九年级英语下第二单元

1、九年级英语第二单元知识点总结1. mix sth together 或者 mix sth and sth together 把。混合在一起，有时可省略together. Mixed 做adj 意为混合的，混杂的。名词为mixture ,意为，混合体，混合物。2. 情态动词的推测。A,can 用来推测时，只用于疑问句或者否定句That man can't be Mr Li.He has gone to Beijing with his wife.Would 表推测时，只用于肯定句。指主观上认为不是很正确的可能性。I think that it would take you much ti

2、me.Must 表推测时用于肯定句，意为一定，肯定。Must be 表示对现在情况的推测。Must have done 表示对过去情况的推测。3. at the same time 意为同时。还可表示但，然而。That is a difficult problem ,at the same time ,it very interesting.4. living 的用法。Living做形容词，意思是活着的，有生命的，可以指人，也可指物。强调说明尚在人间。建在。另外，living还有充满生气的，活生生的在句中作表语或定语作表语与alive的意思相同。I think the old man is s

3、till living.(作表语)This is a living tiger. (指物，作定语)Alive 与live 的区别Alive 做形容词，意为活着的。常用作表语形容词，或作后置定语。或宾语补足语。一般用来指人，也可指物。Who is the greatest man alive (=living man) 后置定语。We found the patient alive.(宾补)Live 意思是与生命的，活着的，一般用于修饰动物，在句中一般用作定语。The cat was playing with a live mouse.Jin yong is one of the greates

4、t and oldest living writer .he is still living .5. what if 的用法。What if.?意思是 如果.将会怎样？What if it rains tomorrow?>6. do with 意为“采取.措施，处理。” what .do with.“如何（怎样）处理.”what did you do with the library book?Deal with 也表示处理，应付，但所搭配的疑问词不同，deal with 在疑问句中与how 搭配，而do with 与what搭配。What will you do with the le

5、tters?=how will you deal with the letters?7. use sth to do sth 意为“用.来做.”,相当于use sth for doing sth.被动语态中be used to do sth,be used for doing sth.We use pens to write.We use clothes to keep /for keeping warm.=clothes are used to keep /for keeping warm.We use pens to write.We use clothes to keep/for kee

6、ping warm.=clothes are used to keep/for keeping warm.Be used as 表示.把.用作.as是介词，意为作为。The stick is used as a ruler.Be used by 被.使用，介词by 后接动作的执行者.English is used by travelers and business people .Used to do sth 过去经常干某事。Be used to doing sth 习惯于干某事8. either also too 的区别Either 一般用在否定句中。，而且放在句尾。Also用在肯定句，位于

7、be 动词，助动词或情态动词后实一动词前，too用于肯定句。9. identical 的用法它的反义词为different .他经常用在下列结构中。Be identical to/with .和.完全一样Be identical in .在某方面相同。Her hat is almost identical to/with mine.My opinion is identical with his The two shirts are identical in size and colour.考例：1.the sister were identical _appearance and chara

8、cter.2. my advice is identical _yours.3. Her pen is almost identical _kate's10. expect for 的用法。(1)Except for 意为除.之外,用于表示对主要部分的肯定和对局部的否定，不表示同类事物之间的关系。用于叙述整个情况之后，在细节上加以修正，补充，有惋惜美中不足之意。Mr smith is a good， man,expect for his bad temper.The movie was good expect for the ending.(2) .expect for +n=expe

9、ct +that All are here expect for the absence of Tina.=all are here expect that tina is absent.Besides 除.之外还有.指包含本身在内，有肯定和附加的意思。besides 作介词后接名词，代词，动名词 但不接从句。We all went besides him.（3） expect 和expect的用法区别。Expect 的前后 必须要有一对相对称的同类词语。Expect for 一般用于前后没有对称词语的场合。He had considered everything expect the .(e

10、verything 与weather是一组对称词语)The retired worker waters his garden every day on rain days.(4) .but 和 expect可换用但but 多余no one ,nobody nothing all everyone everything 等词连用。They are all wrong but me.There is nothing but a card in the box.11. the same +n+as 与.相同后接名词代词，或从句，如主句为一般将来时，从句用一般现在是。He has the same f

11、ruit as you.The same +n+as 表示与.一样，有时可与as+adj+as互换。His coat is the same size as mine.His coat is as big as mine.12. not only.but also 的用法。它的意思为不但，而且主要用于连接两个并列成分（主语，谓语，宾语，表语或状语）但连接主语时，句中的谓语必须和靠近的那个主语在人称和数上保持一致。Not only you but also jack has been to hangzhou .Not only Tom but also I am an engineer.Tom

12、can not only sing,but also dance.I saw not only Tom but also Jack in the park.Not only .but also.还可连接两个分句，但第一个分句的主语和谓语要到装。Not only can he speak English , but also he can speak Spanish.Not only did the teachers take part in the English evening party,but also they sang songs at the party.13.So +助动词/情态

13、动词/系动词+主语 此句型是主谓倒装结构，表示前面所属的肯定情况也适合于另一主语，其中so作也这样也如此，此事要注意so后的助动词；系动词或情态动词须同前一句的谓语动词保持一致。He is an actor,so is his brother.Jim went to the beach,so did his parents.She can play the piano,so can I.so的这种用法只能用于肯定句，否定句中要改为neither 或nor 结构为neither/nor +助动词/BE动词或情态动词+另一主语，表示该主语的否定情况也和前句一样不，时态也和前句保持一致 He doe

14、sn't like eating apples,neither do I .Tom couldn't read ,nor could Jack.I have never been to Beijing ,neither /nor has my brother.14. what if .?是what will happen if .?的缩写形式，意为如果.将会怎用陈述语序。What if he comes from tomorrow?What if she doesn't come?What if 还可以用来提出建议和邀请，或征求对方意见。相当于shall we.?或wh

15、at about.?意为如果.怎么样？What if we have a picnic next week?15. exactly -adv恰恰，Exact -adj 确切的16. for example 与such as For example 以为例如可与for instance 互换，举例说明同类人或事物，后面常跟句子并且在句中作插入语，可置于句中，句首或句后。He studies French very well.for example ,he could write articles in French for a newspaper.Such as 用来列举同类人或事物中的几个例子

16、。其后接名词，动词不定时，或介词短语。，所连接部分一般做同位语，其进一步说明名词的作用。Jim likes ball games,such as football and volleyball.17. change 的用法Change sth into .把.变成.Chang sth for.把.换成She took the dress back to the shop and change it for another.The next morning ,the water had changed into ice.Change 还可以作名词，意为变化，改变 变换Great changes

17、have taken place in our city.Please give him some change.18. divide 的用法。Divide 作动词意为分开 分割指把一个整体分成若干部分多于into 连用。I will divide the class into four parts.Separate 也可以表示把.分开指把相邻或者相近的人或物分开，常与from 连用，二divide 表示把一个整体分成几个部分。长于介词into连用。The river separates this village from that one.We can divide the class in

18、to four groups.19. wear put on have on dress 与be in 的区别put on 表示穿上戴上，表示穿的动作，宾语如果为代词，放在中间。It is cold outside .put on more clothes.Have on 意为穿着之状态，不用于进行时，宾语是代词，只能放在on前。He had nothing=he had no clothes on.Be in 表示穿的状态，后面常接表示颜色和衣服的词。Is your son in a blue jacket?Dress b表示穿衣，宾语一般是表示人的名词，而不是表示衣服的名词。Will yo

19、u dress the children?20. damage 与hurt 的区别。Damage 意为损坏，损害，常指对房屋庄稼车辆等造成用途，表面及价值等的损失。一般指自然灾害，或人为造成。The storm damaged a lot of houses.Hurt 指伤害肉体和精神上的伤害He was deeply hurt by my words.21. else 的用法。Else为形容词，别的其他的，常与sb sth anybody I don't know anything else.Do you want to see anybody else?Else 还用在who wh

20、at where how when why 等疑问代词或疑问副词后What else did she tell you?Who else is coming?Else 于 other 的区别，other是形容词，用于名词的前面，else作副词或形容词用时，常修饰不定代词或疑问词What else would you like ?=what other things would you like?22.imagine的用法，意思：想象, 猜想, 推测, 认为, 相信其后可接宾语从句，名词或动名词（1）例子：You can imagine the situation there. 你可以想象那里的

21、情况。（2）imagine引导从句：He imagines that people don't believe him. 他总是认为人们不信任他。I can't imagine what has happened. 我想像不出发生了什么事。（3）固定用法：imagine one's doing例子：I can't imagine his eating up the bread.我不能相信他把面包吃光了。I can't imagine his being late for school.我不能相信他上学迟到。记住，没有imagine to do这种形式。

22、Imagine 与think suppose ,believe expect等词一样，在主从复合句中，如果主句的主语是第一人称，that引导的宾语从句如还有否定的意思，通常要否定前移，但翻译成汉语时，任然翻译到从句。23. rest 做名词，意为其余，剩下，the rest of 意为其余的，剩余的，the rest 作主语时，其后接of 短语时，谓语动词的单复数取决于of 后接的名词的单复数，the rest 作主语时，谓语动词依据它所指代的名词而定。You can take the rest of fruit away.The rest of the books were taken to

23、 the library.Those are mine,the rest are yours.24. find vt.找到, 发现, 感到, 查明, 得到, -用在句子中强调的是找的过程 例如To come upon after a search:找到：通过寻找遇到：find out 强调寻找后的结果To ascertain (something), as through examination or inquiry:查明：如通过观察或询问查明（某事）：I found out the phone number by looking it up. If you're not sure,

24、find out.通过查找我查到了电话号码。如果你不肯定，查一查Most embezzlers are found out in the end.大多数贪污犯最后都被查出并逮捕归案25.think既可以作及物动词也可作不及物动词。纳如：Think before you act先思而后行。The teacher told me to try to think in English当think用作及物动词时，其后习惯搭配主要有如下几种句式结构：1think+从句I think（that） it is a good thing我想这是件好事。2think+名词或代词I'll think the matter over这事我得仔细考虑。3think+名词或代词+名词或形容词（宾补）He thinks himself very cleverThe doctor think that is a good thing医生认为这是好兆头。4thinkit（形式宾语）+形容词或名词（宾补）+不定式动名词从句（直接宾语）I don't think it possible to master a foreign language without much memoryworkI think it no use writing to him我认为给他写信没用。5think后的否定