⼈教版英语⼋年级上册第三单元Unit知识点讲练⼋年级上册Unit 3
⼀、重点短语
1 . more outgoing 更外向
2. As…as…与…⼀样…
3. the singing competition 唱歌⽐赛
4. be similar to 与…相像的/类似的
5. the same as 和…相同；与…⼀致
6. be different from 与…不同
7. care about 关⼼；介意
8. be like a mirror 像⼀⾯镜⼦
9. the most important 最重要的
10. as long as 只要；既然
11. bring out 使显现；使表现出
12. get better grades 取得更好的成绩
13. reach for 伸⼿取14. in fact 事实上；实际上
15. make friends 交朋友
16. the other 其他的
17. touch one’s heart 感动某⼈
18. be talented in music 有⾳乐天赋
19. be good at 擅长…
20. be good with 善于与…相处
21. have fun doing sth. 享受做某事的
22. be good at doing sth 擅长做某事
lisa多高23. make sb. do sth. 让某⼈做某事
24. want to do sth. 想要做某事
25. as+adj./adv.的原级+as 与…⼀样…
26. It’s+ adj.+for sb. to do sth. 对某⼈来说，做某事……的。
Section A Page 17
(1) A + be+ 形容词⽐较级+ than +B (A⽐B更… )
Jane is taller than Kate.
(2) A + 动词+ 副词⽐较级+ than +B (A⽐B更… )
Jane runs faster than Kate.
2. 形容词的⽐较级的构成。
(1) ⽐较级⼀般在形容词后加_________, 如：tall—taller, short—shorter, old—older
(2)以辅⾳字母+y结尾的双⾳节词，应该_______________________, 如：funny—funnier, heavy—heavier.
单⾳节词除外，如: shy— shyer
(3)如果只有⼀个元⾳字母，并且后有⼀个辅⾳字母结尾，应该___________________________, 如：
big—bigger, thin—thinner
(4)多⾳节词的⽐较级，应该___________________, 如：outgoing—more outgoing, beautiful—more
beautiful
(5)不规则词的变化需要死记：
good/well---___________; bad/ill--____________, many/much---_________; little---________;
far--_______
3. (1) both….and…. 表“两者都”，连接两个主语时视为复数。如：
Both you or I ______ right. ( be ) 你和我都是对的
(2) …表“要么…要么…”，连接两个主语时，谓语动词遵守就近原则。如：
Either you or I ______ right. ( be ) 要么你要么我是对的
4. both表“两者都”，all表“多者都”
题：_______ of my parents are teachers. We are ________ in China.
5. play the drums 打⿎（乐器前要加the，drum要⽤复数，架⼦⿎不⽌⼀个）
6. heavy (1)重的 (2) 胖的，同义词为fat，反义词为thin.
7. 反义疑问句：前⾯是陈述句，⽤来表达⾃⼰的观点，后⾯反问对⽅以证实⾃⼰的观点。基本规律为前肯
后否，前否后肯。后⾯的附加疑问句的构成与改⼀般疑问句的⽅法相同。如：① He isn’t a teacher, ___________ ? ② She can dance, _________ ?
③ He likes English, __________？
(1)反义疑问句的回答根据事实⽤Yes或No来回答，但前否后肯的很容易出错，可改成⼀般疑问句或前
肯后否再作回答。如;
He can’t sing, ___________ ? ( 如果他能，怎么回答)----- _______________
(2) this, that 和表物的不定代词做主语，⽤it代替；表⼈的不定代词⽤they来代替。
Something is wrong, __________ ? Everyone likes English, _____________ ?
肯定式。如： There is litter water in the cup , __________ ?
(4)反意疑问句的陈述部分含有由un-, im-, in-, dis-, 等否定意义的前缀构成的词语时，陈述部分要
视为肯定含义，问句部分⽤否定形式。如：
Your father is unhappy, ___________ ?
(5)反意疑问句的陈述部分为I don't think+ that从句时，从句为否定意义，问句部分的动词和主语仍
与that从句保持⼀致且⽤肯定式。如：
I don't think that you can do it, __________? （不⽤do I?）
(6)陈述部分为Let's……时，因为此句型⽤来提建议，所以问句部分习惯上⽤shall we?如： Let's go
home together, shall we?
(7)陈述部分为Let us……时，问句部分习惯上⽤will you?形式。如：
Let us stop to rest, will you?
(8)陈述部分为祈使句，问句部分可以⽤will you和won’t you。
①Please open the window, won’t you? (肯定祈使句有时也可以⽤will you?提问)
②Don't make any noise, will you? （否定祈使句只能⽤will you ?）
1. 形容词和副词
(1)形容词常译为“....的”。①常放名词前，修饰名词，如：a good boy ②也可以放系动词后做表语，⽤来描述主语是怎么样的。如：The boy is good.
(2)副词常译为“…地”。常放动词后，修饰动词，表“怎样地做某事”，很多副词以ly结尾，如 do well；
run fast；get up early；talk loudly；speak quietly.
2. 以ly结尾的副词和形容词，⼀般前⾯加more 构成⽐较级，但early和friendly 例外。如：
loudly→ more loudly，quietly →more quietly，early →earlier，friendly →friendlier
3. 同级⽐较：表两事物是⼀样的，形容词和副词⽤原形。
(1)A +be +as +形容词原形 + as +B ( A和B是⼀样地…)
Jane is as tall as Kate.
(2)A +动词+as +副词原形 + as +B ( A和B做某事⼀样地…)
Tara works as hard as Tina.
(3) not as…as = not so…as表“不如...”, 常可以与⽐较级转换。如：
Jane is not as/so tall as Kate. (Jane不如Kate⾼。)
= Kate is taller than Jane. (Kate⽐Jane更⾼)
3. the singing competition 唱歌⽐赛
4. fantastic = great 好极了的 It was fantastic/ great
5. Which ⽤来问“哪⼀个”，回答常⽤“The + 名词+描述性短语”，如：
________ one was Lisa ? ---- The one with shorter hair. ( A. Who B. Which C. What )
6. win ( won )赢，后接⽐赛、名词、奖品做宾语，如：
He won the game. He won the first place.
7. 不定式可以放be 动词后做表语，表“….是去做某事”，如
The most important thing is to learn something new. 最重要的事是去学新的东西。
Their dream is _________ a bridge. ( have )
My job was _______ chickens. (feed)
8. learn something new 学习新的东西（形容词放不定代词后）
9. have fun = enjoy oneself = have a good time 玩得开⼼，过得愉快
have fun doing sth. 在做某事中过得愉快 We have fun ________ English. ( learn )
⼆、重点句⼦
1.He has shorte r hair than Sam. 他的头发⽐萨姆的短。
than ⽐……（⽤于形容词，副词的⽐较级之后）
当两个⼈或者物进⾏⽐较时，要⽤形容词的⽐较级。“⽐较级+ tha n” 表⽰“⽐......更......”。⼀般形容词或副词的⽐较级是在词后加-er。但要注意⽐较的对象。如：
I am taller than Jim. 我⽐吉姆⾼。
His hair is shorter than Sam’s. 他的头发⽐萨姆的短。
This book is more interesting than that one.这本书⽐那本书有趣。
形容词和副词的⽐较级、最⾼级
⼤多数形容词和副词有三个等级：1）原级（不作⽐较），修饰词very,so,too,pretty,really；
2）⽐较级，表⽰“较……”或“更……”的意思（两者之间进⾏⽐较）, 标志词than,A or B,of the two, 修饰词much,a lot,a little；3）最⾼级，表⽰“最……”的意思（三者或三者以上作⽐较），形容词最⾼级前⾯⼀般要加定冠词the，后⾯可带in（of）短语来什么⽐较的范围。
①肯定陈述句＋否定提问如：Lily is a student, isn’t she?
Lily will go to China, won’t she?
②否定陈述句＋肯定提问如：She doesn’t come from China, does she?
You haven’t finished homework, have you?
③提问部分⽤代词⽽不⽤名词如：Lily is a student, isn’t she?
④陈述句中含有否定意义的词，如little, few, never, nothing, hardly等。其反意疑问句⽤肯定式。如：
He knows little English, does he?他⼀点也不懂英语，不是吗？They hardly understood it, did they? 他们⼏乎不明⽩，不是吗？
3. No,I am a little taller than her.
a little, much a lot a bit ,far,any,no等可以+⽐较级
4.Tara works as hard as Tina. 塔拉学习跟蒂娜⼀样努⼒。
“...（not）as + 形容词或副词原级+ as...”是⼀种原级⽐较，意思为“......和......(不) ⼀样”。1）...not as + 形容词或副词原级+ as...表⽰双⽅在某个⽅⾯不同。如：
His English is not as good as hers. 他英语不如她的好。
He doesn’t work as hard as his brother. 他没有他哥哥⼯作努⼒。
2）as + 形容词或副词原级+ as 表⽰双⽅在某个⽅⾯⼀样。如：
She is as tall as me. 她跟我⼀样⾼。
I run as fast as he does. 我跑得跟他⼀样快。
1. ⽐较级的⼏种特殊⽤法：
(1) “⽐较级 + and + ⽐较级”或“more and more +多⾳节词”表⽰“越来越……”
如：① warmer and warmer ② more and more beautiful.
(2) “the +⽐较级+句⼦, the+⽐较级+句⼦”，表⽰“越……，越……”。
The more we get together, the happier w e’ll be. 我们越多的在⼀起，我们就越快乐。
(3) 修饰⽐较级的词有：a little, much, a lot, rather, even等，不能⽤very修饰⽐较级
He is ______ taller than me. ( A. a few B. a little C. very D. many )
(4) 两个相同对象进⾏⽐较，为了避免重复，常⽤that来代替前⾯的单数⽐较对象，⽤those来代替前⾯的复数⽐较对象。
The weather in Beijing is much colder than that in Hubei. （that=the weather）
The trees are greener in the country are much greener than ________in the city.
(5) less与more 的转换：
Math is less interesting than English. (趣味性更少些)
= English is ________interesting than math.
(6) 在⽐较级中，the other 后接复数名词，表“其它的⼀些”；any other 后接单数名词，表“任何其
它的⼀个”。如：①I’m louder than the other ______ in my class. (kid)
② I’m taller than any other _______ in my class. (student)
(7) the + ⽐较级+of the two. (the⽤来特指“⽐较…的那⼀个”)
He is ______ _______ of the two. ( tall )
2. hard-working勤奋的； work hard 努⼒地⼯作；hard work ⾟苦的⼯作
He is______________, he has to do some __________，but he ___________.
1. be talented in 在某⽅⾯有天赋 She is talented in music.
2. do the same things as me 跟我做相同的事
3. true形容词，真实的；truly副词，真地，truth名词，事实
①That’s_________. ② He _______ cares about me. ③Tell me the ________.
4. care about 关⼼，在乎 Nobody cares about me.
take care of = care for = look after 照顾 I can take care of myself.
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