【语法及练习3名词复数和动词三单.哥哥,姐姐,弟弟,妹妹.练习：写出下列各词的复数.I_________him_________this_______her______watch_______book_______child_______photo________diary______day________foot________】

　　语法及练习3名词复数和动词三单.哥哥,姐姐,弟弟,妹妹.

　　练习：写出下列各词的复数.

　　I_________him_________this_______her______watch_______book_______

　　child_______photo________diary______day________foot________dress________tooth_______sheep______box_______strawberry_____thief_______yo-yo______peach______sandwich______man______woman_______paper_______people________

　　二．动词三单的变化规则

　　1．一般情况下,直接加-s,如：cook-cooks,milk-milks

　　2．以s.x.sh.ch.o结尾,加-es,如：guess-guesses,wash-washes,watch-watches,go-goes

　　3．以“辅音字母+y”结尾,变y为i,再加-es,如：study-studies

　　练习:写出下列动词的第三人称单数.

　　drink________go_______stay________make________look_________

　　have_______pass_______carry____come________watch______

　　plant_______fly________study_______brush________teach_______