精品一区二区免费在线观看_国产精品久久久久久av福利软件_97成人精品区在线播放_国内成人精品一区



Junior school students in Harbin，Heilongjiang，had a "long weekend"．They had four days off from Oct．19-22．It was not for any festival，but was caused by serious smog．
The smog was caused by high levels of PM 2．5 in the air．
PM 2．5 is small particles（微粒） of pollution in the air with a diameter （直徑） of 2．5 micrometers or less．Waste gas from cars and factories is the biggest cause of PM 2．5 pollution． On Oct．17，the World Health Organization named air pollution a cause of cancer．
To better protect children，cities are taking action．
On Oct．21，Harbin Education Bureau decided to close primary and junior high schools for two days．
Beijing started a program on Oct．22 which has a warning system with four levels．The red warning is the highest warning level．It means that the next three days will see serious pollution．
When a red warning is issued（發(fā)布），schools will close．
If there's pollution that's not as serious，the Beijing Commission of Education will ask schools to stop PE classes and outdoor activities．
How will students be informed?
"First，the Commission of Education will inform schools online，" Ye Yan，head of Beijing Shijingshanqu Experimental Primary School，told Beijing Times．"Then teachers will text students’ parents．"
Will the days off affect the study plan?
"Missing school days will be made up during the summer or winter vacations，"  said Wang Hao，a physical education teacher in Beijing Chaoyang district．
For students in Harbin who had the long weekend，they would go to school on the next two Saturdays．
根據(jù)材料內(nèi)容選出最佳選項(xiàng)，并在答題卡上將該項(xiàng)涂黑。
小題1:Why did students in Harbin have a long weekend?
A．Because the weather was extremely cold．
B．Because a special festival came．
C．Because the winter vacation began．
D．Because there happened serious smog．
小題2:Which of the following is TRUE about PM 2．5?
A．It makes water polluted．
B．People can see it with eyes．
C．It only comes from factories．
D．It can cause serious diseases．
小題3:When a red warning is issued in Beijing，what will happen?
A．All of the work will be stopped．
B．People aren't allowed to go outside．
C．Schools will be closed for a few days．
D．Air pollution will be seen in a few weeks．
小題4:What does the underlined word "text" mean in Chinese?
A．寫信B．發(fā)信息C．寫文章D．發(fā)郵件
小題5:What is the reading mainly about?
A．What PM 2．5 is made up of．
B．How people fight against air pollution．
C．What influence the smog brings to school．
D．How schools deal with the missing school days．

小題1:D
小題2:D
小題3:C
小題4:B
小題5:C

試題分析: 本文講述是某地的學(xué)生度過一個(gè)很長(zhǎng)的周末，其實(shí)是受霧霾的影響，一旦發(fā)布紅色預(yù)警，學(xué)校就應(yīng)停課，及采樣應(yīng)采取的措施。
小題1:D 細(xì)節(jié)理解題。根據(jù)第一段提到It was not for any festival，but was caused by serious smog．不是因?yàn)楣?jié)日而是由嚴(yán)重的霧導(dǎo)致的，故選D項(xiàng)。
小題2:D 細(xì)節(jié)理解題。根據(jù)第三段提到Waste gas from cars and factories is the biggest cause of PM 2．5 pollution． On Oct．17，the World Health Organization named air pollution a cause of cancer這種廢氣來自汽車，工廠，世界衛(wèi)生組織宣布這種空氣污染是致癌的原因，故選D項(xiàng)。
小題3:C 細(xì)節(jié)理解題。根據(jù)第第七段提到When a red warning is issued（發(fā)布），schools will close當(dāng)紅色預(yù)警時(shí)，學(xué)校應(yīng)該關(guān)閉。故選C項(xiàng)。
小題4:B 細(xì)節(jié)推斷題。根據(jù)第十段提到First，the Commission of Education will inform schools online，" Ye Yan，head of Beijing Shijingshanqu Experimental Primary School，told Beijing Times．"Then teachers will text students’ parents．首先教育部會(huì)網(wǎng)上通知學(xué)校，老師再通過短信通知學(xué)生家長(zhǎng)，故選B項(xiàng)。
小題5:C 主旨大意。文中第一句話提到Junior school students in Harbin，Heilongjiang，had a "long weekend"初中的學(xué)生有了一個(gè)很長(zhǎng)的假期，提到霧霾的影響，根據(jù)第四段提到To better protect children，cities are taking action為了更好的保護(hù)學(xué)生，各個(gè)城市應(yīng)采取措施，故可知這是說霧霾對(duì)學(xué)校的影響，故選C項(xiàng)。
練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目：初中英語 來源：不詳 題型：閱讀理解

In 1926, a Frenchman named Niepce needed pictures for his business. But he was not a good artist. So he invented a very simple camera. He put it in a window of his house and took a picture of his garden. That was the first photo. The next important date in the history of photography was in 1837. That year, Daguerre, another Frenchman, took a picture of his reading room. He used a new kind of camera in a different way. In his picture you could see everything clearly, even the smallest thing. This kind of photo was called a Daguerreotype(銀版照相). Soon other people began to use Daguerre’s way. Travelers brought back wonderful photos from all around the world. People took pictures of famous buildings, cities and mountains. In about 1840, photography was developed. Then photographers could take picture of people and moving things. That was not simple. The photographers had to carry a lot of film and other machines. But this did not stop them, for example, some in the US worked so hard. Mathew Brady was a famous American photographer. He took many pictures of great people. The pictures were unusual because they were very lifelike(栩栩如生的). Photography also became one kind of art by the end of the 19th century. Some photos were not just copies of the real world. They showed feelings, like other kinds of art.
小題1:The first photo taken by Niepce was a picture of _______.
A．his business B．his houseC．his gardenD．his window
小題2:The Daguerreotype was _______.
A．a(chǎn) FrenchmanB．a(chǎn) kind of picture
C．a(chǎn) kind of cameraD．a(chǎn) photographer
小題3:If a photographer wanted to take pictures of moving things in the year of 1840s, he had to ________.
A．watch lots of films
B．buy an expensive camera
C．stop in most cities
D．take many films and something else with him
小題4:Mathew Brady________.
A．was very lifelikeB．was famous for his unusual pictures
C．was quite strongD．took many pictures of moving people
小題5:This passage tells us ________.
A．how photography was developed
B．how to show your ideas and feelings in pictures
C．how to take pictures in the world
D．how to use different cameras

查看答案和解析>>

科目：初中英語 來源：不詳 題型：閱讀理解

閱讀短文，按要求完成短文后的各項(xiàng)任務(wù)
In the past, man did not have to think about the protection of the environment. There were few people on the earth, and natural resources(資源) seemed to be unlimited(無限的) .
Today things are different, the world has become too crowded. We are using up our natural resources too quickly and at the same time we are polluting our environment with dangerous chemicals (化學(xué)制品). If we continue to do this, human life on the ①_______ will ②_______ survive.
Everyone realizes today that if too many fish are taken from rivers and the sea, there will soon be none left. Yet, with modern fishing methods(方法) , more and more fish are caught. We know that if too many trees are cut down, forests will disappear and nothing will grow on the earth. Yet we continue to use bigger and more powerful machines to cut down more and more trees.
We realize that if rivers are polluted with waste products from factories, fish will die. However, in most countries wastes are still put into rivers or the sea, and there are few laws to prevent this. Also, weknow that if the population of the world is becoming larger and larger, in a few years there will not be enough food. What can we do to solve these problems?
If we eat more vegetables and less meat, there will be more food available for everyone.
③Our natural resources will last longer if we learn to recycle(循環(huán)再用)them. The world population will not rise so quickly if people use modern methods of birth control.
Finally, if we educate people to think about the problems, we shall have a better and cleaner planet in the future. In a word, it is very important to protect our environment.
小題1:在①、②空白處分別填入一個(gè)適當(dāng)?shù)脑~使句意完整、上下文通順。
_____________  ______________
小題2:把③句譯成中文。
__________________________________________________            _____
小題3:回答問題: How can we protect fish?
____________________________________________________________________
小題4:在文中找出與There are more and more people in the world.意思相近的句子。
_____________________________________________________________      
小題5:在文中找出最能表達(dá)該短文主題的句子，并將它寫在答題卡上。
__________________________________________________________________ 

查看答案和解析>>

科目：初中英語 來源：不詳 題型：閱讀理解

Have you seen Avatar? It’s a popular 3D movie, and you may have to wear a special pair of glasses – 3D glasses, to see it. The 3D glasses make the images from the movie look as if they are coming straight at you.
3D movies are really exciting to watch. More and more 3D movies are coming to theaters. Some say that 3D TV sets will come into our homes in the near future. 3D technology can make TV and movies more exciting. However, people with eye problems may get headaches if they spend too much time watching 3D movies. Why?
When we look at an object, each eye sees it at a different angle (角度). Our eyes send the two images to our brain, and the brain puts them together. 3D technology uses two film projectors (投影機(jī))。 One projects left-eye-image and the other projects a right-eye-image. 3D glasses allow us to see a different image in each eye. So, when we are watching a 3D movie, our brain can’t put together the images sent to our eyes. The brain needs to work harder at “reading” the images. That makes it easier for people with eye problems to get dizzy (頭暈的) or have headaches.
Dr John Hagan, an eye doctor in Kansas City, said if your eyes can’t focus on the same object at once, you will have trouble watching 3D movies.
小題1:What is Avatar?
A．It’s a kind of 3D projector.B．It’s a kind of 3D TV set.
C．It’s a movie.D．It’s an animal.
小題2:The 3D glasses can make the images from the movie           。
A．look more beautiful than usual
B．look as if they are coming straight at you
C．look as if they are far away from you
D．look more strange than usual
小題3:According to the story, people will have         in their homes in the near future.
A．3D computers
B．3D projectors
C．3D phones
D．3D TV sets
小題4:When we look at an object,         .
A．each eye sees the object at the same angle
B．each eye sees a different object at the same time
C．our brain puts the two different pictures together
D．there will be two film projectors in our eyes
小題5:If you wear a pair of 3D glasses,          .
A．you will see different images in both eyes
B．you will see the same images in both eyes
C．your brain can’t work at all
D．the images can be put together easily by your brain

查看答案和解析>>

科目：初中英語 來源：不詳 題型：閱讀理解

Fear may be felt in the heart as well as in the head, according to a study that has found a link between the cycles of a beating heart and the chance of someone feeling fear.
Tests on healthy volunteers found that they were more likely to feel a sense of fear at the moment when their hearts are contracting(收縮) and pumping（向---送出） blood around their bodies, compared with the point when the heartbeat is relaxed. Scientists say the results suggest that the heart is able to influence how the brain responds to a fearful event, depending on which point it is at in its regular cycle of contraction and relaxation.
Sarah Garfinkel at the Brighton and Sussex Medical School said: "Our study shows for the first time that the way in which we deal with fear is different depending on when we see fearful pictures in relation to our heart."
The study tested 20 healthy volunteers on their reactions to fear as they were shown pictures of fearful faces. Dr Garfinkel said, "The study showed that fearful faces are better noticed when the heart is pumping than when it is relaxed. So our hearts can also affect what we see and what we don't see - and guide whether we see fear."
To further understand this relationship, the scientists also used a brain scanner(掃描儀) to show how the brain influences the way the heart changes a person's feeling of fear. "We have found an important mechanism by which the heart and brain ‘speak’ to each other to change our feelings and reduce fear," Dr Garfinkel said.
"We hope that by increasing our understanding about how fear is dealt with and ways that it could be reduced, we may be able to develop more successful treatments for anxiety disorders, and also for those for those who may be suffering from serious stress disorder."
小題1:What is the finding of the study?
A．fear has something to do with one's health.
B．fear is a result of one's relaxed heartbeat.
C．One's heart affects how he feels fear.
D．One’s fast heartbeats are likely to cause fear.
小題2:When are people more likely to feel a sense of fear ?
A．When the heartbeat is relaxed.
B．When their hearts are contracting.
C．When people are tired.
D．When people are happy.
小題3:The study was carried out by analyzing （分析）_______.
A．the time volunteers saw fearful pictures and their health conditions
B．volunteers' heartbeats when they saw terrible pictures
C．volunteers' reactions to horrible pictures and data form their brain scans
D．different pictures shown to volunteers and their heart-brain communication
小題4:Which of the following is closest in meaning to "mechanism" in Paragraph 6?
A．Order.B．Machine.C．Treatment.D．System.
小題5:This study may be useful to _______.
A．treating anxiety and stress better
B．explaining the cycle of fear and anxiety
C．finding the sky to the heart-brain communication
D．understanding different fears in our hearts and heads

查看答案和解析>>

科目：初中英語 來源：不詳 題型：閱讀理解

Do you get enough sleep? With so much homework it's often difficult to get the rest you need. But you need to try， because sleep keeps you healthy and it stops you getting fat.
Recently， a group of US scientists did a study (調(diào)查) of kids aged between 8 and 13. The study found that if kids sleep for just one extra (額外的) hour each day, the chance of their getting fat is cut by about 30 percent .
Why? When people don't get enough sleep, they become tired. When they are tired, they don't exercise enough. Also， kids like snacks: If they are awake (醒著的) an extra hour or two each day，they have more time to eat snacks or other unhealthy foods.
So， how much sleep should you get? Scientists suggest 10 to 11 hours a night for kids aged 5 to 12. For older kids, eight to nine hours will do.
小題1:How many reasons are given why people might get fat without enough sleep?
A．3. B．2. C．1 D．None.
小題2:If you are under 10， how long do the scientists advice you to sleep?
A．10 to 11 hours. B．8 to 9 hours. C．8 to 13 hours.D．As long as possible.
小題3:Where was the study done by the scientists?
A. In China.        B In Britain.        C. In America.        D. In Japan.
小題4:What does" eight to nine hours will do" mean?
A. Eight to nine hours' sleep will be good and enough.      
B Eight to nine hours' sleep will be too long.
C. Eight to nine hours' sleep will help get fat.
D. Eight to nine hours' sleep will help eat snacks and unhealthy foods.
小題5:What does the passage talk about?
A. How to get long sleep. 
B How to keep fat.
C. Enough sleep makes people healthy and slim (苗條)   
D. Long sleep makes people healthy and slim.

查看答案和解析>>

科目：初中英語 來源：不詳 題型：閱讀理解

任務(wù)型閱讀。維生素對(duì)人體很重要，大家了解他們嗎？請(qǐng)仔細(xì)閱讀第56-60題中的五種維生素的介紹和A至F材料說明，找出需要補(bǔ)充的維生素的每個(gè)人。

小題1:Vitamin A
What can high-vitamin A foods do for you?
be great for night vision
help you see in color
help your grow properly and aids in healthy skin
﹡ vitamin A in carrots helps you see at night

小題2:The B vitamins
What can the B vitamin do for you?
help make energy and set it free
help make red blood cells which carry oxygen(氧氣) throughout your body
﹡ The B vitamins in leafy green vegetables help your body make protein(蛋白質(zhì))and energy.

小題3:Vitamin C
What can vitamin C do for you?
keep body tissues(組織) in good shape
help you heal when you get hurt
help your body resist infection
﹡ Vitamin C in oranges helps your body heal if you get a cut

小題4:Vitamin D
What can vitamin D do for you?
help keep your bones strong and healthy
help keep your teeth strong and healthy
help your body absorb the amount of calcium(鈣)
﹡ Vitamin D in milk helps your bones and teeth.

小題5:Vitamin E
What can vitamin E do for you?
protect your skin from ultraviolet(紫外線) light
protect you lungs from becoming damaged by polluted air
help make red blood cells
﹡ Sunflowers seeds are the richest in Vitamin E
A．Emily often feels tired and seems to be lack of energy.
B．Jeff spent his summer vacation on the beach and got serious sunburnt.
C．Kate has poor eyesight and she can’t see clearly at night.
D．Tony sometimes feels pains in his bones and he has loose teeth.
E. Luke is so careless that he often gets hurt. And it takes a long time for his wound to heal.
F. Linda feels nervous before the new people.

查看答案和解析>>

科目：初中英語 來源：不詳 題型：閱讀理解


  星期
時(shí)間
Monday
Tuesday
Wednesday
Thursday
Friday
9:00a.m.
Math
 
Math
 
English
10:30a.m.
Chemistry
History
chemistry
 
chemistry
11:15a.m.
 
 
 
 
History
1:45p.m.
physics
 
physics
 
physics
3:00p.m.
 
English
 
math
 
小題1:What lesson do they have at 1:45 p.m. on Wednesday?
A．PhysicsB．ChemistryC．HistoryD．Math
小題2:Do they have lessons at 10:30 a.m. on Thursday?
A．Yes, they doB．No, they don’t
C．We can’t know from the table(表).D．None of the above.
小題3:On Friday, a physics lesson begins at  _______.
A．9:10 a.m.B．10:30 a.m.C．1:45 p.m.D．3:00 p.m.
小題4:When do they have an English lesson?
A．Only on TuesdayB．Only on Friday
C．On Tuesday and FridayD．Every day
小題5:How many kinds of lessons do they have in a week?
A．3B．4C．5D．6

查看答案和解析>>

科目：初中英語 來源：不詳 題型：閱讀理解

No one knows how man learned to make words. Perhaps he began by making sounds like those made by animals. Perhaps he grunted like a pig when he lifted something heavy. Perhaps he made sounds like those he heard all round him—water splashing, bees humming, a stone falling to the ground. Somehow he learned to make words. As the centuries went by, he made more and more new words. This is what we mean by language.
People living in different countries made different kinds of words. Today there are about fifteen hundred different languages in the world. Each containsfour or five hundred thousand words. But we do not need all these. Only a few thousand words are used in everyday life. The words you know are called your vocabulary. You should try to make your vocabulary larger. Read as many books as you can. There are plenty of books written in easy language. Your dictionary is your most useful book.
小題1: What do we mean by language?
A．Sounds made by man.
B．All the words made by man.
C．Different kinds of sound.
D．The way man learns.
小題2: Form the passage we know that long long ago________.
A．no one learned how to make sounds or words
B．a(chǎn)nimals taught man to learn the language
C．man learned the language by lifting heavy things, falling to the ground,and so on
D．man followed a lot of things in nature to make sounds and words
小題3: What is the number of languages spoken in the world today?
A．500. B．5,000.C．1,500.D．15,000.
小題4:In which sentence can the word "contain(s)" be put so that it is a right one?
A．I________ several dictionaries.B．Sea water________ salt.
C．A dog _______ four legs.D．Mr. Smith _____ glasses on his nose.
小題5: Which of the followings is the best if we want to make our vocabulary larger?
A．To read more books.
B．To use the words in everyday life.
C．To use the words in class.
D．To write the words.

查看答案和解析>>

同步練習(xí)冊(cè)答案
精品一区二区免费在线观看_国产精品久久久久久av福利软件_97成人精品区在线播放_国内成人精品一区
中文字幕国产一区| 亚洲欧美色图小说| 国产**成人网毛片九色| 成人av免费在线观看| 中文字幕亚洲区| 91国偷自产一区二区开放时间 | 国产成人精品在线看| 国产欧美一区二区精品性色超碰| 国产**成人网毛片九色| 国产精品理论在线观看| 色婷婷亚洲综合| 亚洲超丰满肉感bbw| 欧美大胆一级视频| 国产风韵犹存在线视精品| 国产精品丝袜在线| 免费av成人在线| 精品久久久三级丝袜| 国产不卡在线一区| 亚洲精品欧美综合四区| 欧美日韩的一区二区| 麻豆高清免费国产一区| 国产亚洲成年网址在线观看| 91网址在线看| 五月天丁香久久| 久久久99久久| 视频一区二区不卡| 久久综合狠狠综合久久激情 | 欧美国产丝袜视频| 色婷婷综合五月| 日韩福利电影在线| 欧美激情综合五月色丁香小说| 91亚洲男人天堂| 日韩精品亚洲专区| 中文欧美字幕免费| 欧美猛男男办公室激情| 国产最新精品精品你懂的| 亚洲视频图片小说| 日韩一级二级三级| www.99精品| 免费观看在线综合| 国产精品久久久久久久久动漫| 欧美三片在线视频观看| 国产一区二区在线观看免费 | 亚洲美腿欧美偷拍| 日韩欧美一级二级| 91在线国产福利| 蜜臀久久99精品久久久久宅男| 国产精品伦理在线| 91精品国产一区二区三区蜜臀| 成人免费视频网站在线观看| 午夜视黄欧洲亚洲| 国产欧美日韩亚州综合| 欧美日韩国产精品成人| 丁香亚洲综合激情啪啪综合| 亚洲va天堂va国产va久| 国产精品网曝门| 日韩欧美国产午夜精品| 色婷婷综合久久久中文字幕| 久久99国产精品尤物| 亚洲综合久久av| 国产午夜精品一区二区三区视频| 欧美日韩国产三级| 成人激情av网| 久久国内精品自在自线400部| 一区二区三区欧美| 国产欧美视频在线观看| 日韩欧美精品三级| 欧洲激情一区二区| 亚洲精品成人精品456| 久久久久久97三级| 欧美一区二区视频免费观看| 99久久国产综合色|国产精品| 国产精品美女久久久久aⅴ国产馆| 制服丝袜国产精品| 色诱视频网站一区| 东方欧美亚洲色图在线| 激情综合色播激情啊| 午夜精品成人在线视频| 一区二区三区中文免费| 欧美高清一级片在线观看| 欧美电影免费观看完整版 | 欧美中文字幕久久| av成人老司机| 国产精品一区二区三区四区| 奇米色777欧美一区二区| 一区二区三区欧美视频| 《视频一区视频二区| 欧美国产禁国产网站cc| 欧美精品一区二区三区高清aⅴ| 欧美日韩视频第一区| 日本电影亚洲天堂一区| 99国产精品一区| 高清国产一区二区| 国产高清精品在线| 黑人巨大精品欧美一区| 欧美bbbbb| 污片在线观看一区二区| 亚洲国产中文字幕在线视频综合| 亚洲欧洲精品天堂一级| 国产精品理论在线观看| 中文字幕的久久| 国产欧美日韩在线观看| 国产日韩欧美不卡| 国产亚洲精品久| 国产日韩欧美制服另类| 久久精品视频一区二区三区| 亚洲精品在线观| 久久综合成人精品亚洲另类欧美| 精品黑人一区二区三区久久| 日韩精品一区二区三区中文精品| 91精品国产入口在线| 91精品蜜臀在线一区尤物| 欧美伦理电影网| 欧美精品在欧美一区二区少妇| 欧美日韩在线观看一区二区| 欧美日韩一区中文字幕| 欧美三级中文字幕| 欧美日韩第一区日日骚| 91精品婷婷国产综合久久| 欧美精品123区| 日韩一区二区在线观看视频| 777精品伊人久久久久大香线蕉| 91精品午夜视频| 欧美v国产在线一区二区三区| 精品久久久久久久久久久久包黑料| 日韩女优av电影| 久久在线观看免费| 国产日韩欧美电影| 亚洲欧洲av色图| 亚洲综合免费观看高清完整版在线| 亚洲午夜激情网站| 日韩在线a电影| 麻豆精品新av中文字幕| 韩国午夜理伦三级不卡影院| 韩国中文字幕2020精品| 丰满亚洲少妇av| 色综合网站在线| 欧美图片一区二区三区| 91精品中文字幕一区二区三区| 欧美成人精品1314www| 国产偷国产偷亚洲高清人白洁| 国产精品免费网站在线观看| 亚洲色图欧洲色图| 亚洲成人av在线电影| 麻豆91在线看| 国产精品亚洲综合一区在线观看| av激情成人网| 欧美三级电影网站| 日韩欧美国产麻豆| 国产精品三级视频| 欧美一卡2卡3卡4卡| 久久久91精品国产一区二区三区| 中文字幕亚洲精品在线观看| 午夜精品久久久久久久| 精品一区二区成人精品| 亚洲美女淫视频| 日本不卡的三区四区五区| 麻豆精品视频在线| av电影天堂一区二区在线观看| 成人动漫视频在线| 欧美日韩一区二区三区高清| 日韩欧美一区中文| 欧美国产精品一区二区| 夜夜嗨av一区二区三区中文字幕| 日韩精品电影在线| 成人免费高清在线| 欧美日韩在线三级| 国产日本欧洲亚洲| 性做久久久久久久免费看| 国内精品久久久久影院薰衣草| 成人av电影在线网| 91精品国产综合久久久久久 | 日韩欧美一卡二卡| 国产精品免费视频观看| 亚洲综合色视频| 国产做a爰片久久毛片| 在线视频你懂得一区| 久久奇米777| 亚洲日本一区二区| 青青国产91久久久久久| 99久久99久久精品免费看蜜桃| 欧美一区二区啪啪| 亚洲欧美国产77777| 麻豆成人91精品二区三区| 色综合久久88色综合天天6| 日韩欧美亚洲另类制服综合在线| 欧美精品亚洲一区二区在线播放| 国产清纯美女被跳蛋高潮一区二区久久w | 欧美一级在线观看| 国产精品人成在线观看免费| 亚洲成av人片一区二区梦乃| 亚洲综合一区二区| 国产精品自在在线| 欧美麻豆精品久久久久久| 国产精品久久久久一区| 看电影不卡的网站| 在线观看区一区二| 国产精品欧美一级免费| 久久国产免费看| 91黄色激情网站|