Unit 4 Then and now 第一课时课件 (共43张PPT)

Unit 4 Then and now.第一课时
1 熟记本节课所学的句型、短语和单词，必须会听、说、读、写。
2 将Let’s talk的对话朗读流利。
3 学会描述过去的学校与现在的学校的区别。
Goals

小朋友，我们今天要学习过去与现在的变化，你能想到过去的学校与现在的学校的区别么？
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Warm-up
Let't try.
听力原文：
Miss White: Children , please welcome Wu Yifan’s 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.
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Let't try.
Today, there is a guest visiting the school.
Listen and tick or cross.

（ ）1. The school changed a little.
（ ）2. Grandpa could use computers when he was at school.
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Let't try.
Today, there is a guest visiting the school.
Listen and tick or cross.

（X）1. The school changed a little.
（X）2. Grandpa could use computers when he was at school.
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Let't talk.
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 I’m going to visit the moon.
Wu Yifan: The Americans took about five days to get there in 1969.
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Let't talk.
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.

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知识点1：Tell us about your school, please. 请给我们讲一讲您的学校吧。
句型结构及用法
句型结构为：“Tell + sb.+ about+其他.”用于请求别人讲述关于某方面的信息，是一个祈使句。about是介词，意为“关于”。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。

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Tell _______about that film，please.
A. they??B. we??C. them
祈使句表示请求、命令、叮嘱、邀请、劝告等，读的时候一般用降调。其否定形式是在谓语动词前加Don’t。
例句：Don’t be late for school.
???上学不要迟到。





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知识点2：There was only one small building on a hill.
以前只有一栋很小的建筑物在山上。
例句：I’m 1.55 metres tall. 我身高1.55米。
there be结构的肯定句
“There was/were +主语+地点.”是there be结构的一般过去时态的肯定句，表示“某地（过去）存在某人/物。”，was 后接单数名词或不可数名词，were后接可数名词的复数形式。

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例句：There were many old trees here ten years ago. 十年前这儿有许多古树。
there was/were ...后接多个人或物时，be动词的单复数形式要与离它最近的主语在数上保持一致。
例句：There were many flowers and a big tree 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. were????B. are????C. was


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知识点3：The Americans took about five days to get there in 1969. 美国人在1969年花了大约五天抵达那儿。
took的用法
took是take的过去式，在此意为“费时”，其后接表示时间的名词（短语）作宾语。常用于句型“It takes/took （+某人）+时间+ to do sth.”意为“做某事花费（某人）多长时间。”
例句：It took me almost two hours to finish today’s homework.
???完成今天的家庭作业花了我近2个小时。


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其他用法:



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拿走；取走 He took his handbag away. 他把他的手提包拿走了。
吃；服（药） You should take some medicine. 你应该吃一些药。
乘坐；搭乘 She often takes a plane to Beijing. 她经常乘飞机去北京。
买下 I’ll take this dictionary. 我要买这本词典。
固定短语 take a trip去旅行?take pictures拍照
知识点4：How do you know that? 你怎么知道的？
用法：
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+主语+know+其他？
How询问方式，助动词的形式由主语来定，know后接宾语，表示知道的内容。
例句：How does your brother know that?
???你哥哥怎么知道的？
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知识点5：Easy, I looked it up on the Internet. 简单，我上网查过。
easy /i?zi / adj.容易的
例句：It’s easy for him to swim.游泳对他来说很容易。
比较级：easier
?反义词：difficult困难的
?短语：so easy如此简单
?形近词 ：east n.东；东方
easy容易的—difficult困难的

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知识点5：Easy, I looked it up on the Internet. 简单，我上网查过。
look up（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。
用法：look up接名词作宾语时，名词即可置于look与up之间，也可置于up之后；look up接代词作宾语时，代词只能放在look与up之间。
例句：You can look up words in a dictionary. 你可以在字典中查单词。
一词多义：look up 向上看
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知识点5：Easy, I looked it up on the Internet. 简单，我上网查过。
Internet /?nt?net/ n. 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。
短语：on the Internet 在网上
??? Internet bar 网吧
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知识点6：There was no library in my old school. 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。
there be结构的否定句
句型结构：(1)There wasn’t/weren’t +主语+地点.
(2)There was /were no+主语+地点.
这是there be结构的一般过去时态的否定句，表示“某地（过去）不存在某人/物。”
“no+单数名词” 相当于 “not a/an+单数名词” ;
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“no+复数名词/不可数名词” 相当于 “not any+复数名词/不可数名词”。
例句：河上以前没有桥。
There was no bridge over the river before.
There was not a bridge over the river before.
并列结构中，or代替and用于否定句。
There were no boys ________ girls in the classroom two minutes ago.
A. and???B. or???C. but

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Answer the question.
What was Grandpa’s school like?

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Practice
Answer the question.
What was Grandpa’s school like?
There was no library in my old school.
There was only one small building on a hill.
There were no computers or Internet in his time.


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Practice
Have a think:
What was your school like five years ago? What is it like now? Draw and talk.


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Let's learn.
Wu Yifan's father:There was no gym in my schook twenty years ago.
Wu Yifan:Now there's a new one in our school.
Presentation
地点名词[四会]
dining hall /da?n?? h??l/ n. 饭厅
例句：We have lunch in the dining hall. 我们在饭厅里吃午饭。
同义词汇：dining room
dining(进餐) + hall(大厅) = dining hall(饭厅)
dining table餐桌?dining car餐车




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grass /grɑ?s/ n. 草坪
例句：We play football on the grass.
我们在草地上踢足球。
形近词：glass玻璃
短语：on the grass 在草地上




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gym /d??m/ n. 体育馆
例句：I should go to the gym.
我该去体育馆。
短语： at the gym在体育馆
gym是gymnasium的缩写





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知识点8：ago /?ɡ??/ adv. 以前【四会】
例句： I went to the Great Wall a month ago.
???我一个月以前去过长城。
近义词：before
形近词：go去?age年龄
用法: ago意为“以前”，放在时间词后面，表示过去时间。如：a few minutes ago几分钟前?two days ago两天前?long long ago很久很久以前


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辨析：ago与before

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用法 例句
ago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。 She was here just a minute ago. 她刚才还在这儿。
before后面加时间点，可以和一般现在时连用；也可以单独使用，用于一般过去时；
还可以表示地点或位置，意为“在……前面”。
Go home before 9 o’clock. 9点之前要回家。
Before，I couldn’t ride a bike. 以前我不会骑自行车。
The boy sits before me.男孩坐在我前面。
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Find the mistakes.
At that time,there were a gyms.People didn't go by bus.People couldn't use the Internet.
Presentation
知识点9：At that time，there were no gyms. People didn’t go by bus. People couldn’t use the Internet. 那时没有体育馆。人们不坐公交车。人们不能使用网络。
一般过去时的否定句



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类别 句型 例句
be动词 主语+wasn’t/weren’t +其他. I wasn’t in Beijing yesterday.
我昨天不在北京。

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类别 句型 例句
实义动词 主语+didn’t +动词原形+其他. He didn’t watch TV yesterday.
他昨天没看电视。
情态动词can 主语+couldn’t +动词原形+其他. She couldn’t fly a kite three years ago.
三年前她不会放风筝。
there be结构 There wasn’t/weren’t +其他. There weren’t any oranges on the table.桌子上没有一些水果。
There was /were no +其他. There was no banana in the fruit basket. 果篮里没有香蕉。
1. 变为否定句。
There was a pencil in the pencil box.
_______________________________.
2. 选择填空。
It _______ Ben’s birthday last Friday.
A. wasn’t ??B. weren’t C. isn’t


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Practice
一、单项选择。
(　　) 1. There ________only one small house three years ago.
A. is　　B. was　　C. were
(　　) 2. Tell ________about your summer holiday, please.
A. he B. his C. him
(　　) 3. I was in Beijing ________.
A. tomorrow B. three years ago C. next week


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一、单项选择。
( B ) 1. There ________only one small house three years ago.
A. is　　B. was　　C. were
( C ) 2. Tell ________about your summer holiday, please.
A. he B. his C. him
( B ) 3. I was in Beijing ________.
A. tomorrow B. three years ago C. next week


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一、单项选择。
(　　) 4. There ________a new gym now.
A. is B. are C. was
(　　) 5. They ________on the Internet yesterday.
A. looked up it
B. looked it up
C. look it up



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一、单项选择。
( A ) 4. There ________a new gym now.
A. is B. are C. was
( B ) 5. They ________on the Internet yesterday.
A. looked up it
B. looked it up
C. look it up



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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.


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Practice
二、用There was或There were填空。
1. There was no gym in my old school.
2. There was a small river in my village last year.
3. There were many trees in the park four months ago.
4. There were no tall buildings in my city ten years ago.
5. There were no computers in my school at that time.


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三、连词成句。
1. that, you, how, do, know (?)
2. stars, night, you, could, see, at (?)
3. now, it, what, is, like (?)
4. by, people, didn’t, go, bus (.)
5. use, Internet, couldn’t, people, the (.)



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三、连词成句。
1. How do you know that?
2.Could you see stars at night?
3.What is it like now?
4.People didn't go by bus.
5.People couldn't use the Internet.



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There was no library in my old school.
2. 学会情态动词再过去式中的使用：
-Could you see stars at night？
-No,I couldn't.
1. 学会there be 句型的否定表达：
小结


1.按照正确的语音、语调朗读课文对话。
2.回家问问爷爷奶奶，在他们的时代学校是什么样子？
然后用英文表达出来与现在的区别。
3. 预习下一课时part B
Homework