人教新課標(biāo)英語選修7-Unit-2-Robots課件

Unit2GrammarRevisethePassiveVoice(Infinitive)TofindoutthepassiveinfinitiveinthereadingpassageanduseitproperlyLookthroughthepassageSatisfactionGuaranteedagainandfindoutthesentencesusingtheinfinitive.動(dòng)詞不定式：todo不定式與其邏輯主語之間是主動(dòng)關(guān)系動(dòng)詞不定式的被動(dòng)式：tobedone不定式與其邏輯主語之間是被動(dòng)關(guān)系Englishbegan

tobespokeninmanyothercountries.(必修1)2.It’sagreatresponsibilitybutalsoagreathonourtobechosen.(必修2)3.Anyhowtheirperformanceswerehumorousenoughtobecopiedbyothergroups.(必修2)Lookatthefollowingsentences.Havealook4.Hedidnotwant

tobeattackedbytheChristianChurch,…(必修5)5.Thentherubbishwassenttobeburiedorburned,amIright?(必修5)6.Alltheinformationwasthenreadytobeprocessedintofilmnegatives.(必修5)7.Itmeansthatmoreheatenergytends

tobetrappedintheatmospherecausingtheglobaltemperaturetogoup.(選修6)1.Englishbegan____________(speak)inmanyothercountries.2.It’sagreatresponsibilitybutalsoagreathonour___________(choose).3.Anyhowtheirperformanceswerehumorousenough____________(copy)byothergroups.4.Hedidnotwant_____________(attack)bytheChristianChurch,…tobeattackedtobespokentobechosentobecopiedgoReady?5.Thentherubbishwassent__________(bury)or________(burn),amIright?6.Alltheinformationwasthenready_____________(process)intofilmnegatives.7.Itmeansthatmoreheatenergytends____________(trap)intheatmospherecausingtheglobaltemperaturetogoup.tobeburiedtobeprocessedtobetrappedburned以上我們已經(jīng)通過歸納總結(jié)和練習(xí)對本課的語法內(nèi)容有了一定的了解，下面就讓我們根據(jù)之前練習(xí)的考察情況進(jìn)一步選擇講解該語法項(xiàng)的重難點(diǎn)。不定式的時(shí)態(tài)和語態(tài)不定式有時(shí)態(tài)和語態(tài)的變化，時(shí)態(tài)共四種，即一般時(shí)、完成時(shí)、進(jìn)行時(shí)和完成進(jìn)行時(shí)。語態(tài)分為主動(dòng)語態(tài)和被動(dòng)語態(tài)，如下表所示。不定式的被動(dòng)式不定式主動(dòng)式被動(dòng)式一般式完成式進(jìn)行式/完成進(jìn)行式/todotobedonetohavedonetohave

beendonetobedoingtohave

beendoing不定式的形式變化1現(xiàn)在時(shí)：一般現(xiàn)在時(shí)表示的動(dòng)詞，有時(shí)與謂語動(dòng)詞表示的動(dòng)作同時(shí)發(fā)生，有時(shí)發(fā)生在謂語動(dòng)詞的動(dòng)作之后。

Heseemstoknowthis.Ihopetoseeyou

again.

=IhopethatI’llseeyouagain.

2完成時(shí)：表示的動(dòng)作發(fā)生在謂語動(dòng)詞表示的動(dòng)作之前。

I’msorrytohavegivenyousomuchtrouble.Heseemstohavecaughtacold.3進(jìn)行時(shí)：強(qiáng)調(diào)動(dòng)作已在延續(xù)或動(dòng)作正在進(jìn)行。

Theyseemtobegettingalongwellwiththeirnewjobs.Heseemstobeeatingsomething.4完成進(jìn)行時(shí)：表示動(dòng)作是在謂語動(dòng)詞所表示的動(dòng)作之前就一直在進(jìn)行。

Theyaresaidtohavebeencollectingstampsforovertwentyyears.Heappears

tohavebeenwaitingalongtime.不定式的被動(dòng)形式有下列用法:(1)

作主語Itisanhonourformetobeaskedtospeakhere.(2)

作賓語SheaskedtobesenttoworkinXinjiang.一、當(dāng)不定式的邏輯主語是不定式所表示的動(dòng)作的承受者時(shí)，不定式一般要采用被動(dòng)形式。(3)

構(gòu)成復(fù)合賓語Hewantedthelettertobetypedatonce.Shedidn’tlikeherselftobepraisedlikethat.(4)

構(gòu)成復(fù)合謂語Thebooksarenotallowedtobetakenoutoftheroom.(5)作定語Areyougoingtothemeetingtobeheldintheteachers’office?(6)作狀語Shewastooyoungtobeassignedsuchwork.二、不定式有時(shí)還可以有完成式的被動(dòng)式，在句中作主語、賓語、定語，或者構(gòu)成復(fù)合賓語、復(fù)合謂語等。Itisagoodthingforhimtohavebeencriticized.Shepreferredtohavebeengiven

heavierworktodo.(主語)(賓語)Hethoughtitanhonourto

havebeeninvitedtotheparty.

Thebookissaidtohavebeentranslatedintomanylanguages.

Shewasthefirstwomantohavebeenelectedtosuchapost.

(復(fù)合賓語)(復(fù)合謂語)(定語)三、不定式的主動(dòng)形式表示被動(dòng)1.在therebe結(jié)構(gòu)中。Thereisalotofhomeworktodo.(也可用tobedone)Thereisnotimetolose(tobelost).2.在“n.／pron+be+adj.+todo”結(jié)構(gòu)中。常用的形容詞有easy，difficult，hard，impossible，nice，pleasant，light，heavy，interesting，important，expensive，cheap，fit，dangerous等。Heishardtoconvince.3.在“too…todo;enough…to…”結(jié)構(gòu)中。Theproblemistoodifficulttoworkout(tobeworkedout).Thehouseisbigenoughtolivein.4.在“with+n.+todo”結(jié)構(gòu)中。Withnothingtodo,helayinbed.

Withsomanyexercisestodo,Ican’tgotothecinema.5.當(dāng)不定式的邏輯主語在句中出現(xiàn)時(shí)。

Ihavealettertotypetoday.Doyouhaveanythingtosay?(I是totype的邏輯主語)

(you是tosay的邏輯主語)6.當(dāng)不定式隱含在forsb.todo結(jié)構(gòu)中時(shí)。Thisisthebestbooktoread(=forus/youtoread).

Theimportantthingtodoislockthedoorwhenweleavethehouse.7.一些作表語用的不定式的主動(dòng)形式。常見的這類動(dòng)詞有l(wèi)et(出租),rent，hire,blame等。Thehouseistolet.

IfeltIwastoblame.動(dòng)詞不定式主動(dòng)語態(tài)形式的使用要比被動(dòng)語態(tài)形式的使用普遍，有時(shí)（尤其在口語中）雖然意思上是被動(dòng)的，也往往用主動(dòng)語態(tài)形式來表示。Ihavethreemotors

torepairtoday.Thetaskisdifficulttofinishontime.Review不定式的被動(dòng)式由“to+be+動(dòng)詞的過去分詞”構(gòu)成。當(dāng)不定式與其邏輯主語之間是被動(dòng)關(guān)系時(shí)，要用不定式的被動(dòng)式。1.Shehates

________________byherclassmates.2.Timrefused_________________byhisfathertoschool.3.Shestruggled_______________bytheFrenchvisitors.tobeaccompaniedtobeunderstoodI.Fillintheblanks.accompanyunderstandenvylaughedatdiscusstesttobelaughedat4.Thesearetheissues______________tomorrow.5.Thenewdrugis___________outon500patientsnextyear.6.Shewasverybeautifulbutshedidn’tlike___________byallthegirlsshemet.tobetestedtobeenviedtobediscussedaccompanyunderstandenvylaughedatdiscusstestLastTuesdayDanRobinsonreceivedaletterfromthelocalpolice.Intheletterhewasasked______(call)atthestation.Danwonderedwhyhe___________(want)bythepolice,buthewenttothestationyesterdayandnowheisnotworriedanymore.II.閱讀短文，按照句子結(jié)構(gòu)的