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1、Unit3Grammaralthough意思是尽管，虽然可用于句首或者句中，但是不与but连用。虽然我的小汽车很旧，但是仍然跑的很好。Althoughmycarisveryold,itstillrunsverywell.Itstillrunsverywellalthoughmycarisveryold.Mycarisveryoldbutitstillrunsverywell.尽管他们很穷，但是他们很慷慨。Althoughtheyareverypoor,theyareverygenerous.Theyareverygenerousalthoughthey
2、areverypoor.Theyareverypoorbuttheyareverygenerous.1.尽管天在下雨但是我们一直踢球。2.虽然我爷爷年龄大了但是仍然很健康。Althoughitwasraining,westillplayedfootball.Althoughmygrandfatherisveryold,yetheisquitestrong.2.although不与aseven连用，evenif即使asif好像1.即使它是一项艰苦的工作，但我乐意做。Evenifitishardwork,Ienjoyit.2.即使失败，我仍然继续尝试下去
3、。EvenifIfail,Iwillkeeptotrying.3.他夸夸其谈，好像无所不知。Hetalksasthoughheknowseverything.3.though用作副词意思是“可是，然而，不过”此时though常放句子尾。Itishardwork,heenjoysitthough.Itoldyoutoclosethedoor,youdidn’tcloseitthough.Youtookapillbeforeyougotonashipbutyougotseasick.Althoughyoutookapillbeforeyougotonash
4、ip,yougotseasick.Unlessyoutastethetraditionalsnacks,youwillfeelsorry.Youwillfeelsorryunlessyoutastethetraditionalsnacks.Ifyoudon’thaveamap,you’llgetlosteasily.Unlessyouhaveamap,you’llgetlosteasily.You’llgetlosteasilyunlessyouhaveamap.==unless意思是“如果不….;除非….可以放在句子首或者句子的中间”有时可用if…n
5、ot替换1.他不来电话我就去.Iwillgounlesshetelephones.Iwillgoifhedoesn’ttelephone.Youwon’tcatchtheearlybusunlessyougetupearlier.如果你不早点起床的话,你就赶不上早班车①IwillnotgothereunlessIhearfromhim.②Ishallgothereunlessitrains.Ifyoudon’treadthemapcarefully,youwillgetlosteasily.(改同义句)Ifyoudon’tsleepwell,youwo
6、n’tfeelcomfortable.（同义句）UnlessIreadthemapcarefully,youwillgetlosteasily.Unlessyousleepwell,youwon’tfeelcomfortable.Moreexercise为了能得到一些锻炼,我每天骑车上学.IgotoschoolbybikeeverydaysothatIcouldgetsomeexercise.sothat:等同于‘inorderthat’,用来引导目的状语从句.可以放在句子中间，之后通常有can,will,couldmay等情态动词。inorderth
7、at1.我努力学习以便能通过考试。IstudyhardsothatIcanpasstheexam.2.我早起床是为了能够赶上车.IgetupearlysothatIcancatchthebus.sothat也可以表示结果，引导结果状语从句。此时和asaresult同意。1.他不努力学习，结果他没有通过考试。Hedidn’tstudyhardsothathedidn’tpasstheexam.2.他起床晚了结果没有赶上车。Hegotuplatesothathedidn’tcatchthebus.so…that意思是如此…以至于….so之后经常接形容词和副
8、词。such…that如此…以至于….such之后经常接名词。这个箱子是如此的重以至于我搬不动
