1、定義：表示將要發(fā)生的動作或存在的狀態(tài)，以及打算、計劃或準(zhǔn)備某事。句中一般含有表示將來的時間狀語，如：tomorrow morning，next week，this afternoon等表示將來的時間狀語。
2、構(gòu)成：
① be gong to +動詞原形
如：I am going to see a Beijing opera tomorrow.
We are going to meet at bus stop at half past ten.
Dad and I are going to see a Beijing opera this afternoon.
② will +動詞原形
如：They will go swimming this afternoon.
3、be going to 和will 區(qū)別：
① be going to表示經(jīng)過事先安排、打算或決定要做的事情，基本上一定會發(fā)生;will則表示有可能去做，但不一定發(fā)生，也常表示說話人的臨時決定。
如：I am going to take part in a party this evening.
They are cleaning the library now. I’ll go and join them.
②be going to表示近期或眼下就要發(fā)生的事情;will表示的將來時間則較遠(yuǎn)一些。如：He is going to write a letter tomorrow. I will meet her one day.
③ be going to還可以用來表示有跡象表明某件事將要發(fā)生，常用于天氣等自然現(xiàn)象。如：Look! It’s going to rain.
4、一般將來時句型轉(zhuǎn)換：
肯定句/否定句/一般疑問句及回答
She is going to have a picnic tomorrow./She isn’t going to have a picnic tomorrow./—Is she going to have a picnic tomorrow?—Yes, she is. / No, she isn’t.
They will go swimming this afternoon./They will not(won’t) go swimming this afternoon./—Will they go swimming this afternoon?—Yes, they will. / No, they won’t.
2、構(gòu)成：
① be gong to +動詞原形
如：I am going to see a Beijing opera tomorrow.
We are going to meet at bus stop at half past ten.
Dad and I are going to see a Beijing opera this afternoon.
② will +動詞原形
如：They will go swimming this afternoon.
3、be going to 和will 區(qū)別：
① be going to表示經(jīng)過事先安排、打算或決定要做的事情，基本上一定會發(fā)生;will則表示有可能去做，但不一定發(fā)生，也常表示說話人的臨時決定。
如：I am going to take part in a party this evening.
They are cleaning the library now. I’ll go and join them.
②be going to表示近期或眼下就要發(fā)生的事情;will表示的將來時間則較遠(yuǎn)一些。如：He is going to write a letter tomorrow. I will meet her one day.
③ be going to還可以用來表示有跡象表明某件事將要發(fā)生，常用于天氣等自然現(xiàn)象。如：Look! It’s going to rain.
4、一般將來時句型轉(zhuǎn)換：
肯定句/否定句/一般疑問句及回答
She is going to have a picnic tomorrow./She isn’t going to have a picnic tomorrow./—Is she going to have a picnic tomorrow?—Yes, she is. / No, she isn’t.
They will go swimming this afternoon./They will not(won’t) go swimming this afternoon./—Will they go swimming this afternoon?—Yes, they will. / No, they won’t.