does 一般現(xiàn)在時
一、 一般現(xiàn)在時：
1.概念：經(jīng)常、反復(fù)發(fā)生的動作或行為及現(xiàn)在的某種狀況.
2.時間狀語：always,usually,often,sometimes,every week (day,year,month…),once a week,on Sundays,
3.否定形式：am/is/are+not;此時態(tài)的謂語動詞若為行為動詞,則在其前加don't,如主語為第三人稱單數(shù),則用doesn't,同時還原行為動詞.
4.一般疑問句：把be動詞放于句首；用助動詞do提問,如主語為第三人稱單數(shù),則用does,同時,還原行為動詞.
例句：.It seldom snows here.He is always ready to help others.