中考化学总复习 第二部分 专题复习 高分保障 专题1 气体的制取与净化课件 新人教版 (3)

1、第一部分第一部分 系统复习系统复习 成绩基石成绩基石九年级九年级第第 23 23 讲讲Unit Unit 1313Unit 14Unit 14话题：本讲涉及了“保护环境和校园生活”等相关话题。要点梳理要点梳理过关过关 重点词汇过关重点词汇过关.用括号内所给词的适当形式填空1Hes a very caring (care)person who always thinks of others.2The boy is interested in scientific (science) study.32017鄂州中考Tom has invented a treeplanting machine.I

2、think no one is more creative (create) than him.He is a boy full of strange ideas.42017宿迁中考改编Most people in China couldnt afford (afford) cars twenty years ago.5Mr.Wangs teaching methods (method) are interesting，so I like his classes very much. .根据首字母或汉语提示填写单词6All the laws (法律) that have come into e

3、ffects cant be changed easily.72017恩施中考Yao Mings height gives him a big advantage over other players.82017武汉中考改编The teacher can see in our eyes that we are thirsty (渴求的) for knowledge.She tells us knowledge will give us wings to fly.9John always litters (乱扔) in the classroom and it makes others unha

4、ppy.10The manager was very angry with Bob because he didnt finish the task.高频考点高频考点精讲精讲考点考点1 1 affordafford的用法的用法 Yes，we cant afford to wait any longer to take action！是的，我们不能再等待下去了，要采取行动！ Unit 13 P100Unit 13 P100【注意】 afford通常与can，could，be able to等词连用，主要用于疑问句或否定句中。 考点考点2 2 learn learn 的用法的用法I have le

5、arned to play the keyboard in music class.在音乐课上我学会了弹琴。 Unit 14 P105Unit 14 P105【透析】 learn的常见用法如下：learn to do sth.意为“学会做某事”We should learn to relax.我们应该学会放松。learn about 意为“了解；知道”The more you learn about the Chinese history，the more you enjoy living in China.你了解中国历史越多，你就越喜欢居住在中国。learn from sb.意为“向某人学习

6、”We should learn from each other.我们应该互相学习。learn.by oneself 意为“自学”，相当于teach oneselfThe boy can learn French by himself.The boy can teach himself French.这个男孩自学法语。learnthat从句意为“认识到”He has learned that dishonesty does not pay.他已经认识到不诚实是没有好报的。考点考点3 3 mistake mistake 和和alongalong的用法的用法Youll make mistakes

7、along the way.一路走来，你会犯错误。 Unit 14 P110Unit 14 P110【透析】 (1)make mistakes 为固定短语，意为“犯错；出错”。也可以说成make a mistake。如：I used to make mistakes in spelling.我过去常常犯拼写错误。【拓展】 by mistake 意为“错误地”；mistake.for.意为“错把当作”。如：My uncle mistook me for my twin brother.我叔叔错把我当成了我的孪生哥哥。He took my book by mistake.他错拿了我的书。(2)al

8、ong the way 意为“沿着这条路”。along 为介词，意为“沿着”。如：There are many shops along the road.沿着这条路有很多的商店。【拓展】辨析along，across与throughalong沿着通常指沿着狭长的东西I saw him running along the road.我看见他正沿着那条路跑。across横过；穿过主要表示从某物的表面“横过”，从一头到另一头He walked across the road carefully.他小心地穿过马路。through横过；穿过表示从某个空间或内部穿过He walked through the

9、 forest alone.他独自一人穿过森林。考点考点4 4 辨析辨析separateseparate与与dividedivideAlthough you have to go your separate ways now，I hope that in a few years time，youll come back to visit our school.虽然你们现在不得不走你们自己的路，但是我希望几年后，你们会回来看看我们的学校。 Unit 14 P110Unit 14 P110separate常与介词from连用，separate.from.“将与分开”，指把原来连在一起或接近的部分分

10、隔开来The two countries are separated by a river.这两个国家相隔一条河。divide常与介词into连用，o.“把与分开”，指把整个部分分割为若干部分A year is divided into four seasons.一年分为四季。考点考点5 5 set out set out 的用法的用法As you set out on your new journey.在你们踏上新征程时 Unit 14 P110 Unit 14 P110【透析】(1)set out“出发；启程”，其后常跟“for地点”，表示“出发去某地”。如：Mary

11、and I will set out for Beijing.玛丽和我将启程去北京。(2)set out on sth.意为“开始进行新的或重要的事情”。如：When we set out on this project，we knew it would be difficult.我们着手这个项目的时候就知道它的难处。(3)set out，其后跟动词不定式，意为“(怀着目标)开始做某事”。如：He set out to win the game.他一心努力要赢得比赛。关联语法链接关联语法链接 语法1：复习动词的时态和语态(现在进行时、一般现在时的被动语态等)，情态动词 见P144语法2：复习一

12、般过去时、现在完成时，宾语从句、一般将来时、一般现在时、现在进行时 见P143考点即时考点即时运用运用单项填空1语法12017盐城中考改编It is reported that about 120 foreign soccer experts to teach soccer school students.Ainvite Bto be invitedCwill be invited2考点1I spent 5，000 yuan on this iPhone.Wow，so much！I cant afford it.Abuy Bbought Cto buy3考点3I took your bag i

13、nstead of mine .Afor mistake Bby mistakeCin mistakeBCC4语法22017包头中考改编Can I speak to Mrs.Thomson?Hold on please.She dishes in the kitchen.Awashes Bwashed Cis washing5考点2Im sure shell her mistakes.Alearn from Blearn about Clearn to6考点3Hey，Mary，I saw you studying in the library just now.Oh，Im staying in

14、 the classroom all the time.I think you must me for someone else.Athink Bmistook Cmistake7考点2Youd better find a local guide with you，if you want to learn more the local culture.Afrom Bon CaboutCCAC 8考点4The whole class is into four groups to finish their tasks.Adivided Bbroken Cseparated9考点4Some peop

15、le believed that iPads may students from each other.Adivide Bseparate Clead10考点3Ma Yun，the Chairperson of Alibaba，has made much money the Internet.Athrough Balong Cacross11考点5The bus will at six oclock，so we must be in hurry.Abegin Bbe set out Cset out12考点3My father has a habit of jogging the Jinchu

16、an River for an hour in the morning.Abetween Balong CthroughBB CAA话题话题14：环境保护：环境保护话题写作话题写作指导指导考情分析考情分析 从全国中考近五年与环境保护相关话题书面表达的命题来看，通常有三个角度的考查内容：1地球是人类唯一的家园，为遏制和改善环境日益恶化的状况，在日常生活中人们应该做到减少废气排放、种植绿色植物等来保护自然环境。2叙述你参加过的一次环保活动。3我们能为环境保护做些什么呢？以“环保从我做起”为话题谈论节约资源、垃圾分类、循环利用等。如：2016连云港。 结合菏泽考情，可以预测第三种命题角度出题几率较大

17、。常用短语句型常用短语句型【积累背诵】破坏环境的行为及影响破坏环境的行为及影响1cut down砍倒2pour waste water into向里排放污水3spit in public在公共场合吐痰4throw away扔掉；抛弃5throw litter around / everywhere 到处扔垃圾6do harm to / be harmful to / be bad for对有害7become worse and worse变得越来越糟糕保护环境的做法保护环境的做法1turn off关掉2clean up打扫；(清除)干净3call on号召4stay / keep away f

18、rom.远离5start to do sth.开始做某事6stop doing sth.停止做某事7had better do sth.最好做某事8try ones best to do sth.尽某人最大的努力做某事9protect.from doing sth.保护免受10prevent.from.阻止免受总结总结1in ones opinion依某人看2so that以便；为了3make a difference起作用；影响4play a part in在起作用5take measures / action to do sth.采取措施/行动做某事句式句式1Its our duty to

19、 do sth.做某事是我们的责任。2.had better do sth.最好做某事。3Its helpful to do sth.做某事是有帮助的。1砍伐太多的树木对环境有害。 2我们应该尽最大的努力去保护环境。 Cutting down too many trees is bad for / is harmful to the environment. We should try our best to protect the environment. 【基础写作运用】3总之，我们应该采取措施保护环境免受污染。 In a word，we should take measures / ac

20、tion to prevent the environment from being polluted. 经典亮句积累经典亮句积累开头句1It is very important to take care of our environment.爱护环境非常重要。2Its our duty to protect our environment.保护环境是我们的责任。经典亮句积累经典亮句积累中间句1We should not throw litter onto the ground.我们不应该把垃圾扔在地上。2We should not spit in a public place / cut d

21、own the trees.我们不应该在公共场合吐痰/砍树。3We are supposed to plant more flowers and trees.我们应该种更多的花草树木。4We must pick up some rubbish and throw it into a dustbin.我们必须捡起垃圾并扔进垃圾桶中。结尾句1Recycling trash is also important.回收垃圾也非常重要。2Many rivers and lakes are seriously polluted.许多河流湖泊被严重污染。3Its necessary to save water

22、.节水是必需的。4Its everyones duty to love and protect the environment.爱护和保护环境是每个人的责任。典例运用典例运用【例】2017鄂州中考为响应我市“创建国家卫生城市”的号召，6月3日，5000多名市民以绿色出行的方式参与了“生态鄂州环洋澜湖健步走”活动。请以“共建绿色城市”为主题，根据以下文字提示，并适当发表自己的观点，写一篇英语短文。主题主题Lets build a green city together具体做法具体做法方式益处1.骑车、徒步出行避免交通拥堵，减少空气污染2.不乱扔垃圾，不随地吐痰让城市变得干净舒适3.植树造林美化城

23、市，保护环境你的你的建议建议联系自己的生活实际提出几条具体的合理的建议。(至少2条)写作要求180100词(开头的首句已给出，不计算在总词数内)；2文中不能出现自己的姓名和所在学校的名称及其他相关信息，否则不予评分。参考词汇吐痰spit；垃圾箱dustbin；交通拥堵traffic jams；环境environment【审题指导】根据图表以及文字提示，可以提取以下信息：1文章包括两个部分，一是具体做法；二是你的建议。2文章应该用一般现在时来写。3字数在80100词，不能出现自己的姓名和所在学校的名称及其他相关信息。【拟定提纲】【我的作品】Lets build a green city toge

24、therLets build a green city togetherAs a middle school student of Ezhou，its our duty to help build a green city. Lets build a green city togetherLets build a green city together As a middle school student of Ezhou，its our duty to help build a green city.We can avoid the We can avoid the traffic jams and reduce the air pollution by riding traffic jams and reduce the air pollution by riding bikes or walking.bikes or wa