新譯林版六年級(jí)下冊(cè)Unit教案.doc

.朱橋鎮(zhèn)五里小學(xué)備課筆記教學(xué)內(nèi)容Unit4 Road safety (Story time)課時(shí)第一課時(shí)教 學(xué)目 標(biāo)1. 在情景中整體理解Story time的內(nèi)容。2. 在 Storytime 的學(xué)習(xí)過(guò)程中掌握有關(guān)道路交通方面的新詞 road, light, zebra crossing, pavement, look out for, easily, rules, follow，體會(huì)情態(tài)動(dòng)詞must及其否定must not 的用法，并能簡(jiǎn)單區(qū)分形容詞safe,名詞safety及副詞safely的不同。3. 能用正確的語(yǔ)音語(yǔ)調(diào)朗讀Story time。4. 能理解道路安全知識(shí)，嘗試用英語(yǔ)說(shuō)說(shuō)道路交通規(guī)則。5. 能牢記過(guò)馬路的交通規(guī)則，樹(shù)立安全意識(shí)。內(nèi)容分析 重點(diǎn)1. 能理解道路安全知識(shí)，嘗試用英語(yǔ)說(shuō)說(shuō)道路交通規(guī)則。2. 在 Storytime 的學(xué)習(xí)過(guò)程中掌握有關(guān)道路交通方面的新詞 road, light, zebra crossing, pavement, look out for, easily, rules, follow，must，safety，safely。難點(diǎn)1. 體會(huì)情態(tài)動(dòng)詞must及其否定must not 的用法，并能簡(jiǎn)單區(qū)分形容詞safe,名詞safety及副詞safely的不同。2. 能牢記過(guò)馬路的交通規(guī)則，樹(shù)立安全意識(shí)。教學(xué)重、難點(diǎn)突破方法交際教學(xué)法、直觀教學(xué)法、講授法、任務(wù)型教學(xué)法、小組合作教學(xué)法等教學(xué)準(zhǔn)備PPT&教學(xué)光盤(pán)教 學(xué) 活 動(dòng)二次備課Step 1 Pre-readingTeach: road , safe, safety, safely, cross, rules1. Free talk: T: How do you go to school? How does your motherfather go to work? S: On foot or by bikebuscar T: 總結(jié) ： Every day, we walk or drive on the road.2. Look at some pictures. (看一些行人、司機(jī)圖片)1） Look and judge. Are they right? Ss: Yes, yes, yes! No. no, no!2） T：總結(jié)We must keep safe.Road safety is very important.3. Lead-in: T：揭題：Today we are going to talk about “Road safety”.There are many busy roads in the cities. How can we cross the roads safely?To keep safe, we must follow some rules.4. T:Do you know any rules?（讓學(xué)生表達(dá)自己已有的生活經(jīng)驗(yàn)，了解學(xué)生的語(yǔ)言基礎(chǔ)。）Ss: 學(xué)生自由說(shuō)說(shuō)交通規(guī)則：eg: We must look for a zebra crossing. We must look at the traffic lights.Step 2 While-reading （Story time）1. 學(xué)習(xí)課文第一部分T: How can we cross the roads safely ？Lets learn from the storytime.1） Read freely2） Try to answer with “first,then”學(xué)生自讀完之后用自己的語(yǔ)言歸納。3） Read togetherFinish the form:At the zebra crossingfirstLook at the traffic lightsthenWait for the green manTeach: greenred manT: What is green man? What is red man? What do they mean?The policeman tells us. Lets read and act.4）Read and act the policeman.T: When the light is green , that means we can cross the road When the light is red, that means we must not cross the road.What about the yellow man?Ss: （根據(jù)學(xué)生已有知識(shí)經(jīng)驗(yàn)）It means “wait”That is to say.Red man means stop, green man means go, yellow man means wait.2. 自讀課文，學(xué)習(xí)課文第二部分T:But sometimes you cannot find a zebra crossing near you.How can we cross the road safely?1) Read freely. And try to get the main imformation.2) Line down the answers of these queations.Questions：Where must we wait before we cross the road?What should we do when we wait?How should we look out for the traffic?Is it a good idea to cross the road with other people? Why?3) Checkout the answers.回答問(wèn)題并完成表格信息。No zebra crossingWait on the pavement.Look out for cars and bikes.Look left first, then right and then left againCross the road with other people.3. 看圖討論，學(xué)習(xí)課文第三部分呈現(xiàn)課文第三部分的兩張插圖(加上一幅奔跑穿過(guò)馬路的同學(xué))T: What can you see in the pictures?Ss: Some boys are playing football by the road. A boy is skatingrunning on the road.T: Is it safe?Why?Ss: Because there are many cars and bikes on the road.So what rules do you know?Ss: We must not run or play on the road.T: We must follow the rules and stay safe on the road!4. 整理理解，鞏固1) Watch and repeat.2) Reading the text.3) Think and write.( 書(shū)上P 38)Step 3 Post-reading1. Today we learnt some rules about road safety.Lets sum up.（板書(shū)并附上圖片）Rule1: look for a zebra crossing,Rule2: wait on the pavement,Rule3: dont run or play on the road.(Learning tip: The pictures can help you cross the road safely.)2. Look and say.(書(shū)上 P38 )T: What must you do to cross the road safely?Ss: We mustT: What must you not do on the road?Ss: We mustnt3. 回到開(kāi)頭提供的圖片，用英語(yǔ)描述解釋 Why yes. Why no.Step 4 Consolidation1. Learn some proverbs about the road safety.Never forget about safety.Safety is as simple as ABC- Always Be Careful.2. Homework.1) Read the story time fluently（ Read well ）.2) Collect more rules about “Road Safety.” 板書(shū)設(shè)計(jì)Unit 4 Road Safety (story time)Rule1：We must look for a and look at the .Rule 2：We can wait on the and look out for cars and bikes.We can also cross the road with .Rule 3：We must not or on the road.教后反思朱橋鎮(zhèn)五里小學(xué)備課筆記教學(xué)內(nèi)容Unit4 Road safety(Grammar time&Fun time)課時(shí)第二課時(shí)教 學(xué)目 標(biāo)1.能對(duì)storytime進(jìn)行自主復(fù)習(xí)，并認(rèn)識(shí)更多交通標(biāo)志，掌握安全知識(shí)，做遵守交通規(guī)則的社會(huì)公民。2.能理解并運(yùn)用情態(tài)動(dòng)詞must及其否定must not（mustnt） 的用法，復(fù)習(xí)已學(xué)過(guò)的情態(tài)動(dòng)詞canshould及否定用法。3.能使用更多關(guān)于規(guī)則和規(guī)定的表達(dá)法，如Please Dont 內(nèi)容分析 重點(diǎn)認(rèn)識(shí)更多交通標(biāo)志，掌握安全知識(shí)，做遵守交通規(guī)則的社會(huì)公民。難點(diǎn)能理解并運(yùn)用情態(tài)動(dòng)詞must及其否定must not（mustnt） 的用法，復(fù)習(xí)已學(xué)過(guò)的情態(tài)動(dòng)詞canshould及否定用法。教學(xué)重、難點(diǎn)突破方法交際教學(xué)法、直觀教學(xué)法、講授法、任務(wù)型教學(xué)法、小組合作教學(xué)法等教學(xué)準(zhǔn)備PPT&教學(xué)光盤(pán)教 學(xué) 活 動(dòng)二次備課Step 1 Revision1. Free talk Talk about some signs on the road.Traffic lights:  green means go,red means stop.（左轉(zhuǎn)彎標(biāo)志 停車(chē)） It means you can turn leftpark here.（禁止左轉(zhuǎn)彎 停車(chē)標(biāo)志）Can you turn leftpark here? You mustnt turn leftpark here.2. Review the storytimeT: What do we learned last lesson?Ss: last lesson , we learned some rules .T: What are the rules ? How can we cross the roads safely?（用圖片復(fù)習(xí)鞏固Storytime ，強(qiáng)化learning tip）Ss: Rule 1:First, we must look for the zebra crossing, then we must look at the traffic lights.T: Sometimes we cannot find a zebra crossing, how can we cross the road?Ss: Rule 2:We can wait on the pavement and look out for the cars and bikes.We must look left ,then right and then left again.We can also cross the road with other people.T: What must you not do on the road?Ss:We mustnt play or run on the road, its not safe. Step 2 Grammar time 1.PPT 展示Q: How can we cross the road safely?What must you not do on the road?學(xué)生根據(jù)Storytime中的內(nèi)容進(jìn)行自由回答,PPT 展示答句。Rule 1:First, we must look for the zebra crossing, then we must look at the traffic lights and wait for the green man.Rule 2:We can wait on the pavement and we can cross the road with other people.Rule 3:We mustnt play or run on the road.2.自主發(fā)現(xiàn)語(yǔ)法規(guī)律T：Look at these rules, how can we talk about the rules?(what words do we usually use in the sentences?)Ss: We usually use canmust do or cantmustnt do. We also can use should or shouldnt doT: After these words,we use do or doing?Ss:do3.運(yùn)用語(yǔ)法規(guī)律T: Can you name some rules?Ss:We canshouldmust We cantshouldntmustnt (parkturn leftplayrun)4.總結(jié)語(yǔ)法規(guī)律 描述規(guī)則和規(guī)定有以下三種句式：canshouldmust加動(dòng)詞原形 名詞、名詞短語(yǔ) 祈使句DontStep3 Fun time1.The policeman knows a lot about the rules on the road.Lets play a game about the rules on the road.2.游戲規(guī)則：（Explain the game）將學(xué)生分成五人一小組，仿照Fun time范例，開(kāi)展“紅綠燈”游戲問(wèn)答，一人演交警，提出問(wèn)題，指定某人回答，其他人要給予反饋。3.示范游戲：（make a model）S1：Red man, stop. Green man, go! What must you do on the road? S2: I must look out for cars.（可有其他回答）S3: Right.S1: What must you do on the road?S4: I must run quickly on the road. （可有其他回答）S5: No,you mustnt run quickly on the road!4.小組游戲：（Play the game in groups.）Step 4 Consolidation1. Practice1)Sam,Bobby and Tina want to visit our city-Changzhou.There are many interesting places in Changzhou: BRT and many parksTheir schedule（日程表） is in the form.In the morningThe shopping center (Tina)The Dinosaur Park(Sam and Bobby)At lunchtimeRestaurant(Sam,Bobby and Tina)In the afternoonThe cinema(Sam,Bobby and Tina)2). Ask and answer.Can you tell Bobby and Tina what rules they must follow in different places?Model:T:What must Tina do in the library?Ss:She must keep quiet.T:What must she not do in the library?Ss:She must not eat or drink.Work in pairs3) Group workRule：將學(xué)生分成五人一組，仿照Fun time范例，三人分別演Sam, Bobby 及 Tina提出問(wèn)題，由另外兩人演小導(dǎo)游替他們解決問(wèn)題。Model:S1,2：Welcome to Changzhou!S3,4,5: Thank you!S3:What must I do at the shopping center?S1: You must put the rubbish in the bin.S4: What must I do at in the Dinosaur park?S2: You must be careful.S5: What must we do in the cinema?S1,2:You must keep quiet.Work in groups2.Summary1)Different places, different rules.We must follow different rules in different places.You know so many rules in the public places. and you should follow these rules, too.2)HomeworkLook for more rules in public places.Write down the rules, the more the better. 板書(shū)設(shè)計(jì)Unit 4 Road Safety Canshouldmust +doDangerBe carefulDontDifferent places, different rules.教后反思朱橋鎮(zhèn)五里小學(xué)備課筆記教學(xué)內(nèi)容Unit4 Road safety(Sound time, culture time &cartoon time)課時(shí)第三課時(shí)教 學(xué)目 標(biāo)1. 了解句子重音的作用，并能進(jìn)行積極的嘗試運(yùn)用；2. 知曉英國(guó)和中國(guó)汽車(chē)行駛的方向不同，并有興趣了解更多國(guó)家交通規(guī)則的異同點(diǎn)；3.通過(guò)Cartoon time的學(xué)習(xí)，增強(qiáng)分析和提煉信息的能力，并能進(jìn)行準(zhǔn)確的朗讀和較為生動(dòng)的表演；4. 進(jìn)一步提升公民素養(yǎng)，知曉交通規(guī)則和禮讓行人的重要性。內(nèi)容分析 重點(diǎn)1. 通過(guò)Cartoon time的學(xué)習(xí)，提升學(xué)生的自主學(xué)習(xí)能力；2.了解中西方國(guó)家交通規(guī)則的異同點(diǎn)。難點(diǎn)句子重音的理解和嘗試運(yùn)用。教學(xué)重、難點(diǎn)突破方法交際教學(xué)法、直觀教學(xué)法、講授法、任務(wù)型教學(xué)法、小組合作教學(xué)法等教學(xué)準(zhǔn)備PPT&教學(xué)光盤(pán)教 學(xué) 活 動(dòng)二次備課Step 1 Warm up1. Greetings: Date/ weather2. Play a game:( Fun time)TSs; In groups.Step 2 Sound time1. Try to know something about stress.T: What is the most important rule on the road? Ss：Red man, stop. Green man, go. T: Who can read it for us? S1: Red man, stop. Green man, go. T: You read .more loudly. Why? S1: 突出重點(diǎn)/ T: In English, we call this “ Stress”. It has two functions.1.體現(xiàn)句子的節(jié)奏感和韻律感。2.突出重點(diǎn),使聽(tīng)者更容易理解。 So, you need to read some words in a sentence more loudly.2. Learn the rhyme1) Listen to the rhyme and try to find out the stress.Learning tip: 在一般情況下，句子中比較重要的詞要重讀，如名詞、動(dòng)詞、形容詞和副詞等。重讀單詞的發(fā)音聽(tīng)起來(lái)相對(duì)響亮而且清晰。2) Check the answers. 3）Read the rhyme.Follow the tape; Read together; Read in pairs.6) Try to read some other sentences.T: How to read them? Please try, you can discuss in groups.Bobby and Tina go to see their aunt by bus.There are so many cars on the road.The bus stops again and again.Step 3 Cartoon timeT: These sentences are about an interesting story in cartoon time. Lets enjoy it.1.Talk about Picture 1.1) Show Picture 1 to the Ss, let them try to ask some questions. 2) Read and answer the questions.2. Talk about Picture 2. 1) Show Picture 2 to the Ss. Let them try to ask some questions.2) Read and answer the questions.3. Talk about Picture 3&4.1) Read the story quickly, then answer the question: How many times does the bus stop?2) Watch the cartoon, and find out the reasons of stopping the bus.The first time Ss: Because theres the red man, they must stop the bus. T: This is the most important rule on the road. When can they go? Ss: When they see the green man. T: Do you know more rules on the road? Ss: We must not play on the road./ T: We must follow the rules on the road.The second time T: Why do they stop the bus again? Is there a red man, too? Ss: No, some elephants are crossing the road. They must stop and wait. T: No, I see. This is another important rule on the road. Who can tell us? Ss:禮讓行人T: Yes, we should give way to pedestrians.3. Read the text.1) Listen and pay attention to the stress.2) Read together.3) Give a title to the story.4. Act it. 1) Act the story.2) (接最后一組表演) The bus stops again. What happened? Please imagine and act. Step 4 Culture time T: Bobby wants to know more about the rules on the road. The next day, he goes to the library and read some books about them. 1. Show the Ss the book “ How to drive in different countries?”T: Which side of the road do people drive in China?Ss: They drive on the left side of the road.T: Do people drive on the left side of the road in all the countries?Ss:2. Read and choose.Page1 : In the UK, people drive on the left side of the road.Page 2: In fact, in most of the countries, people drive on the left side of the road. For example: Australia, Japan, Singapore, New ZealandPage 3: In China, except Hong Kong and Macau, people drive on the right side of the road. Page 4：In these countries, American, Canada, France, Germany（德國(guó)）,people drive on the right side of the road,too.1) In ( ), people drive on the left side of the road.2) In ( ), people drive on the right side of the road. Australia, China, Japan, America, Canada, English3.1)Show the Ss the book “ The month in history” First traffic light! 20 October, 1923: People in American first use a traffic light. It is a little different from todays traffic light. It has two parts. One says”Go” and the other says “Stop”. When people see Go, they can cross the road. Safe crossing!31 October, 1951: People first walk over a zebra-crossing in England. A zebra-crossing is white and black. People can see it easily. People walk over a zebra-crossing when they want to cross the road. This can keep them safe from cars.2) Read and choose.1. people first use the traffic light.A. Chinese B. English C. American 2. The first traffic light has part(s).A. one B. two C.three3. People can see a zebra-crossing easily because .A. it is white and blackB. it is in EnglandC. many people like zebrasStep 4 SummaryHomework:1.熟讀Culture time 和Cartoon time, 試著標(biāo)出重音。2.表演Cartoon time, 并進(jìn)行續(xù)編。3. 通過(guò)上網(wǎng)瀏覽等多種方法，了解更多的交通知識(shí)。 板書(shū)設(shè)計(jì)Unit 4 Road Safety the red man some elephant are crossing Bobby頭像 Tina 頭像 see their aunt教后反思朱橋鎮(zhèn)五里小學(xué)備課筆記教學(xué)內(nèi)容Unit4 Road safety(Checkout time & Ticking time)課時(shí)第四課時(shí)教 學(xué)目 標(biāo)1.準(zhǔn)確運(yùn)用句型We must/mustnt 談?wù)摻煌ò踩?.能結(jié)合語(yǔ)境，準(zhǔn)確運(yùn)用must, mustnt, can, cant.；3.準(zhǔn)確運(yùn)用含有must, mustnt 的句型，談?wù)摪嗉?jí)規(guī)則等，并嘗試寫(xiě)一寫(xiě)，制作成海報(bào)。4.進(jìn)一步強(qiáng)化規(guī)則意識(shí)，做一個(gè)懂規(guī)則，守規(guī)則的人。內(nèi)容分析 重點(diǎn)1.準(zhǔn)確運(yùn)用含有must, mustnt 的句型，談?wù)摪嗉?jí)規(guī)則等，并嘗試寫(xiě)一寫(xiě)，制作成海報(bào)；2.能結(jié)合語(yǔ)境，準(zhǔn)確運(yùn)用must, mustnt, can, cant。難點(diǎn)含有must, mustnt 的句型的準(zhǔn)確表達(dá)及正確運(yùn)用。教學(xué)重、難點(diǎn)突破方法交際教學(xué)法、直觀教學(xué)法、講授法、任務(wù)型教學(xué)法、小組合作教學(xué)法等教學(xué)準(zhǔn)備PPT&教學(xué)光盤(pán)教 學(xué) 活 動(dòng)二次備課 Step 1 Lead-in 1. Greetings: Date/Weather.2. Revise the story in Cartoon timeYesterday Bobby and Tina went to see their aunt , they took a bus. But the bus stopped twice, why?3.PK time. Talk about the rules on the road and at home. Boys use the sentence: We must. Girls use the sentence: We mustntStep 2 Presentation Read and circle.1.T: What rules do they need to observe? Please read and circle.2. Check the answers.Picture1: T: The first picture, which pair wants to try? S1: Can I watch TV? S2: No, you cant . You must go to bed.T: Can you watch TV every day?S: No, we cant . We can watch TV at weekends.3.Discuss the differences between must and can.(must 表示說(shuō)話人“不許”和“禁止”某人做某事，有很強(qiáng)的勸告語(yǔ)氣。Can表示有能力或有權(quán)利做某事。)Step 3 Writing T:When were at home, we should follow some rules. When we go to school, in order to keep safe on the road, we should follow the traffic rules. When we are at school ,we should also follow the classroom rules, right?1.Match and say: 1) T: What are they doing ? S: Theyre talking to each other. T: What do you want to say to them? S: You must keep quiet./ You mustnt talk to each other. / You must listen to the teacher.2)T: How about other students? Which class rules are the students breaking? Write the numbers in the circles in pairs.Classroom rules1 We must not eat or drink in the classroom.2 We must keep quiet.3 We mustnt play in the classroom.4.We must not chase（追趕）each other.5.We must not be late for school.6. We must not draw on the desks.7. We must listen to our teachers in class.3) Check and discussion.2. Think and write.1) T: Liu Tao wants to make a poster about his classroom rules. Lets help him.Please complete the poster with “must” and “must not”. Ss: Try to write down the answers.2) Check the answers. S1：You mustnt run in the classroom.T: Its easy to bump into someone（撞到別人）.（教師在學(xué)生回答的過(guò)程中，注意追問(wèn)和拓展。）3.Talk and write.1)T: I think classroom rules are important for us. So lets find out our class rules.First, discuss in groups. Then, write down the rules on the paper. (每位學(xué)生寫(xiě)出一條自己覺(jué)得最重要的班規(guī)。)2) Make a poster together.Talk about the rules, choose some of them and stick on the poster.T: Show us your paper and read it loudly, please.S1: We must/mustntT: Is this a good rule?S1: Yes. T: Who has the same idea?3) Let the Ss read their classroom rules together. 4) Take an oath: This is our classroom rules. I will abide by them.3. Talk about the rules in different places.T: We have rules on the road, in the classroom. Where else do we have rules?Ss: We have rules in the library/ in the park1)Read, think and match.T: Therere ten rules. Where do we have them? Please think and match in pairs.a. In the library b. In the classroom c. On the road d. In the park1. We mustnt walk on the grass. 2. We mustnt play basketball. 3. We mustnt throw rubbish. 8. We mustnt draw on our desks.4. We mustnt eat or drink. 5. We must wait for the green man. 6. We must keep quiet. 7. We must listen to our teacher. 9. We mustnt run fast on the road.10. We mustnt pick the flowers. Get the Ss try to say like this: We mustnt walk on the grass in the park.2) Show the students some pictures about impolite behaviors.T:When you are in public places, Please follow the rules, to be a polite student. If you observe some impolite behaviors, do you have courage to warn them? How to warn them? What to say?Tips: When we give advice to others, we should pay attention to our tones. 3)Make posters.To keep our life more beautiful, we need rules. For example, the park rules, the bank rules , the hospital rules , the library rules, family rules and so on. Choose one , Make a poster in your team. Homework:1.通過(guò)調(diào)查、觀察等方式，進(jìn)一步完善相關(guān)場(chǎng)所的規(guī)則。2. 依據(jù)Ticking time ,自主復(fù)習(xí)相關(guān)知識(shí)點(diǎn)。 板書(shū)設(shè)計(jì)Unit 4 Road Safety Our classroom rules1.2.3.4.5. 教后反思朱橋鎮(zhèn)五里小學(xué)備課筆記教學(xué)內(nèi)容Unit4 Road safety(Review and check)課時(shí)第五課時(shí)教 學(xué)目 標(biāo)1. 熟練掌握本單元的生詞，短語(yǔ)、句型和日常交際用語(yǔ)。2. 理解情態(tài)動(dòng)詞can, must, cant, mustnt 的用法，并能熟練運(yùn)用。內(nèi)容分析 重點(diǎn)1. 熟練掌握本單元的生詞，短語(yǔ)、句型和日常交際用語(yǔ)。2. 理解情態(tài)動(dòng)詞can, must, cant, mustnt 的用法，并能熟練運(yùn)用。難點(diǎn)含有must, mustnt 的句型的準(zhǔn)確表達(dá)及正確運(yùn)用。教學(xué)重、難點(diǎn)突破方法交際教學(xué)法、直觀教學(xué)法、講授法、任務(wù)型教學(xué)法、小組合作教學(xué)法等教學(xué)準(zhǔn)備PPT教 學(xué) 活 動(dòng)二次備課Step 1 Review復(fù)習(xí)本單元單詞和短語(yǔ)，及語(yǔ)法點(diǎn)。聽(tīng)寫(xiě)，背誦，核對(duì)Step 2. practice 一、中英文互譯過(guò)馬路 尋找 斑馬線 跟我來(lái) 在人行道上等 look out for cars run quickly go to bed keep your desk clean go to the doctor 二、情景配對(duì)。（）1. Can I watch TV?A. Some porridge.（）2.How do we get to the zoo?B. You can take a bus.（）3.What must you do on the road?C. Yes, we can .（）4.Can you see the red man?D. Look out for cars.（）5.What do you have for dinner?E. No, you cant.三、用所給詞的正確形式填空There (be) any cola in the fridge.You shouldnt talk (loud) in the office.Your mother (do) housework at weekends.Give (I) your notebook.I (buy) a mobile phone last week.四、根據(jù)漢語(yǔ)提示完成句子。1.我必須去看醫(yī)生嗎？ I the doctor?2.你生病不能上學(xué)。You go to school youre .3.一些大象正在過(guò)馬路。Some elephants the road .六、改錯(cuò)。（）We must waiting for the green man. A B C（）What do we get to your house ? A B C（）It mean we must stop. A B C（）Why do the bus stop here ? A B CStep 3 Homework繼續(xù)復(fù)習(xí)本單詞的課本內(nèi)容，及時(shí)鞏固任未掌握的內(nèi)容。致力于打造全網(wǎng)一站式需求,為大家助力來(lái)源網(wǎng)絡(luò)僅供參考?xì)g迎您下載我們的文檔21.