仁爱英语九年级上Unit2Topic2Section_A

1、 Section A 牛牛文库文档分享学习目标：1、熟记新单词，学会运用新短语； 2、学习不定代词和不定副词。情感目标：了解沙尘暴的形成及其危害，认识树木的重要性，提高环保意识。Review: Read the new words and review the pollution around 牛牛文库文档分享 牛牛文库文档分享 牛牛文库文档分享 牛牛文库文档分享 牛牛文库文档分享 牛牛文库文档分享 牛牛文库文档分享forestLead in 牛牛文库文档分享What happened to the forest ?People have cut down too many trees. Th

2、e forest has gone. 牛牛文库文档分享Whats worse, the forest has changed into desert.n. 沙漠 v. 舍弃、遗弃 牛牛文库文档分享The wind is blowing strongly with lots of sand, we call it sandstorm.n. 沙n. 沙尘暴 牛牛文库文档分享Wash the earth awaymany trees change into desertforest gone sandstorms come into being cut down trees( 4 )( 1 )( 5

3、 )( 3 )( 6 )( 2 )思考：How does the sandstorm come into being?形成、产生 牛牛文库文档分享 Self study：（小组讨论，完成自主学习）1、Enjoy the flash35-1a.swf and choose the best answer.2、Change the word into correct forms.3、 Read the dialog, underline the phrases and translate 牛牛文库文档分享1、The boy and girls are talking about _B2 2、【词形

4、变换】变为名词：pollute _ pollute _ 变反义词：outside _ outside _ 变同义词：prevent _prevent _； though _though _； rubbish _rubbish _pollutioninsidestopalthoughlitter展示：Show me your 牛牛文库文档分享3 3、短语翻译 1. 刚才_ 2. 不能看见任何东西 _ 3. 砍伐太多的树木_ 4. 结果 _ 5.大量富饶的土地_ 6.变成_ 7 .阻止大风刮走泥土_ 8. 阻止流水冲走泥土_ 9. 对有害_ 10.人类 _just nowcant see anyt

5、hing cut down too many treesbe harmful tostop the wind from blowing the earth awaychange intoas a resultjust nowstop the water from washing the earth awayhuman 牛牛文库文档分享Trees can stop the wind from blowing the earth away. Trees can also stop the water from washing the earth away. 牛牛文库文档分享Read 1a and

6、complete trees functionsB、A lot of water can be saved by forestsA、Trees can stop the wind from blowing the earth away. C、Trees can also stop the water from washing the earth 牛牛文库文档分享Groupwork：（小组讨论，分析以下句子，并总结短语的小组讨论，分析以下句子，并总结短语的用法）用法）展示学生成果：（叫同学讲解并用投影仪展示讨论结果） 牛牛文库文档分享2、As a result, a lot of rich la

7、nd has changed into desert. 结果，许多肥沃的土地已经变成了沙漠。 点拨：a) change into（把变成） = turn into 把.(转)变成. e. g：Please change English into Chinese. 请把英语变成汉语。 练习：我们可以把冰变成水。We can _ ice _ water.1、What bad weather! 点拨：What引导的感叹句- a. What+形容词+不可数名词/可数名词复数！ （不可数名词如:news; advice; weather; water） b. What+ a/an+形容词+可数名词单数！

8、练习：1）多么繁忙的一天呀！_ 2) 多么清澈的水呀！_重点讲评What a busy day!What clean water! 牛牛文库文档分享3、Trees can stop the wind from blowing the earth away.树可以防止大风刮走泥土。 Trees can also stop the water from washing the earth away. 也可防止流水冲走泥土 点拨：stop sb./sth. (from) doing sth. = prevent sb./sth. (from) doing sth. - 阻止做某事 链接：同义词组 k

9、eep sb./sth. from doing sth. - 阻止做某事（from不能省略） 练习：大雨使我们无法外出。 The heavy rain us going out. =_ =_stopsThe heavy rain prevents us form going out.The heavy rain keeps us form going 牛牛文库文档分享 4、Cutting down trees is harmful to human beings, animals and plants. 译：_ 思考：cutting down trees是_短语在句子中作_语，谓语用_数。 练

10、习：阅读是我的爱好。 my hobby.5、不定代词和不定副词 (一) 不定代词：指人：someone/ somebody anyone/ anybody no one/ nobody everyone/everybody指/：something anything nothing everything（二）不定副词：somewhere anywhere nowhere ever动词单主Reading is砍伐树木对人类、动物和植物有害。 牛牛文库文档分享 ( )1.We should humans destroying the environment. A. keep . by B. stop

11、. to C. prevent. by D. stop. from ( )2.I have to wait for the traffic lights to green .Then I can go on walking. A. change B. changed C. change to D. changing into ( )3.The heavy rain us from finishing the work. A .protected. B. prevented C. moved D. made ( )4. The driver was badly hurt _ of the tra

12、ffic accident. A. at a result B. in the result C. with the result D .as a result ( )5. always helps others _ she is very busy. A. butB. and C. although D. because ( )6. We must plant more trees after we _ every year. A. cut off themB. cut them off C. cut down them D.cut them down自我检测Answers:1、C 2、D

13、3、D 4、D 5、B 6、D 7、C 8、D 牛牛文库文档分享Homework: 1、English workbook : Section A 2、总结不定代词和不定副词的用法。 牛牛文库文档分享 牛牛文库文档分享 牛牛文库文档分享1、The boy and girls are talking about _B2 2、【词形变换】变为名词：pollute _ pollute _ 变反义词：outside _ outside _ 变同义词：prevent _prevent _； though _though _； rubbish _rubbish _pollutioninsidestopalt

14、houghlitter展示：Show me your 牛牛文库文档分享1、The boy and girls are talking about _B2 2、【词形变换】变为名词：pollute _ pollute _ 变反义词：outside _ outside _ 变同义词：prevent _prevent _； though _though _； rubbish _rubbish _pollutioninsidestopalthoughlitter展示：Show me your 牛牛文库文档分享3、Trees can stop the wind from blowing the earth away.树可以防止大风刮走泥土。 Trees can also stop the water from washing the earth away. 也可防止流水冲走泥土 点拨：stop sb./sth. (from) doing sth. = prevent sb./sth. (from) doing sth. - 阻止做某事 链接：同义词组 keep sb./sth. from doi