a语法焦点单元您否阅读了金银岛unit8section 4C.pptx

八年级（下）

学练优八年级英语下（RJ）

教学课件

Unit8HaveyoureadTreasure

Islandyet?

SectionA(GrammarFocus-4c)

学习目标

ØKeywordsphrases:

fiction;sciencefiction;technology;French;thinkabout;cantwait

todosth.;morethan.

ØKeysentences:

1.Sheisinterestedinscienceandtechnologyandlovestoimagine

whattheworldwillbelikein50years.

2.Shehasalreadyreadmorethan100differentbooks.

3.Whatbookshaveyoualreadyread?

ØTolearntheusageofPesentPerfectTenseandreviewother

tenses.

GrammarFocusPresentation

HaveyoureadLittleWomenyet?Yes,Ihave./No,Ihavent.

HasTinareadTreasureIslandyet?Yes,shehas.Shethinksitsfantastic.

HaveyoudecidedwhichbooktoYes,Ihave.Ivealreadyfinished

writeaboutyet?readingit.Itwasreallygood.

Howisthepresenthave/has+过去分词

perfecttenseformed?

HaveyoureadLittleWomenyet?Yes,Ihave./No,Ihavent.

HasTinareadTreasureIslandyet?Yes,shehas.Shethinksits

fantastic.

HaveyoudecidedwhichbooktoYes,Ihave.Ivealreadyfinished

writeaboutyet?readingit.Itwasreallygood.

Whatadverbsareoften

usedwiththepresentAlreadyandyet.

perfecttense?

HaveyoureadLittleWomenyet?Yes,Ihave./No,Ihavent.

HasTinareadTreasureIslandyet?Yes,shehas.Shethinksits

fantastic.

HaveyoudecidedwhichbooktoYes,Ihave.Ivealreadyfinished

writeaboutyet?readingit.Itwasreallygood.

含现在完成时的句子将助动词have/has

如何构成一般疑问句？放在主语之前。

现在完成时（一）

一、现在完成时的基本结构和主语一致

现在完成时由“助动词have/has+过去分词”构成，其基本句式结构为：

①肯定句：主语+have/has+过去分词+其他.have/has常可缩略为-ve/-s

ØIhaveseenthisfilm.havenot=havent;hasnot=hasnt

②否定句：主语+have/hasnot+过去分词+其他.