以下是小编为大家准备的八年级上册英语unit1-3知识点及语法，本文共7篇，希望对大家有帮助。本文原稿由网友“nmq5986”提供。
篇1：八年级上册英语unit1-3知识点及语法
八年级上册英语unit1-3知识点及语法
Unit1
1. We had great fun playing in the water. 我们在水中玩得很高兴。
have fun (in) doing sth. 做某事很高兴 = enjoy oneself
We had a lot of fun swimming in the sea.
I have great fun talking with that little girl.
练一练(1) I have a good time on the beach. ( 同义句)
I ______ ________ on the beach.
(2) We have fun ______(sing) and ______( dance).
2. I found a small boy crying in the corner. 我发现一个小男孩在角落里哭。
find sb. doing sth. 发现某人正在做某事
He sat down and watched Wang Wang play with a friend black cat.
感官动词 see, hear, feel, watch, listen to, look at, find
(1)感官动词+ 宾语+ 动词原形 强调看到/听到整个动作，或整个事件或行为的全过程
(2)感官动词+ 宾语+ 现在分词 强调看到/听到行动或事件正在进行
I saw him cross the street. 我看见他过了马路。(从一边到另一边)
I saw him crossing the street. 我看见他正过马路。(正在马路中间走着)
练一练 (1) I found a dog ______ near the door.
A. was standing B. to stand C. stand D. stood
(2) She heard a little boy ______ English.
A. reading B. reads C. to read D. is reading
3. That made me feel very happy. 那使我感到很愉快。
make sb. do sth. 使某人做某事
使役动词 have, let, make 后跟不带to的不定式作宾补
Let me help you.
I’ll have him bring some water.
练一练 (1) Helping others can make us ______ very happy.
A. feeling B. to feel C. feel D. felt
(2) They _____ the boy leave at once.
A. asked B. told C. kept D. made
(3) Mother often ______ me ______ my homework after supper.
A. makes, doing B. lets, doing C. watched, to do D. makes, do
Unit2
1. How often do you exercise ? → How often + 助动词do(does或did) + 主语 + do sth. ? 疑问词how often是问频率(多经常), 在这里助动词do(does或did) 是起帮助构成疑问的作用
Once a week / Three times a month / Three or four times a month .
练习. —______ is “Lucky 52” shown on CCTV-2?
—Every week.(，黄冈)
A. How often B. How long C. How soon D. How many times
2. as for...意思是“至于;关于”，常用于句首作状语，其后跟名词、代词或动词的-ing形式(即动名词)。如
As for him，I never want to see him here. 至于他，我永远不希望在这里见到。
(1). ________(至于，关于) clothes, she likes clothes in fashion.
3. want to do sth.意思是“想要做某事”;
want sb. to do sth.意思是“想要某人做某事”。如：
Do you want to go to the movies with me?你想和我一起去看电影吗?
The teacher doesnt want us to eat hamburgers.老师不想让我们吃汉堡包。
练习： His mother wants him ___ at home today.
A. stays B. stayed C. to stay D. staying
4. be good for...表示“对……有益(有好处)”。其反义为：be bad for...。后接名词、代词或动名词;be good at意为“擅长……”，后接名词、代词或ving形式。be good with意为“灵巧的;与……相处得好”;be good to意为“对……友好。
(1).(乌鲁木齐) 1 think drinking milk is good ____ our health.
A.for B. to C. with D. at
5. try to do sth.表示“ 尽力做某事 ” ，不包含是否成功的意思 / try doing sth. 表示“ (用某一办法)试着去做某事”。 如:You’d better try doing the experiment in another way. 你最好试试用另一种方法做这个试验。
练习： He must _____ his sister with her math.
A. try help B. trying to help C. trys to help D. try to help
6. help sb. (to) do sth.帮助某人做某事
.练习：Eating fruit and vegetables can help you ______ more vitamins
A. got B. getting C. to get D. gets
7. be the same as 和…一样 / 反义词： be different from 和…不同
练习：1.Life in the country is quite _______ that in the city.
A. the same B. different from C. full of D.the same as
2.Is your pen _______ Jim’s?
A.same as B.the same C.the same with D.the same as
8. kind of = a little / a kind of 意思是“一种”
练习：How many ______ medicine are used for the children of six years old?
A. kind of B. kinds of C. kind D. kinds
9. keep in good health = keep healthy = stay healthy =be healthy 保持健康
That sounds interesting. 这是“主语+系动词+表语”结构的简单句。sound(听起来)，look(看起来)，smell(闻起来)，taste(尝起来)，feel(觉得)，seem(好象)，grow(变得) , get(变得)等词在英语中可用作系动词，后跟形容词作表语。如： It tastes good. 这味道好。
The music sounds very sweet. 这音乐听起来很入耳。
练习：We should keep our classroom ______.
A. cleaned B. clean C. cleaning D. to clean
10.although意思是“虽然，尽管” 引导的从句不能与but, however连用，但可与yet, still连用 。 although不能指假设的情况，不能作副词，放在词尾。
练习：Although he is very old, ______he works very hard.
A. and B. but C. / D. so
Unit3
1. I’m more outgoing than my sister . → 主语 + 动词 + 形容词比较级别 + than + 比较对象
练习：I don’t think Henry is _____ than Tony.
A. much popular B. more popular C. popular D. most popular
2. in some ways 在某些方面; in many ways 在多方面
3. enjoy doing sth. =love like doing sth. 喜欢做某事
练习：She enjoys _____ basketball on Sundays
A. play B to play C playing D have played
4. as/so + 形容词/ 副词(原形) + as 和……一样
它的否定式是：not as/ so + 形容词/ 副词(原形) + as 和……不一样
练习：This math problem is _______that one.
A.not so easy as B.more easy than C.as easier as D.easy than
5. all用于三者或三者以上;both用于两者。同时要注意它们在句中的位置，即位于连系动词(be)，助动词(be , will , shall , should 等)，情态动词(can , may , must , have to等)的后面;其它动词的前面。
同步练习
1.There are lots of colorful on _______ sides of the streets.
A.each B.both C.either D.all
2.What are your parents?
They doctors.
A.are all B.are both C.all are D.both are
6.make sb. do sth. 使某人做某事
练习：
1.The boss makes the worker _______10 hours every day.
A.work B.to work C.working D.works
.2. Mr Bean enjoys _______ jokes and often makes us _______.
A.to tell; to laugh B.tells; laugh C.telling; laugh D.telling; laughing
7.stop doing sth. 意为“ 停止(正在)做的事情” / stop to do sth. 意为“ 停下(正在做的事)去做某事”
语法：
1.一般过去时
1.一般过去时表示过去某个时间发生的动作或存在的状态，常和表示过去的时间状语连用。一般过去时也表示过去经常或反复发生的动作。
动词过去式变化规则：
1.一般在动词末尾加-ed，如：pull-pulled, cook-cooked
2.结尾是e加d，如：taste-tasted
3.末尾只有一个元音字母和一个辅音字母的重读闭音节，应双写末尾的辅音字母，再加-ed，如：stop-stopped
4.以“辅音字母+y”结尾的，变y为i，再加-ed，如：study-studied
同步练习
1. Gao Shan _______ (pull) up carrots last National Day holiday.
2. I ____________ (sweep) the floor yesterday, but my mother ______.
3 What _____ she _____ (find) in the garden last morning?
She ____ (find) a beautiful butterfly.
4. It ____ (be) Ben’s birthday last Friday 10. We all ___ (have) a good time last night.
5.. He _____ (jump) high on last Sports Day. 12. Helen ____ (milk) a cow on Fridays.
6.. She likes ______ newspapers, but she ______ a book yesterday. (read)
7. He _______ football now, but they _______ basketball just now. (play)
8. Jim’s mother _________ (plant) trees just now.
9. _______ they ________ (sweep) the floor on Sunday? No, they _____.
10. I _______ (watch) a cartoon on Mondays. 18 We ____ (go) to school on Sundays.
2，.英语形容词比较级的构成
：
英语形容词比较等级有三个：原级，比较级和最高级。
形容词比较等级形式变化有规则的和不规则的两种。
规则变化 :
1)单音节词末尾加-er(比较级)，-est(最高级)
【例】 small smaller smallest
2)单音节如以e结尾，只加-r(比较级)，-st(最高级)
【例】 fine finer finest
闭音节单音节词如末尾只有一个辅音字母，须先双写这个辅音字母，再加-er(比较级)，-est(最高级) big bigger biggest
少数以-y，-er，ow，-ble结尾的双音节词，末尾加-er(比较级)，-est(最高级)。以-y结尾的词，如-y前是辅音字母，则变y为-i，再加-er和-est。以-e结尾的词只加-r和-st。
【例】 clever cleverer cleverest
其它双音节和多音节词皆在前面加单词more和most。
【例】 careful more careful most careful
不规则变化
原级 比较级 最高级
good/well better best
bad worse worst
many/much more most
little less least
注：有些形容词一般没有比较等级。如： right, wrong, woolen等。
同步练习
21. His father is____than his mother. ;
A. older four years B. as four years older C. four years older D. bigger four years
22. Maths is more popular than____.
A. any other subject B. all the subjects C. any subject D. other subject
23. China is larger than ____ in Africa
A. any other country B. other countries C. the other country D. any country
24. Tom is stronger than ___ in his class.
A. any other boy B. any boys C. any boy D. other boy
25. When spring comes, it gets____.
A. warm and warm B. colder and colder C. warmer and warmer D. shorter and shorter
26. By and by, ____ students in our class came to like English.
A. more and more B. much and much C. many and many D. less and least
27. At last he began to cry ___.
A. hard and hard B. more hard and more hard
C. harder and harder D. less hard and less harder
28. When spring comes the days get ____ and nights ____.
A. short; long B. long; short C. longer; shorter D. shorter; longer
29. ___ I look at the picture, ____ I like it.
A. The best; the more B. The more; the less C. The more; less D. More; the more
30. ___ he read the book, ____ he got in it.
A. The more; the more interesting B. The less; the more interesting
C. The more; the more interested D. More; more interested
篇2：八年级英语上册语法知识点
1. 形容词/副词的比较级和最高级的构成规则
（1）单音节词和少数以-er，-ow结尾的双音节单词，比较级在后面加-er，最高级在后面加-est。
① 单音节单词
small→smaller→smallest
short→shorter→shortest
tall→taller→tallest
great→greater→greatest
② 少数以-er，-ow结尾的双音节单词
clever→cleverer→cleverest
narrow→narrower→narrowest
（2）以不发音e结尾的单音节单词，比较级在原形后加-r，最高级在原级后加-st。
large→larger→largest
nice→nicer→nicest
able→abler→ablest
（3）以一个辅音字母结尾的闭音节（即：辅音＋元音＋辅音）单词中，先双写末尾的辅音字母，比较级加-er，最高级加-est。
big→bigger→biggest
hot→hotter→hottest
fat→fatter→fattest
（4）以“辅音字母＋y”结尾的双音节词， 把y改为i，比较级加-er，最高级加-est。
easy→easier→easiest
heavy→heavier→heaviest
busy→busier→busiest
happy→happier→happiest
（5）其他双音节词和多音节词，比较级在前面加more，最高级在前面加most。
beautiful→more beautiful→most beautiful
different→more different→most different
easily→more easily→most easily
（6）有少数形容词、副词的比较级和最高级是不规则的，必须熟记。
good→better→best
well→better→best
bad→worse→worst
ill→worse→worst
old→older/elder→oldest/eldest
many/much→more→most
little→less→least
far →further/farther→ furthest/farthest
2. 形容词和副词比较级的用法
（1）“甲+be+(倍数)+形容词比较级+than+乙”表示“甲比乙…”或“甲比乙…几倍”。
Tom is taller than Kate.
汤姆比凯特高。
This room is three times bigger than that one.
这个房间比那个大三倍。
（2）“甲+实意动词+(倍数)+副词比较级+than+乙”表示“甲比乙…”或“甲比乙…几倍”。
I got up earlier than my mother this morning.
我今天早晨起床比我妈妈还早。
He runs three times faster than his brother.
他跑的速度比他弟弟快三倍。
3. 形容词和副词最高级的用法
（1）“主语+be+the+形容词最高级（+单数名词）+in/of...”表示“……是……中最……的”。
Tom is the tallest in his class./of all the students.
汤姆是他们班上/所有学生当中最高的。
This apple is the biggest of the five.
这个苹果是五个当中最大的。
（2）“主语+实意动词+(the)+副词最高级+in/of...”表示“……是……中最……的”。
I jump (the) farthest in my class.
我是我们班跳得最远的。
篇3：八年级英语上册语法知识点
1.主语：句子所陈述的对象。
2.谓语：主语发出的动作。一般是有动作意义的动词。
3. 宾语：分为动词宾语和介词宾语，属于动作的承受者。
4. 系动词：表示状态或状态变化的动词，没有实际的动作意义。如 be, 感官系动词（look, sound, smell, taste 和 feel）、保持类系动词（keep, stay 和 remain）、状态变化类系动词（become、get、turn 和 go）等。
5. 表语：紧跟系动词后面的成分。
6. 定语：修饰名词或代词的成分。
7. 状语： 修饰形容词、副词、动词或句子的成分。
8. 补语：分为宾语补足语和主语补足语。是对宾语和主语的补充说明，与其有主动或被动的逻辑关系。
例如：You should keep the room clean and tidy.
你应该让屋子保持干净整洁。
（You是主语， should keep是谓语，the room是宾语，clean and tidy是宾语补足语。）
This kind of food tastes delicious.
这种食物吃起来很可口。
（This kind of food是主语， tastes是系动词， delicious是表语。）
注意：主语、谓语、宾语、系动词、表语、补语是一个句子的主干成分；定语和状语是一个句子的修饰性成分，不是主干成分。
篇4：八年级英语上册语法知识点
1.“主语 + 谓语”(即“主谓”句型)
例：They arrived in Harbin yesterday morning.
分析：“they”(主语)“arrived”(谓语)。
2.“主语 + 谓语 + 宾语”(即“主谓宾”句型)
例：I study English.
分析：“I”(主语)“study”(谓语动作)“English”(宾语即动作涉及的对象)。
3.“主语 + 谓语 + 间接宾语 + 直接宾语”(即“主谓双宾”句型)
例：Our teacher taught us English.
分析：“our teacher”(主语)“教”(谓语动作)“us”(间接宾语)“English”(直接宾语)。
4.“主语 + 谓语 + 宾语 + 宾语补足语”(即“主谓宾宾补”句型)
例： He asked her to go there.
分析：“he”(主语)“asked”(谓语动作)“her”(宾语即动作涉及的对象)“to go there”(补语—补充说明宾语做什么)。
5.“主语 + 系动词+ 表语”(即“主系表”句型)
常用的系动词有be, keep，lie, remain, stand, become, fall, get, go, grow, turn, look, feel, seem, smell, sound, taste, 等。
例： I am a teacher. 我是一名老师
分析：“I”(主语)“am”(系动词)“a teacher”(表语—即表明主语的身份)。
篇5：八年级英语连词语法知识点
八年级英语连词语法知识点
引导原因状语从句的连词：
because:Becauseitrainedhetookataxi.由于下雨他叫了一辆出租车。
as:Asyou'resorry,I'llforgiveyou.既然你悔悟了，我就原谅你。Since:Sinceyouwillgothere,Iwillgotoo.7.让步状语从句的连词：although/though:
Though/Althoughitisnotlarge,theroomwaslight.房间虽然不大，采光却很好。evenif:They'llstandbyyouevenifyoudon'tsucceed.即使你不成功，他们也会支持你。
引导地点状语从句的连词：(难点)
where:I'lldriveyouwhereyou'regoing.你到哪儿我都可以开车送你去。wherever:We'llgowhereveryousay.你说哪里我们就到哪里。
everywhere:Everywherehewent,hewasintroducedasthecurrentUSchampion.
不管他到哪里，人们都介绍他是当前的'美国冠军。
nomatterwhere:Keepyourmobilephonewithyounomatterwhereyouare.
不管在哪里你都要带着手机。
引导结果状语从句的连词：
1)结果状语从句主要由so…that和such…that引导：
so…that:Hewassofatthathecouldn'tgetthoughthedoor.他胖得连门都过不去了。such…that:Jimmadesuchanoisethathissistertoldhimtobequiet.
吉姆吵成那样，他姐姐让他安静点。
引导目的状语从句的连词：(重点)
inorderthat:Ilenthim500yuaninorderthathecangoforaholiday.
我借给他50英镑，使他能去度假。
sothat:AskhertohurryupwiththeletterssothatIcansignthem.
让她快点把信打好，以便我能签字。
引导时间状语从句的连词：
when:Don'tgetexcitedwhenyoutalk.讲话时别激动。
while:Wemuststrikewhiletheironishot.我们要趁热打铁。
as:Hesmiledashepassed.他经过时笑了笑。
before:Itwillbefiveyearsbeforewemeetagain.要五年后咱们才能再相见。
after:I'lltellthemafteryouleave.我将在你走后告诉他们。
until,till:Iproposewaitingtillthepolicegethere.我建议等警察来了再说。
since:HowlongisitsinceyoucametoLondon?你到伦敦有多久了?
whenever:Wheneveritispossible,theyplayoutside.一有机会他们就到外面玩耍。
篇6：英语四年级上册语法知识点
be动词与人称代词的搭配
1、基本形式：am、are、is
第一人称I+am (注意：“I”无论何时都要大写，不管位于句首还是句中)
例：I am a beautiful girl. I am twenty.
第二人称you+are; 一人称复数we+are; 三人称复数they+are 其他复数名词+are
(注意：第二人称单复数同形，都为you)
例：You are my good friend. We are in the same class.
They are on the road. The books are on the desk.
第三人称he(男) +is ; she(女)+is; it(不是人)+is;其他单数名词+is
例：He\\She is a good student. It is a white cat.
A dog is on that street.
2、基本句式变换
例：I am(not) from London.
My eyes are(not) small.
My hair is(not) long.
Am I a Chniese? 回答： 肯定：Yes, you are. 否定： No, you aren’t.
Is the cat fat? 回答：肯定：Yes, it is. 否定： No, it isn’t.
注意：在一般疑问回答中，肯定回答除I’m不可简写,否定回答均可简写。
篇7：英语四年级上册语法知识点
介词、连词和感叹词
1.介词：介词是一种虚词，不能单独使用，必须在介词后面加上个名词或代词使用，作句子成份。
介词后面的名词(或相当于名词的其它词)叫做介词的宾语。介词和介词宾语合称为介词短语。介词短语在句中可作壮语、定语或表语。
介词如: in 在…里面on在…上面under在…下面等。
in the classroom in the box in the hall
on the road on the desk on the floor
under the table under the bed under the chair
2.连词：连词是用来连接词与词、短语与短语、句子与句子等的词叫连词。连词是一种虚词，在句子中不能单独作句子成分。连词分两类：一类叫等立连词，另一类叫从属连词。
(1). 等立连词是用来连接同等的词、词组和分句的。等立连词有许多,我们现在只学到了and和but，其他的以后学到再介绍。
如：A and B ; blue and white ;an apple and a banana;a car and a bus;This is a lorry and that’s a drill.
(2).感叹词: 表示说话人的某种感情(惊讶，高兴，痛苦等)的词叫感叹词。感叹词后常用感叹号。常用的感叹词有：oh(表示惊奇或痛苦)，ah(表示惊奇或满意)，hello(常被用来打招呼相当于汉语的“喂!”)，well(表示惊讶，无奈)
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