人教版七年級(jí)英語(yǔ)下冊(cè)《Don't eat in class》SectionA PPT教學(xué)課件(第3課時(shí)),共40頁(yè)。
Objectives
To learn to use “can” for permission.
To learn to write the rules.
To learn to make questions about rules and answer.
Warming Up
Tell your classmate what the rules should be.
Don’t run in the hallways.
Don’t arrive late for class.
We have to wear uniforms.
探究樂(lè)園
一、祈使句
1. 用法:一般以動(dòng)詞原形開(kāi)頭,表示請(qǐng)求、命令、勸說(shuō)、警告等。在祈使句中,通常省略句子主語(yǔ)第二人稱(chēng)you。
2. 句子結(jié)構(gòu)
(1) 肯定句:__________+ 其他
在餐廳里吃東西。
Eat in the dining hall.
在音樂(lè)教室里聽(tīng)音樂(lè)。
Listen to music in the music room.
騎自行車(chē)去上學(xué)。
Ride the bike to school.
Language points
have to 的用法
have to意思是“必須、不得不”,它側(cè)重于客觀上的必要和外界的權(quán)威。
1) 結(jié)構(gòu):主語(yǔ)+have to+動(dòng)詞原形+其他(一般現(xiàn)在時(shí), 主語(yǔ)是第三人稱(chēng)單數(shù)時(shí),用has to;句子是過(guò)去時(shí),用had to。) 如:
We have to wear sneakers for gym class.
在體育課上,我們必須穿運(yùn)動(dòng)鞋。
Tom has to practice the guitar every day.
湯姆每天必須練習(xí)彈吉它。
I had to get up at 5:00 am last Monday.
上周一,我不得不早上5點(diǎn)起床。
2) 否定形式: 主語(yǔ)+don’t have to+動(dòng)詞原形+其他(一般現(xiàn)在時(shí),主語(yǔ)是第三人稱(chēng)單數(shù)時(shí),
用doesn’t have to;句子是過(guò)去時(shí),用didn’t have to)
e.g. Nick doesn’t have to wear a uniform.
尼克不必穿校服。
We didn’t have to do our homework at once.
我們不必馬上完成作業(yè)。
3) 疑問(wèn)句:Do (Does 或 Did)+主語(yǔ)+have to +動(dòng)詞原形+其他
如: --Do you have to stay at home on weekends?
--Yes, I do. / No, I don’t.
周末你必須待在家里嗎?
是的,我必須。/ 不,我不必。
Did he have to go to bed by 11:00 last night?
昨晚,他不得不11點(diǎn)上床睡覺(jué)嗎?
Homework
Write down ten sentences about what you can or can’t do in your house.
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