（新教材）人教版(2019) 高一英语 必修第二册Unit1Period 4 Discovering Useful language课件年.pptx

1、Discovering Useful Language Learning Aims By the end of the period, you will be able to 1. get more familiar with the usages of relative pronouns and relative adverbs. 2. apply relative clauses to describing people or things in greater detail in oral communication. 3. polish their language using rel

2、ative clauses to improve their writing ability. Step I Lead in: Play a Game 1.Who is my best friend? 2.Who borrowed a book from me yesterday? Your physics teacher is a person who wears a moustache. The head noun/先行词 关系词 /the relative words 关系词的作用：关系词的作用： 1 1、指代作用：指代先行词；、指代作用：指代先行词； 2 2、连接作用：连接主从句；、连

3、接作用：连接主从句； 3 3、成分作用：在从句中充当成分、成分作用：在从句中充当成分 Step II Observe and analyze Task 1 Analyze and conclude the usage of the relative pronouns. 1. There were deep cracks which /that appeared in the well walls. 2. 1)The team ( that/which )Lang Ping had built was falling apart. 2)Written Chinese has also becom

4、e an important means by which Chinas present is connected with its past. 3. 1)The player who/that was known as “Air Jordan” changed basketball with his graceful moves and jumps. 2) We kept seats for those who might arrive late. 3) This is the best film that Ive ever seen. 4.1) She is my friend (whom

5、/who/that ) I always turn to for help. 2) He is the only person with whom I want to share the story. 5. 1) Workers built shelters for survivors whose homes had been destroyed. 2) The room whose window faces south is mine. Step II Observe and analyze 关系代词 先行词 在定语从句中充当的成分 人 物 主语 宾语 定语 that which who w

6、hom whose Step II Observe and analyze Task2 Analyze and conclude the usage of the relative adverbs. 1. There comes a time when (in which)the old must give way to the new. 2. Temples and other cultural sites were put back together again in a place where(in which) they were safe from the water. 3. The

7、re are many reasons why (for which) the cultural relics should be protected. 关关系副词系副词 先行词先行词 在定语从句中充当的成分在定语从句中充当的成分 可以转化成可以转化成 when where why 时间名词时间名词 时时间间状语状语 i in/on/atwhichn/on/atwhich 地点地点名名词词 地点状语地点状语 i in/on/atwhichn/on/atwhich reasonreason 原因状语原因状语 f for whichor which Think: How to choose a p

8、roper relative pronoun or relative adverb? Step1 找出先行词（人，物，所属关系等） Step2 分析从句基本成分 Step3 选择合适的关系词 Step II Observe and analyze Task3 Complete the passage using proper relative pronouns and adverbs. There was a time 1._people near the Nile suffered a lot, so the government wanted to build a new dam to s

9、olve the problem. However, water from the dam would likely destroy some cultural relics. That was the reason 2._the proposal received protests. After listening to those3._were worried about the problem, the government turned to the UN for help. The project also brought together governments and envir

10、onmentalists 4._contributions (贡献)made a great difference. With their help, temples and other cultural relics 5._were taken down were moved .Then they were put together again in a place 6._ they were safe from the water. The project was considered a great success 7._ people were proud of. When faced

11、 with difficulties, we can turn to others with 8._ miracles(奇迹）can be created. when why who whose which/that where which/that whom Step III Practice Task 1 Rewrite the sentences using relative clauses. 1. The river was polluted seriously. It runs through the centre of the city. _ 2. I have been to t

12、he city twice. You just visited the city. _ 3. Double 12 Day is coming. That day my mother will spend a lot of money. _ 4. I will visit Mount Tai. At the top of it I can enjoy the beautiful sunrise. _ The river which/that runs through the centre of the city was polluted seriously. I have been to the

13、 city twice which/that you just visited. Double 12 Day is coming when my mother will spend a lot of money. I will visit Mount Tai at the top of which/where I can enjoy the beautiful sunrise. Step III Practice Task 2 Divide each of the following compound sentences into simple ones . Example: There co

14、mes a time when the old must give way to the new. There comes a time. During the time the old must give way to the new. Water from the dam would likely damage a number of temples and destroy cultural relics that were an important part of Egypts cultural heritage. Water from the dam would likely dama

15、ge a number of temples and destroy cultural relics. The cultural relics were an important part of Egypts cultural heritage. Step III Practice After listening to the scientists who had studied the problem, and citizens who lived near the dam, the government turned to the United Nations for help in 19

16、59. Temples and other cultural sites were taken down piece by piece, and then moved and put back together again in a place where they were safe from the water. After listening to the scientists and citizens, the government turned to the United Nations for help in 1959. The scientists had studied the

17、 problem. The citizens lived near the dam. Temples and other cultural sites were taken down piece by piece, and then moved and put back together again in a place. In this place they were safe from the water. Step III Practice Perhaps the best example is shown by UNESCO, which runs a programme that p

18、revents world cultural heritage sites around the world from disappearing. Perhaps the best example is shown by UNESCO. UNESCO runs a programme. The programme prevents world cultural heritage sites around the world from disappearing. Step III Practice Task 3 Observe the following sentences, think abo

19、ut their functions, and then learn to give definitions. 1. A library is a place from/in which/where you can borrow books. 2. A good friend is someone to whom you can tell your problems. 3. A vacation is a time during which/when you dont work. 4. A football coach is someone from whom football players

20、 receive training. /A football coach is someone who trains football players. The above sentences are _by using the structure “A is B + a relative clause”. “B” is always a upper-sense word of “A”, that is, B always includes A or A is always one member of B. giving definitions/answering a question “wh

21、at is it” Step III Practice Imitate the above sentences and give your own definitions. A giraffe is _. A dentist is _. an animal that has a long neck someone who looks after your teeth Step IV Language use Task 1 Use the relative clauses to describe the pictures. The Great Wall is a long wall that w

22、as built to defend the country thousands of years ago, which winds its way into the distance under the sun at sunset. Mount Tai is a famous mountain that/which is high enough to reach the sky and attracts thousands of visitors. Step III Practice Step IV Language use The kite which has a shape of an

23、eagle is a gift that my grandpa bought for me from Weifang. The girl who is looking up with her palms put together against her face is my little sister who is only 5 years old. Step IV Language use Task 2 Group work: Translate the Chinese poem into the English one using the relative clauses. 我的梦我的梦

24、我想成为长城边的一棵树，回 顾历史，珍惜现在； 我想成为泰山上歌唱的小鸟， 在那儿，欣赏日出，展翅高飞； 有一天，我想化为风，带着漂 亮的风筝远行； 有一天, 我想变成一把神奇的 古琴， 为我们居住的世界带来最动听 的音乐！ My Dream I want to be a tree_, looking back on the history and cherishing now I want to be a bird singing in Mout Tai _ I want to be wind one day _ I want to be an an amazing Guqin, bring

25、ing touching music to the world _ which stands by the Great Wall where I can enjoy the sunrise and fly high which take a beautiful kite far away where we live My Dream I want to be a tree that/which stands by the Great wall, looking back on the history and cherishing now; I want to be a bird singing

26、 in Mout Tai where(in which) I can enjoy the sunrise and fly high; I want to be wind one day when I can take the kites from Weifang far away; I want to be an amzaing Zhucheng Guqin, bring touching music to the world(that/which) we live in! Homework Finish the Activity 2 on page 6 and Activity 1, 2,3 and 4 on page62-63.