暑假复习Units3-4基础知识汇总2022-2023学年牛津译林版七年级英语下册

暑假复习——7B U3-4基础知识汇总 知识点 U3 1. welcome adj. 受欢迎的 1)“Welcome to +地点”表示“欢迎来到……！” 2) welcome后面如果接副词，则应省略介词to。 3）不用谢。 2. nothing = nothing 指物，意为“没有什么东西，没有什么事情” There is nothing in my bag. nobody 指人，意为“没有什么人” There is nobody in the room. none 指人和物，意为“没有一个人或物”，侧重于数量上的没有 None of us knew how to treat her. 3. Wait a minute. =Wait a moment. =Just a minute. 等一会。 wait to do sth. 等着做某事 wait for sb. to do sth. 等某人做某事 4. enough enough + n. enough修饰可数名词复数或不可数名词。 adj./adv. + enough enough修饰形容词时放在其后。 We don’t have enough time to do the homework well enough. 5. maybe/may be maybe 是副词， “也许，大概”, 一般在句首，相当于perhaps，在句中作状语。 may be，“可能是”，情态动词may+be动词，在句中作谓语。 Maybe he is right. = He _______ __________ right. He may be in the library now.= he is in the library now. Maybe he runs fast. = He fast. 6. order n. 命令,顺序,订单 v.命令 order sb. to do sth. 要求某人做某事 keep...in order 使...井然有序 7. 表示建议的句型 Would you like to do sth.? Shall we do sth.? Why not do sth.? Why don’t / doesn’t sb. do sth.? Let’s do sth. How about / What about sth./doing sth.? You’d better (not) do sth. 8. invite invite sb to +地点 邀请某人到... invite sb to do sth 邀请某人做某事 9. try try to do sth. 尽力做某事；努力做某事 try one’s best to do sth. 尽某人最大努力做某事 have a try 尝试一下 10. take作动词，意为“花费”。 It takes(took/will take) sb. some time to do sth.常和sb. spend some time doing sth. 转换。 我上学大约要花费15分钟的时间。 It me about 15 minutes go to school. = I about 15 minutes to school. 11. expensive expensive与cheap表示东西、货物的贵贱。high与low表示价格的高低。 This watch is expensive. The price of this watch is very high. 12. famous be famous for 因...而出名 be famous as 作为...而出名 be famous among 在...中出名 13. look forward to doing sth. 期待做某事 14. in front of & in the front of in front of 表示在物体外部的前面。 She is standing in front of the blackboard. in the front of 表示在一样内部空间的前部。 She is standing in the front of the classroom. 15. 时间介词辨析 at 多用于表示具体的钟点时刻