(共19张PPT)
Unit 6 语法知识精讲
1 |状语从句的省略
When thanking the Committee for the honour,Tu Youyou said...当感谢组委会给的荣誉时,屠
呦呦说……
He broke his legs while riding.(此处while riding的完整形式是while he was riding)他在骑车
时摔断了腿。
I wonder why you won't do it as told to. It's the third time you have done so.(此处as told to的
完整形式为as you are told to)我想知道为什么你不按告诉你的那样做。这是你第三次这样
做了。
结构
用法归纳
①当状语从句的主语和主句的主语一致,或者从句的主语为it,且从句的谓语中包含be
动词的某种形式,如be doing,be done,be to do,be+adj.等时,可以省去 和be动
词,保留be动词之后的部分。
②常见的可以省略的状语从句:
·when,while,until,once引导的时间状语从句;
·if,unless引导的条件状语从句;
·though,although,even if/though引导的让步状语从句;
·as though,as if引导的方式状语从句;
·than引导的比较状语从句。
③习惯表达:if possible/necessary/so/not/true/ever如果有可能/有必要/是这样/不是这样/是真
的/曾有过(的话)
从句的主语
2 | not only...but also...不但……而且……
This is not only an honour for myself, but also recognition of and encouragement for all
scientists in China.这不仅是授予我个人的荣誉,也是对全体中国科学家的认可和鼓励。
结构
用法归纳
①not only...but also...为并列连词,用于连接两个并列的成分,重点在于后者,also有时可省
略。当它连接两个并列的主语时,谓语动词遵循 原则,即谓语动词应和邻近的
主语保持人称和数的一致。
②当not only...but also...连接两个并列分句,且not only位于句首时,not only所在的分句
需用 结构。
就近一致
倒装
3 | so...that...如此……以至于……
结构
用法归纳
so...that...引导结果状语从句,其具体用法如下:
so+ +that从句
副词
much
特别提醒
so...that...结构中的“so+形容词/副词”可以提至句首,以加强语气,但要注意主句要用倒装
形式。
So generous is he that we all admire him.他是如此大方,我们都很钦佩他。
结构拓展
①so that可引导目的状语从句,意为“以便,为了”,从句中通常含有might、could、
can、will等情态动词。so that可与in order that、in order to、so as to等进行转换。
He works hard so that he can pass the exam.=He works hard in order that he can pass the ex-
am.=He works hard in order to/so as to pass the exam.他努力学习,以便能通过考试。
②so that可引导结果状语从句,意为“因此,以至于,所以”,有时前面有逗号与主句隔开。
He committed murder so that he was arrested.他犯了谋杀罪,所以他被逮捕了。
③such...that...可引导结果状语从句, 意为“如此……以至于……”。其具体用法如下:
such+ +that从句
介词+which/whom引导的定语从句
一、“介词+关系代词”结构中的关系代词
用法归纳1
“介词+关系代词”结构中的关系代词通常用① 或② ,而不用
who或that。如果先行词指人,则用“介词+whom”;如果先行词指物,则用“介词+which”;
关系代词有时也用whose(作定语)。
whom
which
二、“介词+关系代词”结构中的介词的确定
1.一先
情景导学2
This is the camera with which he often takes photos.这就是他经常用来拍照的相机。(with the
camera)
This is the house in which I lived two years ago.这是我两年前住过的房子。(live in the
house)
用法归纳2
看③ 。介词往往和先行词构成固定搭配,如表示时间的词常和on、in搭配,
表示地点的词常和on、in、at搭配,表示原因的词常用for搭配,表示方式常用in、by、with
等。
先行词
2.二动/形
情景导学3
He is a person of whom everyone has heard.他是一个每个人都听说过的人。(hear of)
Yesterday we visited the West Lake for which Hangzhou is famous.昨天我们参观了西湖,杭州
因其而出名。(be famous for)
用法归纳3
根据从句中④ 或⑤ 的某种习惯搭配确定介词。
动词
形容词
特别提醒
有一些含介词的动词短语不可拆开使用,拆开后表达的意思会变,如look after、look for、
take care of等不能把介词移至which或whom之前。
3.三意义
情景导学4
He was educated at the local high school, after which he went on to Peking University.他在当
地的高中接受教育,之后他接着上了北京大学。
用法归纳4
通过判断句子要表达的意思来确定合适的介词。
三、“名词/数词/代词+介词+关系代词”结构
情景导学5
In each packet there are batches of letters, some of which are undated.每个包裹里都有成批的
信件,一些是未标注日期的。
Many young people, most of whom were well-educated, headed for remote regions to chase
their dreams.许多年轻人,其中大多数受过良好的教育,前往偏远的地区去追逐自己的梦
想。
用法归纳5
此类结构常见的有“one/all/some/several/a few/a little/many/more/⑥ /the largest+of
+which/whom”。
most
情景导学1
We are going to have a spelling test next week.我们下周会有拼写测试。
Peter passed his examinations with success.彼得成功地通过了考试。
Cathy finally admitted she was wrong.凯茜最后承认她错了。
The prince and the princess got married eventually.王子和公主最终结婚了。
He was so clever that he got the answer in half a minute.他如此聪明,半分钟内就得到了答案。
Your son is smart, so he'll do well at school.你的儿子很聪明,所以他在学校会做得很好。
同义词和反义词
用法归纳1
(1)从上面的例句中找出同义词:
① — n.
② — adj.
③ — adv.
(2) 同义词是意义几乎相同的一组词。它们的词性④ 。
test
examination
clever
smart
finally
eventually
相同
情景导学2
These are the advantages of women, and the disadvantages of men.这些是女人的优势和男人
的劣势。
Whether you support it or oppose it, I will insist on writing novels.无论你支持还是反对,我都
会坚持写小说。
Computers bring a lot of positive effects to our life, but we also find there are some negative
ones.电脑给我们的生活带来了很多积极的影响,但我们也发现有一些消极的影响。
用法归纳2
(1)从上面的例句中找出反义词:
⑤ — n.
⑥ — v.
⑦ — adj.
(2)反义词是意义相反的一组词,它们的词性⑧ 。
(3)一般情况下,词根可加上表否定的前缀或后缀构成其反义词,比如⑨ 、in-、im-、
un-等前缀, -less等后缀。
advantage
disadvantage
support
oppose
positive
negative
相同
dis-
即时巩固
Ⅰ.单句语法填空
1.She also admitted that a relatively small number of women were studied, all of
were from Sweden.
2.It is our hope that in coming decades, advances in science will offer
new perspectives from we can study how people manage their lives.
3.Restaurants can offer a choice of music along with the various food choices on
the menu, allowing customers more control over the atmosphere in they are dining.
4.They rose in the ranks not by being friendly but by smoking cigarettes, breaking
rules and playing jokes on others, among I soon found myself.
whom
which
which
whom
5.As a result, I've always kept up with the newspapers, faithfully read news mag-
azines and learned to really enjoy books, all of have been an invaluable help to me
in radio and television reporting.
6.I like the black pen with I wrote a poem.
Ⅱ.完成下列含定语从句的句子
1.我永远都不会忘记我开始上高中的那一天。
I'll never forget the day I started high school.
2.我父亲工作的公司的老板是一个非常友好的人。
The boss company my father worked is a very kind person.
3.这个国家有许多种鸟,其中一些濒临灭绝。
There are many kinds of birds in the country, are endangered.
which
which
on which
in whose
some of which
Ⅲ.写出加黑单词的同义词
1.She is a clever girl in our minds.
2.My father is a hard-working man.
3.He ran up the mountain quickly.
4.They want to find a stable job.
smart/bright/intelligent
diligent
fast
career
Ⅳ.写出加黑单词的反义词
1.He is a warm-blooded boy and likes to help others.
2.We finished the work carefully.
3.He folded the paper and made a boat.
cold-blooded
carelessly
unfolded