一、词语1、名词这里强调两点：不可数名词都默认为单数，所以总是用is 名词复数如何加后缀：各种不同情况变化方法例词一般情况: 1)直接加-sbook-books bag-bags cat-cats bed-beds 以s. x. sh. ch2)结尾加-esbus-buses box-boxes brush-brusheswatch-watches peach—peaches glass--glasses3)以“辅音字母+y”结尾变y为i, 再加-esfamily-families study--studies4)以“f或fe”结尾 ,变f或fe为v，再加-esknife-knives不规则名词复数man-men woman-women policeman-policemen policewoman-police women mouse-mice foot-feet child-children fish-fish Chinese-C hinese英语下册知识点总结一、重点短语讲解1.play with 和…一起玩,play with sb.(某人)和…一起玩,play with sth.(某物)玩某物eg. Lucy and Lily are playing with their mother.Lucy and Lily are playing with their doll.2.a lot of 很多a lot of =lots of+可数名词复数或不可数名词eg. 同义句转换There are a lot of apples on the table.=There are apples on the table.3. how often 多久一次,how often 是一个特殊疑问词，就频率提问。
英语表示频率的词：一次：once 两次：twice 特殊其他次数：基数词+times 构成例如：8次eight timese.g. --How often do you go to the library?I go to the library once a week.(注：如就划线部分提问，应用特殊疑问词how often)4.how many 多少,how many/much 就数量提问.how many+可数名词；how much +不可数名词e.g.-- How many boys are there in your class?There are 40 boys in my class.How much water is there in the bottle? There is a little water in the bottle.5.be good at擅长at后可加名词或动词。
如加动词，应用动名词形式即：v + ing e.g.I am good at English.6.be interested in对….感兴趣in后可加名词或动词。
如加动词，动词应用动名词形式即：v + ing e.g. I am interested in English .7.play the violin拉小提琴,乐器前加定冠词the8.listen to music听音乐, 听…，用listen to1)听音乐前不加定冠词the;2) 听收音机前，要加定冠词the :listen to the radio .e from 来自，come from=be from ,I come from China. =I am from China.易错点：Where are you come from? (错误) Where do you come from? (正确)10. play football 踢足球{球类名词前不加冠词}11．be famous for因…闻名12. have a look at 看一看have a look at =look at13.how much 多少（钱）,how much 用来询问价格14.a pair of 一双，一对；a pair of glasses, a pair of trousers15. try on 试穿试穿鞋子try on the shoes=try the shoes on; 试穿它,此处它是代词,只能放在try on之间try it on16.see a doctor看医生常用表示“看”的单词有：watch; see; look; read ;watch:用于看电视，比赛等；watch TV, watch football match see: 看见强调结果，看到什么；看电影、看医生时用see a film; see a doctor17. take good care of好好照顾take (good) care of=look after18. have a fever发烧have +表示症状的单词have a fever; have a toothache; have aheadachehave +病名have measles (麻疹) have mumps (腮腺炎)19. have to不得不Eg: Her mother is ill, she has to look after her mother, so she can’t come to the party.重点：含有have to的句子变否定用don’t doesn’te.g. She has to finish her homework.变否定句为：She doesn’thave to finish her homework. (正确)20. worried about 担心She worried about her exam.21.help with帮助…做某事help with =help sb (to) do sth.Eg: Peter helps her mother with the housework .=Peter helps her mother (to) do the housework.二、重点单词用法1.call v称作What do you call in English?2.Like v 喜欢1)like sth. I like English very much2)like to do sth.I like reading very much, but I don’t like toread now.3)like doing sth. 动词原形3.let’s +动词原形Let’s (=let us) make animals. let sb. do sth. 让某人做某事4.want想，想要1)want sth. I want a piece of paper.2)want to do sth. I want to watch TV.5.情态动词情态动词很简单，没有人称数之变，动词原形后边站。
can 表能力；may许可；should 应该；would 愿；must必须，否定needn’t 换have to不得不表客观三、重点语法A)一般现在时1.概念：一般现在时表示经常性、习惯性的动作或存在的状态。
2.构成：有两种构成形式（1）b e 型句子的谓语动词只有be(am,is,are)a 肯定句中，只出现be :I am a student．我是一名学生。
b.否定句中，要在be 后面加not，如：She isn't teacher．她不是教师。
c．一般疑问句中，要将be 放在句子开头（注意句首字母大写），句尾用问号，答语用Yes，主语+be．或No，主语+be +not如：Are you ready？—你准备好了吗？—Yes，I am．—是的，我准备好了。
No, I’m not. 我没准备好。
）（2）实义动词型：句中的谓语动词为实义动词（也叫行为动词）：a．肯定句中，只出现实义动词，如：I get up in the morning．我早晨起床。
b．否定句中，要在实义动词前面加do（does）＋not，do（does）作助动词，本身无意义，常与not 缩写成don't （doesn't），如：I don't like vegetables．我不喜欢蔬菜。
c．一般疑问句，要在句子开头加助动词Do（does），句尾用问号，简略答语用Yes，主语+do（does）．或No，主语+do（does）＋not．如：—Do you like oranges？—你喜欢桔子吗？—Yes，I do．—是的，我喜欢。
3一般现在时的用法1)经常性或习惯性的动作，常与表示频繁度的时间状语连用。
时间状语：every…, sometimes,Eg:I leave home for school at 7 every morning.2)客观真理，客观存在，科学事实。
The earth moves around the sun.Shanghai lies in the east of China.3)表示格言或警句中。
Pride goes before a fall.骄者必败。
注意：此用法如果出现在宾语从句中，即使主句是过去时，从句谓语也要用一般现在时。
例：Columbus proved that the earth is round .3)现在时刻的状态、能力、性格、个性。
I don't want so much.Ann Wang writes good English, but does not speak well.B)一般将来时1.概念：表示将要发生的动作或存在的状态及打算、计划或准备做某事。
句中一般有以下时间状语：tomorrow, next day(week, month, year…),soon, the day after tomorrow（后天）等。
2.基本结构：①be going to+ do.②will+do3.否定句：在be动词后面加not或在will后面加not 成won’t。
例如：I’m going to have a picnic this afternoon.否定句为：I am not going to have a picnic this afternoon.4一般疑问句：be或will 提到句首，some改为any, 改为or，第一二人称互换。
例如：We are going to go on an outgoing this weekend. Are you going to go on an outgoing this weekend?四、对划线部分提问。