高中英语人教版 (新课标)必修3&4Unit 4 Astronomy: the science of the stars教学课件ppt

这是一份高中英语人教版 (新课标)必修3&4Unit 4 Astronomy: the science of the stars教学课件ppt，共45页。PPT课件主要包含了Lead-in，New words，Let’s play，看谁答的快又准，otherwise，Lack，recycle，beyond，current，sufficient等内容，欢迎下载使用。

What Pwers a Spacecraft?
Spacecraft have instruments t help them take pictures and cllect infrmatin in space. But they need electricity t pwer thse instruments and send the infrmatin back t Earth. Where des the pwer cme frm?
A spacecraft generally gets its energy frm at least ne f three pwer surces: the Sun, batteries r unstable atms. T chse the best type f pwer fr a spacecraft, engineers cnsider where it is traveling, what it plans t d there and hw lng it will need t wrk.
Hw many “t” in the text?D yu knw their meanings and functins?
They charged the accident t the lack f experience.
Please call befre yu cme, therwise we might nt be hme.
r elsedifferentlyin ther ways
nt have sth.nt have enugh f sth.
It ges beynd ur research.
These materials can be recycled int ther packaging prducts.
Current success des nt mean success in the future.
save fr reuseuse again differentlyreuse sth.
pastexceptimpssible fr
existing nwvalidflw f water r air
We have prvided sufficient infrmatin t yu n this issue.
Let them figure ut the answer withut yu.
wrk sth. utdecide
1.Be mdest, _________ yu will lag behind. 2._______ f fd and supplies caused disaffectin amng the sldiers.3.They _________ empty tins s as t use the metal. 4.The cntents g far _______ the title. 5.Even thugh they are a step in the right directin, ur_______ prcesses are nt enugh. 6.They had n evidence _________ t hld him.7.Father is trying t figure ______ his tax.
Let’s learn
Lk at the fllwing sentences and fcus n the italicized infinitives. In pairs, discuss their functins and meanings.
I trained fr a lng time t fly airplanes as a fighter pilt.As we all knw, an astrnaut needs t be healthy and calm in rder t wrk in space.First f all, yu must be intelligent enugh t get a related cllege degree.Sme scientists were determined t help humans realize their dream t explre space.On 12 April 1961, Yuri Gagarin became the first persn in the wrld t g int space.
Rewrite the sentences using infinitives r “in rder t/s as t + d”. Change the italicized parts accrdingly.
In 2003 Yuri Malenchenk became the first persn wh gt married in space.In 2003 Yuri Malenchenk became the first persn t get married in space.2. In space, astrnauts cllect all dirty water s that it can be recycled fr later use.In space, astrnauts cllect all dirty water s as t recycle fr later use.
3. Mankind has always been curius abut the universe and many peple, have dreamt that ne day they wuld fly int space.
Mankind has always been curius abut the universe and many peple t dream that ne day they wuld fly int space.
4. Astrnauts’ bnes and muscles can get very weak in space due t the lack f gravity, s they need t exercise every day, which will help them stay healthy.
Astrnauts’ bnes and muscles can get very weak in space due t the lack f gravity, s they need t exercise every day in rder t help them stay healthy.
5. Astrnauts have t use tape t stick everything dwn while wrking in space because everything wuld flat ff therwise.
Astrnauts have t use tape t stick everything dwn t wrk in space because everything wuld flat ff therwise.
6. During a spacewalk, astrnauts have t mve slwly s that they can keep their bdies under cntrl.
During a spacewalk, astrnauts have t mve slwly s as t keep their bdies under cntrl.
Cmplete the passage with the crrect frms f the verbs in brackets.
Sending peple t ther planets r even beynd the slar system is nt an easy gal _________(achieve). One f the prblems is that the trip wuld take ver tw years _________(get) t the clsest planet, Mars, and back. Althugh light is the fastest thing _________(knw) in the universe, it culd take mre than fur years t reach the nearest star system. Will scientists figure ut a way _________(stre) sufficient fd and water fr the lng jurney?
Is it pssible t travel faster than light? N ne knws the answers yet. Hwever, space scientists never give up. They are experimenting with grwing crps in space s as _______(help) astrnauts get enugh fd n lnger jurneys thrugh space.
Infinitives
The driver failed ________(see) the ther car in time.He feels it his duty _________(help) the pr.It is difficult fr us _________(finish) writing the cmpsitin in a quarter f an hur.It's a great hnr ___________(invite) t Mary's birthday party.There is nthing _______(d) nw.
t be invited
the first Chinese astrnaut t g int space.
1. Q: Why is Yang Liwei famus in China?A: Because he is __________________________________________________（第一个进入太空的中国宇航员）
t lng and t bring t finish.
2. Q: Hw d yu feel abut the film 2001: A Space Odssey?A: I’m afraid the film is __________________________________________________（太长太乏味而无法看完）
n lnger t be safe t live.
3. Q: Why was the Russian space statin Mir(和平空间号) brught dwn ut f rbit?A: One f the reasns is that Mir was t ld and __________________________________________________（不再是安全的居所）
the first Chinese t step nt Mars.
4. Q: Wuld yu like t travel int space ne day?A: Yes, and I want t becme __________________________________________________（登录火星的第一个中国人）
t cmplex t explain in a few wrds.
5. Q: Culd yu prvide a simple intrductin t hw space rckets wrk?A: I’m afraid the whle prcess is __________________________________________________（太复杂了，无法用几句话解释清楚）
Share yur ideas and yur life with yur patterner!
Share yur idea!
EXAMPLE:I think _____________ is t difficult/easy/cmplex/interesting t __________.I think _____________ enugh t ___________________.I hpe scientists will invent a _________________ t ________________.I think we need t find a ____________ t _________________.I ________________________s as t ________________.
1. recycle vt.回收利用；再利用recycle bin 回收站internal recycle 内部循环
Language pints
塑料袋每年会导致100,000海洋动物死亡，因为这些动物常常把塑料袋误当食物吞下去，因此，如果你一定要用塑料袋，一定要在超市垃圾箱回收塑料袋。
Plastic bags cause the deaths f 100, 000 Marine animals each year when the animals mistake them fr fd, s if yu must use them, always recycle them in the bin at yur supermarket.
2. lack n.缺乏；短缺 vt.没有；缺乏fr lack f have n lack flack sth. lack f faith
The flwers failed fr lack _______ rain.Lack _______ sleep blunted her thinking.They _______ the frce f cnvictin.
3. therwise adv.否则；要不然r therwisetherwise thanand therwise
Only by saving will yu have mney in the bank _____ therwise invested.I knw him therwise _____ in business. In the kindergarten, the children learn singing, dancing, drawing _____ therwise.
无法达到；超出…的能力之外
4.beynd prep.在更远处；超出
beynd all reasnbeynd cntrlbeynd dubtbeynd the reach fbeynd wrdsbeynd challengebeynd expectatinbeynd the scpe f
老师教我们超越我们原以为只能够到达的地方。
The teacher teaches us t push beynd where we thught we culd g.Yu cannt judge any man beynd yur knwledge f him, and hw small is yur knwledge.
你判断一个人不可能超过你对他的了解，而你的了解又是多么肤浅。
current adj.当前的；现在的 n.水流；电流；思潮
air currentascending air currentbattery currentcurrent asset
在这个系统中，当前不存在任何瓶颈。
There are n current bttlenecks at all n this system.
6.sufficient adj.足够的，充足的
be sufficient frmre than sufficientsufficient sleepingnecessary and sufficient cnditin
一般说来，5天的课堂培训对于一个已熟悉企业开发环境的应用程序开发者来讲是足够的。
Typically, five days f classrm training is sufficient fr applicatin develpers wh are already familiar with enterprise applicatin develpment.
你们将不得不和越来越多的精神疾病以及其他各种各样的问题作斗争。
Yu will have t deal with higher rates f mental illness and every ther kind f prblem.He isn’t a mental patient but he is always mental hspital, because he is a dctr.
他不是一名精神病人但他经常在精神病医院，因为他是一名医生。
7.figure ut 弄懂；弄清楚；弄明白
Maybe we'll figure _______ hw t d smething different.
figure nfigure frfigure in
1.The space shuttle(航天飞机) was created as a reusable launch vehicle _________astrnauts and ther equipment int space and back again. The shuttle lks like an rdinary plane but it has a carg bay(货仓) that is large enugh _________ a prbes(航天探测器) are ften sent t places that are t far away r t dangerus fr a human ________ ft in. Fr example, in 1977, the Vyager I space prbe was sent _______ pictures f the planets Saturn and Jupiter.
3.The Internatinal Space Statin was t big _________ n Earth and _________ int space, s different cuntries wrked tgether and built abut 100 mdules(分离舱). Afterwards, these mdules were jined tgether in space _________ living quarters, labratries, and ther equipment fr astrnauts _________ fr mnths.
4.As the first wman _____________ t make a trip int space, Tereshkva felt lucky and prud. When the great day finally came, she was almst t excited _________ asleep!
t be selected