1、Unit 4 Then and now 第一課時(shí) Part ALets try Lets talkWarm-upLets spellis -are -go -can -see -watch -read -look -waswerewentcouldsawwatchedreadlookedLets try聽力原文Miss White: Children , please welcome Wu Yifans grandfather to the class.Class: Welcome!Grandpa: Wow! The school is very different from my old s

2、chool. There were no computers at all before.Mike: Really? How did you learn?Grandpa : We listened to the teachers and read lots of books.Lets tryLets talkGrandpa: Wow, a library! There was no library in my old school.Sarah: Tell us about your school, please.Grandpa: There was only one small buildin

3、g on a hill.Wu Yifan: Could you see stars at night？Grandpa: Yes, I liked the stars.Sarah: Me too. One day Im going to visit the moon. Wu Yifan: The Americans took about five days to get there in 1969. Sarah: How do you know that？Wu Yifan: Easy, I looked it up on the Internet.Grandpa: Ah! There were

4、no computers or Internet in my time. What was Grandpas school like?Lets talkWhat was your school like five years ago? What is it like now? Draw and talk.Tell us about your school, please. 請(qǐng)給我們講一講您的學(xué)校吧。知識(shí)點(diǎn) 句型結(jié)構(gòu)及用法句型結(jié)構(gòu)為：“Tell + sb.+ about+其他.”用于請(qǐng)求別人講述關(guān)于某方面的信息，是一個(gè)祈使句。about是介詞，意為“關(guān)于”。在此句型中，后接想要知道的信息。例句：

5、Tell us about your daily life. 請(qǐng)給我們講一講你的日常生活吧?？枷虻淅卣蛊硎咕浔硎菊?qǐng)求、命令、叮囑、邀請(qǐng)、勸告等，讀的時(shí)候一般用降調(diào)。其否定形式是在謂語動(dòng)詞前加Dont。例句：Dont be late for school. 上學(xué)不要遲到。Tell _about that film，please.A. theyB. weC. them CThere was only one small building on a hill. 以前只有一棟很小的建筑物在山上。知識(shí)點(diǎn) 例句：Im 1.55 metres tall. 我身高1.55米。there be結(jié)構(gòu)的肯定句“T

6、here was/were +主語+地點(diǎn).”是there be結(jié)構(gòu)的一般過去時(shí)態(tài)的肯定句，表示“某地（過去）存在某人/物?！?，was 后接單數(shù)名詞或不可數(shù)名詞，were后接可數(shù)名詞的復(fù)數(shù)形式?？枷蚶洌篢here were many old trees here ten years ago. 十年前這兒有許多古樹。易錯(cuò)點(diǎn)提示there was/were .后接多個(gè)人或物時(shí)，be動(dòng)詞的單復(fù)數(shù)形式要與離它最近的主語在數(shù)上保持一致。例句：There were many flowers and a big tree in the garden two years ago.兩年前花園里有許多花和一棵大樹

7、。單項(xiàng)選擇。There _ many trees on the hill three years ago.A. wereB. areC. was典例Btook的用法took是take的過去式，在此意為“費(fèi)時(shí)”，其后接表示時(shí)間的名詞（短語）作賓語。常用于句型“It takes/took （+某人）+時(shí)間+ to do sth.”意為“做某事花費(fèi)（某人）多長(zhǎng)時(shí)間。”例句：It took me almost two hours to finish todays homework. 完成今天的家庭作業(yè)花了我近2個(gè)小時(shí)。考向1The Americans took about five days to g

8、et there in 1969. 美國人在1969年花了大約五天抵達(dá)那兒。知識(shí)點(diǎn) 其他用法考向2拿走；取走He took his handbag away. 他把他的手提包拿走了。吃；服（藥）You should take some medicine. 你應(yīng)該吃一些藥。乘坐；搭乘She often takes a plane to Beijing. 她經(jīng)常乘飛機(jī)去北京。買下Ill take this dictionary. 我要買這本詞典。固定短語take a trip去旅行take pictures拍照用法這是一個(gè)詢問他人如何得知某件事的句型。句型結(jié)構(gòu)：How+助動(dòng)詞+主語+know+其他

9、？How詢問方式，助動(dòng)詞的形式由主語來定，know后接賓語，表示知道的內(nèi)容。例句：How does your brother know that?你哥哥怎么知道的？ 知識(shí)點(diǎn) 考向How do you know that? 你怎么知道的？知識(shí)點(diǎn) Easy, I looked it up on the Internet. 簡(jiǎn)單，我上網(wǎng)查過?？枷騟asy /izi / adj.容易的例句：Its easy for him to swim.游泳對(duì)他來說很容易。 比較級(jí)：easier反義詞：difficult困難的短語：so easy如此簡(jiǎn)單形近詞 ：east n.東；東方歸納意義相反的單詞，把它們放在

10、一起記憶的方法就是反義詞記憶法。如：easy容易的difficult困難的反義詞記憶法：look up（在詞典中或通過電腦）查閱例句：We can look it up in the dictionary. 我們可以在字典中查閱它?？枷蛴梅ǎ簂ook up接名詞作賓語時(shí)，名詞即可置于look與up之間，也可置于up之后；look up接代詞作賓語時(shí)，代詞只能放在look與up之間。例句：You can look up words in a dictionary. 你可以在字典中查單詞。一詞多義：look up 向上看拓展Internet /ntnet/ n. 互聯(lián)網(wǎng)例句：You can fin

11、d them all on the Internet.你可以在互聯(lián)網(wǎng)上把它們都找到?？枷蚨陶Z：on the Internet 在網(wǎng)上 Internet bar 網(wǎng)吧There was no library in my old school. 我以前的學(xué)校里沒有圖書館。There were no computers or Internet in my time. 我那時(shí)候沒有電腦和網(wǎng)絡(luò)。知識(shí)點(diǎn) there be結(jié)構(gòu)的否定句句型結(jié)構(gòu)：(1)There wasnt/werent +主語+地點(diǎn). (2)There was /were no+主語+地點(diǎn).考向1這是there be結(jié)構(gòu)的一般過去時(shí)態(tài)的否定句，表示“某地（過去）不存在某人/物?！?“no+單數(shù)名詞” 相當(dāng)于 “not a/an+單數(shù)名詞” ; “no+復(fù)數(shù)名詞/不可數(shù)名詞” 相當(dāng)于 “not any+復(fù)數(shù)名詞/不可數(shù)名詞”。例句：河上以前沒有橋。There was no bridge over the river before.There was not a bridge over the river before.易錯(cuò)點(diǎn)提