1、 Unit 4 Then and nowPEP 六年级下册 Grandpa:Wow,a library!There was no library in my old school.Sarah:Tell us about your school,please.Grandpa:There was only one small building 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
2、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 no computers or Internet in my time.What was Grandpas school like?What was your school like five years ago?What is it like now?Draw and talk.Tel
3、l us about your school,please.请给我们讲一讲您的学校吧。请给我们讲一讲您的学校吧。知识点知识点 1 1句型结构及用法句型结构及用法句型结构为:句型结构为:“Tell+sb.+about+其他其他.”用于请求别人讲用于请求别人讲述关于某方面的信息,是一个祈使句。述关于某方面的信息,是一个祈使句。about是介词,意是介词,意为为“关于关于”。在此句型中,后接想要知道的信息。在此句型中,后接想要知道的信息。例句:Tell us about your daily life.请给我们讲一讲你的日常生活吧。考向考向典例典例拓展拓展祈使句表示请求、命令、叮嘱、邀请、劝告等,读
4、的时候一般用降调。其否定形式是在谓语动词前加Dont。例句:Dont be late for school.上学不要迟到。Tell _about that film,please.A.theyB.weC.them CThere was only one small building on a hill.以前只有一栋很小的建筑物在山上。以前只有一栋很小的建筑物在山上。知识点知识点 2 2例句:Im 1.55 metres tall.我身高1.55米。there be结构的肯定句结构的肯定句“There was/were+主语主语+地点地点.”是是there be结构的一结构的一般过去时态的肯定句
5、,表示般过去时态的肯定句,表示“某地(过去)存在某某地(过去)存在某人人/物。物。”,was 后接单数名词或不可数名词,后接单数名词或不可数名词,were后接可数名词的复数形式。后接可数名词的复数形式。考向考向例句:There were many old trees here ten years ago.十年前这儿有许多古树。易错点易错点提示提示there was/were.后接多个人或物时,后接多个人或物时,be动词动词的单复数形式要与离它最近的主语在数上保持的单复数形式要与离它最近的主语在数上保持一致。一致。例句:There were many flowers and a big tree
6、 in the garden two years ago.两年前花园里有许多花和一棵大树。单项选择。There _ many trees on the hill three years ago.A.wereB.areC.was典例典例Btook的用法的用法took是是take的过去式,在此意为的过去式,在此意为“费时费时”,其后接表示时间的,其后接表示时间的名词(短语)作宾语。常用于句型名词(短语)作宾语。常用于句型“It takes/took(+某人)某人)+时间时间+to do sth.”意为意为“做某事花费(某人)多长时间。做某事花费(某人)多长时间。”例句:It took me alm
7、ost two hours to finish todays homework.完成今天的家庭作业花了我近2个小时。考向考向1 1The Americans took about five days to get there in 1969.美国人在美国人在1969年花了大约五天抵达那儿。年花了大约五天抵达那儿。知识点知识点 3 3其他用法其他用法考向考向2 2拿走;取走拿走;取走He took his handbag away.他把他的手提包拿走了。他把他的手提包拿走了。吃;服(药)吃;服(药)You should take some medicine.你应该吃一些药。你应该吃一些药。乘坐;
8、搭乘乘坐;搭乘She often takes a plane to Beijing.她经常乘飞机去北京。她经常乘飞机去北京。买下买下Ill take this dictionary.我要买这本词典。我要买这本词典。固定短语固定短语take a trip去旅行去旅行take pictures拍照拍照用法用法这是一个询问他人如何得知某件事的句型。句型结构:这是一个询问他人如何得知某件事的句型。句型结构:How+助动词助动词+主语主语+know+其他?其他?How询问方式,助动词的形式由主语来定,询问方式,助动词的形式由主语来定,know后接后接宾语,表示知道的内容。宾语,表示知道的内容。例句:Ho
9、w does your brother know that?你哥哥怎么知道的?知识点知识点 4 4考向考向How do you know that?你怎么知道的?你怎么知道的?知识点知识点 5 5Easy,I looked it up on the Internet.简单,我上网查过。简单,我上网查过。考向考向easy/izi/adj.容易的容易的例句:Its easy for him to swim.游泳对他来说很容易。比较级:比较级:easier反义词:反义词:difficult困难的困难的短语:短语:so easy如此简单如此简单形近词形近词:east n.东;东方东;东方归纳意义相反的
10、单词,把它们放在一起记忆的方法就是反义词记忆法。如:easy容易的difficult困难的反义词记忆法反义词记忆法:look up(在词典中或通过电脑)查阅(在词典中或通过电脑)查阅例句:We can look it up in the dictionary.我们可以在字典中查阅它。考向考向用法:用法:look up接名词作宾语时,名词即可置于接名词作宾语时,名词即可置于look与与up之间,也可置于之间,也可置于up之后;之后;look up接代词作宾语接代词作宾语时,代词只能放在时,代词只能放在look与与up之间。之间。例句:You can look up words in a dict
11、ionary.你可以在字典中查单词。一词多义:look up 向上看拓展拓展Internet/ntnet/n.互联网互联网例句:You can find them all on the Internet.你可以在互联网上把它们都找到。考向考向短语:短语:on the Internet 在网上在网上 Internet bar 网吧网吧There was no library in my old school.我以前的学校里没有图书馆。我以前的学校里没有图书馆。There were no computers or Internet in my time.我那时候没有电脑和网络。我那时候没有电脑和网
12、络。知识点知识点 6 6there be结构的否定句结构的否定句句型结构句型结构:(1)There wasnt/werent+主语主语+地点地点.(2)There was/were no+主语主语+地点地点.考向考向1 1这是这是there be结构的一般过去时态的否定句,表示结构的一般过去时态的否定句,表示“某某地(过去)不存在某人地(过去)不存在某人/物。物。”“no+单数名词单数名词”相当于相当于 “not a/an+单数名词单数名词”;“no+复数名词复数名词/不可数名词不可数名词”相当于相当于 “not any+复数名复数名词词/不可数名词不可数名词”。例句:河上以前没有桥。Ther
13、e was no bridge over the river before.There was not a bridge over the river before.易错点易错点提示提示并列结构中,并列结构中,or代替代替and用于否定句。用于否定句。例句:There is no air or water on the moon.月球上没有空气和水。There were no boys _ girls in the classroom two minutes ago.A.andB.orC.but典例典例B地点名词地点名词四会四会知识点知识点 7 7dining hall/dan hl/n.饭厅
14、饭厅例句:We have lunch in the dining hall.我们在饭厅里吃午饭。dining(进餐)+hall(大厅)=dining hall(饭厅)考向考向拓展拓展dining table餐桌dining car餐车加法记忆法加法记忆法:同义词汇:同义词汇:dining roomgrass/grs/n.草坪草坪例句:We play football on the grass.我们在草地上踢足球。形近词:形近词:glass玻璃玻璃短语:短语:on the grass 在草地上在草地上 考向考向 gym/dm/n.体育馆体育馆短语:短语:at the gym在体育馆在体育馆考向考
15、向拓展拓展 gym是gymnasium的缩写例句:I should go to the gym.我该去体育馆。知识点知识点 8 8例句:I went to the Great Wall a month ago.我一个月以前去过长城。近义词:近义词:before形近词:形近词:go去去age年龄年龄考向考向1 1考向考向2 2 用法用法:ago意为意为“以前以前”,放在时间词后面,表示,放在时间词后面,表示过去时间。如:过去时间。如:a few minutes ago几分钟前几分钟前two days ago两天前两天前long long ago很久很久以前很久很久以前ago/adv.以前以前【四
16、会四会】辨析:辨析:ago与与before考向考向3 3用法用法例句例句ago通常和一般过去时连用,前面加表通常和一般过去时连用,前面加表示时间段的单词或短语,不能单独使用。示时间段的单词或短语,不能单独使用。She was here just a minute ago.她刚才还在这儿。她刚才还在这儿。before后面加时间点,可以和一般现在后面加时间点,可以和一般现在时连用;也可以单独使用,用于一般过时连用;也可以单独使用,用于一般过去时;去时;还可以表示地点或位置,意为还可以表示地点或位置,意为“在在前面前面”。Go home before 9 oclock.9点之前要回家。点之前要回家。
17、Before,I couldnt ride a bike.以前我不会骑自行车。以前我不会骑自行车。The boy sits before me.男孩坐在我前面。男孩坐在我前面。知识点知识点 9 9考向考向一般过去时的否定句一般过去时的否定句At that time,there were no gyms.People didnt go by bus.People couldnt use the Internet.那时没有体育馆。人们不坐公交那时没有体育馆。人们不坐公交车。人们不能使用网络。车。人们不能使用网络。类别类别句型句型例句例句be动词动词 主语主语+wasnt/werent+其他其他.I
18、 wasnt in Beijing yesterday.我昨天不在北京。我昨天不在北京。类别类别句型句型例句例句实义动词实义动词主语主语+didnt+动词原动词原形形+其他其他.He didnt watch TV yesterday.他昨天没看电视。他昨天没看电视。情态动词情态动词can主语主语+couldnt+动词动词原形原形+其他其他.She couldnt fly a kite three years ago.三年前她不会放风筝。三年前她不会放风筝。there be结结构构There wasnt/werent+其他其他.There werent any oranges on the ta
19、ble.桌子上没有一些水果。桌子上没有一些水果。There was/were no+其他其他.There was no banana in the fruit basket.果篮里没有香蕉。果篮里没有香蕉。典例典例1.变为否定句。There was a pencil in the pencil box._.2.选择填空。It _ Bens birthday last Friday.A.wasnt B.werent C.isntThere wasnt a pencil in the pencil boxA 本节课我们学习了本节课我们学习了take,easy,look up,internet 等词
20、汇,请同学们一定加强巩固,等词汇,请同学们一定加强巩固,以便能和同学们进行灵活交流哦!以便能和同学们进行灵活交流哦!一、单项选择。()1.There _only one small house three years ago.A.isB.wasC.were()2.Tell _about your summer holiday,please.A.he B.his C.himC点拨点拨:由three years ago可知此句用一般过去时,house是单数形式,be动词也要用单数形式,is的过去式为was。点拨点拨:此句的句意为:请告诉他关于你暑假的情况。tell接人称代词作宾语,要用代词的宾格形
21、式。B点拨点拨:()3.I was in Beijing _.A.tomorrow B.three years ago C.next week()4.There _a new gym now.A.is B.are C.wasB点拨点拨:three years ago“三年前”,用于过去时;其他两项用于将来时。由now可知此句用一般现在时,由于gym是单数形式,故用be动词is。A()5.They _on the Internet yesterday.A.looked up it B.looked it up C.look it upB点拨点拨:由yesterday可知此句需用一般过去时,故首先
22、排除C项,look up与人称代词连用,人称代词只能放在其中间。二、用There was或There were填空。1._no gym in my old school.2._a small river in my village last year.3._many trees in the park four months ago.4._no tall buildings in my city ten years ago.5._no computers in my school at that time.There wasThere wasThere wereThere wereThere
23、were三、连词成句。1.that,you,how,do,know(?)_2.stars,night,you,could,see,at(?)_3.now,it,what,is,like(?)_How do you know that?Could you see stars at night?What is it like now?4.by,people,didnt,go,bus(.)_5.use,Internet,couldnt,people,the(.)_People didnt go by bus.People couldnt use the Internet.1 熟记本节课所学的单词,句
24、型,短语等,必须会听、说、读、写。2 将Lets talk的对话朗读流利。Miss White:Children,please welcome Wu Yifans grandfather to the class.Class:Welcome!Grandpa:Wow!The school is very different from my old school.There were no computers at all before.Mike:Really?How did you learn?Grandpa:We listened to the teachers and read lots of books.