Unit2SectionAGrammar4a-4c课件人教版英语八年级下册.pptx

;;Maryisabooklover.Shecouldreadbyherself

_________offour.Lastyear,shedecided________foravolunteerafter-school_______program.Marystillworksthereonceaweek______kids_______read.Volunteeringhereisadreamcometrueforher.Shecanwhatshe___________andhelpsothersatthesametime.;cleanup;comeupwith;;3.Ourclassistryingto____________

someideasto_______sickchildren

becausetheyareoftensad.

4.Wedecidedto______signsaround

theschooland________noticestotellstudentsaboutthebooksale.Wewill_______themoneyfromthesaletohomelesspeople.;

Idliketohelphomelesspeople.;常见形式：主语+谓语+todo

不定式常出现在一些及物动词后，构成动词短语。

如：wanttodo,plantodo,agreetodo,learntodo等

Wewanttogoswimming.我们想去游泳。;常见形式：主语+谓语+（宾语）+（状语）+todo

动词不定式可表示某一动作或状态的目的。

Hewillgotothestationtomeethisfriends.?

他将去车站见他的朋友。

Shegotupveryearlytocatchtheearlybus.

她起得很早，为的是赶上早班车。;常见形式：主语+谓语动词+sb.+todo

常接不定式作宾语补足语的词有tell,ask,want,teach,allow,promise,order,advise,expect,wish,invite,encourage等。

Sheinvitedmetogototheconcert.

她邀请我去听演唱会。;常见形式：一般位于句首，谓语动词用单数。

为了避免句子“头重脚轻”，往往用it代替不定式作形式主语，而将不定式放在后面作真正的主语。

TolearnEnglishwellisveryimportant.

＝ItisveryimportanttolearnEnglishwell.

学好英语很重要。;常见形式：Myjob/dream/goal/aimis…

Myjobistolookafterpatients.

我的工作就是照顾病人。

Hisaimistostudyabroadinthenearfuture．

他的梦想是在不久的将来出国学习。;常见形式：不定式作定语应放于被修饰词之后。

Doyouhaveanythingtodotonight?

你今晚有什么事要做吗？

Iwanttohavesomethingtoeat.

我想吃点东西。;

;;;tohelpthesepeopleisagoodway________ourfreetime.Forexample,wecanmakeplans______sickchildreninthehospitalorraisemoneyforhomelesspeople.Somepeopleevenstopdoingtheirjobsforafewmonthstoayear_______toanotherplace,likeoneofthecountriesinAfrica,andhelppeoplethere.;;3.I’mverybusybutIcouldhelp____________

__________________________