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（必修）英语5二年级英语《Theme B Society and Nature Our Planet Unit 4 Living Planet Reading Our Earth》精品课教案
3.太阳系 4.猛烈的
5爆炸 6固体
7及时 8表面
9有害的 10发展
11伸展 12出席
13阻止 14依靠 Make summary about the text and recite the new words in this unit 回忆课文所学主题及重点单词，可以简单表达关于天文学的观点 Step2 Discovering useful words and expressions
(8min)
Open the book and read the text. At first let students finish the exercise on page 28 .Then check the answer with the whole class.
This part is consolidation of the words learnt in this unit. Ask the students to do the exercises individually. 培养学生的能力，引出本节课内容。 Step3
Key words
(30min) Take out the exercise book and look at the part three 高频单词
read the content and make a summary about the words
choose someone to introduce the new words
find another students to add up
teacher together with students summarize the words
do the exercise by themselves
check the answer
单词备注
system?n.[c]?系统 ;制度；方法???
systematic?adj?有系统的;有条理的?
[典例]??
1).The?solar?system?includes?the?
sun?and its?eight?planets.
太阳系包括太阳和它的八颗行星。?
2).Alcohol?is?bad?for?your?system.?喝酒对身体有害。?