九年级二单元二话题导学案

1、unit2 saving the earthtopic 2 all these problems are very serious.sectiona【学习目标】谈论森林和水资源的重要性，培养学生的环保意识。【预习案】一、 读1a，回答1b.二、 在文中找到并划出下面的短语91.刮大风 2. 制定规章制度 _3.走在路上_ 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.需要做一些保护环境的事情_15.形成 _16. 完全灭亡, 灭绝 _17. 处于的危险中 _1

2、8.尽最大努力 _ 【探究案】 在文中划出下面的句子并分析1.what bad weather! 译：_总结：what引导的感叹句- a. what+形容词+不可数名词/可数名词复数！ b. what+ a/an+形容词+可数名词单数！练习：1）多么繁忙的一天呀！ 2）多么大的雪呀！ _ 3）多么艰苦的工作呀！ _ 4）多么轻松地工作啊！ 5) 多么美丽的花呀！ _ 2.as a result, a lot of rich land has changed into desert.译：_点拨：change into（把变成）= turn into练习：1)加热能使水变成蒸汽。heat _ _

3、_ water _ steam. 2)他们正在使沙漠变成农田。they _ _ desert _ farmland. 3)could you change this article into english? 译：_3.trees can also stop the wind from blowing the earth away. 译：_ they can also prevent the water from washing the earth away. 译：_stop factories pouring waste water into rivers. 译：_点拨：stop sb./s

4、th. (from) doing sth. = prevent sb./sth. (from) doing sth. - 阻止做某事 (from可以省略)链接：同义词组 keep sb./sth. from doing sth. - 阻止做某事（from不能省略）练习：1)大雨使我们无法外出。a. _b. _ c. _ 2)昨天我因病没法去游泳。 a. _ b. _ c. _ 4.cutting down trees is harmful to human beings, animals and plants. 译：_思考：cutting down trees是_词短语在句子中作_语，谓语用_

5、数。练习：1)散步是我的爱好。 my hobby. 2)打乒乓球很有意思。 great fun. 3)阅读使人完美。 a man .5.although we have built “the great green wall”, we still need to work hard to protect the environment. 译：_点拨：although 是 词，有“虽然，尽管”和“不过，然而”两层意思，引导 状语从句，可以和 互换，although 较正式， 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, sti

6、ll 连用。练习：a.虽然他老了，但是他仍然继续努力工作。_ he_ old, he still _ working hard. b.当时我觉得她错了,不过我什么也没说。_ i _ she was wrong at that time, i _ _.【归纳】i. 汉译英1. 你能就怎样才能学好英语给我们提些建议吗？ can you _on how to learn english well?2. 我们必须为保护我们的环境做些有用的事情。 we must _ our environment.3. 我们应该关心那些处于困境中的人们。 we should _ the people _. 4. 如果人

7、人都为保护环境作出贡献，一百年后我们这个世界会是什么样子呢？ if everyone makes a contribution to protecting the environment, what _ in a hundred years?ii. 改错1. because the dress is beautiful and it fits me well, so i want to buy it. 2. neither bill nor i are good at swimming. we are fond of baseball. 3. there is interesting some

8、thing in todays newspaper. 4. would you like to have anything more?5. each of the students are busy reviewing for the final examination. iii. 按要求变化下列各句1. bill and tony both like swimming. （改为同义句） _ bill _ tony likes swimming.2. there is something wrong with my computer. （改为否定句） there _ wrong with my

9、 computer. 3. reading on the bus is bad for your eyes. （改为同义句） it is _ for your eyes _ on the bus. 4. “dont open the door!” my mother said. （改为间接引语） my mother _ me _ open the door. sectionb【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，提高环境保护意识。3.渗透法制教育中华人民共和国环境保护法，培养和提高环保意识。【预习案】一、 读1a，完成1b和1c二、 读2，用所给的

10、单词填写空格三、 在文中找到并划出下面的短语1.读这篇文章_ _ 2.世界上最大的煤炭生产国和消费国_ _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.做我们力所能及的的事情_13.发出很大的噪音_ 14.更差的是 _ 15.制定规章制度_16.遵守规章制度(2)_17.对来说很难_18.一开始 _ _19.尽他们最大努力去做某事_20.变得越来越好_ _21.违反规则_ _22.迅速消失_23完全灭亡, 灭绝_24.被惩罚_ 【探究案】在文中划出下面的句子并

11、分析1. it says that china has become the worlds largest producer and user of coal.译：_ 点拨：it says that - 书上/报纸上说(后接宾语从句), that可以省略 链接：a. _ - 据说 b. - 据报道c.its (well) known that - 众所周知 d.its believed that - 人们相信练习： a.据报道,近几年来气温已经变高了。_ _ _ _the temperature _ _ _.b.众所周知，她是一位著名的医生。 .c.人们相信吸烟导致癌症。 .d.报纸上说污染仍

12、是个严重的问题。 .2. but the government is doing something useful to protect the environment. 译：_点拨：something useful-一些有用的事(形容词后置修饰复合不定代词)练习：没什么有趣的事情 _ 一些重要的事情 没什么特殊的事情 链接：enough修饰形容词或副词时也要后置 练习：足够大_ 足够宽_3. none of us likes pollution. 译：_点拨：none - 没有一个，没有一点儿(代词)比较：none 既可指人，也可指物；no one = nobody只能指人，不能指物。 no

13、ne 后常接of构成 none of 短语, 后接 a. 不可数名词（谓语用单数）b.复数名词，代词，单数集合名词(谓语用单复数均可)no one = nobody后不接of 短语。作主语时，谓语动词用单数，可以与else连用，none不可以。注意：no one 用来回答who 提出的问句，none 用来回答how many 或how much 提出的问句。 练习：a. 我的朋友都没有去过那里。译：_ of my friends _ /_ been there . b. 以前没有人去过那儿。译：_. c. 没有其他的人知道这件事。译： _ _ _ knows about that. d. -谁

14、和他一起去的那儿？-没有人。译：- has gone with him? - _. e. 多少学生曾经去过美国？没有一个人。 译：- students have ever been to america?-_ . f. 没有人喜欢污染。译：_ of the people like pollution.=_ likes pollution.4. everyone should care for wild animals and plant more trees. 译：_ 比较：everyone和 every one everyday 和every day点拨：everyone =everybod

15、y-大家，每人(不定代词), 作主语时谓语用单数。（不能跟of短语，反意疑问句中they替换） 练习：a. 人到齐了，不是吗？ 译：_ _ here, _ _? b. 每个人都在家呆着，不是吗？ 译：_ _ at home, _ _?点拨：every one-每一个, 可以指人=everyone，也可以指物, 作主语时谓语用单数。(后跟of 短语） 相当于each of 练习：a.我们每个人都有工作的权利。_ _ us _ a right to work.b.他把每一个月饼都吃了。he ate up _ _ _ the cakes.c.我认识他们中的每个人。i know _ _ _ _.d.我

16、们班每个人都爱学英语。_ in our class _ english.点拨：care for - 照顾 同义词组 _ /_ 拓展：好好照顾- a._ b._ c._5.we should do everything we can to protect the environment. 译：_点拨：everything-每件事物，一切(不定代词), 作主语时，谓语用单数。(反意疑问句中they替换）练习：1)宴会的准备工作现在都已就绪，不是吗？_ _ _for the party, _ _?2)一切顺利，不是吗？_，_? 点拨：everything we can (do)-我们能做的一切 拓展

17、：everything he likes-_ everything you know-_练习：1)take it easy. well do everything we can to help you. 译：_ 2)为了让他高兴妈妈给她买了她喜欢的一切。her mom _ _ _ _ _make her happy.3)你应该把你知道的一切都告诉他。you should_ _ _ _ _.6. can you give some advice to the government?译：_点拨：give some advice to sb.=give sb. some advice 给提建议 注意

18、：advice 是不可数名词；可数名词建议是_练习：一条建议 (可数名词) _ (不可数名词) 听取某人的建议 _ 7.worse of all, some of them are quite rude when talking to others. 译：_点拨：when talking to others = when (they are )talking to others 是一个省略句; 在when, while 引导的时间状语从句中，如果从句的主语和主句的主语一致且从句的谓语含有be动词的某种形式,可同时省略从句的主语和be 练习：1)过马路时一定要小心。 do be careful

19、when/while _ _ _. 2)走在回家的路上我遇见了她。when/while _ , i met her.8.everyone knows their behavior is bad, but none of us knows how to stop them.译：_点拨：how to stop them在句中作knows的宾语。疑问代词who, what, which等和疑问副词when, where, how等后面跟不定式，构成不定式短语。在句中可作主语、宾语、表语、宾语补足语等。作主语时，谓语用单数。练习：1)到哪里去还是个问题。_ _ _ _still a question.

20、 作_语2)问题是怎样学好英语。the question is _ learn english well. 作_语3)他会建议你们如何处理这件事。he will advise you it. 作_语4我不知道下一步做什么。i dont know _ next. 作_语【归纳】i. 用所给单词的适当形式填空1. if you want to learn english well, youd better speak it as _ (many) as possible.2. dont be afraid of _ (catch) sars. 3. i was _ (surprise) to he

21、ar from my friend. 4. i happened _ (meet) an old friend of mine this morning. 5. our teacher hopes _ (get) a good result. ii. 汉译英1. 在公共场合吐痰是不礼貌的。its impolite to spit _.2. 很多古老的习俗正在消失。 many old customers are _. 3. 雨下得很大，结果我们不能出去。 it rained hard. _, we couldnt go out.4. 什么也不能阻止我们达到我们的目标。 _ will preven

22、t us from _ our aims.5. 绿色长城已经挽救大量的农田。 the great green wall _a lot of land.sectionc【学习目标】1.进一步学习各种污染对地球的危害和造成这些污染的原因；2.能根据不同的阅读目的，运用简单的阅读策略获取信息。【预习案】一、读1a，完成1b二、 在文中找到并划出下面的短语1.臭氧层_2.逃跑，渗出_3.在地球上；究竟_4.在这个时期_5.大大改变了我们的星球_6.全世界(2)_7.数以百万计的树木_8.拿走，取走_9.污染空气_10.越来越多种类的动植物_ 11.一种特殊的氧气_12.形成一个非常大的洞_ 13.来自

23、太阳的有害的射线_14.穿过这个洞_15.直接地到达地球_16.致癌_17.增加了许多_18.燃烧的油_19.来自太阳的热量_20.温室效应_21.海平面_22.全球气候_23.涉及，有关，提到_【探究案】 在文中划出下面的句子并分析1.some things weve done are very good for the earth while some are bad. 译：_点拨：some things weve done - 我们已经做过的事情,在句子中作主语 the films theyve seen-_while 并列连词，“而，却”，表示对照关系。练习：a.她妹妹喜欢唱歌，而她喜

24、欢阅读。 _ b.昨天他们都出去了，而她却留在家里。_链接：while- 在时 - 从属连词，常引导含有延续性动词的时间状语从句，表示一个动作在进行的同时，另一个动作也在发生 练习：我做作业时，妈妈正在做饭。 _ while- 一会儿，一段时间 - 名词 常用短语：for a while - 一会儿练习：我们将离开一会儿。 _2.when it rains or when the wind blows, the earth is taken away. 译：_点拨：take away 拿走，取走, 句子中是被动语态练习：a. 我不喜欢这些书，请把它们拿走。 _ b. they took awa

25、y everything they like when they left. 译：_拓展：与take 有关的词组脱下，（飞机）起飞 _ 把带到去 _ 发生 _ 代替 乘公交车，轮船，火车 _ 轮流，替换 _ 照顾，照看 拍照 _ 休息一下 _ 坐下 _ 吃药 _ 吸毒 _ 花费某人时间做某事 _ 锻炼_3.the heat from the sun cant escape so the temperature is rising. 译：_点拨：rise - 升起，上升 (不及物动词) 拓展：raise 举起，提起，抬起 ； 筹集 (及物动词)练习：1)太阳从东方升起。the sun _ in

26、the east. 2)河水在慢慢地上涨。the water in the river _ _ _.3)让我们为友谊干杯。lets _ glasses to _ _.4)he raised his voice to make everyone hear him clearly. 译：_【归纳】i. 用所给单词的适当形式填空 1. do you realize the _ (important) of studying english?2. human beings have destroyed the environment, so it has _ (punish) us. 3. the p

27、et dogs _ (die) made my sister very sad. 4. we must save the animals in _ (dangerous). ii. 汉译英1. 树木和草能阻止水把土壤冲走。trees and grass can _. 2. 请按时交作业。 please hand in your homework _.3. 务必让他知道在几点钟开始。 _ to let him know when the meeting begins. 4. 你明天可以乘公共汽车或小汽车去那儿。you can take _ to go there tomorrow.5. 我们明天

28、有许多作业要做，所以我们要早起。 we have _ tomorrow, so we need to get up early.6. 我认为我们中没有人喜欢污染。 i think _ likes pollution. 7. 窗户能让阳光进入房间和阻止风吹进房间。 windows can let the sunlight into the room and _ the wind _ into the room. 8. 结果，在老师的帮助下。他们取得了很大的进步。 _, they have made great progress with the help of the teacher. sect

29、iond【学习目标】1.总结不定代词和不定副词的用法；2.认识垃圾污染的危害，让学生意识到环境保护的重要性。【预习案】一、在文中找到并划出下面的短语1.似乎_2.把盐从海水中提炼出来_3.找到更便宜的方式去做_ 4.解决缺水的问题_5.避免严重缺水_6.节约用水，不能浪费_7.保护水资源，不能污染_8.找到重复用水的方法_9.在这一领域取得一些进步_10.日益，一天天地_11.尽管世界很饿，但它更渴_12.我们还能做些什么呢？_13.几乎有四分之三被水覆盖_14.仍然缺乏饮用水_15.用来浇灌植物和直接饮用 16.颁布禁止水污染的法律 17.收集和重复利用废水 18让我们行动起来保护水资源并节

30、约用水 【探究案】读1a，完成1b的问题并在原文中划出对应的句子并分析【归纳】 写出保护和节约水资源的不同方式。话题测试unit 2 topic 2一、词汇：(a)从方框中选择正确的词并用其适当形式填空： come, produce, use, teach, disappear, strong 1. the wind blew _ last night. 2. the rest of the students _ from the countryside.3. my mother_ in this school for 30 years.4. china has become the larg

31、est _ and _ of coal.5. some animals are in danger of _ because of pollution.(b)根据汉语意思，填入所缺的单词：1. we have done _ _(一些有用的事情)to protect the environment.2. _ _(砍伐)too many trees is bad for our environment.3. trees can keep water from_ _(流失)4. chatting on line _ _(占据)her too much time every year.5. at la

32、st,sandstorms _ _ _(形成了)(c)请区分stop to do sth._,stop doing sth._,stop(from)doing sth._根据汉语意思，将句子补充完整：1. the forests can stop the wind from _ the earth _(吹走)2. he is too tired. he has to stop _ _ _ _(休息)3. when the teacher came in, the students _ _(停止讲话)二、重点语法和句型：（1）复合不定代词和不定副词用法：1）复合不定代词作主语时，视为_数； 2）

33、不定代词/副词被形容词修饰时，应放在形容词的_面。(a)从方框中选择正确的词并用其适当形式填空： everybody, something, anybody, somebody 1._shouldnt smoke in the public place. 2._should learn to protect the environment.3. i cant find my book, maybe _ has taken it away. 4. _must be done to stop polluting the earth.(b)选择填空：( )1. the government has

34、done _ for the protection of environment. a. useful something b. useful anything c.something useful d.anything useful( )2. -you look so happy. -they say im beautiful._ has told me like that. a. somebody b. anybody c. everybody d. nobody( )3.-hi, bob! i cant find my history book. have you seen it _?

35、-sorry, i havent. why dont you ask jim? perhaps he has seen it. a. somewhere b. everywhere c. nowhere d. anywhere( )4. nothing _ difficult if you work hard. a. am b. is c. are d. be(2) 普通不定代all, none, both, neither及either的用法。(a)请用以上的5个词填空：1. _ of my parents are office workers.2. the old man has two

36、sons. but _ of them lives with him. so he is very lonely.3._ of my classmates are interested in english.4. its a long journey, but _ of four felt boring.5. - would you like tea or coffee? -_ is ok.(b)根据汉语意思，将句子补充完整：1. _ tom _(既不也不)jim has been to america.2. jane likes _ english _(都) chinese.3. the s

37、hirts i tried on were _ big _(要么要么) small, so i didnt buy one.三、选择填空：( )1.its time for class, you must stop _ to your teacher. a.listening b.to listen c.listened d.listen( )2.either tom or lucy _ to america. a.have gone b.has gone c.have d.has( )3.trees can _ water from _ away. a. keep, run b. keeps, running c. keep, to run d. keep, running( )4.it_ yang liwei about 21 hours _ the earth 14 times in his spaceship. a. spent, circling b. took, circling c.spent, to travel d. took, to circle( )5.the pollution made harbin city _ its water supply for 5 days. a. cu