【正文】 s they will hear some interesting inventions. 1. Look at the pictures in 2a. Discuss the things what they are used for. 2. Play the recording for the Ss to listen and number the pictures. 3. Play the recording again to check the answers. Work on 2b: 1. Let Ss read the chart below. Explain some main sentences for the Ss. Make sure they know what to do. 2. Play the recording for the Ss to fill in the blanks. 3. Play the recording again to check the answers. 4. Listen again and fill in the blanks. Ⅶ . Pair work (2c) 1. Tell Ss to make conversations using the information in 2b. Make a model for the Ss. A: What are the shoes with special heels used for? B: They are used for changing the style of the shoes. 2. Let some Ss make conversations using the information in 2b. 3. See which group does the best. Ⅷ . Roleplay(2d) 1. Read the conversations and Let Ss read after the teacher. 2. Explain some new words and main points in the conversation. 3. Ask Ss to roleplay the conversation in groups. X. Language points 1. Well, you do seem to have a point… have a point 有道理 . I admit (that) you have a point. 我承認你有理。 She was thinking about her childhood days. 她正回想她的童年時期。 I want to think it over. 我想仔細考慮一下這件事。 3）通過閱讀提高學生們的閱讀能力。 二、 教學重難點 1. 教學重點： 1) 掌握本部分出現(xiàn)的生詞和詞組，達到熟練運用的目標。 2) 理解并運用所學的詞匯及表達方式。 4. 最后，教師讓部分學生回答答案，并校對答案。 ① It was first drunk nearly 5, 000 years ago. ② It was invented by accident. ③ Lu Yu. ④ It’s about how tea plants were grown and used to make tea. ⑤ It is believed tea was brought to Korea and Japan during the 6th and 7th centuries. Tea didn’t appear until around 1660 in England. 4. 讓學生讀一下自己的答案，并改正 答案。 4. 如果不能直接填上，可以 再去閱讀短文，在相關的內容處，再仔細進行閱讀，找到相關信息，并完成句子。 3. boil v. 煮沸；燒開 . Boil the potato for 20 minutes. 把土豆煮 20 分鐘。 ② 作不及物動詞，意為 “剩余 ”。 6. national adj. 國家的 。 . Her sister’s marriage took place at 8:00 today. 她姐姐的婚禮今天八點舉行。 . It is said that thirteen is an unlucky number in many Western countries. 據(jù)說在許多西方國家 13 是個不吉利的數(shù)字。該書共 分三卷十節(jié)，全面敘述了茶葉生產的歷史，源流，生產技術以及飲茶 技藝和茶道原理，享有 “茶葉百科全書 ”之美譽。 4) 掌握主動語態(tài)變被動語態(tài)的方法，并通過不同方式的練習，來熟練運用。 2. 教學難點： 1) 一般過去時態(tài)的句子變?yōu)楸粍诱Z態(tài)。 It ______ _________ in 1893. ③ 它是由誰發(fā)明的？ ______ _____ it invented ______? ④ 它是由惠特科姆 ?賈得森發(fā)明的。 The telephone _____ ________ _____ Alexander Graham Bell in 1876. ⑩ 貝爾于 1876 年發(fā)明了電話機。主動語態(tài)表示主語是動作的執(zhí)行者，而被動語態(tài)則表示主語是動作的承受者。如： Trees were planted last spring. 去年春天種了樹。 . English is spoken all over the world. 全世界都在說英語。 They put off the meeting because of the weather. The meeting was put off because of the weather. 會議因天氣的緣故被推遲了。 What happened to Mr. Brown? 布朗先生發(fā)生了什么事？ Ⅳ . Exercises 練一練 將下列句子變?yōu)楸粍诱Z態(tài)。 Somebody stole my camera from my hotel room. → My camera was stolen from my hotel room. 學生們自主將其他三個句子變成被動語態(tài)。 3. 逐句進行分析推敲，然后分析句子的時態(tài)及語態(tài)，用適當?shù)男问教羁铡?) 5. were eaten, liked (前一句中，餅干是被孩子們吃掉了，故應用被動語態(tài)；后一句中，孩子們喜歡這些餅干，則是主動語態(tài)。 3. 結合句子的時態(tài)，填上正確的形式。 二、 教學重難點 1. 教學重點： 1) 掌握本課時出現(xiàn)的生詞及用法。 三、教學過程 Ⅰ . Warming up 1. Let Ss watch an interesting picture. 2. Ask some questions about them. 1. What did they eat? S1: Ice cream. 2. What did the big dog think of the icecream? S2: Sweet, cool, and delicious! Well let’s look at some other delicious food, please. Ⅱ . Talking Work on 1a 1. Tell Ss that the words in the box describe how food can taste. Write them under the correct pictures. Some pictures have more than one word. 2. Ss work with their partners and try to write some proper words under the pictures. 3. Let some Ss read their answers. Try to remember the new words. Work on 1b 1. Let some Ss read the adjective words in the box. Make sure they all know the meaning of each word. 2. Ss discuss with their partners. Try to write the name of a different food after each word. Learn the new words together: Ⅲ . Listening Work on 1c 1. Tell Ss the conversation is about how the potato chips were invented. The story is very interesting. 2. First, let one Ss read the sentences in 1c. Make sure they know the meaning of each sentence. 1. Potato chips were invented by mistake. 2. They were invented in 1863. 3. The customer thought the potatoes were not thin enough. 4. The customer said they were not salty enough. 5. Gee wanted to make the customer happy. 6. The custom was happy in the end. 3. Play the recording for the Ss. Listen for the first time. Play the recording again and judge T or F. Keys: T, F, T, F, F, T 4. Listen and answer the questions. 1. Who invented potato chips? 2. When were they invented? 3. What did the custom order at the restaurant? 4. What did the custom think of the potato chips Gee cooked at first? 5. How did Gee cook the potatoes then? Work on 1d 1. Let Ss read the article in 1d first. Tell Ss to listen again and fill in the blanks with the right words. 2. Play the recording again for the Ss to listen and write the words. The History of Potato Chips Do you know how potato chips were invented? Potato chips ____________ by a cook called Gee Crum. They were invented in ____. Gee Crum cut the potatoes really, really ____ and then cooked them for a long time until they were _____. Finally he put lots of salt on them so they were ____. Keys: were invented, 1853, thin, crispy, really salty Ⅳ . Pair work 1. Work in pairs. Make a conversation about the invention of potato chips. Use the information in 1c and 1d. 2. Ask some pairs to act out their conversation in front of the class. Ⅴ . Discussion Show some pictures of playing basketball. Ask Ss some questions about basketball games. Discuss the sport with your partner and share your ideas with the class. . T: Do you like basketball? (Wh