请问这个英文阅读该怎么做Menarethecleverestandmostdangerousanimalsontheearth.Ratscomesecond.Menkillmanybeasts,they’veevenkilledmillionsofmensinceverylongago,butratskillmoremen.Ratscarrymanydiseases（疾病

　　请问这个英文阅读该怎么做

　　Menarethecleverestandmostdangerousanimalsontheearth.Ratscomesecond.Menkillmanybeasts,they’veevenkilledmillionsofmensinceverylongago,butratskillmoremen.Ratscarrymanydiseases（疾病）andthesediseaseshavekilledandarestillkillingthousandsandthousandsofmentodayinmanycountries.Ratsaredangerousnotonlyinoneway.Theynotonlycarrydiseasesintomen’shomes,theyalsoeatupmen’sfood.Theyeat33milliontonsofgraineveryyear.Menstarve（饥饿）becauseratseattheirfood.Ratsareclever,too.Theyhavegoodleaderstotellthemthefoodisterriblewhenmenputpoisoninit.Therearealotofratsinourcitiesandvillagestoday.Wecangotothemoon,butwecannotkillalltheseterribleanimals.Isthisdangerousenemytoocleverandgrowstoofast,orarewenotcleverenoughandnotcleanenough?

　　71.Whyarepeoplethoughttobethemostdangerousanimalsintheworld?

　　______________________________________________.

　　72.Howdoratskillmen?

　　______________________________________________.

　　73.Howmuchgraindoratseatinayear?

　　______________________________________________.

　　74.Howdoratsknowthereissomepoisoninthefood?

　　______________________________________________.

　　75.Whatdoesthewriterwanttotellusaboutinthepassage?

　　_____________________________________________.