2021九年级英语知识点

1、九年级英语知识点 将重要的知识点熟记于心，会让你在英语考试中取得好成绩。下面是 _的英语知识点以供大家学习。 1. later、after、ago、before的用法：“一段时间+later/ago”分别表示“(多久)以后/以前”，主要用于过去时态。“after/before+某个时刻”分别表示“在某时刻之后/之前”，此时两个词是介词。ago与before：ago只能用于过去时，before用于完成时。如：He had an aident a week ago.(一周前出了一个事故)/ Some years later, the boy became a very famous singer.

2、(数年后这个男孩成了著名的歌唱家)/ Have you been there before?(你从前到过那儿吗?)/ After a few years he gave up smoking.(过了几年他戒了烟。) 2.above、below、over、under的用法：在上下方用above和below，在高低处用over和under。如：The stars are high above in the sky.(星星高挂在空中) / A plane flew over quickly.(一架飞机从头顶飞过。) 当above、below、over、under是介词性质时，意义相似。 3.asas

3、常构成一些词组：as soon as(一旦就)， as well as(同样)，as+形容词/副词+as possible(尽可能地)。如：Please ring me up as soon as you get to Bei _g.(请你一到北京就给我写信。)/ Miss Gao hurried to the school gate as quickly as possible.(高小姐尽快地赶到了校门口。) 注释 “as long / much as + 名词”可以表示“长达/多达”的含义。如：The house costs as much as five hundred thousand

4、 yuan.(那幢房子花费高达50万元。)/ They stayed in the cave(山洞)as long as two weeks.(他们呆在山洞里长达两周。) 4.too、also、either、nor的用法：too(“也”)用于肯定句和疑问句的末尾，且用逗号隔开;also(“也”)用于肯定句谓语动词之前;either(“也”)用于否定句末尾，也用逗号隔开;nor(“也不”)用于倒装句句首;如：Are you American,too?(你也是美国人吗?)/ He is not happy and I am not happy, either.(他不愉快，我也不。) / He di

5、dnt watch the football game. Nor did I.(他没有看赛，我也没有。)/ You can also find the market is very good.(你还可以发觉那个市场很好。) 5. enough、too、so、very、quite、very much的用法： enough (“足够，十分”)放在形容词或副词之后;too(“太”)、very(“非常”)、quite(“相当”)、so(“如此地”)等放在形容词或副词之前，very much(“非常”)放在动词之后。如：Its too/so/very/quite expensive.(它太贵/那么贵/非

6、常贵/相当贵。)/ I dont like sweets very much.(我不很喜欢糖果) 注意 very与 much的区别：very修饰形容词、副词的原级和现在分词形容词，much修饰形容词和副词的比较级;much还可以修饰疑问句和否定句中的动词，very不可以。如：He is very stupid.(他很笨)/ The film was very moving and everyone swept.(电影非常动人，大家都哭了)/ You must work much harder or you will fail to enter the good school.(你得学习更努力，

7、不然你考不进那所好学校)/ I dont like him much.(我不太喜欢他) 6. sometimes、sometime、some times 、some time的用法：sometimes(有时)用于一般现在时、sometime(在将来某时)用于将来时、some times(数次)表示次数、some time(一些时间)表示一段时间。如：Sometimes they go hiking in the mountains.(他们有时徒步到山里去)/ I will stay here some time.(我会在这儿呆些时候的。)/ I will meet your father so

8、metime.(我什么时候要见见你的父亲。) 7. how、what用于感叹句的用法：对句子中的形容词或副词感叹时用how，对人或事物(可能含有形容词作修饰语)进行感叹用what. 如：What a fine day (it is) today!(今天天气真好!) / How difficult (the problem is)!(问题)真难呀!) 8.already、yet的用法：在完成时中，already一般用于肯定句，yet一般用于否定句和疑问句。如：Have you done it already?(你已经做好了?) / I have not had my breakfast yet.

9、(我还没有吃早饭呢。) 9. hard与hardly的用法：hard作为副词意思是：“努力地，猛烈地”，hardly是否定词，意思是：“几乎不”，一般与情态动词can/could连用。如：They study English very hard.(他们英语学得很刻苦)/ You can hardly see a person spit in a public place.(在公共场所你几乎看不到一个人随地吐痰) 10. likevery much、likebetter(=prefer)、likebest的用法：三个分别表示“非常喜欢”、“更喜欢”、“最喜欢”。如：I like baseball

10、 very much.(我非常喜欢)/ Do you like butter better than cheese?( / They like hamburgers best. 11.“quite/what+a+形容词+名词”的用法：记住：quite/such/what+a+形容词+名词;too/so/how+形容词+a+名词;rather+a+形容词+名词 = a+ rather+形容词+名词。如：I have never seen such a strange guy(家伙)。(我从未见过这样奇怪的家伙) / It is quite a nice day for a walk.(这真是散步

11、的好日子) 1、时间和频度副词： now,then,often,always,usually,early,today, lately, next,last,already,generally,frequently, seldom,ever,never,yet,soon,too, immediately, hardly,finally,shortly, before, ago,sometimes, yesterday. 2、地点副词： here, there, everywhere, anywhere, in, out, inside, outside, above, below, down,

12、back, forward, home, upstairs, downstairs, across, along, round , around, near, off, past, up, away, on. 3、方式副词： carefully, properly, anxiously, suddenly, normally, fast, well, calmly, politely, proudly, softly, warmly 4、程度副词，放在被修饰词之前： much,little, very,rather,so,too,still, quite, perfectly, enough,

13、 extremely, entirely,almost, slightly. 5、疑问副词，一般放在句首： how, when, where, why. 6、关系副词，一般放在句首： when, where, why. 7、连接副词： how, when, where, why, whether. 和时态一样，语态也是动词的一种形式，用来说明句中主语和谓语的关系。如果动作由主语执行，就可使用主动语态，如果主语不是由主语执行，主语是动作的承受者，则可使用被动语态。由此我们可以看出英语动词有两种语态：主动语态和被动语态。 被动语态：表示主语是动作的承受者，什么事情被主语做。被动语态的构成和形式被动

14、语态由“助动词be+及物动词的过去分词”构成，一定要记住是及物动词。助动词必须与主语的人称和数一致，注意要与我们前一讲学过的八个时态配合使用。 适合被动语态的情况： 不知道动作由谁发出，或由于某种原因没有必要说明谁发出动作。如：This table is made of wood. 需要突出或强调动作的承受者时，如：This park was built for children. 注意：主动句中的主语如果是people，they，somebody等含糊的表示“人或人们”，没有确指执行者是谁，为被动句时，通常省略“by+执行者”。如：The door was opened secretly. But nobody came in. 注意：在主动句里，不定式在make，see，hear等动词后面作宾语补足语