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2. 插入式定語從句(亦稱為混雜式定語從句，即在關(guān)系代詞與從句中插入一個句子)

I suggest you choose someone who you think is kind and friendly.

He made another great discovery, which I think is very important to science.

1. 分詞式定語從句(即先行詞與關(guān)系代[副]詞之間被介詞短語，同位語，謂語等分隔開來)

　 I was the only person in my office who was invited to the important ball.

　 The professor is sleeping who has just comeback from abroad after a journey.

　 The world people, especially the people, who’ re friendly to us don’t like war.

3. as 引導(dǎo)的限制性定語從句與其他從句的比較

This is the same book as I lost.這本書和我丟的那本一模一樣。(定語從句)　　

This is the same book that I lost.這本書就是我丟的那本。(定語從句)　　

This is such an interesting book as we all like./ This is so interesting a book as we all like.　 這是大家都喜歡的如此有趣的一本書。(定語從句)

This is such an interesting book that we all like it. / This is so interesting a book that we all like it.　 這本書如此有趣，大家都喜歡。(結(jié)果狀語從句)

核心解讀五：

英語中常見的幾類特殊定語從句

2．a(chǎn)s 引導(dǎo)的非限制性定語從句與it引導(dǎo)的句子。

The earth is round, and it is known to all.　

The earth is round, which is known to all.　　　　

As is known to all, the earth is round.　　

It is known to all that the earth is round.　

as 具有“正如”之意，搭配的動詞一般是固定的，如：as you know/ as you see/ as we planned/ as we expected/ as is reported...

1．非限制性定語從句和單句的比較　

I am reading Harry Porter, which is an interesting book. (非限制性定語從句)

He failed in the exam. That made his parents angry.　　 (單句)

He failed in the exam, which made his parents angry.　 (非限制性定語從句)　

He has two sons.　 Both of them are teachers.

He has two sons, both of whom are teachers.

4．非限制性定語從句與并列句主句的比較，主要區(qū)別在于主句后面的標(biāo)點(diǎn)符號。

. some of them

　　　　　　　　　　　　　　　　　 ; some of them　　　　　　

1)　　 I pick up the apples　　　　 　and / but some of them　　 　were bad.

Most of them

;some of them

2)　　 I have some students　　　　 　and most of them　　 　　are from Beijing.　　　　　　　　　　　　　　　　　

,most of whom

注意：不可拆分的動詞短語介詞不能提前，如put up with；有的短語可能有不同的介詞搭配，此時需要根據(jù)上下文來確定。如：be familiar with / to ； compare with / to.

核心解讀三：

當(dāng)先行詞為表示時間的名詞(如：time, day, year, week, month, occasion)或地點(diǎn)的名詞(如：place, room, city, country)時，一般用關(guān)系副詞 when 或 where. 分別相當(dāng)于in which, at which, on which。但是當(dāng)這些表示時間或地點(diǎn)的名詞作從句的賓語時，則要用關(guān)系代詞that 或which。

I can't forget the days when (in which) I lived with you.

Can you tell me the day when (on which) the first satellite was sent into space?

China is the only country where (in which) wild pandas can be found.

I’ll never forget the village where I spent my childhood.

I will never forget the days that (which) I spent in Peking University.

(點(diǎn)撥：本句days 作spend 的賓語，故用關(guān)系代詞that / which )

I have never been to Beijing, which but I hear about .

核心解讀四：

非限定性定語從句不能用that引導(dǎo), 一般用引導(dǎo)詞which / as或who

(指人)，非限定性定語從句既可以修飾主句的部分內(nèi)容，也可修飾主句的全部內(nèi)容。as引導(dǎo)的非限定性定語從句既可以放在主句之前，也可以放在主句之后，并且指代前面提到的事情，也可指代將要發(fā)生的事情；但which或

who引導(dǎo)的非限定性定語從句不能放在主句句首。

As we all know, the moon is a satellite of the earth.

The large area is covered with thick snow, which affects people's life greatly.

His speech, which bored us to death, was over at last.

Her sister, who lived in another city, was coming to visit her.

關(guān)于非限制性定語從句，應(yīng)該注意：

3.當(dāng)定語從句為最高級時只能用of which，否則用其他介詞

I have five dictionaries of which Longman Dictionary is the best.

I have five dictionaries among which Longman Dictionary is published in UK.　

2.先行詞與介詞的習(xí)慣搭配

當(dāng)先行詞表示“領(lǐng)域、方面”時，如：aspect, respect, area, field等，用 in which；

當(dāng)先行詞表示“價格、利率、速度”時，如：rate, price, speed 等，用 at which；

當(dāng)先行詞表示“程度”時，如：degree, extent等，用 to which；

當(dāng)先行詞表示“根據(jù)、依據(jù)、基礎(chǔ)”時，如：grounds, foundation, basis等，用 on which；

The speed at which the machine operates is shown on the meter.

It is useful to be able to predict the extent to which a price change will affect supply and demand.

1.定語從句中謂語動詞或表語的搭配

　This is the college in which I am studying.

　He is the man about whom we are talking.

7.why引導(dǎo)表示原因的定語從句，其先行詞一般是reason。當(dāng)主句主語是reason時，作主句表語的成分不能有because和because of 。其結(jié)構(gòu)一般為the reason why…is that…，或者 the reason that … is that…，如：

He did not tell us the reason why he was late again.

The reason why (that)he didn't come is that he was ill.

核心解讀二：

在“介詞+which / whom”的結(jié)構(gòu)中，介詞的選擇取決于三種情況：