八年级上册英语unit3知识点归纳_八年级上册英语unit3-4知识点汇总（2019人教版）

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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 don"t _______  ________  ________（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）12345
  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.it"s 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）don"t make me _________ this or that. i"m 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.12345
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 don"t think there is anything __________ in today"s 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/hard for sb. to do sth
10.. you must be good with children / enjoy telling jokes . →
be good with sb. 对某人好；与某人相处融洽
be good with sth 意为“灵巧的；与……相处得好”。
例如：she is good with her hands. 她手很巧。
he is very good with the children. 他与这些孩子处得很好。
be good to意为“对……友好”。
例如： my friend was good to me when i was ill. 我生病时我的朋友对我关怀备至
be kind to sb对......友好
enjoy doing = like doing sth. （现在）喜欢做某事
13. he can’t stop talking . →
stop doing sth. 意为“ 停止（正在）做的事情” ”即“不做某事了
如：when the teacher came in , the students stopped talking and laugh . 、
老师走了进来，学生们停止了谈笑。
he stopped watching tv and began to read english.他停下来看电视，开始读英语。
 stop to do sth. 意为“ 停下（正在做的事）去做某事” 做下面的事”，。
如：he stopped to write a letter to her . 他停下手边的工作，给她写信。
unit4难点讲练
讲一讲 1
what’s the best clothes store in town?
城里最好的的服装店是哪家？。
（1）此句中best 是good 的最高级形式，其前应加定冠词the。
（2）in town 在城镇，town前加不加任何冠词或修饰成分。in the city 在城市， in the country在乡村；在农村。city/country 前加定冠词the。例如：
  do you like living in town or in the city? 你喜欢住在城镇还是住在城市里？
 （3）clothes 本身是复数形式，后面动词应用复数。clothing 是复合名词，衣服的总称，没有复数形式，后面动词应用单数。例如：
the clothes in that shop are expensive. 那家店的衣服贵。12345
all the clothing in the shop is very cheap. 这家店里的衣服很便宜。
练习：用括号内所给词的正确形式填空。
1. what’s  _______ (good) clothing store in town?
2. who is  _______ (short),ann, sally  _______ or mary?
3. among the three boys he works the  _______ .
   a. hard b.harder c.hardest d.most hard
4）michael is taller than any other student in his class.(同义句转换）
   michael is  _______   _______   _______ in his class.
5.你认为谁是最佳表演者？
   who do you think is  _______   _______   _______ ?
讲一讲2
it has the most comfortable seats. 它有最舒适的座位。
you can sit the most comfortably because they have the biggest seats.
因为它们有最大的座位所以你可以坐得最舒服。
 comfortable 为形容词，意为“舒适的”，用来修饰seats。most comfortable 是它的最高级形式，在句中使用时，要在其最高级前加the.
类似的词在本单元还有许多。例如：
beautiful－beautifully，cheap－cheaply，careful－carefully等
练习：用所给词的正确形式填空 。
6. －there are ___________seats in town cinema.
   －yes, you can sit there ____________ .(comfortable)
7. －can you buy clothes the most ?
   －yes, i can buy the  _______ clothes.(cheap)
8. he is a  _______ man, he does everything __________  . (careful)
9. tom sings _________in his class. he can sing many________ songs .(beautiful)
10. －did your father have a __________ breakfast this morning?
    －yes, he had breakfast__________. (quick)
  讲一讲 3
it’s the closest to home. 它离家最近。
（1）close 在此句中为形容词，意为“近的，接近的”，既可指时间，也可以指空间上的。closest 为形容词 close的最高级形式。其反义词为far, 近义词为near。在表达“离……近”时用（be）close to 结构。例如：
 the post office is close to the park. 邮局离公园近。
 he sat close to us. 他挨着我们坐。
 ① close与near都意为“近的”，但close比near表达的距离更近，相当于very near，可以近至几乎相接触，而near意为“附近的；邻近的。”：
     my home is near our school.我家离我们学校很近。
      ② close还是一个动词，意为“关；关闭”。其反义词为open。例如：
     please close the windows before leaving. 离开前请将窗户关上。
     don’t close your eyes, please. 请不要闭上眼睛。
（2）home 在这里为名词，意为“家”，包含“爱；温暖；舒适；安全”等意义，通常不用冠词修饰。例如：
     home is where the heart is.心在哪里，哪里就是家。
练习。11. the store is the __________my home. i often do shopping in it.12345
a. near   b.closest   c.farthest     d.closes
12. －david ,where do you live?
   －it’s__________ taishan.
   a. close from b.closing to c.close to d.far to
13. my home is __________our school, so i have to take the bus.
   a. far from  b.closed to c. far to  d.near.
讲一讲 4
it’s always interesting to watch other people show their talents.
观看别人展示他们的天赋总是很有趣。
1.it’s interesting to do sth. 意思是 “做某事有趣”， 它是it’s +adj+to do sth.句型的一种形式，it 作形式主语，to do sth.是真正的主语。例如：
6. watch 在句中是感官动词。watch sb.do sth. 意为“观看某人做了某事或经常观看某人做某事”，强调“观看动作的全过程”。例如：
i  watched them play football the whole afternoon.整个下午我在看他们踢足球。
 ①watch sb.doing sth. 则表示“观看某人正在做某事”强调“动作正在进行”。例如：
     i’m watching them playing football. 我正在观看他们踢足球。
      ②hear，see, feel, notice 等感官动词的用法与watch一致。例如：
     i saw him get on the bus. 我看见他上了公共汽车。（动作已完成）
     i saw him getting on the bus. 我看见他正在上公共汽车。（动作正在进行)
练习：14. i saw my father__________ . it made me __________better.
   a.smiling; to feel b.smile; feeling  c.smile ; feel  d.smile; to feel
15. the young woman watched her daughter_________ a yo-yo yesterday afternoon.
   a.to play  b.to play with   c.playing with   d.played
16. i often hear her__________ in the room.
   a.sing  b.sang   c.singing  d.to sing 
17. it’s nice of you __________me with my math.
   a.help   b.helping  c.to help  d.helped12345

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