高中英语unit9wheelslesson3cleanmachines课件北师大必修3.ppt

1、Lesson 3Clean Machines一、下面四种不同的车,你知道它们分别是靠什么提供动力的吗答案:A.petrolB.gasolineC.solar energyD.electricity二、将下列单词填入相应的句子中chapterimpressionessayappreciateoperatorreliable1.Things that are can be trusted to work well.2.A(n)is one of the parts that a book is divided into.Each chapter has a number,and sometimes

2、 a title.3.If you something,you like it because you recognize its good quality.4.A(n)is a short piece of writing on one particular subject written by a student.5.Your of a person or thing is what you think they are like,usually after having seen or heard them.6.A(n)is a person who connects telephone

3、 calls at a telephone exchange.reliable chapter appreciate essay impression operator 三、阅读课文,选择正确答案1.Which of the following is TRUE about Marie Logan?A.She is from Australia.B.She got interested in solar cars when in kindergarten.C.She began taking part in car races when she was at university.D.She w

4、as always the winner in the car races she took part in.2.The race crossing the whole of Australia.A.can be done within a weekB.is longer than the Changjiang RiverC.is Marie Logans favourite because she was once the winner in itD.travels around the countryAA3.Marie Logan writes the book about solar c

5、ars.A.to make a livingB.to tell people how to design a carC.to get people to know more about solar carsD.to persuade people to buy solar cars4.From the conversation,we can infer(推断).A.Marie Logans book will be popularB.solar cars will be popularC.solar cars can run faster than a usual carD.weather c

6、an influence a solar cars speedCD四、阅读课文,填写下面的表格 use solar energy 80 40 clean safe pollution slow reliable 五、指出下列句子所表达的是既定事实还是持续行为,注意各自的谓语形式1.Weve looked at the figures and they are not good.2.You havent been studying very hard recently.3.Have you told everyone yet?4.She has revised a lot.5.Weve been

7、 looking for a new house since June.6.Shes been revising for her exams for weeks.7.Ive finished half my report.8.Ive been working on it all morning.9.They have been redecorating for ages.10.They have redecorated the sitting room.既定事实:持续行为:1;3;4;7;102;5;6;8;9123451.Ive designed five or six different

8、cars so far.到目前为止,我已经设计了五六款不同的汽车。考点so far 迄今为止So far it has been raining for a week.迄今为止,雨已经下了一个星期了。He said he would telephone but we havent heard from him so far.他说要打电话来,但我们到现在还没有收到他的音讯。归纳so far在句中用作时间状语,表示从过去某时到“现在”(即说话时)的一段时间,相当于until now,因此常与现在完成时连用。它在句中的位置较为灵活,既可位于句首,也可位于句末。12345考点延伸习惯用语:So far

9、 so good.迄今为止,一切顺利。Weve reached the semi-finals.So far so good.我们已经进入了半决赛。迄今为止,一切顺利。How are you getting along with your new classmates?你与你的新同学相处得怎么样?So far so good.迄今为止,一切顺利。12345123452.I want people to have a good impression of solar cars.我想让人们对太阳能汽车有个好印象。考点impression n.印象,感觉A good first impression

10、 increases sales.良好的第一印象增加销售额。You never get a second chance to leave a first impression!你不会有第二次机会给人留下第一印象!Every scene on the screen keeps me up-to-date and some of them will leave an enduring impression on my life.屏幕上的每个画面都让我拥有最新的信息,有些将在我的生活中留下不可磨灭的印象。We were left with the impression that we were de

11、termined to win.我们留下了这样一种印象我们志在必得。Im under the impression that he once asked me the question.我以为他曾经问过我这个问题。12345归纳impression与不同介词的搭配leave an impression on sb.给某人留下印象leave sb.with the impression that.给某人留下的印象(be)under the impression that.认为,(通常指)误以为12345考点延伸(1)同根词:impress vt.给留下深刻印象Our volunteers wil

12、l surely impress our guests.我们的志愿者们肯定会给我们的客人留下深刻的印象。My father impressed me with the importance of hard work.我父亲使我明白了努力工作的重要性。Professor Smith impressed all his students with his great knowledge of history.史密斯教授用他渊博的历史知识给他的所有学生留下了深刻的印象。Im very impressed with the scenery here.这里的景色给我留下了深刻的印象。The scener

13、y here is strongly impressed on my mind.这里的景色深深地印在我脑海中。12345归纳impress的常用搭配impress sb.with.用/因给某人留下深刻印象 sb.be impressed with sth./sth.be impressed on sb.某物给某人留下深刻印象(2)阅读下面的句子,体会impressive的含义。The view from the other side is even more impressive.从另一侧看到的风景更令人印象深刻。含义:给人留下深刻印象的12345123453.But a lot of peo

14、ple think that solar cars are too slow or not very reliable.但是许多人认为太阳能汽车太慢了,或者不太可靠。考点reliable adj.可靠的He wants to find a reliable person to help him with his work.他想找一个可靠的人帮他工作上的忙。I have been convinced that the print media are usually more accurate and more reliable than television.我一直认为,纸质媒体通常比电视更精确

15、,也更可靠。考点延伸反义词:unreliable adj.不可靠的,靠不住的Dont ask Janeshes too unreliable.别问简她太不可靠了。The cars unreliable in wet weather.这辆车在潮湿的天气里不可靠。12345123454.Shell appreciate it.她会喜欢的。考点appreciate vt.欣赏,鉴赏【高考典句】(2017全国高考)Now,I appreciate the silence and the new way of communication it opens.现在我很欣赏沉默,以及沉默带来的新的沟通方式。I

16、m not an expert,but I appreciate fine works of art.我不是专家,但我对好的艺术作品有鉴赏力。归纳appreciate的本义为“评价”,因而作“欣赏”讲时是指对事物有深入的了解并能鉴赏。12345考点延伸(1)appreciate还常表示“感谢,感激”I appreciate the help you have given me.我对你所给予的帮助表示感谢。I would appreciate your keeping it a secret.=I would appreciate it if you keep it a secret.要是你能保

17、守秘密,我将感激不尽。If you could give me directions,I would appreciate it.如果你告诉我怎么走,我会非常感激。归纳表示“对表示感谢”时,appreciate后通常接名词或动词-ing,动词-ing形式前可用物主代词表示其逻辑主语;不接动词不定式或从句,但可以接it if/when.句型。12345(2)派生词:appreciation n.欣赏,感激She shows little appreciation of good music.她对好音乐几乎没有欣赏的能力。Please accept this gift in appreciatio

18、n of all youve done for us.承蒙鼎力相助,不胜感激。谨备薄礼,敬请笑纳。12345123455.语法:现在完成进行时与现在完成时的比较考点一 两种时态偶尔可互换使用,含义基本相同。例如:I have been working here for five years.=I have worked here for five years.我在这里已经工作5年了。They have been living in this city for ten years.=They have lived in this city for ten years.他们在这个城市已经住了10年

19、了。12345考点二多数情况下两种时态不可换用。在表示“从过去开始一直持续到现在”这个概念时,现在完成进行时多用于口语。如果侧重动作的结果,多用现在完成时;如果侧重动作的延续性或者动作仍然继续下去时,由于现在完成进行时还带有进行时的持续性、暂时性和未完成性,这时宜采用现在完成进行时。例如:I have read this book.我读过这本书。(动作已经完成)Ive been reading this book.我一直在读这本书。(动作还将继续下去)考点三表示状态的动词(如love,like,hate,know等)不能用于现在完成进行时。我认识他已经好几年了。I have known him for years.(正)I have been knowing him for years.(误)12345123451234512345