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北师大版高中英语必修3 Unit7 名师语法:Lesson1 语法精讲练

北师大版高中英语必修3 Unit7 名师语法:Lesson1 语法精讲练
北师大版高中英语必修3 Unit7 名师语法:Lesson1 语法精讲练

名师语法:Lesson1 语法精讲练

观察下列从Reading中选取的句子,体会定语从句的用法。

①Eric set sail once again,this time with 25 ships,of which only 14 made it to Greenland.

②Eric reached Greenland and discovered that people could live in the place where he landed.

③Biarni was the man with whom Leif discussed his plans.

④By around 900AD,there were many places in Northern Europe where the Vikings chose to live.

[自我总结]以上四句均为复合句,每句中都含有一个。其中①③句的分别为25 ships;the man,前均有介词。②④句的分别为the place;many places,都是where。

【答案】定语从句;先行词;关系代词;先行词;关系副词

关系副词和“介词+关系代词”引导的定语从句

Ⅰ.关系副词引导的定语从句

当先行词在定语从句中作状语时,通常要用关系副词引导定语从句。常用的关系副词有where,when,why等。

一、关系副词where

1.where引导的定语从句的先行词往往是表示地点的名词(如place,room,house,spot,school,country等),在从句中作地点状语。

They went into the hall where the meeting was being held.他们走进正在开会的大厅。

2.where可以引导非限制性定语从句。

Galileo lived in the city of Pisa,where there is a leaning tower about 180 feet high.

伽利略住在比萨城,那里有座大约180英尺高的斜塔。

3.关系副词where常可用“介词+关系代词”构成的表示地点的介词短语代替。

The office where(at which)he works is not far from here.他工作的办公室离这儿不远。

Japan is the place where (in which) earthquakes frequently happen.日本是地震频繁爆发的地方。

【疑难辨析】

where引导定语从句和状语从句的区别

引导定语从句时,where是关系副词,在从句中作地点状语,其前有表示地点的名词作先行词,从句修饰先行词;引导状语从句时,where是从属连词,从句修饰主句的谓语动词,where前面没有表示地点的名词。

He's got himself into a dangerous situation where he is likely to lose control over the plane.(定语从句)他使自己陷入了一种危险的情况,他很可能会失去对飞机的控制。

When you read the book,you'd better make a mark where you have questions.(状语从句)

读这本书的时候,你最好在有疑问的地方作一下标记。

二、关系副词when

1.when引导定语从句时,先行词往往是表示时间的名词(如time,day,week,month,year等),在从句中作时间状语。

He came at a time when I least expected him.

他在我最意料不到的时候来了。

I'll never forget the day when I left for college with my father.我永远不会忘记我和父亲动身去大学的那天。

2.when可以引导非限制性定语从句。

In the old days,when I was a little boy,the city had no industry to speak of.

在过去,那时我还小,这个城市没有工业可言。

3.关系副词when有时可用“介词+关系代词”代替。

I still remember the day when(on which)I joined the Youth League.我仍然记得我加入共青团的那一天。

三、关系副词why

1.why引导定语从句时,先行词往往是表示原因的名词(如reason,

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