Teaching Ais(教学目标):
1.能听、说、读、写本课的核心词汇：earth, frest , cean ,
land, part, rubbish , s an
2.能熟练掌握核心句型：
We shuld stp cutting dwn s an trees.
3.通过学习，增强环保意识，提出环保建议。
Teaching Iprtances and Difficulties (教学重难点)：
1.能在语境中运用本课的核心词汇和句型。
2.学生能运用核心句型交流看法。
Teaching Tls(教学用具)：
录音机、自制等
Teaching Prcedures(教学过程)：
StepⅠ.War up and revisin（热身与复习）
1.Sing a sng.
2. D se waring-up exercises.
Step Ⅱ.Presentatin and practice（呈现新语言知识和练习）
1. Lead in.
T: L! What is it?
Ss: It’s earth.
T: What’s n the Earth? What d u see?
Ss: I see frest. / I see land./ I see ceans.
T: es. Tda we are ging t learn re abut the Earth.
2. As and answer.
T: What d u nw abut the Earth?
Ss: We get wd fr trees. We get fruit fr trees.
T: What d we use wd fr?
S1: The Earth is rund.
S2: There are anials, peple and plants.
3. Learn t sa and use the wrds.
The students sa and spell the wrds.
4. Watch the cartn and tal abut the Earth.
T: What are the green parts?
Ss: The are frests.
T: Hw abut the brwn parts?
Ss: It’s land.
T: What’s wrng with the Earth nw? Read this dialgue again and tr t find the answer.
S1: The Earth was clean, but nw se parts are dirt.
T: What shuld we d t help the Earth?
Ss: We shuld eep the Earth clean.
5. The pupils read the text carefull. And then tr t d se exercises.
Step Ⅳnslidatin（拓展延伸）
Act ut the dialgues in grups.