一、定義
將來時表示將來某一時刻的動作或狀態(tài)，或將來某一段時間內經常的動作或狀態(tài)。常常和表示將來的時間狀語連用。
二、結構
（一）基本結構
1、will / shall + 動詞原形（否定句在will/shall后加not）
2、be going to+動詞原形 be going to 相當于一個助動詞(其中be有人稱和數(shù)的變化),與它后

3.用于"I expect, I'm sure, I think, I wonder等的賓語從句"中。
Don't worry about the exam. I'm sure you'll pass.
不要擔心這次考試，我確信你會通過的。
2、用于祈使句和陳述句中。
Work hard and you will succeed.
如果你努力，就會成功的。
3、與表示時間或條件的狀語從句連用。
I'll let you know as soon as he arrives.
他一到我就通知你。
will與be going to 的分別 be going to與will兩者都可表示將要發(fā)生的事、將要去做某事，但它們有如下幾點區(qū)別：
going to 表示將要發(fā)生的事情，will 表示的時間則較遠一些，如：
He is going to write a letter tonight. He will write a book one day.
going to 表示根據(jù)主觀判斷將來肯定發(fā)生的事情，will表示客觀上將來勢必發(fā)生的事情。 如：He is seriously ill. He is going to die. He will be twenty years old.
going to 含有“計劃，準備”的意思，而 will 則沒有這個意思，如：
She is going to lend us her book. He will be here in half an hour.
4.在有條件從句的主句中，一般不用 be going to, 而多用will, 如：
If any beasts comes at you, I'll stay with you and help you.
going to和will在含義和用法上稍有不同。be going to往往表示事先經過考慮的打算；will多表示意愿，決心。兩者有時不能互換。如：
She is studying hard and is going to try for the exams.
她正努力學習并嘗試參加考試。（is going to不能用will替換）

（1））They_________ (write) letters the whole morning. They
didn't have a rest.
（2）Look! The children_________ (play) in the park.
（3）Yesterday I_________ (go) to_________ (see) a film. On my way to the cinema, I_________ (meet) your mother there. We_________ (talk) a lot.We_________ (be) very happy.
（4）We_________ (have) a good time in the Summer Palace last
Sunday.
（5）He _________ (break) his left leg in the accident yesterday. His friends _______(take) him to hospital at once.
（6）Stop _________ (talk), class begins now." The teacher says. All the students stop ________(listen) to the teacher.
（7）Don't forget ________ (close) the window when you leave the room.
（8） Why not__________ (go) to the park with me tomorrow?
（9）My mother asked me ________ (help) her _________ (clean)
the room.
（10）Miss Green_________ (teach)in that school since about ten years ago.
?