七年級(jí)英語electricity課件(編輯修改稿)
2024-12-15 22:12 本頁面
【文章內(nèi)容簡介】 electricity, but we can change it into different forms of energy NO Who is looking foolish now, Benny There is a problem with the electricity in Benny’s flat. An electrician came to deal with this problem. Listen to the conversation between the electrician and Benny’s mother. Find out which things were on or off when the electricity stopped, and circle ON or OFF next to the objects. Before you listen, make sure you know the following words: Vacuum v. 用 真 空吸 塵 器 清掃 properly adv. 正確地 ,恰 當(dāng)?shù)? Iron ,燙 平 plug lights air conditioner fridge kettle washing machine television vacuum cleaner rice cooker iron ★ Language 情態(tài)動(dòng)詞 情態(tài)動(dòng)詞不能單獨(dú)作謂語動(dòng)詞，后接其它動(dòng)詞 原形做謂語，沒有人稱和數(shù)的變化。 1. 表示能夠或不能做某事用 can 或 can’t A bird can fly . Fish can’t live without water. 2. 告訴人們必須或禁止做某事用 must或 mustn’t You must hand in your homework at once. You mustn’t talk loudly in public. 3. 表示請(qǐng)求或允許做某事 may 或 can May I e in ? Can I open the door ? 4 .談?wù)撛撟龌虿辉撟瞿呈掠?should , ought to 或 shouldn’t , ought not to She should do her homework first . They ought to finish the work on time . they ought not to be late for school . ★★★ Notes : can 和 be able to的區(qū)別 : be able to 有 人稱數(shù)和時(shí)態(tài)的變化。 I can e tomorrow . I will be able to e tomorrow. 在回答 must的疑問句時(shí)，否定回答常用 needn’t 或 don’t have to表示不必，而不用 mustn’t 。 Must we stay here ? No, you need n’t . ( No, you don’t have to .) must be 表示肯定的猜測，意為“一定 ……” can’t be 表示否定的猜測，意為“ 不可能 ……” She must be a nurse . I saw her in the library just now .She can’t be here .
教學(xué)課件相關(guān)推薦
鄂ICP備17016276號(hào)-1