呂海鵬

一、教學(xué)目標(biāo)

1.通過(guò)本課時(shí)的學(xué)習(xí)，85%的學(xué)生能將課文讀熟、讀順，并且對(duì)該課文有較好的理解。

2. 通過(guò)學(xué)習(xí)本課，使學(xué)生充分運(yùn)用略讀和掃讀等技能來(lái)提取文章的主旨、各段段意、文章細(xì)節(jié)等要點(diǎn)，使學(xué)生的閱讀和理解能力有所提升，以便學(xué)生利用這些能力閱讀其他文章。

3. 通過(guò)閱讀和理解關(guān)于發(fā)明的文章，使學(xué)生對(duì)該話題類文章產(chǎn)生興趣，并增加學(xué)生對(duì)英語(yǔ)的學(xué)習(xí)熱情。

二、教學(xué)用具

星卡，每組5張圖片（用于排序環(huán)節(jié)），每組5張紙條（上面分別寫著對(duì)應(yīng)5張圖片的句子，用于排序環(huán)節(jié)），每組一大張紙（用于排序環(huán)節(jié)），每組一支固體膠，一個(gè)帶著4張判斷正誤句子紙條的信封，一個(gè)帶4張問(wèn)題簽的信封，一個(gè)真空吸塵器模型，多媒體，PPT。

三、教學(xué)過(guò)程

1. Pre-reading

1.1 分組并確定獎(jiǎng)勵(lì)規(guī)則 （5 minutes）

There are about 40 students in the class. The teacher is supposed to divide the students into 10 teams according to their English ability. And in each team there are 4 students who have different English abilities， 1 top student with a high ability（No.1 in the team）， 2 students with an average ability（No.2 and No.3 in the team） and 1 student with a low ability（No.4 in the team）. For one question， if he answers it correctly， the number of stars he will get is his member number. For example， if he is No.1 in the team and answers a question correctly， he will get only 1 star. But if he is No.4 in the team， he will get 4 stars！ The rule of reinforcing should be team-oriented. The final team score is the number of all the stars all the team members in the team get. The team getting the most stars will get a surprising prize from the teacher.

【活動(dòng)說(shuō)明：將學(xué)生按照英語(yǔ)水平進(jìn)行分組，每組4名組員。確定獎(jiǎng)勵(lì)規(guī)則，正確回答問(wèn)題后，按照組號(hào)獎(jiǎng)勵(lì)，如：1號(hào)組員回答正確得到1張星卡，4號(hào)組員回答正確就能得4張星卡，小組星卡數(shù)等于各組員星卡數(shù)之和，最后優(yōu)勝組和個(gè)人獲得獎(jiǎng)勵(lì)。這種方式使大部分學(xué)生全程努力跟住各個(gè)環(huán)節(jié)和課堂節(jié)奏?！?/p>

1.2 暖身游戲 （2 minutes）

After teams are formed， the teacher call any member in any team and the student called should stand up quickly. For example， the teacher says， “No.3 in Team 2！” Then the corresponding student should stand up quickly saying “Im here！”.

【活動(dòng)說(shuō)明：教師隨機(jī)叫到任一組里的任一組員，組員起立，這要求學(xué)生必須精神集中。】

1.3 討論3個(gè)常見的已有發(fā)明（3 minutes）

The teacher shows three common inventions in PPT， the bulb， the plane and the sunglasses. Discuss in teams Two questions about the three inventions.

What is it？ Why was it invented？

After the discussion， the teacher shows the picture one by one. The students raise their hand to grab the chance to answer the two questions. For example， the student could answer like this.

S1： It is a bulb. It was invented to give people light in the dark.

S2： It is a plane. It was invented to make sure that people fly in the sky.

S3： It is a pair of sunglasses. It was invented to prevent our eyes from the sun.

Whats more， there could be idea sharing and contradiction with each other in this step.endprint

【 活動(dòng)說(shuō)明：以討論電燈泡、飛機(jī)、太陽(yáng)鏡這些熟悉的發(fā)明來(lái)導(dǎo)入本課話題，使學(xué)生接受起來(lái)不突兀。】

1.4 討論Flowbee和發(fā)明者Rick Hunt的圖片 （6 minutes）

The teacher shows another picture on PPT in which Rick Hunt is cutting his hair with his invention called Flowbee. three questions are put forward for students to discuss in teams.

What is the machine the man is holding？

What is the man doing with the machine？

Who do you think is the man？

After the discussion， students can share their ideas in class. There must be different answers.

S1：The machine is a telephone. The man is trying to act as an emperor because the telephone looks like an emperors hat. I think the man is an actor.

S2：The machine is a vacuum cleaner. I also think he is acting as an emperor， but I think he is a worker.

......

The teacher and all the students have heard a number of answers. In order to find out the correct answer， students have to read the passage carefully with the three questions.

T：Lets read the passage silently with the tape， trying to find out the answers to the three questions.

【活動(dòng)說(shuō)明：學(xué)生對(duì)圖片進(jìn)行討論，實(shí)際上就是預(yù)測(cè)，激發(fā)學(xué)生的發(fā)散思維，形成多種答案，最后帶著疑問(wèn)進(jìn)行文章閱讀。此外，學(xué)習(xí)小組中3號(hào)和4號(hào)組員由于獎(jiǎng)勵(lì)規(guī)則積極性比較高，參與度高。】

2 While-reading

2.1 公布上一環(huán)節(jié)所布置問(wèn)題的答案（2 minutes）

The teacher asks three students to tell the answer to each question. Three students answer like this， respectively，

The machine is Flowbee. The man is cutting his hair with the Flowbee. The man is Rick Hunt who invented the Flowbee.

【活動(dòng)說(shuō)明：給學(xué)生一個(gè)積極的反饋，使學(xué)生繼續(xù)專注于該課文?！?/p>

2.2 隨讀課文（2 minutes）

The teacher asks the students to read with the tape aloud then plays the tape. The students should try to catch up with the tape and pay attention to the pronunciation， intonation and stress of each word when reading.

T：Now read with the tape aloud and try to catch up with the tape. When reading， youre supposed to pay attention to pronunciation， intonation and stress of each word. （Then play the tape. The students begin to read with the tape aloud.）

【活動(dòng)說(shuō)明：這是學(xué)生第一次通篇朗讀全文的環(huán)節(jié)，學(xué)生在隨讀過(guò)程中隨時(shí)修正他們語(yǔ)音、語(yǔ)調(diào)、重音等方面的錯(cuò)誤，此環(huán)節(jié)也讓學(xué)生對(duì)文本有了一個(gè)初步的理解?！?/p>

2.3 播放磁帶跟讀（8 minutes）

After reading with the tape， the students are asked to read each sentence after the tape. In other words， the passage is played one sentence by one sentence and the students should read each sentence exactly.

T：Now lets read after the tape， one sentence by one sentence. Remember to correct your mistakes with pronunciation， intonation and stress of each word.endprint

【活動(dòng)說(shuō)明：學(xué)生對(duì)每句話反復(fù)朗讀，對(duì)每個(gè)詞都要注意語(yǔ)音、語(yǔ)調(diào)和重音，這是學(xué)生糾正錯(cuò)誤的核心環(huán)節(jié)。】

2.4 開展組內(nèi)和組間的朗讀競(jìng)賽（12 minutes）

The students are asked to read the passage in their own team one by one and select the best one， with the least mistakes and the highest reading speed， to stand out， which is the competition within teams. Then the best players from each team will get 2 stars and have a competition with each other， which is the competition between teams. The champion in the class will get 4 stars.

T：Now read in teams one by one. After one finishes reading， help him or her correct his or her mistakes. The best one in your team stand out. Here we go！

（After all the best players from each team stand out，）

T：You are the champion from your team and you have got 2 stars. Now you are against other champions from other teams. Who will be the final champion in our class who will get another 4 stars？ You may PK with each other. Here we go！

T：Ha！ XXX is the final champion！ Lets give him / her a big hand！ Congratulations to you， XXX！

【活動(dòng)說(shuō)明：通過(guò)競(jìng)賽，激發(fā)學(xué)生組內(nèi)朗讀的熱情，學(xué)生心中“比拼”的勁頭被調(diào)動(dòng)，各組第一名之間的PK也將該活動(dòng)推向高潮，各組第一名獲得少量星卡，最終的贏家獲得額外的星卡。】

2.5 排序 （8 minutes）

In this activity， each team is demanded to use a big piece of paper， the 5 slips of paper with sayings on them， the 5 pictures and the glue stick. The students are asked to put them in the correct order and try to introduce how Flowbee was invented.

T：Work in teams， stick each slip of paper on its corresponding picture， then stick the slips of paper in the correct order according to the story of Flowbee on the big piece of paper. And then， practice introducing how Flowbee was invented with the pictures， trying to make your introduction exact， brief and fluent. Now you may begin.

T：Now the team leaders stick your paper on the blackboard！

T：Who wants to introduce how Flowbee was invented？

（Maybe only three students can come to the front to introduce because of the limited time.）

【活動(dòng)說(shuō)明：各組內(nèi)組員先把句子紙條粘到對(duì)應(yīng)描述的圖片上，再把圖片按照Flowbee被發(fā)明的故事的順序粘到大白紙上，再按照組內(nèi)訓(xùn)練排好的序進(jìn)行故事復(fù)述，介紹Flowbee被發(fā)明的前因后果。準(zhǔn)備好的組將自己的大白紙（成果）粘到黑板上，并進(jìn)行介紹。該活動(dòng)加深了學(xué)生對(duì)篇章的整體理解以及訓(xùn)練了學(xué)生英語(yǔ)口語(yǔ)表達(dá)能力?！?/p>

2.6 正誤判斷 （5 minutes）

Firstly the teacher prepares 4 sentences for students to judge whether they are true or false. These 4 sentences are，

① Flowbees were invented in 1987.

②Rick Hunt invented the Flowbee by adding some parts to a common vacuum cleaner.

③Flowbees are sold only in the United States.endprint

④The first Flowbees were sold in a market near Hunts house.

Each sentence is written on one slip of paper， so there are 4 slips of paper in total for each team and these 4 slips are put in an envelope.

Students should open the envelope and extract any one slip from the envelope. Then， the students go back to the passage and find out whether the sentence in hand is true or false， more importantly， students are called to underline the original sentences as the evidence. Then the teacher asks the each team to have a discussion to report his or her own sentences， to tell others whether it is true or false and where he or she finds the answer in the passage.

S：My sentence is “Flowbees were invented in 1987.” It is true. I found it from several sentences of paragraph 2 and 3. “In 1987， Rick Hunt was working in his wood shop. As his hair was cleaned by the vacuum， he got an idea. Some special parts were added to a common vacuum. In this way， the first Flowbees were built.”

The teacher then calls four volunteers to report his or her result to the class in order to check the answers.

【活動(dòng)說(shuō)明：正誤判斷設(shè)計(jì)掃讀并對(duì)細(xì)節(jié)信息加以提取和判斷。該活動(dòng)增加學(xué)生從文章中搜索信息的趣味性?！?/p>

2.7 更多細(xì)節(jié)搜索 （10 minutes）

Firstly the teacher prepares 8 questions in total according to the passage details.

① When was the Flowbee invented？

② What is the Flowbee？

③ Who invented it？

④ What idea did he get when his hair was cleaned by the vacuum？

⑤ What did he do with a common vacuum to make the first Flowbee？

⑥ In what ways did he sell his inventions？

⑦ How many Flowbees were sold in America over the next ten years？

⑧ What is the main idea of the passage？

These 8 questions are written on both sides of a slip of question sheet. And 4 sheets are for one team， each sheet for one member. For each sheet of question sheet， on one side， the 2 questions are set for its corresponding team members ability， on the other side， the rest 6 questions which are for the other 3 members are there.

T： Question 7， No.3！

S： How many Flowbees were sold in America over the next ten years？ More than a million. I found it in the first line of the last paragraph， “More than a million Flowbees were sold in America over the next ten years.”

【活動(dòng)說(shuō)明：不同的組員拿到的是不同的題簽，根據(jù)問(wèn)題的難度進(jìn)行分配。正面是自己的題目，背面是其他組的題目，這些細(xì)節(jié)問(wèn)題需要學(xué)生運(yùn)用掃讀技巧來(lái)搜索、提取，獎(jiǎng)勵(lì)制度促使學(xué)生盡快保質(zhì)保量地完成自己的問(wèn)題，再完成其他習(xí)題，使能力進(jìn)一步提升?！?/p>

3. Post-reading

角色扮演 （15 minutes）endprint

The teacher asks each team to select one to act as Rick Hunt. Practice a role play showing the story of Rick Hunt and his Flowbees using the vacuum cleaner model prepared before the class. Then each team think of ideas about the play and select one person to act， helping him or her deciding what to say， what movements to make and what expressions to have for each stage of the story （the play） to make sure that their team can act it out well. After the preparations， the teacher calls some volunteers to act in front of the class and each team and the teacher then evaluate each play. All the members participating in the role play will get 1 star. The member getting the highest marks will get 5 stars for their team， the one getting the lowest marks will only get 1 star for their team， respectively.

【活動(dòng)說(shuō)明：該活動(dòng)使學(xué)生親自體驗(yàn)文章中發(fā)明者的故事，通過(guò)自身演繹，使學(xué)生更進(jìn)一步加深對(duì)故事的理解和掌握，通過(guò)表演時(shí)的神態(tài)、動(dòng)作、語(yǔ)言，教師能看出學(xué)生到底對(duì)故事各方面掌握的程度?！?/p>

四、板書設(shè)計(jì)

When were they invented？

Who invented them？

How were they invented？

How were they sold？

Sometimes， great ideas come from surprising places.endprint