试一试: Woman: Why did you buy so much butter and sugar? Man: ___ a cake for my son's birthday tomorrow. 选出那个男人会说的话。 (I'll bake / I baked / I'm going to bake) 答案: I'm going to bake — 他买黄油和糖就是为了这个计划，所以说 I'm going to bake。
说话时才决定
说话的时候才决定，用 will：I'll help you.
You're cold? I'll close the window.
I'll call you tonight. I promise.
试一试: Man: Oh no! I left my wallet at home. Woman: Don't worry. ___ for lunch. 选出那位女士会说的话。 (I'll pay / I'm going to pay / I pay) 答案: I'll pay — 她听到他的问题后决定帮他，所以说 I'll pay。
你能看出它要发生
能看出来某件事快要发生了，用 going to。
Look at those clouds. It's going to rain.
Watch out! That glass is going to fall.
试一试: Woman: The movie starts in ten minutes, and the traffic isn't moving! Man: I know. ___ the start of the movie. 选出那个男人会说的话。 (We're going to see / We miss / We're going to miss) 答案: We're going to miss — 车一动不动，所以他们会错过开头：going to miss。
没有计划，也没做决定：两种都可以
说将来的事，既没有计划也没做决定时，will 和 going to 都可以。
You will love this book.
You are going to love this book.
试一试: Man: What's the weather going to be like tomorrow? Woman: It ___ sunny and warm. 选出那位女士会说的话。 (was / will be / has been) 答案: will be — 明天是将来，所以 will be 合适，说 is going to be 也可以。