Unit 2 Section A (Grammar Focus~4c)课件(共27张PPT) 2024-2025学年英语人教版九年级全一册

(共27张PPT)
Unit 2
I think that mooncakes are delicious!
Section A (Grammar Focus~4c)
1. I know that ______________________________.
我知道泼水节非常有趣。
2. __________ they’ll have the races again next year.
我想知道明年他们是否还会比赛。
3. I wonder _________________________________________.
我想知道六月是不是去香港旅游的好时候。
4. I believe that ____________________________________.
我相信四月是泰国最热的月份。
I wonder if
the Water Festival is really fun
whether June is a good time to visit Hong Kong
April is the hottest month in Thailand
Pay attention to these objective clauses.
主语+谓语
that/if/whether
宾语从句
+
+
在复合句中，由一个句子充当宾语，这个句子叫做宾语从句。
Practice
We know him．
We know he likes English.
主s
主s
谓v
谓v
宾o
宾o
宾语从句就是由一个句子来充当宾语。
主s
谓v
宾o
简单句
复合句
什么 是宾语从句？
试比较
语法重点 ：本单元主要学习由that, whether / if引导的宾语从句。
定义：在句子中起宾语作用的从句叫做宾语从句。
We know Mr Green teaches English.
She asked if these answers were right.
三要素：1.引导词（连接词）：that, if, whether
2.时态：当主句用一般过去时时态时，宾语从句要用过去的某种时态。
3.语序：宾语从句用陈述句语序，即 “主语+谓语”。如：
e.g. He asked me where my school was.
I didn’t know who she was
从句原形 关联词 例句
陈述句 that（一般情况下，口语或非正式文体中常省略） I think (that) Halloween is a fun festival.
一般疑问句 whether, if (意为“是否”，在口语中常用if) I wonder if/whether they’ll have the races again next year.
宾语从句结构I:
主语+谓语+that+宾从(肯定句、否定句)
I know that the Water Festival is really fun.
主语
谓语
宾语从句(肯定句)
Bill thinks that the races were not that interesting to watch.
宾语从句(否定句)
主语
谓语
一、（1）由that引导的宾语从句
当宾语从句具有陈述意义时，用 that引导。that 在句中无词汇意义，在从句中不充当成分，在口语当中往往省略。
连词that不能省略的几种情况:
1. 从句的主语是that。如：
He says that that is a real king’s hat.他说那是一个真的王冠。
2. that从句中含有主从复合句。如：
I’m afraid that if you’ve lost it, you must pay for it.
3. 主、从句之间有插入语时。如：
It says here, on this card, that it was used in plays.
卡片上写着，它是古代演戏用的。
4. 若出现两个或两上以上的由that引导的宾语从句，且由
并列连词连接时，只有第一个连词that可以省略。如：
She said (that) she would come and that she would also bring her son. 她说她要来，还要带她的儿子来。
由于if和whether连接的句子在语义上是一般疑问句或选择疑问句，因此要注意把从句语序改为陈述句语序。
一、（2）由if / whether引导的宾语从句
当宾语从句具有疑问意义时，可用if或whether引导。它们在句子中的意思是“是否”,不能省略。
宾语从句结构 II:
主语+谓语动词+whether/if+宾从(一般疑问句，陈述语序)
主语+谓语+whether/if+宾从(一般疑问句 陈述语序)
Is June a good time to visit Hong Kong (I wonder)
I wonder whether June is a good time to visit Hong Kong.
Will they have the races again next year ( He wonders)
I wonder if they’ll have the races again next year.
Does he like reading books (She asks)
She asks if he likes reading books.
if或whether引导宾语从句时，作“是否”讲，一般情况下，两者常可换用。二者在下列几种情况下不能换用：
1. 宾语从句置于句首表示强调时，应用whether，不用if。
如：Whether this is true or not, I can’t say.这是否对，我不能说。
2. 宾语从句与or not直接连用时，应用whether，不能用if。
如：I don’t know whether or not he will come tomorrow.
我不知道他明天是否来。
3. 与动词不定式连用时，只能用whether。
如：She can’t decide whether to go to America.
她不能决定是否去美国。
4. 从句作介词宾语时，只能用whether。
如：I worry about whether I hurt her feeling.
我担心是否伤了她的感情。
5. 宾语从句的谓语动词是否定形式时，只能用if，不能用 whether。
如： Tom wants to know if she won’t come here tomorrow.
汤姆想知道她明天是否不来这儿。
6. if意为“假如，如果”时，可以引导条件状语从句，而 whether没有这个用法。
如： If Simon comes here tomorrow, I’ll call you.
假如西蒙明天来这儿，我将打电话告诉你。
主句现在时，从句可使用任何时态；
主句过去时态，从句一律使用过去时态。
当宾语从句是客观真理或不可改变的自然现象时，宾语从句须用一般现在时，不受主句时态的限制。
I think that you are right.
Lin Tao thought the TV play was very boring.
Our teacher told us that light travels faster than sound.
宾语从句的时态取决于主句的时态。
二、宾语从句的时态变化
宾语从句三要素
引导词
that+陈述句
if／whether+一般疑问句 陈述语序
时态
主句为一般现在时从句可为任何时态
主句为一般过去时
从句
一般过去时
过去将来时
过去进行时
过去完成时
语序
宾语从句的语序都为陈述句语序
客观真理时态不变
Pay attention to these exclamatory statements.
1. _________ the Water Festival ____!
多么有趣的泼水节！
2. _______________________________were!
多么奇异的龙舟队啊！
3. ___________ the dragon boats were!
多么可爱的龙舟啊！
4. _______________________ in Hong Kong!
香港的食物是多少美味啊！
What fun
is
How fantastic the dragon boat teams
How delicious the food is
How pretty
What/How
名词/形容词/副词
主语+谓语+……！
+
+
感叹句是表示赞美、惊叹、喜悦等感情的句子。 感叹句通常由what和how引导。 what修饰名词， how修饰形容词或副词。
感叹句的句子结构:
1. What + a/an +adj. + n.(单)（+ 主语 +谓语！）
What +adj. + n. (pl.) （+ 主语+谓语！）
What +adj. + un.（+ 主语+谓语！）
2. How + adj./adv.（+ 主语+谓语）！
How + 主语+谓语！
How + adj. + a/an + 名词单数 (+主语+谓语)!
_____ a beautiful city it is！
_____ beautiful the city is！
3. _____ exciting the news is！
4. _____ an old building it is！
5. _____ brave the doctors and nurses are！
6. _____ quickly he runs at the sports meeting！
判断依据：去掉主语和谓语部分，中心词是名词时，那么感叹词用what;中心词是形容词或副词时，那么感叹词用how 。
How
How
How
What
How
what与how
一去：
主谓
二看：
是否有名词
What
city
exciting
beautiful
building
quickly
brave
小试身手
1. ______ great fun it is to swim!
2._________ useful book this is !
3._____ fine the day is!
4._______ hard work it is !
5.______ bad weather it was yesterday!
6.______ hard the job is!
7.______ terrible news we heard last night!
8. ______ friendly these kids!
What a
How
What
What
How
What
What
How
What 与How 大转换
1. What a pretty girl she is!
_______ _______ the girl is!
2. How difficult the questions are!
_________ ________ ________ they are.
3. How big the factory is!
_______ _______ big factory _____ ____!
4.What a clever boy!
_______ _______ the boy _______!
How pretty
What difficult questions
What a
it is
How clever
is
1）一般情况下，以what和how开头的感叹句可以相互转换，转换后意义不变。
What a tall building it is! = How tall the building is!
How interesting the stories are!= What interesting stories they are!
2）在how引导的感叹句中，句中的主语和谓语可以省略：
How fast！ 多快呀！
How nice of you to come！ 你来了真好！
拓展
3）要修饰名词的形容词不能是表数量的many， much， little， few，遇此情况要用how，即使它们后面跟有名词：
How many books he has！ 他的书真多！
How much money he gave her！ 他给了她好多钱呀！
How little money I have！ 我的钱多么少呀！
How few friends he has！ 他的朋友真少！
比较：What a little box it is！ 多小巧的盒子呀！（该little不表示数量）
4）在感叹句中，What a / an 常用来修饰单数可数名词，若其前面的形容词为元音开头，则用 an。what 是用来修饰复数可数名词和不可数名词。
但有些不可数名词，如 rain, surprise, breakfast, lunch 等，当前面有形容词修饰，使抽象名词具体化时，则要用 what a / an，如：
What a heavy rain it is! 多大的一场雨啊！
What a great surprise it is! 这多么令人惊奇啊！
What a rich breakfast it is! 多么丰盛的一顿早餐啊！
think/ Lantern Festival/ beautiful
I think that the Lantern Festival is beautiful.
2. don’t know/ whether/ he/ come home/ for the festival
3. believe/ Water Festival/ most/ fun
4. wonder/ if/ mooncakes/ delicious
5. how/ exciting/ races
6. what/ interesting/ city
I don’t know whether he will come home for the festival.
Write sentences using the words given.
I believe that the Water Festival is the most fun.
I wonder if the mooncakes are delicious.
How exciting the races were!
What an interesting city!
4a
Read the passage below and underline the objective clauses.
Dear Xia Yu,
Do you know that there are two special days for parents in America One is Mother’s Day on the second Sunday of May,and the other is Father’s Day on the third Sunday of June.On these two days, American children often give gifts to their parents or take them out for lunch or mon gifts are flowers and cards for mothers and shirts or ties for fathers. I heard that it is becoming more and more popular to celebrate Mother’s Day and Father’s Day in China. I wonder if children over there also give similar gifts to their parents. I believe that there are many ways to show our love. Actually, we don’t have to spend a lot of money. It is also a good idea to help parents to do something instead.
June
(宾语从句).
4b
1. Do you know that there are two special days for parents in America
2. I heard that it is becoming more and more popular to celebrate Mother’s Day and Father’s Day in China.
3. I wonder if children over there also give
similar gifts to their parents.
4. I believe that there are many ways to show our love.
flowers, cards
giving gifts to parents
helping parents do something
mothers
fathers
shirts, ties
Say your own sentences about Mother’s Day and Father’s Day using objective clauses(使用宾语从句).
taking parents out for lunch or dinner
Which festival do you like best Ask your group and report to the class.
A: There are many festivals in China. Which festival do you like best
B: I think I like Mid-Autumn Festival best.
A: Why do you like it best
B: I think I can enjoy delicious mooncakes.
e.g. In our group, David’s favorite festival is …He thinks that….
4c
1. The mooncakes are delicious.
______________________________!
2. The festival will be fun.
_____________________________!
3. This concert is boring.
_______________________________!
4. I’m really excited.
_______________________________!
5. The band played really loud music.
_______________________________!
How delicious the mooncakes are
What a fun festival it will be
How boring the concert is
How excited I am
What loud music the band played
2. Rewrite these sentences as exclamations.
Self Check
当堂检测
1. 我知道熊猫来自中国。
I know (that) pandas come from China.
2. 我想知道明天是否会下雨。
I wonder if / whether it will rain tomorrow.
3. 我过去觉得数学很难。
I thought/ believed (that) math was difficult in the past.
4. 昨天老师说地球绕着太阳转。(travel around)
Yesterday, the teacher said (that) the earth travels around the sun.
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