
天氣的種類: thunderstorm, hailstorm, tornado, sandstorm.blizzard.monsoon,humncane 風(fēng)暴的組成部分: sand grain, snowflake crystal, raindrop, hail pelet 數(shù)詞的用法,例如:billion,trillion 介詞的用法,例如:in,on, over, into 連詞的用法,例如:and,so,until 情態(tài)動(dòng)詞的用法,例如:can 并列句,例如: Weather cools and heats our planet so it is just rightfor life. 定語(yǔ)從句,例如: Monsoons are winds that change each season. 特殊疑問(wèn)句,例如:What's happening?