2023學(xué)年完整公開課版Unit2 Learning About Language 優(yōu)質(zhì)課件（二）

Healthylifestyle——LearningAboutLanguageDiscoverusefulstructuresLeadin1Tochangebadhabits

isnevereasy.TheInfinitiveisthesubjectofthesentence!TheInfinitiveistherealsubjectofthesentence!

Ittookextratimetodothejobproperly.TojointhePeople’sLiberationArmy,it

isrequiredformentoshaveofftheirbeards.Itwasnotpolitetodisturbyourneighborswithloudmusiclastnight.432GrammarBasicstrategy:

Addtense時(shí)態(tài)andvoice語態(tài)

into“todo”structure!Whatformsdoesinfinitivehave?infinitive:一般時(shí)“do”主動(dòng):todo被動(dòng):tobedoneinfinitive:進(jìn)行時(shí)“bedoing”123主動(dòng):tobedoing

infinitive:完成時(shí)“havedone”主動(dòng):tohavedone被動(dòng):tohavebeendoneGrammarTodoBe的單數(shù)形式Infinitiveasthesubjectofthesentence:

不定式作主語Example

1:Tohelpothersis

ourduty.主語系動(dòng)詞:表語Example

2:Togetgoodgradesrequires

alotofhardwork.Todo主語謂語動(dòng)詞單數(shù)形式賓語Part1Infinitiveastherealsubjectofthesentence:

Grammar_________(help)othersisourduty.TohelpIt

is

ourdutytohelpothers.形式主語It系動(dòng)詞Be的單數(shù)形式表語真正主語TodoPart2It(形式主語)~todo（真正主語）GrammarInfinitiveastherealsubjectofthesentence:

不定式作真正主語，it做形式主語的常見結(jié)構(gòu)Itis+adj.+(forsb)todo形容事物（修飾事物的形容詞）(adj:easy,difficult,comfortable,pleasant,light,heavy,dangerous，tiresome,interesting,fit)ItisimportantforeveryonetolearnEnglishwellinourrapidlydevelopingworld.Itis+adj.+(ofsb)todo形容人（修飾人品形容詞）(adj:kind,good,nice,wise,unwise,clever,silly,stupid,foolish,careless,rude,polite,naughty)Itisniceofyoutogivemesuchadvice.Part2GrammarItis+n.+todosth.(anhonour,ourduty,apity,ashame)Itisanhonourtobeinvitedtocontributetoyourmagazine.Ittakes/tooksbsometimetodosth.

Ittakesmequitealongtimetounderstandthemeaningofthepainting.Part2ExerciseItisimportanttoavoidpassivecigarettesmoking.important/avoid/passivecigarettesmokinguseful/turnto/fitnessconsultant/foradviceItwilltakeanutritionspecialistanhourtomakeabalanceddietmenuforyou.willtake/nutritionspecialist/abalanceddietmenu/make/anhour/foryou.Itisusefultoturntoafitnessconsultantforadvice.illegal/dangerous/take/drugsItisillegalanddangeroustotakedrugs.harmful/often/skip/breakfastItisharmfultooftenskipbreakfast.Jointhewordstomakefullsentencesusingtheinfinitive.Summary單個(gè)不定式作主語，謂語動(dòng)詞________________第三人稱單數(shù)不定式作主語時(shí),可以用it作___________形式主語如果要說明不定式表示的動(dòng)作是誰做的，可以在不定式前加一個(gè)由for/of引起的短語,構(gòu)成___________________不定式的復(fù)合結(jié)構(gòu)Itis+adj.+forsbtodo……（修飾事物的形容詞）(adj.:easy,difficult,comfortable,pleasant,light,dangerous，tiresome,interesting,heavy,fit)

Itis+adi+ofsb

to

do.....(修飾人品形容詞)(adj.：kind,good,nice,wise,unwise,clever,silly,stupi