外研版（2019）必修 第一册Unit 5 Into the Wild Using language 定语从句 课件（共20张PPT）

(共20张PPT)
Unit 5 Into the wild
Using language 定语从句
语法点拨
定语从句（2）——关系副词
Ⅰ.观察感悟
感知下列句子,判断加黑部分在从句中作何成分。
1. These two pieces of information—the time of day and the point where the sun
is in the sky—allow the butterfly to determine the way to go.__________
地点状语
2. Eventually, it manages to reach the places where it will spend the
winter.__________
地点状语
3. The solution to the mystery of the monarch's amazing ability comes at a time
when it is in serious trouble.__________
时间状语
4. Sadly, human activity is the main reason why the number of monarch
butterflies is falling. __________
原因状语
5. In many of the places where the butterfly can be found, people are destroying
the natural environment. __________
地点状语
Ⅱ.要点精析
当引导定语从句的关系词在从句中作时间、地点、原因状语时，应使用关系副词when、where、why。
1.when在定语从句中作时间状语，其先行词往往是表示时间的名词，如time、day、week、year等。
I will always remember the day when I first came to the school.
我会永远记得我第一次来到这个学校的那一天。
温馨提示 当先行词是表示时间的名词时，定语从句既可用when引导，也可以用that 或which引导，关键看关系词在从句中作何种成分。若关系词在定语从句中作状语，则用when引导；若关系词在定语从句中作主语或宾语，则用that 或which引导。
I will always remember the day which/that I spent in the village.我会永远记得我在村子里度过的那一天。
2.where在定语从句中作地点状语，其先行词往往是表示地点的名词，如place、factory、house、village等，或表示抽象地点的名词，如position、point、case、stage、situation、atmosphere等。
This is the factory where my brother worked last year.这就是我哥哥去年工作过的那家工厂。
Can you imagine a situation where you can use the word 你能想象一下使用这个词的情景吗？
温馨提示 当先行词是表示地点的名词时，如果关系词在定语从句中作主语或宾语，则用 that 或which 引导定语从句。
This is the factory which/that my brother visited last year.这就是我哥哥去年参观过的那家工厂。
3.why在定语从句中作原因状语，其先行词是表示原因的名词 reason。
I don't believe the reason why he was late.
我不相信他迟到的原因。
温馨提示 若先行词为reason，并且关系词在定语从句中不作状语，而是充当主语或宾语，则用 that 或 which 引导定语从句。
I don't believe the reason that/which he explained at the meeting. 我不相信他在会上解释的那个原因。
Ⅲ.实战演练
用适当的关系副词或关系代词填空
1. The reason _____ he succeeded in the exam was that he studied very hard.
why
2. This is the house __________ was built by my grandfather forty years ago.
that/which
3. I won't listen to the reason __________ you have given us.
that/which
4. The library _______ we often read books and study will not open for the next
two weeks.
where
5. Students should take part in community activities _______ they can gain
experience for growth.
where
6. Do you still remember the days ______ we chatted with each other all night
when
7. Do you still remember the days __________ we spent together on the farm
that/which
8. Finally, we got to a factory, _______many mobile phones of high quality were
produced.
where
9. It's helpful to put children in a situation _______ they can see themselves
differently.
where
10. Creating an atmosphere _______ employees feel part of a team is a big
challenge.
where
用本单元语法知识完成句子
1. 上周我们参观了斯里兰卡（Sri Lanka）的一个国家公园，那里是大象和其他濒
临灭绝的动物的家园。
_______________________________________________________________________
___________________________
Last week we visited a national park in Sri Lanka, which is home to elephants and other endangered animals.
2. 我看到了很多我在书里读到过的野生动物。
____________________________________________
I saw much wildlife which I had read in books.
3. 我最喜欢的是那些巨大的蝴蝶，它们的翅膀是绿色和蓝色的。
________________________________________________________________
My favorite was the giant butterflies whose wings were green and blue.
4. 我唯一感到担心的时刻就是当我们进入了一个有蛇生活的森林的时候。
_______________________________________________________________________
_____
The only moment I felt worried was when we went into a forest where snakes live.
5. 那时我明白了我们被告知要穿结实的鞋子的原因。
___________________________________________________________________
Then I understood the reason why we had been told to wear strong shoes.
将上面的句子连成一篇文章
要求语言流畅、用词准确、逻辑严密。
_______________________________________________________________________
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Last week we visited a national park in Sri Lanka, which is home to elephants and other endangered animals. I saw much wildlife which I had read in books. My favorite was the giant butterflies whose wings were green and blue. The only moment I felt worried was when we went into a forest where snakes live. Then I understood the reason why we had been told to wear strong shoes.
词句精讲
1 accommodation n.住处，工作场所；停留处；膳宿
情境佳句
①Hotel accommodation is included in the price of your holiday.
你度假的价钱包括旅馆住宿。
②The hotel can accommodate up to 500 guests.
这家旅馆可供500位旅客住宿。
③I have offered to paint the house in exchange for a week's accommodation.
我已提出给房子刷漆，以换取一个星期的住宿。
归纳拓展
（1）provide accommodations for为……提供膳宿
（2）accommodate v.为……提供住宿/空间；适应；（房间、建筑物等）容纳
accommodate/adapt （oneself） to（使……）适应……
学以致用
［单句填空］
① After the earthquake, the first thing the local government did was to
provide_______________（accommodate） for the homeless people.
accommodations
② Five hundred people in all will come here. Is the hotel big enough
_______________（accommodate） them
to accommodate
③ Wherever he goes, he is able to quickly accommodate ___ the new
environment.
to
2 add...to... 把……加到……
情境佳句
①English idioms are a way of adding colour to the language. （教材原句）
英语习语是为语言增添色彩的一种方式。
②Her mother told her to add some salt to the soup to make it tasty.
她妈妈告诉她在汤里加些盐，让它更美味。
③The tall trees along the street add to the beauty of the city.
沿街的高大树木增添了这座城市的美丽。
归纳拓展
（1）add to增加，增添
add up把……加起来
add up to 合计达；结果是
（2）in addition （to）除……以外（还）
学以致用
［单句填空/完成句子］
① Keeping the pet dog in my family adds great joy ___ our daily life.
to
② You'd better add ____ your scores and see if you have passed the exam.
up
③ The sudden heavy rain added ___ the difficulty for us to arrive home on time.
to
④ 我们掏空了口袋，所有的钱加起来是3美元。
We emptied our pockets, and all our money ____________ ＄3.
added up to
Thanks