第四单元知识点复习.ppt

第四单元知识点复习;1. look into 研究，调查 2. do an experiment 做一个试验 3. fill/cover with用……把……装满/盖住；fill in 填上 4. upside down 向下翻转过来 5. right side up 正面朝上 6. turn over 使……翻转;7. in front of 在……前面（在范围外）； in the front of 在……前面（在范围内） 8. on top of 在顶端 9. take sth. off sth. 使某物离开或脱离（一表面或边缘）；take off （指飞机等）起飞，匆忙离去；take sth. off （从身上）除掉、脱下（衣物等） 10. be ready for 准备 11. take away 取走 12. be surprised 使惊奇;13. a spoonful of 一匙 14. dissolve in 溶化，溶解 15. half full of …一半 16. use up 用光，用完 17. enough to do sth. 足够……做某事 二、辨析 1. find , look for , hunt 找 find 强调找的结果，意为“找到” look for 强调动作过程，“寻找” hunt, hunt for sb. sth. 意思寻找，寻找某人某物，与look for 同义。;fill/cover…with… 用……把……装满/盖住 turn…upside down 把……翻转；倒过来 I’m (not) sure (that)… 我（不）确信/肯定…… right side up 正面朝上 scientific method 科学方法 turn … over 使……翻转 turn … off 把……拿开;Yes, I think so. 是的，我这样认为。 No, I don’t think so. 不，我认为不是这样。 take away 取走 have fun doing … 做……有乐趣 use up 用光；用完;1.I fill a jar with water. fill...with...意思是 用...装满... be filled with...=be full of...意思是 充满...如 They filled the hole with water. fill in... 意思是 填上...;填充...; 如 Fill in the blanks. 2.Then,I turn the jar upside down. upside down意思是 向下翻转过来 如 That picture is upside down.You hold the book upside down. right side up 意思是 正面朝上.;3.I think the floor will get wet. get作系动词,意思是 变得 ,后跟形容词作表语.如 The day gets longer in spring. 与get相关的词组有: get along\on(well) with...与...(和睦)相处 get away from...意思是 逃跑 get back意思是 返回;要回或拿回 get into... 上车.如 He got into the car. get off...意思是 下车;从...下来. get up意思是 起床;起身;站起 get together意思是 集合;团聚 get to...意思是 到达... ;4.Im sure the floor wont get wet. sb.be sure+that从句,意思是 认为...一定....否定形式是sb. be sure+疑问词引导的从句.如 Tom is sure that he will win the game. 5.We can prove whos right. prove是及物动词,意思是 证明,证实.常用于以下结构:prove sth.(to sb.); prove(to sb.)that...; prove...(to be)+adj\n;6.Well do the experiment and observe what will happen. observe是动词,意思是 观察.observe sb. do\doing sth.如 I observed her dance.When I passed by the grass,I observed him walking. 1.I will ask