仁愛版初三英語上冊全冊教案5

ⅲ. five-finger teaching plan 五指教學方案
step 1  review 第一步  復習(時間:7分鐘)
通過圖片造句，復習本單元重點語法項目——含有情態動詞的被動語態，然后通過判斷句子正誤的方式鞏固section c，導入新課。
1. (多媒體展示一些圖片，學生們根據圖片內容造句，該句子必須是“情態動詞+被動語態結構”，復習本單元語法。)
t:  hello! boys and girls, in this topic we have learned a new grammar, the passive voice with modal verbs. now, let’s look at the screen. make some sentences according to the pictures. please remember that you should use “modal verb + be + p.p.” do you understand?
ss: yes.
t:  (多媒體呈現一個很臟的教室。) here is a classroom. s1, can you make a sentence?
s1: yes. the classroom should be cleaned every day.
t:  good. let’s look at next one. (呈現一幅環境污染圖片。) s2, please?
s2: the environment must be protected by us.
t:  excellent. next one. (呈現一輛壞了的自行車。) s3, you please!
s3: the bike should be repaired.
t:  good. next.(展現一幅小孩用臟兮兮的手在吃蘋果的圖片。) who can make a sentence?
s4, can you?
s4: her hands should be washed before eating apples.
t:  right. let’s look at next one. (呈現一片被砍伐的樹林。)
s5: the trees shouldn’t be cut down by people.
t:  ok, next. (展現科學家們正在認真做研究的圖片。)
s6: scientific research must be done carefully.
t:  you did very well. have you mastered the new grammar?
ss: yes.
2. (多媒體制作一個動漫的聲音。讓學生判斷波利說的上一節課學過的關于火星的內容是否正確。激發學生的興趣，達到復習的目的。)
t: boys and girls. we’ve learned something about mars. do you still remember?
ss: yes.
t: let’s listen to what polly says. are her expressions about mars right or wrong?
polly: mars goes around the earth at a distance of about 228 million kilometers.
ss: no, you are wrong.
polly: it is one fourth as big as the earth.
ss: no, it’s about half as big as the earth.
polly: mars looks like a red and black ball.
ss: no, it looks like a red and orange ball.
polly: it is very beautiful.
ss: yes.
polly: a person weighs 120 kilos on the earth, but only weighs 48 kilos on mars.
ss: yes, you are right.
polly: the temperature on mars is between -120℃ and 20℃.
ss: no, it’s between -138℃ and 28℃.
polly: it takes a spaceship from the earth about eight years to reach mars when the two planets are closest to each other.
ss: no, eight months, not eight years.
t: ok, boys and girls, you did very well. as we know, mars is the fourth planet from the sun in our solar system. this lesson, let’s go on talking about solar system.