摘要:
该初中英语课件聚焦宾语从句(that, if/whether引导)和感叹句,结合节日主题(如泼水节、端午节)导入,通过感叹句表达个人反应引入语法,构建从语境感知到规则学习的支架,梳理宾语从句三要素及感叹句结构。
其亮点在于语境化语法教学,结合节日例句和语篇阅读提升语言能力,通过if/whether对比、否定前移辨析培养思维品质,配套练习和小组活动强化学习能力,助力学生学以致用,教师可高效开展语法教学。
内容正文:
Unit2
I think that mooncakes are delicious!
Grammar Focus 4a-4c
怀化市榆树湾中学 谢美骄
Unit2
I think that mooncakes are delicious!
Section A Grammar Focus-4c
Unit2
I think that mooncakes are delicious!
Grammar Focus 4a-4c
怀化市榆树湾中学 谢美骄
1. Learn to use exclamatory statements(感叹句) to give personal reactions about festivals.
What fun the Water Festival is!
How fantastic the dragon boat teams were!
2. Master the usage of objective clauses with that, if/ whether.
1) I know that the Water Festival is really fun.
2) I wonder whether June is a good time to visit Hong Kong.
3) I wonder if they’ll have the races again next year.
特别提醒:
在I/ We think/ guess/ believe/ suppose等后接宾语从句时,如果宾语从句要表达否定意思,则一般将否定转移到主句上来,即“否定前移”。
e.g. I don’t think the girl can do the work alone.
我认为女孩自己做不了这份工作。
Grammar Focus
I know that the Water Festival is really fun. What fun the Water Festival is!
I wonder if they'll have the races again next year. How fantastic the dragon boat teams were!
I wonder whether June is a good time to visit Hong Kong. How pretty the dragon boats were!
I believe that April is the hottest month in Thailand. How delicious the food is in Hong Kong!
找出宾语从句和感叹句。
Ⅰ. if和whether引导宾语从句时,作“是否”讲,一般情况下,二者没有区别,可以换用。但if常用于口语中,whether比较正式。如:
Millie asked if/whether he liked this sweater.
米莉问他是否喜欢这件羊毛衫。
The fisherman wants to know if/whether it will rain.
渔民想知道天是否会下雨。
Object clauses with if and whether
由if / whether引导的宾语从句
Ⅱ. if和whether引导宾语从句时,要注意宾语从句三要素,即连词、语序和时态。由于if和whether连接的是一般疑问句,因此要注意把从句语序改为陈述句语序。如:
Does Mr Zhao live in Room 208? Could you tell me?
→Could you tell me if/whether Mr Zhao lives in Room 208?
I学习语法--2.教师点拨
Ⅲ. if和whether的区别
二者在下列几种情况下不能换用:
1. 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。
2. 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。
Can you find the objects?
动词后跟宾语
I love apples.
I saw them.
I like eating mooncakes.
I decide to admire the moon.
名词作宾语
代词作宾语
动名词作宾语
不定式作宾语
介词后跟宾语
I am interested in festivals around the world.
What is the objects?
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8
什么是宾语从句?
I love apples.
I know that the Water Festival is really fun.
主语
谓语
宾语
主语
谓语
引导词
简单句
宾语从句
含有宾语从句的复合句
主句
在复合句中充当宾语的从句叫宾语从句
总结:
含有宾语从句的复合句的句式为:
主语 + 谓语 + 引导词 + 从句
2.由从属连词 whether, if 引导的宾语从句
I want to know if/whether she is right .
They didn’t know whether Tom could come back or not .
if/whether 引导宾语从句 表示“是否”
if/whether可互换, 但whether…or not为固定搭配.
3.由连接代词 Who, whom, whose, which, what 和连接副词 where, how, why, when引导的宾语从句
e.g.
1.Do you know whose book it is ?
2.Please tell me when we’ll have a meeting .
3.Could you tell me why the train is late?
4.He asked who could answer the question.
宾语从句的时态
1.主句是一般现在时,则宾语从句根据实际情况使用任何时态。
e.g. He says that he came to London last month.
他说他上个月来的伦敦。
2.若主句是过去时态,从句须用过去时态的某种形式。
e.g. He believed he would win the game.
他相信他会赢得这场比赛。
3.若宾语从句表示的是一个客观真理、谚语或者事实时,即使主句是过去时,从句也用一般现在时态。
e.g. Yesterday our teacher said no news is good news.
昨天老师说没有消息就是好消息。
These plants will produce food and oxygen that we need to live on Mars.
Scientists will develop plants that can grow on Mars.
People think that humans on Mars have to wear special boots to make themselves heavier.
We all know that Mars is a planet in the solar system.
The journey to Mars could take only a very short time in space shuttles that travel at half the speed of light.
Some scientists do not believe that the journey to Mars will be very comfortable.
Which of the following sentences has an object clause?
√
√
√
根据汉语句子的意思完成下列英语句子
1. 我认为玛丽不回来了。
I don’t think Mary ______ ______.
2. 山姆跟我说他准备去上海。
Sam told me that he _______ _______ for Shanghai.
3.我想知道今天晚上还有没有去北京的火车。
I want to know _________ there is a train to Beijing.
will
come
was
leaving
if / whether
1).whether和if都可以引导宾语从句
eg: I don’t know whether or not he will come.
注意:如果or not放在whether所引导的从句
句尾,则可以用if来替换。
I don’t know whether/if he will come or not.
eg: I worry about whether I hurt her feeling.
注意whether和if的使用区别
a.当whether后紧跟or not时,不用if.
b.介词后面的宾语从句不能用if.
2).引导主语从句置于句首时,只能用whether
e.g. Whether he comes or not makes no difference.
3). Whether可以引导表语从句和同位语从句,if不可以
4).用在动词不定式之前时用whether不用if。
I don’t know whether to go there at once.
我不知道是不是该立刻去那里。
He asked me whether I wanted to go there by train or by bus.
他问我是想乘火车还是坐公共汽车去那里。
注:whether和or一起还有“不管”之意,引导让步状语从句。
Whether he drives or takes the train, he will be here on time.
不管开车来还是乘火车来,他都会准时到。
c.在强调任意选择时,用whether…or,此时不用 if 替换whether。
e.g. Whether he will come I am not sure.
e.g. He asked me whether I’d move to New York if I got the job.
d. 虽引导宾语从句,但为了强调宾语部分,也可把从句放在句首,此时只用whether不用if。
e. 句子中有if 引导的条件句,如再有表示
“是否”的宾语从句,用whether不用if。
Please let me know if you need help.
如果你需要帮助请告诉我。
或:请告诉我你是否需要帮助。对比:
Please let me know whether you need help.
请告诉我你是否需要帮助。
I don’t know if it won't rain tomorrow.
我不知道明天是不是会下雨。
f. 容易产生歧义时用whether不用if来表示
“是否”。
g. 如果宾语从句为否定句时,则只用if不用whether。
下列句子合成一个宾语从句:
1. She can swim.
We know _____ _____________.
She will come back in two weeks
I hear _____ _______________________.
我听说她两周后会回来。
3. He works very hard.
Do you know ______ _________________?
你知道他学习很努力吗?
she can swim
he works very hard
that
she will come back in two weeks
that
that
检测
1. Are you a student ?
Can you tell me __________________________?
2. Has he had supper?
I don’t know _____________________________.
3. Does he like milk ?
I wonder ________________________.
4. Did they watch TV ?
I don’t know _____________________________.
5. Will they come tomorrow?
I want to know__________________________.
whether/ if he has had supper
whether/ if you are a student.
whether/ if he likes milk .
whether/ if they watched TV.
if they will come tomorrow
4b
Read the passage below and underline the objective clauses. If possible write your own sentences about Mother’s Day and Father’s Day using 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 dinner.
one ... the other ...
一个......另一个......
表示特定范围内两个事物的不同情况。
1 . Why is the train late ?
Please tell me .
2.How can I get to the station ?
Can you tell me .
3 .What are you doing ?
I want to know .
4 .What time does the train leave ?
He wonders .
why the train is late
how I can get to the station
what you are doing
what time the train leaves
Common 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
n. 领带 v. 捆;束
当其作动词时, 过去式和过去分词均为tied, 现在分词为tying。
4c
Which festival do you like best? Ask your group and report to the class.
e.g. In our group, David’s favorite festival is ... He thinks
that ...
Name Favorite festival Reason(s)
当主句是一般现在时,宾语从句可根据句意,使用需要的任何一种时态。
I hear (that)
Jim ______ to work an hour ago.
he _____ interested in English now.
she _________ (come) tomorrow .
Tom ________ (be)to China twice .
语从句中时态的变化
went
is
will come
has been
一般现在
he ________ to Hong Kong.
he ________ sick.
he ___________ a book .
he ___________ his work.
he ______ (go) to Hong Kong next week .
he ______ (be) sick.
he __________ (read) a book now.
he _________ (finish) his work already.
当主句是一般过去时的时候,宾语从句必须用相应的过去的某一种时态;
He says
will go
is
is reading
has finished
He said
would go
was
was reading
had finished
过去将来时
一般过去时
过去进行时
过去完成时
Exercises
根据句意选出恰当的一项填空。
1. ______ (What / What a) fine weather it is now!
2. ______ (What / How) warm it is in the classroom!
3. ________ (What / What a) nice shirt you bought!
4. _____ (What / How) fast the young man is walking!
What
How
What a
How
用所给动词的正确形式填空
1.I told he __________ (come) back in a week.
2.Our teacher told us that light_______ (travel)
much faster than sound.
3. Please tell me if she _________ (come) again next time.
would come
travels
will come
将下列句子改为感叹句。
1. The girl is very clever.
_____ ______ the girl is!
2. It is a wonderful experience.
_____ ______ wonderful experience it is!
3. The wind is blowing strongly.
_____ _______ the wind is blowing!
4. The news is exciting.
_____ _______ news it is!
5. The sweaters are very nice.
_____ ______ sweaters they are!
How clever
What a
How strongly
What exciting
What nice
Homework
Preview Section B 1a-1d.
Do the exercises in students’ book.
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