（冀教版）五年级英语上册教案 unit3 Lesson21(2)

Lesson 21《How Can We Go to Beijing？》
一、 教学目标：
1.知识目标：
通过本课学习，使学生正确地说、读、写、用下列单词：airplane train fast slow faster slower.
听懂、会说句型____ is faster(slower) than ____.并能在实际情境中进行运用。
2.能力目标：
会使用句型“faster than；slower than”，进行简短对话。
3.情感态度价值观：
激发和培养学生学习英语的兴趣，训练听、说、读、写能力，调动学生学习的积极性。让学生充分体验成功的快乐，增强学好英语的自信心。
二、教学重点：
1.掌握下列单词：airplane train fast slow faster slower.
2.能够在实际情境中正确运用句型____is faster(slower) than ____.
三、教学难点：
能够在实际情境中正确运用句型____ is faster(slower) than ____.
四、教学教法：
以情景法为主、全身反应法、直观法、听说法、任务驱动法、交际法等教学方法为辅，调动学生各种感官。
五、教具准备：
单词卡片，多媒体课件,录音机。
六、教学过程：
Step1. Organize the teaching.
T: It's time for class.How are you today
S: I’m fine, thanks. How are you
T: I’m very well, thank you.
（通过课前师生的亲切交流，使学生集中注意力，尽快参与到课堂活动中来。）
Step2. To review.
1.Now, look at the pictures. What's this 课件演示bicycle, car,truck,bus的图片，让学生说出与图片相对应的单词。
（设计意图：复习巩固所学过的单词，为接下来的学习作好充分的准备。）
T: Look. What's this (分别出示幻灯片Tian’anmen Square, the Palace Museum.让学生看图回答。)
T: They are beautiful. Where are they Do you know
S: Beijing.
T: What does Beijing look like
S: Great! Beautiful! Good! Big …
(设计意图：以与学生生活接近的著名景点自然的引出本课的有关知识点——北京，激发学生的兴趣。)
T: Beijing is so great! Do you want to go to Beijing (Yes.) OK. Let's go on a trip to Beijing. But how can we go to Beijing
S:By car.(cab,bicycle… )
T:Good.
(设计意图：既复习了学过的各种交通工具，又调动了学习新交通工具train,airplane的兴趣。）
Step3.Using PowerPoint to teach new words.
Today we are going to learn two words about transportation. (课件演示火车图片)
T:What’s this You can say it in Chinese.
S:火车。
T:What’s this in English “train”.
S:train.
T:用trip引出train.
Listen to the tape and follow it.
Spell it in your groups.Write the word while reading it.
（课件演示飞机图片）
T:Look!What’s this You can say it in Chinese.
S:飞机。
T：What’s this in English “airplane”.
S: airplane.
T:用hair引出airplane.
Listen to the tape and follow it.
Spell it in your groups. Write the word while reading it.
幻灯片出示plane，告诉学生plane是airplane的简写形式。
T:Look!This is an airplane.
强调an airplane.
An airplane is fast.
教授fast时以手势来配合教授该词汇！让学生根据教师的手势动作来领会fast是快的意思。
Listen to the tape and follow it.
Write the word while reading it.
（设计意图：以手势教授fast更形象，更容易理解记忆。）
Look！This is a bus.A bus is slow.
同样以手势来配合教授slow.让学生通过教师的手势动作来领会slow是慢的意思。
Listen to the tape and follow it.
Write the word while reading it.
（设计意图：以手势动作来教授slow, 更形象，更容易理解记忆。）
T:Look!(幻灯片出示飞机和火车)飞机比火车快。这句话用英语可以这样说：
An airplane is faster than a train.领读faster.
faster用于描述一种事物比另一种事物的速度快。
A train is slower than an airplane.火车比飞机慢。领读slower.
slower用于描述一种事物比另一种事物速度慢。
出示幻灯片(fast,slow.)
前面我们学习了fast和slow.当单纯形容一种事物快慢的时候用fast,slow.刚刚我们学习了faster,slower.这两个单词用于比较两种事物的快慢。
比较上下两组单词，谁能说说怎样快速记住faster,slower.
让学生回答。
（设计意图：让学生自己去发现规律，从中对比进行记忆，更形象，更好记。）
In this class,we learnt six words.Please remember them.
After while,I will have a test.
让学生到讲台上比赛拼单词，看谁拼的即快又准确。其他同学在下边拼。教师巡视指导。(注意字母的格式)
(设计意图:以比赛的方式检查学生对新学单词的掌握情况，可以提高学生的学习兴趣，并且帮助学生巩固记忆。)
Step4. 教学句型____ is faster than ____. _____ is slower than _____.
T: Please look at the pictures. (课件出示火车和公共汽车图片)
S:______is faster than______.
______is slower than______.
让学生完成填空，课件出示答案。
(课件出示自行车和卡车的图片)
A bicycle is _______than a truck.
A truck is_______ than a bicycle.
让学生完成填空，课件出示答案。
(课件出示小汽车和飞机的图片)
让学生根据前面的练习，自己来说，然后课件出示答案。
A car is slower than an airplane.
An airplane is faster than a car.
通过以上句型的练习，让学生们运用生活中见到过的事物相比较。然后小组内运用日常生活中的事物进行比较，巩固练习此句型。
（设计意图:借助多媒体和图片出示不同的交通工具,鼓励学生模仿说句子,激发学生敢于表达所学句型。通过反复练习比较级句型，使学生学习掌握更扎实。）
T: Now please open your book. Turn to page forty-two.
Let’s listen to the tape and follow it.(Part.1 )
Read this part in your groups. Listen to each other.
Step5.Student Book Part2.
T:Boys ang girls,I want to go to Guangzhou to watch The Asian games.Guangzhou is far from our city. Can I go there by bicycle
S:No.
T:Why
S:Bicycle is slow.
T:How can I go there
S:By car.
T:But I don't have a car.
S:By airplane.
T:Oh. The airplane is fast, but I don't have enough money.How can I go there
S:By train.
T:The train is faster than the bus and cheaper than the airplane. I think I can go there by train. The train is just right for me.Guangzhou is great.Beijing is great too. We know Li Ming and his mother want to go on a trip to Beijing.
How do Li Ming and his mother go to Beijing （幻灯片出示问题）
Let's listen to the tape and find the answer.
Listen carefully.
(设计意图：让学生带着问题听录音，具有目的性，可以集中学生的精力，效果更佳。）
Ask the class to answer it.
Listen to the tape and follow it.(Part2)
Read this part in your groups.Listen to each other.
男女生分角色朗读第二部分。教师给予鼓励。
Step6. summary.
How many words did we learn？（幻灯片出示单词）学生一起读。
（幻灯片出示句型）课下同学们可以把见到的事物进行比较。用这个句型来表达。
Step7.Listen to a new song.
Are you tired Let’s have a rest.Listen to a new song.
Step8. Class Closing.
Homework:
让学生去调查身边的人或事物，写一写_____is faster /slower than _____.
Class is over.
Are you having fun in this class
Good bye!
七、板书:
trip hair
train airplane