八下5单元知识点

八下5单元知识点1. 过去进行时态常用的时间：at this time yesterday/ at that time / at 7:00 last night/ then/ at the time of /when/ while (1)由when引导的时间状语从句，主句用过 去进行时，从句应用一般过去时； 由while引导的时间状语从句，主句用一般过去时，从句应用过去进行时。When the teacher came in, we were talking. = While we were talking, the teacher came in. (2)如果从句和主句的动作同时发生，两句都用过去进行时的时候，多用while引导。如： They were singing while we were dancing. 2.at the time of 在的时候3.walk home 走路回家4.go off 闹铃发出响声5.begin to do sth = begin doing sth 开始做某事6. pick up 接电话，拾起，捡起，接某人，获得，学到 （宾中）7. heavy rain 大雨 rain heavily 雨下得大8.feel like 感觉像，想要 feel like doing 想要做某事=9.in the area 在这一地区10.pieces of wood 几块木头11.make sure 确保，确定12.at first 起初，首先13.fall asleep 入睡（动作）be asleep 睡着（状态 sleepy 困倦的 sleep v.睡觉 n. 睡眠 14.die down 逐渐减弱，消失 15.wake up 弄醒，醒来(动作) be awake 醒着（状态） 16.in a mess 凌乱不堪 17. fallen trees 吹倒的树 broken windows 打破的窗户 18. break apart 把粉碎/分离，让四分五裂 break-broke-broken 19. in times of difficulty 在困难时期20.youre kidding. 你在开玩笑21. be late for .迟到22.by the side of the road 在路边23.wait for sb to do sth 等待某人做某事24.walk by 经过，路过25.make ones way to sw 前往某地的路上26.in history 在历史上27. Dr. Martin Luther King was killed. 被动语态28.the rest of 剩余的29.in silence 沉默 be in silence= be silent 30. the World Trade Center was taken down by terrorists 。 take down 拆除，记录31.have meaning to sb 对某人有意义 the meaning of 的含义32. remember to do sth. 表示“记得去做某事(还没做)”；remember doing sth. 表示“记得做过某事(已做过)” 我会记得告诉她这件事。I will remember to tell her about it.你不记得昨天已经告诉过我了吗？ Dont you remember telling me about it yesterday? 33.have trouble (in) doing sth = have problems doing sth= have difficulty doing sth =have a hard time doing sth =have a difficult time doing sth . 做某事有困难，问题34.point out 指出（宾中） point at 指着 point to 指向35. as well 也,只用于疑问句和肯定句末。