“be + 动词不定式”与“be going to+ 动词原形”的区别
• 2）表示由于客观因素或不受人控制的将要发生 的动作时，只用“be going to+ 动词原形”，不用 “be + 动词不定式”。 • It's going to rain. • Rachel is going to faint.
“be + 动词的-ing形式”和“be going to + 动词原形”的异同
• • • • 1）表示按计划发生的动作时，两者可互换。 We are moving to a new flat tomorrow. We are going to move to a new flat tomorrow. 2）表示由于客观因素而产生的将来动作或状态 时，用be going to结构，不用be + 动词的-ing形 式。 • You are going to fall if you climb that tree. • Be careful. You are going to break that chair.
• ④ 一般现在时 一般现在时可以用来表示将来时间，主要用法有： • a. 表示由于日历或时刻表的规定而固定不变的或 比较不易变更的将来时间发生的动作。 Tomorrow is Friday. What time does the next train leave for Paris? • b. 在时间状语从句或条件状语从句中，用一般现 在时表示将来时间的动作或状态。 I'll give the book to you after I finish it. If he arrives, we must go and meet him at the railway station.
b. 表示有迹象即将要发生什么事 Look at those black clouds. It is going to rain. The car is going to turn over.
“be going to + 动词原形”与“will / shall + 动词原形”的区别
• 1）be going to通常表示很快就要发生的事，而
• 4）be going to 可用于条件句，表示将来时间， will则不能。 If you are going to attend the meeting, you'd better leave now. • ② be + 动词的-ing形式 • 表示根据现在的计划或安排，预期将会发生某事， 这种安排不容随意改变。如arrive, come, go, leave, move, start, stay, get 以及eat, meet, see off, die等，并与表示将来的时间状语连用。如果没 有时间状语，则所表示的动作有即将发生之意。 •
一般将来时
（一） 一般将来时的构成
• 1.定义：将来要发生的动作或状态。
• 2.标志词：tomorrow， in the future，next week， this Friday,soon,two days later,in+一段时间,one day someday, from now on等。
• He'll be going with us tomorrow.
• ①用于I expect, I‘m sure, I think, I wonder + 宾从
• Don't worry about the exam. I'm sure you'll pass.
• I wonder what will happen.
• c. 在hope, suppose等后面的宾语从句中常用一般现在时表示将来
动作或状态。 I hope all is well with him.
• be about to do when sth happens 即将发生的动作 。
• The new term is abou to begin. • be due to do sth 表示按计划或时间将要发生的事情。 • The talk is due to last five days. • There be句型的将来时
• ②用于“祈使句 + and + 陈述句”中
Work hard and you will succeed.
Go at once and you will see her.
• ③与表示时间或条件的状语从句连用
• I'll let you know as soon as he arrives
• If you ask him, he will help you.
• We shall go unless it rains.
将来时间的其他表达法
• ①be going to + 动词原形
“be going to+ 动词原形”这一结构常用于口语中。
• a. 表示决定或打算要做某事
• • I'm going to buy a new coat this winter. Are you going to play basketball after class?
will/shall既可表示不久的将来，也可表示长远的
将来或不确定的将来。
• She is going to get better.
• She will get ቤተ መጻሕፍቲ ባይዱetter.
• 2）will表示将来，通常是指事先无计划的意图，是临时决定的；
be going to则表示事先有计划的意图，是经过考虑的。 • — George phoned while you were out. — Ok. I'll phone him back.
• c. 表示命令或吩咐等。否定形式常表示 “禁止”或“不许”。 • You are to be back before 10 p.m.. • You are not to go out alone at night. • 1）“be going to+ 动词原形”侧重说话人 个人的意图和打算，“be + 动词不定式” 侧重受别人的指示或安排要做的事 • I'm going to try my best to write this article well. • Am I to wait here till their arrival?
— Matthew phoned while you were out. • — Yes, I know. I'm going to phone him back. 3）表示有迹象显示将要发生某一动作时，要用be going to，不用 will或shall。 I feel terrible. I think I'm going to be sick.
• 3.构成:shall • will
• be going to
一般将来时的常用结构
• 在口语中，常用will / shall + be doing结构来代替will /
shall + 动词原形，以表示生动。
• I'll be seeing a friend off at the airport.
• ③ be + 动词不定式
• a. 表示按计划或安排将要发生的
• The highway is to be open to traffic in May. Am I to take over his work? • b. 用于条件句中强调按计划或安排将要发生 的动作 If we are to take the 5:00 train, we must leave now.