【正文】
小學(xué)英語語法時態(tài)講解與歸納 ~~ 一般現(xiàn)在時一. 意義:表示經(jīng)常發(fā)生的事情,動作或存在的狀態(tài)二. 構(gòu)成及變化??隙ň洌褐髡Z+be(am ,is ,are)+其它。如: I am a 。否定句:主語+ be + not +其它。如:He is not a 。一般疑問句:Be +主語+其它。如:Are you a student? Yes. I am. / No, I39。m not.特殊疑問句:疑問詞+一般疑問句。如:Where is my bike?2. 行為動詞的變化。l、當(dāng)主語為第一,二人稱及復(fù)數(shù)時,助動詞為do肯定句:主語+動詞原形(+其它)。如: We often play basketball after school.否定句:主語+ don39。t+動詞原形(+其它)。如:we don’t play basketball after school.一般疑問句:Do +主語+動詞原形+其它?如: Do you often play basketball after school l? Yes, we do. / No, we don39。t.特殊疑問句:疑問詞+以do開頭的一般疑問句?如: What do you often do after school ?2、當(dāng)主語為第三人稱單數(shù)時 ,助動詞為does肯定句:主語+動詞三單式(+其它)。如: He swims well.否定句:主語+ doesn’t+動詞原形(+其它)。如:He doesn’t swim well..一般疑問句:Does +主語+動詞原形+其它。如:Does he swim well ?Yes, he does. / No, he doesn39。t.特