:閱讀理解

There are several ways you can find out about the countries and places you wish to visit. You can talk to friends who have travelled to the places. Or you can go and see a colour film. Or you can read travel books.

It would seem that there are three kinds of travel books. The first are those that give a personal, subjective(主觀的) account of travels which the author has actually made himself. if they are informative and have a good index(索引), then they can be useful to you when you are planning your travels. The second kind are those books whose purpose is to give a purely objective(客觀的) description of things to be done and seen. If a well-read, cultured person has written such a book, then it is even more useful. It can be sorted as a selected guide book. The third kind are those books which are called “a guide” to some place or other. If they are good, they will, in addition to their factual information, give an analysis or an explanation. Like the first kind they can be inspiring and interesting. But their basic purpose is to help the reader who wishes to plan in the most practical way.

Whatever kind of travel book you choose you must make sure that it does not describe everything as “wonderful”, “excellent” or “magical”. You must also note its date of publication because travel is a very practical affair and many things change quickly in the twenty-first century. Finally, you should make sure that the contents are well presented and easy to find.

This passage is about _______.

A. how to travel                          B. how to buy travel books

C. how to read a travel book         D. travel books

The following travel books may be of use when you plan your travels except _______.

A. the book written by some people who have had the same travel experience themselves

B. the book which tells you what is worth doing and seeing based on the facts

C. the book in which a lot of big adjectives are used to draw your attention

D. the book which offers you a lot of useful information like a tour guide

The date of the publication must be noticed because _______.

A. the world is changing and so are the places you are going to visit

B. the price of the book is always changing

C. the author of the book may be different

D. the contents of the book are always the same

查看答案和解析>>

科目:高中英語 來源: 題型:閱讀理解

A black hole is created when a large star burns out. Like our sun, stars are unbelievably hot furnaces (熔爐) that burn their own matter as fuel. When most of the fuel is used up, the star begins to die.

The death of a star is not a quiet event. First there is a huge explosion. As its outer layer is blasted off into space, the dying star shines as brightly as a billion suns.

After the explosion gravity pulls in what’s left of the star. As the outside of the star sinks toward the center, the star gets smaller and smaller. The material the star is made of becomes tightly packed together. A star is so dense that a teaspoon of matter from it weighs billion of pounds.

The more the star shrinks, the stronger the gravity inside it becomes. Soon the star is very tiny, and the gravity pulling it in is unbelievably strong. In fact, the gravity is so strong that it even pulls light into the star! Since all the light is pulled in, none can go out. The star becomes black when there is no light. Then a black hole is born!

That’s what we know about black holes. What we don’t know is this: What happens inside a black hole after the star has been squeezed into a tiny ball? Does it keep getting smaller and smaller forever? Such a possibility is hard to imagine.

But if the black hole doesn’t keep shrinking, what happens to it? Some scientists think black holes are like doorways to another world. They say that as the star disappears from our universe, it goes into another universe. In other words a black hole in our universe could turn into a “white hole” in a different universe. As the black hole swallows light, the white hole shines brightly—somewhere else. But where? A different place, perhaps, or a different time — many years in the past or future.

Could you travel through a black hole? Right now, no. Nothing we know of could go into a black hole without being crushed. So far the time being, black hole must remain a mystery.

Black holes are a mystery—but that hasn’t stopped scientists from dreaming about them. One scientist suggested that in the future we might make use of the power of black holes. They would supply all of Earth’s energy needs, with plenty to spare. Another scientist wondered if a black hole could some day be used to swallow earthly waste—a sort of huge waste disposal(處理) in the sky!

When the star begins to die ______.

A. there is no fuel left in it                                B. its outer layer goes into space first

C. a huge explosion will happen                         D. it doesn’t give off light any longer

Which of the following doesn’t help produce a black hole?

A. The gravity inside the star is very strong.        B. The light can’t go out of the star.

C. The star becomes smaller and smaller             D. The dying star shines very brightly.

The black hole ______.

A. continues becoming smaller and smaller all the time

B. goes into another universe and becomes a white hole

C. can pull in everything we know of in the world

D. will appear at another place at a different time

What’s the best title for this passage?

A. A New Scientific Discovery: Black Holes

B. How Do Black Holes Come Into Being?

C. What Are Black Holes?

D. Travel Through A Black Hole

查看答案和解析>>

科目:高中英語 來源: 題型:閱讀理解

Sitting and eating quietly on his father’s lap, the 18-month-old was oblivious to the infection in his veins(血管).But his father a strong farmer, knew only too well. It was the same one that killed his wife four month ago, leaving him alone with four children. The man started to cry.

“When my wife died, I thought ,well, it is from God, but at least I have him.” he said. “Then I learned he is sick, too. I asked if there was medicine and the doctors said no.

HIV and AIDS have quietly arrived in this land. They remain almost completely underground, hidden in ignorance(無知)and shame.

The father of the infected 18-month-old said his village teacher had never talked about AIDS. Nearly a year of tests on the father have found no HIV, and the old children are clear, but his smallest child tested positive(陽性)at ten months.

Six years earlier, his wife lost a baby and have several transfusions in Pakistan. After she became sick and was found to be infected, “I told the family her blood was not good and to avoid eating with her.” he said. “And I told them not to kiss his son, he burst into tears.

“I don’t know what to do,” he said; “I have sacrificed so much since my marriage.. I mortgaged (抵押)half my land to pay for her medical care.”

The father can do little for his son but keep his secret. There are no AIDS treatment centers in Afghanistan, only a single secret clinic in the capital that just monitors the disease, and no drugs are available.

The underlined part “was oblivious to” in Paragraph 1 can best be replaced by______.

A.    was shocked by

B.    was afraid of

C.    was curious about

D.    was unaware of

What happened to the man?

A.    He was diagnosed with AIDS just now

B.    He has no money to support the family

C.    His wife died of AIDS four weeks ago

D.    His youngest son was infected with AIDS

It can be inferred from Paragraph 5 that______

A.    the wife had several blood transfusions

B.    the family knew how to avoid AIDS

C.    the farmer had little knowledge about AIDS

D.    the family loved the youngest son most

Which of the following is TRUE according to the passage?

A.    There are several AIDS treatment centers in Afghanistan

B.    The farmer will keep his son’s disease unknown to others

C.    The farmer sold his house to pay for his wife’s medial care

D.    Afghanistian’s medical conditions have been greatly improved.

查看答案和解析>>

科目:高中英語 來源: 題型:

. Now that we’ve discussed our problem, are people happy with the decisions ________?

A. taking B. take

C. taken  D. to take

查看答案和解析>>

科目:高中英語 來源: 題型:

_____ in thought , he almost ran into the car in front of him .

      A. Losing         B. Having lost      C. Lost                D. To

查看答案和解析>>

科目:高中英語 來源: 題型:

I lived in Beijing,_____is the capital of China.

        A.which   B.where    C.that     D.what

查看答案和解析>>

同步練習冊答案
www.com在线观看| 91九色精品| 欧美精品色图| 国产亚洲综合av| 日韩国产在线看| 超碰97网站| 图片区偷拍区小说区| 一区二区三区黄色片| 偷拍中文亚洲欧美动漫| 日韩国产精品大片| 欧美日韩精品一区二区三区四区| 国产精品嫩草视频| 欧美一级大片免费看| 囯产精品久久久久久| 婷婷综合国产| 国产精品日日摸夜夜摸av| 色综合久久中文字幕综合网小说| 日韩网站在线免费观看| 亚洲毛片一区二区三区| 四虎国产精品免费久久5151| 99精品欧美一区二区蜜桃免费| 亚洲男人天堂网| 青青青国产在线观看| 国产99视频在线| 夜夜春成人影院| 国产精品视频一区二区三区综合 | 蜜桃视频www网站在线观看| 九一九一国产精品| 日韩在线视频观看| 91av在线免费播放| 97香蕉久久| 亚洲乱码电影| 精品国产乱码久久久久久夜甘婷婷| av不卡在线免费观看| 怡红院成永久免费人全部视频| 久草在线综合| 欧美亚洲一区二区在线| 亚洲图片都市激情| 国产视频手机在线观看| 日韩欧美不卡| 精品欧美一区二区久久| 欧美啪啪免费视频| 黄色小视频在线免费观看| 奇米精品一区二区三区在线观看 | 91麻豆精品国产91久久久更新时间| 久久偷看各类wc女厕嘘嘘偷窃 | 日韩久久免费av| 色一情一乱一伦一区二区三区日本| 性欧美精品孕妇| 韩国女主播成人在线| 欧洲成人免费aa| 亚洲天堂第一区| 男女视频在线观看免费| 国产成人免费av在线| 国产精品普通话| 日韩成人一区二区三区| 日韩欧美大片| 尤物tv国产一区| 丰满大乳奶做爰ⅹxx视频| 巨茎人妖videos另类| 欧美日韩在线免费| 成人免费在线小视频| 日本理论片午伦夜理片在线观看| 国产欧美日韩一区二区三区在线观看| 亚洲一区二区三区乱码aⅴ蜜桃女| 波多野结衣网站| 亚洲欧美久久| 国产欧美最新羞羞视频在线观看| 中文在线a天堂| 日本sm残虐另类| 成人国产精品日本在线| 国产人妻精品一区二区三| 麻豆精品国产91久久久久久| 欧洲美女免费图片一区| а中文在线天堂| 美女网站一区二区| 激情伦成人综合小说| 一区二区三区性视频| 国产亚洲综合av| 六月婷婷激情综合| free性欧美| 91精品国产色综合久久 | 2021狠狠干| 丝袜诱惑一区二区| 亚洲精品久久久久国产| 99视频只有精品| 美女视频黄a大片欧美| 欧美日韩一区二区三区在线视频| 国产高清在线看| 日本精品免费观看高清观看| 久久久久亚洲AV成人网人人小说| 久久男人av| 午夜免费日韩视频| 天天操天天操天天干| 综合自拍亚洲综合图不卡区| 欧美视频第三页| 精品国产伦一区二区三区观看说明| 日韩av在线天堂网| 一级特黄免费视频| 26uuu亚洲综合色| 9l视频白拍9色9l视频| 精品国产乱码久久久久久果冻传媒| 久久久亚洲国产| 白白色在线发布| 亚洲国产视频直播| 中日韩精品一区二区三区 | www.久久东京| 国产精品午夜视频| 午夜视频在线观看免费视频| 91精品国产91久久久久久最新毛片| www色com| 精品一区二区三区蜜桃| 黄色一级视频片| 精品久久久久久久久久久下田 | 97热精品视频官网| 国产福利免费在线观看| 欧美成人精品福利| 国产色片在线观看| 福利精品视频在线| 久草成人在线视频| 国产日韩精品久久久| 天天插天天射天天干| 精品一区中文字幕| 午夜视频在线网站| 欧美亚洲视频| jizzjizzxxxx| 影音国产精品| 男人天堂999| 99视频在线精品国自产拍免费观看| eeuss中文| 在线一区电影| 精品人妻人人做人人爽| 99精品在线观看| 亚洲国产精品女人| 欧美成人精品一区二区三区在线看| 欧美午夜免费| 一级片一区二区三区| 天堂中文在线资源| 中文字幕色av一区二区三区| 好吊色视频一区二区三区| 国产视频一区二区在线| 亚洲少妇18p| 日本不卡一区二区三区| 日韩a级在线观看| 国产精品一区二区三区av麻| 国产精品爽黄69| av毛片在线| 久久久国产在线视频| 传媒在线观看| 精品国偷自产国产一区| 国产av无码专区亚洲a∨毛片| 色综合天天在线| 99草在线视频| 亚洲第一页在线| av电影在线观看| 欧美国产欧美亚洲国产日韩mv天天看完整 | 午夜精品影院在线观看| 亚洲不卡视频在线观看| 制服丝袜激情欧洲亚洲| 天天摸夜夜添狠狠添婷婷| 日韩视频欧美视频| www欧美xxxx| 国产精品人成电影在线观看| 日本在线中文字幕一区二区三区| 亚洲精品日韩精品| 99久久综合狠狠综合久久| 精品无码免费视频| 欧美精品日韩精品| 在线观看av的网站| 国产欧洲精品视频| 欧美韩日高清| 亚洲一二三av| 亚洲激情综合网| 五月婷中文字幕| 青草青草久热精品视频在线网站| 亚洲五码在线| 亚洲少妇久久久| 国产精品久久毛片| 国产又大又长又粗| 另类专区欧美制服同性| caoporn成人免费视频在线| 97国产在线播放| 最近日韩中文字幕| 永久免费av在线| 欧美日韩一区在线观看视频| 国模娜娜一区二区三区| 中文字幕精品无码一区二区| 欧美黑人国产人伦爽爽爽| 日韩1区2区| 亚洲成人生活片| 欧美精品午夜视频| 婷婷综合在线| 6080午夜伦理| 欧美一级bbbbb性bbbb喷潮片| 亚洲成av人片乱码色午夜| 国产精品免费无码| 亚洲欧美日韩中文在线| 国产成人一区| 久久中文字幕在线观看| 亚洲天堂久久av| 欧美freesex8一10精品| 97超碰在线免费观看| 亚洲国产精品va在线| 国产欧美88| 日本在线播放一区二区| 欧美揉bbbbb揉bbbbb| 在线天堂资源www在线污| 亚洲人成色77777| 欧美亚洲国产一区在线观看网站| 97蜜桃久久| 日韩中文字幕a| 日韩一区二区免费在线观看| 日本亚洲欧洲无免费码在线| 欧美xxxxx少妇| 一区二区国产精品视频| 婷婷综合伊人| 草莓视频18免费观看| 国产女精品视频网站免费| 韩国欧美国产一区| 欧美女优在线| 国产精品久久久久久久乖乖| 日本韩国视频一区二区| 日本在线一区二区| 少妇无套高潮一二三区| 久久国产一区二区三区| 校园春色综合网| 三级在线观看网站| 一区中文字幕在线观看| 在线免费观看日韩欧美| 国产成人精品福利| 日韩精品成人一区| 国产精品国色综合久久| 亚洲欧美国产三级| 欧美与亚洲与日本直播| 萌白酱视频在线| 88国产精品欧美一区二区三区| 免费高清在线一区| 国产一二三区在线| 国内国产精品天干天干| 久久精品视频中文字幕| 国产一区二三区| 久草中文在线| 成人在线视频免费播放| 日韩在线观看av| 精品亚洲欧美一区| 午夜视频在线| 老牛影视av老牛影视av| 国产精品欧美日韩| 亚洲欧美国产毛片在线| www.亚洲一二| 最近中文字幕在线观看| 韩国无码av片在线观看网站| 亚洲成人网久久久| 秋霞午夜av一区二区三区| 91三级在线| 欧美第一页在线观看| 精品伦理一区二区三区| 欧洲亚洲精品在线| 一区二区自拍| 麻豆影院在线| 神马午夜精品91| 日本在线视频不卡| 亚洲丁香婷深爱综合| 国产主播一区二区三区| 91精品国产66| 国产成人精品毛片| 中文av一区二区三区| 国产精品视频自在线| 色欧美乱欧美15图片| 欧美一级一区| 成人动漫一区| 中文 欧美 日韩| 在线观看免费的av| 亚洲最大av在线| 精品国产乱码久久久久久久| 国产福利一区在线| 亚洲日本视频在线| 一级毛片在线| 天堂网avav| 夜夜添无码一区二区三区| 97视频在线观看免费高清完整版在线观看| 亚洲啪啪综合av一区二区三区| 一区二区影视| 激情黄产视频在线免费观看| 国产毛片一区二区三区va在线| 亚洲精品鲁一鲁一区二区三区| 国产精品一区视频| 亚洲精品国产电影| 亚洲手机成人高清视频| 亚洲综合精品| 2023国产精华国产精品| 蜜桃视频在线观看视频| 日韩欧美国产亚洲| 亚洲精品久久久久久| 日本一区免费在线观看| 欧美黄色片视频| 在线免费观看视频一区| 91视频.com| 伊人成人在线视频| 免费福利视频一区| 四虎影院观看视频在线观看| 亚洲图片欧美在线| 国产三级精品三级观看| 亚洲精品视频导航| 日韩av高清| 国产精品国产福利国产秒拍| 亚洲男人天堂九九视频| 色综合久久久久网| 中文字幕+乱码+中文字幕一区| 久久人人精品| 小小影院久久| 成人av地址| 国产一区二区三区影视| 2021av在线| 狠狠干在线视频| 88av在线视频| 久久视频免费在线观看| 中文幕无线码中文字蜜桃| www.日日操| 成人在线免费观看网址| 国产精品久久久久久久天堂第1集 国产精品久久久久久久免费大片 国产精品久久久久久久久婷婷 | 日韩精品永久网址| 久久久久久久久成人| 国产伦子伦对白在线播放观看| 欧美男男同志| 在线观看黄色| 国产成人手机在线| 乱子伦一区二区三区| 日韩精品手机在线| 日本a级片视频| 波多野结衣欲乱| 无码人妻精品一区二区三应用大全 | 午夜亚洲视频| 亚洲精品美女91| 一区二区三区四区电影| 国产精品探花在线观看| 欧美偷窥清纯综合图区| 国产精品久久久网站| 亚洲大奶少妇| www国产精品| 最近国产精品视频| 日本一区二区高清不卡| 日韩理论电影院| 午夜视频一区| 韩日精品视频| 久久一二三四| 久久精品国产色蜜蜜麻豆| 麻豆精品91| 精品一区二区三区在线视频| 国产在线观看一区二区| 国产成人在线视频播放| 91蜜桃传媒精品久久久一区二区| 久久尤物电影视频在线观看| 国产日产亚洲精品系列| 国产精品久久久久久久久图文区 | 久久久久久久av| 日韩免费在线看| 亚洲free嫩bbb| 欧美福利精品| 奇米777四色影视在线看| 黄色片一级视频| 亚洲乱妇老熟女爽到高潮的片| 少妇精品一区二区三区| 久久精品国产亚洲av麻豆色欲| 成人a v视频| 宅男午夜在线| 欧美精品videossex少妇| 99热这里有精品| 久久久综合色| 国产真实乱子伦精品视频| 久久久久国产一区二区三区四区| 亚洲一区二区在线视频| 欧美日韩免费不卡视频一区二区三区| 亚洲第一精品自拍| 欧美亚洲在线播放| 欧美人与性禽动交精品| 日本精品一区在线观看| 国产精久久一区二区三区| 久久国产精品二区| 天天综合网在线| 日韩影院在线| 久久精品国产亚洲夜色av网站| 久久99精品一区二区三区三区| 国产精品国产三级国产aⅴ原创 | 日韩亚洲欧美在线观看| 欧美精品第一页在线播放| 精选一区二区三区四区五区| 粉嫩虎白女毛片人体| 天天天天天天天天操| 在线成人动漫| 欧美在线se| 久久不射2019中文字幕| 亚洲丝袜美腿综合| 亚洲午夜av久久乱码| 91影院在线免费观看视频| 国产偷人视频免费| 国产69精品久久久久久久久久| 性xxxx丰满孕妇xxxx另类| 精品一区二区三区中文字幕在线 | japanese国产|