Unit 4 Don27t eat in class知识点总结

Unit 4 Dont eat in class.知识点总结短语：1. in class在课上in the classroom 在教室里2. arrive late for class = be late for class上课迟到 arrive in + 大地方 arrive at + 小地方3. (be) on time 准时 4. fight with sb. 和某人打架5. must + 动词原形 必须做某事 = have to do sth. 不得不做某事6. bringto 把带到来 Bring your book to school (me).7. eat outside在外面吃饭 wear a uniform穿制服wear glasses 戴眼镜8. practice the guitar练习吉它practice playing the guitar 练习弹吉他9. on school nights在上学的晚上 on school days在上学的日子10. too many + 可数名词复数 too much + 不可数名词 表示太多11. make ones bed 铺床 make breakfast 做早饭 make friends 交朋友help sb. do sth.help sb. with sth.help sb. with doing sth.12. 13.too 肯定句中表示“也”。either 否定句中表示“也” I can play chess. She can, too. I cant play chess. She cant, either. I cant watch TV, I cant play chess either.14.think about = think of 考虑、认为 如：How do you think about this sweater? 你觉得这件毛衣怎样？15. make rules 制定规则follow the rules 遵守规则break the rules 违反规则 16. keep (+名词或代词)+形容词，表示保持某物怎么样 keep quiet 保持安静keep your hair short保持头发短 keep your room clean 保持房间干净17. learn sth. 学习某事 learn English learn the guitar learn to do sth. 学习做某事 learn to speak English / learn to swim learn doing sth. 学习做某事 learn speaking English / learn swimming.18. be strict (with sb.) 对某人严格 My mom is strict with me.19. remember 记住，常用短语有： （1）remember sth./sb. 记住某物、某事、某人Please remember this sentence. 请记住这个句子。 （2）remember to do sth. 记住做某事（事情还没做） Remember to bring your homework to me. 记得把你的作业拿给我。（3）remember doing sth. 记得做过某事（事情已经做了）I remember reading this book. 我记得读过这本书。句子：一、英语祈使句：祈使句是用来表示请求、命令、叮嘱、邀请、劝告或祝愿等的句子。它的特点是以动词原形开头，末尾可用句号或感叹号。祈使句没有疑问句的形式，一般只有肯定和否定两种形式。肯定句否定句Please + 动词原形 + 其他Please come in.Please + dont +动词原形 + 其他Please dont come in.动词原形 + 其他Open the door !Dont + 动词原形 + 其他Dont open the door !Be + 形容词Be quiet !Dont + be + 形容词Dont be quiet !Let sb. do sth.Let me do homework.Let sb. do sth.两种：Dont let me do homework.Let me not do home work.No + 名词No photos !No + 动名词No parking !二、have to & must2. have to 表示“不得不”、“必须”。肯定式：have to + V原 has to + V原否定式：dont have to + V原 doesnt have to + V原疑问式：Do + 主语 + have to + V原 Does + 三单主语 + have to + V原例句：1). Its too late. I have to go to bed.2). They dont have to finish the work today.3). He has to leave home.4). Does he have to leave home? Yes, he does./ No, he doesnt.1.must意思为“必须”；肯定式：must + V原；否定式：must + not + V原； 或 neednt + V原;疑问式：Must + 主语?例句： 1). You must go home now. 2). You mustnt smoke here. 3). Must I do homework now ? Yes, you must./No, you neednt.由must引起的疑问句，肯定回答要用must或have to,否定回答要用neednt或dont have to,意思是“不必”neednt = dont have to二者否定式