限制性定語從句和非限制性定語從句最大的區(qū)別
非限制性定語從句只是對主句或主句中所出現(xiàn)的某個名詞的補(bǔ)充說明和解釋去掉對主句影響不大
限制性定語從句是主句當(dāng)中不可缺少的一部分
Mr Smith was a famous person in American history.
Mr Smith who died on July 17th at 84,was a famous person in American history
There were very few passengers,who escaped without serious injury.
旅客很少，他們沒有受到重傷都逃出來了。
There wer vey few passengers who excaped without serious injury.
沒有受重傷而逃出來的旅客很少

The taxi drivers,who knew about the traffic jam,took another road.
所有司機(jī)都知道堵車的事，都走了別的路
The taxi drivers who knew about the traffic jam took another road,and others who didn't know about the traffic jam still took this heavy road.
得知堵車的司機(jī)走了別的路，不知道堵車事件的司機(jī)仍然走這條路

who引導(dǎo)的非限制性定語從句主要指人做主語
指代事物在非限制性定語從句當(dāng)中只能使用which
He lent me a thousand dollars,which was exactly the sum I needed,
指代時(shí)間when、地點(diǎn)where
He was left on the desert island,where he stayed for as long as three weeks.

found: 建立　　set up  eatablish

live-lives

which指代friendly dogs
The panda,which was brought from China,was used as a symbol of friendship
Now that: 既然　　用做時(shí)間連接詞，后面通常跟完成式
Now that you have left university,you have to find a job.
用做原因連接詞時(shí)，后面時(shí)態(tài)不限
Now that you won't help me,I must do the job myself.

whoever,whatever,whenever,wherever,whichever,however
== no matter who/what/when/where/which/how
You can telephone me whenever you like.
Whichever day you come,we'll be pleased to see you.
Wherever you go,I'll follow you.
However busy you are,you must spare some time to study English.

Despite: 介詞---in spite of
rashly: 莽撞的　　　attempt to do something --try to do something
there + be
There are still a few students studying English in the classroom.
in cars--by car
<I>about:</I> 到處，周圍
Don't litter waste paper about.  look about  go about  run about
wander about
keep: 使某人或某物處于某種狀態(tài)，經(jīng)常和介詞短語，形容詞，分詞（現(xiàn)在分詞和過去分詞）搭配使用，表示一種狀態(tài)
Keep him out.   Keep him in.        Do keep the cat in the room
表示邏輯的主謂關(guān)系－－現(xiàn)在分詞　　　I'm sorry to keep you waiting.
表示邏輯的動賓關(guān)系－－過去分詞　The lamb was kept tight to a tree

quite the opposite.

prefer something to something
I prefer reading to doing nothing. 
The boy prefers apples to bananas.
prefer to do than do something
He prefers to read than do nothing

The regular visitors to BeiJing

Mike,who loves chess very much,enter for the game.

【Special difficulties】

1...what...
2...When...
3...Who...

【Multiple choice questons】

1...C...
be best known for = be famous for,眾所周知

2...C...
the main advantage.

3...D...
occupation: 事業(yè)，undisturbed: 不受打擾的

Structure
4...d...
名詞作表語，at, 介詞短語作狀語

5...a...
形容詞或副詞和enough to do 搭配
b選項(xiàng)錯在so rash as to,You are so kind as to help me.

6...a...
with的復(fù)合結(jié)構(gòu)形式
A large car,with its headlights on and its horn blaring,roared down the arcade.
With so many people around me,I fell happy.

7...C..
讓某人做某事：let sb do

8...C...
泛泛的概念采取一般現(xiàn)在時(shí)

Vocabulary

9...b...
強(qiáng)調(diào)兩者之間

10...a...
whenever=if ever: 無論什么時(shí)候，只要情況是如此
Whenever(if ever) you pour oil on water,it floats.
in case主要是討論預(yù)防措施
You should insure your house in case there is a fire.

11...d...
drive

12...c...
wander

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