section a
学习目标:1. 谈论森林和水资源的重要性,培养学生的环保意识。
2. 继续学习不定代词的用法。
学习重点:不定代词的用法。
学习过程:一、自主学习。
a.听说准备。
1. 同学们要学会拼读和识记section a单词。
2. 听1a录音,勾画出难读的单词或句子。注意模仿语音语调。
b自学内容。
1在文中找到并划出下面的短语。
1.刮大风2.许多、大量。
3.走在街上4.刚才。
5.砍伐太多的树木6.造成沙尘暴。
7.结果8.大量富饶的土地。
9.变成沙漠10.阻止大风刮走泥土。
11.阻止流水冲走泥土12.对人类有害。
13.绿色长城14.灭绝、消失。
15.形成。
二、要点讲评。
a result, a lot of rich land has changed into desert.
译。点拨:change …into…(把…变成…)=turn… into…
练习:1)水变成蒸汽。water has changed into steam.
2)could you change this article into english. 译。
can also stop the wind from blowing the earth away.
they can also prevent the water from washing the earth away.
译。点拨:stop sb.
/sth. (from) doing sth. =prevent sb.
/sth. (from) doing sth. -阻止…做某事 (from可以省略)
同义词组 keep sb./sth. from doing sth. -阻止…做某事(from不能省略)
练习:we should stop/prevent humans fromdestroy) the environment.
down trees is harmful to human beings, animals and plants.
译。注意:cutting down trees是动名词词短语在句子中作主语,谓语用单数。
is bad for our health.
we h**e built “the great green wall”, we still need to do something to protect the environment. 译。
点拨:although 是连词,有“虽然,尽管”和“不过,然而”两层意思,引导让步状语从句,可以和though互换,although 较正式,though更为口语化,使用更普遍些。
注意:although 引导的从句不能与but, however同时连用,但常与yet, still 连用。
练习:虽然他老了,但是他仍然继续努力工作。although he was old, he still worked hard.
常见的不定代词用法:
somebody, someone, something, somewhere一般情况下用于肯定句。
anybody, anyone, anything, anywhere一般情况下用于否定句和疑问句。
none, nobody, nothing, nowhere表否定含义。
everybody, everyone, everything, everywhere可用于各种句式。
三、达标测评
a)用someone, something, anything, somewhere, anywhere 填空。
1. lily, would you liketo drink?
2. cindy is very busy now. she needs __to help her.
3. is therewrong with your computer?
4. jim looked for his pencil-boxbut he didn’t find it.
5. i stayed at home last week. i didn’t go
b) ) must plant more trees after we __every year.
a. cut off themb. cut them off
c. cut down themd. cut them down
) cleaners must keep the street __
a. from getting dirty b. to dirty
c. to get dirtyd. getting dirty
) driver was badly hurt __of the traffic accident.
a. at a resultb. in the result c. with the resultd. as a result
4.不要到处扔垃圾。
don’t throw the rubbishand
5.森林有利于防止水土流失。
forests help to keep waterthe earth away.
6.我们应该尽一切努力保护环境。
we should doto protect the environment.
7.大量良田变成荒漠。
a lot of rich land hasinto desert.
unit 2 topic 2 section b
学习目标:1.学习不定代词和不定副词的用法。
2.进一步了解有关环境污染的一些情况,提高环保意识。
学习重点:不定代词和不定副词的用法。
学习过程:一。 自主学习。
1.在文中找到并划出下面的短语。
3.(作为)结果,因此4.一些有用的措施。
5.(我们中)没有人6.到处丢垃圾。
7.当众吐痰8.踩踏草坪。
9.采摘花朵10.关爱野生动物。
11.多种树12.发出很大的噪音。
13.最糟糕的是15.遵守规章制度16.对…来说很难17.一开始。
18.尽他们最大努力去做某事。
2. 阅读1a,完成下列练习。
1)请同学们先阅读书上p121的不定代词的用法,(不定代词:凡不是用来指明代替任何特定名词的代词叫做不定代词。不定代词代替名词或形容词。在句中可用作主语,宾语,表语和定语。
不定代词包括: all , both, every, each, either, neither, more, little, few, much, many, another, other, some, any , one, no 以及some, something, anything, everything, somebody, someone, anybody, anyone, nothing , nobody, no one, none, everybody, everyone.等。
二、要点讲评。
1 .it says that china has become the world’s largest producer and user of coal.
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