八年级上册英语unit3-4知识点汇总
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八年级上册英语unit3-4知识点汇总
Unit3重点讲解
1.“看起来”两不“像”:look like, look the same
As you can see, in some ways we look the same, and in some ways we look different.就像你看到的那样，在某些方面我们看起来一样，在某些方面我们看上去不同。
look like, look the same都可以表示“看起来像”之意。
(1)look like是由“不及物动词look+介词like”构成的动词词组，后面需接一个宾语。若表示“某人(物)十分相像”可用very much修饰。
Lily looks like your younger sister very much. 莉莉看上去很像你妹妹。
(2)look the same是一个固定词组，表示主语所包含的两个或两个以上的事物看起来一样，主语一定是复数，其动词look不可能出现looks形式。Look the same后面不再接其他成分，也不能用very much修饰。
Are you twins? You look the same. 你们是双胞胎吗?你们看起来一样。
【练习】
(1)Lucy looks _______her mother.
A: same B: the same C: as D: like
(2)Although they are sisters, they dont _______ ________ ________(看起来一样).
2.all, both“都”不同
We both have black eyes...我们都有黑色的眼睛......(P33)
both 与all的用法相似。both强调两者都，而all则强调三者或三者以上都。
both可用作形容词、代词和副词，其用法如下：
词条 区别 例句
代词 “两者，双方，两人”，与of连用 Both of them are teachers.他们两都是老师。
Both of the students are here.=Both the students are here.
=The students are both here. 两个学生都在这儿。
副词 “两者，两者都”，位于行为动词之前，be动词、助动词、情态动词之后。 They both went shopping last Sunday. 上周日他们俩都去购物了。
The twins are both students.这对双胞胎都是学生。
形容词 “两者的，双方的” She wants both dictionaries.这两本书她都想要。
Both the answers are wrong.这两个答案都是错的。
连词 “......和....都”“既......又......”，用于连接两个并列成分;连接两个并列主语时，谓语动词用复数。 He speak both English and French. 他既会说英语，也会说法语。
Both you and I were wrong.你和我都错了。
【练习】
1、选词填空(all/both)
(1)_________of the twins study in No.1 Middle School.
(2)_________Tom and John came over to our house for dinner.
(3)_________the students in his class went to the park last Sunday.
2、那对双胞胎都喜欢运动。
They twins ________ ________ sports.
3、 至于其他科目，我全都喜欢。
As for other subjects, I likes them ________.
3.“无论如何”however
However, we both enjoy going to parties. 不过，我们两个都喜欢参加聚会。(P33)
however可以作副词，含义为“但是，可是，不过”。多插在句中，有时放在句首或句尾。
However, they did not seem to have much effect. 不过，他们似乎没有太大的作用。
He said that it was so. He was mistaken, however. 他说事情就是这样。然而，他错了。
【练习】
1.Its raining hard. H________, I think I should go to school on time.
2. He is very young. ___________, he knows several languages.
A: Though B: However C: So D: Because
4.重点短语
(1)in some ways 在某些方面，类似的短语有：in many ways在很多方面。
(2)more than 超出，常用在数词之前，表示数量超过多少，相当于over.
(3)in common公有的，共有的
(4)the same as...和...一样，常与be动词连用。其反义短语为be different from，意为“和......不同”。
(5)not as/so...as... 不如......，中间用形容词或副词的原级。 其肯定形式为as...as...，意为“与......一样......”
【练习】
(1)这两个小故事有很多相似之处。
These two short stories have much ________ _________.
(2)在某些方面，困难是好事。
_________ _________ _________, different is good.
(3)昨天他不如李林来得早。
He _________ come _________ _________ _________ Li Lin yesterday.
5. As you can see , in some ways we look the same , and in some ways we look different .
这里“as”表示正如的意思。如，As you all know, she’s a very good tescher.
注意：“way”有不同的搭配，如，
Do it in this way. 按照这样办法，以这样的方式。
He solved this math problem,in many ways.在很多方面。
In a way，he is right. 在某种意义上。
Don’t stand in the/my way. 挡我的道。
She did her shopping on the way/on her way to the factory.
6.. I think a good friend makes me laugh . →
make sb. do sth. 使某人做某事
help sb. (to)do sth 帮助某人做某事
let sb.do sth 让某人做某事
(1)Dont make me _________ this or that. Im too busy.
A. to do B. do C. doing D. did
(2)His joke made us ________.
A. laugh B. to laugh C. laughing D. Laugh
(3)My father ________(做)a desk for me yesterday.
(4)The boy can _________(铺)his bed now.
7.、不同的“兴趣”interest, interesting, interested
【练习】选词填空(interest/interesting/interested)
(1)The book is _________. Most of the teachers are _________in it.
(2)The story is the _________ of the two.
(3)I dont think there is anything __________ in todays newspaper.
(4)The boy has much _________ in drawing.
(5)他们昨天参观了许多北京的名胜。
They visited many ________ __________ __________ in Beijing yesterday.
(6)3岁的时候，他开始对音乐产生了兴趣。
He _________ _________ ___________ music when he was 3 years old.
8. For me , a good friend likes to do the same things as me . →
like to do sth. 喜欢做某事 指的是短期的喜欢，并不是一直的
like doing sth 喜欢做某事 指的是长期的喜欢，一直都这样
一般情况下，经常用like doing sth这个结构.....
如 Today I would like to see a film:今天我想去看电影。
When I am free, I like seeing films:我有空的时候喜欢去看电影
ask to do sth 让做某事
9. That’s not very important for me ….
固定句型It is important for sb. to do sth
It is easy/h
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