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1、,Unit 4Astronomy：the science of the stars,必修3,英语教学课件,自主回顾 自主排查区,考点研析 讲练互动区,话题写作 综合应用区,1_(n.)天文学2_(n.)系统；体系；制度3_(n.)学说；理论4_(n.)大气层；气氛5_(adj.)基本的；基础的6_(adv.)因此；于是7_(vt.(使)为难(n.)谜；难题8_(adj.)温和的；文雅的9_(vi.&vt.)碰撞；坠落10_(n.&vt.)拉(力)；拖；牵引力,astronomysystemtheory atmospherefundamentalthuspuzzlegentlecrashpull
2、,结束放映,返回导航页,11_(vi.&vt.)(使)浮动(n.)漂浮物12_(adj.)猛烈的；激烈的；强暴的 _(n.)暴力 _(adv.)暴力地；猛烈地13_(prep.)不同；不像 _(vt.)喜欢；(prep.)相像的 _(adj.)可能的14._(adj.)有害的 _(n.&v.)伤害 _(adj.)无害的15_(vi.)存在；生存 _(n.)存在；生存,floatviolentviolenceviolentlyunlikelikelikelyharmfulharmharmlessexistexistence,结束放映,返回导航页,语境应用,用所给词的适当形式填空,1There w
3、as a _ look on the little girls face because a _ problem _ her.(puzzle)2In face of_，people can act _if they feel threatened.(violence)3Playing computer games will not only do _to your physical health，but it is also _to your mental health.So there is no _in advising you to give it up.(harm)4Do you be
4、lieve the _ of ghosts？Perhaps they only _ in the minds of some people.(exist),puzzled,puzzling,puzzled,violence,violently,harmful,harm,harm,existence,exist,结束放映,返回导航页,1_阻止2_ 产生；分娩3_ 轮到某人；接着4_ 熟悉；掌握；理解5_ 密切注视；当心；提防6depend on _7in time _8lay eggs _9cheer up _10now that _11break out _,prevent.from.give
5、 birth to in ones turn get the hang of watch out,depend on in time lay eggs cheer up now that break out,结束放映,返回导航页,语境应用,选用以上短语填空,1I thought I was speaking English fairly well.Now Im not so sure._，boy.Anyway，Rome wasnt built in a day.2Please tell me when Mr Smith is arriving at the train station so t
6、hat I can pick him up_.3Once he has made up his mind，no one can_him_carrying out the plan.4At last the firefighters put out the fire in the supermarket，which _at ten this morning.5Youve made me suffer in the past，so now you，_，suffer again!6She bought a heavy curtain to_the light.,Cheer up,in time,pr
7、event from,in your turn,broke out,block out,结束放映,返回导航页,1What is even more important is that as the earth cooled down，water began to appear on its surface.,名师指津：what引导主语从句。,例句仿写：她告诉我，那个时候她需要的就是一些好运气。_at that time，she told me，was some good luck.,What was needed,结束放映,返回导航页,2The earth became so violent
8、that it was not clear whether the shape would last or not.,名师指津：whether.or not是否。,例句仿写：他们是否能够通过交流达成协议还不清楚。Its not clear _ they are able to arrive at an agreement through communication _.,whether,or not,结束放映,返回导航页,3But when I tried to step forward，I found I was carried twice as far as on the earth an
9、d fell over.,名师指津：“twice as形容词原级as”是倍数表达法之一。,例句仿写：新技术被引进后，这个工厂2015年生产的机器是去年的两倍。After the new technique was introduced，the factory produced _ last year.,twice as many machines in 2015 as,结束放映,返回导航页,4This produced a chain reaction，which made it possible for life to develop.,名师指津：句中的it是形式宾语，真正的宾语是不定式短语
10、to develop。,例句仿写：这个女孩懂三门外语，这使她更容易找到一份好工作。The girl knows three foreign languages，which _a good job.,makes it easier for her to find,结束放映,返回导航页,5“Oh，dear，”I cried，“walking does need a bit of practice now that gravity has changed.”,名师指津：now that“由于；既然”，引导原因状语从句，有时that可以省略。,例句仿写：既然你的工作已经完成了，你最好休息一下吧。_ y
11、our work，youd better have a rest.,Now that you have finished,结束放映,返回导航页,The earth was just a cloud of dust after the“Big Bang”The earth exploded loudly with fire and rock.They were in time 1._(produce)many things,2._were to make the earths atmosphere.As the earth cooled down，water began to appear 3.
12、_its surface.It allowed the earth to dissolve 4._(harm)gases.Then life began to develop.,to produce,which,on,harmful,结束放映,返回导航页,Small plants multiplied and filled the first oceans and seas with oxygen.This encouraged the 5._(develop)of early shellfish and fish.Land animals such as insects，reptiles a
13、nd dinosaurs 6._(appear)after green plants appeared.Small clever animals spread all 7._the earth.They are putting too much carbon dioxide into the atmosphere,8._prevents heat from escaping from the earth into space.9._life will continue on the earth for millions of years to come will depend on wheth
14、er this problem can 10._(solve),development,appeared,which,over,be solved,Whether,结束放映,返回导航页,Therefore，I couldnt spare enough time to write you back in time.,所以,我没有及时抽出足够的时间给你写回信。,in time,in time 及时;终于;总有一天,in no time _at no time _at a time _at one time _from time to time _at times _take ones time _
15、kill time _,立刻；马上绝不每次；一次曾经，一度有时；偶尔有时别着急；慢慢来消磨时间,扩展延伸,结束放映,返回导航页,At the same time,in time,At no time,where there is a will，there is a way,(用time短语填空),基础练习,(2015天津高考写作)_，we are going to bring along about five hundred books with us for your class._did they actually break the rules of the game.It was un
16、fair to punish them.Youll succeed _because you are always working hard.Youd better do one thing _，so that you can concentrate on it.,能力提升,(高考小作文),(2014山东高考写作)常言道，“有志者事竟成”，我们的努力迟早会有所回报。As a proverb saying goes，“_”Our efforts_.,at a time,will pay off in time,结束放映,返回导航页,harmn.,harmfuladj.,do/cause harm
17、 to sb=do sb.harm对某人有害,(1),(2),There is no harm in doing sth./It does no harm to do sth.做某事是个好主意(或没有坏处),(1),harmful adj.有害的,(2),be harmful to sb./sth.对某人/某物有害,harmful,结束放映,返回导航页,in,harmful,(单句语法填空),基础练习,If you want to solve the problem in this way，there is no harm _ calling him.As we all know，a bad
18、eating habit is _(harm)to ones health.,能力提升,(一句多译),众所周知，过量喝酒对你的身体有害。What is known to us is that drinking too much _.It is known to us that drinking too much _.,is harmful to your health,does harm to your health,结束放映,返回导航页,As is known to us，there exists a generation gap between the young and the old.
19、,There exists/existed.某地有；存在,众所周知，青年人和老年人之间存在着代沟。,exist,There exists/existed.某地有；存在,结束放映,返回导航页,existence,was an existing problem for a long time,exists existing,(单句语法填空),基础练习,As is known to us，China came into _(exist)as an independent country in 1949.There _a good way to solve the_problem in geograp
20、hy.(exist)You cant imagine what difficulty they have existing _the money he is earning.,能力提升,(一句多译),(2014北京高考写作)在我们学校自行车的存放是一个长久以来就存在的问题。The parking place for bikes _in our school.,on,exist是不及物动词，没有被动语态，也不用于进行时态。,结束放映,返回导航页,When it is in my turn，I am too excited to speak.,in turn依次；轮流；反之；反过来by turns
21、轮流；交替地take turns to do sth.轮流做某事It is ones turn to do sth.轮到某人做某事It turns/turned out that.结果,当轮到我时，我激动得都说不出话来了。,in ones turn轮到某人；接着,扩展延伸,结束放映,返回导航页,in turn,in turn creates more problems,it is your turn,(用turn短语填空),基础练习,Theory is based on practice and _serves practice.As far as I know,_to look after
22、the children.Class Three should be responsible for raising the red flag this week_.,能力提升,(句式升级),People try to avoid public transportation delays by using their own cars，and this_(反过来造成更多的问题)People try to avoid public transportation delays by using their own cars，_(定语从句),in its turn,which in turn cre
23、ates more problems,结束放映,返回导航页,写出下面pull短语的意义(1)pull through_(2)pull in_(3)pull out_(4)pull over_(5)pull up _,使从(受伤)中活下来;渡过难关,进站，靠岸,离站，拔出，恢复健康,(使)车辆停靠在路边,拔起；停车,They are pulling down those houses to make room for a new hotel.,扩展延伸,pull down 拆毁；摧毁,为了给新旅馆腾地，他们正在拆除那些房屋。,结束放映,返回导航页,pull through,The train h
24、aving pulled in,pulled out,(用pull短语填空),基础练习,Everyone was very concerned whether he would _or not.We waved as the train _of the station.,能力提升,(句式升级),The train _(已进站停靠)and the passengers are boarding in now._，the passengers are boarding it now.(独立主格结构),has pulled in,结束放映,返回导航页,I do hope she can cheer
25、up and accept the challenge of life bravely!,_,cheer up(使)高兴；(使)振奋；感到高兴；感到振奋,我真心希望她能振作起来，勇敢地接受生活的挑战！,_ 使某人振作起来_(比赛中)以喝彩声鼓励；为某人加油_ 为而欢呼_口语(用于祝酒)干杯！,cheer sb.up,cheer sb.on,cheer up,cheer for,Cheers!,扩展延伸,结束放映,返回导航页,to cheer,to be cheered,for,单句语法填空,When Im feeling sad，my mother tells me funny stories
26、 _(cheer)me up.Lets go to the football game and cheer _our favorite team.If they win the final tonight，the team are going to tour around the city_(cheer)by their enthusiastic supporters.,结束放映,返回导航页,But when I tried to step forward，I found I was carried twice as far as on the earth and fell over.,twi
27、ce as far as.是一种倍数的表示方法，意为“是的两倍远”，其中as far as.意为“远到”。,而当我试着向前迈步的时候，我发觉我被送出去很远，步子的跨度竟是在地球上的两倍，因而我摔倒了。,结束放映,返回导航页,Abe倍数asadj./adv.原级as B,The red ruler is three times as long as the yellow one.,Abe倍数adj./adv.比较级than B,The red ruler is three times the length of the yellow one.,倍数表达法,The red ruler is thr
28、ee times longer than the yellow one.,Abe倍数the名词(size/weight/length.)of B,这个红尺子是黄尺子的三倍长。,结束放映,返回导航页,three times bigger than,three times as large as,three times the size of,一句多译,据报道，最近发现了一颗行星，它几乎是地球的三倍大，人类有望能在上面生活。It is reported that a new planet has been discovered recently.Its almost _Earth，and hope
29、fully it can support human life.It is reported that a new planet has been discovered recently.Its almost _Earth，and hopefully it can support human life.It is reported that a new planet has been discovered recently.Its almost _Earth，and hopefully it can support human life.,结束放映,返回导航页,This produced a
30、chain reaction，which made it possible for life to develop.,这是“make it形容词/名词 to do sth.”句型。该句型中it为形式宾语，指代后面的不定式结构，形容词或名词为宾语补足语。,这就产生了一系列的反应，使得生命就可能发展了。,eg:People in the west make it a rule to buy Christmas presents for their relatives and friends.,在西方,人们常在圣诞节时购买礼物给亲属和朋友。,结束放映,返回导航页,makes it difficult
31、,句型转换,The present situation makes it is difficult for us to accomplish the task on time.The present situation _ _ _ for us to accomplish the task on time.,名师指津,it作形式宾语，除指代不定式结构外，还可指代that引导的宾语从句。,They made it clear to the public that they did an important and necessary job.,他们向公众表明：他们所做的工作重要且必不可少。,结束
32、放映,返回导航页,“Oh dear，”I cried，“walking does need a bit of practice now that gravity has changed.”,now that“既然；由于”，引导原因状语从句。在语义上相当于since，that在口语中可省略,“天哪,”我大声说,“重力改变了,看来走路也的确需要练一练了。”,结束放映,返回导航页,Now that youve got a chance,一句多译,你既然得到了一个机会，不妨充分利用它。_，you might as well make full use of it._，you might as well
33、 make full use of it.,(2015全国卷满分作文)Now that you are interested in traditional Chinese cultures，I thought this festival would be a worthwhile experience for you.,Since youve got a chance,既然你对中国传统文化感兴趣，我认为这个节日对你而言是个有价值的经历。,英译汉,结束放映,返回导航页,1I think its my turn _(drive)the kids to school this week.2Her _
34、(puzzle)look on her face suggested she didnt understand what I said.3Some boys are too crazy about playing games on the computer，which is very _(harm)to their health.4Last night，Mrs Green had a heart attack.But luckily，the doctor came_time to save her life.5It is strange that Mike should have killed
35、 his roommate last night!Yes.In the eyes of many people，Mike appears_(gently)and polite.,to drive,puzzled,harmful,in,gentle,结束放映,返回导航页,6Not all people are aware of the various effects of_(globe)warming on Earth.7It is none of your business_other people think about you.Believe in yourself.8He failed
36、in the exam and I didnt know how to cheer him_.9People hope that measures will be taken to prevent house prices _(rise)10The doctor thought_would be good for you to have a holiday.,global,what,up,rising,it,结束放映,返回导航页,1There is so much rain on the island that its annual rainfall reaches as many as si
37、xty inches._2The river is so polluted that every day we can see a lot of things being floating on the water._3If you put your heart into it，youll succeed on time._4As time going by，I began to realize what I did was wrong._ 5The problem of pollution is worth paying attention._6This is such interestin
38、g a film that I have seen it twice._,manymuch,去掉being,onin,AsWith或goingwent,attention后加to,suchso,结束放映,返回导航页,根据提示，完成下面的小作文并背诵成文。,1上个星期天，我家附近的一座大楼发生了一场大火灾。(a big fire broke out)2楼梯到处是烟雾，这使人们很难逃生。(make it difficult for people to escape)3一个正要生孩子的妇女被困在10楼。(be about to give birth)4幸好消防员及时赶到并尽最大的努力营救处于险境的人
39、们。(arrive in time)5依靠他们专业的知识，消防员很快就阻止了火势的蔓延。(depend on，prevent the fire from spreading)6从这个故事，我们知道我们能否杜绝火灾取决于我们是否有安全意识。(whether we have a sense of safety),结束放映,返回导航页,温馨提示:请点击相关栏目。,学 预习新知自解,讲 探究课堂互动,记 冷点自主拾遗,练 备考课时训练,Last Sunday，a big fire broke out in a building near my home and soon the stair was f
40、ull of smoke，which made it difficult for people to escape.A woman who was about to give birth was trapped on the 10th floor.Luckily，the firemen arrived in time and tried their best to save the people in danger.Depending on their professional knowledge，the firemen quickly prevented the fire from spreading but it was obvious that they had no way to save all people.From the story，we know that whether we can stop fire disasters depends on whether we have a sense of safety.,结束放映,返回导航页,
