一般现在时,频率副词,Revision,有一些词作为标志,Revision,Revision,动词的第三人称单数的变化规律,1、直接加s 2、以s,x,ch,sh,o结尾的单词，加es 3、辅音字母加y结尾的单词，变y为i+es 4、have-has,1,do- does 2.go-goes 3.say-says 4.play-plays 5.make-makes 6.write-writes 7.have-has 8.try-tries 9.cry- cries 10.carry-carries 11.wash-washes 12.watch-watches 13.fix-fixes,小试牛刀,Where do the tigers,come from,come from=be from,Where are the tigers from,This is Beijing Zoo.There are a lot of animals here elephants,bears,tigers and many others.Pandas are my facourite animals,a
