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八年级上册的重要英语语法包括可数名词与不可数名词、宾语从句、被动语态等等。接下来分享具体的八年级上册英语语法，希望对同学们复习有帮助。
(一)可数名词
英语中的物质名词大体上可分为可数名词和不可数名词。可数名词指物体的数量可数。其单数形式可在名词前加a或an,表示一个，如a pear. 其复数形式要在词尾加-s,或-es(特殊情况除外)，如two bananas, three tomatoes， many apples，a few students
(二)不可数名词
1.不可数名词指物体的数量不可数。不可数名词没有单复数之分，也不能在词前直接加冠词a 或an.表示不可数名词的数量时可在不可数名词前加相应的由量词构成的短语。如a bag of… 2.常见的量词短语有：
a piece of… a cup of… a teaspoon of… a bottle of…
3.不可数名词还可以用下面的词表示数量：much(much rain)，
a little (a little milk).
4.既可以修饰不可数名词又可以修饰不可数名词的词有：
Lots of= a lot of许多，大量 some一些(用于肯定句)any一些(用于否定句和一般疑问句)
(一) 宾语从句的语序：
宾语从句的语序是陈述语序，即“连接词+主语+谓语+其它成分”。特别强调：它的主语和谓语的语序是陈述语序，而不是疑问句的倒装结构。
Can you tell me who(m) do we have to see?(╳)
Can you tell me who(m) we have to see?( √)
陈述句变为宾语从句时,要注意人称和时态的变化,语序不变。 eg. She said, “I will leave a message on the desk.” à She said she would leave a message on the desk.
一般疑问句和特殊疑问句变为宾语从句时,也要注意人称和时态的变化,后面接陈述语序。Eg. “Where are the tickets?” I asked him. à I asked him where the tickets are.
(二) 宾语从句的时态呼应：
宾语从句中谓语动词的时态，常常受到主句谓语时态的制约，此为时态呼应。如果主句谓语是一般现在时或将来时，从句谓语的时态不受限制;如果主句谓语的时态是一般过去时，从句一般要随着改为相应的过去时态(一般过去时、过去进行时、过去将来时、过去完成时)。
eg. I thought (that) you are free today. (╳)
I thought (that) you would be free today.(√)
【注意】当宾语从句叙述的是客观真理时，不管主句谓语的时态如何，从句都用一般现在时。
(三) 其他需要说明的问题：
1、 标点由主句决定，如主句是陈述句、祈使句，则用句号;是疑问句则用问号。
eg. I heard she had been to the Great Wall. Can you tell me which bus I should take?
2、 要注意个别句子中主从句人称的一致。
(一)被动语态的结构。
被动语态由“助动词be+过去分词”构成，其中be有时态、人称和数的变化。被动语态根据时态的不同，可以分为以下几种类型：
一般现在时：am/is/are +done
一般过去时：was/were+done
现在进行时：am/is/are+being done
过去进行时：was/were+being done
将来时：will/would+be done,be going to be done,be to be done
现在完成时：have/has+been done
过去完成时：had +been done
将来完成时：will+have been done
(二)被动语态的用法。
1.不知道或者没必要指出动作的执行者时，常用被动语态，这时往往不用by短语。用by短语主要是为了突出动作的执行者。
例：The front window in the classroom was broken yesterday.
昨天，教室前窗玻璃被打破了。(这里不知道打破玻璃的人是谁)
History is made by the people.
历史由人民创造。(为了突出动作执行者the people，用了by短语)
2.为了使语言得体或者更圆滑等不愿意说出动作的执行者，那就用被动语态。
例：You are not allowed to bring the dog here.
你在这儿不允许带狗。
3.出于修辞的原因或者为了更好的安排句子。
例：The notion is especially opposed to by those who have invested much in the area. 这个提议特别遭到了那些在本地区投资很大的人的反对。(因those的定语太长了，若用它作主语，主语与谓语就相距太远而显得句子松散。)
巧儿妹妹
1.人称代词 主格：I we you she he it they 宾格：me us you her him it them 形容词性物主代词：my our your her his its their 名词性物主代词：mine ours yours hers his its theirs 2.形容词和副词的比较级 (1) 一般在形容词或副词后+er older taller longer stronger,etc (2) 多音节词前+more more interesting,etc. (3) 双写最后一个字母,再+er bigger fatter,etc. (4) 把y变i,再+er heavier,earlier (5) 不规则变化： well-better,much/many-more,etc. 3.可数词的复数形式 Most nouns + s a book –books Nouns ending in a consonant +y - y+ ies a story—stories Nouns ending in s,sh,ch or x + es a glass—glasses a watch-watches Nouns ending in o +s or +es a piano—pianos a mango—mangoes Nouns ending in f or fe - f or fe +ves a knife –knives a shelf-shelves 4.不可数名词(单复数形式不变) bread,rice,water ,juice etc. 5.缩略形式 I’m = I am you’re = you are she’s = she is he’s = he is it’s = it is who’s =who is can’t =can not isn’t=is not etc 6.a/an a book,a peach an egg an hour 7.Preposition: on,in ,in front of,between,next to,near,beside,at,behind. 表示时间：at six o’clock,at Christmas,at breakfast on Monday on 15th July On National Day in the evening in December in winter 8.基数词和序数词 one – first two-second twenty-twentieth 9.Some /any I have some toys in my bedroom. Do you have any brothers or sisters? 10.be 动词 (1) Basic form:am/are/is (2) 肯定和否定句 I am(not) from London. My eyes are(not) *** all. My hair is(not) long. （3）一般疑问句：Am I a Chniese?Yes,you are.No,you aren’t. Are they American?Yes,they are.No,they aren’t. Is the cat fat?Yes,it is.No,it isn’t. 11.there be 结构 肯定句：There is a … There are … 一般疑问句:Is there Yes,there is./ No,there isn’t. Are there…?Yes,there are./No,there aren’t. 否定句：There isn’t ….There aren’t…. 12.祈使句 Sit down please Don’t sit down,please. 13.现在进行时.通常用“now”. 形式：be + verb +ing eg:I am(not) doing my homework. You/We/They are(not) reading. He/She/It is(not) eating. 动词 —ing 的形式 Most verbs +ing walk—walking Verbs ending in e -e + ing e—ing Short verbs ending in a vowel + a consonant run –running swim—swimming 14 一般现在时.通常用 “usually,often,every day,sometimes”. 形式： 肯定句： I go to school on foot every day. She goes to school on foot every day,6,
