Lesson 20 A Computer Helps! 教学设计

Lesson 20 A Computer Helps!
教学目标：
1.掌握有关介绍使用互联网的单词和短语:enter,key,depend,hide,search,search for,ask sb to do sth,decide to do sth,in this way,hunt for
2.理解表达运用介绍复活节的句型。
3.进一步懂的if 引导的条件状语从句的用法。
重点难点：
1.懂的有关复活节的单词:date,festival,delicious,egg,hunt,chocolate
2.理解介绍复活节:
Easter is an important festival in Western culture.
Easter does not fall on the same day each year.
People celebrate Easter with their family and friends.
3.懂的以下重点句子:
I decided to do all of my research on the Internet.
It’s one of the biggest holidays in many countries.
The date depends on the moon,but it is always in March or April.
In this way,it is like the Chinese Spring Festival.
教学思路：
本课时的教学内容是冀教版八年级下册英语第四单元的第二课时,主要涉及介绍复活节的情况。在授课之前先让学生通过网络查询有关复活节的知识。课上可以让学生通过小组合作的形式相互交流;教师通过幻灯片、图片向学生展示复活节的照片,同时告诉学生如何用英语介绍这些复活节活动,掌握复活节,掌握西方文化。
教学准备：
设计教学PPT,录音机,多媒体,图片,照片和单词卡片。
教学过程：
StepⅠ.Lead in
Leading in 【情景1】
T:Do you know of Easter?
Ss:Yes/No.
T:What do you know about Easter?
S1:It’s a festival in Western countries.
S2:Eggs.
T:How do people celebrate Easter?
S3:Eat chocolate rabbits.
S4:Look for eggs.
Show some pictures about Easter to the class.Let the students discuss the questions in groups.Then let them present their results in front of the class.
[设计意图]　利用学生学过的内容,以提问的方式开始,轻松进入语境,进而介绍生词,照片使学生感兴趣,运用学生所学的知识与照片相结合。
Leading in 【情景2】
Greet the class.
T:Hello! Boys and girls!
Ss:Hello! Mr./Ms.XX.
Ask the students to introduce Western festivals in class.
S1:April Fools’ Day!
S2:Christmas!
S3:Easter!
Show the new word “Easter” and show the picture of Easter to the students.
T:What do you know about Easter?
S4:An important day.
S5:A traditional festival.
S6:Families and friends get together!
…
[设计意图]　运用学生所学的知识,从谈论熟悉的入手进入新内容的学习,运用实物或图片帮助学生学习生词,直观、感性、形象。
StepⅡ.Presentation
If some students feel the passage is too long,the teacher can divide it into two or three parts.Then ask them to read them in groups.After a while,ask them to read the passage one by one.
Please pay attention to the long sentences:
(1)When Ms.Liu asked us to write a report about Easter,I decided to do all of my research on the Internet.
(2)It’s one of the biggest holidays in many countries.
(3)In this way,it is like the Chinese Spring Festival.
(4)Children use baskets to collect coloured eggs when they go hunting for Easter eggs.
[设计意图]　分小组朗读课文,看一看哪一组读得好。在竞争中整体懂的本课内容。
StepⅢ.Listening
T:Listen to the tape with your book closed and fill in the blanks.
1.Easter is an important festival in Western 　　　　.?
2.Easter is often in March or　　　　.?
3.On Easter Day,many children have egg hunts and eat 　　　　rabbits.?
【Keys】　1.culture　2.April　3.chocolate
[设计意图]　加深同学们对细节的懂的,学生们在有了一定的信息输入之后,才能在这一部分写出所缺信息。
StepⅣ.Post-listening Activities
After listening to the tape,get the class to read them aloud.
Ss read aloud.Focus on the stressed words,pronunciation and intonation.
[设计意图]　学生在听了细节之后,朗读巩固,训练学生的语音语调,培养学生运用目标语言进行交际的能力。
StepⅤ.Reading
1.Read the text and answer the following questions.
(1)What does Ms. Liu ask her students to do?
(2)What does the date of Easter depend on?
(3)How do people celebrate Easter?
2.Then ask some volunteers to read the passage.
3.Read the text again and finish No.2 in Let’s Do It!
【Keys】　1.(1)Write a report about Easter.　(2)The moon. 　(3)People celebrate Easter with their family and friends. They eat delicious food together.　3.festival　hides　symbols　celebrate
☆教材解读☆
1.When Ms.Liu asked us to write a report about Easter,I decided to do all of my research on the Internet.?
◆ask 意思是“请求,要求”,构成短语ask sb to do sth,意思是“请求或者要求某人去做某事”,其中的动词不定式作宾语补足语,它的否定形式是 ask sb not to do sth,意思是“请求或者要求某人不去做某事”。
　　My teacher asked me to do the homework.
我的老师要求我去做作业。
My teacher asked me not to do the homework.我的老师要求我不去做作业。
◆decide是动词,意思是“决定”,常常构成以下结构:
(1)decide to do sth意思是“决定去做某事”。
She decides to buy a new watch.
她决定去买块新手表。
(2)“decide +that 从句”意思是“决定……”。
They decide that they will climb the mountains tomorrow.他们决定明天去爬山。
(3)“decide+ wh- 疑问词+其他”意思是“决定……”。
We can’t decide who will be the winner.
我们不能决定谁是胜利者。
2. It’s one of the biggest holidays in many countries.?
“one of + the+ 形容词的最高级+ 可数名词复数”意思是“最……之一”。
Lucy is one of the tallest girls in the class.
露西是班上最高的女生之一。
【拓展】　“one of+名词或者名词短语”表示“……之一”,其后面的名词一定要用复数形式,如果复数名词前面有the only 这一类的限制性的词语,而且后面有定语从句,定语从句中的谓语动词要用单数形式,这个时候构成“the only of + 复数名词”结构,表示“……中唯一一个”。
She is the only of the children to go to the college in her family.她是她家唯一上大学的孩子。
3.In this way,it is like the Chinese Spring Festival.?
句中 way 意思是“方面”,而in this way则表示“从这个方面来说,在这一点上”,用来指出从某些方面看待什么事情或者什么观点。
In this way,he is a good student.
从这点上说,他是个好学生。
【拓展】　(1)in some/many ways表示“从某些或者许多方面来说”。
She is a great teacher in many ways.从许多方面来说,她都是一个很棒的老师。
(2)in every way表示“从各个方面来说”。
Lucy is a good girl in every way.
从各个方面来说,露西都是个好姑娘。
　　4.Children use baskets to collect coloured eggs when they go hunting for Easter eggs.?
hunt 作不及物动词,意思是“搜寻,搜索”,构成短语hunt for sth,意思是“找寻或者搜索某事”,相当于search for sth。
Children are hunting/searching for beautiful stones in the sands.孩子们正在沙子里寻找美丽的石头。
【拓展】　hunt 作动词时,还可以表示“打猎”。这个时候,它既可以作及物动词,也可以作不及物动词。
Tigers hunt some small animals as food.
老虎猎杀一些小动物当食物。
[设计意图]　学生通过阅读课文,掌握重点内容,并且通过回答问题来巩固对课文的理解和懂的;朗读课文并完成课后题2,掌握课文重点内容。
StepⅥ.Complete Let’s Do It!
Ask the students to read the lesson and finish No.1,No.2 and No.3.Read for several times until the students can understand the lesson themselves.Ask the students to finish them in groups.
[设计意图]　Let’s Do It! 中的No.1、No.2和No.3 都是针对课文内容的。认真阅读课文,训练阅读能力。同时分组教学培养合作精神,训练阅读能力。
StepⅦ.Task
Ask students to come to the front of the classroom,and some start walking towards others as the teacher says “go”.They must stop as the teacher says “stop”.Then they can make a new group to finish No.4.
[设计意图]　No.4的重点是训练本课内容的拓展延伸,掌握中国的传统节日春节,注意课文内容,考查学生的分析总结能力,尤其是口语表达,同时掌握中西方文化的差异。
StepⅧ.Exercises
T:Now,look at the sentences with some missing words.Please use your own words to fill them.
1.I 　　　　(决定) play sports every day.?
2.The Yellow River is 　　　　(之一) the longest rivers in the world.?
3.　　　　(用这种方式),we solved the problems easily.?
4.Can you make a kite　　　　(为我)??
5.We 　　　　(确信) that he can succeed.?
【Keys】　1.decided to　2.one of　3.In the way 4.for me　5.are sure
[设计意图]　以学评教、强化落实。当堂检测主要是由本节内容组成的形成性评价,逐渐减少呈现句中的信息,让学生补充,让他们得到充分的训练。
Step Ⅸ.Homework
1.Read the lesson loudly with your group members.
2.Copy the new words twice.
[设计意图]　口头练习和单词记忆相结合,复习、归纳,注重语言知识的操练与积累。
Lesson 20　A Computer Helps!
enter,key,depend,hide,search
search for,ask sb to do sth,decide to do sth,in this way,hunt for
Easter is an important festival in Western culture.
Easter does not fall on the same day each year.
People celebrate Easter with their family and friends.
…I decided to do all of my research on the Internet.
It’s one of the biggest holidays in many countries.
The date depends on the moon,but it is always in March or April.
In this way,it is like the Chinese Spring Festival.
教材习题解答
【Lesson 20】
2.festival,hides,symbols,celebrate