人教版 (2019)选择性必修 第四册Unit 3 Sea Exploration评优课课件ppt

这是一份人教版 (2019)选择性必修 第四册Unit 3 Sea Exploration评优课课件ppt，共24页。PPT课件主要包含了宾语补足语，定语定语，动词不定式的构成，not to do，时态和语态，作主语，作表语，作宾语，作宾语补足语，作定语等内容，欢迎下载使用。

1. T cmplete the great map f the wrld was a strng passin fr the peple f early civilisatins. 2. Marc Pl’s tales inspired Eurpean explrers t search fr sea rutes frm west t east. 3. Merchants frm China and many ther places met t negtiate trade deals. 4. T reach ut acrss the sea remains a strng desire tday. 5. The aim f this initiative is t encurage cperatin and trade acrss the histric Silk Rad areas.
Read the fllwing sentences and analyze what functins the clred part serves as in each sentence.
6. This will help t greatly develp the whle area fr the benefit f future trade and cultural exchange. 7. There are still many ther places left t explre. 8. China has jined ther natins n several expeditins t explre the Arctic. 9. There is an urgent need t study the Arctic in rder t understand climate change and its effects. 10. The need t trade and the desire t enhance relatinships will drive China t reach ut acrss the sea far int the future.
基本形式：t d否定形式:
t have been dne
t have been ding
1. t d 表示的动作通常与谓语动词的动作 _______ 发生或 在其 _______ 发生。
① He seemed t be unhappy.② I am eager t see yu again.
1. 一般式：t d / t be dne
2. 进行式：t be ding
① He seems t be reading English pems.② He seems t be thinking deeply, withut nticing me verpassing him.
2. t be ding 强调动作正在进行，或与谓语动词动作________。
3. 完成式：t have dne / t have been dne
① He is said t have translated the bk int English last year. ② He claimed t have been badly treated in the supermarket when he was ding shpping yesterday.
3. t have dne 表示的动作在谓语动词 ________发生。
4. 完成进行式：t have been ding
① Her sn is knwn t have been studying abrad fr a while.② She is said t have been writing the nvel abut New Yrk fr many years.
4. t have been ding 表示在谓语动词 _____________________。
1. 不定式做主语时，可以直接放在谓语动词之前。
T see is t believe．Nt t get there in time is yur fault.
注：常用it作形式主语，将t d放在谓语之后，使句子保持平衡。
句型1：It + 谓语 + t d句型2：It’s + n + t d
It takes us an hur _______ (get) there by bus.
It is a great enjyment _________ (spend) ur hliday in the muntains.
1. It is very kind ___ yu t give me sme help.2. It’s implite ___ yu t speak t the teacher like that.
句型3：It is adj fr / f sb t d sth It is + adj + fr sb t d sthIt is + adj + f sb t d sth
1. It is easy ______ me t finish this wrk befre ten. 2. It is a great hnr _______ us t be present at yur birthday party.
＝ Yu are very kind t give me sme help.　
＝ Yu are implite t speak t the teacher like that.　
T d tw things at a time is _________ (d) neither. T see is _________ (believe). He is t marry Rse. He was abut ________ (enter) when he heard a cry.
1. 如果主语是不定式(表示条件)，表语也是_______(表示结果) (一致性)。
2. be t d, be abut t d 结构表示 时，系动词 be, appear, seem, prve后用 作 。
3. 如果主语内容是以aim, duty, hpe, idea, happiness, jb, plan, prblem, purpse, thing, wish等为中心的名词，不定式作表语对________的______作具体说明。
His wish is ________ (buy) a car in the near future. The mst imprtant thing is _______ (take) measures t prevent the pllutin.
常见动词有：want, decide, agree, wish, hpe, prmise, chse, need
I want t knw this matter.I dn’t expect t meet yu here.
1. They wanted _______ (get) n the bus, didn’t they?2. He said he wished _______ (be) a prfessr.3. I agreed ________ (g) there with the dctr.4. My daughter preferred _______ (dance) when she was in her twenties.5. He had prmised ________ (give) me a hand.
口诀: 想要决定同意，希望许诺选择需要
注意句型：it作形式宾语，如：find it + adj + t d
I find / feel t wrk with him interesting．I find / feel ____ interesting t wrk with him.
注意：不定式短语作宾语时，如果还带有宾语补足语，往往把不定式宾语放在宾语补足语 ，而用it作 。
主语 + find / think / feel / make / cnsider it + adj / n + t d sth
1.We thught __ better ______  (start) early. 2. D yu cnsider ___ better nt _____ (g)?3. I feel __ my duty ________ (change) all that. 4. We think __ imprtant __________ (bey) the law.5. I knw __ impssible ________ (finish) s much hmewrk in a day.
宾语与宾语补足语之间的关系实际上是逻辑上的 。
1. Mther tld me _____ cme back befre 10 ’clck. 2. I’ll get smene ________ (repair) the recrder . 3. What caused him _________ (change) his mind? 4. I wish yu _______ (cme) as sn as pssible. 5. He asked me _______ (d) the wrk with him.
带t和不带t 的不定式
I want t g t the mvies with yu.Dn’t frget t turn ff the light befre yu leave.
能直接跟带t的动词不定式结构的动词主要有ask，tell，hpe，wish，learn，decide，want，frget，lve，stp等。
2.省略t的动词不定式
这些词在变为被动语态时，t不能省略，此时不定式作主语补足语。He is ften heard t sing the sng. 他经常被人听见唱这首歌。
I felt the earth shake at that mment. I ften hear him sing the sng.
[巧学助记]不带t的不定式作宾语补足语一感：feel二听：hear，listen t三让：let，have，make四看：bserve，see，watch，ntice
在feel，hear，listen t，make，let，have，see，lk at，watch，ntice，bserve等使役动词和感官动词(短语)后，动词不定式作宾语补足语时常省略t。
不定式作定语时一般修饰________________。
1. I wrked s late in the ffice last night that I hardly had time t catch the last bus. 2. D yu want t see the dctr t be sent fr frm Beijing?3. The meeting _____________ (hld) tmrrw is very imprtant.
eg. I have smething t tell yu.
1. I came here t see yu．2. We were very excited t hear the news．3. He hurried t the schl nly t find nbdy there. 4. T lk at him, yu wuld like him．
不定式作状语，表示 等
目的、原因、结果或条件
1. It is pssible (walk) r bike the entire 14 kilmeters. 2. Activities there range frm whale watching t hiking and accmmdatins aim (have) a lw impact n the natural envirnment. 3. Much f this increase can be due t climate change. The findings shw a critical need (invest) in disaster preventin. 4. Mary became a baker at age 14, because her grandfather paid the lcal baker ________ (teach) her all the skills.
Fill in the blanks with the crrect frm.
5. Yu are said ____________________ (write) a new nvel these years. Have yu finished it? 6. She was very busy and had n time _________ (visit) her friends. 7. The market was nisy, s the man had t speak ludly in rder ____________ (hear). 8. She pretended _______________ (knw) me befre and greeted me warmly. 9. The flu is believed ____________ (cause) by viruses that like t reprduce in the cells inside the human nse and thrat. 10. The ld lady was heard ____________ (unlck) the dr and g ut.
t have been writing
t have knwn
t be caused
Far ut in the cean, where the water is as clear as glass, lives the Sea King. The cean is t deep ___________ (measure). We may imagine there is nthing except yellw sand under the sea, but actually it is nt rare ___________ (see) the mst unique flwers and plants __________ (dance) in the fast-mving water. In the deepest spt f all stands the Sea King’s castle, which has walls f cral and a rf ___________ (frm) f beautiful shells. The mther f the king, a wise wman wh is prud ___________ (be) brn int the ryal family, takes care f his six daughters. Amng the six sea-princesses, the yungest is the prettiest.
Read the beginning f The Little Mermaid and use the prper frms f the verbs in brackets t fill in the blanks.
t have been
Althugh she has delicate skin like a rse-leaf and eyes as blue as the deepest sea, she has n feet but a fish tail just like her sisters. The mst cmmn way fr the princesses __________ (play) all day lng is ________________ (swim) in the halls f the castle r amng the flwers grwing ut f the walls, feeding and tuching the fish __________ (swim) up t their hands thrugh the windws. They seem __________ (nt wrry) abut anything, except fr the yungest, wh …
swimming / t swim