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 (16)

1、第一部分第一部分 系统复习系统复习 成绩基石成绩基石八年级上册八年级上册第第 10 10 讲讲Unit 7Unit 7Unit 8Unit 8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1The students planted(plant) trees and flowers in the garden yesterday.2Thousands of travelers(travel) come to see Yellow Crane Tower in Wuhan every year.32017连云港中考改编Our government has done a l

2、ot to protect the environment.Lots of polluted(pollute) river are much cleaner now.4Dont ride your bike too fast in the street.Its very dangerous(danger)5Its impossible(possible) to finish all the work in one hour.62017包头中考What happened to Kate?She had a terrible fall(fall) and broke her right arm.7

3、2017荆州中考改编The air pollution is still terrible in North China.It will be even worse if we dont take action to protect environment(environmental) around us.8When an earthquake stops shaking(shake)，please be careful because it hasnt ended yet.9People celebrate(celebration) the Lantern Festival in many

4、ways.102017苏州中考改编Finally(final)，I would like to thank you all for coming here.高频考点高频考点精讲精讲考点考点1 1 possiblepossible的用法，的用法，seemseem的用法的用法This was not possible 20 years ago，but computers and rockets also seemed impossible 100 years ago.20年前这是不可能的，但在100年以前，电脑和火箭似乎也是不可能的。 Unit 7 P53【透析】 possible作形容词，意为“

5、可能的”，其反义词为impossible，意为“不可能的”。如：Well start as early as possible.我们将尽可能早出发。Dont ask me to do impossible things.别叫我做不可能的事情。【拓展】 (1)as.as possible 意为“尽可能地”，两个as之间应用形容词或副词的原级。(2)if possible 意为“如果可能的话”。如：If possible I want to go to the USA for study.如果可能的话，我想去美国学习。seem的用法【注意】 seem to do sth.和It seems/see

6、med that.从句可以互换。如：It seems that he is very happy.He seems to be very happy.他看上去好像很开心。考点考点2 2 辨析辨析alreadyalready与与yetyetToday there are already robots working in factories.今天已经有机器人在工厂工作了。 Unit 7 P53alreadyalready一般用于肯定句；用于疑问句时，表示“惊喜，意外”I have already seen the movie.我已经看过这部电影了。yetyet一般用于否定句和疑问句句末，表示“已

7、经，还”Have you decided where to go on vacation yet？你决定去哪里度假了吗？Not yet.还没有(决定)。考点考点3 3 agreeagree短语的用法，短语的用法，hundreds ofhundreds of的用法的用法However，they agree it may take hundreds of years.然而，他们认为这可能还需要几百年的时间。 Unit 7 P53【透析】 (1)常用的agree短语辨析agree agree with sb.with sb.同意某人或某人的意见、看法If she felt he was right，

8、she would agree with him.如果她感觉他是对的，她会同意他的看法。agree to agree to do sth.do sth.同意干某事No one really knows why he agreed to do the film.没人知道他为什么会拍那部电影。agree on agree on sth.sth.对某事看法一致They agreed on a date for the party.他们商定好了聚会的日子。(2)hundreds of意为“许多，大量”；类似的搭配还有thousands / millions of。【注意】 hundred，thousa

9、nd，million，billion等数词，前面有具体的数字修饰，表示确数，其后不加s，不和of 连用。如：The building is about two hundred years old.这座建筑大约有200年的历史了。若表示一个约数，前面没有具体数字时，其后要加s，而且与of连用。如：There are hundreds of families living in the village.这个村子里住着上百户人家。【巧记】 模糊数字两“有”(有s，有of)；具体数字两“无”(无s，无of)。考点考点4 4 needneed的用法的用法We need one cup of yogurt

10、.我们需要一杯酸奶。 Unit 8 P58作实义作实义动词动词( (有人有人称和数称和数的变化的变化) )need名词，表示“需要”We need two books.我们需要两本书。need to do sth.“需要做某事”I dont need to see the doctor.我不需要看医生。need doing sth. need to be done “某事需要被做”The bike needs mending.The bike needs to be mended.自行车需要被修理一下。作情态作情态动词动词( (无人无人称和数称和数的变化的变化) )need动词原形，“需要做”

11、，多用于否定句和疑问句中You neednt worry about your study.你不必担心你的学习。由need引出的一般疑问句，肯定答语常用must或have to；否定答语用neednt或dont have to,Need I answer the question?Yes，you must(have to)/No，you neednt.我需要回答那个问题吗？是的，你必须回答。/不，不必了。考点考点5 5 辨析辨析fill.withfill.with，be filled withbe filled with与与be full ofbe full ofNext, fill the

12、turkey with this bread mix.接下来，把面包屑填入火鸡中。 Unit 8 P61【透析】 fill.with，be filled with与be full of都表示“充满，装满”，但其用法有别：fill.withfill.with“用把装满”，主语通常是人，强调动作的过程She filled the bottle with Cola.她往瓶子里装满了可乐。be filled withbe filled with“装满，充满，填满”，侧重于动作The bag was filled with food.袋子里被装满了食物。be full ofbe full of“装满，充

13、满，填满”，侧重于状态The box is full of books.那个箱子里面充满了书。【拓展】 其他有关fill的短语：fill in填写；fill up填满，装满关联语法链接关联语法链接 语法1：一般将来时will 见P143语法2：用more，less，fewer表示数量关系 见P133和134语法3：可数名词和不可数名词 见P116 语法4：副词的序列考点即时考点即时运用运用单项填空1考点1It is _ to catch the bus if we set off early.Aimpossible Bpossible Cbelievable2考点4The man is fee

14、ling much better now，so you _ call a doctor.Acant Bshouldnt Cneednt3考点1Nowadays WeChat is very popular among friends.Yes.It seems _ the best way of communication that people like.Athat Bto be Cto do BCB4语法22017云南中考改编There are _ sharing bikes in many cities，so there will be _ pollution.Aless and less

15、；more and moreBless and less；fewer and fewerCmore and more；less and less5考点4The Tshirt needs _Ato wash BwashingCto be washing6考点1There are dark clouds，and the wind is blowing strongly.It _ that a typhoon is coming.Afeels Bsounds Cseems7考点3Chinese is learnt by many people all over the world today.Yes

16、，I _ you.Aagree with Bagree to Cagree onCBCA8考点2Have you had lunch _？No，I havent.Aalready Bstill Cyet9考点4Need I stay here?Yes，you _Aneed Bcan Cmust10语法12017宜宾中考There _ a basketball match in our school this afternoon.Awill have Bwill beCis going to have11考点3My mother _ buy me a new ipad as my birthda

17、y present.Aagrees to Bused to Cagrees on12考点1The future seems _ for poor Mike，because he can go to school again.Ahope Bhopeful Chope lessCCBAB13考点5If you read a lot，your life will be _pleasure.Aworthy of Bfond of Cfull of14考点3 2017吉林中考_ birds have come back because the environment here becomes bette

18、r and better.AThousands of BThousand ofCThousands15考点5Jeff was very excited and his eyes were filled _ tears.Awith Bin Cof16语法32017通辽中考改编What would you like to eat?Some _，please.Apear Bcoffee CbreadCAAC话题写作指导话题写作指导话题 5：未来的生活考情分析从全国近几年中考中有关未来生活的书面表达的命题来看，通常有以下几个角度的内容：谈谈短期一年内的生活变化和打算；规划人生，成就未来。作为中学生首先

19、要有梦想，对未来要有期待，并为了这个梦想努力坚守，才能梦想成真；时代在变化，生活也在变化，未来的生活是什么样子呢？结合菏泽考情，可以预测第一种考查角度机率更大。常用短语句型常用短语句型【积累背诵】职业选择1grow up长大2in the future在将来3dream to be / dream of being梦想成为4want / would like to do sth.想要做某事5plan to do sth.计划做某事6make a decision / decisions 做决定7My dream is to be.我的梦想是成为选择职业的理由1work for.为工作/效力2p

20、rotect.from.保护免受3save ones life 拯救某人的生命4bring happiness to people给人们带来快乐5Its ones duty to do sth.做某事是某人的责任6make itadj.使如何做1work hard 努力工作2make up ones mind to do sth.下定决心做某事3try to do sth./try ones best to do sth.尽力做某事/尽某人最大努力做某事结尾1come true实现2be sure to一定会3Im sure that.我确信【基础写作运用】1每个人都应该有一个梦想。_2有些学

21、生梦想成为科学家。_3从现在起，我们应该好好学习实现我们的梦想。_4我会尽我最大的努力取得进步。_ Everyone should have a dream. Some students dream of being scientists.We should study hard from now on to achieve our dreams. I will do my best to make great progress.经典亮句积累经典亮句积累开头句1What do you think the world will be like in 100 years？你认为100年之后的世界将

22、会是什么样？2Everyone has a dream.My dream is to be a dancer.每个人都有一个梦想。我的梦想是成为一名舞蹈家。3What the future life will be like？未来的生活将会是什么样？中间句1A good beginning is half done，and we can do something from now on.良好的开端是成功的一半，从现在开始，我们可以做一些事情。2We never know what will happen in the future.我们永远不会知道将来会发生什么。3As we all know

23、，much work will be done by robots.众所周知，机器人可以做很多工作。结尾句1As long as we work hard，we will realize our dream.只要我们努力工作，我们将会实现我们的梦想。2I think our life will become better and better.我认为我们的生活将会变得越来越好。3Im sure that your dream will come true one day.我相信有一天你的梦想会实现的。谚语俗语1Where there is a will，there is a way.有志者，事

24、竟成。2No pains，no gains.不劳无获。典例运用典例运用【例】 2016攀枝花中考假定你是李华，你的英国笔友John发来电子邮件，询问你长大后想从事什么样的工作。请根据下列提示给他回一封邮件：写作要求1你的父母对你的期望以及他们的理由；2你对于自己未来的设想及理由；3为了实现你的目标，你打算怎么做。注意：1词数80100，开头和结尾已给出，但不计入总词数；2短文必须包括所有要点，不要逐词翻译，可适当发挥，使其连贯、通顺；3文中不得出现真实的人名、校名等相关信息。【审题指导】1联系所给提示，内容要包括三个方面：父母对自己的期望以及他们的理由；自己对未来的设想及理由；为了实现自己的目

25、标，打算怎么做。根据提示中的所有信息，可适当发挥。2描述希望、设想及理由时，可使用一般现在时，描述为了实现理想职业，自己的打算和计划时，用一般将来时。3写作时主要使用第一人称，描写他人时使用第三人称。【拟定提纲】【我的作品】Dear John， How are you recently？Im glad to receive your email.You asked me about my wish about my future.Yours，Li Hua范文借鉴范文借鉴Dear John， How are you recently？Im glad to receive your email.You asked me about my wish about my future.My parents want me to be a teacher.Because they think Because they think I am active and can get