学习是要经过思考的，否则将一事无成。思考后就能得出学习成果，说的是非常对的。下面是课件范文网小编为您推荐九年级英语知识点精选三篇。
9年级英语知识点1
Since 用来说明动作起始时间，for用来说明动作延续时间长度。例如：
I have lived here for more than twenty years.我住在这儿二十多年了。
I have lived here since I was born. 我从出生起就住在这儿了。
注意：并非有for 作为时间状语的句子都用现在完成时。
I worked here for more than twenty years. （我现在已不在这里工作。）
I have worked here for many years.（现在我仍在这里工作。）
注意：用句型转换的方法，很容易排除非延续动词在有for/since结构的完成时中的误用。
（1）（对）Tom has studied Russian for three years. = Tom began to study Russian three years ago， and is still studying it now.
（2）（错）Harry has got married for six years. = Harry began to get married six years ago， and is still getting married now.
显然，第二句不对，它应改为 Harry got married six years ago. 或 Harry has been married for six years.
9年级英语知识点2
副词的基本用法
副词在句中主要用作状语，修饰动词、形容词、副词、介词短语或句子。
（1）修饰动词，表示时间、地点、程度、方式、频度等。一般位于动词之后，如果动词有宾语，则要位于宾语之后。频度副词常位于助动词和连系动词be 之后或实义动词之前。例如：He arrived only yesterday. 他是昨天才到的。There were clothes lying here and there on the floor. 地板上到处都是衣服。I have been terribly worried about you all day. 我一整天都非常为你担心。She plays the piano very well. 她钢琴弹得很好。The boy is always asking his parents for money. 那个男孩老是向他父母要钱。She never goes to the cinema. 她向来不看电影。
（2）修饰形容词、副词、介词短语，一般前置，只有enough例外，需要后置。例如：She seems quite happy. 她看上去相当愉快。You've done rather badly in the test. 你考得够糟糕的。The wind was right in our faces. 风迎面吹来。This girl is not old enough to go to school. 这个女孩还没有到上学的年龄。He didn't run fast enough to catch the train. 他跑得不够快，没有赶上火车。
（3）用作表语，多为与介词同形的副词和表示方位的副词。例如：Is anybody in? 里面有人吗?有人在家吗?Father is away. 父亲离家在外。I am downstairs and my brother is upstairs. 我住楼下，我哥哥住楼上。My friend is still abroad. 我的朋友还在国外。
（4）少数表示地点或时间的副词还可用作定语，一般位于名词之后。例如：I hope you'll enjoy your stay here. 希望你在这里过得愉快。I met a friend of mine on my way home. 在我回家的路上，我碰到一位朋友。What did you think of the meeting yesterday? 你觉得昨天的会开得怎样?
（5）副词的比较等级用法与形容词一样，请参见《初中英语语法专题讲座--形容词》有关内容。
9年级英语知识点3
weekend用法
1.weekend指“周末”，在5天工作制的国家，指星期六和星期日；在6天工作制的国家，指星期日，与weekday（周日）相对，为可数名词。如：
We must go and have a weekend there. 我们应当到那里度周末。
We spend alternate weekends at our country cottage.
我们每隔一周到我们的乡间住宅过一次周末。
2.表示“在周末”，英语可用 at the weekend或at weekends（用介词 at 为英国英语，用 on 为美国英语），但习惯上不说 in the weekend 或 in weekends。如：
We usually do our shopping at the weekend. 我们通常利用周末采购物品。
They like to go ballooning on the weekend. 他们周末喜欢乘气球玩。
Traffic on the roads is heaviest at weekends. 周末的交通最为繁忙。
The library is closed on weekends. 周末图书馆关门。
在美国英语中可省略其前的介词，即把weekends用作副词。如：
He works weekends. 他周末工作。
I go yachting most weekends in the summer.
在夏天，我大多数周末都乘快艇游玩。
若不是表示“在周末”，则可根据情况与其他介词搭配。如：
The weather ought to improve after the weekend. 过了周末天气应当好起来。
Tom is always going away for weekends. 汤姆每个周末总是外出。
Why don’t you and I go away for the weekend? 咱们俩何不到外地去度周末呢?
The weather is stormy and will remain so over the weekend.
今天是暴风雨天气，整个周末都会是这样。
Could you oblige me with five pounds until the weekend?
能借我5英镑吗，周末还你?
3.当weekend与this， that， last， next， every等搭配时，其前不用介词at或on。如：
We are expecting guests this weekend. 我们本周末要来客人。
Accidents due to driving at high speed were very common that weekend.
在那个周末因高速驾驶造成的交通事故很多。
Tomorrow’s difficult. I’d rather yon came next weekend.
明天有困难，我希望你下周末来。
Peggy was pretty rude to my family last weekend.
佩吉上个周末对我家人很不礼貌。
We go boating on the lake every weekend. 我们每个周末都到湖上划船。
