2021学年Unit 4 Space Exploration教课课件ppt
展开T learn the grammar: the use f infinitives as attributes and adverbials.T make sentences using infinitives.T describe space facts and effrts t explre space.
Discuss and tell the functins f t d.
1. Peple have always wanted t learn mre abut space.2. China wanted Chang'e 4 t explre the surface f the far side f the mn.
1. Yu must be intelligent enugh t get a related cllege degree.2. Scientists wrk hard t find answer.3. We were surprised t find that he had left.4. Yuri Gagarin became the first persn in the wrld t g int space. 5. Sme scientists were determined t help human realize their dream t explre space.
一、不定式作定语1. 有些名词后面常接不定式作定语,如ability, chance, desire, decisin, effrt, intentin, need, pprtunity, plan, prmise, pressure, right, time, way等。如: After mnths f unemplyment, all he asked fr was a chance t earn his bread.
2. 被nly, last, next以及序数词或形容词最高级修饰的名词常用不定式作定语。如: The nine-year-ld by was the nly ne t have survived the crash.
二、不定式作状语1. “主语 + be + adj. + t d sth.”结构中,不定式常作原因状语,此类形容词有happy, srry, glad, excited, disappinted, shcked, satisfied, astnished等。如: They were glad t see their sn taken gd care f in the kindergarten.
2. 不定式还常用在t ... t结构、enugh及nly等后面作状语,表示结果。如: The bx is t small t hld all these things. I walked all the way frm hme t the library, nly t find it clsed.
3. 不定式作目的状语既可放在句首也可放在句尾,不定式前可加in rder或s as。如: He had t earn enugh mney t supprt the family. In rder t master English, yu must spend much effrt n it.
【语境应用】选出可以填入空白处的最佳选项。1. It remains _____ whether Jim will be fit enugh t play in the finals. A. seen B. t be seen C. seeing D. t see2. _____ the prject as planned, we’ll have t wrk tw mre hurs a day. A. Cmpleting B. Cmplete C. Cmpleted D. T cmplete3. If there’s a lt f wrk _____, I’m happy t just keep n until it is finished. A. t d B. t be ding C. dne D. ding
1. Chinese researchers hpe t use the instruments n bard Chang’e-4 ________ (find) and study areas f the Suth Ple-Aitken basin. (2020新课标全国I)
2. Agriculture gave peple their first experience f the pwer f technlgy _________ (change) lives. (2020浙江)
Lk at the fllwing sentences and fcus n the italicized red infinitives. In pairs, discuss their functins and meanings. Find mre examples frm the unit.
1. I trained fr a lng time t fly airplanes as a fighter pilt.2. As we all knw, an astrnaut needs t be healthy and calm in rder t wrk in space.3. First f all, yu must be intelligent enugh t get a related cllege degree.4. Sme scientists were determined t help humans realize their dream t explre space.5. On 12 April 1961, Yuri Gagarin became the first persn in the wrld t g int space.
Other sentences frm the unit include:…and scientists wrk hard t find answers. (adverbial)They make vehicles t carry brave peple int space t find ut the secrets f the universe. (attribute; adverbial) Fr example, America’s NASA space agency launched Vyager 1n 5 September 1977 t study deep space… (adverbial)These disasters made everyne sad and disappinted, but the desire t explre the universe never died. (attribute)China became the third cuntry in the wrld t independently send humans int space in 2003… (attribute)
Rewrite the sentences using infinitives r “in rder t/s as t + d”. Change the italicized parts accrdingly.
1. 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 it 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 have the dream t fly int space ne day.
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.
n. 肌肉;实力;影响力
Astrnauts' bnes and muscles can get very weak in space due t the lack f gravity, s they need t exercise every day t / in rder t / s as t stay healthy.
5. Astrnauts have t use tapes t stick everything dwn while wrking in space because everything wuld flat ff therwise.
Astrnauts have t use tapes t stick everything dwn while wrking in space t / in rder t/ s as t keep everything frm flating ff.
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 t / in rder t / 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 a very lng time. Fr example, _________ (use) the current technlgy, it 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.
1. In space, astrnauts cllect all dirty water s as t recycle it fr later use. s as t (d sth.) in rder t 为了,以便 eg I always keep fruit in the fridge s as t keep insects ff it. (翻译) 我总是把水果放在冰箱里,以防虫子。
recycle vt. t put used bjects r materials thrugh a special prcess s that they can be used again 再利用,回收利用eg We take all ur bttles t be recycled. (翻译) 我们把我们所有的瓶子都回收利用。
2. Astrnauts’ bnes and muscles can get very weak in space due t the lack f gravity… lack n. when there is nt enugh f smething, r nne f it 缺乏;短缺 vt. t nt have smething that yu need, r nt have enugh f it 没有; 缺乏eg Her nly prblem is lack f cnfidence. Alex's real prblem is that he lacks cnfidence. (翻译) 她唯一的问题是缺乏自信。 Alex的真正问题是他缺乏信心。
3. Astrnauts have t use tapes t stick everything dwn while wrking in space because everything wuld flat ff therwise. therwise adv. used when saying what bad thing will happen if smething is nt dne 否则,要不然 eg Put yur cat n, therwise yu’ll get cld. (翻译) 穿上外套,不然你会感冒的。
4. Sending peple t ther planets r even beynd the slar system… beynd prep. further away in the distance (than smething) 在更远处;超出 eg In the distance, beynd the river, was a small twn. (翻译) 在河对岸的远处有一座小镇。
5. …the current technlgy… current adj. happening r existing nw 现在的,当前的 eg The current situatin is very different t that in 1990. (翻译) 当前的形势与1990年截然不同。
6. Will scientists figure ut a way t stre sufficient fd and water fr the lng jurney? figure ut: t think abut a prblem r situatin until yu find the answer r understand what has happened 弄懂;弄清楚;弄明白 eg Can yu figure ut hw t d it? (翻译) 你能想出怎么做吗?
sufficient adj. as much as is needed fr a particular purpse 足够的;充足的eg We need sufficient time t deal with the prblem. (翻译) 我们需要足够的时间来处理这个问题。
Review the grammar in this lessn. Use the infinitives as the attribute and the adverbial t describe space facts and effrts t explre space (at least 5 sentences).
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