Step 1 Review （5 minutes）
1.Game（说出单词的比较级）
2．Free talk 可根据课室的实物或学生认识的事物，利用单词的比较级来说句子，讲得好的学生应及时奖一格（龟兔赛跑）
Step 2 （12 minutes）
1. 电教（图片导入noodles）cheap---cheaper
（1）T: Which are cheaper?
T: cheap, read after me, repeat.
cheap---cheaper（板书）
Ss: cheap, cheap, c-h-e-a-p, cheap
T: These noodles are cheaper than those noodles.（板书） [注意er的读音]
T: cheaper, read after me, repeat.
Ss: cheaper, cheaper, c-h-e-a-p-e-r, cheaper
（2）Ask and answer （Look at the picture of noodles）
T: Which are cheaper?
Ss: These noodles are cheaper than those noodles.
（3）pair work（practice the sentence）
2. 电教（图片导入noodles）good---better
（1）T: Yes , these noodles are cheaper than those noodles, but those noodles are better than these noodles.
good---better（板书） better 是不规则的变化
T: better, read after me, repeat.
Ss: better, better, b-e-t-t-e-r, better
T: Those noodles are better than these noodles.（板书）
（2）Look at the picture and answer
T: Which is better?
Ss: The blue shoe is better than the brown shoe.
3.电教（图片导入two motorbikes about their price）expensive---more expensive
（1）T: Which is more expensive?
expensive---more expensive（板书）
T: expensive, read after me, repeat.
Ss: expensive, expensive, e-x-p-e-n-s-i-v-e, expensive
T: The red motorbike is more expensive than the blue motorbike.（板书） [注意er的读音]
More 表示更多，用在当形容词有三个或以上音节时，则不在词尾加-er,而是在它前面加单词more
T: more , read after me, repeat.
Ss: more, more, m-o-r-e, more
（2）Ask and answer （Look at the picture of desk and chair）
T: Which is more expensive?
Ss: XX is more expensive than XX.
（3）拿来学生的某两件物品
T ：How much is this?
It’s XX. It’s XX.
T: Which is more expensive?
4．电教（图片导入marks）bad---worse
（1）T: Jim’s marks is bad, but Tom’s marks is worse than Jim’s marks.
T: worse, read after me, repeat.
bad---worse（板书） worse 是不规则的变化
Ss: worse, worse, w-o-r-s-e, worse
T: Tom’s marks is worse than Jim’s marks. （板书）
（2）Ask and answer （show the marks about two students）
T: Which is worse?
Ss: XX is worse than XX.
Step 3 （7 minutes）
1．Look at teacher’s mouth and say the word （cheap, good, bad, expensive）
2.Word contest（说出单词的比较级）
3. Look at the pictures and answer the questions
Step 4 （3 minutes）
1. Practice 1 （ D）
2.Excise （写出下列词语的比较级和中文）
（1） cheap----- （2） expensive-----
（3） good----- （4） bad-----
Step 5 （8 minutes）
Chant activity
Step 6 Homework （2 minutes）
1. copy the new words
2. make four sentences about the new words