2022年(秋)三年級英語上冊 Unit 2《Friends》教案 北師大版

上傳人:xt****7 文檔編號:88986409 上傳時間:2022-05-12 格式:DOC 頁數(shù):21 大?。?31.50KB
收藏 版權申訴 舉報 下載
2022年(秋)三年級英語上冊 Unit 2《Friends》教案 北師大版_第1頁
第1頁 / 共21頁
2022年(秋)三年級英語上冊 Unit 2《Friends》教案 北師大版_第2頁
第2頁 / 共21頁
2022年(秋)三年級英語上冊 Unit 2《Friends》教案 北師大版_第3頁
第3頁 / 共21頁

下載文檔到電腦,查找使用更方便

9.9 積分

下載資源

還剩頁未讀,繼續(xù)閱讀

資源描述:

《2022年(秋)三年級英語上冊 Unit 2《Friends》教案 北師大版》由會員分享,可在線閱讀,更多相關《2022年(秋)三年級英語上冊 Unit 2《Friends》教案 北師大版(21頁珍藏版)》請在裝配圖網(wǎng)上搜索。

1、2022年(秋)三年級英語上冊 Unit 2《Friends》教案 北師大版 2022年(秋)三年級英語上冊 Unit 2《Friends》教案 北師大版 課 題 Unit2 Friends Lesson 1 This is Danny Deer. 教學目標 1.The student can be understand the dialogue what’s mean. 2.The students can use the sentence “This is…”to introduce someone. 3.The students can be read the

2、dialogue. 教學重點與難點 How can use “This is….” 教學準備 Word cards 教 學 流 程 動態(tài)修改部分 Step 1: warm up 1. Hold up mask for Lulu. Say, “This is Lulu.” Have the children say Lulu. Repeat this for Danny. Repeat several times, and have the children say the names. Step 2: Presentation 1. T: Hold up

3、mask for Mocky and say, “This is Mocky.” 2. Have the children repeat the sentence after me. 3. Repeat the procedure for all the other masks. 4. Hold up each of the masks in turn, and say, “This is …” S: Make it. 5. At last, hold up a mask but say nothing. Have the children make a sentence of t

4、heir own. 6. Ss try to introduce their classmates to T T: Very good. Ok, you know my name, but I don’t know your name, yes? Can you introduce your classmates to me. S: This is … Step 3: Practice and consolidation 1. Listen to the tape, and point to the story. 2. T: Ask these questions about th

5、e pictures. Picture 1: Who can you see in the picture? Picture 4/5: Who do they meet? 教 學 流 程 動態(tài)修改部分 3. 引出本課課文的人物 T: You are so clever, last week we have known some friend’s name. They are Mocky, Ann, Cathy, Uncle Booky and so on, yes? Now there are two new friends, please look at my pict

6、ures; they are Danny Deer and Lulu Leopard. T: (拿出面具) OK, so this is Danny Deer, this is Lulu leopard. This isn’t Danny Deer, this isn’t Lulu leopard. Can you understand me? T: one day, Ann, Ken and Mocky go outside, Do you want to know what happened? 出去郊游.大家想知道發(fā)生了什么事嗎? T: ok, now let’s look at

7、the screen. (Play the flash) This is Danny deer This is Lulu Leopard e on. Let’s go. Super. Hello. Danny Deer This is Danny Deer, Nice to meet you. What a lovely Deer! Let’s go. Hello, lulu leopard Hi, lulu, I’m Mocky Oh, no, This isn’t Lulu! This isn’t Lulu. T

8、: (explain e on and super) 1 listen and repeat 2 point the sentences and read Step 4. Try to read the story. Step 5. Homework 1. Read the story for two times 2.Explain that you want the class to tell their families about the new characters, Danny and Lulu. 課 題 Unit2 Lesson2 It’

9、s a tiger. 教學課時 1 教師 蔡燕瑜 教學目標 1.Understand the dialogue what’s mean. 2.The students like to learn English. 3.The students can read the dialogue very expertly. 教學重點與難點 Review: How can use “What’s your name?” very expertly in dialogue. And answer it. 教學準備 Word cards 教 學 流 程 動態(tài)修改部

10、分 Step 1: Warm up Review: “Hello! What’s your name?” “ My name is …” Step 2:Presentation T: “This is … “ S: Introduce your good friend’s name each other. Step 3:Practise 1. Learn the sentence “It’s a tiger.” T: Show a picture to the Ss. Make sure all the children can see it. Say, “This is

11、 a tiger. It’s a tiger.” 1. Ss repeat. 2. Use different kinds of way to practice it. 4. Play the tape and touch each picture as you hear the words. 5. Have the children look at the pictures and read after the tape. 6. Act it out. Step 4 Talk together 1. Learn the new words: cow, panda, d

12、eer, horse 用剛學過的句型引出上面的動物 2.師帶讀,用游戲、開火車、分組等方式操練 3.生用This is …句型介紹上面的動物。 Step 5. Let’s sing. 教 學 流 程 動態(tài)修改部分 1. Listen to the tape 2.Replay the tape and have the children sing the song aloud Step 5 Homework: Have the children open their books at page 19. Explain that you want t

13、hem to: Color all the Ee letters in one color Color letters Ff, Gg, Hh, Ii in different colors. 課 題 Unit2 This is Danny Deer Lesson3 教學課時 1 教師 蔡燕瑜 教學目標 1.Use the sentences “What’s this? It’s a … ” 2. Make sure that the Ss can read the story. 3.The students can use “Thi

14、s is …. ”to introduce their good friends. 教學重點與難點 Emphasis sentence: What’s this? It’s a …. 教學準備 Tape,cards, 教 學 流 程 動態(tài)修改部分 Step 1: Warm up 1. Chant: “An apple for you.” 2. Introduce your good friend’s name each other. 3. Read the text of Lesson 2 Step 2: Presentation 1. T show the

15、 cards: dog, cat, apple, tiger… 2. T: What’s this? Ss: It’s a 引入新句型“What’s this? It’s a ” Step 3. New Lesson 1. 出示卡片“What’s this? It’s a ” 2. 用不同的方式操練(分男女生,分組,問答,開火車等。) 3. 學習單詞a cow, a panda, a horse, a deer(Use different ways to practice: Scissors,paper, stone, high and low voice )

16、 4. Listen and Guess (Student book page 18) (1) T : “Open your books.”and listen carefully and point the picture in their books. (2) Have the children repeat the words as they point to the picture in their books. 5. Listen and guess. Step 4: Consolidation 教 學 流 程 動態(tài)修改部分 Step 4: C

17、onsolidation 1. Game Time 2. Show Time 3. Do the exercises of Activity Book Step 4:Consolidation Review the second letter: a, b, c, d. Learn the new letter: e, f, g, h, i. Replay the tape, and have the children point to the matching pictures in their book. S: replay the tape and have

18、the children say the word aloud. : Repeat the procedure that was used to introduce the letter Ee and the word eggs. Step 5 Homework: Have the children open their books at page 19. Explain that you want them to: Color all the Ee letters in one color Color letters Ff, Gg, Hh, Ii in different colo

19、rs. 課 題 Unit2 Friends Lesson 4 Get it Right. 教學課時 1 教師 蔡燕瑜 教學目標 1.能夠認讀書上出現(xiàn)的單詞. 2.掌握字母E/e至F/f的讀寫方法. 3. The students like to learn English. 教學重點與難點 掌握字母E/e至F/f的讀寫方法。 教學準備 Tape,cards 教 學 流 程 動態(tài)修改部分 Step 1.Warming up Sing a song. Ask and answer 3.讓同學和自己的

20、朋友一起練習上次上課的對話,并上臺來表演。同時讓同學評出最好的組,給予其獎勵。 Step 2. New Lesson 1.Review the letters from Aa to Dd 2. Show the letters from Ee to Ii 師帶讀,注意升降調,認讀 3.學習單詞eggs, flowers, girl, hat, ice 4. 師在黑板上書寫字母E同時讓同學觀察書寫順序,完成后,讓同學跟著老師一起用手指在空中臨摹。之后,讓同學臨摹書上第20頁的大寫E。同樣的方法完成小寫e和其它字母。 5.Trace and copy. Tell the c

21、hildren that they will finish tracing over the letters. Step 3. Color the letters 讓同學給19頁下面的圖上色,找出藏在圖中的字母 Step 4. Listen for E, F, G, H, and I Step 5. Homework 1. Copy the letters 2. Read the story. 課 題 Unit2 Friends Lesson 5 Have a try. 教學課時 1 教師 蔡燕瑜 教學目標 1. Ss can read

22、 the chant. 2. 通過游戲和練習讓同學能夠知道并總結本單元的重點句型。 3. Understand the sentence how can use. 教學重點與難點 Emphasis sentence: How can use the sentence:This is… 教學準備 Word cards 教 學 流 程 動態(tài)修改部分 Step 1 Warming up 1.Chant:《Up and down》 2. Sing a song: 《The Monkey》 3. Show the picture of the words:eggs

23、flowers girl hat ice elephant goat fire hand ice-cream then ask to read one by one----Play games ①請一學生到講臺,全班看老師做動作,說出其單詞,這學生指出該圖片。 ②大嘴巴③大聲、小聲 Step 2 Review 1、I can introduce them 1)Show the powerpoint,say and copy on the blackboard:This is… 2) Ask some to say: This is… 3) Say in the group.(組

24、長負責打√) 4) Game: (蒙著一同學眼睛, 叫一同學來到講臺,告訴蒙眼的同學該同學是第幾組的,然后讓該同學來猜: This is…,其它同學說:Yes或No) 2. I can say the following. 教 學 流 程 動態(tài)修改部分 1)Show the powerpoint,say the words one by one. 2) Say in the group.(組長負責打√) 3) Game: ①聽命令Show me a …,拿出相應的東西。②看誰眼睛快。③Guessing game Step 3. Learn the chant 1

25、. Listen to the tape carefully, and point to the sentence. 2. S: sing after the tape. I think the children will enjoy learning this song. T: Repeat the tape. S: sing it again. Learn to say sentence by sentence. 3. Read and match. Step 4. Homework 1. Listen and read the story. 2. Copy the

26、 letters 3. Do the exercises of Activity Book 課 題 Unit2 Friends Lesson 6 Round Up. 教學課時 1 教師 蔡燕瑜 教學目標 1. 學生能夠用This is…介紹教材上的人物和猜出我們班的某個同學。 2. 學生通過觀察動作,復習本單元所學習的單詞。 3.會說“Uncle Booky’s Storytime” 教學重點與難點 Emphasis sentence: How can use the sentence:This is… 教學準備 Word

27、 cards 教 學 流 程 動態(tài)修改部分 Step 1 Warming up 1. Say the chant: A dog says “Woof, Woof” Step 2 Review 2. Introduce them. (Studunt Book on Page 24) T: Who’s that? Ss: Ken, Mocky… Ss use “This is… ”to introduce the characters. 3. Show the cards and ask: What’s this? 4. Trace the letters and re

28、ad the words aloud. 5. Match the letters. Step 3. Self assessment Sum up: 指導填寫好“我的自評表” My Notes 我的記錄 我能用英語介紹別人 ★★★★★ 我喜歡本單元的故事 ★★★★★ 我喜歡本單元的歌曲和歌謠 ★★★★★ 我能認寫字母E-I ★★★★★ 我能根據(jù)教師的指令做動作 ★★★★★ Step 4. Homework: 復習本單元的知識。 附送: 2022年(秋)三年級英語上冊 Unit 4《My Family》教案 北師大版 2022年(秋)三年級

29、英語上冊 Unit 4《My Family》教案 北師大版 課 題 Unit4 My Family Lesson 1 This is my family. 教學目標 1.能聽說認讀家庭成員的名稱:father(dad), mother(mom),grandfather(grandpa),grand mother(grandma)。 2.能靈活運用This is my family/mom/friend…句型。 3.Enable the Ss to use the new words. 教學重點與難點 Know the meaning of the contextual.

30、 教學準備 Word cards 教 學 流 程 動態(tài)修改部分 Step 1. Warming up: 1.Sing a song:“Boy and Girl” Step 2.Presentation: 1.Greetings:Hello, boys and girls. How are you﹖ How old are you﹖ Where are you from﹖ 2.T:Who’s this boy/girl﹖引導學生回答P1:He/She is ××. T:Is he your friend﹖ 若生回答Yes,示意學生介紹自己的朋友 P1:This

31、 is my friend ××. T:Nice to see you. P2:Nice to meet you too. 3.Quick Response:Who’s this boy/girl﹖ He/She… 4.課件出現(xiàn)許多名人如鄧亞萍、魯迅、喬丹、周恩來等,引出Who’s that man/woman﹖教學該句型及回答He/She is…。 Step 3.Activity 1:現(xiàn)在的快樂家庭 1.根據(jù)課件出現(xiàn)教師現(xiàn)在的家庭照,讓學生觀察、猜測并回答。 T:Who’s this woman﹖ P1:She is Miss Mao. 教 學 流 程 動態(tài)修

32、改部分 T:Yes. It’s me. T:Who’s this man/woman﹖ P1:He/She is your father, mother…。 2.Guessing game: He is my father’s father, who is he﹖ She is my mother’s mother, who is she﹖ He is my mother’s brother, who is he﹖ She is my father’s sister, who is she﹖ My father has a daughter, but not me, wh

33、o is she﹖ 3.①師手指現(xiàn)在的家庭照總述: This is my father/mother/sister/brother. This is my family. Happy, happy family, This is my grandpa/grandma/uncle/aunt. This is my family. Big,big,family. ②Sing a song:“Happy Family” Step 4. Activity 2:過去的快樂家庭 1.根據(jù)課件出現(xiàn)一個小孩照片,教師問答并介紹小時候的自己。 T:Look, who’s this girl﹖O

34、h, It’s me.I’m 5/short/fat… 2.老師用幻燈片逐張展示學生上交的他們幼兒時的照片,讓學生猜測,并運用以前所學的知識,談談小時候的自己。 T:Look, who’s this boy/girl/baby﹖ P1:He/She is ×××. P2:Oh, It’s me. I’m 1/fat/short/lovely… 3. 根據(jù)課件出現(xiàn)教師過去的家庭照,教師再次示范介紹自己的家庭。 T:This is my father/mother/sister/brother. This is my family. Happy, happy family. Ho

35、w about you﹖ 教 學 流 程 動態(tài)修改部分 Step 5. Consolidation 1. Chant:Let’s go, boys. ①先齊說chant1遍,生跟在師后面邊走邊唱。 ②再聽chant2次,第1次邊聽邊抽家庭成員卡片;另一次,邊聽邊傳報紙,圍裙,拐杖等道具。 2.Act: T:Now let’s see who plays father﹖ Show your action. P:I’m father. (邊說邊模仿爸爸的模樣,如看報紙等) T:Who plays mother… 3.(1)組成若干“臨時家庭”。 T

36、:Now you’re Family No 1, you’re Family No. 2,… (2)師示范一組生用上各道具,介紹 P1:Hello, I’m ××× This is my family. This is my father… We are very happy. 并示意“Father”“Mother”等與其他學生問候。 (3)小組活動 (4)各家庭去介紹自己的家庭,運用句型This is… Who’s that man…﹖ Step 6. Activity 4:情感教育 T:This is my Father/mother/sister/brother.

37、 This is my family. I love my father. I lover my mother. They love me too, we are all happy. Happy, happy, for ever, Song:“Happy Family”結束。 Step 7. Homework    課 題 Unit4 Family Lesson 2 That’s my sister, Kate. 教學課時 1 教師 蔡燕瑜 教學目標 1. 能聽說認讀家庭成員的名稱:aunt, uncle, sister, brot

38、her 2.能靈活運用That’s …句型。 3.會讀故事。 教學重點與難點 1. 運用句型:That’s my … 向別人介紹自己的家庭成員 2.區(qū)分:aunt, uncle, sister, brother 教學準備 pictures 教 學 流 程 動態(tài)修改部分 Step 1. Review 1.教師出示自己的照片,進行介紹:This is my family. This is my father/mother. 2. 生拿出自己的家庭照介紹自己的一家人。 Step 2. New lesson 1. 由上面的句型引出本課的單詞sist

39、er, brother等。 2.到操練此單詞,讓學生拿著自己的家庭照片并說 This is my family.This is my sister/brother. 3. 用不同方式操練此單詞,大小聲,笑臉與哭臉等。 師生問答:老師指著其中一人問:Who’s this? 4. 老師讓學生小組合作自由讀單詞. 5. 用同樣的方法學習anut, uncle. 6. 課件出示chant. Brother,brother. He is my brother . Sister, sister, She is my sister. Aunt, aun

40、t, she is my aunt. Uncle, uncle, he is my uncle. 教師有節(jié)奏的拍手,示范用Chant記憶單詞. Step 3. Text Learning 1、聽錄音 第一遍:學生認真聽,對課文的整體故事內容有所感知。 教 學 流 程 動態(tài)修改部分 第二遍:學生帶著問題“How many people are there in Sam’s family?”聽→抽生回答問題。 第三遍:跟讀錄音。 (設計意圖:讓學生由總體再到詳細不同層次的聽錄音,逐步幫助學生培養(yǎng)聽的技能)。 2、老師再次領讀復習

41、生詞:“brother, sister……等,再帶領學生理清Ann家庭成員之間的關系。 3、學生再聽錄音,模仿跟讀課文→全班齊讀課文。 (2、3的設計意圖:以免有差生對生詞不熟,再次復習聽錄音,提高全班的學習質量)。 4、四人一小組分別介紹自己的全家福,老師去小組做個別輔導,抽3—5位學生上臺介紹自己的全家福,給介紹的好的學生發(fā)小貼畫給予獎勵和表揚。 5.做一個猜一猜的游戲:老師隨便拿過一張孩子的照片,用“Is this your …?”來提問,引導學生用“Yes 或No” 來回答。學生之間互相練習。 Step 4. 課堂小結:本節(jié)課學習了家庭成員的稱謂,單詞較多,課后要多加鞏固

42、。 Step 5.家庭作業(yè):1.回家用英語稱呼自己的家人; 2.課后用英語向自己的好朋友介紹自己的家人。 課 題 Unit4 Ann’s family Lesson3 教學課時 1 教師 蔡燕瑜 教學目標 1. Get the Ss to learn the new words: grandfather, grandmother, aunt, uncle 2. Enable the Ss to use the sentences:That’s my….. 教學重點與難點 Use the sentences

43、 教學準備 Word cards 教 學 流 程 動態(tài)修改部分 一、Organization: 1 Sing a song. 2 Greetings. 二、Revision: 三、Presentation and practice Step1, divide the class into two groups. Hold up one character mask. Have Ss in one group ask, “Who’s that?” encourage the other group to answer. “That’s (Tommy).” Rep

44、eat with the other five masks. Step2, Use the same two groups. Give one student the Ann mask and have him or her stand at the front of one group. And do the same with a student from the other group and the Ken mask. Have the first group speak Ann’s part to ask. Have the second group speak Ken’s pa

45、rt and answer. Now have Ss turn to the top of page 42. Say, “Now we can read what we said.” Step3, have Ss open their books. Explain that you will play a tape and they will hear something about Ann’s family. Play the tape one sentence at a time. Stop after each sentence. Have Ss touch the correct

46、 character in the picture. 教 學 流 程 動態(tài)修改部分 Step4, ask the class to recall the letters they have learnt. Now ask them to look at Uncle Booky’s ABC. Say, “Find the letters you know. Now look at the next letter. This is letter O.” Write the letter Oo on the board. Then say, “This is letter

47、 O. can you find the word that begins with the letter O?” Check that Ss have found it. Step5, have Ss return to page 43. Display your copy of the page. Draw Ss’ attention to the row of pictures of words beginning with Oo. Play the tape, pointing to the matching picture of each word. Now replay th

48、e tape, and have Ss point to the matching picture in their books. Replay the tape, and have Ss say the words aloud. Step6, Repeat the procedure that was used to introduce the letter Oo. Step7, Homework Color the letter Oo in one color and the others are in different colors. 課 題

49、 Unit4 Ann’s family Lesson4 教學課時 1 教師 蔡燕瑜 教學目標 1. Learn the letters from”O(jiān)o” to “Tt”. 2. Enable the Ss to read the letters fluently. 教學重點與難點 The correct writing of Jj, Kk, Ll, Mm, Nn 教學準備 Pictures cards 教 學 流 程 動態(tài)修改部分 一、Organization: 1 Sing a song. 2 Greetings. 二、Revision: 三

50、、Presentation and practice step1, review the letters that we have learnt. Display your page. Point to each picture in turn, for example Octopus, O, O, octopus. Now play the tape. As Ss listen to each word, they should point to its beginning letter. Without the tape, have Ss point to each picture

51、 in turn and say the beginning sound. Have Ss trace the letters beside each picture. Step2, Have Ss find “Touch and say” on page 45. Display page 45 of your book and read the words in the speech bubble, pointing to each word. Have Ss repeat the words as you point to each one. Tell Ss that you wi

52、ll point to the character in the picture, and they will say the words for that character. Ss could also repeat the activity in pairs or small groups. 教 學 流 程 動態(tài)修改部分 Step3, Using picture or real object to review the following words: rat, rabbit, panda. Make sure Ss can say these things w

53、hen given a picture or a real object. Use flashcards and have Ss practise reading these words. Read the rhyme to Ss, pointing to each word. Play the tape for the whole rhyme and have Ss listen and point to the words and the matching pictures on the page. Play the tape again and have Ss join in,

54、encouraging them to hum or clap with rhythm. Have Ss point to the pictures in their books as they listen to the tape again. They can also actions and act the rhyme out. Step4, Homework Tell Ss they can color the pictures for “Match Ann’s family.” 課 題 Unit4 Ann’s family Lesson5

55、 教學課時 1 教師 蔡燕瑜 教學目標 1. Say the chant fluently. 2. Review the words of this Unit. 教學重點與難點 Chant fluently. 教學準備 Word cards 教 學 流 程 動態(tài)修改部分 一、Organization: 1 Sing a song. 2 Greetings. 二、Revision: Chant it together. 三、Presentation and practice Step1, Uncle Booky’s storytime. T:

56、 we are going to listen to a story. Play the tape, ask Ss to listen to the story with their books closed. Have Ss to look for familiar words in the story. Have Ss read the story silently, encourage them to try to guess the meaning of unfamiliar words. Give them more time to listen and say. Step

57、2, another family game. This game reviews the family vocabulary presented in this Unit and the structure “That’s my __.” Divide the class into small groups. Have Ss take out their family drawings from lessen 1. Have each student in turn show their drawing and name each family member, “That’s my a

58、unt” etc. 教 學 流 程 動態(tài)修改部分 Step3, Bingo Use this game to review the character names, vocabulary, and letters introduced in Unit 4. Step4, Snap. This game reviews new vocabulary and letters introduced in Unit 1 through 4. it is best played in pairs. Ask Ss to take out their small flashcards for the words. Step5 Homework Have Ss do “Self-assessment” this part in pairs or in groups by themselves.

展開閱讀全文
溫馨提示:
1: 本站所有資源如無特殊說明,都需要本地電腦安裝OFFICE2007和PDF閱讀器。圖紙軟件為CAD,CAXA,PROE,UG,SolidWorks等.壓縮文件請下載最新的WinRAR軟件解壓。
2: 本站的文檔不包含任何第三方提供的附件圖紙等,如果需要附件,請聯(lián)系上傳者。文件的所有權益歸上傳用戶所有。
3.本站RAR壓縮包中若帶圖紙,網(wǎng)頁內容里面會有圖紙預覽,若沒有圖紙預覽就沒有圖紙。
4. 未經(jīng)權益所有人同意不得將文件中的內容挪作商業(yè)或盈利用途。
5. 裝配圖網(wǎng)僅提供信息存儲空間,僅對用戶上傳內容的表現(xiàn)方式做保護處理,對用戶上傳分享的文檔內容本身不做任何修改或編輯,并不能對任何下載內容負責。
6. 下載文件中如有侵權或不適當內容,請與我們聯(lián)系,我們立即糾正。
7. 本站不保證下載資源的準確性、安全性和完整性, 同時也不承擔用戶因使用這些下載資源對自己和他人造成任何形式的傷害或損失。

相關資源

更多
正為您匹配相似的精品文檔
關于我們 - 網(wǎng)站聲明 - 網(wǎng)站地圖 - 資源地圖 - 友情鏈接 - 網(wǎng)站客服 - 聯(lián)系我們

copyright@ 2023-2025  zhuangpeitu.com 裝配圖網(wǎng)版權所有   聯(lián)系電話:18123376007

備案號:ICP2024067431-1 川公網(wǎng)安備51140202000466號


本站為文檔C2C交易模式,即用戶上傳的文檔直接被用戶下載,本站只是中間服務平臺,本站所有文檔下載所得的收益歸上傳人(含作者)所有。裝配圖網(wǎng)僅提供信息存儲空間,僅對用戶上傳內容的表現(xiàn)方式做保護處理,對上載內容本身不做任何修改或編輯。若文檔所含內容侵犯了您的版權或隱私,請立即通知裝配圖網(wǎng),我們立即給予刪除!