连词althoughunless so that学习教程.pptx

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1、although意思是“尽管，虽然”,大部分情况下可以和though互换。可用于句首或者句中。当although引导的从句放在句首时,主句与从句之间要用逗号隔开。although不能与but，however连用。可以和still,yet同时出现。第1页/共20页虽然我的小汽车很旧，但是仍然跑得很好。Althoughmycarisveryold,itstillrunsverywell.Itstillrunsverywellalthoughmycarisveryold.Mycarisveryold，butitstillrunsverywell.第2页/共20页尽管他们很穷，但是他们很慷慨。Alth

2、oughtheyareverypoor,theyareverygenerous.Theyareverygenerousalthoughtheyareverypoor.Theyareverypoor，buttheyareverygenerous.第3页/共20页eventhough即使1.即使它是一项艰苦的工作，但我乐意做。Eventhoughitishardwork,Ienjoyit.2.即使失败，我仍然继续尝试下去。EventhoughIfail,Iwillkeeptrying.第4页/共20页1.it rained heavily/it was still hot.2.I got hot

3、and sweaty/I walked slowly 3.there was a train every five minutes/it was still very crowded Although it rained heavily,it was still hot.I got hot and sweaty although I walked slowlyAlthough there was a train every five minutes,it was still very crowded.第5页/共20页4.I got lost/I was sure I read the map

4、correctly5.I ate healthily every day/I got ill last week 6.I felt very tired/I slept well last night I got lost although I was sure I read the map correctly.Although I ate healthily every day,I got ill last week.I felt very tired although I slept well last night.第6页/共20页unless“如果不,除非”引导条件状语从句，主句用一般将

5、来时、含情态动词、祈使句时，unless从句用一般现在时。1.WecantgotothepartytomorrowunlessMr.Smithdoes.2.YouwontseetheraisingofthenationalflagunlessyougettoTiananmenSquarebeforethesunrises.第7页/共20页unless相当于if not。Unless he studies hard,he wont catch up with others.-If he doesnt study hard,he wont catch up with others.He wont

6、leave his home unless his parents agree.-He wont leave his home if his parents dont agree.第8页/共20页1If you dont read the map carefully,you will get lost easily.2If you dont sleep well,you wont feel comfortable.Unlessyoureadthemapcarefully,youwillgetlosteasily.Unlessyousleepwell,youwontfeelcomfortable

7、.第9页/共20页 unless引导的从句放在主句之前时,要用逗号将从句与主句隔开。Unless you get up early,you wont catch the early bus.Unless it rains tomorrow,I will go to the beach for a picnic.Unless you speak English every day,you cant improve it quickly.第10页/共20页Dont leave the building unless you are told to do so.You wont catch the

8、early bus unless you get up earlier.除非有人叫你这么做,否则不要离开大楼.如果你不早点起床的话,你就赶不上早班车翻译第11页/共20页1.为了能和父亲去游泳,我迅速做完了作业.2.为了能得到一些锻炼,我每天骑车上学.I finished my homework quickly so that I could go swimming with my dad.I go to school by bike every day so that I could get some exercise.sothat:“以便，为了”,用来引导目的状语从句.从句中通常有can,

9、could,will,may等情态动词。第12页/共20页1.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.3.我大声说话是为了让你听见。Ispeakloudlysothatyoucanhearme.第13页/共20页sothat也可以表示结果，表示“以至,结果”,引导结果状语从句。1.他不努力学习，结果他没有通过考试。Hedidntstudyhardsothathedidntpasstheexam.2.他起床晚了结果没有赶上车。Hegotuplateso

10、thathedidntcatchthebus.第14页/共20页sothat“如此以至于.”so之后加形容词和副词的原级。suchthat“如此以至于.”such之后加被修饰过的名词。这个箱子是如此的重以至于我搬不动。TheboxissoheavythatIcantcarryit.ItissuchaheavyboxthatIcantcarryit.第15页/共20页他是如此的胖以至于无法通过这门。Heissofatthathecantgothroughthedoor.Heissuchafatmanthathecantgothroughthedoor.第16页/共20页while表示“在的时候”

11、、“在期间”。引导的从句中必须用延续性动词。Theweatherwasfinewhilewewerethere.ShecalledwhileIwasaway.主句的动作与从句的动作同时发生，从句常用进行时。Whilewewereswimming，someonestoleourclothes.Donttalksoloudwhileothersareworking.第17页/共20页while作并列连词用，意思为“然而”。1.Somepeoplewastefoodwhileothersdonthaveenough.有些人很费粮食，然而有些人却吃不饱。2.Thesonwashavingagoodme

12、alathome，whiletheparentswereworkinginthefields.儿子在家吃好饭而父母却在田里辛勤劳作。第18页/共20页since:1.“自从以来”，主句谓语动词应用延续性动词,常用现在完成时态。他从1949年以来一直住在这里。Hehaslivedheresince1949.自从他来到这儿，学习就非常努力。Hehasstudiedveryhardsincehecamehere.Its+时间段+since一般过去时态的句子我们到达此地刚好一个星期。Itisaweeksincewearrivedhere.2.意思是“既然，因为”。因为我们没钱，我们买不起它。Sincewehavenomoney,wecantbuyit.因为你坚持，我就必须去了。Sinceyouinsist,Imustgo.第19页/共20页感谢您的观看！第20页/共20页