发布时间 : 星期二 文章(完整word)外研社小学英语（一年级起点）四年级下知识点整理，推荐文档更新完毕开始阅读c335411d3369a45177232f60ddccda38376be1f0
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) Don’t 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: It’s not beautiful, but it’s 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, doesn’t） 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）
1
(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, didn’t) ①一般动词变化：
构成法：1. 动词原形+ed. 如：look--looked
2. 以e结尾的词+d. 如：live--lived
3. 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
①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 o’clock.
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
2
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) What’s 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.
3
（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) You’re 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) What’s 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 o’clock. 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 can’t live in the water.
4