英語人教版八年級下冊講授2d.doc

Step 7 Work on 2d. Role play the conversation Let the students read 2d, then role play the conversations in pairs.Step 8 Language points1. -How long have you had that bike there?-I have had it for three years辨析：how long, how soon, how often, how farHow long 多久，多長（時(shí)間）。對時(shí)間段提問，如：for+時(shí)間段；since+過去的時(shí)間點(diǎn)。e.g. -How long have you worked in Beijing? -For five years.How soon 多久以后。對“in+時(shí)間段提問，常用于一般將來時(shí)”，其答語常用“in+時(shí)間段”。e.g. How soon will Mr. Li be back? -In a week. How often 多久一次，對頻率提問，其答語為：once（twice/）+時(shí)間段，always，usually等。e.g. -How often do you exercise? - Once a day.How far 多遠(yuǎn)，對距離提問，其答語是表距離的內(nèi)容。e.g. -How far is it from here to your school? - Three kilometers.辨析：for 與sincefor其后只能接表示“一段時(shí)間”的名詞性短語，可用于多種時(shí)態(tài)，表示動(dòng)作或狀態(tài)持續(xù)時(shí)間段長短。e.g. I have lived in this city for five years. 我在這座城市居住了5年了。 He usually sleeps for twelve hours every day. 他通常每天睡12個(gè)小時(shí)。since 其后接表示“時(shí)間點(diǎn)”的短語或從句（過去時(shí)），也可以接“一段時(shí)間+ago”，常用于完成時(shí)態(tài)；還用于句型：“It is +時(shí)間段+since+一般過去時(shí)的句子”。表示過去某個(gè)時(shí)間發(fā)生并持續(xù)到說話時(shí)的動(dòng)作或狀態(tài)。e.g. It is two years since I came to China. 自從我到中國以來已經(jīng)兩年了。 She has worked here for five years. =She has worked here since five years ago. 她在這兒工作5年了。2. Jeffs family is having a yard sale.sale用作名詞，意為“出售，銷售”，on sale意為“出售，上市”；for sale意為“待售，供出售”，尤指從主人手里出售。e.g. Chickens are on sale in the market. 小雞在市場上出售。 Im sorry, its not for sale. 抱歉，它不出售。3. Amy thinks its hard to sell her old things.艾米認(rèn)為賣掉她的舊東西很難。Its +adj. (+for sb.) to do sth. 意為“（對某人來說）做某事時(shí)的”，it 是形式主語，真正主語是后面的動(dòng)詞不定式。e.g. Its important for un to learn English well. 學(xué)好英語對于我們來說是很重要的。4. Amy wants to keep her old things because they bring back sweet memories.艾米想保留她的舊東西，因?yàn)樗鼈児雌鹚奶鹈刍貞?。memory n. ，意為“記憶；回憶”，復(fù)數(shù)形式為memories，動(dòng)詞為memorize，意為“記憶，背誦”。e.g. She has a good memory. 她記憶力好。5. Ive had this magazine for a couple of months. 這本雜志我買了幾個(gè)月了。a couple of 表示具體的數(shù)量“兩個(gè)”，指兩個(gè)相同的人或物體; 表示數(shù)量不定的“少數(shù)幾個(gè)”，作這種虛指的用法時(shí)，具體意思往往視上下文和具體的語境而決定，例