1、本网站免费注册后即可以下载，点击开通VIP会员可无限免费下载！
2、资料一般为word或PPT文档。建议使用IE9以上浏览器或360、谷歌、火狐浏览器浏览本站。
3、有任何下载问题，请联系微信客服。
扫描下方二维码，添加微信客服
北师大2003课标版《Lesson 3 Clean Machines》最新教案优质课下载
Teaching procedures:
Step1. warm up and lead in
Share some information about Beijing Motor show with students and watch a video together. Ask students what is the video talking about.
Step2. Discussion and pre-reading
Why do people invent solar cars?
Read the text in 5 minutes and do the exercise 3. ( True or False )instruction and key
Step3 Read to learn
Read the text with your partner and find out all the questions about solar cars.
What is a solar car?
Solar cars are cars that use __________.
They do not use ____, ___, ___________.
Why are people interested in solar cars?
People have been _____ about pollution caused by ________________ for a long time now. Solar cars are ____________, so there is a lot of interest in them.
Step4 Review the Grammar Present Perfect and Present Perfect Continuous
a. Examples: Scientists have been making solar cars for over twenty years.
They have made solar cars that go up to 80 k.p.h. !
b. The definitions of 2 tenses and the differences between them.
We use the Present Perfect to talk about a finished activity (achievement) and the Present Perfect Continuous to talk about an unfinished activity.
We use the Present Perfect to focus on a result of an activity, especially when we give a number or quantity. We use the Present Perfect Continuous to focus on the activity itself, especially to explain visible consequences of it.
c. Grammar practices. (exercise 7)
Homework