小学英语人教版 (PEP)四年级下册Unit 1 My school Part A优秀课件ppt

The second period（第二课时）

Part A Let’s learn & Do a survey and report

▶ 教学内容与目标

▶ 教学重点

能够听、说、读、写形容词的比较级形式“younger，older，taller，shorter，longer”等。

▶ 教学难点

能够根据真实情景在句子中熟练运用形容词的比较级形式。

▶ 教学准备

PPT课件、课文音频、视频、实物等。

▶ 教学过程

Step 1: Warm-up & Revision & Lead-in①

1. Greetings.

2. Enjoy a video about adjectives describing different people.

3. Guess：Who is he/ she?

T：She is young. She is tall and thin. Her hair is short and black. Her eyes are big. She has a small mouth. She wears a yellow dress. She likes dancing very much. Who is she?

Ss：She is…

The teacher gives an example to describe a student in the class. Students try to guess the right person according to these sentences containing adjectives. The student who says the right name can get one score. Then this student goes on giving descriptions about a student in the class. The others guess.

4. Lead-in.

Play a game：Sing a different tune.

The teacher says a word, then students say the antonym of this word.

T: old     Ss: young;

T: long    Ss: short;

T：big    Ss: small;

T: white   Ss: black;

T: tall     Ss: short;

...

◆ Teaching purpose①

视频热身，视频中形容词原级的呈现既引入主题又承接新知。第一个猜谜游戏复习形容词；第二个“唱反调”的游戏为接下来的对比学习做铺垫。

Step 2: Presentation

1. Learn the words “taller, shorter”.②

Choose a tall student. (But this student should be shorter than the teacher.) The teacher stands beside him/her and asks him/her, “How tall are you?”

S：I’m…metres.

T： Oh， you’re tall. But look at me. I’m…metres. So I’m taller than you. And you’re shorter than me.

The teacher uses body language to help students understand the words “taller, shorter”.

The teacher shows the picture of “Let’s learn”.

T：Look at Zhang Peng and John. How tall are they? Please watch the cartoon and answer the questions：

(1)How tall is John?

(2)Who is taller，John or Zhang Peng?

Students watch the cartoon of “Let’s learn” and answer the two questions. Check the answers together.（出示课件）

（Write down the words “tall—taller, short—shorter” on the blackboard. Write “-er” in red chalk.）

（Write down the sentence “I’m…than you.” on the blackboard.）

Lead students to read the words and sentences several times.

◆ Teaching purpose②

教师通过创设真实的场景进行身高对比，引出一对相反的形容词比较级。根据对话回答问题，帮助学生理解文本的意思，并进一步学习“taller，shorter”这两个比较级。

2. Learn the words “younger, older”.③

Show a picture of a baby and an old man on the PPT. （出示课件） Ask students to read the old man’s words.

T：Let’s look at the picture of Miss White and Sarah. Guess what they are saying. Try to fill in the blanks. You can find the answers in your books.（出示课件）

Check the answers together.

（Write down the words “old—older, young—younger” on the blackboard. Write “-er” in red chalk.）

（Write down the sentence “You’re…than me.” on the blackboard.）

Lead students to read the words and sentences several times.

◆ Teaching purpose③

教师利用PPT创设场景，帮助学生对比“old—young，older—younger”。学生模仿old man的语句，自主学习新单词和句型。

3. Learn the words “shorter, longer”.④

The teacher takes out two rulers of different lengths.

T：This is a short ruler. It is shorter. And this is a long ruler. It is longer.

（Write down the words “short—shorter, long—longer” on the blackboard. Write “-er” in red chalk.）

T：Please look at Amy and Chen Jie. (出示课件) They are wearing different clothes. Can you say something about their clothes by using “shorter” and “longer”?

Ss：…

T：Wonderful!

Lead students to read the words and sentences several times.

◆ Teaching purpose④

利用实物展示来对比学习“short—long， shorter—longer”，更加形象易懂。让学生运用所学单词对衣物进行对比描述，对学生的学习能力和表达能力进行拔高训练。

Step 3: Practice⑤

1. High—Low voice.

Practice reading the new words in this way：If the teacher reads the word in a high voice，students should read it in a low voice. If the teacher reads the word in a low voice，students should read it in a high voice.

2. Say a rap.

T：I say “tall”. You say “taller”.

T：Tall.     Ss：Taller.

T：Long.    Ss：Longer.

...

3. Let’s judge.

The teacher says some sentences. Students judge them. If the sentence is true， students sit still. If the sentence is wrong, students stand up and correct it. The first one who stands up will get one score.

Make a model:

T：I’m older than you.

Students sit still.

T：I’m shorter than you.

The shorter students stand up. The first one who stands up says, “You’re taller than me./I’m shorter than you.”

…

Show the rules of this activity on the PPT.

◆ Teaching purpose⑤

分层次练习，充分调动学生的多种感官，活跃课堂气氛，加强学生对新学单词和句型的记忆。

Step 4: Consolidation & Extension⑥

“Do a survey and report”

1. Watch the video of “Do a survey and report”.

2. Divide students into several groups.

Ask questions about each other’s age and height. Write down the information in the table.（课件出示：Do a survey and report板块的表格）

3. Show time：Students stand up and report.

T：You can report in this way, “Wu Binbin is taller than John，but Zhang Peng is taller than Wu Binbin.” If you do a good job，you’ll get one score.（课件出示：该板块的“Report”）

4. Count the scores and find the winner.

◆ Teaching purpose⑥

引导学生完成“调查与汇报”这个活动，巩固本课学习重点，突破难点，培养学生的语言综合运用能力。

▶ 板书设计

▶ 作业设计

1. Write down the key words in the exercise book.

2. Introduce your family members’ age and height in English. And try to compare them.

3. Do the exercises.

▶ 教学反思

1. 趣味性的活动设计激发学生的学习兴趣，调动学生的学习热情，营造积极的学习氛围，很好地吸引了学生的注意力。

2. 采用创设真实场景、图片对比、实物展示等多种方式教学单词，注重学生学习方法和学习策略的培养，引导学生自主学习。

3. 分层次的练习帮助学生由浅入深地复习和巩固所学的新知识，调动学生的多种感官，也增加了学习的趣味性。

4. 整个课时环节紧密、流程清晰，能够很好地达成本课时的教学目标。

5. 创设真实的场景，提出具体的任务，学习目标一目了然，帮助学生在真实的场景里自然地使用所学的新知识。

▶ Teaching Contents & Teaching Aims

Let’s learn

        Learn to listen，speak，read and write the comparative adjectives “younger，older，taller, shorter，longer” through pictures，courseware， natural spelling and other methods.

        Skillfully use the above words to describe the characters’ physical features.

        Understand the basic word-formation rules of comparative adjectives.

Do a survey and report

        Use the words and sentence structures learned in Part A to describe themselves and their classmates.

        Be able to complete the survey and make a summary report based on the survey results.

▶ Teaching Priorities

        Be able to listen，speak，read and write the comparative forms of adjectives，such as younger, older, taller, shorter and longer.

▶ Teaching Difficulties

        Be able to skillfully use comparative adjectives in sentences according to the real situation.

▶ Teaching Procedures