2022年外研社小学英语四年级下知识点整理,推荐文档 .pdf

1 英语（四年级下）主要知识点整理（例句都是课本中原句）1. 祈使句：表示请求、命令、建议等的句子。祈使句不需要主语，谓语动词用原形，句子末尾一般用感叹号。eg: (1) Dont walk on the grass! （否定祈使句）(2) Let s make a newspaper! （肯定祈使句）2. 一般现在时：经常发生的动作或状态(常与 always, usually, often, sometimes, seldom, never, every day/week/year, on Sundays .连用)(1) be动词的一般现在时：（比较简单）I am, We/You/They are, He/She/It is ， There is+单数名词或不可数名词 , There are + 复数名词eg: Its not beautiful, but its helpful.(2) 行为动词的一般现在时： （单数第三人称的变化是重点、易错点; 助动词用 do, don t, does, doesnt）eg: (1)This machine cuts the potatoes.(2) Does he live in New York?(3) Fish live in the river and birds live in the tree. (* 注意 fish 单数和复数写法一样，这里fish 前面没有 a, 所以是复数形式，后面接谓语动词要用原形。另外， Sheep和 deer单复数也是一样的形式 )3. 一般过去时：表示过去发生的动作或状态 （常与.ago, yesterday, the day before yesterday, last week/year/month, once upon a time, one day, the next day, in 2016. 连用）名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 1 页，共 4 页 - - - - - - - - - 2 (1) be动词的一般过去时：I/He/She/It was, We/You/They were, There was+ 单数名词或不可数名词 , There were + 复数名词eg：Once upon a time, there was a boy. ( 讲故事常用说法 )(2) 行为动词的一般过去时： (助动词用 did, didnt)一般动词变化：构成法： 1. 动词原形 +ed. 如：look-looked2. 以 e 结尾的词 +d. 如：live-lived3. 以辅音字母 +y 结尾的词，改 y 为 i, 再加 ed. 如：study-studied, cry-cried.4. 以重读闭音节或 r音节结尾，末尾只有一个辅音字母的词，双写这个辅音字母，再加 ed. 如: clap-clapped, stop -stopped, prefer-preferred 不规则动词变化：如had, said, put, saw, got, ran, learnt(英式写法 ), bought, came, took, went等eg1: The animals had a concert last week.eg2: The next day, the boy ran to the village again.eg3: What did he play yesterday?eg4: When did you get up last Sunday? I got up at 8 oclock.4. 一般将来时：表示还没有发生但将要发生的事情或动作(常与tomorrow, the day after tomorrow, next year/month/week, soon, in the future, in . minutes/hours/days. 连用 )(1) Be going to+ 动词原形：多表示即将发生，最近打算、计划、安名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 2 页，共 4 页 - - - - - - - - - 3 排好要做的事情，主观性较强(区分人称， be动词变化 am, is, are)eg: She s going to visit Australia.(2) Will+ 动词原形：多表示即将发生的动作或状态，不受主观因素影响的单纯的将来，客观性较强(不区分人称，都用will)(* 目前小学阶段对这两种形式区分并不明显，可以互换使用)eg: We will go to the zoo on Sunday.5. 现在进行时：表示正在进行或发生的动作(常与 now, at present, at this moment连用)Be 动词+动词的现在分词 (* 区分人称，注意动词的现在分词构成的特殊情况）动词的现在分词构成法：(1)一般规则：动词 +ing, 如: work-working.(2) 以 e结尾的动词去掉e加 ing. 如: live-living, have-having.(3) 以重读闭音节或r 音节结尾，末尾只有一个辅音字母的词，双写这 个 辅 音 字 母 ， 再 加ing. 如 : swim-swimming, clap-clapping, refer-referring.(4) 以 ie 结尾的重读开音节的词，改ie 为 y, 再加 ing. 如: die-dying.eg: (1) Whats happening now?(2) Daming is making a card for his father.(3) We are having a party.6. 购物相关话题：（1）I want to buy a pen.（2）It s expensive/cheap.名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 3 页，共 4 页 - - - - - - - - - 4 （3）It costs one hundred and eighteen yuan.（4）Who wants to buy it?7. 音乐演奏相关话题： (* 演奏乐器前要加定冠词the )(1) I played the piano yesterday.(2) Youre playing the violin for your father.(3) My mum and dad played in the concert.(4) In the end, everyone clapped.(* 注意玩球类运动不能加定冠词the, eg:I played football yesterday. ) 8. 时间相关话题：(1) Whats the time now?(2) What time is it now?(3) It s 2 o clock.(4) Is it breakfast/lunch/dinner time now?(5) The Chinese cartoon Shaolin Kids is on TV at 8 oclock.9. 方向相关话题：(1) Where is the library?(2) It s in the north/south/west/east of China.(3) I went to the north/south/west/east.(4) Beijing is the capital of China.10. 原因相关话题：(1) Why do fish live in the river?(2) Because cats cant live in the water.名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 4 页，共 4 页 - - - - - - - - -