fun=interestingDo you like art?Yes, I do.Why do you like art?Because it’s fun.an easy job/thingeasy←→ difficult/hardDo you like P.E.?Yes, I do.Why do you like P.E.?Because it’s easy.Do you like Chinese?Yes, I do.Why do you like Chinese ?Because it’s interesting and important.an interesting/important book5x-10=0-7-x=84a-2+(-6)=010+(-a)+7=0Do you like math?No, I don’t.Why don’t you like math?Because it’s difficult.an useful book/bagDo you like English?Yes, I do.Why do you like English ?Because it’s interesting and useful .Do you like music?Yes, I do.Why do you like music?Because it’s easy and interesting .interesting←→boring Do you like history?No, I don’t.Why don’t you like history?Because it’s difficult and boring .1aabcd①Why don’t you do sth.?= why not do sth.? Why don’t you tell him?= _______ _____ tell him?②Why 提问的句子用 because 来回答 .3 Group work