七年级英语Unit12Don’teatinclass.人教新目标版知识精讲
七年级英语Unit 12 Don’t eat in class.人教新目标版
【本讲教育信息】
一. 教学内容：
Unit 12 Don’t eat in class.
二. 语言功能
Talk about rules
can / can’t for permission or not permission.
三. 语言目标
Learn to use positive and negative Imperatives.
The usage of modal verbs can and have to.
Understand the meaning of some signs.
四. 语言结构
Listen to the teacher. Don’t look out of the classroom.
Can we wear hats? Yes, you can / No, you can’t.沈梦辰资料
You don’t have to do your homework right now.
五. 重点词汇
rule, arrive, classroom, dining hall, hallway outside,
fight, uniform, sports shoes, have to, gym
六. 重点句型吴昕 泰子椰
—Don’t run in the hallways.
—Sorry, Ms Clark.
I have to be in bed by ten o’clock. No parking!
Can you go out tonight? No, I can’t.
火炬之光2如何联机七. Key Points：（重点难点解析）
1. 祈使句
祈使句分肯定及否定两种形式。以动词原形开头的为肯定式，以Don’t开头的为否定式。如：Look at the picture.（肯定）Don’t look at me.（否定）
为了表达委婉的语气，可在祈使句的开头或末尾加please。如：
Please give me a hand. Don’t tell it to anyone else, please.
由以上可知，祈使句为表示命令，请求等的句子。
2. arrive, reach, get
以上三词均可表示“到达、抵达”之意，但用法不同。arrive后接at（小地方）或in（大地方—
—城市、国家）reach直接连“某地”，get加to后再接某地。如：
I arrived in Beijing yesterday. They reached the Great Wall by bus. How can I get to the TV station? 若要表示“到家/这儿/那儿”时，用arrive / reach / get均可。即：arrive / reach / get home
/ here / there
3. in class 和in the class
in class 表示“在上课”，而in the class 表示“在班上”。 Don’t talk in class.上课时不要谈话。
There are 40 students in the class.这个班有40位学生。 类似的短语还有：
at table at the table in hospital in the hospital out of question out of the question in front of in the front of 在进餐
在桌上
（生病等）住院在医院毫无疑问不可能的在……的前面在……的前部
4. have to 和must
must 表示“必须、应该”，是从主观出发的，同时must 意味着一种“责任”与“义务”。如：
We must help our parents do some housework. have to “必须”“不得不”，常表示受外界环境、条件所迫要做的事。如： There is nothing in the fridge. I have to go shopping now.
5. else 其他的
else 表示“其他的，此外”，常被置于特殊疑问句、不定代词之后。如： Do you have anything else to say? Where else did you do?
6. Ms 女士
英语中表示“先生、女士”的词有Sir, Madam, Mr, Mrs, Ms, Miss 等。一般地，Mr 指“先生”，已婚或未婚，Mrs 指“女士、夫人”，为已婚妇女。Ms 指“女士”，指婚姻状态不明的女士，Miss 指“小组”，为未婚女士的称呼。 以上称呼后可接“姓氏”（family name ）
Sir 先生，泛指不认识的男性，或专称或讽刺，Madam 泛指不认识的女性，表示“夫人、太
太”。Sir 和Madam 后不能接姓氏名词。
I. 按要求答题。
1. Talk in class.（变成否定祈使句）
_____________________________________________________________ 2. We have to listen to the teacher.（变成一般疑问句）
_____________________________________________________________
3. Can she wear a hat in the class?（给出否定回答）
_____________________________________________________________
4. Don’t fight in school.（变成意义与此句相近的句子）
_____________________________________________________________
5. She has a lot of homework to do, so she has to go to bed late.（变成否定句）
_____________________________________________________________
II. 用适当的介词填空。
真三国无双61. Students can’t listen ___________ music ___________ the hall ways.
2. Don’t be late ___________ school.
3. Look ___________ the photo! Can you think ___________ something?
4. ___________ fact, cooking is ___________ moms.
5. ___________ the afternoon, I helped my sister ___________ her homework.
6. ___________ the evening of October 1st, I went out ___________ a walk ___________ my family.
7. What does your dog ___________? We can help you look ___________ it.
8. What size bowl ___________ noodles would you like to have ___________ your dinne
r?
9. I get up ___________ eight ___________ the morning ___________ Saturday.
北美10. Don’t play games ___________ the computer any longer.
Keys:
I.
1. Don’t talk in class.
2. Do you have to listen to the teacher?
3. No, she can’t.
4. We can’t fight in school. / No fighting.
说说带图片
5. She doesn’t have a lot of homework, so she doesn’t have to go to bed late.
II. 1. to, in 2. for 3. at, of 4. In, for 5. In, with 6. On, for, with 7. look like, for
8. of , for 9. at, in, on 10. on
研读教材
1. after在……之后
after school放学以后after class下课之后
After you!先请！look after照顾，照看
the day after tomorrow后天run after sb追赶某人
2. Don’t go out on school nights.
有课的晚上不要出去。
表示“在晚上”要用at night；当night前有限定词，表示在具体某个晚上时，其前要用on。如：on a cold winter night在一个寒冷的冬天的夜晚；in the night表示“在夜间”。
3. too many rules
too many后接复数的可数名词表示“太多的”。如：too many books, too many films.
too much后接不可数名词。如：too much homework, much too“太，非常，……极了”之意，后接形容词或副词。如：The TV show is much too boring.
4. I have to b e in bed by ten o’clock.
十点之前我得睡觉。
in bed躺在床上，by等于：not later than（不迟于，到……时为止）如：She’s ill in bed.