課程內(nèi)容
四年級(jí)英語(yǔ)上冊(cè)Unit 5《Safety》Lesson 2
Look,listen and repeat.
Be careful!Use the sidewalk.
OK!
Please wait for the green light.It's safe.
OK!Thank you.
sidewalk人行道
Please walk on the sidewalk.
請(qǐng)走人行道。
巧記：
side旁邊+walk走=sidewalk人行道
wait for等待
Please wait for me at the bus stop.
請(qǐng)?jiān)诠卉?chē)站等我。
拓展：wait等待
light燈
The lights in this street are very beautiful.
這條街道上的燈非常漂亮。
復(fù)數(shù)：lights
形近詞：right對(duì)的
night夜晚
eight八
派生詞：lighter打火機(jī)
轉(zhuǎn)化：light點(diǎn)燃，點(diǎn)著
合成詞：flashlight手電筒
safe安全的
Please wait for the green light.
It's safe.
請(qǐng)等待綠燈。它是安全的。
形近詞：save挽救
派生詞：safety安全
反義詞：dangerous危險(xiǎn)的
合成詞：safeguard保護(hù)；捍衛(wèi)
OK!Thank you.
好的！謝謝你。
Father:Be careful!Use the sidewalk.
Daughter:OK!
Policeman:Please wait for the green light.
It's safe.
Man:OK!Thank you.
祈使句的特點(diǎn)及類型
課文應(yīng)用：
Be careful!Use the sidewalk.
當(dāng)心！使用人行道。
祈使句是用來(lái)表達(dá)命令、請(qǐng)求、勸告、
警告、禁止等的句子。
祈使句的特點(diǎn)：
（1）祈使句通常省略主語(yǔ)（you），但是要想指明服從這項(xiàng)命
令的人，可以在祈使句的前面或后面加上姓名或稱呼。
（2）祈使句里使用的動(dòng)詞一般用動(dòng)詞原形。
（3）祈使句主要用于要求對(duì)方（第二人稱）做某事，當(dāng)對(duì)第一人稱
或第三人稱有所命令時(shí)，要用Let型祈使句。
例如：Let him clean the classroom.
讓他打掃教室吧。
（4）please可以用于祈使句的開(kāi)頭或末尾，表示委婉語(yǔ)氣，在含有
don't的否定句中，please用在don't的前面或句末。
例如：Please sit down.請(qǐng)坐。
Please don't jump in the room=Don't jump in the room，please.
請(qǐng)不要再房間里跳。
祈使句的用法
祈使句主語(yǔ)常省去，只用謂語(yǔ)就可以。
表示請(qǐng)求或命令，加上please表客氣。
如果變成否定句，加上don't是規(guī)律。
Look，think and role-play
Be careful!Please wait for the green light.
It's safe.
當(dāng)心！請(qǐng)等綠燈。它是安全的。
OK!Thank you.
好的！謝謝你。
Don't read in the street.
不要在街上讀書(shū)。
It's dangerous.
它是危險(xiǎn)的。
OK!Thank you.
好的！謝謝你。
The light is green.Please go.
是綠燈了。請(qǐng)走吧。
OK!
好的！
Don't play football in the street.
不要在街上踢足球。
It's dangerous.
它是危險(xiǎn)的。
Be careful!Use the sidewalk.It's safe.
OK!Thank you.
Ask and answer
Look,ask and answer.
Fire safety
In the forest
At home
What mustn't we do...?
We mustn't...
smoke
play with matches
play near fires
Look and learn
Don't start campfires.
=We_.
Don't play near fires.
=We_.
Don't play with matches.
=We_.
Match and say
In the forest
At home
At school
a Don't smoke.
b Don't play with matches.
c Don't start campfires.
d Don't play near fires.
Fire can start in/at...
We must be careful.
In/At...We mustn't...
Let's write
Be careful!Use the_.
Please wait for the_.It's safe.
此內(nèi)容正在抓緊時(shí)間編輯中，請(qǐng)耐心等待
王老師
女，小教高級(jí)職稱
高級(jí)教師，名師，骨干教師 ，學(xué)術(shù)帶頭人，多次榮獲省市優(yōu)質(zhì)課一等獎(jiǎng)。
