9年級英語知識點
對於英語的學習，我們要掌握正確的學習方法。下面是本站小編爲大家收集整理的9年級英語知識點，相信這些文字對你會有所幫助的。
9年級英語知識點(一)
weekend用法
end指“週末”，在5天工作制的國家，指星期六和星期日;在6天工作制的國家，指星期日，與weekday(週日)相對，爲可數名詞。如：
We must go and have a weekend there. 我們應當到那裏度週末。
We spend alternate weekends at our country cottage.
我們每隔一週到我們的鄉間住宅過一次週末。
2.表示“在週末”，英語可用 at the weekend或at weekends(用介詞 at 爲英國英語，用 on 爲美國英語)，但習慣上不說 in the weekend 或 in weekends。如：
We usually do our shopping at the weekend. 我們通常利用週末採購物品。
They like to go ballooning on the weekend. 他們週末喜歡乘氣球玩。
Traffic on the roads is heaviest at weekends. 週末的交通最爲繁忙。
The library is closed on weekends. 週末圖書館關門。
在美國英語中可省略其前的介詞，即把weekends用作副詞。如：
He works weekends. 他週末工作。
I go yachting most weekends in the summer.
在夏天，我大多數週末都乘快艇遊玩。
若不是表示“在週末”，則可根據情況與其他介詞搭配。如：
The weather ought to improve after the weekend. 過了週末天氣應當好起來。
Tom is always going away for weekends. 湯姆每個週末總是外出。
Why don’t you and I go away for the weekend? 咱們倆何不到外地去度週末呢?
The weather is stormy and will remain so over the weekend.
今天是暴風雨天氣，整個週末都會是這樣。
Could you oblige me with five pounds until the weekend?
能借我5英鎊嗎，週末還你?
3.當weekend與this, that, last, next, every等搭配時，其前不用介詞at或on。如：
We are expecting guests this weekend. 我們本週末要來客人。
Accidents due to driving at high speed were very common that weekend.
在那個週末因高速駕駛造成的交通事故很多。
Tomorrow’s difficult. I’d rather yon came next weekend.
明天有困難，我希望你下週末來。
Peggy was pretty rude to my family last weekend.
佩吉上個週末對我家人很不禮貌。
We go boating on the lake every weekend. 我們每個週末都到湖上划船。
9年級英語知識點(二)
Since 用來說明動作起始時間，for用來說明動作延續時間長度。例如：
I have lived here for more than twenty years.我住在這兒二十多年了。
I have lived here since I was born. 我從出生起就住在這兒了。
注意：並非有for 作爲時間狀語的句子都用現在完成時。
I worked here for more than twenty years. (我現在已不在這裏工作。)
I have worked here for many years.(現在我仍在這裏工作。)
注意：用句型轉換的方法，很容易排除非延續動詞在有for/since結構的完成時中的誤用。
(1)(對)Tom has studied Russian for three years. = Tom began to study Russian three years ago, and is still studying it now.
(2)(錯)Harry has got married for six years. = Harry began to get married six years ago, and is still getting married now.
顯然，第二句不對，它應改爲 Harry got married six years ago. 或 Harry has been married for six years.
9年級英語知識點(三)
副詞的基本用法
副詞在句中主要用作狀語，修飾動詞、形容詞、副詞、介詞短語或句子。
(1)修飾動詞，表示時間、地點、程度、方式、頻度等。一般位於動詞之後，如果動詞有賓語，則要位於賓語之後。頻度副詞常位於助動詞和連繫動詞be 之後或實義動詞之前。例如：He arrived only yesterday. 他是昨天才到的。There were clothes lying here and there on the floor. 地板上到處都是衣服。I have been terribly worried about you all day. 我一整天都非常爲你擔心。She plays the piano very well. 她鋼琴彈得很好。The boy is always asking his parents for money. 那個男孩老是向他父母要錢。She never goes to the cinema. 她向來不看電影。
(2)修飾形容詞、副詞、介詞短語，一般前置，只有enough例外，需要後置。例如：She seems quite happy. 她看上去相當愉快。You've done rather badly in the test. 你考得夠糟糕的。The wind was right in our faces. 風迎面吹來。This girl is not old enough to go to school. 這個女孩還沒有到上學的年齡。He didn't run fast enough to catch the train. 他跑得不夠快，沒有趕上火車。
(3)用作表語，多爲與介詞同形的副詞和表示方位的副詞。例如：Is anybody in? 裏面有人嗎?有人在家嗎?Father is away. 父親離家在外。I am downstairs and my brother is upstairs. 我住樓下，我哥哥住樓上。My friend is still abroad. 我的朋友還在國外。
(4)少數表示地點或時間的副詞還可用作定語，一般位於名詞之後。例如：I hope you'll enjoy your stay here. 希望你在這裏過得愉快。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? 你覺得昨天的會開得怎樣?
(5)副詞的比較等級用法與形容詞一樣，請參見《初中英語語法專題講座--形容詞》有關內容。
