八年級(jí)下冊(cè)英語(yǔ)教案

    時(shí)間:2022-12-15 17:36:33 英語(yǔ)教案 我要投稿

    八年級(jí)下冊(cè)英語(yǔ)教案(4篇)

      在教學(xué)工作者開(kāi)展教學(xué)活動(dòng)前,通常需要準(zhǔn)備好一份教案,借助教案可以更好地組織教學(xué)活動(dòng)。那么你有了解過(guò)教案嗎?以下是小編收集整理的八年級(jí)下冊(cè)英語(yǔ)教案,歡迎閱讀,希望大家能夠喜歡。

    八年級(jí)下冊(cè)英語(yǔ)教案(4篇)

    八年級(jí)下冊(cè)英語(yǔ)教案1

      一、教學(xué)內(nèi)容:Unit1Ihaven’tdonemuchexercisesinceIgotmycomputer.

      二、課型:Listeningandspeaking

      三、教學(xué)目標(biāo):

      1、能夠正確使用下列單詞和詞組:cough,fever,headache,stomach,ache,stomachache,toothache,ill,this,since,cold,catchacold,takesb.’stemperature,fastfood,health,take2、能使用現(xiàn)在完成時(shí)與for和since引導(dǎo)的時(shí)間狀語(yǔ)連用的結(jié)構(gòu)。

      3、能夠聽(tīng)懂聽(tīng)懂疾病及癥狀的描述和關(guān)于健康生活習(xí)慣的表述并獲取相關(guān)信息。4、能夠與同學(xué)合作完成醫(yī)患間的角色扮演和對(duì)話。

      四、教學(xué)重難點(diǎn):

      1、能使用現(xiàn)在完成時(shí)與for和since引導(dǎo)的時(shí)間狀語(yǔ)連用的結(jié)構(gòu)。

      2、能夠與同學(xué)合作完成醫(yī)患間的角色扮演和對(duì)話。(難點(diǎn))

      五、教學(xué)準(zhǔn)備:

      課堂整體運(yùn)用任務(wù)型教學(xué)模式,培養(yǎng)學(xué)生獨(dú)立自主的學(xué)習(xí)能力。本課指導(dǎo)學(xué)生通過(guò)聽(tīng)說(shuō)獲取信息,培養(yǎng)學(xué)生的聽(tīng)說(shuō)技能。在教學(xué)過(guò)程中,采用多媒體手段輔助教學(xué),利用各種圖片和習(xí)題任務(wù)貫穿整個(gè)教學(xué)過(guò)程。因此,本節(jié)課需準(zhǔn)備:PPT課件、掛圖、課堂練習(xí)表格、獎(jiǎng)品

    八年級(jí)下冊(cè)英語(yǔ)教案2

      一、課題:

      《PEP小學(xué)英語(yǔ)》五年級(jí)下冊(cè)Unit 6 A field trip(B Let's learn Let's play)。

      二、課題說(shuō)明:

      本課的教學(xué)內(nèi)容是有關(guān)戶外各項(xiàng)活動(dòng)的單詞教學(xué),這與學(xué)生日常生活密切聯(lián)系著,容易為學(xué)生所理解和接受。且這些活動(dòng)是學(xué)生們所樂(lè)意參加的,教學(xué)時(shí)可充分抓住這一特點(diǎn)來(lái)安排教學(xué)內(nèi)容使課堂氣氛活躍一些。教學(xué)重點(diǎn)是掌握5種活動(dòng)詞匯的正確讀音。

      三、課時(shí)說(shuō)明:

      本案例是小學(xué)五年級(jí)下冊(cè)第六單元的第四課時(shí),學(xué)生在前面已學(xué)過(guò)drinking water等活動(dòng)的詞匯和What is/are …doing?They are 。.。 He/She is 。.。的。句型。因此,這節(jié)課的教學(xué)任務(wù)是如何在學(xué)習(xí)新知識(shí)的基礎(chǔ)上,鞏固、拓展和利用所學(xué)的'舊知識(shí),真正達(dá)到學(xué)以致用、融會(huì)貫通的目的。

      四、學(xué)生情況說(shuō)明:

      通過(guò)前面幾單元的學(xué)習(xí),同學(xué)們對(duì)What g?和人們正在進(jìn)行活動(dòng)的描述He/She is.。. They are.。.已經(jīng)有了較好的掌握,這為本單元的教學(xué)提供了有利的基礎(chǔ)。本單元的教學(xué)內(nèi)容與學(xué)生的實(shí)際生活息息相關(guān),因而本單元的教學(xué)內(nèi)容對(duì)學(xué)生來(lái)說(shuō)不難理解。關(guān)鍵是如何在課堂中將分散的語(yǔ)言點(diǎn)進(jìn)行整合、拓展,使之形成一個(gè)有機(jī)的整體,即把孤立的單詞教學(xué)放置于一定的情景教學(xué)之中,達(dá)到讓學(xué)生在實(shí)際生活中能準(zhǔn)確、靈活地運(yùn)用的目的'。在教學(xué)時(shí),老師要通過(guò)創(chuàng)設(shè)情景,利用多媒體教學(xué)手段,拿出實(shí)物,開(kāi)展靈活多樣的教學(xué)活動(dòng),將新舊知識(shí)有機(jī)結(jié)合,對(duì)本單元知識(shí)加以強(qiáng)化,從而讓學(xué)生更好地掌握和拓展A field trip這一話題。

      Unit 6 A field trip

      B Let's learn Let's play

      第四課時(shí)

      教學(xué)重點(diǎn):

      1、 Let's learn部分的動(dòng)詞短語(yǔ)的ing形式:counting insects,collecting leaves,writing a report,playing chess,having a picnic。

      2、在情景中使用對(duì)話中的句子,并能恰當(dāng)?shù)奶鎿Q句中的動(dòng)詞短語(yǔ)。

      3、聽(tīng)、說(shuō)、讀、寫(xiě)動(dòng)詞短語(yǔ):counting insects,collecting leaves,writing a report,playing chess,having a picnic。

      4、 counting和collecting的正確發(fā)音示范和指導(dǎo)。

      教學(xué)難點(diǎn):

      1、詞匯量較大,有些短語(yǔ)不易掌握:counting和collecting的發(fā)音較難且易混淆。

      2、動(dòng)詞短語(yǔ)的ing形式:強(qiáng)調(diào)writing和having,加ing要去掉字母e,再加ing。

      課前準(zhǔn)備:

      1、教學(xué)過(guò)程中所需的錄音(Let's learn,Let's play)、課件;

      2、實(shí)物:象棋、國(guó)際象棋、樹(shù)葉;

      3、投影儀;

      4、書(shū)寫(xiě)表格(在課前發(fā)給學(xué)生)。

      五、教學(xué)過(guò)程:

      一、Warm up(熱身)

      大家一起唱活動(dòng):唱一唱(教學(xué)參考時(shí)間:2-3分鐘)

      教師播放五年級(jí)下冊(cè)第五單元Let's chant部分歌曲。

      學(xué)生跟錄音演唱歌謠。(Listen and repeat)

      二、Review(復(fù)習(xí))

      1、老師先美美地喝杯子中的一口水,What am I doing?Ss:You're drinking water.

      2、出示課件圖片,請(qǐng)學(xué)生復(fù)習(xí)A Let's learn部分的詞組。

      引導(dǎo)學(xué)生Using the sentences:What is g?He/She is 。.。

      三、Presentation(新課呈現(xiàn))

      活動(dòng)一:學(xué)一學(xué)

      1、教師出示一群人野營(yíng)的圖片,T:What are they doing?S:They are having a picnic.教讀該詞組。

      2、出示國(guó)際象棋,教師問(wèn)學(xué)生:What is this?引導(dǎo)學(xué)生回答“chess”。如果沒(méi)有學(xué)生知道,教師可以領(lǐng)讀chess。出示中國(guó)象棋,教師問(wèn):This is Chinese chess,Can you play chess?引導(dǎo)學(xué)生回答:Yes,I can play chess.或者No,I can't.出示圖片,T:What is Jone doing?S:He is playing chess.使學(xué)生能夠用完整的句子來(lái)回答。

      3、教師拿出一張Report,T:What is this?S:It is a report. T:What is Sarah doing?S:She is writing a report.

      4、出示一片樹(shù)葉,問(wèn)What's this?回答:It's a leaf.拿出一袋樹(shù)葉,問(wèn)What are they?回答:They are leaves.(樹(shù)葉的單復(fù)數(shù)在前面已教過(guò),這是對(duì)所學(xué)內(nèi)容的復(fù)習(xí))然后教師把樹(shù)葉夾在書(shū)本中,T:I am collecting leaves.看課件圖片,T:What is he doing?S:He is collecting leaves.教師帶讀該短語(yǔ),請(qǐng)學(xué)生試著讀出新的單詞短語(yǔ)。

      5、出watching insects的單詞短語(yǔ)和圖片,問(wèn):How many insects can you see?T:Let's count together. There are six insects.教師引導(dǎo)學(xué)生說(shuō)出counting insects教師帶讀單詞。

      6、最后,在四線格上展示五個(gè)動(dòng)詞短語(yǔ)。

      教師引導(dǎo)學(xué)生注意總結(jié):T:Look at the board,can you find something different?

      單詞結(jié)尾是不發(fā)音的字母e的時(shí)候,加ing要把e去掉。

      7、教師播放Let's learn部分的錄音,學(xué)生打開(kāi)課本listen and repeat。

      Students read one by one,老師糾正錯(cuò)誤的發(fā)音。

      活動(dòng)二:小小探究家

      Make a chant

      For example:Chen Jie,Chen Jie,

      What is Chen Jie doing?

      Counting insects,counting insects

      She is counting insects.

      以上例子在課件中展示。

      盡量讓學(xué)生編出更多的chant,并請(qǐng)同學(xué)自編自吟。

      活動(dòng)三:我是小老外(Work in pairs──看圖編對(duì)話)

      請(qǐng)學(xué)生準(zhǔn)備后,上臺(tái)展示。A:What is g?

      B:He/She is 。.。

      B:What is g?

      A:He/She is 。.。

      活動(dòng)四:趣味游戲Let's play──Can you guess?

      請(qǐng)一位同學(xué)到講臺(tái)前,蒙上眼睛,叫臺(tái)下的另一個(gè)同學(xué)說(shuō):I am 。.。全班同學(xué)齊問(wèn):What is he/she doing?蒙眼睛的同學(xué)使用這樣的句型(collecting insects)。

      四、Consolidation and extension

      拓展一:

      練習(xí):完成活動(dòng)手冊(cè)P52第1小題

      學(xué)生打開(kāi)書(shū),看表格。教師播放錄音,學(xué)生完成表格。

      教師請(qǐng)學(xué)生訂正答案。

      教學(xué)目的:加強(qiáng)學(xué)生書(shū)寫(xiě)練習(xí),鞏固所學(xué)動(dòng)詞短語(yǔ)。

      首先,請(qǐng)學(xué)生到講臺(tái)前表演動(dòng)作。

      然后,請(qǐng)其余學(xué)生完成表格,找出他(她)在干什么?Let's find out:What is he /she doing?

      請(qǐng)學(xué)生根據(jù)自己填寫(xiě)的表格進(jìn)行匯報(bào),教師可以給予句型引導(dǎo):。.。 is 。.。

      最后在投影儀上展示優(yōu)秀學(xué)生的書(shū)寫(xiě)表格。

      活動(dòng)目的:呈現(xiàn)Let's learn部分的畫(huà)面,并提供學(xué)生語(yǔ)言運(yùn)用的場(chǎng)景。讓學(xué)生通過(guò)完成表格的形式來(lái)檢驗(yàn)自己的學(xué)習(xí)效果。

      五、板書(shū)

      Unit 6 A field trip

      What is he/she doing?

      He/She is.。.

      counting insects

      collecting leaves

      writing a report

      playing chess

      having a picnic

    八年級(jí)下冊(cè)英語(yǔ)教案3

      教學(xué)目標(biāo)

      一、知識(shí)與技能

      1. 掌握新單詞和短語(yǔ)。

      2. 在不同的情境中正確、熟練地使用表示委婉請(qǐng)求的句型。

      3. 培養(yǎng)聽(tīng)、說(shuō)、讀、寫(xiě)四項(xiàng)基本技能。

      二、過(guò)程與方法

      觀看,感受,模仿,實(shí)踐。

      三、情感態(tài)度與價(jià)值觀

      認(rèn)識(shí)到不僅在家庭中,在生活中的其他情況我們也要積極參加,勇于實(shí)踐。

      教學(xué)重點(diǎn)

      在不同的情境中正確、熟練地使用表示委婉請(qǐng)求的句型。

      教學(xué)難點(diǎn)

      培養(yǎng)聽(tīng)、說(shuō)、讀、寫(xiě)四項(xiàng)基本技能。

      教法導(dǎo)航

      創(chuàng)設(shè)情境,實(shí)踐演練。

      學(xué)法導(dǎo)航

      通過(guò)聽(tīng)說(shuō)讀寫(xiě),獨(dú)立思考,小組合作完成學(xué)習(xí)任務(wù),提高各項(xiàng)能力。

      教學(xué)準(zhǔn)備

      圖片,多媒體。

    八年級(jí)下冊(cè)英語(yǔ)教案4

      Teaching goals(教學(xué)目標(biāo))

      1.Words : barber shop , well , bathroom , accident , earth , silence , playground , around , strange , kitchen , modern , follow , shirt .

      2.when , while引導(dǎo)的時(shí)間狀語(yǔ)從句。

      3.學(xué)習(xí)過(guò)去進(jìn)行時(shí)態(tài)。

      4.利用知識(shí)談?wù)撨^(guò)去發(fā)生的事情。

      5.復(fù)習(xí)過(guò)去式,學(xué)會(huì)講故事。

      6.了解一些自然科學(xué)知識(shí)和社會(huì)科學(xué)知識(shí)。

      Important and difficult points:(教學(xué)重難點(diǎn))

      1.when , while引導(dǎo)的時(shí)間狀語(yǔ)從句。

      2.學(xué)習(xí)過(guò)去進(jìn)行時(shí)態(tài)。Teaching aids : a tape-recorder , cards .

      第一課時(shí)

      Teaching procedures(教學(xué)步驟):

      Step 1 Leading in(導(dǎo)入話題,激活背景知識(shí))

      1.Greetings and free-talk .

      2.Check the Homework(家庭作業(yè)).

      3.Dictate the words in Unit2 .

      Step 2 Pre-task(任務(wù)前活動(dòng))SB Page 18 , 1a .

      1.Point to the sentences .Read the sentences .Explain what each one means .

      2.Look at the picture .Point out the six people .Match the statements with the people in the picture .

      3.Check the answers .

      4.Practice reading .

      Step 3 While-task(任務(wù)中活動(dòng))SB Page 18 , 1b .

      1.Read the instructions .Make sure the Ss understand what they should do .

      2.Look at the dialogue in the picture .

      語(yǔ)法:

      過(guò)去進(jìn)行時(shí)態(tài)的構(gòu)成: was / were + doing .

      用法:表示過(guò)去某一時(shí)刻或某一段時(shí)間正在進(jìn)行的動(dòng)作,一般用時(shí)間狀語(yǔ)來(lái)表示。

      I was standing in front of the library when the UFO arrived .

      3.Play the tape twice . Circle the correct responses . 4.Check the answers .

      Step 4 Post-task(任務(wù)后活動(dòng))

      Talk about what people were doing when the UFO arrived .

      Step 5 While-task(任務(wù)中活動(dòng))SB Page 19 , 2a .

      1.Read the sentences .Make sure the Ss understand what they mean .

      2.Play the tape twice .Order these statements .

      3.Play the tape again ,correct the answers .

      SB Page 19 , 2b .

      1.Read the instructions . 2.Play the recording .Write “when” or “while” on each line .

      3.Play the recording again ,correct their answers .

      Notice: when / while

      ※ When comes before a quick action that happens only once .The word “while” comes from an action that continues for some time .

      Step 6 Post-task(任務(wù)后活動(dòng))SB Page 19 , 2c .

      1.Point ort the picture .Ask what each person is doing .

      2.Groupwork : Ask “What was …doing when the UFO arrived ?”

      3.Ask a group to say its conversation to the class .

      Step 7 Grammar Focus

      Review the grammar box by asking some students to read the sentences .

      Homework(家庭作業(yè)):

      1.Go over the words in this unit

      2.用介詞或介詞短語(yǔ)填空。

      ① They were talking the phone .

      ② I was he barber’s chair .

      ③ The boy was walking the street when a UFO landed .

      ④ I had a very unusual experience Sunday .

      ⑤ The alien visited the Museum Flight .

      教學(xué)后記:

      第二課時(shí)

      課前準(zhǔn)備:

      教師:錄音機(jī),所學(xué)物品的圖片。

      學(xué)生:英語(yǔ)點(diǎn)金教練及相關(guān)的學(xué)習(xí)用具

      Teaching procedures(教學(xué)步驟):

      Step 1 Leading in(導(dǎo)入話題,激活背景知識(shí))

      1.Greetings and free-talk .

      2.Check the Homework(家庭作業(yè)).

      Step 2 While-task(任務(wù)中活動(dòng))SB Page 20 , 3a .

      1.Read the instructions .

      2.Read the e-mail by the Ss first .Number the pictures in the correct order .

      3.Explain something .

      4.Practice reading and listen to the tape .

      SB Page 20 , 3b .

      Cover the story .Look at the pictures and take turns to tell the story . I think this activity is hard to most of the students .

      If necessary , do it as Homework(家庭作業(yè)).

      SB Page 20 , Part 4 .

      What were you doing at these times last Sunday ?

      1.Read the sample dialogue in the box .

      2.Look at the table .Read the times for the Ss .

      3.Pairwork : Talk about what they were doing at different times .

      4.Write down your answers .

      5.Practice reading .

      Step 3 Post-task(任務(wù)后活動(dòng))

      Make an interview .

      Interview two classmates in your class and write down their answers .Begin like this :

      -----What were you doing at … ? ------I was … .

      Homework(家庭作業(yè)):

      Cover the story in 3a .Try to retell the story .

      教學(xué)后記:

      第三課時(shí)

      課前準(zhǔn)備:

      教師:錄音機(jī),所學(xué)物品的圖片。

      學(xué)生:英語(yǔ)點(diǎn)金教練及相關(guān)的學(xué)習(xí)用具

      Teaching procedures(教學(xué)步驟):

      Step 1 Leading in(導(dǎo)入話題,激活背景知識(shí))

      1.Greetings and free-talk .

      2.Check the Homework(家庭作業(yè)).

      Step 2 Pre-task(任務(wù)前活動(dòng))SB Page 21 , 1c .

      1.Look at the pictures .Please say something about the picture .

      2.Read the sentences and explain the new words .

      3.Match the sentences with the pictures .

      4.Check the answers .

      Step 3 While-task(任務(wù)中活動(dòng))SB Page 21 , 2a & 2b .

      1.Read the things in the chart below .They will help Ss to guess what you will heard .Hear six things in the chart .

      2.Play the recording the first time .Ss only listen .

      3.Play the recording a second time .Check the phrases they hear on the recording .

      4.Listen again .Pay attention to the persons who did each thing in the chart above .Match the phrases with the persons .

      5.Play the tape again and correct the answers .

      Step 4 Post-task(任務(wù)后活動(dòng))SB Page 21 , 2c .

      Pairwork : Read the sample dialogue in the box .Talk about the people in activity 2a .S1 begins a sentence with the word “while” ,S2 complete the sentence .

      ① While John was walking to school , he saw a cat in a tree .

      ② While John was climbing the tree , a man saw him .

      ③ While the man was calling the police , a woman called the newspaper .

      ④ While the newspaper reporter was taking photos ,the cat went up the tree again .

      Ss can say them out by themselves .

      Homework(家庭作業(yè)):

      SB Page 23 , Selfcheck , Parts 1and 2 .

      教學(xué)后記:

      第四課時(shí)

      課前準(zhǔn)備:

      教師:錄音機(jī),所學(xué)物品的圖片。

      學(xué)生:英語(yǔ)點(diǎn)金教練及相關(guān)的學(xué)習(xí)用具

      Teaching procedures(教學(xué)步驟):

      Step 1 Leading in(導(dǎo)入話題,激活背景知識(shí))

      1.Greetings and free-talk .

      2.Check the Homework(家庭作業(yè)): Correct the answers .

      Step 2 Pre-task(任務(wù)前活動(dòng))SB Page 22 , Part 3 .

      1.Read the instructions ,pointing to the article and the list of questions .

      2.Scan the passage for the main idea .

      T: Who found Linda’s dog ? (the police officer’s dog )

      3.Read the questions by the Ss .Make sure they understand them .

      4.Play the recording .Ss listen carefully . 5.Write answers to the questions .

      6.Practice reading .7. Correct the answers .

      Step 3 While-task(任務(wù)中活動(dòng))SB Page 22 , 4a .

      1.Read the instructions .

      2.Look at the pictures .Discuss in groups .

      3.Ask students to explain what is happening in each picture .

      4.Complete the work on their own .Remind them to use times in their stories .

      5.Share their stories .(If someone can’t finish it in class ,do it as Homework(家庭作業(yè)).)

      Step 4 Post-task(任務(wù)后活動(dòng))SB Page 22 , 4b .

      1.Read the instructions . 2.Read the times .

      3.Pairwork : One is the police officer ,the other is the bicycle thief .Begin like this :

      A: Where were you at … ? B: I was in the park .

      A: What were you doing there ? B : … .

      4.Show the role-plays to the class .

      Homework(家庭作業(yè)):

      1.Finish Selfcheck , Part 3 .

      2.運(yùn)用過(guò)去進(jìn)行時(shí)態(tài)when / while來(lái)描述上個(gè)星期日兩人不同的動(dòng)作,寫(xiě)出五個(gè)正確的句子。

      Time

      Action

      Linda

      Me

      8:00 am

      read English

      play football

      12:00 am

      have lunch

      read newspaper

      2:00 pm

      have a rest

      play computer games

      4:00 pm

      play basketball

      sleep

      6:00 pm

      do Homework(家庭作業(yè))

      watch TV

      教學(xué)后記:

      第五課時(shí)

      課前準(zhǔn)備:

      教師:錄音機(jī),所學(xué)物品的圖片。

      學(xué)生:英語(yǔ)點(diǎn)金教練及相關(guān)的學(xué)習(xí)用具

      Teaching procedures(教學(xué)步驟):

      Step 1 Leading in(導(dǎo)入話題,激活背景知識(shí))

      1.Greetings and free-talk .

      2.Check the Homework(家庭作業(yè)).

      Step 2 Pre-task(任務(wù)前活動(dòng))SB Page 24 , Groupwork .

      1.Arrange the Ss in small groups .Ask them to look at the pictures and talk about the events .Encourage students to say how historical events affected their lives .

      2.Tell the Ss to help each other with vocabulary they might need and don’t know .

      Step 3 While-task(任務(wù)中活動(dòng))

      1.Reading strategy :The title can be helpful for you to understand a text .It is also a good idea to read the first sentence of each paragraph before reading .

      2.Read the title ,which gives an indication of the content of the reading .Think of one question they think might be answered in the reading .

      3.Play the recording , Ss listen . 4.Ask Ss to read the story out to the class .

      5.Ask Ss to comment on whether their questions in the previewing stage were answered .

      Step 4 Post-task(任務(wù)后活動(dòng))SB Page 25 , 3a .

      Read the four events and match them to the correct dates .When finished ,ask Ss to swap their book with a partner for correction .

      Homework(家庭作業(yè)):

      Write about an event that you remember well .Give dates and say why you remember it ,and what you were doing at the time when you heard the news .

      教學(xué)后記:

      第六課時(shí):測(cè)試課

      一、單項(xiàng)選擇。

      ()1. What ____ you ____ when she came in?

      A. did, do B. are, doing C. do, do D. were, doing

      ()2. The girl is ill. She’s ______.

      A. in hosp

    【八年級(jí)下冊(cè)英語(yǔ)教案】相關(guān)文章:

    八年級(jí)下冊(cè)英語(yǔ)教案11-04

    八年級(jí)下冊(cè)英語(yǔ)教案10-15

    八年級(jí)下冊(cè)英語(yǔ)教案6篇11-04

    八年級(jí)下冊(cè)英語(yǔ)教案4篇12-15

    八年級(jí)下冊(cè)英語(yǔ)教案教學(xué)設(shè)計(jì)12-15

    八年級(jí)下冊(cè)英語(yǔ)教案4篇12-15

    八年級(jí)下冊(cè)英語(yǔ)教案(4篇)12-15

    八年級(jí)下冊(cè)英語(yǔ)教案教學(xué)設(shè)計(jì)范文04-11

    八年級(jí)英語(yǔ)教案07-20

    国产一级a爱做免费播放_91揄拍久久久久无码免费_欧美视频在线播放精品a_亚洲成色在线综合网站免费

      在线观看免费不打码片 | 日韩动漫在线一区二区 | 亚洲精品播放在线网站 | 一级一黄免费视频在线看 | 日韩精品久久久久久福利 | 亚洲国产成a人v在线观看 |