loading
初中英语――祈使句
祈使句常常是表达说话人对对方的劝告、叮嘱、请求或命令等。因此，祈使句中一般没有主语，但根据其句意，实际上是省略了主语you。祈使句句末用感叹号或句号，朗读时，常用降调。在表达请求或劝告时，在祈使句前或句末可加上please，以使句子的语气更加缓和或客气。 1. 肯定的祈使句
（1）Do型祈使句：实义动词原形+其他
Stand up, please. = Please stand up. 请起立。请打扫教室.___________________________ （2）Be型祈使句：Be + adj.
Be careful! = Look out! = Take care! 小心 / 当心！请安静._______________________ （3）Let's + 动词原形
Let’s go to school together. 咱们一起上学去吧。咱们一起打篮球吧.______________________ (4) No 型祈使句：No+v-ing/名词（表禁止） eg: No smoking ! No photos! 禁止说话！_________________ 禁止停车！________________ 2. 否定的祈使句 (1) Don't + 动词原形
Don't stand up. 别站起来。Don't be careless. 别粗心。Don't let them play with fire. 别让他们玩火。 请不要在教室里打篮球!______________________________________ （2）Let's ( let sb ) + not + 动词原形
Let's not say anything about it. 对于这件事，咱们什么也别说。 Let them not play with fire. 别让他们玩火。
别让他们打架._______________________________ must “必须”（强调主观意志）；没有人称和数的变化；否定：mustn’t “不准”
你必须今天完成家庭作业._______________________. 你禁止在课堂上说话._______________ Must I clean the classroom? No,__________________/_________________________ have to “必须”（强调客观因素）三人称用：has to; 否定：don’t/ doesn’t have to
他得走了。___________________ 我们没必要周末上课.____________________________ 语法练兵场
1. _______listen to music in the classroom. A. Not B. No C. Don’t 2. _______ late again, Bill! A. Don't to be B. Don't be C. Not be D. Be not
3. _______ cross the road until the traffic lights turn green. A. Not B. Won't C. Doesn't D. Don't 4. Kate, _______ your homework here tomorrow. A. bring B. brings C. to bring D. bringing
5. ________ me the truth, or I'll be angry. A. Telling B. To tell C. Told D. Tell 6. She has to __________her homework every night. A. does B do C. doing 7. Sorry, you _____play basketball in the classroom. A can’t B must C don’t
8. Let’s _____ on time for classes. A be B be not C are 句型转换
1. The teachers often tell the students not to be careless.（改为祈使句）_____ _____careless, please. 2. Please sit next to Nancy. （改为否定句）_____ _____ next to Nancy.
3.Jack has to play the piano every weekend.(改为一般疑问句) _________________________________ 4.Be quick!( 改为否定句)______________________________
5. You can’t eat food in class.(改为祈使句)____________________________ 6.You must walk to school today. (改为祈使句)____________________________ 7.You can’t be late for class next time. (改为祈使句)___________________________
Unit4. Don’t eat in class第一课时 Section A 1a—1c
1. 掌握本课单词: rule, arrive, hallway, hall, listen, fight, sorry,
2. 重点短语：dining hall, arrive late for school, (be) on time, listen to music
3. 重点句型：能正确使用否定祈使句陈述规章要求，对别人的劝告，警告作出礼貌回应 ——Don’t run in the hallways. / Don’t fight.
——Sorry, Ms Clark; 请写出下列短语。
1.在课堂上_________________ 2.校规_________________ 3.做某事迟到_________________ 4.准时_________________ 5.在走廊里_________________ 6.在教室里_________________ 7.在餐厅里_________________ 8.听?_________________ 四. 知识点拨
1. arrive late for school/ be late for school/ come to school late 上学迟到
2. arrive in/ at + 地点 3. in class 在课堂上
get to + 地点 in the class 在班里 reach + 地点 in the classroom 在教室里 3. wear “穿着，戴着”（强调状态） 6. listen to “强调听的动作” put on “穿上”（强调瞬间动作） hear “强调听的结果，听见” be in + 颜色 sound “听起来”系动词后接形容词 课堂达标：请写出下列6个句子。
1.不要在课堂上吃东西。_____________________________________________ 2.不准上课迟到。你必须准时。____________________________________ 3.不准在走廊里跑。_______________________________________________ 4.不准在教室里吃东西。你必须在餐厅吃饭。_________________________ 5.不准在课堂上听音乐。_______________________________________ 6.不准打架。_____________________________________________
1. Don’t arrive late _____school. A. at B .in C. for
2. I can’t go to the party. I _______ do my homework. A must B can C has to 3. --- Don’t eat in the classroom , Alex. ---- __________, Mr Yang A. Excuse me B. Thanks C. Sorry
4. I usually _______ the bus stop at 7:30 in the morning. A arrive B arrive at B arrive in 用can ; can’t ; must; have to ; 填空
1. Alice _____ do her homework, so she goes to ask her teacher for help. 2. You don’t _________clean your room today. 3. ______Jim speak English?
4. --______I help her with Chinese? ---Yes , you must.