人教版 (2019)必修第三冊Unit 4 Space Exploration備課ppt課件-課件下載-教習(xí)網(wǎng)

Read and pay attentin t the wrds in red.
Step 1. Lead in
Tianwen-1 is China's first missin t land n Mars.
Yang Liwei thught little f his persnal life t fcus n his wrk.
Step 2. Presentatin
動詞不定式作定語和狀語
一、動詞不定式用作定語1. 動詞不定式作定語常放在名詞或不定代詞后面作后置定語, 表示尚未發(fā)生的動作。Let us give him smething t eat. 讓我們給他一些吃的東西。We have much hmewrk t d tnight. 今晚我們有很多作業(yè)要做。
2. 名詞前有first, last, next, nly等詞以及最高級修飾時, 其后要用動詞不定式。She was the first wman t win the gld medal in the Olympic Games. 她是第一個在奧運會中贏得金牌的女性。
3. 抽象名詞attempt, ability, chance, desire, determinatin, decisin, plan, way或不定代詞smething, nthing等后面常用不定式作后置定語。But Janis Adkins has the ability and desire t d useful wrk. 但是詹尼斯·阿德金斯有能力和愿望去做有用的工作。
4. 當(dāng)名詞與定語之間存在動賓關(guān)系時。I usually have a lt f meetings t attend. 我通常有很多會議要參加。She is a nice persn t wrk with. 她是一個很好的合作伙伴。
5. 當(dāng)名詞與定語之間存在主謂關(guān)系時。We must find a persn t d the jb. 我們必須找到一個人來做這項工作。We need smene t g and get a dctr. 我們需要有人去請醫(yī)生。
6. 當(dāng)名詞與定語有同位關(guān)系時。We gt the rder t leave the city. 我們接到了離開這個城市的命令。
【即學(xué)活用】語法填空(1) The airprt ______________(cmplete) next year will help prmte turism in this area. ?(2) D yu have anything _____(d) tnight? ?(3) The best way __________(imprve) yur English is t jin an English club. ?
t be cmpleted
二、動詞不定式在句中作狀語, 主要用來修飾動詞和形容詞, 也可用來修飾副詞。在句中, 不定式可作目的狀語、原因狀語、結(jié)果狀語、條件狀語等, 可表示目的、原因及結(jié)果等。1. 目的狀語, 置于句首或句末, 置于句首時常表示強(qiáng)調(diào)。為加強(qiáng)語氣, 常與in rder或s as 組成短語。
A grup f yung peple gt tgether t discuss this questin. 一群年輕人聚在一起討論這個問題。In rder t help him, we wuld d everything we can. 為了幫助他, 我們將盡我們所能。
不定式作目的狀語(1)不定式作目的狀語時, 其動作通常遲于謂語動詞的動作。I said that t encurage him. 我這么說是為了鼓勵他。
(2)置于句首時只用t d / in rder t d。如用于表示否定, in rder 或 s as不能省略, 用 in rder nt t d 或 s as nt t d形式。I walked quietly s as nt t disturb the baby. 我安靜地走路, 以免打擾嬰兒。
(3)不定式作目的狀語可轉(zhuǎn)換為 s that / in rder that 或 s. . . that . . . 引導(dǎo)的目的狀語從句。He wrked very hard t pass the exam. →He wrked s hard that he culd pass the exam. →He wrked hard s that/in rder that he culd pass the exam. 他非常努力以便能通過考試。
2. 原因狀語, 多見于“sb. +be+adj. +t d. . . ”結(jié)構(gòu)句中。I was very sad t hear the news. 聽到這個消息我很難過。
3. 結(jié)果狀語, 多見于“t. . . t”; “enugh t. . . ”; nly t d(表示意料之外的結(jié)果的發(fā)生); s/such. . . as t(意為“如此……以至于……”)結(jié)構(gòu)句中。 I’m t tired t d well. 我太累了做不好。He is ld enugh t g t schl . 他到上學(xué)的年齡了。
He rushed back, nly t find the bk missing. 他沖了回來, 卻發(fā)現(xiàn)書不見了。 She is s prud as t lk dwn upn thers. 她太驕傲了, 看不起別人。
4. 獨立動詞不定式多用作插入語, 表示說話人的心理狀態(tài)或?qū)κ虑榈目捶ā’d like t stay healthy, but t be hnest, I nly eat fd that tastes gd. 我想保持健康, 但說實話, 我只吃味道好的食物。
【名師點津】現(xiàn)在分詞與不定式作結(jié)果狀語的區(qū)別(1)動詞不定式作結(jié)果狀語強(qiáng)調(diào)的是一種意想不到的結(jié)果。Anxiusly, she tk the dress ut f the package and tried it n, nly t find it didn’t fit.
(2)現(xiàn)在分詞作結(jié)果狀語強(qiáng)調(diào)的是一種順承的, 必然造成的結(jié)果。His father passed away, leaving him a little mney.
【即學(xué)活用】語法填空(1) ___________(wrk ut) the difficult maths prblem, I have cnsulted Prfessr Russell several times. ?(2) ________(learn) mre abut Chinese culture, Jack has decided t take Chinese flk music as an elective curse. ?
(3)He hurried t the statin nly ______(find) the train had left. (4)(2018·全國卷Ⅱ)We travel n Day 2 t nrthern France ______(visit) the Wrld War Ⅰ battlefields. ?(5)(2018·全國卷Ⅲ) When the grillas and I frightened each ther, I was just glad ______(find) them alive. ?
(6)(2018·全國卷Ⅲ) Jin us _______(taste) a variety f fresh lcal fd and drinks. ?
(1)選出不定式作目的狀語的句子①We must d everything we can t help them.②He left，never t return.③T d a gd jb，we must have the right tls.④We jumped with jy t hear the news.⑤She was t yung t understand all that.⑥She studied very hard t get high grades.⑦M(jìn)any farmers fertilize their crps in rder t make them grw mre quickly.⑧We plant trees every year s as t prtect the sil n the hill.________________________________________________________________________
Step 3. Practice
一句多譯我們將召開會議來討論這種不健康的生活方式。①We’ll hld a meeting _____________________ the unhealthy lifestyle.②We’ll hld a meeting _____________________ the unhealthy lifestyle.③We’ll hld a meeting _____________________ the unhealthy lifestyle.④________________________ the unhealthy lifestyle，we’ll hld a meeting.⑤________________ the unhealthy lifestyle，we’ll hld a meeting.
in rder t discuss
s as t discuss
In rder t discuss
①We stayed in Beijing s that/in rder that we culd visit the Bird’s Nest.→We stayed in Beijing _____________________________ the Bird’s Nest.②We will d everything in rder that/s that they can live happily.→We will d everything _________________________.③We’ll hld a meeting fr yu t knw the prgramme.→We’ll hld a meeting ____________________ yu can knw the prgramme.
s as t/in rder t visit
fr them t live happily
in rder that
Wrk in grups.Tpic: Facts abut space explratinEg.
Step 4. Prductin