人教版八年级英语下册教学课件《Unit 6 Section A Grammar Focus-4c》.pptxVIP

SectionAGrammarFocus-4c;Tolearntheusageofunless,assoon

asandso…that.

TolearntheGrammarFocus.

Tolearnnewwords:fit,couple,

smile,marry…;Freetalk;Onceuponatime,therewasaveryoldman…themountainsweresohighandbigthatittookalongtimetowalktotheotherside…Theoldmandecidedtomovethemountains…;Oneday,amantoldYuGongthathecouldneverdoitbecausehewasoldandweak.Assoonasthemanfinishedtalking,YuGongsaidthathisfamilycouldcontinueto…;YuGongsaidtheycouldputthemintotheseabecauseit’sbigenoughtoholdeverything.;从前

n.继(姐妹)

n.王子

爱上；喜欢上

v.适合；合身

n.(尤指)夫妻；两人；两件事物

v.n.笑；微笑

v.结婚

结婚;Howdoesthestorybegin?;WhywasYuGongtryingtomovethemountains?;conditionalclauseswithifandunless

含有if的复合句由两个分句组成；if为连词，引导条件状语从句，另一句为主句。

如果谈论的是某一个动作发生后势必会产生某个结果，那么主从句都用一般现在时态。;e.g.Ifyouboilwater,itbecomessteam.

Ifyoudropaglass,itbreaks.

Ifyouheatmetal,itmelts.

Ifyourun,yousweat.

Ifyouputwoodintowater,it__________

(float).;如果谈论的是“如果”某一个动作或事情发生后，很可能将会产生某种结果，那么在复句中主句的动词用一般将来时，而if从句仍然是一般现在时。;e.g.Ifitrains,wewon’ttakeahiketomorrow.

Hewillgetupschoolontimeiftheclockgoes

off.

IfhearrivesinHongKong,hewillcallme.

Ifyoudon’tstartearly,you____________the

beginningofthefilm(miss).;若if条件句放句首，从句后面要加逗号，和主句隔开。unless与if用法相似，相当于if…not。

e.g.Youwillfailtheexamifyoudon’tprepareforit.

→Youwillfailtheexamunlessyouprepareforit.

Ifhedoesn’tlookupthewordinthedictionary,

hewon’tknowitsmeaning.

→Hewon’tknowtheword’smeaningunlesshe

looksitupinthedictionary.;;I’llbequitegladifshedoesn’tcomethisevening.

她今晚如果不来我很高兴。

Unless?you?take?more?care,?you’ll?have?an?accident.如果不多加小心的话，你会出事故的。

My?baby?sister?never?cries?unless?she?is?hungry.?

我那刚出生的妹妹除非饿了，否则她是从来不哭的。;Don’t?promise?anythi