人教版（2019） 必修第三册 Unit 4 Space Exploration Discovering Useful Structures课件（共29张）.pptx

;一、不定式的定义：;Definition;;Functions;Functions;

1.作___________:

例句：那样做是很幼稚的.

Toactlikethatischildish.

=Itischildishtoactlikethat

Tomakesuchamistakeisfoolish.

=________________________________________________;

2.作___________:

例句：

IwishtolearnEnglishwell.

Mankinddesiretofindoutthesecretsofuniverse.

IfinditdifficulttoworkwithTom.

;注意以下几组词的区别：

(1)rememberdoing/todo

(2)forgetdoing/todo

(3)meandoing/todo意味着……/打算做

(4)regretdoing/todo

(5)stopdoing/todo;

3.作___________:

例句：Fatherwillnotallowustoplayonthestreet.

Mybrotheraskedmetocleantheroomwithhim.

;Functions;;Functions;;;;不定式作定语，一般放在被修饰的名词、代词后面。例如：;Functions;1）不定式与所修饰的词是主谓关系.

Heistheonlypersontoknowthetruth.

Sheisalwaysthefirst(person)tocomeandthelasttoleave.

2）不定式与所修饰的词是动宾关系.

Wehavesomethingtodiscuss.

;

Ihavealotofclothes（wash）.

Ihavealotofclothes（wash）bymymother.;;Functions;Functions;Functions;1.目的状语;2.结果状语;Practice;Practice;Practice