该选哪种将来时 (A2)

am/is/are + -ing 用来说和别人约好的将来安排，有确定的时间或地点，是已经订好的，不只是个想法。

定好的安排：am/is/are + -ing

• I'm meeting the doctor at 3pm. (booked)
• We're having dinner with Lars on Friday.
• She's starting her new job on Monday.

三种将来时，放在一起比比看

当场决定、说想法、或提议 → 用 will。之前就定好的计划，或看到证据判断 → 用 going to。和别人约好的安排 → 用 am/is/are + -ing。

• My tooth hurts. I'll call the dentist. (deciding now)
• I'm going to see a dentist soon. (an intention)
• I'm seeing the dentist at 4. (a booked time)
• 试一试: Amina 已经预约好了。她今天下午 3 点要去看医生，全都提前安排好了。 哪种适合已经订好的安排？ (I'm seeing the doctor at 3. / I'll see the doctor at 3.) 答案: I'm seeing the doctor at 3. — 这是提前订好的安排，所以用 am/is/are + -ing：I'm seeing the doctor.（我要去看医生。）“I'll see” 听起来像是这一秒才决定的，但其实早就安排好了。
• 试一试: Hiroshi 已经预约好了星期五 4 点的牙医。诊所那边全都定好了。 哪种适合已经和别人约好的预约？ (I'm seeing the dentist at 4 on Friday. / I'm going to see the dentist some time.) 答案: I'm seeing the dentist at 4 on Friday. — 时间已经和诊所定好了，所以这种约好的安排用 am/is/are + -ing：I'm seeing the dentist at 4 on Friday.（我星期五 4 点要去看牙医。）“I'm going to see the dentist” 只是个打算，并没有定好具体时间。
• 试一试: Mei 已经预约好了：她星期二 4 点要去看牙医。 Lars 看到乌云，从眼前的情况判断，快要下雨了。 把每句和对应的将来时配对，该用哪种？ 答案: Mei 已经预约好了：她星期二 4 点要去看牙医。 → 1 → She's seeing the dentist at 4. · 2 → It's going to rain. Lars 看到乌云，从眼前的情况判断，快要下雨了。 → 1 → She's going to see the dentist at 4. · 2 → It'll rain. — 已经订好的预约 → 用 am/is/are + -ing（she's seeing the dentist）。从眼前证据做出的预测 → 用 going to（it's going to rain）。一个是安排好的，一个是看云判断出来的。

Will：will + 动词原形

用 will + 动词原形来构成——I、you、he、she、we、they 都一样。否定：won't（= will not）+ 动词原形。疑问：Will + 这个人 + 动词原形 …?

• I will call you. → I'll call you.
• He won't be late.
• Will you help me?
• Not "He will comes later." — say "He will come later.". will 后面用不加 -s 的动词原形：will come，不是 "will comes"。
• 试一试: 组一个问句：问朋友明天愿不愿意帮你。 答案: Will you help me tomorrow? — will 的疑问句用 Will 开头，然后是主语，再是动词原形：Will you help me tomorrow? 动词保持原形（help，不是 "helps"）。

Going to：am/is/are + going to + 动词

用 am/is/are + going to + 动词原形来构成。否定：'m not / isn't / aren't going to + 动词原形。疑问：Am/Is/Are + 主语 + going to + 动词原形 …?

• I'm going to cook tonight.
• She isn't going to come.
• Are you going to study later?
• Not "I going to call her." — say "I'm going to call her.". 不要漏掉 am/is/are：I'm going to、she's going to——不能说 "I going to"。
• 试一试: Sara has no plan to come. ___ (She isn't going to come. / She isn't going to comes. / She not going to come.) 答案: She isn't going to come. — going to 的否定 = isn't/aren't going to + 动词原形：She isn't going to come。要保留 is（不能说 "She not going to"），动词用原形 come（不是 "comes"）。

约好的安排：否定和疑问

表示约好的安排，形式是 am/is/are + -ing。否定：'m not / isn't / aren't + -ing。疑问：Am/Is/Are + 主语 + -ing …?

• I'm not working on Monday.
• She isn't coming to the party.
• Are you meeting Sara at five?
• Not "Are you meet Sara at five?" — say "Are you meeting Sara at five?". 要保留 -ing：Are you meeting …?，不是 "Are you meet …?"。
• 试一试: Sara's diary shows a 5pm plan with you. Ask about it: ___ (Are you meeting me at five? / Do you meeting me at five? / Are you meet me at five?) 答案: Are you meeting me at five? — 问约好的安排，用 Am/Is/Are + 主语 + -ing：Are you meeting me at five? 要用 are（不是 "do"），并保留 -ing（不是 "meet"）。

打算，还是定好的时间？

going to = 你心里的计划或打算，还没有定下时间。am/is/are + -ing = 你已经和别人定好的时间。

• I'm going to visit Grandma soon. (an intention)
• I'm visiting Grandma on Sunday at 2. (a fixed time)
• We're going to paint the flat → We're painting it on Saturday. (now booked)

怎么选将来形式

问问自己：我是当场决定、提议，还是没有依据地预测？→ will。我有计划，或者看到了迹象？→ going to。这是和别人定好的安排？→ am/is/are + -ing。

• The phone's ringing — I'll get it. (deciding now)
• Look at those clouds! It's going to rain. (evidence)
• I'm having lunch with Sara tomorrow. (arranged)