《英语》（九年级上册）
Unit 5 Art world
Grammar
I. Teaching aims and learning objectives
By the end of the lesson, students should be able to:
1. tell the difference between “because” and “since/as”;
2. use “because” and “since/as” properly according to the linguistic context;
3. learn to be a good listener and respond to the teacher’s instructions actively.
II. Teaching contents
1. New words and phrases: highly, breath, last, out of breath
2. New structure: because-clauses and since/as-clauses
III. Focus of the lesson and predicted area of difficulty
1. To tell the difference between “because” and “since/as”;
2. To use “because” and “since/as” properly according to the linguistic context.
IV. Teaching procedures
Step 1 Lead-in
T: Boys and girls, do you like art?
What words/phrases/sentences come to your mind when you think of the word “art”?
Do you like art festivals? And why?
What words/phrases/sentences come to your mind when you think of “art festival”?
【设计意图：通过提问激发学生原有的学习知识，表达自己对art的认识、理解、喜爱或者自己的经历，导入艺术节话题。】
Step 2 Presentation
T: Each art festival has its own theme. Now Beijing Sunshine Middle School is going to hold an art festival. Look! Here is their invitation letter. Would you like to take part in it?
T: Let’s read the letter.
1. Read the mini-dictionary
2 Read the letter paragraph by paragraph
【设计意图：通过邀请函呈现本节课的生词和短语，以及接下来的四个任务，在语境中学习生词简单而又轻松。】
Task 1 Choose one piece of music for the opening ceremony.
T: Sunshine Middle School wants to choose a piece of music for the opening ceremony.
Which music is more suitable, Tan Dun’s or Michael Jackson’s? Let’s listen.
T: Which is more suitable? Why?
S: I think … is more suitable because … (询问2—3个同学)
T: I think Michael’s is more suitable because it can make the opening ceremony more lively.
That is, because Michael’s can make the opening ceremony more lively, it is more suitable.
We never use the conjunction so in sentences with because.
【设计意图：对比两种音乐，选择一首作为艺术节开幕式的主题曲，引出because的用法。音乐欣赏能帮助学生感受艺术的美，激发他们的学习热情。】
Task 2 Interview Mr. Tan Dun, a famous composer.
T: Sunshine Middle School has also invited Mr. Tan Dun. If you have a chance to interview him, what questions will you ask?
S: … (询问3—4个同学)
T: Daniel also has several questions about Tan Dun. Listen to a passage and help Daniel find out the answers.
T: Here we find we use “why” to ask for reasons and we use “because” to give the reasons.
【设计意图：通过采访名人的形式，让学生提问，引导他们活用because从句；利用PPT圈画的功能，强调why/because的问答形式。】
Work out the rules：
(1) We use why to ask for reasons and we use because to give the reasons.
(2) Its tone is strong. (strong/weak)
(3) We never use the conjunction so in sentences with because.
Task 3 Show our talents at the art festival.
T: What talent do you have? What are you good at? (Play the piano, play the violin, play the drum, play the flute, sing, dance, painting, talk show …)
S: …
T: Since/As you …, you can … (询问2—3个学生)
T: Make up a dialogue with your partner to discuss what talent you will show.
Use the dialogue below as a model.
S1: The art festival is coming. But I don’t know what talent to show.
S2: Me too. What art form do you like?
S1: I like music and I am good at singing.
S2: Since/As you are good at singing, why not sing a song at the art festival?
S1: Good idea. What about you?
S2: Ballet is my favourite.
S1: Since/As you like ballet, you can dance at the art festival.
S2: That sounds good.
T: I’m looking forward to your wonderful talent shows.
From the dialogue, we can judge we use since/as to give a known reason.
【设计意图：紧扣艺术节的情境，通过讨论学生的才能，引出since/as。在学生对话时，可鼓励他们适当进行表演，活跃课堂气氛。】
Task 4 Help Amy make sentences with since or as.
T: The students of Sunshine Middle School are busy preparing for the festival. What are they doing? Let’s help Amy make sentences with since or as to know about them.
(Work in pairs——Check out——Read these sentences aloud.)
【设计意图：通过帮助Amy完成句子来操练语言知识；大声朗读句子体会since/as的用法，为接下来语言的输出做好准备。】
Work out the rules：
(1) We use since/as to give a known reason.
(2) In most cases, since and so are used in the same way and have no difference in meaning.
(3) Their tone is weaker than because. (weaker/stronger)
Step 3 Practice
Task 1 Fill in the blanks.
T: Near the end of the art festival, Mr. Tan Dun played his amazing piece of music Water.
Let’s enjoy it.
Tan Dun loves the sounds of the rushing water and the blowing wind ___________, to him, the best music comes from nature.
__________ he likes the sounds of nature, Tan uses them a lot in his music. His amazing piece of music Water does not use any musical instruments.
【设计意图：围绕视频完成练习，巩固已学知识。】
Task 2 Finish Part B2 on page 72.
T: Sandy wrote a diary. Let’s help her complete the diary with because or since/as.
Work alone ——discuss with partner——correct the answers——raise questions.
【设计意图：通过Sandy的日记，在语境中辨别because和since/as的不同。鼓励学生先独立思考，接着同伴互助，然后呈现答案，最后提出问题并解决。】
Step 4 Practice
T: We’ve learnt a lot about Beijing Sunshine Middle School’s art festival. Now write a diary about this art festival. Try to use because, since or as when you give reasons.
【设计意图：通过写作练习，学生可再次在语境中运用because和since/as。在随后的交流环节，又能与同学分享自己的经历。】
T: Life is short, but art is long. Let’s light our life with art.
Listen to the song Heal the World and sing it together.
V. Homework
1. Revise your diary about the art festival. Try to write more sentences with because or since/as.
2. Finish the related exercises.
