新目标七年级下册第四单元英语知识点总结

1、学习必备欢迎下载新目标七年级下册英语知识点总结Unit4 Don t eat in class!一、词组、短语1. 祈使句是指动词原形开头， 表达命令或祈求的句子。 其否定句是在句首加 don t构成。2. arrive 到达，抵达arrive at +小地点arrive at school到达学校arrive in +大地点arrive in Beijing到达北京get to +地点get to Beijing到达北京get home到家get there到那儿reach +地点reach Beijing到达北京reach home到家get、 arrive 后接副词是，介词省略。3. b

2、e late for + 名词迟到He was late for school.他上学迟到了。4. outside ( 外面 )- inside(里面 )5. dining hall餐厅，饭厅6.in /at school在上学，在求学in the school在学校里7. have to do sth 不得不做某事8. on school nights 上课期间的晚上9. too many +可数名词“太多 ”too many books太多的书too much +不可数名词 “太多 ”too much homework 太多的家庭作业10. No smoking! = Don t smok

3、e!请勿吸烟！No food! = Don t eat food!禁止吃东西！No + 名词（短语）或动词-ing 形式，表示 “不许，不可，不能”11. later 后来，以后12. by “在 .以前，到为止”I should finished homework by tomorrow. 在明天之前我应该把作业做完。13. be in bed“睡觉，卧床”in bed“卧病在床”in the bed“在床上”go to bed“上床睡觉”强调动作二、重点句型1.Don t arrive late for school Don t be late for school学习必备欢迎下载2.Do

4、n t fight 3.Don t listen to musiclassroominthec.4.Don t run in the hallways5.Don t smoke .It s bad for your health.6.Don t play cards in school7.Don t talk in class8.Don t watch TV on school nights.9.Don t sleep in class.10.Donplaytsports inthe classrooms.11.Don t sing songs at night.12.Don t talk w

5、hen you eat.13.Don t wear hats in class.14.Do homework by 10:00.15.Clean your house!16.Make the bed.17.Can we ? Yes ,we can .No, we can t.Eg: Can we arrive late for class ?No, we can t. We can t arrive late for class.18.Do y ou have to wash your clothes?Yes, I do./No, I don t.三、重点句子1.Don t arrive la

6、te for class.2. Don t run in the hallways.3. Don t eat in the classroom4.Don t listen to music in the classrooms or the hallways.5. Don t fight.6.What are the rules?7. Can we listen to music?8. Do you have to wear a uniform at school?9. What else do you have to do ?10. Don t go out on school night.1

7、1. Practice your guitar every day .12. I have too many rules in my family.13. I can t meet my friends after school because I have to do my homeworkl14.I have to be in bed by ten O clock.15. I have to help my Mom make dinner.16.Later , I have to go to the Children s Palace to learn the piano.17.I nev

8、er have any fun, what can I do?四、重难点精析祈使句通常用来表示命令、请求、禁止、建议、警告等语气。它的主语you( 听话人 ) 通常省略。其构成通常有以下几种形式。1)Be 型（即系动词原型be+表语其他） 。 如： Be quiet,please.否定句 Dont + be+表语 +其他。如： Dont be angry.2)Do 型（即系动词原形宾语其他）。如：Open you books,please.否定句 Dont +实义动词原形 +宾语 +其他。如： Dont eat in the classroom.3)Let 型（即 Let+ 宾语 +动词原形

9、+其他）如：Let me help you. Let s go at six o clock.学习必备欢迎下载否定句一般在宾语后加not。如：Let not watch TV.4)No+V-ing 型（此种形式通常用于公共场合的提示语中，意为No smoking!严禁吸烟！ No talking!不许交谈！ No passing!“禁止做某事 “）如：禁止通行！ No parking!不许停车重难点解析：1. 情态动词 have to 的用法，意思是 " 必须、不得不 " ，它侧重于客观上的必要和外界的权威。（ 1）结构：主语 have to动词原形其他（一般现在时，主语是

10、第三人称单数时，用has to；句子是过去时，用had to.）如： Wehave to wear sneakers for gym class. 在体育课上，我们必须穿运动鞋。Tom has to practice theguitar every day. 汤姆每天必须练习弹吉它。 I had to get up at 5:00 am last Monday. 上周一，我不得不早上 5 点起床。（ 2）否定形式：主语don't have to动词原形其他（一般现在时， 主语是第三人称单数时，用 doesn't have to. 句子是过去时， 用 didn't hav

11、e to ）如： Nick doesn't have to wear a uniform. 尼克不必穿制服。 We didn't have to do our homework at once. 我们不必马上完成作业。（ 3）疑问句： Do （Does 或 Did ）主语 have to 动词原形其他如：Do you have to stay at home on weekends? 周末你必须呆在家里吗？ Yes, I do. / No, I don't. 是的，我必须 .不，我不必。 Did he have to go to bed by 11:00 last ni

12、ght? 昨晚，他不得不11 点前上床睡觉吗？2. 情态动词 can 的用法（ 1）表示能力， " 会"" 能 "（在第一册中已经学习这种用法）Can you play the guitar?你会弹吉它吗？Judy can speak a little Chinese. 朱蒂会说一点中文。 I can dance and sing. 我能唱歌又能跳舞。（ 2）表示允许、许可，"可以 " 、 "能 "（在这一课中新学的词义）Can the students run in the hallways? 学生们可以在走廊上

13、跑吗？We can eat outside. 我们可以在外面吃东西。Can I come in? 我能进来吗？注意 ：同样是情态动词，can 和 have to 的用法是有区别的，和大部分情态动词一样，can 在否定句中，直接在can 后加上 not，在疑问句中，把can 放到主语前面，并且没有人称和数的变化。学习必备欢迎下载3. hear ， listen 和 sound 都有 " 听 "的意思，但三者是有区别的。（ 1） hear"听说 " ，侧重于 " 听 " 的内容I'm sorry to hear that you

14、are ill.听说你生病了，我很难过。I never heard such an interesting story. 我从来没听过这么有趣的一个故事。（ 2） listen" 听 "侧重于 "听 " 这一动作。 Listen to me carefully. 认真听我说。The children like to listen to music.孩子们喜欢听音乐。（ 3）sound" 听起来 " ，它是系动词，后面接形容词等。That sounds great. 那听起来真不错。 It sounds like fun.听起来挺有趣。

15、4. be in bed " 在床上、卧床"in 和 bed 之间不能用冠词，bed 也不用复数。He is in bed for 10 years.他卧床 10 年了。Dave has to be in bed early every night. 大卫每晚必须很早睡觉。5.arrive late for与 be late for 意思相近"迟到 "Don't arrive （ be）late for school.上学别迟到。 I arrived （was）late for the meetingyesterday. 我昨天开会迟到了。6.No talking ! " 禁止交谈！ "no 后面加上名词或动名词（ doing）也表示不要做某事。与 don't +do 的用法相似。 No wetumbrellas! / Don't put wet umbrellas here!禁止放湿雨伞！No food! Don't eat food here!禁止吃食物！No smoking! Don't smoke here!禁止吸烟！7语法（祈使句）祈使句是用来表示请求、 命令、叮嘱、号召或者劝告等的句子，这类句子的主语常是第二人称 you