八大行星：Mercury(水星）,Venus（金星）,Earth（地球）,Mars（火星）,Jupiter（木星）,Saturn（土星）Uranus(天王星）,Neptune（海王星）【Pluto(冥王星）】

　　周一到周日MondayTuesdayWednesdayThursdayFridaySaturdaySunday

　　动词过去式规则的加-ed（见规则动词变化规则）；不规则的太多,查不规则动词表,并试着记住常用的不规则动词的变化形式.

　　1first,2second,3third,4fourth,5fifth,6sixth,7seventh,8eighth,9nineth,10tenth,11eleventh,12twelfth,13thirteenth,14fourteenth,15fifteenth,16sixteenth,17seventeenth,18eighteenth,19ninteenth,20tweentieth,21tweenty-first,22tweenty-second,23tweenty-third,...,30thirtieth,31thirty-first