Unit 4 Growing up Grammar课件(共26张PPT) 牛津译林版九年级英语下册

(共26张PPT)
九年级·英语·译林版·全一册
Unit 4 Life on Mars
Grammar
1.能记住并正确运用本节课词汇aware， circle， agreement， distance， possibility， alien， doubt， stranger。
2.知道如何把时间状语从句、原因状语从句和条件状语从句转化成简单句。
3.懂得如何把宾语从句和定语从句转化成简单句。
1.完成任务驱动一，达成学习目标1、2。
2.完成任务驱动二，达成学习目标1、3。
举例复习本课的几种类型的从句，让学生判断是哪种从句并翻译。
一、词汇记忆
1.知道，意识到 　aware　
2.将……圈起来 　circle　
3.一致，同意 　agreement　
4.距离，远处 　distance　
5.可能性 　possibility　
aware
circle
agreement
distance
possibility
6.外星人 　alien　
7.疑惑，疑问 　doubt　
alien
doubt
8.陌生人 　stranger　
9.在……岁时 　at the age of...　
10.与……不同 　be different from...　
11.顺便问一下 　by the way　
stranger
at the age of...
be different from...
by the way
二、用所给单词的适当形式填空
1.Humans are thinking about 　moving　 (move) to another planet， like Mars.
2.Is this problem 　solved　 (solve) by you？
3.She didn’t say anything in front of so many 　strangers　 (stranger) because she is very shy.
moving
solved
strangers
4.We’re in 　agreement　 (agree) that we should build a road across from the village.
5.The food in the restaurant is always 　tasty　 (taste)， so there are many customers in it every day.
6.The man is so lucky. He will take his second 　flight　 (fly) to space.
agreement
tasty
flight
三、想一想。在括号中写出下列从句的类型
1.His sister is crying because she got bad grades in the final examination. ( 　原因状语从句　 )
2.We all hope that we will get to our hometown soon. ( 　宾语从句　 )
3.I will finish the work early if you help me.( 条件状语从句　 )
原因状语从句
宾语从
句
条件状语从
句
4.Do you like music that is soft and quiet？ ( 　定语从句　 )
定语从句
5.My father moved to a big city with his parents when he was ten years old.( 　时间状语从句　 )
时间状语从句
探究如何将状语从句转化为简单句
·导学建议·
状语从句类型较多，让学生首先学会判断从句的类型，然后才能进行句型的正确转化。
◎学法指导:要从两方面去学习状语从句:首先找到从句中的连词、引导词或关系词，根据连词判断句子的类型；第二是根据主句和从句之间的关系去判断句子的类型。
1.观察预习导学部分“想一想”中的1、3、5句，按要求填空。
①句1中的连词是because，从句she got bad grades in the final examination是主句His sister is crying的原因，故该句为原因状语从句。转化为简单句:His sister is crying because of the bad grades in the final examination.
②句3中的连词是if，从句you help me是主句I will finish the work early的条件，故该句为条件状语从句。转化为简单句:I will finish the work early with your help.
His sister is crying because of the bad
grades in the final examination.
I
will finish the work early with your help.
③句5中的连词是when，从句he was ten years old是主句My father moved to a big city with his parents的时间，故该句为时间状语从句。转化为简单句:My father moved to a big city with his parents at the age of ten.
My father moved to a big city with
his parents at the age of ten.
2.通过观察上面的三个句子，我们可以发现:
不管是何种类型的从句，首先，我们要找到句中的 　连　 词；其次是分析 　主　 句和 　从　 句之间的关系；最后，利用 　介词　 或 　介词短语　 把状语从句转化为 　简单句　 。
3.阅读材料，找出下面材料中不同类型的状语从句并将其转化为简单句。
连
主
从
介词
介词短语
简单句
I didn’t go to school yesterday because the weather was terrible. I got up early to review my schoolwork. I read an English story in an English newspaper. It was so educational. It was about a girl student. She got into a good university when she was 17 years old. Anyone who knew her well was very proud of her. However， few people knew how she worked hard at all her lessons. If she didn’t work hard， she wouldn’t be able to get such good grades. We shouldn’t just admire others. What we should do is to work hard like her.
原因状语从句I didn’t go to school yesterday because the weather was terrible.
→简单句I didn’t go to school yesterday because of the terrible weather.
时间状语从句She got into a good university when she was 17 years old.
→简单句She got into a good university at the age of 17.
I didn’t go to school yesterday because the weather
was terrible.
I didn’t go to school yesterday because of the terrible
weather.
She got into a good university when she was 17
years old.
She got into a good university at the age of 17.
条件状语从句If she didn’t work hard， she wouldn’t be able to get such good grades.
→简单句Without her hard work， she wouldn’t be able to get such good grades.
If she didn’t work hard， she wouldn’t be able to
get such good grades.
Without her hard work， she wouldn’t be able to get
such good grades.
探究如何将宾语从句和定语从句转化为简单句
·导学建议·
教会学生如何通过分析句子结构来区别宾语从句和定语从句。
◎学法指导:宾语从句和定语从句中都可能有that作为引导词或关系词，要先搞清它在句子中的成分，才能确定该句是宾语从句还是定语从句。
1.观察预习导学部分“想一想”中的2、4句，按要求填空。
①句2中的引导词是that，从句we will get to our hometown soon是主句We all hope的宾语，故该句为 　宾语　 从句。转化为简单句:We all hope to get to our hometown soon.
②句4中的关系代词是that，从句that is soft and quiet 是主句Do you like music中先行词music的定语，故该句为 　定语　 从句。转化为简单句:Do you like soft and quiet music？
宾语
We all hope to get to our hometown soon.
定语
Do you like soft and quiet music？
2.通过观察上面的两个句子，我们可以发现:
我们要先找到句中的引导词或关系词，再分析 　主　 句和 　从　 句之间的关系，从而判断复合句的 　类型　 。在定语从句中我们还要弄清关系词在 　从　 句中充当的句子成分。最后，利用 　不定式　 作宾语把宾语从句转化为简单句或利用 　形容词　 作定语把定语从句转化为简单句。
主
从
类型
从
不定式
形容词
①My mother wears a hat that has a beautiful flower on it.
②Tom hopes that he will go to his hometown in two days.
③Kate didn’t know what she should do.
3.把下列句子按表格分类，再把它们转化为简单句。
④This is the boy that was in your room just now.
复合句 简单句
宾语从句 ② Tom hopes to go to his hometown in two days.
③ Kate didn’t know what to do.
定语从句 ① My mother wears a hat with a beautiful flower on it.
④ This is the boy in your room just now.
②
Tom hopes to go to his hometown in two
days.
③
Kate didn’t know what to do.
①
My mother wears a hat with a beautiful
flower on it.
④
This is the boy in your room just now.
Many people are in no doubt that life on Mars would be very interesting. 许多人毫不怀疑火星上的生活会很有意思。　
◎用法总结:
doubt的用法
词性 词义 用法 例句
名词 疑惑 常见结构为:no doubt没有疑惑， without doubt毫无疑问， in doubt有疑问，拿不定主意 Without doubt， this is the reason why he didn’t recognize his mother. 毫无疑问，这就是他没有认出他妈妈的原因。
doubt的用法
词性 词义 用法 例句
动词 怀疑， 对…… 疑惑 常跟宾语从句。 主句是肯定句，宾语从句一般用if或whether引导；主句是否定句，宾语从句一般用that引导。 I doubt if he can do as I told him. 我怀疑他是否能按照我告诉他的去做。
I don’t doubt that she is honest. 我不怀疑她是诚实的。
1.我拿不定主意，下一步该怎么办。(根据汉语意思完成句子)
I’m 　in　 　doubt　 what to do next.
2.The teacher didn’t doubt 　that　 Liu Hai wouldn’t be late.(填入适当的引导词)
in
doubt
that