九年级上册Grammar教学ppt课件

设计说明

首先复习Tan Dun and his music，然后用问答的形式导入新课，引出连词because 和其引导的原因状语从句，然后学习连词because, since和as以及它们引导的原因状语从句。通过一系列的讲解和练习，让学生掌握连词的用法，学会用连词来构成语句，表达自己的想法。

教学目标

通过本课时的教学，让学生达成以下目标：

1.知识目标：

（1）掌握单词和短语: highly, breath, last, out of breath;

（2）掌握连词because, since和as引导的原因状语从句。

2.能力目标：

（1）通过学习,掌握连词because, since和as引导的原因状语从句；

（2）学会用连词来表达思想,培养写作能力。

3.情感目标：

通过学习,培养学生对艺术的兴趣,陶冶艺术情操。

重点难点

重点:学习生词和短语以及连词because, since和as的用法。

难点:because, since和as引导的原因状语从句。

教学准备

PPT 课件；相关图片。

授课时数

1课时

教学过程

Step 1  Lead-in

1. Talk about Tan Dun and his music.

2. Show a question and ask them to answer.

Question: Why did Tan Dun know very well about the sound of flowing water?

Answer: Because he grew up near the Liuyang River.

3. Lead in today’s grammar.

Step 2  Grammar A  

1. Show a question and ask them to answer it by using because.

Why does Tan Dun like the sounds of the rushing water and the blowing wind?

Because he thinks the best music comes from nature.

2. Give them other examples to show why and because.

A: Why do you love Michael Jackson?

B: Because he was the King of Pop.

3. Show them the grammar rules and give them some explanation.

because表示直接原因，其语气最强。常用来回答why引起的疑问句。

I stayed at home because it rained. 因为下雨我待在家里。

Because Lingling was ill, she didn’t come to school.

玲玲因为生病了，没有来上学。

— Why is she absent? 她为什么缺席？

— Because she is sick. 因为她病了。

4. Practise why and because.

A: Why are you wearing a raincoat?

B: Because it’s going to rain.

I am wearing a raincoat because it’s going to rain.

It is going to rain, so I am wearing a raincoat.

Exercise: ______ her daughter hadn’t come back, _____ she looked worried.

   A. Because; /     B. Because; so   C. /; so            D. So; /

Stress the rule: We never use the conjunction so in sentences with because.

Answer: AC

5. Do the exercises on Page 70. Questions about Tan Dun.

Answers: 1 Because he is a world-famous composer.

2 Because he thinks the best music comes from nature.

3 Because he has successfully brought Chinese and Western music together.

4 Because he has created a new type of music—music without boundaries.

Step 3  Grammar B

1. Talk about Tan Dun and his music. Show the sentences.

Since he had no musical instruments then, he made music with common objects like stones and paper.

As he likes the sounds of nature, Tan uses them a lot in his music.

2. Present the sentences with since and as. Tell the students that since and as are used to give reasons for something. Usually the reasons are already known. Their tone is weaker than because.

3. Give them some explanation.

（1）since表示显然的或已为人知的理由，常译为“因为；既然”，语气比because稍弱，通常置于句首。

  Since he asks you, you’ll tell him why. 既然他问你，你就告诉他为什么吧。

  Since everyone is here, let’s start. 既然大家都到齐了，咱们就开始吧。

  Since I understood very little Japanese, I couldn’t follow the conversation. 因为我日语懂得不多，所以我听不懂谈话。

（2）as表示的“原因”是双方已知的事实或显而易见的原因，或者理由不是很重要，含义与since相同，但语气更弱，没有since正式，常译为“因为，由于”。

  We all like her as she is kind. 我们都喜欢她，因为她善良。

  As I had a cold, I was absent from school. 因为我感冒了，所以我没去上学。

  As Xiaoming was not ready, we went without him.

由于小明没有准备好，所以我们没带他去。

4. Do B1. Form sentences with since and as.

  Answers: 2 Since/As Kitty will dance at the song and dance show, she has to practise hard these days.

  3 Sandy will design the posters for the art festival since/as she can draw very

well.

  4 Since/As some students love painting and taking photos, there will be a

students’ art show.

  5 Since/As the art festival is open to all students and parents, everybody is

welcome.

5. Do B2. Fill in the blanks.

  Answers: (1) because  (2) Since/As  (3) Since/As  (4) since/as

  (5) because  (6) Since/As  (7) because

Step 4  Language points

1. Why do people think highly of Tan’s music? 人们为什么高度评价谭的音乐？

  think highly of 意为“高度赞扬，高度评价”，相当于speak highly of。

  The teacher thinks highly of the girl because she is clever and hard-working.

  老师高度赞扬这个女孩，因为她聪明、刻苦。

  People from the art community think highly of Wu Wei’s sculptures for Sunshine Town Square. 来自艺术界的人高度赞扬吴伟为阳光镇广场所做的雕塑。

2. “I’m late（5）because there was too much traffic,” she said, out of breath. 她上气不接下气地说,“（5）因为太多的车辆所以我来晚了。”

 out of breath 上气不接下气

 After running, the students were out of breath. 跑步之后，学生们上气不接下气。

【拓展】类似短语：

out of danger 脱离危险         out of control 失去控制

out of date 过期的             out of order 次序颠倒

out of work 失业              out of sight 看不见

Step 5  Homework

1. Revise Grammar and finish the exercises in the workbook.

2. Preview Integrated skills. Preview the words and read through the notes.

当堂达标

I. 根据汉语提示完成句子。  

1. Most people _______________（高度评价）Tan’s music.

2. Kitty will dance _______________（在歌舞表演中）.

3. Sandy will ________________（设计海报）for the art festival.

4. Tom ran into the classroom _______________（上气不接下气）.

5. The opera _______________（持续了两个半小时）.

II. 单项选择。

1.The two companies decided to work together _____ they had common interest.

A. because    B. unless  C. but     D. or

2. ______ it is often cold in the mountains, you need to wear warm clothes.

A. Though   B. Unless   C. As     D. Until 

3.—The local food may taste a bit strange.

—Well, ______ we are here, why not give it a try?

A. though   B. unless  C. since  D. because

答案: I.1. think highly of  2. at the song and dance show  3. design a poster

4. out of breath  5. lasted two and a half hours

II. 1. A  2. C  3. C

板书设计

教学反思