Lesson 30 Science Affects Us课件配套优秀教案设计

九年级英语第五单元Lesson30教学设计

Step 1.Greetings. 设计意图：让学生做好上课的准备。

Step 2. Think about it. 1. Have you ever done any interesting experiments? Can you describe one of them? 2. What would life be like without computers or mobile phones? 设计意图：与学生进行一个简短的对话，进入本课主题。

Step 3. Show students the new words in this lesson. 设计意图：通过展示生词让学生为学习课文做好准备。

Step 4. Read the lesson and fill in the blanks. Science affects people’s (1) lives. Without the scientific developments of recent years, our lives would be very different. Can you imagine life without computers or (2) ? Scientific (3) are making our lives better and better. DNA is really one of the most amazing things on the earth. Many people think it will (4) the world. 设计意图：让学生带着任务读课文。

Step 5. Read the lesson again and finish the following questions. 1. Wang Mei didn’t enjoy learning about DNA. ( ) 2. Who did an experiment in science class this week? _______________________________. 3. Does Wang Mei think the experiment they did sounds interesting? _______________________________________________. 4. The air pressure _____________________________ is higher than that of the water pushing down from inside the jar. 5. I always wonder what life would be like without computers or mobile phones .

Step 6. Language Points 1. suggest v. 建议，提议

1) suggest sth. to sb. 向某人建议某事

2) suggest doing sth. 建议做某事

3) suggest that …建议…

4) suggestion n. 建议

2. better and better 这一句型的结构是：比较级+and+比较级

意思是“越来越…”。

例如：张家口变得越来越美丽了。

Zhang Jiakou is getting more and more beautiful. 3. lie 与

lay 1) lay (下蛋) --- laid --- laid --- laying

2) lie (说谎) --- lied --- lied --- lying 3) lie (平躺) --- lay --- lain --- lying 4) The hens _____ (lay) eggs every day. 5) Have you ever ______ (lie) to your parents? 4. careful adj. 小心的;细心的

▶Be careful! Come down. 小心！下来。

(1) ____ ____ ____ (小心)the glass. Don’t break it.

(2) ____ ____!(小心) There is a car coming here. (3)Tom is a c ____ student. He often makes mistakes in the exam. 设计意图：通过教师讲解让学生对重点知识更加熟悉。

Step 7. Do some exercises. 一、用所给词的适当形式填空。

1. The man is ____________ (bad) hurt. 2. Don’t be ____________ (scary). You will be OK.

3. —Are you hurt? —No, I’m not ____________ (injure).

二、同义句转换。

1. He didn’t agree to go there with us.

He __________________ there with us. 2. Why don’t you go swimming with me?

Why _____________ swimming with me? 3. Grandma takes care of my sister every day. Grandma ____________ my sister every day. 4. You don’t have to go home today.

You _______________ home today. 设计意图：通过练习让学生巩固本课的重点知识。