Unit 4 My Favourite Subject Lesson 3课件 人教版七年级英语上册.pptx

(GF-3d)Unit4MyFavouriteSubjectSectionAWhydoyoulikethissubject?

LearningObjectivesInthislessonyouwill:1.understandtheusageofand,butandbecause;2.useconjunctionsand,butandbecausetojoininformationtogether.3.writeapassageortellastoryusingand,butandbecause.

FreeTalkAnd,but,andbecausearewordswe’reallfamiliarwith.Imagineyou’reawordwizard.Canyoumakesentencesusingeachword?andbutbecausee.g.Mathsandsciencearemyfavoritesubjects,andtheyhelpmethinkclearly.

ThinkandSayThinkofthesentencesyou’vemade.Whenwouldyouuseand,butandbecause?andbutbecause

Readmoresentences.Completethestatementswithand,butorbecause.Ihaveartandgeographytoday.Englishisimportant,andmyEnglishteacherisreallynice.Biologyisdifficultbutimportant.Historyismyfavouritesubject,butmysisterdoesn’tlikeit.IlikeChinesebecauseit’sfun.Hedoesn’tlikemathsbecauseit’sboringtohim.

1.Weuse“________”togiveareason.2.Weuse“________”togiveanotheridea.3.Weuse“_______”togivetwodifferentideas.becauseandbutBecause,and,butareallconjunctions（连词）.

and的基本用法and的意思是“和““而且”，用来连接对等关系的词与词、短语与短语、句子与句子。E.g.Hestoodupandputonhishat.IwenttotheSummerPalace,andhewenttotheForbiddenCity.

注意当and连接两个独立句子时，通常要在and前加逗号。AShelovesreadingbooks,andheenjoyswatchingmovies.当and连接三个或三个以上元素或短语时，需要在and前加上逗号。BIboughtapples,oranges,andbananas.

but的基本用法but的意思是“但是，可是，而”，表示转折关系。E.g.Lilylikestheerhubutdoesn’tliketheviolin.Marylikestheviolin,butTomdoesn’t.Heisn’tateacherbutadoctor.在but连接的句子中，如果but后面某些成分与前面相同，则可以省略。

because的基本用法because的意思是“因为”，后面接句子。E.g.Shedidn’tgothere,becauseshewasill.BecauseIwastired,Iwenttobedearly.because后面接句子!!!

注意回答Why问句时，只能用because。AA:Whyareyoulate?B:Becauseit’sraininghardoutside.汉语中，我们经常说“因为......所以......”，但在英文中有了because，就不能再用so。BBecausehewastired,hecouldn’twalkhere.Becausehewastired,