外研版（2019）必修第一册Unit 6 At one with nature Using languages 课件 (共14张PPT)

(共14张PPT)
Period 2 Using language
Unit 6 At one with nature
1. To understand the important sentence patterns and learn to use them.
2. To learn the usage of some important words.
3. To practise the language points.
Learning aims
Leading in
This is the place where we lived for 5 years.
I know the reason why he did so.
I remember the day when we met.
in the place
for the reason
on the day
What do “where”, “why” and “when” refer to
(1)“介词+关系代词”引导定语从句
当关系代词在定语从句中作介词的宾语时，通常用‘介词+关系代词’引导定语从句。如果关系代词在句中指人，则用“介词+ whom”；如果指物，则用“介词+ which”。
The man by whom the thief was caught was a good policeman.
那个抓住小偷的男人是个优秀的警察。
Grammar
定语从句——介词+关系代词
名师点津（1）when =at / in / during / on + which
（2）where =in / at / on + which
（3）why =for + which
The date when I joined the army was October 12，1960.
The date on 　　　　 I joined the army was October 12， 1960.
The house in which Mark lived is now a library.
The house 　　　　 Mark lived is now a library.
Is that the reason why she suddenly changed her mind
Is that the reason for 　　　　 she suddenly changed her mind
which 　
　where 　
which
This is the reason for _______ I was praised by my chemistry teacher.
【即学即练】单句语法填空
which
(2) 介词选用的规则
介词的选择要根据其与先行词的关系以及句意决定，在定语从句中，经常可以根据谓语动词的搭配习惯来确定介词。
from
to
This is the book _______ which I got the story.
Tom is the very person ____ whom I will turn when in trouble.
【即学即练】单句语法填空
③ I remember the day 　　　　 which I settled in China.
I remember the days 　　　　 which I lived here.
I remember the month 　　　　 which I stayed there.
on　
during　
in 　
This is the book 　　　　 which I spent 5 dollars.
This is the book 　　　　 which I paid 5 dollars.
This is the book 　　　　 which I learnt a lot.
This is the book　　　　 which Tom often talks.
My computer， 　　　　 which I can’t surf the Internet，crashed yesterday.
This is the man to whom you could turn for help.
This is the man 　　　　 you could 　 　for help.
on　
for　
from　
about 　
without 　
whom　
turn to 　
(3) 其他注意事项
含有介词的动词固定短语在定语从句中一般不拆开，在这种情况下，介词仍然放在后面，如hear from, look after等。而在介词处于句尾时，句中的关系代词可以省略。
I met the child whom I looked after ten years ago.
我遇到了十年前我照料过的那个孩子。
I wanted to visit the house which my grandparents Iived in.
我想去看看我祖父母曾经居住过的房子。
　 where 引导的定语从句与状语从句的区别
定语从句　　
　地点状语从句　
　地点状语从句 　
判断下列句中的where 从句是定语从句还是状语从句
（１）Is there a shop around where
（=in which）I can blow my bike tyres up ______________________ 　　　　
（２）Where there is a will，there is a way. ______________________ 　　 　　　　
（３）We should go where we are needed. ______________________ 　　 　　　　
【即学即练】
Summary
“介词+关系代词”引导的定语从句:介词 + which/whom
定语从句中介词的选择:根据其与先行词的关系以及句意决定
Exercises
Complete the sentences with preposition+ whom or preposition+ which.
Wind power is an ancient source of energy ________we may return in the near future.
Gun control is a subject _____________ Americans have argued for a long time.
He was educated at a local grammar school, _____________ he went on to Cambridge.
There are species living in the depths of the oceans __________ we still know little.
5. Today’s English learners have a wide choice of dictionaries ____________ to choose.
to which
about which
after which
of which
from which
6. A good advertisement often uses words _________ people attach positive meanings．
7. The position, however, _________ you are applying, is not quite a well-paid one.
8. In the end, it was Becky _________ he turned for a gentle word and a smile.
9. American women usually identify their best friend as someone ____________ they can talk frequently.
10.In our class there are 46 students, ________ half wear glasses.
for which
to whom
with whom
of whom
to which
Knowledge makes humble, ignorance makes proud.
博学使人谦逊，无知使人骄傲。
Nature never deceives us, it’s always us who deceive ourselves.
大自然从不会欺骗我们，欺骗我们的常常是我们自己。