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1、九年级英语Unit 4知识要点1. pretend to do sth. 假装做某事 I pretended to sleep just now.pretend +从句 假装 I pretended that I fell asleep.2. be late for 迟到 如：I am late for work/ school/ class/ party.3. a few 与 a little 的区别，few 与 little 的区别 a few 一些 修饰可数名词a little 一些 修饰不可数名词 两者表肯定意义如：He has a few friends. 他有一些朋友。There
2、is a little sugar in the bottle. 在瓶子里有一些糖。 few 少数的 修饰可数名词little 少数的修饰不可数名词 但两者表否定意义如：He has few friends. 他没有几个朋友。There is little sugar in the bottle.在瓶子里没有多少糖。4. still 仍然,还 用在be动词之后，行为动词之前 如：I am still a student.我仍然是个学生 I still love him.我仍然爱他。5. hundred, thousand , million, billion (十亿)词前面有数词或severa
3、l一词时要不能加s ，反之，则要加s 并与of 连用， 表示数量很多 如：several hundred/ thousand/ million/ billion people几百/千/百万/十亿人 hundreds of trees 上百棵树6. what if + 从句 如果怎么办 ， 要是 又怎么样 如：What if she doesnt come? 要是她不来怎么办？What if LiLei knows? 如果李雷知道了怎么办？7. offer sb. sth. 给某人提供某物8. add sth. to sth. 添加到 如：I added some sugar to water.
4、 我把糖添加到水里。9. 系动词与形容词连用 get nervous 变得紧张feel shy 觉得害羞 look friendly 看起来友好10. too +形/副+to do sth. 太而不能 如：Im too tired to stand. 我太累了而不能站。11. help with sth. 如：They help with this problem.help sb. do. 如：They help you relax. 他们帮助你放松12. in public 在公共场所 如:Dont smoke in public. 请不要在公共场所吸烟。13. energetic adj.
5、 活力的如：She is a energetic girl. 她是一个活力的女孩。energy n. 活力 如：She has lots of energies. 她有活力。14. ask sb. to do 叫做某事ask sb. not to do sth.叫不要做某事tell sb. to do 告诉做某事tell sb. not to do sth. 告诉不要做某事如：Teacher asked me to clean the classroom.Teacher asked me not to clean the classroom.15. start doing = start to
6、 do. 开始做某事 如：He started speaking/ to speak. 他开始说话。16. borrow sth. from sb. 从某人那里借来某物 如：I borrowed a book from Lily. 我从莉莉那里借来一本书。17.wait for sb.等某人 如：I am wait for him. 我正在等他。18. introduce sb. to sb. 把某人介绍给某人 如：I introduced Lily to Anna. 我把莉莉介绍给安娜。19. invite sb. to do 邀请某人做某事 如：Lily invited me to go
7、to her home for supper. 莉莉邀请我去她家吃晚饭。20. have dinner/ supper 吃晚饭have lunch/ breakfast 吃午餐、吃早餐21. plenty of 修饰不可数名词，也可以修饰可数名词 许多 如：They have plenty of food/ apples. 他们有许多的食物/苹果。22. 给某人某物 give sth. to sb. 如： give an apple to megive sb. sth. give me an apple 给我一个苹果23. get along with sb. 与相处 如：Do you get
8、 along well with your friends? 你和你的朋友相处得好吗？24. would rather do sth. than do sth. 表示愿做某事而不愿做某事 如：I would rather walk than run.25. whole 整个 26. in fact 事实上27. let sb. down 让某人失望 如：Dont let your mother down. 不要让你的妈妈失望。28. come up with sth. 提出 想出 如：He came up with a good idea. 他提出了一个好主意。catch up with sb
9、. 追上 赶上 如：Lily caught up with Anna. 莉莉赶上了安娜。29. have experience doing 在做某事有经验 如：I have experience teaching Chinese. 我在教英语方面有经验。30. come out 出版，出来 如：The magazine comes out once a week. 这种杂志每周出版一次。31. by accident 偶然地，无意之中 如：Last week I cut my finger by accident. 上个星期我不小心割到自己的手指。32. hurry to do 匆忙 I hurry to call the police.33. more than 超过