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 (9)

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 17 17 讲讲Unit 1Unit 1Unit 2Unit 2话题：本讲涉及了“学着如何学习以及节日”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.用所给词的适当形式填空1As a student，you should try to create (creative) an interest in what you learn.2On my way to school，I found an old man lying (lie) on the ground.32017龙东中考When you learn

2、 English，you should pay more attention to your pronunciation (pronounce)4 Knowledge (know) comes from questioning.5Who is that man?He is my business (business) partner. .根据首字母或汉语意思填空6I will be punished strictly by Mr.Zhang if I am late for school again.7Its my secret ，please dont tell it to others.8

3、2017海南中考Keeping an English diary can help us improve our writing ability (能力)92016烟台中考John is interested in chemistry (化学)10Reading aloud (大声地) can help students remember what they have learned.高频考点高频考点精讲精讲考点考点1 1 byby的用法的用法 I study by working with a group.我通过小组学习来学习英语。 Unit 1 P1Unit 1 P1【透析】by此处意为“

4、通过”，表示方式，后跟动词ing形式。如：How do you learn English？你怎样学习英语？By working with friends.通过和朋友一起学习。【归纳】 (1)by的用法byv.ing“通过，以的方式”She makes a living by writing books.她以写书为生。by交通工具“乘/驾/坐”I usually go to school by bike.我通常骑自行车去上学。by地点“在旁边；在附近”We live by the sea.我们住在海边。(2)和by有关的短语：learn sth.by heart牢记在心；by accident

5、偶然；意外地；by mistake错误地，无意中；by chance偶然地；by oneself独自；learn sth.by oneself自学by时间“不迟于，在之前”I shall be back by 5 oclock.5点之前我应该能回来。by名词 “(表示作者)被；由”I like articles written by Lu Xun.我喜欢鲁迅写的文章。 考点考点2 2 wonderwonder与与whetherwhether的用法的用法Bill wonders whether theyll have zongzi again next year.比尔想知道明年他们是否将再吃粽子

6、。 Unit 2 P9Unit 2 P9【透析】 (1)wonder 此处用作及物动词，意为“想知道”，相当于want to know。如：I wonder if I could use your mobile phone.我想知道是否可以用一下你的手机。(2)whether 为连词，意为“是否；是不是”，引导宾语从句，相当于if。如：He wonders whether / if it will be fine tomorrow.他想知道明天是否会晴天。【拓展】 辨析whether与if 相同点whether和if都可以引导宾语从句，表示“是否”，在口语或间接引语中两者可以互换使用I won

7、der if / whether I can get some advice from you.我想知道我能否从你那里得到一些建议。Ask him whether / if he can come.问问他是否能来。 不同点whether引导的从句常与连词or或or not连用，而if一般不能Let me know whether you can come or not.让我知道你是否能来。当宾语从句提到句首时，只能用whether引导，而不能用ofWhether it is true or nor，I cant tell.是真是假，我无法判知。if可以引导条件状语从句，意为“如果”，而whet

8、her不可以If it doesnt rain tomorrow，we will go camping.如果明天不下雨，我们将去野营。考点考点3 3 dress up dress up 的用法的用法 I think its fun to dress up as cartoon characters! 我认为装扮成卡通人物是很有趣的！ Unit 2 P13Unit 2 P13【透析】 dress up“打扮；穿上盛装”。如：Mother helped her to dress up for the party.妈妈帮助她穿上参加晚会的礼服。【拓展】 辨析put on，wear与dressput

9、on表动作，“穿上；戴上”，宾语为衣物Its cold outside.Put on more clothes.外面冷。多穿一点衣服。wear表状态，“穿、戴着”。wearbe inThe boy wears a new coat today.这个男孩今天穿着一件新大衣。dress后面不接衣服，可以接人，dress sb./ oneself“给某人/某人自己穿衣服”。常用词组be dressed in衣服，也表状态The girl is dressed in a red coat today.这个女孩今天穿着一件红大衣。考点考点4 4 辨析辨析deaddead，diedie，deathdeat

10、h与与dyingdyingOne Christmas Eve，Scrooge sees the ghost of Jacob Marley，his dead business partner.在一个平安夜，斯克鲁奇看见雅各布马利的灵魂，那是他死去的商业伙伴。 Unit 2 P14Unit 2 P14dead形容词，意为“死的”，用来作表语和定语Though he is dead，he is still alive in our hearts.尽管他死了，但仍然活在我们心中。die不及物动词，是短暂性动词The poor man died three years ago.那个可怜的人三年前去世了

11、。death名词，意为“死亡”His death made us very sad.他的死使我们很伤心。dyingdie的现在分词，也可用作形容词，表示“垂死的，要死的”，常用作定语The doctor tried to save the dying boy.医生努力抢救这个生命垂危的男孩。考点考点5 5 warnwarn和和end upend up的用法的用法He warns Scrooge to change his ways if he doesnt want to end up like him.他警告斯克鲁奇，如果不想和他落得一样下场的话，就要改过自新。 Unit 2 P14Unit

12、 2 P14【透析】 (1)warn 作动词，意为“警告；告诫”，常用的结构有：(2)end up 意为“最终成为；最后处于”，后常跟形容词，介词短语或动名词(短语)，其常用搭配有：end up with“以结束”；end up like“像结束”；end up as“最终成为”。关联语法链接关联语法链接 语法1：宾语从句(由that，if和whether引导) 见P148语法2：感叹句 见P146考点即时考点即时运用运用单项填空1考点4Traffic accidents are one of the main causes of for Americans.Adie Bdeath Cdyin

13、g2考点5The headmaster warned us against computer games too much.Aplay Bto play Cplaying3语法12017成都中考Hi，Amy，you live on Center Street.Can you tell me ？Sure.There is one called Grandmas Home.Awhere it is Bhow I can get thereCif there is a restaurant on itBCC4考点5My parents often warn me the danger of swim

14、ming alone in the river.Aof Bin Cfor5考点4The little girl takes good care of the bird every day.Adeath Bdied Cdying6考点3She thinks it is not proper for little kids to a necklace.Awear Bput on Ctry on7语法1Youd better travel around Nanjing with a local tour guide you want to know more about its culture.Au

15、nless Balthough CifCCAA8考点42018原创预测Although Kimi has been for a year，he still lives in the hearts of his fans.Adie Bdead Cdying9考点52018原创预测The police warned me here，or I would be punished.Ato park Bnot to parkCbe parking10考点3My mom always reminds me to more clothes in case of catching a cold.Aput aw

16、ay Bbe in Cput on11考点1You can improve your English practicing more.Aby Bwith CofBBCA12考点1How do you know so much about the UFO?I usually get the information by the Internet.Asurf Bsurfed Csurfing13语法22017十堰中考改编Ma Long won the mens singles final match at the 2017 World Table Tennis Championships. exc

17、iting news it is!AWhat BWhat an CHow14考点2 the missing plane is found or not，the whole world should pay more attention to the safety of people，especially at airports.AThat BIf CWhether15考点3Edward is old enough to himself.Awear Bdress Cput onBCCA话题话题1010：如何学习如何学习【积累背诵】具体做法及建议具体做法及建议1take notes记笔记2prac

18、tice doing sth.练习做某事3make some preparations做一些准备4advise sb. to do sth.建议某人做某事话题写作话题写作指导指导常用短语句型常用短语句型考情分析考情分析 分析近几年中考中与如何学习相关话题的书面表达，主要从以下三方面进行设题：介绍个人学习某学科的方法及建议(如小组合作，记笔记)；反映学习中存在的问题，寻求帮助或制定计划；对学习方法的看法和建议。结合菏泽考情，预测第种命题角度几率更大。5ask sb. for help向某人求助6make good use of充分利用7follow the advice采纳建议8develop

19、good learning habits养成良好的学习习惯句式句式1There are three good ways to.有三种的好方法。2It is also a good idea to.这也是一个的好主意。3This will help you to.这将有助于你4If you do this，you will.如果你这样做，你将1你可以设法通过看英文电影来提高你的英语。 2和同学讨论也是一个好主意。 3你练习得越多，你犯的错误就会越少。You can try to improve your English by watching English movies. It is also

20、 a good idea to have a discussion with your classmates. 【基础写作运用】 The more practice you get，the fewer mistakes you will make. 经典亮句积累经典亮句积累开头句1There are three ways to learn English.有三种学习英语的方法。2Knowledge comes from communicating and questioning.知识来源于交流和质疑。中间句1You should listen to the teacher carefully.

21、你应该认真听老师讲课。2Dont be afraid of making mistakes.别怕犯错误。3You should study hard and never give up.你应该努力学习，永不放弃。4Ask your classmates or teachers for help when youre in trouble.当你遇到麻烦时向你的同学或老师求助。结尾句1You will improve a lot if you follow the advice.如果你采纳这些建议你会提高很多。2I hope you will make great progress in your

22、 study.我希望你在学习上会取得很大的进步。谚语俗语Practice makes perfect.熟能生巧。典例运用典例运用【例】2017宜宾中考目前很多学生整天都忙于学习，成绩却不理想。请根据表格内容，结合自身实际，写一篇关于“怎样提高学习效率”的短文。学习方法学习方法1.listen to the teacher2take notes3review in time4correct mistakes.体育锻炼体育锻炼1.exercise.其他方面其他方面1.make good use of time2ask sb.for help.要求：1.短文应条理清楚，行文连贯，段落分明，90词左右

23、。(开头和结尾已给出，不计入总字数)2短文中不能出现真实的姓名、学校、地名等信息。3短文应包括全部信息，可围绕主题适当发挥。【审题指导】1根据图表中所给的要点展开写作，要介绍清楚，不要遗漏。2短文要条理清楚，行文连贯，字数在90词左右。3开头结尾已给出，不计入总词数。【拟定提纲】【我的作品】How to improve our study effectivelyHow to improve our study effectivelyA great number of students cant finish their tasks，which leads to bad results and

24、makes them less interested in their study.How can we solve the problem？Here are some suggestions. If you follow the advice that I have mentioned above，you will be successful. How to improve our study effectivelyHow to improve our study effectivelyA great number of students cant finish their tasks，wh

25、ich leads to bad results and makes them less interested in their study.How can we solve the problem？Here are some suggestions.First and foremostFirst and foremost，we should listen carefully and pay attention to what teachers say in class, whichwhich is good for saving much time that should be spent

26、on other subjects.Of courseOf course，it is necessaryit is necessary to take notes in class to help us understand lessons better and review what we have learned in time. BesidesBesides，there is no doubt thatthere is no doubt that we should correct our mistakes that we made during practice.Perhaps mor

27、e importantly，not onlynot only can taking exercise build upbuild up our strong body, but alsobut also let our brain have enough time to rest，thus improving our study effectively。范文借鉴范文借鉴Last but not leastLast but not least，wed better make good use of wed better make good use of time.Dont put off wha

28、t we can do today till time.Dont put off what we can do today till tomorrow.tomorrow.We should ask the teachers or classmates for help if we have some questions.If you follow the advice that I have mentioned above，you will be successful.,借鉴点借鉴点第二段写的是关于学习方法的内容。作者使用first and foremost.of course.besides

29、.使文章思路清晰；which 引导的非限制性定语从句，it is necessary.和there is no doubt that.都是高分句型，长句短句交替使用，是本段的亮点。第三段写的是运动方面的建议。使用not only.but also.的句型，还有短语build up等都为本文增色不少。第四段写其他方面的建议。使用短语Last but not least；句型wed better.；还有谚语Dont put off what we can do today till tomorrow.都让人眼前一亮，让人感叹作者的功力深厚，知识储备丰富。不失为一篇佳作。话题话题1111：节日：节日

30、【积累背诵】节日节日1the Spring Festival春节2the Dragon Boat Festival端午节3MidAutumn Day中秋节4traditional festivals传统节日5one of the most important festivals最重要的节日之一6have a long history有一段悠久的历史常用短语句型常用短语句型考情分析考情分析 分析近几年中考题中与节日相关的书面表达，主要会从以下两个方面进行设题：介绍传统节日的起源；节日的传统习俗，以及自己在节日当天的活动及感受。根据菏泽的考情，第种命题的可能性较大。节日活动或安排节日活动或安排1g

31、et together to have a big dinner聚在一起享受一顿丰盛的晚餐2visit relatives and friends拜访家人和朋友3enjoy the full moon欣赏满月4bring good luck to.给带来好运5have funenjoy oneself过得愉快句式句式1Its said that.据说2As far as I know.据我所知3It is important for sb.to do sth.对某人来说，做某事是重要的1中秋节是中国的传统节日。 2端午节在每年阴历的五月初五被庆祝。 MidAutumn Day is a Chi

32、nese traditional festival. The Dragon Boat Festival is celebrated on the fifth day of the fifth lunar month every year. 【基础写作运用】 经典亮句积累经典亮句积累开头句1Im very glad to tell you something about the Spring Festival.我很开心告诉你一些关于春节的事情。2The festival has a long history of more than 2，000 years.这个节日已有2000多年的历史。3Id

33、 like to introduce you something about Fathers Day.我想向你介绍一些关于父亲节的事情。中间句1Everyone goes home to get together with their family，though someone is far away from home.每个人都回家与家人团聚，即使有些人离家很远。2I always help my mother clean the windows and wash the clothes on Mothers Day.我总是在母亲节帮助我的妈妈擦窗户，洗衣服。3After the meal，

34、we watch Spring Festival Gala on TV until twelve oclock.吃完饭之后，我们在电视上看春节联欢晚会直到12点。4That day my parents and relatives give “Redbags” to us children.那天我的父母和亲戚们给我们这些孩子们红包。结尾句1I hope that you can come to celebrate it with us in the near future.我希望在不久的将来你能来和我们一起庆祝它。2In a word，the MidAutumn Festival is a v

35、ery nice festival for Chinese people.总之，中秋节对中国人来说是一个非常好的节日。3Wish you a wonderful Spring Festival.希望你度过一个美好的春节。谚语俗语Wishing you and yours a happy new year.万事如意，合家平安。典例运用典例运用【例】2016泰安中考假设你是李华，你的英国笔友Peter的学校网站“中国文化”栏目拟刊登中国节日风俗及中学生生活的短文。近期Peter给你写了email约稿。请你根据以下要点回一封邮件。1对该栏目的评价；2介绍我国的中秋节；3你的建议和希望。注意：1.词数100左右，开头与结尾已给出，不计入总词数；2可适当增加细节，以使行文连贯。【审题指导】1这是一篇提纲式作文，主要从三方面叙述：对“中国